CN109139278A - Control the method and engine controller of internal combustion engine - Google Patents

Abstract

The present invention relates to a method and engine controller for controlling the operation of an internal combustion engine having multiple working chambers to deliver a desired output. Therein, a method is provided for controlling operation of an internal combustion engine having a plurality of working chambers to deliver a desired output, wherein each working chamber has at least one intake valve actuated by a cam and has at least one exhaust gas a valve, the plurality of working chambers including a first set of working chambers and a second set of working chambers, each set of working chambers including at least one working chamber, wherein the working chambers in the first set are deactivable and the working chambers in the second set The working chambers cannot be deactivated during operation of the engine, the method comprising: by causing each working chamber in the second set to be fired during each engine cycle and activating the working chambers in the first set The chambers are sometimes fired and sometimes skipped to operate the engine to deliver the desired engine output; and the setting of each fired duty cycle is based on whether a high or low torque output is selected for that fired duty cycle. Air intake.

Description

Control the method and engine controller of internal combustion engine

Cross reference to related applications

The application is that international filing date is on November 09th, 2015, and the date into National Phase in China is 2017 05 The moon 03, application No. is the divisional applications of the Chinese patent application of entitled " multistage skips igniting " of " 201580059861.X ".

It is entitled " multistage dynamically to skip igniting (Multi Level this application claims what is submitted on November 10th, 2014 Dynamic Skip Fire) " U.S. Provisional Patent Application No. 62/077,439, on 2 17th, 2015 titles submitted For the U.S. Provisional Patent Application No. 62/117,426 of " multistage dynamic skips igniting ", on 2 26th, 2015 titles submitted For the U.S. Provisional Patent Application No. 62/121 of " skipping igniting (Using Multi-Level Skip Fire) using multistage ", 374, the U.S. of entitled " multistage skips igniting (Multi-level Skip Fire) " submitted on October 21st, 2015 The U.S. of number of patent application 14/919,011 and entitled " multistage skips igniting " submitted on October 21st, 2015 is special The priority of sharp application number 14/919,018, for all purposes, each of these applications application with entire contents simultaneously Enter herein.

Technical field

The present invention relates to the operations for controlling the internal combustion engine with multiple operating rooms to deliver desired output Method and engine controller and the method and system for running engine in a manner of ignition type to skip.Multiple and different Embodiment in, describe and skip ignition type engine control system, these system property of can choose by operating room deactivate simultaneously And it is lighted a fire with multiple and different output level.

Background technique

Now most of vehicles (and many other devices) be by internal combustion (IC) engine provide power. Internal combustion engine typically has multiple cylinders or other operating rooms, burns in these cylinders or other operating rooms.? Under normal driving conditions, the torque needs that internal combustion engine generates change in wide in range range, to meet the behaviour of driver It needs.Come year in year out, it has been suggested that and a variety of methods for controlling internal combustion engine torque are utilized.Some such ways Diameter considers the effective discharge for changing engine.The engine control means for changing engine effective discharge can be classified into two The control of seed type, multiple fixed displacement formula and skips ignition type.In the multiple displacement control of fixation, some fixed groups Cylinder deactivates under low load conditions；For example, can be under certain conditions with same 4 cylinders come 8 cylinders that run Engine.In contrast, skip ignition type engine control imagine be selectively skipped over during selected ignition timing it is certain The igniting of cylinder.Therefore, specific cylinder can be ignited in an engine cycles and then can start next It is skipped in machine cyclic process, and is then optionally skipped or lights a fire in next engine cycles.Example Such as, to lighting a fire every two cylinders and providing the effective discharge of the l/3 of maximum engine discharge capacity in 4 Cylinder engines, this It is by simply deactivating the unobtainable component discharge capacity of one group of cylinder.Similarly, in 3 Cylinder engines every one Cylinder light a fire by provide 1/2 effective discharge, this be by simply deactivate the unobtainable component discharge capacity of one group of cylinder. U.S. Patent number 8,131,445 (is submitted by present assignee and is combined in its entirety by reference for all purposes A variety of igniter motors of skipping have been taught herein) controls implementation.Generally, skipping ignition type engine control is considered Multiple potential advantages are provided, the potential including significantly improving the fuel economy in many applications.Although skipping ignition type hair The concept of motivation control has existed many years, and its benefit is illustrated in people, but skips ignition type engine control and also fail to Reach significant business success.

It is well known that running engine tends to be significant noise and vibration source, they are frequent in the art Summation it is referred to as NVH (noise, vibration and injustice are pliable).Generally, prejudice associated with ignition type engine control is skipped Be engine skip ignition type operation will be so that engine operating be significant more roughly, that is, start relative to conventional operation Machine increases NVH.In many applications of such as automobile application, skip ignition type engine control showed it is most significant Challenge first is that vibration control.In fact, unsatisfactorily solving NVH misgivings is considered as hindering to be widely used to skip One major obstacle of the engine control of ignition type type.

U.S. Patent number 7,954,474；7,886,715；7,849,835；7,577,511；8,099,224；8,131,445 With 8,131,447 and U.S. Patent Application No. 13/004,839；13/004,844；It is elaborated with other documents so as to jump It crosses ignition type operational mode and runs the various feasible diversified engine controllers of internal combustion engine.These are specially Benefit and patent application are each by being incorporated herein by reference.Although the controller work illustrated is good, keep punching into One step improves these and other and skips the performance of ignition type engine controller further to mitigate and skip ignition type control The NVH problem of lower operation engine.The application elaborates to improve the additional of engine performance in diversified application Skip ignition type controlling feature and improvements.

Summary of the invention

The present invention relates to skip ignition type engine control.On the one hand, it describes a kind of for controlling the side of engine Method.It skips the selected working cycles being skipped and makes selected movable working cycles igniting, to deliver desired hair Machine is sent to export.One or more operating rooms can for example for the setting of identical cam phaser and/or MAP, (inlet manifold be exhausted To pressure) the multiple possible horizontal torques outputs of setting generation.The operating room being ignited for these is (that is, need to be ignited Operating room) each of operating room's selection specified level torque output (for example, high or low torque export).This herein by Referred to as multistage skips ignition type engine control.In a variety of different designs, selected in the operating room that is ignited based on these Be high torque output or low torque output, to adjust the air inlet amount for the operating room that these are ignited.It is multiple and different Embodiment is related to the engine controller, software and system for helping to implement the above method.

On the other hand, a kind of engine controller is described.The engine controller includes multiple operating rooms.Each work It include at least one by cam-actuated intake valve as room.The engine controller includes igniting interpolater, ignition timing Determining module and ignition control unit.The igniting interpolater is arranged to for determining suitable for desired by delivering The igniting score of torque.The ignition timing determining module is arranged to for skipping ignition type point based on the igniting score next life Fiery sequence.This is skipped ignition type igniting sequence and indicates that during selected ignition timing, selected operating room is deactivated still It is ignited；And it further indicates for igniting every time, which produces low torque output or high torque output.It should Ignition control unit is arranged to for operating these operating rooms in a manner of skipping igniting based on the igniting sequence.More In a different embodiment, which is also arranged to be directed to the work being each ignited based on the igniting sequence Room (that is, each operating room that will be ignited) is intended that low torque output or high torque output were ignited to adjust this The air inlet amount of operating room.

Multistage is skipped ignition type engine control and can be carried out in a manner of diversified.It in some embodiments, is example It is such as to light a fire the decision being also to skip, and/or to make about for quilt based on by ignition timing making about each working cycles The decision whether operating room of igniting selects the torque of specified level to export.It can be by using one or more look-up tables, electricity Road, sigma delta converter or other technologies make such decision.

A variety of different systems can be used to control the output of the torque for the operating room that these are ignited.Such as some In approach, one or more operating rooms in these operating rooms's (respectively including one or more intake valves) are independent controls. These intake valves can at different times and/or according to different circulation (for example, Ai Jinsen (Atkinson) circulation and Otto (Otto) circulation) it opens or closes, this can help the torque output for changing the operating room.It can be based on by work Cyclically these intake valves of independent actuation or deactivated operating room.In a number of different embodiments, the valve control for operating room System processed make the operating room identical engine condition (such as identical cam phaser setting, throttle position setting, And/or engine speed setting) under be capable of providing two, three, or more torque output level.It is to be understood that herein The described method that ignition type engine control is skipped for implementing multistage can be with the design of any suitable operating room or valve Control system is used together.

On the other hand, a kind of engine system is described.The engine system includes inlet manifold, one or more works Make room and two or more intake channels.In a number of different embodiments, two intake channels are connected with operating room. This two intake channels are arranged so that the axis of centres of each of these intake channels intake channel relative to the operating room Line substantially intersects with the central axial line of the operating room.

Another aspect, describe it is a kind of for control with multiple operating rooms internal combustion engine operation to deliver The method of desired output, wherein each operating room is with by least one cam-actuated intake valve and at least one A exhaust valve, the multiple operating room include first group of operating room and second group of operating room, and every group of operating room includes at least one Operating room, wherein the operating room in first group is operation of the operating room can deactivate and in second group in the engine It cannot be deactivated in the process, this method comprises: by making each operating room in described second group in each cycle of engine phase Between be ignited and so that the operating room in described first group is ignited and is skipped sometimes sometimes run the engine with Deliver desired engine output；And based on selected in each working cycles being ignited high torque export or it is low Torque output, the air inlet amount of the working cycles being ignited is arranged.

Another aspect, describe it is a kind of for control with multiple operating rooms internal combustion engine operation to deliver The method of desired output, wherein each operating room has at least one intake valve and at least one exhaust valve, this method packet It includes: running the engine in a manner of skipping igniting, which is to skip the selected working cycles being skipped and make Selected working cycles igniting exports to deliver desired engine；And based on being selected in each working cycles being ignited High torque output or low torque output are selected, to adjust the air inlet amount of the working cycles being ignited, in which: described Engine includes first group of one or more operating room and second group of one or more operating room；It is every in described first group A operating room, which is arranged to, to be selectively ignited or is deactivated；And each operating room in described second group is arranged to It is ignited during each cycle of engine, and cannot be deactivated in the operational process of the engine.

Another aspect describes a kind of engine controller for including the engine of multiple operating rooms, each work Room includes one or more by cam-actuated intake valve, and the multiple operating room is arranged to first group of operating room and second Group operating room, wherein each operating room in first group of operating room can be exported igniting with high torque, be exported with low torque It lights a fire or is deactivated；And during each operating room in second group of operating room is arranged in each cycle of engine It is ignited, and cannot be deactivated in the operational process of the engine；Wherein the high torque output igniting and low torque Output igniting has a different air inlet amounts, and by move axially camshaft so that different cam protrusion with One or more of air inlet valve levers by cam-actuated intake valve engage to adjust the air inlet amount.

Detailed description of the invention

By referring to the explanation provided below in conjunction with attached drawing, the present invention and its advantage can be best understood, in attached drawing In:

Figure 1A and 1B is the section view of operating room according to a particular embodiment of the present invention and associated valve control system Figure.

Fig. 2-7 is the schematic diagram for showing the valve control system of multiple and different embodiments according to the present invention.

Fig. 8 is the curve graph for showing the valve promotion degree according to a particular embodiment of the present invention for operating room and adjusting.

Fig. 9 is valve control system according to a particular embodiment of the present invention.

Figure 10 is the schematic diagram for showing exemplary intake channel.

Figure 11 is the schematic diagram for showing intake channel according to a particular embodiment of the present invention.

Figure 12 A-12F is the multiple operation ranks for showing the operating room of multiple and different embodiments according to the present invention and intake valve The schematic diagram of section.

Figure 13 A-13B be show multiple and different embodiments according to the present invention how can operate multiple valves to generate work Make the chart of the torque output of multiple and different levels of room.

Figure 14 A-14H is the figure for showing multiple and different embodiments, the different arrangement of operating room and feature according to the present invention Table.

Figure 15 is the schematic diagram of one group of cylinder according to a particular embodiment of the present invention.

The block diagram of Figure 16 engine controller according to a particular embodiment of the present invention.

Figure 17 is according to a particular embodiment of the present invention a kind of for implementing the multistage side for skipping ignition type engine control The flow chart of method.

Figure 18 is to indicate that the maximum changed with engine speed and effective igniting score allows operating room's output Exemplary look-up table.

Figure 19 is the exemplary lookup for indicating the igniting score and horizontal score that change with effective igniting score Table.

Figure 20 is exemplary circuit according to a particular embodiment of the present invention, that generation multistage skips ignition type igniting sequence Schematic diagram.

Figure 21 is exemplary circuit according to another embodiment of the present invention, that generation multistage skips ignition type igniting sequence Schematic diagram.

Figure 22 skips ignition type igniting the exemplary of sequence there is provided the multistage changed with effective igniting score and looks into Look for table.

Figure 23 is flow chart, illustrates in the transient process between multiple igniting scores and skips ignition type using multistage The illustrative methods of engine control.

Figure 24 is flow chart, is illustrated according to a particular embodiment of the present invention for detecting and managing quick-fried in engine The illustrative methods of shake.

Figure 25 is flow chart, illustrates a kind of run in response to specific engine and starts to skip ignition type using multistage The illustrative methods of machine control.

Figure 26 is flow chart, illustrates one kind according to a particular embodiment of the present invention and asks for diagnosing and managing engine The illustrative methods of topic.

In the accompanying drawings, identical structural element is indicated using identical reference number sometimes.It should also be appreciated that attached drawing In description be it is graphic rather than in proportion.

Specific embodiment

The present invention relates to a kind of for skip the system for running engine in a manner of ignition type.More precisely, of the invention Multiple and different implementations are related to a kind of jump that can come that selectively operating room lights a fire with multiple and different torque output level Cross ignition type engine control system.

Generally, it skips ignition type engine control imagination and is selectively skipped over certain during the ignition timing of selection The igniting of a little cylinders.Thus, for example, specific cylinder can be ignited during an ignition timing and then can be It is skipped during next ignition timing, and is then optionally skipped during next ignition timing or point Fire.This with conventional variable displacement power operation in contrast, in the operation of conventional variable displacement engine, certain low One group of fixed cylinder is deactivated during load operating conditions.

A problem for skipping ignition type engine control is that will to make us undesirable noise, vibration and injustice pliable (NVH) it is reduced to acceptable level.Noise caused by engine and vibration can pass to vehicle by diversified approach Occupant in compartment.It is some in these approach, such as powertrain, it can change in engine noise and vibration performance The amplification of existing a variety of different frequency components.Especially, lower gearbox gear ratio tends to amplification vibration, because of speed change Case is just increasing the change in torque at torque and wheel.Noise and vibration can also evoke a variety of different vehicle resonance, these resonance energies Enough import compartment.

Some noises and vibration frequency can especially enable vehicle occupant annoyed.Especially, low frequency, repeat patterns (for example, frequency component within the scope of 0.2 to 8Hz), which tends to generate, makes us undesirable vibration by what vehicle occupant perceived. The higher order harmonics of these patterns can result in the noise in passenger compartment.Especially, the frequency of about 40Hz can be in compartment Sympathetic response, so-called " thundering " frequency.The ignition type engine control of skipping of commericially feasible is required with acceptable level of NVH fortune Row and provided driver desired by simultaneously or required engine torque exports and reaches the increasing of significant fuel efficiency Benefit.

NVH feature changes with engine speed, spark rate and gearbox-gear.For example, it is contemplated that selection specified point The engine controller of fiery frequency, the particular ignition frequency are indicated for desired by providing in specific engines speed and gear Torque necessary to light a fire percentage.Based on the spark rate, engine controller, which generates duplicate igniting pattern, to be come to jump Cross these operating rooms that ignition type mode runs engine.As well known to a person skilled in the art, in given engine speed On degree with some engines for smoothly running of igniting patterns may be made us with other igniting pattern generations the undesirable sound or Vibrating effect.Similarly, a kind of given igniting pattern may provide acceptable NVH in an engine speed, and same figure There may be unacceptable NVH in other engine speeds for case.Engine introduce noise and vibration go back subject cylinder load or The influence of operating room's output.Provided that less air and fuel, to cylinder, the igniting of cylinder can generate less output, And less noise and vibration.As a result, if cylinder output is reduced, it is once unusable due to its inferior NVH feature Some spark rates and sequence may will be made available by.

Such as in U.S. Patent Application No. 14/638,908 (for all purposes, all the contents of the application are incorporated herein) Described in, it is generally desirably following to skip ignition type engine controller design: it is defeated to deliver required engine It minimizes fuel consumption out and acceptable NVH performance is provided.This is by being encountered during vehicle is run Large-scale service condition but a have the problem of challenge.Required engine output can be expressed as engine operation Torque request under speed.What the amount of engine torque provided by it should be understood that can be loaded by spark rate and cylinder Product represents.Therefore, if spark rate (FF) increases, cylinder torque loads (CTF) be can reduce to generate same hair Motivation torque, and vice versa.In other words,

Engine torque score (ETF)=CTF*FF (equation 1)

Wherein ETF is the value for representing engine torque that is normalized net or indicating.All values in this equation All be it is nondimensional, this allows it to be used together with the engine of all types and for all types of vehicle.Also It is to say, the combination of varied different spark rate and CTF can be used to provide same engine torque.Equation 1 is not Influence including engine friction.Friction can be included to complete similar analysis.The ginseng calculated in this case Number should be braking torque score.It is signified that engine net torque score, engine brake torque score, engine can be used The torque score shown or some similar bases measured as control algolithm.For the sake of clear, term engine torque point Number can refer to any one of these measurements of engine output and will be used in subsequent to engine controller and starting In the discussion of machine control method.

Multiple and different embodiments of the invention be related to it is a kind of can be with multiple and different output level by selected work Ignition type engine control system is skipped in room igniting.This is referred to herein as multistage and skips ignition operation.In some embodiments In, it can be by the way that above-mentioned equation 1 be modified as to skip ignition operation to multistage including the horizontal possibility of multiple igniting as follows It is modeled:

Engine torque score (ETF)=CTF₁*FF₁+CTF₂*FF₂+..+CTF_n*FF_n(etc.

Formula 2)

Wherein CTF₁It is cylinder torque score and FF under first level₁It is igniting score, CTF₂It is under the second level Cylinder torque score and FF₂It is igniting score, and CTF_nIt is the cylinder torque score under the n-th level and FF_nIt is igniting Score.The summation of multiple different igniting score is equal to total igniting score, i.e.,

FF=FF₁+FF₂+FF_n(equation 3)

In some embodiments described below, n is equal to two, but this is not limiting.

It is to be understood that there are the equivalent methods of many above-mentioned concepts of expression.For example, instead of based on engine torque point (ETF) is counted to model, modeling can be based on net engine torque (ET), because this tittle is simple proportional.Cylinder torque Score (CTF) can be, and n-th horizontal igniting score (FF proportional to net mean effective pressure (NMEP)_n) can Be with n-th of level (FED_n) operation cylinder score engine displacement it is proportional.Therefore equation 2 can be equal Ground is expressed as

ET=NMEP₁*FED₁+NMEP₂*FED₂+...+NMEP_n*FED_n(equation 4)

Above-mentioned equation 4, which is merely exemplary, to be improved and is contemplated that many equivalent improvement.They all it is common have with Engine output torque is relevant, be represented as multiple amounts summation amount, wherein each amount is that output to cylinder group is related , and there are at least two cylinder groups with different non-zero outputs.

It can the multistage described below example of skipping ignition operation.It can be by operating room in selected working cycles It deactivates in the process, exported and lighted a fire and then in next work with high level during next working cycles It is lighted a fire during circulation with lower horizontal output (for example, 0-80% of high level output).Multiple and different In implementation, low-level output, which can correspond essentially to, provides optimal fuel efficient, i.e. minimum BSFC (braking fuel Consumption rate) operating point operating room load.As is it well known, the load of the operating room BSFC changes with the variation of RPM.This Sample, in multiple and different embodiments of the invention, the ratio between the height and low ignition level can be with engine RPM And its possible dependent variable variation and change.Coordinate these igniting and deactivate, is turned round to generate desired engine Square.The availability that multistage skips ignition operation allows engine control system to have more more options to seek engine output, combustion Expect the balance between efficiency, noise and vibration.

It is to be understood that any suitable technology can be used to realize that multistage skips ignition operation.Such as in some realities It applies in example, controls operating room using throttle control, spark timing, valve timing, MAP adjustment and/or exhaust gas recirculation Torque output.In this application, various operating room's control systems and arrangement are described.Such system is arranged to make Operating room can generate multiple horizontal torque outputs.Application also describes above system can be used implement it is a variety of not Same multistage skips ignition type engine control method (for example, as combined described in Figure 16-26).However, these methods are not It is limited to system described herein and can be used for any suitable operating room's design, system or mechanism.

Operating room's valve control system

Multiple and different embodiments of the invention are related to a kind of operating room's valve control system.Initially referring to Figure 1A and 1B, Two section views of exemplary operation room valve control system 100 will be described.Operating room's valve control system 100 includes work Room 102, the operating room have piston 104, two intake valve 120a/120b and two exhaust valve 122a/122b.Actuator 116a/116b controls the opening and closing of these intake valves.Intake channel 110a/110b by intake valve 120a/120b respectively with The connection of inlet manifold (not shown).

When intake valve is opened, air is deliverrf into work by corresponding intake channel 110a/110b from the inlet manifold Make in room 102.As known to persons of ordinary skill in the art, if operating room 102 needs to be ignited, air and the work Fuel mixing in room 102, and the fuel-air mixture is ignited.The driving of piston 104 is arrived work by generated burning Make the bottom of room 102.Open these exhaust valves 122a/122b and as piston 104 is increased discharge gas from operating room It releases in 102 into exhaust channel 112a/l12b.

In many conventional designs, the intake valve 120a/120b of the operating room 102 is opened simultaneously and closed.That is, they It is controlled by same actuator and/or is opened and closed according to same lifting curve.The timing of the lifting curve can make It is adjusted with cam phaser, the time which open and close valve changes relative to Crankshaft motion.However, In multiple and different conventional designs, the mechanical devices of cam phaser generally allow for being based on recycling the valve timing one by one only There is small change and in a similar way all cylinders of operation row.However in the embodiment shown, intake valve 120a/ 120b is individually actuated and operates.From a working cycles to next working cycles, intake valve beats on and off The timing closed can be similar and different with another intake valve.For example, during selected working cycles, intake valve 120a can keep being deactivated or closing, and intake valve 120b is opened to allow air into the operating room.Alternatively, During selected working cycles, intake valve 120a can be opened and closed based on Otto cycle, and another intake valve 120b can be opened and closed based on Ai Jinsen or other circulations.During any selected working cycles, these air inlets One or both of valve can be deactivated or close.In a number of different embodiments, each intake valve of operating room 102 It can be based on being independently actuated or deactivating to ignition timing one by one.

The ability of these intake valves of the same operating room of independent control provides varied advantage.For example, may be used To dynamically adjust the torque output of the operating room.For example, in multiple and different designs, if two intake valves exist It opens during induction stroke and is then closed during subsequent compression stroke, then in selected working cycles The deactivated of one of these intake valves in the process will lead to less air and be delivered to the operating room.This so relative to this two The torque as caused by the igniting of the operating room is reduced for the situation that a intake valve is opened.Equally, in the induction stroke knot One or both of these intake valves are closed before beam will lead to that less air introduces and lower working cycles torque is defeated Out.Similarly, keep one or both of these intake valves equal during induction stroke and a part of compression stroke Opening will lead to lower working cycles output.The air being introduced into cylinder in this case starts it in power stroke It is preceding to be discharged from the cylinder.It is beaten by using the independent control of each intake valve and using the different types of of each intake valve Opening/closing timing, two, three or more level operating room output be it is possible, such as later discuss in this application 's.As previously discussed, such as based on ignition timing one by one this ability of fast modulation operating room's torque output can be with Allow preferably to control vibration, noise and fuel consumption.

Diversified mechanism can be used to control the intake valve 120a/ of operating room 102 in actuator 116a/116b The opening and closing of 120b.Such as in a number of different embodiments, each intake valve is by cam-actuated and/or mechanical Control.Such as in the embodiment shown, actuator 116a and 116b is independent operation intake valve 120a and 120b respectively Separated cam.In some designs, between stall campaign being set in the valve system, valve lifter can be collapsed, can be collapsed Gap adjuster can collapse roller and refer to follower or can collapse concentric bucket, to allow to deactivate the valve.These devices can permit air inlet Valve is activated or deactivates in any given working cycles.It in some embodiments, can also be convex using axially moving Wheel shaft carrys out control valve movement, wherein different cam protrusions can deviate to engage with air inlet valve lever.In such case Under, one of these cam protrusions can be zero promotion protruding portion, to effectively deactivate the cylinder.In some embodiments In, only single intake valve can be used, and the opening of valve can track two or more different lifting curves and base In its progress.Different cams can be used or different curves is generated by using more complicated valve system.However, answering Solution, it is a variety of different other design be also it is possible, it is such as discussed herein later.The actuating of intake valve can With mechanically, electromechanical ground, electricity carried out hydraulically or using any other suitable mechanism.

Diversified system can be used to activate and control the intake valve and exhaust valve of operating room 102.Fig. 2-7 In illustrate some exemplary designs.Fig. 2-7 is exemplary operation room valve control system (for example, being shown in Figure 1A and 1B Operating room's control system 100) diagrammatic top view.Fig. 2-7 respectively illustrates operating room 102, actuator 116a/116b, air inlet Valve 120a/120b, exhaust valve 122a and possible additional exhaust valve 122b.It is drawn between actuator and specific valve Line indicate: the actuator controls the opening and closing of the valve.Generally, between actuator and two or more valves When depicting line, it means that when the actuator is activated, these valves must whole quilt during selected working cycles Actuating；Alternatively, if the actuator is not activated during working cycles, these valves are in the working cycles It must all be deactivated in the process.If without drawing line between actuator and specific valve, it means that the actuator is not Control this specific valve.Above-mentioned actuating can be used any suitable technology or mechanism, for example by using include one or The cam assembly of multiple cams and/or camshaft executes.

It controls and arranges there may be various different valve.Such as in Fig. 2, intake valve 120a and exhaust valve 122a Positioned at the side (that is, side of line of symmetry 105) of operating room 102.Intake valve 120b and exhaust valve 122b is located at operating room 102 The other side (that is, other side of line 105).Actuator 116a controls these valves on the side of the operating room 102 (that is, air inlet Valve 120a and exhaust valve 122a), and another actuator (actuator 116b) controls these on the other side of the operating room Valve (that is, intake valve 120b and exhaust valve 122b).

Fig. 3 illustrates slightly different arrangement.In this example, each actuator 116a/116b controls the operating room Side on an intake valve and the operating room the other side on an exhaust valve.That is, actuator 116a controls air inlet Valve 120a and exhaust valve 122b, and actuator 116b controls intake valve 120b and exhaust valve 122a.

It is above to arrange that different flowings is generated in the inside of the operating room 102.For example, if actuator controls Intake valve and exhaust valve (for example, as shown in Figure 2) on the same side of the operating room, then flow to the exhaust valve from the intake valve Air tend to the centre for being not passed through the operating room or central axial line 106.If the actuator controls the difference of the operating room Intake valve and exhaust valve (for example, as shown in Figure 3) on side, then the air tendency flowed between the intake valve and exhaust valve In the centre or central axial line that pass through the operating room.This may vortex to air and multiple gases in the room or rolling make At Different Effects.Different control programs and arrangement for actuator and valve may assist in the desired amount of whirlpool of interior realization Rotation.Generally, the vortex of moderate is desirable to.It is vortexed, then the wall of the operating room may be caused too much if there is too many Thermal convection.If there is less vortex, then the burn rate in the operating room may be very low.

The control of other valves arranges to be also possible.Such as in Fig. 4, actuator 116a controls the side of the operating room 102 On an intake valve 120a and the operating room the other side on two exhaust valve 122a/122b.Another actuator 116b controls remaining intake valve (intake valve 120b).Therefore, whenever enabling actuator 116b carrys out the mistake in selected working cycles Intake valve 120b is opened in journey and it is desirable that when discharge event occurs, it is also necessary to enable actuator 116a.In other words, whenever When wishing to occur discharge event in selected working cycles, it is necessary to enable actuator 116a and the process in the working cycles It is middle to open intake valve 120a and the two discharges 122a and 122b.Exhaust can be helped improve by opening the two exhaust valves, That is, discharge gas just is discharged from the operating room (i.e. before induction stroke starts) before the piston reaches top of dead center.

Fig. 5 illustrates another valve control system.In this example, actuator 116a controls the side of the operating room 102 On an intake valve 120a and the two exhaust valves 122a and 122b.Another actuator 116b has similar function Can, i.e., it controls the intake valve 120b on the other side of the operating room there are also the two exhaust valves 122a and 122b.This arrangement Also cause the two exhaust valves 122a/122b it is desirable that occur exhaust events selected working cycles during and/or whenever One of these intake valves 120a/120b is activated when being activated during selected working cycles.If actuator 116a or 116b is activated, then these exhaust valves 122a and 122b will be activated.However, compared with Fig. 4, when it is desirable that combustion incident occurs When, intake valve 120b can be opened during selected working cycles, without opening intake valve 120a.

Although above example is related to band there are two the operating room of intake valve and two exhaust valves, this is not required, and And the operating room may include any appropriate number of intake valve and exhaust valve.For example, Fig. 6 illustrate band there are two into The operating room 102 of air valve 120a/120b and single exhaust valve 122a.Actuator 116a is controlled on the side of the operating room Intake valve 120a and control exhaust valve 122a.Actuator 116b controls the intake valve 120b on the other side of the operating room 102 And control exhaust valve 116b.Therefore during selected working cycles, if it is desired to if discharge event occurs, no matter Which intake valve is opened, and exhaust valve 122a is opened.

Fig. 7 describes different control programs, the control program be also related to band there are two intake valve 120a/120b and The operating room 102 of single exhaust valve 122a.In this exemplary arrangement, actuator 116a controls the side of the operating room 102 On intake valve 120a and control exhaust valve 122a.Actuator 116b controls the air inlet on the other side of the operating room Valve 120b.Compared with control system demonstrated in Figure 6, actuator 116b does not control exhaust valve 122b yet.Therefore, if Wish that exhaust events occur during selected working cycles, then must enable actuator 116a and be switched on intake valve 120a.That is, during occurring to burn and discharge the selected working cycles of event in the operating room 102, intake valve 120b It will not be the unique intake valve being activated but be activated together with intake valve 120a always.However, in selected working cycles During intake valve 120a and exhaust valve 122a can open, while intake valve 120b keep deactivate.

Fig. 8 and 9 describes another type of control program, which is related to can change holding for intake valve opening The actuator of continuous time and timing.In other words, in some examples in the above example, actuator can only realize two kinds of shapes State-deactivates corresponding intake valve or enables corresponding intake valve.If intake valve is activated, the timing of the opening of the intake valve It is fixed during selected working cycles with the duration.However, in other embodiments, which has additional Function.That is, the actuator can be realized following multiple cam contours or valve promotes setting, each of they have difference Valve timing feature.

The example of this approach is illustrated in figs. 8 and 9.Fig. 8 and 9 is related to single intake valve 120a, exhaust valve The operating room 102 (Fig. 9) of 122a and actuator 116a.As seen in Figure 9, actuator 116a is controlled in the operating room 102 All valves.In order to change the output of the operating room, actuator 116a is arranged to for promoting adjustment setting or cam based on valve Profile is promoted selectively to adjust the valve of intake valve 120a.

Fig. 8 is to indicate valve promotion with the curve graph 800 of time change.Curve 802 and 804 represents two valves and is promoted Adjustment setting.Actuator 116a is arranged to operate the air inlet for promoting any of adjustment setting based on these valves Valve 120a.In a number of different embodiments, actuator 116a can be based on becoming between multiple settings to working cycles one by one It changes.Curve 800 indicates the duration of intake valve 120a opening and how degree occurs from a setting to next setting Variation.That is, intake valve 120a is opened during selected working cycles for the setting representated by the curve 804 Maximal valve lifting capacity and time quantum are greater than the setting as representated by curve 802.Therefore, different settings causes different amounts of Air is delivered to operating room 102, and which results in the outputs of the torque of the different level of operating room 102.Any conjunction can be used Suitable technology or valve adjustment mechanism promotes the implementation that adjustment is arranged to execute different valves.

As indicated above, can be used in the above valve control system some helps to control the indoor gas of the work The rolling of body and/or vortex.The control to the indoor gas stream that works can further be improved by the design of specific intake channel System.Multiple and different examples of such design are illustrated in Figure 10 and 11.

For comparative purposes, Figure 10 is the intake channel 1006a/ of operating room 1002 and its associated conventional design The top view of 1006b.This two intake channel 1006a/1006b are respectively by two intake valves of the operating room 102 and air inlet discrimination Pipe 1014 is connected.In this example, separated intake channel 1006a/1006b is by using single intake channel 1004 Shared channel wall 1112 is demarcated and is formed.It should be noted that every intake channel central axial line (axis 1008a and Do not intersect with the central axial line 1010 of the operating room 1008b).(central axial line 1010 is construed as rising from the page Line)

Figure 11 illustrates another intake channel design according to a particular embodiment of the present invention.In Figure 11, two air inlets are logical Road 1106a/1106b inlet manifold 1114 and operating room 1102 are connected and respectively in the operating room 1102 it is independent into Air valve is connected.These intake channels 1106a/1106b is in splayed, i.e., they are not parallel to extend each other and are with one Determine angle to be connected with the operating room 1102.In the embodiment shown, the intake channel for an operating room 1102 1106b shares inlet air flow path with the intake channel 1122 for operated adjacent room 1120, but in other embodiments, Intake channel for operated adjacent room is distinct.

Every intake channel 1106a/1106b institute's angle degree that is connected with operating room 1102 causes every intake channel The central axial line 1108a/1108b (substantially) of 1106a/1106b intersects with the central axial line 1110 of operating room 1102.Due to This design, the air delivered using these intake channels 1106a/1106b are directly delivered to the center of the operating room, Thus relative in Figure 10 arrange for may reduce vortex or mixed amount.Such arrangement is (optionally and in Fig. 1-7 The valve system shown is combined) control to the gas motion in the operating room 1102 can be helped improve.

Additional adjustment can be made to the design of the operating room further to control air and to enter in the operating room Delivering and/or the flowing of the gas in the operating room.In some embodiments, for example, the intake valve of operating room is (for example, Figure 1A There is different size and/or diameter with the intake valve 120a/120b of 1B).That is, their shape, size or design cause to wear The air velocity for crossing these valves is different.Air, which is asymmetrically delivered in operating room, may assist in the operating room Cause to be vortexed, what this may be desirable in some cases.

When intake valve when operating room is independently controlled (for example, as described in Fig. 1-7), they can also be followed Different valve lifting curves and/or the time is opened/closed with different.These curves and valve, which open/close the time, to be mixed Merging and the matching that is consistent as desired with available valve control device.For example, an intake valve can be activated to realize The lifting curve for opening valve in entire induction stroke and closing soon after the bdc.This lifting curve allows to introduce Maximum air inlet amount and common timing and lifting curve can be referred to as.Another intake valve is actuated to realize air inlet Valve closes (EIVC) or intake valve late release (LIVC) curve in advance.Both EIVC and LIVC curve and timing cause with it is general Logical lifting curve is introduced compared to reduced air.It will lead to engine with lifting curve using common timing to transport with Otto cycle Row, i.e., wherein valve timing generates substantially maximum air inlet amount.Less air will be generated using the timing of EIVC or LIVC valve Air inflow and therefore lead to lower effective compression ratio.This commonly known as uses Ai Jinsen or Miller (Miller) to recycle To run engine.It may assist in operating room's output, vibration, noise and fuel using different lifting curves and timing Additional control is provided in efficiency.

Be related to using about the specific lifting curve of one or more intake valves and/or valve timing to generate specified torque Horizontal specified scheme is referred to herein as valve control program.Accordingly, it is possible to which there are multiple and different to be used for from the work being ignited Room generates the valve control program of corresponding different level (for example, low, moderate and/or high) torque.Each valve control program is related to Each intake valve in the independent control operating room, so that each intake valve is recycled using specific lifting curve and/or timing (for example, Otto, Ai Jinsen etc.) is operated.Multiple intake valves that particular valve control program may cause to operating room are using same One or different lifting curve and/or timing circulation operate.

Referring now to Figure 12 A-12E, describe some between such valve control system and the valve control system of routine Difference.For comparative purposes, Figure 12 A illustrates air inlet that operating room is recycled in exemplary Otto (Otto) and compression stroke Multiple and different operation phase in the process, the circulation use in many automobile engines at present.The operating room includes two Intake valve (intake valve 1202a and 1202b), the two intake valves are all based on common timing and lifting curve with identical side Formula is run come what is operated so as to cause engine with Otto cycle.

During the induction stroke, the two valves 1202a/1202b is opened.Piston 1206 is from top dead centre (TDC) It is moved to lower dead center (BDC).Substantially 40 ° before the piston 1206 reaches BDC, which, which is promoted, reaches its maximum point.Once should Piston 1206 reaches BDC, and compression stroke is begun to.The piston is then returned towards top dead centre (TDC) is mobile.After BDC substantially 40 °, these intake valves are turned off.

In Ai Jinsen circulation, these intake valves can be advanced or delayed closing.The former is referred to as intake valve and closes in advance Close (EIVC).The example of EIVC valve operation is illustrated in Figure 12 B.In Figure 12 B, the two intake valves 1202a/1202b is root It recycles to operate according to EIVC Ai Jinsen.Intake valve 1202a/1202b piston 1206 at the end of induction stroke reaches BDC When be closed.This is more much earlier than the Otto cycle shown in Figure 12 A, in the cycle the 40 ° of closings of these intake valves evening. Therefore, compared with Otto cycle, these intake valves are closed early and stay open the shorter period, thus in the work Make to generate less air in room and generates lower torque output.

Figure 12 C illustrates alternative Ai Jinsen circulation, and two intake valves are followed relative to the Otto of standard in the cycle Closing is delayed by for ring.This approach is referred to as intake valve late release (LIVC).Exemplary L IVC is illustrated in Figure 12 C Valve control system.As shown, in the centre of the compression stroke, substantially 90 ° after the bdc of these intake valves 1202a/1202b It closes.In contrast, in exemplary Otto cycle, the 40 ° of closings after the bdc of these intake valves.This leads to relatively minor amount Air be delivered to the operating room because the more air for being delivered to the operating room during charging stage exists The operating room is pushed out during the compression stroke.

Due to being delivered to the air of the operating room for Otto cycle from the inlet manifold in Ai Jinsen is recycled Reduce, so being exported by the torque generated that the operating room lights a fire less.However, Ai Jinsen circulation generally compares Otto Circulation has more fuel efficiency, because the burning capacity of major part can be converted to useful torque.With Ai Jinsen circular flow Operating room can make the operating room run at its minimum BSFC operating point or near it.

In the example shown in figure 12 above A-12C, based on same circulation while two intake valves are enabled.Figure 12D-12E contemplates a variety of implementations, in these implementations, opens and closes multiple independences based on different circulations The intake valve of control.In these embodiments these described intake valves can be used any one of above-mentioned technology (such as In conjunction with described in Figure 1A, 1B and 2-11) it controls or activates.

In fig. 12d, it is recycled using EIVC Ai Jinsen to operate intake valve 1202b.Air inlet is operated using Otto cycle Valve 1202a.Therefore, as shown, when piston 1206 is in compression stroke early stage, intake valve 1202a is after the bdc substantially 40 ° of closings.However, intake valve 1202b earlier, is i.e. probably closed at the end of induction stroke when piston is in BDC.

It is to be operated using Otto cycle and intake valve 1202b is using LIVC that Figure 12 E, which illustrates intake valve 1202a, The system that Ai Jinsen recycles to operate.Therefore during compression stroke, intake valve 1202b is closed later than intake valve 1202a Close, i.e., at substantially 90 ° after the bdc rather than about 40 ° after the bdc.

Intake valve is operated using different circulations provides various potential advantages.For example, it is provided Control another means of the indoor flowing of work.For example, in fig. 12d, air asymmetrically enters operating room 1206 In.That is, during the charging stage, when more than another intake valve across the air of an intake valve (intake valve 1202a) Between it is longer.This may run the gas in the operating room and cause desired influence, such as may cause the vortex of increase. In fig. 12e, during compression stroke, the air released from an intake valve (for example, intake valve 1202b) is than another The intake valve more time is longer.This asymmetry air stream can advantageously increase burning charge movement (that is, being vortexed and turning over Rolling), so as to improve combustion characteristic.

In some approach, these intake valves are to deviate, i.e., they are relative to each other stage by stage.In Figure 12 F Illustrate the example of this approach.Intake valve 1202a and 1202b is operated based on same Otto cycle but is opened and closed Time is to deviate.That is, intake valve 1202a is opened earlier than intake valve 1202b and is closed earlier.This system is basic It is upper to work similar to the system shown in Figure 12 E.Air leaves the operating room in a manner of asymmetric, this may be influenced Vortex in the operating room.Bias can be widely varied according to the needs of specific application.

The additional advantage for the multiple intake valves for coming independent operation operating room using different circulations is can to depend on such as What operates these valves to provide the high level control of the torque output to the operating room.Referring next to Figure 13 A and 13B, description Multiple and different example valve control program.That is, the chart shown in Figure 13 A and 13B is indicated how with different Mode operates intake valve to generate the torque of different level.In some embodiments, the valve control shown in Figure 13 A and 13B Scheme processed has used the system shown in Figure 12 D and 12E respectively.

Figure 13 A describes a kind of operating room's valve control system, for example logical there are two in operating room's valve control system It crosses different actuators or cam carrys out the intake valve of independent control.The valve control system can have in conjunction with Fig. 2-7 and/or Figure 12 D The arbitrary characteristics of described system.During selected working cycles, intake valve 1202a can be followed by using Otto Ring is deactivated or activates (hereinafter referred to as " common valve ").During the selected working cycles, intake valve 1202b also can It is enough to be deactivated or activate (hereinafter referred to as " EIVC valve ") by using Ai Jinsen (EIVC) circulation.Therefore, to the common valve and EIVC valve, four different valve control programs be it is possible, this will generate four kinds of different results 1302/1304/1306/ 1308, these results are shown in the chart 1300 of Figure 13 A.

In result 1302,1304 and 1306, operating room is ignited during selected working cycles and by being somebody's turn to do The torque output level lighted a fire and generated depends on the valve control program.Result 1302 in the chart indicates, if this two A intake valve is activated, then the output of highest operating room torque may be implemented.This also creates the vortex of some moderate amount.If EIVC valve is deactivated and the common valve is activated, then can produce time high-caliber operating room's output (result 1306).When this When EIVC valve is activated and the common valve is deactivated, the operating room for generating next highest level is exported (that is, comparing result 1302 and 1306 lower outputs) (result 1304).This is because EIVC operation limits the air for being delivered to the operating room Amount.In result 1304 and 1306, the vortex (that is, higher than in result 1302) of higher amount can produce, because enabling Only one valve promotes the flowing and mixing of the gas in the operating room.Furthermore it is possible to the two intake valves are deactivated, this meaning Do not occur during selected working cycles burn and do not generate torque output, such as by result in the chart of Figure 13 A 1308 instructions.

Figure 13 B includes the chart 1350 of similar structures, but in this drawing, intake valve 1202b can be by using Chinese mugwort Jin Sen (LIVC) recycles (hereinafter referred to as LIVC valve) to deactivate or operate.Valve 1202a can be based on Otto cycle (hereafter Referred to as common valve) it deactivates or operates.Therefore, for selected working cycles, the different valve control program of following four is same Sample is possible: 1) LIVC valve is activated, common valve is activated, combustion incident occurs；2) LIVC valve be deactivated, common valve quilt Combustion incident occurs for actuating；3) LIVC valve is activated, common valve is deactivated, combustion incident occurs；4) LIVC valve is deactivated, is general Port valve is deactivated, combustion incident does not occur.The result of each valve control program is shown in Figure 13 B.For implementing Figure 13 B's The valve control system of any one of valve control program can have appointing for the system in conjunction with described in Fig. 2-7 and/or Figure 12 E Meaning feature.

These results shown in chart 1350 in the chart 1300 of Figure 13 A these are quite different.It is specific and Speech realizes highest operating room torque output (result 1356) when common valve is activated and LIVC valve is deactivated.If this Two valves are activated, then realize lower, moderate level operating room's output (result 1352).This is because at the two When valve is activated, due to late release of LIVC valve during compression stroke, it is passed through some skies of the two valves Gas is pushed out the operating room.If common valve is deactivated and LIVC valve is activated, the output of low-level operating room is also achieved (that is, being less than the output in result 1352) (result 1354).In result 1358, two intake valves are deactivated and not Generate torque output.

As previously discussed, as a result 1354 and 1356 it is related to the vortex than 1352 higher amount of result, this is because air Asymmetrically it is delivered to operating room.In addition, LIVC valve and the common valve can also all be deactivated (result 1358), that is, skip The operating room.

The chart shown in Figure 13 A and 13B indicates, using the intake valve of independent control and for different valves Allow to obtain the flexibility increased in the operation of the operating room using different circulations.That is, the operating room can be realized three Or the torque output of four different levels.In addition, the operating room can selectively to single valve using Ai Jinsen recycle so as to To have more fuel effect compared with some other technologies (for example, being exported by adjusting spark timing, air throttle etc. to reduce torque) The mode of rate generates the torque output of reduced levels.

It is to be understood that not needing all working room valve control system all having the same in engine.But it can Operating room is divided into two or more different groups, these groups respectively have different abilities.For example, one Or multiple operating rooms can only can be realized both of which (that is, deactivate or light a fire when activating all intake valves) or only one Kind mode (that is, igniting is without being skipped in each engine cycles).However, other operating rooms can have above The intake valve of multiple independent controls in conjunction with described in Fig. 1-13.The operating room of such mixing group relative to conventional engine and Speech still allows greater flexibility and control and can realize multistage torque output relative to each operating room therein Engine for help to reduce hardware cost and complexity.

Figure 14 A-14H describes various different exemplary operation room and arranges.Each figure in these figures includes tool There are multiple cells and the chart about motivation level and the index of number of cylinders.Each chart is indicated in exemplary four cylinder The different dynamic that each cylinder (being identified with number 1-4) can be realized in engine is horizontal (that is, torque output level).That is, such as Fruit cylinder has cell associated with motivation level 1 is filled in, then this means that the cylinder can be ignited to generate height Torque output (for example, CTF=1.0 or 100% is maximum to allow output).If cylinder has and fills in 2 phase of motivation level Associated cell, the then this means that cylinder can be ignited to generate the output of low or part torque (for example, CTF=0.7 Or 70% maximum allow output).If cylinder has cell associated with motivation level 3 is filled in, this meaning The cylinder can be deactivated (therefore do not generate during selected working cycles torque output).

In the embodiment shown, only three motivation levels are obtainable, however these vapour in other embodiments At least some of cylinder can generate more than three motivation levels, such as shown in Figure 13 A-13B.In Figure 14 A-14H Each chart is indicated with operating room/valve system different arrangement of different abilities and combination.Described in these charts These cylinders are arranged to using described herein (for example, being discussed in conjunction with Fig. 1-13) valve control system, operation Different motivation levels is generated with any one of feature.

Each chart is also associated with fuel efficiency values.Each fuel efficiency values are the simulations carried out based on inventor.This A value is indicated to be had relative to conventional four cylinder engine (for example, without any ability for capableing of cylinder deactivation) configuration The fuel efficiency gain of some estimations.It is to be understood that associated with each of these charts in Figure 14 A-14H Fuel efficiency values are preliminary, are based on experiment simulation and may variation for different engine designs and application 's.

For comparative purposes, Figure 14 A is the chart for indicating following cylinder configuration, and all cylinders are only in the cylinder configuration It can be realized two motivation levels, i.e., each cylinder can be skipped or light a fire to generate the output of the torque of single level.It can To use such configuration in skipping ignition type engine control system.In this type of design, the process in office once lighted a fire In, two intake valves are activated.Pass through the cam phaser and all cylinders of control of the opening and closing time of control valve The adjustable air inlet amount associated with igniting of the air throttle of MAP.These control systems do not allow the operating room to isolation Output carry out big quick adjustment.It is usually uncommon although the output of operating room can be reduced by delay spark timing What is hoped is to avoid this control method, because it is low fuel efficiency.Cylinder configuration shown in Figure 14 A has moderate Fuel efficiency, because igniting facilitates the pumping loss reduced in operating room and in some cases may be used under such conditions With approaching optimal fuel efficient by cylinder firings.

Figure 14 B illustrates the configuration of the conventional engine with cylinder deactivation.Two cylinders are in each cycle of engine It is ignited, cannot be deactivated in the process.During selected working cycles, two other cylinders can be ignited to produce The torque of raw single level is exported or is deactivated.Since such engine cannot skip each cylinder, so its fuel is imitated Rate may be slightly less than the configuration shown in Figure 14 A.However, relative to for all cylinders (for example, as shown in Figure 14 A) Single-stage skip ignition type engine design for, it may be required that less hardware supports such system.

Figure 14 C describes following configuration, and in the configuration, each cylinder can be realized three output level: be deactivated It (being exported without torque) and is lighted a fire with other two different motivation level.Such configuration can be by using the application Described in valve control system (such as independent control is recycled etc. for the intake valve of each cylinder, based on Otto and Ai Jinsen Operating intake valve) any one of realize.Such approach can provide the significant gain of fuel efficiency.However, may be used also Each cylinder can be required to have additional hardware and valve control correlated characteristic.

Figure 14 D represents simpler approach, and it is dynamic to can be realized three marked in Figure 14 C for two cylinders in the approach Power is horizontal.However, other two cylinder be can not deactivate and during each cycle of engine with single power water Flat spot fire.Accordingly, with respect to the conventional non-cylinder skipped in ignition type engine, cylinder 2 and 3 may require it is few or Additional hardware is not required.

In some embodiments, the cylinder 1-4 marked in Figure 14 D is arranged in maximum efficiency using in the engine Space.The example of such arrangement is shown in Figure 15.Figure 15 is the top of one group or an exhaust casing 1-4 in engine 1500 View.Cylinder 1 and 4 is positioned at the both ends of this group, and cylinder 2 and 3 is located at the centre of this exhaust casing.

Figure 15 illustrates following instance, can be realized more output level/can be realized deactivated cylinder in this example It is positioned at the both ends of one group of cylinder, and is positioned in less output level and/or the cylinder that cannot be deactivated Between.This allows additional hardware to be more easily attached on the cylinder at the both ends of this group；With this of less hardware requirement A little cylinders are positioned in the centre of this group, there is less space and each cylinder herein in either side by another Cylinder defines.The embodiment shown includes four cylinders, it is to be understood that similar arrangement can be used for having Group/row (for example, there are three tools, the row of five or more cylinders) of more or fewer cylinders.In other words, multiple In different implementations, outermost cylinder (such as one or more cylinders at the both ends of this row or near it) can be real Now more multiple output level, and internal cylinder closer to the centre of this row and/or in two sides by other cylinders (for example, surround One or more cylinders) have less a output level.With two or more inblock cylinders/group engine in, often A cylinder group/row can have arrangement same as shown in Figure 15.

The configuration that Figure 14 E is represented is the modification of shown configuration in Figure 14 D and/or Figure 15.In Figure 14 E as With in Figure 14 D, cylinder 1 and 4 can be realized three output level.However, cylinder 2 and 3 can be realized two output level (that is, they can be skipped or with the igniting of single torque output level).The configuration shown in Figure 14 E can also be pacified It lines up as shown in figure 15, because most inner casing (cylinder 2 and 3) may require less hardware than outermost cylinder (cylinder 1 and 4) And there is less associated output level.

In Figure 14 F, there are two output level for each cylinder tool, but the type of output level can be different.At this In illustrative configuration, there are two output level-, they can be ignited to generate single torque output level simultaneously the tool of cylinder 1 and 4 And it can also be deactivated during selected working cycles.Cylinder 2 and 3 cannot be deactivated but can be with two different output water Flat spot fire.The configuration of three or more output level can be generated relative to each cylinder therein, institute's exhibition in Figure 14 F The configuration shown may require less hardware.Preliminary test further indicates, and such configuration even skips ignition type hair with single-stage Motivation system (as shown in Figure 14 A), which is compared, can be quite with fuel efficiency.

Figure 14 G illustrates following configuration, and there are three two cylinders (cylinder 1 and 4) tools in the configuration in these cylinders Output level (that is, being deactivated and with two different torque output level igniting).Another two cylinder (cylinder 2 and 3) cannot It is deactivated but can be ignited to generate two different torque output level.Configuration described in Figure 14 G can also be by It is arranged to as shown in figure 15.That is, with more multiple output level cylinder 1 and 4 be placed in the inblock cylinder/group both ends at, and Cylinder (cylinder 2 and 3) with less a output level be positioned in the row/group centre or interior section in.The institute as before It discusses, in a number of different embodiments, cylinder 1 and 4 requires more hardware to support additional output level, and should Inblock cylinder/group outer end provide more spaces for such hardware to install.

Figure 14 H represents the variant that wherein all cylinders all cannot be deactivated or skip.However, each cylinder can It is ignited to generate two different torque output level.In multiple and different implementations, this configuration is relative to routine Skip and can have lesser NVH for ignition type engine control system and can be realized relative to cylinder therein It may require less hardware for the system of more output level.

Any one of valve control system described herein may serve to implement to be shown in Figure 14 A-14H Embodiment.That is, the multiple and different embodiments shown in Figure 14 A-14H are related to one or more cylinders, these cylinders can The output of the torque of multiple levels is generated to be deactivated and/or be ignited.Such multilevel torque output can be with a variety of more The mode of sample is realized.For example, in some embodiments, each cylinder includes two intake valves, wherein each intake valve is not by With actuator (for example, as described in Fig. 2-7) control.In order to generate high torque output, in selected working cycles In the process, the two intake valves are passed air through.In order to generate low torque output, during selected working cycles, make sky Gas passes through only one intake valve or is released air from the cylinder by LIVC valve.As shown in Fig. 2-7, one Or the control of multiple exhaust valves can be completed by one or more actuators.In some approach, which is configured to have There is single intake valve, valve promotion is adjustable in the valve, which is ignited to generate multiple and different torsions Square output level (for example, as in conjunction with discussing Fig. 8 and 9).The configuration shown in Figure 14 A-14H can also be with upper It states and is used in the engine system of any one of valve access arrangement (for example, as combined described in Figure 10 and 11).Some In design, each cylinder that can be realized multilevel torque output operates different intake valve (examples using different circulations Such as, as in conjunction with discussing Figure 12 A-12E and 13A-13B).I.e., it is possible to described in chart using Figure 13 A and 13B Technology is (for example, actuating EIVC/LIVC valve and common valve produce to generate specified torque output and deactivate one of these valves Raw different the second torque output, etc.) it is defeated to generate the torque of the different level described in the chart of Figure 14 A-14H Out.

Multistage skips ignition type engine control system

Multiple and different embodiments of the invention are related to a kind of multistage and skip ignition type engine control system.This starts One or more operating rooms of machine can be ignited to generate the output of the non-zero torque of at least two different levels.It can be based on Operating room's output torque is controlled to ignition timing one by one.It can be based on ignition timing one by one by by cylinder firings or jump Come over to control total engine torque output.Based on desired engine torque, the engine control system determine for The mode for skipping igniting runs the igniting sequence of the engine.The sequence, which indicates, a series of to be skipped and lights a fire.For each point Fire, which, which indicates, is associated horizontal torque output.The operating room of the engine runs to pass based on the igniting sequence Send desired torque.It is such skip ignition type igniting sequence be referred to herein as multistage skip ignition type igniting sequence.

The embodiment that described multistage skips ignition type engine control system can be used for described herein Any one of engine, operating room, intake channel and valve control system.Such as in a number of different embodiments, this is System generates igniting sequence, which is related to that one or more operating rooms lighting a fire with multiple torque output level.These works Make room respectively can by using the intake valve and/or exhaust valve of independent control, by according to different circulation (such as Otto And Ai Jinsen) running the intake valve of same operating room, and/or any other feature or technology in conjunction with described in attached drawing and Generate such high or low torque output.It should, however, be understood that described multistage skips ignition type engine control system System is not limited to such system and operation, and they can be applied to generate any of operating room's output of multiple levels Engine or operating room's design.It is particularly suitable for making the control system that igniting determines based on ignition timing one by one, still It is not limited to such control system.

Referring next to Figure 16, particular embodiments of the inventions herein is described to multistage and skips ignition type engine control Device 1630.The engine controller 1630 includes igniting interpolater 1602, ignition timing determining module 1606, point fire control Unit 1610, powertrain parameter adjustment module 1608 and engine diagnostic module 1650 processed.Engine controller 1630 It is arranged to run the engine in a manner of ignition type to skip.

Engine controller 1630 receives the input signal 1614 and a variety of differences for representing desired engine output Vehicle operating parameters, such as engine speed 1632 and gearbox-gear 1634.Input signal 1614 can be as to wishing The engine of prestige exports or the requirement of torque is handled.Signal 1614 can be received from or be originated from accelerator pedal position and passes Sensor (APP) or other suitable sources, such as cruise control system, torque calculation machine, etc..Optional preprocessor Accelerator pedal signal can be changed before being supplied to engine controller 1630.It is to be understood, however, that in other embodiment party In formula, accelerator pedal position sensor can be with 1630 direct communication of engine controller.

Igniting interpolater 1602 receives input signal 1614 (and when there are other suitable sources) and starts Machine speed 1632 and it is arranged to will to be suitable for delivering for determination the desired igniting score exported.Multiple and different Embodiment in, which is instruction or represents the ratio between igniting number and ignition timing number (that is, igniting number plus skip number) Any data.

In some implementations, which initially generates effectively igniting score.It is multiple not In same embodiment, effectively igniting score (EFF) is that igniting score is normalized with the weighted average for ignition event with reference to vapour The product of cylinder air inflow.(score (different from igniting score) of correspondingly, in such embodiments, effectively lighting a fire may not have Explicitly indicate that out igniting the ratio between number and ignition timing number).In a number of different embodiments, the normalization with reference to cylinder into Tolerance or cylinder torque score have at least two potential different nonzero values, the two values are individually related to cylinder group Connection.Mathematically, engine torque score (ETF) can be expressed as about effective igniting score (EFF)

ETF=EFF*CTF^act _H(equation 5a)

Wherein CTF^act _HIt is practical air inflow in highest air inflow horizontal cylinder group.Horizontal there are two air inflow to tool For system, high-level torque air inflow can be referred to as completely air inflow, and low-level torque air inflow can be referred to as portion Divide air inflow.In multiple and different example described above in this application, by operating room being lighted a fire and the torque of generation The feature of amount is cylinder torque score (CTF), which gives operating room's output phase for the finger of reference value Show.For example, these CTF values can be relative under referenmce atomsphere pressure and temperature, that is, 100kPa and 0 DEG C and appropriate Air valve and spark timing under operating room to open the output torque of maximum possible that big air throttle generates.Of course, it is possible to Use other ranges and reference value.In this application, CTF is generally the value between 0 and 1.0, although it can be one It is greater than 1.0 under a little situations, such as in low atmospheric temperature and/or operates in b.s.l. or in engine with supercharger.To this Shen Please described in some embodiments for, full air inflow is related to 1.0 CTF value, and partial-air admission amount is related to 0.7 CTF Value.For clarity, these values will be used in the following description of the present invention, it should be appreciated that these values will depend on The design of exact engine and engine operational conditions and change.It is to be understood that the practical CTF that is delivered of operating room can be with It is adjusted according to these parameter values.

In some embodiments, which is arranged to for determining horizontal igniting score and vapour Cylinder torque level (for example, as equation 2 seen in), the one or more combinations exported desired by delivering will be suitable for.This A little combinations can also be expressed as score (EFF) 1611 of effectively lighting a fire.In some designs, engine torque score (ETF) can be with It is expressed as the product of EFF Yu Dynamic gene α:

ETF=EFF*CTF^act _H=EFF*CTF^R _H* α (equation 5b)

Wherein CTF^R _HIt is associated with the cylinder group with highest cylinder air inlet amount with reference to cylinder torque score.As above Described in text, CTF in the description provided here^R _HIt is assumed to be 1, but this is not required.Dynamic gene α is depended on Engine parameter is arranged (such as spark timing and air throttle and cam phaser position) and changes.

The igniting interpolater 1602 can depend on the needs of concrete application and generate in a wide variety of ways Igniting score.Such as in some implementations, effectively igniting score be selected from effective igniting point bank for limiting in advance and/ Or look-up table.Multiple and different implementations is related to using look-up table, engine parameter is (for example, shelves based on one or more Position, engine speed etc.), fuel consumption, maximum permissible CTF, and/or NVH associated with each effective igniting score Determine effectively igniting score.These and other approach is more fully hereinafter described.

Once calculator 1602 has determined that effectively igniting score, the score are communicated to ignition timing determining module 1606.Based on the received effective igniting score of institute, which is arranged to issue a series of igniting lives It enables, these ignition orders make engine deliver the igniting number of the percentage and deliver required igniting output torque level To generate desired engine output.With various modes, for example using sigma delta converter or it can lead to It crosses using one or more look-up tables or use state machine and generates this sequence.Ignition timing determining module 1606 exports This series of firing command (sometimes referred to as drive pulse signal 1616) be delivered to ignition control unit 1610, the point Fiery control unit commands actual ignition by guiding the ignition signal 1619 to these engine operation rooms 1612.

This serial ignition order issued by the ignition timing determining module 1606 indicate skip and light a fire and with point The combination of the associated torque level of fire.In a number of different embodiments, for each igniting, which is indicated specifically Torque output level, the torque output level be selected from two or more possible torque output level.The sequence can adopt Take any suitable form.Such as in some embodiments, which be made of multiple values such as 0,0,0.7,1.This Example indicates, and during next four ignition timings, associated operating room should be to skip, skips, light a fire (being exported with the operating room of reduced levels, such as 70% etc. exported with reference to cylinder torque) and igniting are (with high-caliber work Room output, such as with reference to 100% etc. of the output of cylinder torque).Indicate skipping for operating room's output with multiple levels Multistage, which is referred to herein as, with the igniting sequence of igniting skips ignition type igniting sequence.

The ignition timing determining module 1606 can determine igniting decision or igniting sequence in a wide variety of ways. Such as in multiple and different implementations, which searches for one or more look-up tables to determine Multiple horizontal igniting sequences.Multiple horizontal igniting sequences appropriate can be arranged to for maximizing fuel economy, together The acceptable NVH feature of Shi Shixian.Influence NVH factor may include transmission gear, engine speed, cylinder air inlet amount and/ Or other engine parameters.Based on one in effective igniting score, fuel economy, NVH Consideration and/or above-mentioned factor A or multiple, module 1606 selects multilevel igniting sequence from multiple igniting sequence options.In other implementations, mould Block 1606 determines suitable igniting sequence using sigma delta converter or algorithm.Any suitable calculation can be used Method or method will deliver the igniting sequence of desired engine torque to generate.It describes below in conjunction with Figure 17-22 for determining The multiple technologies of the igniting sequence.

In the embodiment shown in the Figure 16 shown, provides and moved with what ignition timing determining module 1606 was cooperated Power Train Parameters adjust module 1608.Powertrain parameter adjustment module 1608 guides these engine operation rooms 1612 Set selected powertrain parameter suitably to ensure that it is defeated that real engine output is substantially equal to required engine Out.For example, in some conditions, in order to deliver desired engine torque, it is necessary to adjust operating room and light a fire every time and generate Output.Powertrain parameter adjustment module 1608 is responsible for any suitable engine of setting and is set (for example, aeration quantity, spark Timing, cam timing, Air Valve Control, exhaust gas recirculation, air throttle, etc.) so as to assist in ensuring that real engine export The required engine output of matching.Therefore the engine output be not limited to only under multiple discrete levels operation but It can be adjusted in a manner of continuously simulating by adjusting engine setting in multiple and different implementations.In number On, in some approach, this can be expressed as including multiplication factor in the output of each cylinder group.Therefore it can repair Change equation 2 and is combined with equation 5, so that

ETF=α * CTF^R _H* EFF=α₁*CTF^R ₁*FF₁+α₂*CTF^R ₂*FF₂+...+α_n* CTF^R _n*FF_n(equation 6)

Wherein α₁、α₂And α_nThe Dynamic gene in cylinder load associated with each cylinder group is represented, and CTF^R ₁、CTF^R ₂And CTF^R _nRepresent the reference cylinder torque score of each cylinder group.It is to be understood that some engine settings Adjustment of (such as throttle position) influence to all cylinder groups, and some settings (such as spark timing and/or injection fuel Quality) ground can be organized one by one or is even adjusted to cylinder one by one.In multiple and different implementations, each different cylinder Group will be with different spark timings and injection fuel mass.Adjustable every group of spark timing for the group to provide Optimal fuel efficient, and adjustable injection fuel mass is to all groups of acquisitions substantially chemically correct fuel.In this feelings Under condition, injection fuel quantity will be generally proportionate with generated cylinder torque.

The engine controller 1630 further includes engine diagnostic module 1650.The engine diagnostic module 1630 is pacified It lines up for detecting any engine problem in the engine (for example, pinking, loss of ignition etc.).Can be used it is any Technology, sensor or the detection process known detects these problems.In a number of different embodiments, if detecting problem, The engine diagnostic module 1650 just order the ignition control unit 1610 execute it is multiple operation go out to reduce the problem in the future A possibility that existing.In a number of different embodiments, it generates multistage and skips ignition type igniting sequence to solve the potential problems. The multiple examples that can be executed by engine diagnostic unit 1650 are for example described in conjunction with Figure 24 and 26 in this application later Property operation.

It is to be understood that engine controller 1630 is not limited to ad hoc arrangement shown in Figure 16.It can be by institute's display module One or more of combine.Alternatively, the feature of specific module is distributed in multiple modules in which can replace.Come It (alternatively) can be executed from the one or more features of a module/component by another module/component.Based on following Patent application, engine controller can also include multiple additional features, module or operation: including U.S. Patent number 7, 954,474,7,886,715,7,849,835,7,577,511,8,099,224,8,131,445,8,131,447 and 8,616, 181；U.S. Patent Application No. 13/774,134,13/963,686,13/953,615,13/953,615,13/886,107,13/ 963,759、13/963,819、 13/961,701、13/963,744、13/843,567、13/794,157、13/842,234、 13/654,244,13/654,248,14/638,908,14/799,389,14/207,109 and 14/206,918；And the U.S. Provisional Patent Application No. 61/080,192,61/104,222 and 61/640,646, these applications are respectively led to for all purposes It crosses to quote and be incorporated herein.Any feature, module and operation described in patent documents above can be added to shown hair Motivation controller 1630.In different substitution implementations, a microprocessor, ECU or other computing devices can be used, It is suitble to using programmable logic using the combination of aforementioned items and/or with any other using analog component or digital unit Mode algorithmically realize these functional blocks.

Referring next to Figure 17, it is used to determine that multistage to skip ignition type point for illustrate specific embodiment according to the present invention The method of fiery sequence.This method can be executed by the engine controller 1630 shown in Figure 16.

Initially, at step 1705, which is based on input signal 1614 (Figure 16), current hair The motivation speed of service, transmission gear, and/or other engine parameters determine desired engine torque.Input signal 1614 are originated from any suitable one or more sensors or operating parameter, including, for example, accelerator pedal position sensor.

At step 1710, which determines the effective igniting for being suitable for delivering desired torque Score.In a number of different embodiments, as previously discussed, which includes the igniting of each cylinder group Both score and the associated torque level of the cylinder group.The determination of effectively igniting score can be based on any suitable hair Motivation parameter, such as gear, engine speed etc. and other engine features such as NVH and fuel efficiency.In some realities It applies in example, which is selected from one group of predetermined effectively igniting score, this group effectively igniting score has been determined as combustion Expect efficiency and/or there is acceptable NVH feature for given engine parameter.Can be used any suitable mechanism, Such as the one or more look-up table in conjunction with described in Figure 18 of the application generates or selects effective igniting score.Scheming An approach for determining suitable effectively igniting score is illustrated in 18.Figure 18 illustrates exemplary look-up table 1800, should Look-up table includes the index of engine speed and igniting score (EFF).This table is associated with particular gears, it is possible to In the presence of other tables for other gears.Alternatively, in another version of the table shown, gear is to the additional of the table Index.For each effective igniting score and engine speed, which, which indicates, still provides the maximum of acceptable NVH performance Allow high level operating room's torque output.Each effectively igniting score is based on igniting associated with each igniting level The combination of score and the output under each level.For tool, there are two the multistage of the cylinder group with different torque levels to jump The case where crossing ignition type engine, the score (EFF) that will can effectively light a fire are expressed as igniting score (FF), and will be high-level The ratio between igniting number and total igniting number are represented as HLF (height).It is related that the effective igniting score different to these is shown in Figure 19 The FF value and HLF value of connection.

It is that NVH generally tends to work in higher level that the maximum, which allows operating room's output valve the fact that reflect, Room output is lower to increase.Therefore, for any given engine speed and effective igniting score, it is desirable to ensure operating room Output is no more than specified level, so that NVH is maintained at acceptable level.In a number of different embodiments, igniting point Number calculator 1602 is searched all over the table, thus find it is one or more be suitable for deliver desired by torque and also meet the table In operating room output require effective igniting score.

One example can will be described how using the table to help to illustrate.In this example, desired hair Motivation torque score is 0.2, and engine speed is 1300RPM.If reference associated with high-level firing cylinder group Torque value is maximum torque, then score of effectively lighting a fire must equal or exceed the engine torque score and wish to generate The torque of prestige.Therefore in this example, only 0.2 or bigger EFF value can generate required torque output.Figure 18 In table 1800 the possibility EFF value array greater than 0.2 is listed in column 1802.

The igniting interpolater can be searched all over column 1802 about these rows for being directed to 1300RPM engine speed, be come It finds and optimal fuel efficient and the suitable available point of acceptable NVH is provided while delivering required engine torque Fiery score.

For example, consider that effectively igniting score is 0.57 when engine loading (engine torque score) is 0.2. Check that the table 1800 is shown, the torque level (CTF of equation 5a and 5b relevant to high torque igniting^act _H) be necessarily less than 0.14 CTF (entry 1804) is to obtain acceptable NVH performance.However, it can will only generate 0.57*0.14=0.08 ETF, this is far below required torque level.Therefore, in this case, it will be not excluded for the EFF using 0.57, because it NVH and torque demand cannot be met simultaneously.In a number of different embodiments, which searches all over table 1800 these rows are until find suitable effectively igniting score.Such as in 0.70 effective igniting score, delivering is wished Operating room's output (the CTF)=0.2/0.70=0.29 for hoping torque and requiring.Check that table shown in Figure 19 indicates, 0.7 EFF corresponds to FF=1 and HLF=0.Therefore, all these igniting are corresponding low with reference to CTF with 0.7 low-level Level igniting, and all these ignition timings will be related to igniting and in this case there will be no skip.

The high-level operating room output for delivering desired torque and requiring is 0.29, and the value is lower than described in table 1800 High-level operating room export threshold value (0.58, entry 1806), it can be considered to be used to run hair for effective igniting score Motivation.The igniting interpolater 1602 continues to search all over these rows and it was determined that multiple effective igniting scores meet the table Maximum functional room export require.Each such effectively igniting score is referred to herein as candidate effectively igniting score.

The igniting interpolater 1602 then selects one in these candidate effectively igniting scores.This selection can be with It carries out in any suitable manner.Such as in some implementations, which searches for another table Or module, the table or module indicate opposite fuel consumption or effect for each of multiple effective igniting scores Rate.Based on this fuel consumption information, which selects one in these candidate effectively igniting scores.That is, calculator 1602 selection most or highest fuel efficiency candidate effectively igniting score.Selected effective igniting score, which shows, to be passed through Adjustment engine parameter is defeated come engine desired by delivering to realize desired Dynamic gene (as described in about equation 5) Torque output necessary out, according to high level and low-level igniting.It is selected in multiple and different implementations Effectively igniting score, which is normally based on, is being run with acceptable NVH performance while there is maximization fuel economy to select 's.Once having been selected or generating effective igniting score, it is just transmitted to the ignition timing determining module 1606.

Later, at the step 1715 of Figure 17, which determines that multistage skips ignition type igniting Sequence.The multistage skips ignition type igniting sequence and indicates a series of igniting decisions (that is, light a fire and skip).For the sequence In each igniting, select operating room's torque output level.In a number of different embodiments, this is indicated in the sequence A selection.

The multistage is skipped ignition type igniting sequence and can be generated with various modes, this depends on concrete application Needs.Such as in some implementations, which searches for one or more look-up tables, these Look-up table indicates the suitable igniting sequence of selected engine parameter (including score of preferably lighting a fire) based on one or more Column.Additionally or alternatively, which may include these igniting decisions of output and/or igniting sequence The sigma delta converter or circuit of column.Various different example realization side is described in Figure 19-22 below Formula.

Figure 19-20 illustrates a concrete implementation mode.In this implementation, the ignition timing determining module 1606 determine the multistage multiple features for skipping ignition type igniting sequence using one or more look-up tables.It is shown in Figure 19 Exemplary look-up table.Figure 19 is the igniting score indicated for one group is effectively lighted a fire each of score (EFF) (FF) and the table of high-level score (HLF).Igniting score (FF) indicates light a fire on the section of multiple ignition timings number and point The ratio between fiery opportunity number (for example, light a fire and skip).The igniting score not necessarily shows the torsion of fixed level for lighting a fire every time Square output.Horizontal score (LF) be to aid in instruction respectively generate the igniting number of specific (such as high or low) horizontal torque output with Any value of the ratio between total igniting number.In the embodiment shown, high-level score (HLF) has been used, which refers to The ratio between high-level torque output igniting number and total igniting number are shown.

In this particular instance, the operating room that operating room's igniting can produce two different levels is exported: high level Torque output (such as 100% exported with reference to cylinder torque) and low-level torque data are (for example, defeated with reference to cylinder torque Out 70%).It can produce two horizontal torque outputs due to lighting a fire every time, so if HLF is 1/3, in some area Between upper igniting number 1/3 generate high-level torque output and the 2/3 of number of lighting a fire generates the output of low-level torque.Above system It can optionally modify with indicant to be suitable for different implementations, such as the operating room for more than two level Torque output.

Using the look-up table shown in Figure 19, which determines based in step 1710 Effective igniting score (EFF) determine that multistage skips ignition type igniting sequence (such as high-level score and igniting score) Feature.Therefore, in the example shown in Figure 19, if EFF is 0.57, score of lighting a fire is 2/3, and the high level Score is 1/2.

In a number of different embodiments, which, which then generates, meets identified igniting The multistage of feature skips ignition type igniting sequence.That is, in order to use examples detailed above, if igniting score is the 2/3 and Gao Shui Dividing number equally is 1/2, then the ignition timing determining module 1606 generates mixed including multiple ignition timing results on selected section The igniting sequence of conjunction.In the section, the 2/3 of decision of lighting a fire is igniting and 1/3 is to skip.In igniting, 1/2 is and height Torque output is associated and remaining is associated with low torque output.In some embodiments, which takes A series of form of CTF numerical value, such as 0,1,0.7,0 sequence can indicate to skip, high torque output igniting, low torque are defeated It lights a fire out and another time is skipped.Any suitable algorithm, circuit or mechanism can be used to generate in the igniting sequence.

Such circuit is illustrated in Figure 20.It is one of the ignition timing determining module 1606 that Figure 20, which is illustrated, The sigma delta circuit 2000 divided.In the example shown, which will be from the table of Figure 19 The igniting score (FF) of middle acquisition and high-level score (HLF) input suitable to generate in sigma delta circuit 2000 Multistage skip ignition type igniting sequence.Circuit 2000 can be realized using hardware or software (for example, as software module A part is realized with computer executable code).In the accompanying drawings, symbol 1/z indication lag.

The top section of circuit 2000 effectively implements single order sigma delta algorithm.In the circuit 2000, defeated Enter and igniting score (FF) is provided at 2002.At subtracter 2004, igniting score 2002 is added with feedback 2006.Summation 2008 are transferred into accumulator 2010.Summation 2008 is added with feedback 2014 to generate summation 2012 by the accumulator 2010.Always Accumulator 2010 is fed back to as feedback 2014 with 2012.Summation 2012 is transferred into quantizer 2018 and is converted into two System stream.That is, quantizer 2018 generates igniting value 2020, which forms 0 and 1 sequence.Each 0 instruction should skip correlation The operating room of connection.Each 1 instruction should light a fire associated operating room.The igniting value is converted into floating at converter 2019 To generate value 2022, which is entered in subtracter 2004 points as feedback 2006.

The bottom part of the circuit indicates to deliver desired torsion about each igniting as indicated by value 2020 Square, the igniting should generate any horizontal torque output.Value 2022 is transferred into multiplier 2023, which also receives HLF 2001.The two input values are multiplied by the multiplier 2023.Therefore, if indicating to skip at value 2022, this causes multiplication The output of device 2023 is 0.Value 2026 is produced with comultiplication, which is transferred into subtracter 2035.The subtracter 2035 is from value Feedback 2027 is subtracted in 2026.Resulting value 2037 is transferred into accumulator 2028.The accumulator 2028 is by value 2037 and feeds back 2030 are added.Resulting value 2032 is fed back to accumulator 2028 and is also communicated to quantizer as feedback 2030 2040.The quantizer 2040 converts the input into binary value, i.e., and 0 or 1.(for example, if input value 2032 >=1, it measures The output valve for changing device is 1, and otherwise 0) output valve is.It is resulting high level mark 2042 indicate it is associated igniting (such as by Indicated by igniting value 2020) it whether is the igniting that should generate high water twist square output.That is, in this example, if the Gao Shui Flat mark 2042 is 0, then associated igniting should generate low-level output.It is related if the high level mark 2042 is 1 The igniting of connection should generate high-level output.If (instruction of igniting value 2020 is skipped, and high-level mark 2042 will be 0 and be It is incoherent).The high level mark 2042 is transferred into converter 2044, which converts the value to floating number.Institute Digital 2046 are obtained as feedback 2027 and is transferred into subtracter 2035.

Therefore foregoing circuit provide can be used for running engine multistage skip ignition type igniting sequence.At this In example, based on igniting score (FF) (such as determination in the step 1710 of Figure 17 and/or in the look-up table of Figure 19), produce Igniting value 2020 is given birth to.If igniting value 2020 is 1, associated operating room is lighted a fire.It lights a fire for such every time, High-level mark 2042 can be 0 or 1, this depends on (height) horizontal score 2001 (for example, the look-up table as used Figure 19 It is identified).If the high level mark is 1, which should generate the igniting of high level output.If it is 0, then should Igniting should generate the igniting of low-level output.If igniting value 2020 is 0, associated operating room should be skipped.By this Zero, which is sent to multiplier 2023, will cause associated high-level mark also to become 0.Over time, which can To generate the value of two binary streams, these values indicate igniting decision and operating room's output level, such as 1-0 (that is, igniting Value 2020 be 0 perhaps 1 high-level mark 2042 be 0 or 1), 0-0,1-0,0-1,1-1.

Figure 21 illustrates another circuit 2100, which is arranged to use and determine in such as step 1710 of Figure 17 Effective igniting score (EFF) come generate multistage skip ignition type igniting sequence.Such circuit is sometimes referred to as multidigit or more Grade sigma delta.Since the input 2102 for representing effective igniting score, which is arranged to generate output 2130, output instruction is skipped, is exported with high-level torque and lighted a fire to light a fire or be exported with low-level torque.

In the circuit, 2102 (being the identified EFF in step 1710) of input are transferred into subtracter 2104.From Feedback 2132 is subtracted in the input 2102.Resulting value 2106 is transferred into accumulator 2107.The accumulator 2107 will be fed back 2108 are added with value 2106.Resulting summation 2110 is fed back to accumulator 2107 as feedback 2108.The summation 2110 goes back quilt It is sent to subtracter 2126 and subtracter 2112.Value 2124 is defined as 1, which indicates high-level operating room's output.Value 2124 are transferred into switch 2122 and subtracter 2126.Subtracter 2126 subtracts value 2124 from summation 2110 to generate value 2128, which is transferred into switch 2122.

Value 2114 is defined as 0.7 in this example and is intended to refer to the output of low-level operating room.Value 2114 is passed It send to subtracter 2112 and switch 2118.Subtracter 2112 subtracts value 2114 from summation 2110 with generation value 2140, the value It is transferred into switch 2118.

Switch 2118 receives three input values: value 2114, value 2140 and value 2116.Value 2116 indicates floor level work Make room output (such as not generating skipping for torque).Switch 2118 is according to value 2140 by value 2114 or value 2116 as its output Value is transmitted.If value 2140, less than 0, the output valve of switch 2118 is equal to value 2116.If value 2140 is greater than or equal to 0, Then the output valve of the switch 2118 is value 2114.The output valve 2120 of the switch is passed to switch 2122.

Switch 2122 receives three input values: value 2120, value 2128 and value 2124.The switch will be worth according to value 2128 2120 or value 2124 transmitted as output valve.If summation 2128, less than 0, the output valve of switch 2130 is value 2120.Such as Fruit value 2128 is greater than or equal to 0, then the output valve of the switch 2130 is value 2124.The output valve of switch 2122 is as feedback 2132 are sent to subtracter 2104.

The output valve 2130 of switch 2122 indicates igniting and determines, and if igniting decision is related to lighting a fire, indicates The torque output level of the igniting is how many.In the embodiment shown, which is 0,1 or 0.7.Therefore, Based on input value 2102, output valve 2130 indicate associated operating room be during particular duty cycle be skipped, with High level output is ignited or is ignited with low-level output.Over time, circuit 2100 is arranged to for producing Raw a succession of value (for example, 0,1,0.7,0.7,0,1 etc.), these values form multistage and skip ignition type igniting sequence (for example, referring to Show and has skipped, light a fire with the igniting of high-level torque, with the igniting of low-level torque, with low-level torque, skip, turned round with high level Square igniting etc.).

It should be noted that in the above-described example, multistage skip ignition type igniting sequence have at least three different levels 0, 0.7 and 1 mixing.By using these three different levels, many different sequences can produce the same or similar effective Igniting score.These can be determined with the igniting interpolater 1602 or the ignition timing determining module 1606 (Figure 16) Multistage skips generation while delivering required output torque level and acceptable NVH feature of which of igniting sequence Optimal fuel economy.Slightly violate intuitively, sometimes it may be desirable that be even when can be by using all low outputs When torque pulse provides the output of total engine torque, insertion high torque output igniting, because may using high output torque pulse Noise and vibration deviation resonance that engine can be made to generate or other undesirable frequencies.

Figure 22 is illustrated for more to determine based on effective igniting score (EFF) identified in the step 1710 of Figure 17 Grade skips the another way of ignition type igniting sequence.In this approach, ignition timing determining module 1606 using one or Multiple look-up tables are lighted a fire to skip ignition type based on effective igniting score (EFF) selection multistage identified in step 1710 Sequence.

Figure 22 includes exemplary look-up table 2200.The look-up table 2200 indicates multiple and different multistages and skips ignition type Igniting sequence.Each sequence (such as every row in the table) is related to multiple ignition timing results and is and different available points Fiery score is associated.In the table, each ignition timing result is defined as 0 (specified to skip), 1 (specified defeated with high torque Level point fire out) or 0.7 (specified with the igniting of low torque output level).Each ignition timing is associated with specific cylinder , as indicated by these column associated with the cylinder 1-4 of 4 Cylinder engines.

In this example, the ignition timing determining module 1606 determined using the table 2200 will delivering substantially with Identified effective multistage for lighting a fire the identical amount of engine torque of score skips ignition type igniting sequence in step 1710. For example, if effective igniting score is 0.47, associated igniting sequence is 0.7,0.7,0,0.7,0.7,0, 0.7,0.7,0,0.7,0.7,0.This means that in coherent working cycles, operating room is ignited, is ignited, being skipped, quilt It lights a fire, be ignited, be skipped, be ignited, be ignited, be skipped, be ignited, be ignited and be skipped.To each igniting It indicates using 0.7 and there is no 1, all operating rooms being ignited are ignited to generate low torque output, do not generate height Torque output.

It is to be understood that Figure 18-22 is illustrated for determining that multistage skips only some modes of ignition type igniting sequence, And above-mentioned technology can optionally be modified to meet the needs of different application.Such as in some implementations, it is not required to Effectively igniting score is calculated, and/or does not require sigma delta converter.Multiple and different embodiments, which is related to determination, asks It seeks torque (for example, as in conjunction with described in step 1705 of Figure 17) and inquires one or more look-up tables to be based on being somebody's turn to do Requested torque come determine this skip ignition type igniting sequence.In some approach, the function of these tables is instead by software mould What block, software code, algorithm or circuit provided.

Referring back to Figure 17, at step 1720, which skips igniting sequence for this and transmits To ignition control unit 1610.The ignition control unit 1610 then will igniting determine be assigned to associated operating room and Correspondingly run these operating rooms.That is, as in conjunction with discussing step 1715, in a number of different embodiments, in the sequence Each igniting be with a series of torque output level (such as high torque output, low torque export) it is associated.The fire control Unit 1610 processed by the sequence each igniting and its associated torque output level be assigned to specific operating room.This A little operating rooms are ignited and are run to generate its associated torque output level.

For example, if igniting sequence indicate multiple operating rooms be skipped in succession, with high torque output be ignited, And it is then ignited with low torque output, then the ignition control unit 1610 orders associated operating room to come by this method Operation.In a number of different embodiments, this can be related to being independently controlled the intake valve of associated operating room to produce Raw this skips the different torque output level indicated in ignition type igniting sequence.It these operating rooms can be by using in this institute The valve control skill of description (for example, being discussed in conjunction with Figure 1A, 1B, 2-11,12A-12F, 13A-13B, 14A-14H and 15) Any in art runs the torque output level to generate different.These operating rooms can also have herein or attached above Any one person in design discussed in figure or arrangement.It is to be understood that can be by point in not every operating room Fire/is skipped or with different torque levels come in multiple and different embodiments for controlling, control described in Figure 17-22 Method may include the limitation of identification engine hardware and command job room carries out high-level igniting/low-level and lights a fire, suitably It lights a fire/skips.

In a number of different embodiments, effectively igniting score (step 1710), determining igniting sequence, and/or needle are determined It is based on ignition timing one by one that selected working cycles and operating room's (step 1715) are selected with high or low horizontal torque output It executes.Therefore, multiple operations as described above can in response to requested torque or other conditions variation and rapidly hold Row.In other embodiments, the above operation is with slightly lesser frequency (such as every an ignition timing or each engine Circulation) it executes.

Any one of these systems described in Fig. 1-15 can be used to hold in the operation of the method 1700 of Figure 17 Row.For example, method 1700 is related to generating igniting sequence, and each igniting in the igniting sequence is exported with specific torque It is horizontal associated.In a number of different embodiments, these torque output level are to combine Figure 13 A-13B and Figure 14 A-14H The different dynamic level or torque output level discussed.That is, when implementing igniting sequence (the step of Figure 17 in engine 1720) it when and selected operating room is ignited to generate the output of the torque of different level, is controlled using valve described in attached drawing Any one of mechanism and/or other systems export to generate the torque of these different levels.

Transition between engine torque score and effectively igniting score

Skipping in ignition type engine control challenge is between the different engine output torque level of management Transition.Following instance is considered, wherein stepping on acceleration pedal slightly to indicate to wish more torques.This torque increases Request can only be realized by increasing to cylinder load more than the level for providing acceptable level of NVH.So selection Different igniting scores and horizontal score.However, generated delivering change in torque may if using new model suddenly Lead to the problem of individual NVH suddenly very much.Accordingly, it may be desirable to be two effectively igniting scores between have it is more progressive Transition.

Various technologies can be used to manage in such transition.For example, adjustable spark timing so as to Torque output is reduced in transient process.However, not having fuel economy usually using spark timing by this method.Separately One option is to skip ignition type engine control using multistage to manage transition.

A kind of example technique is described in Figure 23.Figure 23, which is illustrated, a kind of skips ignition type engine control using multistage It makes to manage the method 2300 of the transition between first and second score of effectively lighting a fire.Initially, it at step 2305, uses Specific effective igniting score runs engine.Later, the engine is run using the second different preferred igniting score (step 2310).These different effective igniting scores are generally associated from different engine output torque levels, But engine torque can be remained unchanged in effectively igniting score transition period in some cases.

These effectively igniting scores can respectively be related to running engine in a manner of skipping igniting.In some cases Under, it is understood that there may be various igniting patterns, and in other cases, it is understood that there may be the igniting pattern of limited quantity, such as Cylinder deactivation (rolling cylinder deactivation) in turn, wherein cylinder thus in alternate ignition timing point Fire and skip.In some cases, effectively igniting score can correspond to variable displacement operation, such as wherein fix one group of vapour Cylinder is deactivated or is run using whole cylinders.Even if the variable displacement operation carried out by fixed cylinder group is not to skip a little Fire operation (if engine hardware support), it is nonetheless possible to use arcing control carrys out the transition between multiple fixed displacement levels.? Under some cases, score of effectively lighting a fire can be zero, such as when sliding.Engine is being run using particular ignition score Each operating status during, the engine can be used in these technologies in conjunction with described in Figure 16 to 22 it is any come Operation.

At step 2315, the transition period between two effectively igniting score, engine skips ignition type using multistage Igniting sequence is run.The multistage is skipped ignition type igniting sequence and can be generated with various modes, this depends on tool The needs of body application.Such as in some implementations, which gradually rises during transition to one or more A medium igniting score.Multistage, which skips ignition type igniting sequence, to be generated based on the medium igniting score of the one or more And it is used to run engine during transition.The rate of change of the transition period effective igniting score, which can be, to be based on Any suitable engine parameter, such as absolute manifold pressure.It can be used in these technologies in conjunction with described in attached drawing Any (such as one or more look-up tables, sigma delta converter etc.) skips ignition type igniting to generate the multistage Sequence.Extraly, it describes in commonly assigned U.S. Patent Application No. 13/799,389 between multiple modes Transition period using the multiple technologies of ignition operation are skipped, for all purposes, all the contents of the application are incorporated herein. Wherein described any technology can also be used.

A kind of approach, which is related to skipping scheduled multistage into ignition type igniting sequence, to be stored in library (for example, one or more In look-up table).In a number of different embodiments, each skipping ignition type igniting sequence is and specific effectively igniting score It is associated.Be used for transition to determine suitable multilevel igniting sequence, the ignition timing determining module 1606 inquiry this Library and one sequence of selection from these predetermined sequences.Then engine is run during transition using selected sequence.

Consider following instance, in this example, four cylinder engine is run using with down-firing sequence, wherein four works Make room based on pattern 0.7,0,0.7,0 to light a fire or skip.That is, these operating rooms 1-4 is repeatedly ignited, is skipped, by point Fire and be skipped, wherein every time igniting be low-level output igniting (such as being related to CTF=0.7).Therefore it is directed to this seed type Engine operation, equivalent effective igniting score is 0.35.The engine then transitions to another type of engine operation, Wherein igniting pattern will be 0.7,0.7,0.7,0.7.That is, these operating rooms will be lighted a fire repeatedly and be jumped without operating room It crosses.Igniting will generate identical low-level output (such as CTF=0.7) every time.Therefore it is transported for such engine Row, which is 0.7.I.e., it is assumed that other engine parameters (such as MAP and spark timing) are kept fixed, then from The transition period of first effective igniting score (0.35) to second effective igniting score (0.7), engine output torque will turn over Times.

In this example, which inquires one or more look-up tables.Based on associated Effectively igniting score, the one or more look-up table provide following transition multistage and skip (lower stroke below of ignition type igniting sequence Line):

0,0.7,0,0.7 (first effective igniting score)

0,1,0.7,0

0.7,0.7,0,0.7

0.7,0.7,0.7,0.7 (second effective igniting score)

Next, running work based on above-mentioned transition mode with engine transition between two effectively igniting score Make room 1-4.Engine torque increases more step by step as a result, therefore helps to make the transition smoothly and improve occupant comfort Degree.

It is to be understood that can be skipped a little in varied engine type using the traditional multistage being used above Fiery formula igniting sequence.Accordingly it is not required to which each operating room in engine can be deactivated and/or in multiple torsions Square output level down-firing.It is possible that only one in these operating rooms or it is some will have an above-mentioned function, such as before It is discussed in conjunction with Figure 14 A-14H.In the above example, for example, only first and third cylinder can be deactivated.Second He 4th cylinder be ignited in each engine cycles and can high level and low-level between adjuster operating room Output.

In some cases, the transition period between two effectively igniting score, in some applications it may be desirable to change the level Score.That is, in the engine control system for the operating room's torque output for allowing to obtain multiple levels, in effectively igniting score Between transition period, it may be useful to, change use specific studio output level frequency.

Consider following instance, in this example, engine converts between two igniting scores.When effective using first Score light a fire come when running engine, which is 1/2, and the operating room 1-4 of the engine uses 1-0-1- 0 (for example, high-level operating room's torque export down-firing, skip, high-level operating room's torque export down-firing, skip) Sequence run.When lighting a fire score effectively using second to run engine, which is 1, and the hair Motivation is run using the sequence of 1-1-1-1 (that is, each operating room is ignited with high level output).Thus, it is supposed that other are sent out Motivation parameter is kept fixed, and transition period of the engine torque output between the two effectively igniting score is double.

Since above-mentioned igniting all refers to generate the output of maximum functional room, so for each of above-mentioned operating status Igniting score be equal to effectively igniting score (assuming that every time igniting be related to CTF=1.0) and be directed to the Gao Shui of both states Dividing number (HLF) equally was 1 (that is, igniting 100% is related to high-level output).In this example, these operating rooms respectively also can (for example, CTF=0.7) down-firing is exported in low-level operating room torque.The feature of each effectively igniting score can be following Value: (X, Y), wherein X=igniting score, and Y=HLF, as shown in figure 19.Therefore, the feature of both states be (1/2, And (1,1) 1).

Transition period between the two different effective igniting scores, it is sometimes desirable to, use and engine with Used different horizontal score when one or both of these states are run is started in a manner of skipping igniting to run this Machine.Under the background of above example, during transition, there is the variation that (1,0) is arrived from (1/2,1), i.e. 0.7-0.7-0.7- 0.7 igniting sequence.That is, these operating rooms are in igniting subset in transient process between the two states with low-level Export (for example, CTF=0.7) igniting.Therefore effective igniting score is transitioned into 0.7 again to 1 from 1/2.Make in the transition period The advantages of being lighted a fire with low-level is that the NVH caused by the igniting of this class is lower.This is because these igniting are related to lower vapour Cylinder loads and also because there is no skips in the igniting pattern.

In the above example, engine is when with fixed effective igniting score operation using 1 and in these fixed points Transition period between fiery score is run using 0 high-level score.Vice versa.In other words, consider following instance, In the example, each operating room can equally light a fire with one of following two output level: high output level is (for example, CTF =1.0) or low output level (for example, CTF=0.7).In initial effectively igniting score, engine uses (1/2,0) to transport Row.In target effective igniting score, engine uses (1,0) to run.That is, with fixed effective igniting score operation When, engine is run using 0 high-level score (that is, the torque that igniting generates reduced levels exports).However, the mistake It crosses and is related to different high-level scores.In this example, engine is using the horizontal score of 1 (1/2,1) to skip igniting Mode is run.Therefore, which, which changes from 0.35 to 0.5, changes to 0.7.

In other embodiments, which can be filtered to slow down in initial and final igniting Transition between score.This can by filter the igniting score, filter the horizontal score or filter the two quantity come It realizes.It can be identical according to the property of transition for the igniting score and the filtering technique and time constant of horizontal score Or it is different.The side for filtering and managing transition is described in U.S. Patent Application No. 13/654,244 and 14/857,371 Method, for all purposes, these applications are incorporated in their entirety herein.This can be used in the transition period Any one of a little methods.Such as in some embodiments, by by FF with constant rate and by LF with calculating appropriate Rate monotonic it is subject to transition to come so that EFF is with constant rate transition.Alternatively, intermediate point, then can be first transitioned to It is transitioned into final score (such as 1/2 to 0.7, to 1), therefore LF or FF will not monotonously change.The median can basis Look-up table determines；For example, the effect of 2D table is fine, wherein be a dimension being starting score, second dimension is target point Number.Third dimension, such as the rate of change of engine parameter or accelerator pedal position can be added.Also, in certain situations Under, it thus may be desirable to it maintains constant effective igniting score but changes the igniting score and horizontal score.In this feelings Under condition, FF and LF can be with constant opposite rate transitions, so that their product EFF is kept constant.

Knock detection and management

Multistage can be used and skip ignition type engine control to help to manage pinking.Pinking is tended in higher pressure Power or at a temperature of more frequently occur, such as when operating room lighted a fire with fuel with the maximum amount of air it is highest possible to generate Torque output when.Therefore, under selected conditions, it is desirable to, it is defeated with lower torque when having been detected by pinking It is horizontal out to light a fire to operating room.

Referring now to Figure 24, a kind of pinking skipped in retrofire machine control system for reducing multistage is described The exemplary method 2400 of possibility.Initially, at step 2405, ignition type igniting sequence is skipped using multistage to run hair Motivation.That is, multistage, which skips the reception torque request of ignition type engine controller 1630 and generates multistage, skips ignition type igniting Sequence delivers desired torque.The engine is run based on the igniting sequence.In a number of different embodiments, make It is skipped in ignition operation, mechanism and/or system with the multistage of (for example, as described in Figure 16 or 17) described herein Any one run engine.

At step 2410, engine diagnostic module 1650 (Figure 16) detects one or more work of engine 1612 Pinking in room.Any suitable technology or sensor can be used to detect the possibility pinking in engine.Such as some In implementation, which receives the sensing data from one or more detonation sensor, these Sensor detects the vibration patterns as caused by these operating rooms of engine 1612.The engine diagnostic module 1650 analysis These vibration patterns are to determine whether to have occurred and that pinking.

(potential) pinking in operating room in response to detecting engine 1612, the engine diagnostic module 1650 are wanted Make operating room selected by one or more only with one or more lower during seeking the working cycles selected by one or more Output level igniting (step 2415).It considers exemplary multi-stage and skips ignition type engine control system, it is special within the system Determining operating room can get off igniting in low (for example, CTF=0.5), medium (CTF=0.7) and high (CTF=1.0) level. In response to detecting (potential) pinking in specific studio, which prevents these operating rooms with one A or multiple selected horizontal (such as medium level and/or high level) lights a fire.In other words, it can make (height) is horizontal to divide Number reduction/change (from 1 to 0).This limitation can be applied to single operating room, operating room's subgroup or all working room.Also It can be applied to the working cycles of selected quantity or be applied to all working circulation with continuing predetermined time period.

In a number of different embodiments, which is transferred to the ignition timing for requirements above Determining module 1606, so that the igniting sequence of skipping in future considers such limitation when determining that sequence carrys out delivery request torque Inside.At step 2420, which is run in a manner of skipping igniting based on the requirement.That is, such as in step 2405 Engine is run describedly, but carrys out delivery request torque using only the operating room's output level being allowed to.

Pinking is tended to when operating room is ignited to generate high torque output (i.e. at higher CTF) more frequently Occur.This is because in such a situa-tion the indoor pressure and temperature of the work tend to it is significant higher.In the presence of reduction work The means of pressure and temperature in room, such as by adjusting spark timing.However, such technology generally tend to have compared with Few fuel efficiency.It is limited by reducing air inlet amount and lights a fire to reduce torque output level, it can be to have more fuel The mode of efficiency is come a possibility that reducing pinking.

Optionally, engine diagnostic module 1650 includes realizing that high torque is defeated again for requesting in response to high torque The feature lighted a fire out.At step 2425, engine controller 1630 receives high torque request, for example, being based on from accelerator pedal The data that position sensor receives.In a number of different embodiments, the high torque request must be over predetermined threshold so that This method proceeds to step 2430.

It at step 2430, is requested in response to the high torque, engine diagnostic module 1650 causes the engine control system System continues to use high output igniting.That is, eliminating some or all of these limitations in high output igniting (in step Implement at 2415).At step 2435, engine diagnostic module 1650, ignition control unit 1610, and/or power transmission It is that parameter adjustment module 1608 executes one or more suitable operations to reduce the risk of further pinking.It can be used and appoint What known technology (such as spark timing adjustment) reduces the risk of pinking.

Deceleration cylinder interrupts service and starting/stopping feature

It can also make in some situations that no operating room is ignited and manifold absolute pressure is increased to atmospheric level Ignition type engine control is skipped with multistage.For example, driver can be by him when vehicle is sliding and/or will stop Or her foot is removed from accelerator pedal.Referred to as subtract it that case, multiple and different engine systems can be transformed into Fast cylinder interrupts the mode of service (DCCO).In this mode in order to save fuel, these cylinders of engine are not being needed It is deactivated when engine torque.During section this period, intake valve and exhaust valve are switched off and do not have air from inlet manifold It is delivered in the operating room of engine.

Another situation is when implementing starting/stopping feature.That is, in some engine systems, when vehicle stop over When only, engine is not idle running but is switched off to save fuel.Under both situations above, due to do not have air from Inlet manifold is delivered in operating room, so manifold absolute pressure (MAP) is equal with atmospheric pressure.This existing problem is, When depressing under accelerator pedal or when other certain engine demand for control torques again, high MAP may cause engine to pass It send than required bigger torque.If taken no action to mitigate this torque surge, vehicle and/or engine can It can accelerate suddenly.

Multistage can be used and skip ignition type engine control to solve problem above.One kind is illustrated in Figure 25 to show Example property method 2500.Initially, at step 2505, ignition type igniting sequence is skipped using multistage to run engine.That is, Multistage, which skips ignition type engine controller 1630 and receives multiple torque requests and generate multiple multistages and skip ignition type, to be skipped Ignition type lights a fire sequence to deliver desired torque.The engine is run based on these igniting sequences.Multiple and different In embodiment, ignition operation, mechanism are skipped using the multistage of (for example, as described in Figure 16 or 17) described herein Or any one of system runs engine.

In step 2510, engine controller 1630 (or any suitable module in the controller) detection exists One or more conditions.Such as in some embodiments, controller 1630 detect engine slide/slow down, into Enter DCCO and/or has requested that torque.In other embodiments, controller 1630 detects engine using starting/stop Only feature stops and/or requested torque again.

In response to detecting the one or more condition, controller 1630 requires the working cycles selected by one or more During make operating room selected by one or more only with one or more lower torque output level come (step of lighting a fire 2515).The requirement can take diversified form.Such as in some embodiments, controller 1630 prevent to one or Any use of multiple higher operating room's output level (for example, CTF=1.0).In other words, high-level score reduced or It is maintained at lower horizontal (for example, being set as 0,1/2 etc.).The requirement may include the step 2415 of above combination Figure 24 Described any operation and feature, for example, any amount of operating room or working cycles can be limited in this way Deng.

At step 2515, which is run in such a way that multistage skips igniting based on the requirement.That is, such as in step Engine is run described in rapid 2505, but carrys out delivery request torque using only the operating room's output level being allowed to.? In some embodiments, which effectively, hereafter restores normal multistage before meeting specified conditions or within a predetermined period of time Skip ignition type engine operation.Alternatively or additionally, high-level score can be gradually increased until that recovery is normal at any time Multistage skip ignition type engine operation.It can come engine parameter (such as manifold absolute pressure) based on one or more This is dynamically adjusted to gradually increase.Facilitated using lower high-level score and/or lower operating room's torque output level Mitigate the influence of high MAP.

Optionally, engine controller 1630 can have for requiring in response to high torque and realize high output again The feature of igniting.At step 2525, engine controller 1630 receives high torque request, for example, being based on from accelerator pedal position Set the data that sensor receives.In a number of different embodiments, high torque request must be over predetermined threshold so that should Method proceeds to step 2530.

It at step 2530, is requested in response to the high torque, engine controller 1630 causes the ignition control unit 1610 continue to use high output igniting.That is, some or all of these limitations of elimination in high torque output igniting ( What step 2515 place implemented).

Any one step in method 2500 can be modified optionally for different applications.For example, the U.S. Number of patent application 14/743,581 (hereinafter referred to as apply and for all purposes by reference with its whole by ' 581 Content is incorporated herein) it describes for implementing the multiple technologies that starting stops feature by skipping igniter motor control. Any one feature described in the application of ' 581 or operation also may include in method 2500.

Engine diagnostic application

The design of engine diagnosis system can also be impacted by skipping ignition type engine control using multistage.? In a variety of different engine diagnosis systems, detected based on the certain engine parameters (for example, crankshaft accelerations) measured Engine problem.In a number of different embodiments, such system will generate the effect of the igniting of the torque output of different level Fruit is taken into account.

Referring to fig. 26, describe the illustrative methods 2600 for diagnosing engine problem.Initially, in step 2605 Place, engine diagnostic module 1650 are for example lighted a fire from ignition timing determining module 1606 and/or ignition control unit 1610 Information.The firing information includes but is not limited to light a fire to determine (for example, skip or light a fire), igniting sequence and associated work The mark of room.The firing information further includes indicating operating room associated with each decision by operating room's igniting to export water Flat information.

At step 2610, engine diagnostic module 1650 assigns window to each ignition timing.The window can be pair Any suitable period or interval on one target ignition opportunity of Ying Yuyi target operation room.It later will be across the window Mouthful a certain engine parameters are measured, whether to assist in the window procedure in the target operation room Through engine problem occurs.The characteristic of the window may be different according to the type that engine parameter measures.

Consideration is related to the example of four stroke eight cylinder engines.In this example, the window assigned corresponds to crankshaft 90 ° rotation quarter window mouth regions section.The window excessively in, target operation room igniting.That is, in this example, window covering The front half section of the power stroke of the target operation room.It is to be understood that the window can have any suitable length, this Depend on the needs with concrete application.

At step 2615, engine diagnostic module 1650 is determined, in the window procedure assigned, with the window mistake The associated operating room's torque output in one or more operating rooms in these operating rooms in journey.In other words, it is multiple not In same embodiment, ignition timing determining module 1606 and/or ignition control unit 1610 have given each operating room to assign Igniting determines.During the certain window assigned in step 2610, the igniting of target operation room.During the same window, Other operating rooms are in the different phase of operation circulation.In order to use above example, power punching has been completed in a few thing room Journey；Other operating rooms still complete or will enter later power stroke.For its associated power stroke, each operating room It is arranged to be skipped or light a fire.For each igniting, specific operating room's output level is assigned, such as with low torsion Square output igniting exports igniting etc. with high torque.Engine diagnostic module 1650 determine in assigned window procedure with these One, the associated operating room's torque output in some or all operating rooms in operating room.

At step 2620, engine diagnostic module 1650 provides engine parameter threshold value or model.Such as in some realities It applies in example, engine diagnostic module 1650 determines engine parameter threshold value (such as crankshaft accelerations threshold value), the engine parameter Threshold value will be used to assist in determining whether that there are engine problems later.That is, given firing information (step 2605) and torque export Level determines that (step 2615), the threshold value help to indicate the desired value for subsequent engine parameter measurement.In other embodiments In, engine diagnostic module 1650, which determines, can be equally used for helping the model for identifying engine problem (for example, torque mould Type).For example, it can help to indicate the expectation torque that should be generated by operating room in the window procedure with torque model. The model, which is considered, determines (for example, such as by step 2605 igniting that one or more operating rooms make in window procedure Indicated by the firing information of middle acquisition) and associated torque output level is considered (for example, such as lighting a fire every time Indicated by the determination carried out in step 2615).

At step 2625, engine diagnostic module 1650 measures engine parameter in the window procedure.According to specific The needs of application and the engine problem just diagnosed, can be used various engine parameters.For example, some designs It is related to measuring crankshaft accelerations, MAP and/or lambda sensor output in window procedure, although any suitable ginseng can be measured Number.It is to be understood that different windows can be used in different measurements.

It is then determined based on measurement (step 2625) and threshold value/model (step 2620), engine diagnostic module 1650 With the presence or absence of engine problem.This determination can be executed with various modes.Such as in some embodiments, it measures Crankshaft accelerations (step 2625).Generated actual torque in the window procedure can be estimated with the measured value.By this Actual torque is with the use calculated expectation torque of torque model (for example, step 2620) is compared.If the actual torque Less than desired torque, then engine diagnostic module 1650 determines that there may be engine problem (for example, loss of ignition).? In other implementations, by crankshaft accelerations measured value and threshold value (for example, step 2620) is compared and does not need torque Estimation.If the actual measured value be more than the threshold value, it assumes that engine problem exist or there may be.

How some embodiments of this method can be executed to help to show, and provide following instance.At this In example, engine is four stroke eight cylinder engines, and wherein these cylinders are ignited by the sequence of 1-8-7-2-6-5-4-3.Often A cylinder has the intake valve of independent control and/or is able to use different circulations to operate these valves, as combined Fig. 1-15 institute Description.Therefore each cylinder can be lighted a fire when being ignited with one of two torque output level: for example low torque exports (for example, CTF=0.7) or high output (CTF=1.0).

Engine diagnostic module 1650 be arranged to for determine operating room 8 whether loss of ignition.The module is lighted a fire Information (step 2605), the firing information indicate 1,8,7,2,6,5,4 and 3 point of the operating room during a sequence of ignition timing It is not to be skipped, be ignited, be skipped, be ignited, be skipped, be ignited, be skipped and be ignited.The module is to operating room 8 The above ignition timing assign window (step 2610).The window assigned occurs before cylinder 8 is in its power stroke Half section and when covering 90 ° of rotations of the crankshaft.

In this example, it is defeated with low torque that engine diagnostic module 1650, which further defines each in the above igniting, (step 2615) out, including the igniting of operating room 8.In this example, the module 1650 determination considers cylinder torque The crankshaft accelerations threshold value of output level.That is, if engine diagnostic module 1650 is instead it is well established that in the above igniting One, some or all alternatively high torque output under, then threshold value will be different.

In a number of different embodiments, the crankshaft accelerations threshold value is especially seriously by operation (the i.e. cylinder 8 of operating room 8 To be lighted a fire with low torque output or high torque output) influence.However, torque associated with other cylinders exports water It is flat also to can have influence.For example, in the window procedure assigned, when cylinder 8 is in the front half section of power stroke, vapour Cylinder 1 is in the second half section of its power stroke.Whether cylinder 1 may also be shown with low torque output rather than high torque output igniting Influence threshold values.

The engine diagnostic module 1650 then measures the actual crank acceleration (step 2625) in the window procedure. The measured value is compared by module 1650 with threshold value.If measured value (substantially) is lower than threshold value, it is determined that 8 points of operating room Fire failure (or a possibility that being ignited unsuccessfully there are it).

Above example and method 2600 can be modified with various modes for different applications.Citing and Speech, commonly assigned U.S. Patent Application No. 14/207,109,14/582,008,14/700,494 and 14/206,918 (out In all purposes, these applications are incorporated in their entirety herein) describe a variety of different engine diagnosis systems And operation.Any feature described in these applications or operation can be in introducing methods 2600.

It can be by any and all described arrangements of components at quickly updating their determination/calculating.One It is by ignition timing to update these determination/calculating (although this is not a requirement) in a little preferred embodiments.Such as In some embodiments, determine that (step 1710) of Figure 17 determines that multistage skips ignition type igniting sequence to (effective) igniting score (step 1715), and/or engine (step 1720) is run based on sequence is based on by ignition timing executing.Point by point The advantages of controlling to fiery opportunity a variety of different components is so that engine has response to the input of change and/or condition very much Property.Although operated by ignition timing it is highly effective, it is to be understood that, these different components, which can be, to be more slowly updated, And good control is still provided simultaneously (for example, can be with ground execution points such as each turn of crankshaft, every two or more ignition timings Fiery score/sequence determines).

It is mainly piston-engined in the operation naturally aspirated, 4 strokes, the internal combustion that are suitable for use in motor vehicles The present invention is elaborated under background.It will be appreciated, however, that described application is highly suitable for diversified internal-combustion engine In machine.These internal combustion engines include for almost any type of vehicle-include automobile, truck, ship, aircraft, motorcycle, The engine of trail bike etc.；And be relate suitable to operating room igniting and using internal combustion engine it is substantially any its The engine that he applies.These described different approaches are started from what is operated under diversified different thermodynamic cycles Machine works together, including almost any type of two reciprocating pistons engine, diesel engine, Otto engine, double follows Ring engine, miller cycle engine, the gloomy cycle engine of Acker gold, rotor (Wankel) engine and other kinds of Rotary engine, Sabath'e-cycle engine (for example, Otto and Diesel's two-cycle engine), hybrid engine, radial direction are started Machine etc..It is additionally considered that described method will be highly suitable for internal combustion engine newly developed, no matter whether they utilize currently The known or thermodynamic cycle developed later is run.Also engine with supercharger can be used, such as those are pressurized using superpressure The engine of device or turbocharger.Maximum in-cylinder load corresponds to pressurize to air inlet in this case And the maximum in-cylinder aeration quantity obtained.

It is also understood that any method described herein or operation can be and deposited in the form of computer executable code It stores up in suitable computer-readable medium.These operations are carried out when processor executes computer code.Such behaviour Make to include but is not limited to igniting interpolater 1602, ignition timing determining module 1606, ignition control unit 1610, power Train Parameters adjustment module 1608, engine controller 1630, engine diagnostic module 1650 or described herein Any other module, any and all operation that executes of component or controller.

Some in above embodiments are related to deactivating operating room.In multiple and different implementations, deactivated operating room is related to And it prevents from that air is pumped across to the operating room being skipped in the working cycle process being skipped selected by one or more.It can Operating room is skipped or deactivated in a manner of various.In multiple and different approach, low pressure is formed in the operating room Spring, i.e., discharge gas in the operating room after discharging in previous operational cycle, and both intake valve or exhaust valve are subsequent Working cycle process in do not open, thus form low-voltage vacuum in the operating room.In going back other embodiment again, High pressure spring is formed in the operating room being skipped, that is, prevents air and/or discharge gas from escaping the operating room.The operating room It can be deactivated in any suitable manner, so that the operating room contributes some power or not tribute during its power stroke Offer power.

The application further relates to torque for generating different level or with different air inlet amount or cylinder water load The concept of flat operating room.For example, these torque output level can be skipped in ignition type igniting sequence in multistage and be indicated And/or it is stored in look-up table or library.As previously discussed, in some embodiments, each such torque output level It is to be implemented using different groups of operation, these operations description in this application is (for example, open intake valve and another One intake valve is not opened, opens two intake valves, uses different circulation etc. for different intake valves).In some approach In, the torque level generated by operating room can be based on changing by ignition timing, such as cylinder can be in working cycle process In be skipped, in next working cycle process with high torque output come light a fire, in next working cycle process with low Torque exports to light a fire and be then skipped or light a fire with any torque output level.

Multiple embodiments of the invention are mainly described under a kind of background for skipping ignition control arrangement, In the arrangement, in the working cycle process skipped by deactivate both intake valve and exhaust valve come deactivate these cylinders so as to Air is prevented to be pumped in the working cycle process skipped across cylinder.It will be appreciated, however, that some skip lighting valve Actuation scheme is expected only deactivating exhaust valve or deactivates these intake valves only effectively to deactivate these cylinders and prevent air quilt It is pumped across these cylinders.Several approach in described approach are equally applicable to such application.In addition, although generally Preferably cylinder deactivation, and therefore prevent air from passing through these cylinder deactivations in the working cycle process skipped, but Be in the presence of may want to selected skipping passed air through in working cycle process a cylinder it is some specific when Between.By way of example, when being desired with engine braking, this may be desired, and/or relevant to specific exhaust apparatus Desired by diagnosis or operation require.It may also be useful when converting out DCCO (deceleration cylinder interrupts service) state.It is described Valve controlling soil moist be equally applicable to such application.

This application involves the torsions for selectively generating multiple and different (for example, high or low) from the operating room being ignited The a variety of not homologous rays and technology of square output level.In a number of different embodiments, it will thus be appreciated that followed in selected work (operating room is ignited in the process) multiple engine conditions can be kept substantially that identical (but this is not during ring It is required).Such engine condition include but is not limited to manifold absolute pressure, cam phaser setting, engine speed and/ Or throttle position.In other words, This application describes various exemplary valve control system and technology (for example, in conjunction with Figure 1A, 1B, 2-11,12A-12F, 13A, 13B, 14A-14H and 15 are discussed), these valve control systems be arranged to be used for so that The operating room being ignited generates different torque output level, without for example changing throttle position, MAP, engine speed And/or cam phaser is arranged to generate those different torque output level.

Multiple implementations of the invention are highly suitable for that dynamic is combined to skip ignition operation, in this operation accumulator The tracking of other mechanisms required but be not delivered or be delivered but ignition section of failed call, allow to be based on Igniting by ignition timing is made to determine.However, described technology is applied equally well to include using such as utilizing wheel The fixed ignition pattern or igniting sequence that stream cylinder deactivation and/or a variety of different other may occur when skipping firing technique The substantially any of ignition operation of skipping skip igniter applications (wherein independent vapour during with carrying out practically mode operation Cylinder is ignited sometimes and in the operational mode that is skipped sometimes).It can also be in variable stroke engine control using similar Technology, change the stroke quantity in each operating room in the variable stroke engine effectively to change engine Discharge capacity.

At least some embodiments of the invention include at least following technical scheme.

Scheme 1. is a kind of for controlling to there is the operation of the internal combustion engine of multiple operating rooms to deliver desired output Method, wherein each operating room with by least one cam-actuated intake valve and have at least one exhaust valve, should Method includes:

Run the engine in a manner of skipping igniting, which be skip the selected working cycles being skipped and So that selected movable working cycles igniting exports to deliver desired transmitter, wherein in the operation of the engine It is based on by ignition timing being dynamically determined each working cycles in journey being to light a fire also to be to skip；And

High torque output or low torque output are selected in the operating room being ignited, wherein in the operation of the engine It is based on by ignition timing being dynamically determined in journey and be exported using high torque output or low torque；And

Based on high torque output or low torque output has been selected in the operating room being ignited, to adjust the quilt The air inlet amount of the operating room of igniting.

The method as described in scheme 1 of scheme 2., wherein by independently controlling each in the operating room being ignited To adjust the air inlet amount, to generate, high torque exports at least two intake valves in operating room or low torque exports.

The method as described in scheme 1 of scheme 3. further comprises:

The operating room being skipped is deactivated in the selected working cycle process being skipped, thus to prevent described Air is pumped across to the operating room being skipped in the selected working cycle process being skipped.

The method as described in scheme 1 of scheme 4., wherein all intake valves and exhaust valve be by with one or more cams One or more cam protrusions actuating of axis connection.

The method as described in scheme 1 of scheme 5. further comprises:

Ignition type igniting sequence is skipped in generation, this is skipped ignition type igniting sequence and indicates current point for igniting every time Fire is related to exporting using high torque or low torque exports；And

Ignition type igniting sequence is skipped based on this to run the engine.

The method as described in scheme 1 of scheme 6. further comprises:

Determine horizontal score and igniting score, wherein horizontal score help indicates high torque output or low torque output Number light a fire relative to the ratio for exporting the igniting sum including lighting a fire number including high torque output and low torque；And

The engine is run in a manner of skipping igniting based on the horizontal score and the igniting score.

The method as described in scheme 1 of scheme 7., wherein at least in part with sigma delta converter to determine State is high torque output or the selection that low torque exports in the operating room being ignited.

The method as described in scheme 1 of scheme 8., wherein the selection of high torque output or low torque output is based on lookup One or more of table and state machine.

The method as described in scheme 1 of scheme 9., wherein the multiple operating room respectively include the first intake valve and second into Air valve, this method further comprise:

When running the engine in a manner of skipping igniting and during selected movable working cycles, base It is recycled in different timings to open and close first intake valve and the second intake valve.

Method of the scheme 10. as described in scheme 9, wherein first intake valve be operated based on Ai Jinsen circulation, and And second intake valve is operated based on Otto cycle.

The method as described in scheme 1 of scheme 11., in which:

The igniting of selected movable working cycles is related to based on what is selected in the operating room being ignited being that high torque is defeated Out or low torque output comes so that the operating room is exported with the high torque or low torque output igniting；

The operating room being each ignited includes the first intake valve and the second intake valve；

It, should come independent control based on high torque valve control program when the operating room being ignited is exported with high torque lights a fire The first intake valve and the second intake valve for the operating room being ignited；And

When the operating room being ignited is exported with low torque lights a fire, based on different from the low of the high torque valve control program Torque valve-controlled scheme processed and the first intake valve and the second intake valve of the independent control operating room being ignited.

Method of the scheme 12. as described in scheme 11, in which:

The high torque valve control program be related to during selected movable working cycles by air delivery pass through this One intake valve and the second intake valve；And

The low torque valve control program be related to not allowing during selected movable working cycles air pass through this One intake valve.

Method of the scheme 13. as described in scheme 11, in which:

The high torque valve control program be related to during selected movable working cycles by air delivery pass through this One intake valve and it is not passed through second intake valve；

The high torque valve control program is followed further to during the selected movable working cycles based on Otto Ring operates first intake valve；

The low torque valve control program be related to during selected movable working cycles by air delivery pass through this One intake valve and second intake valve；And

The low torque valve control program is followed further to during the selected movable working cycles based on Otto Ring runs first intake valve and during the selected movable working cycles based on intake valve late release (LIVC) Ai Jinsen circulation is to operate second intake valve.

The method as described in scheme 1 of scheme 14. further comprises:

Detect the pinking in the operating room of the engine；And

In response to the detection, it is desirable that one or more operating rooms are exported with the low torque without being come with high torque output Igniting；And

The engine is run in a manner of skipping igniting based on the requirement.

The method as described in scheme 1 of scheme 15. further comprises:

The condition of detection one of the following terms: 1) it vehicle deceleration and slides；And 2) stopped using starting/stopping feature The only engine；

Detect the engine torque having requested that；

It is operated in response to the detection, it is desirable that operating room selected by one or more is not exported with the high torque to light a fire；And And

The engine is run in a manner of skipping igniting based on the requirement.

The method as described in scheme 1 of scheme 16. further comprises:

Window is assigned to the target ignition opportunity of target operation room；

Determine selected in one or more operating rooms in the multiple operating room be high torque output or low torque Output；

The target operation room is lighted a fire in the window procedure；

Engine parameter is measured in the window procedure；And

Torque output determination and the engine parameter measurement are based at least partially on to determine whether there is engine Problem.

The method as described in scheme 1 of scheme 17., in which:

The engine includes the first subgroup of one or more operating rooms and the second son of one or more operating rooms Group；

Each operating room in first subgroup is arranged to selectively be ignited or deactivate；And

Each operating room in second subgroup be arranged to be ignited during each cycle of engine and It cannot be deactivated during engine operation.

The method as described in scheme 1 of scheme 18., in which:

The engine includes the one or more operating rooms that can respectively generate selected high torque output and low torque output The first subgroup；

The engine further comprises the one or more that can respectively generate selected high torque output and low torque output Second subgroup of operating room；And

It is the operating room being ignited from first subgroup rather than in second subgroup to select the high torque to export Or low torque output.

The method as described in scheme 1 of scheme 19., in which:

The low torsion is generated with one of operating room for being ignited described in substantially minimum Brake specific Fuel Consumption condition operation Square output.

The method as described in scheme 1 of scheme 20., in which:

Noise, vibration and sound vibration roughness (NVH) consideration is based at least partially on to select in the operating room being ignited Select high torque output or low torque output.

The method as described in scheme 1 of scheme 21. further comprises:

For selected the high torque export described in operating room's use for being ignited selected the low torque defeated than being directed to The higher air inlet amount in operating room being ignited out.

The method as described in scheme 1 of scheme 22. further comprises:

Based on the selection so that selected operating room is lighted a fire with high torque output；And

Based on the selection so that selected operating room is lighted a fire with low torque output, wherein the low torque exports igniting ratio High torque output igniting has more fuel efficiency.

The method as described in scheme 1 of scheme 23. further comprises:

The multiple candidate effectively igniting scores for delivering desired engine torque are determined, wherein each candidate effectively igniting Score is one or more values based on cylinder torque level and light a fire the ratio between number and ignition timing number；

The fuel efficiency of these candidate effectively igniting scores is compared；

Based on the comparison, selecting one in these candidate effectively igniting scores；And

The engine is run based on the selected effectively igniting score in these candidate effectively igniting scores.

The method as described in scheme 1 of scheme 24. further comprises:

The operating room being each ignited includes the first intake valve and first row air valve；And

First intake valve is activated by air delivery to the operating room being ignited, wherein the operating room being ignited First intake valve and the first row air valve be arranged so that during selected movable working cycles no matter when First intake valve is activated, also activates the first row air valve during the same selected movable working cycles.

The method as described in scheme 1 of scheme 25., wherein the intake valve and exhaust valve are cam-actuated.

The method as described in scheme 1 of scheme 26., wherein the engine is four cylinder engine.

The method as described in scheme 1 of scheme 27., in which:

Multiple operating room uses multiple and different valve actuation systems；And

Each valve actuation system can be different groups of one or more features, one be each characterized in the following terms : deactivate operating room；2) operating room is lighted a fire with low torque output；And it 3) is exported with the high torque by work Room igniting.

A kind of engine controller for including the engine of one or more operating rooms of scheme 28., each operating room Including one or more by cam-actuated intake valve, which includes:

Igniting interpolater, the igniting interpolater are arranged to for determining suitable for hair desired by delivering The igniting score of motivation torque；

Ignition timing determining module, the ignition timing determining module are arranged to for being determined based on the igniting score Ignition type igniting sequence is skipped, wherein this is skipped ignition type igniting sequence and indicates in selected ignition timing during institute It selects operating room to be deactivated or be ignited, and further indicates that, for igniting every time, which produces low torque output Or high torque output；And

Ignition control unit, the ignition control unit are arranged to for based on the side of the igniting sequence to skip igniting Formula runs the one or more operating room of the engine, and wherein the ignition control unit is further arranged for base It is intended that low torque output or high torque output adjust the quilt for the operating room being each ignited in the igniting sequence The air inlet amount of the operating room of igniting.

Engine controller of the scheme 29. as described in scheme 28, wherein the ignition timing determining module is arranged to be used for This is selected to skip ignition type igniting sequence from the library for skipping ignition type igniting sequence limited in advance.

Engine controller of the scheme 30. as described in scheme 28, wherein the ignition timing determining module is arranged to pass through This is generated using sigma delta converter skips ignition type igniting sequence.

Engine controller of the scheme 31. as described in scheme 28, wherein the ignition control unit is arranged to independently control Making multiple intake valves of selected operating room, ignition type igniting sequence is horizontal with high torque or low torque is horizontal to be skipped based on this Selected operating room is lighted a fire.

Engine controller of the scheme 32. as described in scheme 28, in which:

These operating rooms of the engine respectively include the first intake valve and the second intake valve；

The ignition control unit is further arranged to select during the movable working cycles selected by first Opens first intake valve and do not open second intake valve to property；And

The ignition control unit is further arranged to select during the movable working cycles selected by second First and second intake valve is opened to property, so that first air inlet during movable working cycles selected by second The closing of valve and the second intake valve and the timing of opening are different.

Engine controller of the scheme 33. as described in scheme 28, in which:

The ignition timing determining module is arranged to for being based on by ignition timing making igniting decision, each igniting Decision indicates that selected operating room is deactivated or is ignited during selected ignition timing；And it further indicates For each igniting, which generates low torque output or high torque output.

Engine controller of the scheme 34. as described in scheme 28, wherein the engine is four cylinder engine.

Engine controller of the scheme 35. as described in scheme 28, in which:

The one or more operating room uses multiple and different valve actuation systems；And

Each valve actuation system can be different groups of one or more features, one be each characterized in the following terms : deactivate operating room；2) operating room is lighted a fire with low torque output；And it 3) is exported with the high torque by work Room igniting.

A kind of engine system of scheme 36., comprising:

Inlet manifold；

First group of one or more operating room, each operating room in this first group include the first intake valve and second into Air valve；

So that at least two intake channels that the inlet manifold is connected with an operating room in first group of operating room, Wherein at least two intake channels are arranged so that these intake channels relative to this operating room in these operating rooms Each of intake channel central axial line phase of the central axial line substantially with this operating room in these operating rooms It hands over.

Engine system of the scheme 37. as described in scheme 36 further comprises:

First cam and the second cam, the first cam and the second cam are accordingly arranged to independently activate First intake valve and the second intake valve, wherein the engine system is arranged to be based on by working cycles independently activating Or first intake valve and the second intake valve are deactivated, and wherein each of first intake valve and second intake valve Independent actuation and deactivated help enable the operating room to generate high torque output or low torque output.

Engine system of the scheme 38. as described in scheme 37 further comprises:

Second group of one or more operating room, wherein each operating room in this second group cannot generate multiple and different water Flat torque output.

Engine system of the scheme 39. as described in scheme 37 further comprises:

Second group of one or more operating room, wherein fortune of each operating room in this second group in the engine system It cannot be deactivated during row.

Engine system of the scheme 40. as described in scheme 36 further comprises:

Engine, the engine include first group of one or more operating room, and wherein the engine is that four cylinders start Machine.

Engine system of the scheme 41. as described in scheme 36, in which:

The group one or more operating room uses multiple and different valve actuation systems；And

Each valve actuation system can be different groups of one or more features, one be each characterized in the following terms : deactivate operating room；2) operating room is lighted a fire with low torque output；And it 3) is exported with the high torque by work Room igniting.

A kind of method for controlling the operation of the internal combustion engine with multiple operating rooms of scheme 42., wherein each work Make room with by least one cam-actuated intake valve and have at least one exhaust valve, this method comprises:

The engine is run using the first igniting score；

The engine is run using the second igniting score for being different from the first igniting score；And

In transient process between the first igniting score and the second igniting score, ignition type point is skipped based on multistage Fiery sequence runs the engine, and wherein the multistage skips ignition type igniting sequence and indicates process in selected ignition timing In, selected operating room is deactivated or is ignited；And it further indicates and produces low torsion for igniting, the igniting every time Square output or high torque output.

Method of the scheme 43. as described in scheme 42, wherein this skip ignition type igniting sequence indicate it is multiple igniting determine Fixed, wherein these igniting, which determine to be each based on, by ignition timing makes.

Method of the scheme 44. as described in scheme 42 further comprises:

Ignition type igniting sequence is skipped based on the multistage to export with high torque output and low torque by selected operating room's point Fire；

Air inlet amount is adjusted by independently controlling respective at least two intake valve in operating room that these are ignited To generate high torque output and low torque output at the operating room that these are ignited.

Method of the scheme 45. as described in scheme 42 further comprises:

While using the first igniting score to run the engine, the hair is run based on first level score Motivation, wherein horizontal score help indicates that high torque output or low torque output igniting number are exported relative to including the high torque The ratio of the igniting sum including igniting number is exported with low torque；

While using the second igniting score to run the engine, the hair is run based on the second horizontal score Motivation；And

In transient process between the first igniting score and the second igniting score while running the engine, The engine is run based on the horizontal score different from least one of the following: 1) the first level score；And 2) second horizontal score.

Method of the scheme 46. as described in scheme 42, wherein based in the first igniting score and the second igniting score One is related to variable displacement operation to run the engine.

Method of the scheme 47. as described in scheme 42 further comprises:

Request of the detection to desired torque when based on the first igniting score to run the engine；

In response to the request, determine the second igniting score suitable for the delivering desired torque；

Transition based on the determination of the second igniting score, between the first igniting score and the second igniting score Automatically select score of lighting a fire among one or more in the process, wherein the multistage skip ignition type igniting sequence be based on this one A or multiple intermediate scores of lighting a fire；And

In the transient process, which is run based on igniting score among the one or more.

Method of the scheme 48. as described in scheme 47 further comprises:

The transition igniting score for running the engine in the transient process is gradually changed, wherein the multistage is skipped Ignition type igniting sequence is score of being lighted a fire based on the transition, and the rate of change of transition igniting score be based on one or Multiple engine parameters.

Method of the scheme 49. as described in scheme 48, wherein these engine parameters first is that absolute manifold pressure.

Method of the scheme 50. as described in any one of scheme 1-27, wherein by independently controlling these works being ignited Make at least two intake valves in room in each operating room adjust the air inlet amount so as to generate high torque output or it is low Torque output.

Method of the scheme 51. as described in scheme 1 or 50 further comprises:

The operating room being skipped is deactivated in the selected working cycle process being skipped, thus to prevent at these Air is pumped across these operating rooms being skipped in the selected working cycle process being skipped.

Method of the scheme 52. as described in any one of scheme 1,50 and 51, wherein all intake valves and exhaust valve be by The one or more cam protrusions actuating coupled with one or more camshafts.

Method of the scheme 53. as described in any one of scheme 1 and 50-52 further comprises:

Ignition type igniting sequence is skipped in generation, this is skipped ignition type igniting sequence and indicates current point for igniting every time Fire is related to exporting using high torque or low torque exports；And

Ignition type igniting sequence is skipped based on this to run the engine.

Method of the scheme 54. as described in any one of scheme 1 and 50-53 further comprises:

Determine horizontal score and igniting score, wherein horizontal score help indicates high torque output or low torque output Number light a fire relative to the ratio for exporting the igniting sum including lighting a fire number including high torque output and low torque；And

The engine is run in a manner of skipping igniting based on the horizontal score and the igniting score.

Method of the scheme 55. as described in any one of scheme 1 and 50-54, wherein at least in part with Sigma's moral Your tower converter come determine be in operating room that these are ignited high torque output or low torque output selection.

Method of the scheme 56. as described in any one of scheme 1 and 50-55, wherein high torque output or low torque are defeated Selection out is based on one or more of look-up table and state machine.

Method of the scheme 57. as described in any one of scheme 1 and 50-56, wherein these operating rooms respectively include first Intake valve and the second intake valve, this method further comprise:

When running the engine in a manner of skipping igniting and during selected working cycles, based on difference Timing recycle to open and close first intake valve and the second intake valve.

Method of the scheme 58. as described in scheme 57, wherein first intake valve is operated based on Ai Jinsen circulation, And second intake valve is operated based on Otto cycle.

Method of the scheme 59. as described in any one of scheme 1 and 50-58, in which:

What the igniting of selected movable working cycles was related to selecting in the operating room being ignited based on these is that high torque is defeated Out or low torque output comes so that these operating rooms are exported with the high torque or low torque output igniting；

The operating room being each ignited includes the first intake valve and the second intake valve；

It, should come independent control based on high torque valve control program when the operating room being ignited is exported with high torque lights a fire The first intake valve and the second intake valve for the operating room being ignited；And

When the operating room being ignited is exported with low torque lights a fire, based on different from the low of the high torque valve control program Torque valve-controlled scheme processed and the first intake valve and the second intake valve of the independent control operating room being ignited.

Method of the scheme 60. as described in scheme 59, in which:

The high torque valve control program is related to that air delivery is passed through first air inlet during selected working cycles Valve and the second intake valve；And

The low torque valve control program is related to that air is not allowed to pass through first air inlet during selected working cycles Valve.

Method of the scheme 61. as described in scheme 59, in which:

The high torque valve control program is related to that air delivery is passed through first air inlet during selected working cycles Valve and it is not passed through second intake valve；

The high torque valve control program is grasped further to during the selected working cycles based on Otto cycle Make first intake valve；

The low torque valve control program is related to that air delivery is passed through first air inlet during selected working cycles Valve and second intake valve；And

The low torque valve control program is transported further to during the selected working cycles based on Otto cycle Row first intake valve and during the selected working cycles based on intake valve late release (LIVC) Ai Jinsen recycle To operate second intake valve.

Method of the scheme 62. as described in any one of scheme 1 and 50-61 further comprises:

Detect the pinking in the operating room of the engine；And

In response to the detection, it is desirable that one or more operating rooms are exported with the low torque without being come with high torque output Igniting；And

The engine is run in a manner of skipping igniting based on the requirement.

Method of the scheme 63. as described in any one of scheme 1 and 50-62 further comprises:

The condition of detection one of the following terms: 1) it vehicle deceleration and slides；And 2) stopped using starting/stopping feature The only engine；

Detect the engine torque having requested that；

In response to these detection operations, it is desirable that operating room selected by one or more is not exported with the high torque to light a fire；And And

The engine is run in a manner of skipping igniting based on the requirement.

Method of the scheme 64. as described in any one of scheme 1 and 50-63 further comprises:

Window is assigned to the target ignition opportunity of target operation room；

Determine selected in one or more operating rooms in these operating rooms be high torque output or low torque it is defeated Out；

The target operation room is lighted a fire in the window procedure；

Engine parameter is measured in the window procedure；And

Torque output determination and the engine parameter measurement are based at least partially on to determine whether there is engine Problem.

Method of the scheme 65. as described in any one of scheme 1 and 50-64, in which:

The engine includes the first subgroup of one or more operating rooms and the second son of one or more operating rooms Group；

Each operating room in first subgroup is arranged to selectively be ignited or deactivate；And

Each operating room in second subgroup be arranged to be ignited during each cycle of engine and It cannot be deactivated during engine operation.

Method of the scheme 66. as described in any one of scheme 1 and 50-65, in which:

The engine includes the one or more operating rooms that can respectively generate selected high torque output and low torque output The first subgroup；

The engine further comprises the one or more that can respectively generate selected high torque output and low torque output Second subgroup of operating room；And

It is the operating room being ignited from first subgroup rather than in second subgroup to select the high torque to export Or low torque output.

Method of the scheme 67. as described in any one of scheme 1 and 50-66, in which:

One of operating room that these are ignited is run with substantially minimum Brake specific Fuel Consumption condition to generate the low torsion Square output.

Method of the scheme 68. as described in any one of scheme 1 and 50-67, in which:

Noise, vibration and sound vibration roughness (NVH) consideration is based at least partially on to select in the operating room that these are ignited Select high torque output or low torque output.

Method of the scheme 69. as described in any one of scheme 1 and 50-68 further comprises:

Select the low torque defeated than being directed to for these the operating room's uses being ignited for having selected the high torque to export The higher air inlet amount in these operating rooms being ignited out.

Method of the scheme 70. as described in any one of scheme 1 and 50-69 further comprises:

Based on the selection so that selected operating room is lighted a fire with high torque output；And

Based on the selection so that selected operating room is lighted a fire with low torque output, wherein the low torque exports igniting ratio High torque output igniting has more fuel efficiency.

Method of the scheme 71. as described in any one of scheme 1 and 50-70 further comprises:

The multiple candidate effectively igniting scores for delivering desired engine torque are determined, wherein each candidate effectively igniting Score is one or more values based on cylinder torque level and light a fire the ratio between number and ignition timing number；

The fuel efficiency of these candidate effectively igniting scores is compared；

Based on the comparison, selecting one in these candidate effectively igniting scores；And

The engine is run based on the selected effectively igniting score in these candidate effectively igniting scores.

Method of the scheme 72. as described in any one of scheme 1 and 50-71 further comprises:

The operating room being each ignited includes the first intake valve and first row air valve；And

First intake valve is activated by air delivery to the operating room being ignited, wherein the operating room being ignited First intake valve and the first row air valve be arranged so that during selected working cycles no matter when activate this First intake valve also activates the first row air valve during the same selected working cycles.

Method of the scheme 73. as described in any one of scheme 1 and 50-72, wherein the intake valve and exhaust valve are convex Wheel actuating.

Method of the scheme 74. as described in any one of scheme 1 and 50-73, wherein the engine is four cylinder engine.

Method of the scheme 75. as described in any one of scheme 1 and 50-74, in which:

Multiple operating room uses multiple and different valve actuation systems；And

Each valve actuation system can be different groups of one or more features, one be each characterized in the following terms : deactivate operating room；2) operating room is lighted a fire with low torque output；And it 3) is exported with the high torque by work Room igniting.

Engine controller of the scheme 76. as described in any one of scheme 28-35, wherein the ignition timing determining module It is arranged to for selecting this to skip ignition type igniting sequence from the library for skipping ignition type igniting sequence limited in advance.

Engine controller of the scheme 77. as described in scheme 28 or 76, wherein the ignition timing determining module is arranged to This is generated by using sigma delta converter skips ignition type igniting sequence.

Engine controller of the scheme 78. as described in any one of scheme 28 and 76-77, wherein the ignition control list Member is arranged to independently control multiple intake valves of selected operating room and is turned round to skip ignition type igniting sequence based on this with height Square is horizontal or low torque level lights a fire selected operating room.

Engine controller of the scheme 79. as described in any one of scheme 28 and 76-78, in which:

These operating rooms of the engine respectively include the first intake valve and the second intake valve；

The ignition control unit is further arranged to selectively beat during the working cycles selected by first It opens first intake valve and does not open second intake valve；And

The ignition control unit is further arranged to selectively beat during the working cycles selected by second First intake valve and the second intake valve are opened, so that first intake valve and during the working cycles selected by second The closing of two intake valves and the timing of opening are different.

Engine controller of the scheme 80. as described in any one of scheme 28 and 76-79, in which:

The ignition timing determining module is arranged to for being based on by ignition timing making igniting decision, each igniting Decision indicates that selected operating room is deactivated or is ignited during selected ignition timing；And it further indicates For each igniting, which generates low torque output or high torque output.

Engine controller of the scheme 81. as described in any one of scheme 28 and 76-80, wherein the engine is four Cylinder engine.

Engine controller of the scheme 82. as described in any one of scheme 28 and 76-81, in which:

The one or more operating room uses multiple and different valve actuation systems；And

Each valve actuation system can be different groups of one or more features, one be each characterized in the following terms : deactivate operating room；2) operating room is lighted a fire with low torque output；And it 3) is exported with the high torque by work Room igniting.

Engine system of the scheme 83. as described in any one of scheme 36-41 further comprises:

First cam and the second cam, the first cam and the second cam are accordingly arranged to independently activate First intake valve and the second intake valve, wherein the engine system is arranged to be based on by working cycles independently activating Or first intake valve and the second intake valve are deactivated, and wherein each of first intake valve and second intake valve Independent actuation and deactivated help enable the operating room to generate high torque output or low torque output.

Engine system of the scheme 84. as described in scheme 83 further comprises:

Second group of one or more operating room, wherein each operating room in this second group cannot generate multiple and different water Flat torque output.

Engine system of the scheme 85. as described in scheme 83 further comprises:

Second group of one or more operating room, wherein fortune of each operating room in this second group in the engine system It cannot be deactivated during row.

Engine system of the scheme 86. as described in any one of scheme 36 and 83-85 further comprises:

Engine, the engine include first group of one or more operating room, and wherein the engine is that four cylinders start Machine.

Engine system of the scheme 87. as described in any one of scheme 36 and 83-86, in which:

First group of one or more operating room uses multiple and different valve actuation systems；And

Each valve actuation system can be different groups of one or more features, one be each characterized in the following terms : deactivate operating room；2) operating room is lighted a fire with low torque output；And it 3) is exported with the high torque by work Room igniting.

Method of the scheme 88. as described in any one of scheme 42-49, wherein this is skipped ignition type igniting sequence and indicates Multiple igniting determine, wherein these igniting, which determine to be each based on, by ignition timing makes.

Method of the scheme 89. as described in scheme 42 or 88 further comprises:

Ignition type igniting sequence is skipped based on the multistage to export with high torque output and low torque by selected operating room's point Fire；

Air inlet amount is adjusted by independently controlling respective at least two intake valve in operating room that these are ignited To generate high torque output and low torque output at the operating room that these are ignited.

Method of the scheme 90. as described in any one of scheme 42 and 88-89 further comprises:

While using the first igniting score to run the engine, the hair is run based on first level score Motivation, wherein horizontal score help indicates high or low torque output igniting number relative to including high torque output and low torque The ratio of igniting sum including output igniting number；

While using the second igniting score to run the engine, the hair is run based on the second horizontal score Motivation；And

In transient process between the first igniting score and the second igniting score while running the engine, The engine is run based on the horizontal score different from least one of the following: 1) the first level score；And 2) second horizontal score.

Method of the scheme 91. as described in any one of scheme 42 and 88-90, wherein based on this first igniting score and One of the second igniting score is related to variable displacement operation to run the engine.

Method of the scheme 92. as described in any one of scheme 42 and 88-91 further comprises:

Request of the detection to desired torque when based on the first igniting score to run the engine；

In response to the request, determine the second igniting score suitable for the delivering desired torque；

Transition based on the determination of the second igniting score, between the first igniting score and the second igniting score Automatically select score of lighting a fire among one or more in the process, wherein the multistage skip ignition type igniting sequence be based on this one A or multiple intermediate scores of lighting a fire；And

In the transient process, which is run based on igniting score among the one or more.

Method of the scheme 93. as described in scheme 92 further comprises:

The transition igniting score for running the engine in the transient process is gradually changed, wherein the multistage is skipped Ignition type igniting sequence is score of being lighted a fire based on the transition, and the rate of change for crossing igniting score is based on one or more A engine parameter.

Method of the scheme 94. as described in scheme 93, wherein these engine parameters first is that absolute manifold pressure.

Although several embodiments of the present invention are described in detail, it is to be understood that, the present invention can be with many other Form is implemented without departing from the spirit or scope of the present invention.Term igniting score is referred to several times.It is to be understood that can Igniting score is expressed or indicated in a manner of diversified.For example, igniting score can take igniting pattern, sequence or Person is related to or inherently expresses the form of any other ignition Characteristics of above-mentioned igniting percentage.Term is also referred to several times " cylinder ".It should be understood that in a number of different embodiments, term cylinder is interpreted as broadly covering any suitable class The operating room of type.Engine can also use the technology for skipping igniting class, wherein being skipped and lighting a fire instead of cylinder, it is with low Torque or high torque output igniting are to run.In this control program, it is expressed as Dynamic ignition level modulation, cylinder is not It is skipped.In Dynamic ignition level modulation, the output of the cylinder being ignited is at skipping/ignition type pattern ground dynamic change. For example, specific cylinder can be fought sometimes with "high" or " higher " torque output level point and can sometimes with " low " or " compared with It is low " igniting of torque output level, correspond to and skip a little wherein " low " output level corresponds to " skipping " and "high" output level Igniting in fiery pattern.Therefore, the embodiment of the present invention should be considered illustrative and not restrictive, and the present invention It is not limited to these details given herein.

Claims (25)

1. a kind of method for delivering desired output for controlling the operation of the internal combustion engine with multiple operating rooms, In each operating room with by least one cam-actuated intake valve and have at least one exhaust valve, the multiple work Room includes first group of operating room and second group of operating room, and every group of operating room includes at least one operating room, wherein in first group Operating room is that operating room can deactivate and in second group cannot be deactivated in the operational process of the engine, this method Include:

By being ignited each operating room in described second group during each cycle of engine and making described first group In operating room be ignited and be skipped sometimes sometimes to run the engine to deliver desired engine output；With And

Based on high torque output or low torque output has been selected in each working cycles being ignited, it is ignited this is arranged The air inlet amount of working cycles.

2. the method as described in claim 1, wherein all operating rooms are arranged in a row.

3. method according to claim 2, wherein first group of operating room is at the first end and second end of a row Operating room.

4. method according to any one of claims 1 to 3, wherein the multiple operating room is four operating rooms.

5. method according to any one of claims 1 to 3, wherein being moved axially by camshaft so that different cams is prominent Portion is engaged with the air inlet valve lever of at least one intake valve to adjust air inlet amount out.

6. method as claimed in claim 5, wherein the different cam protrusion first is that zero promotes protruding portion, this zero is mentioned It rises protruding portion and effectively deactivates operating room associated there.

7. method according to any one of claims 1 to 3, comprising: adjustment engine is provided to ensure that delivered output It is matched with desired output.

8. the method for claim 7, wherein engine setting is selected from: spark timing, cam timing, discharge gas Recycling adjustment and throttle position.

9. a kind of method for delivering desired output for controlling the operation of the internal combustion engine with multiple operating rooms, In each operating room there is at least one intake valve and at least one exhaust valve, this method comprises:

The engine is run in a manner of skipping igniting, which is to skip the selected working cycles being skipped and make Selected working cycles igniting exports to deliver desired engine；And

Based on high torque output or low torque output has been selected in each working cycles being ignited, it is ignited adjusting this The air inlet amount of working cycles, in which:

The engine includes first group of one or more operating room and second group of one or more operating room；

Each operating room in described first group, which is arranged to, to be selectively ignited or is deactivated；And

Each operating room in described second group is ignited during being arranged in each cycle of engine, and is started described It cannot be deactivated in the operational process of machine.

10. method as claimed in claim 9, wherein at least one described intake valve is cam-actuated.

11. the method as described in claim 9 or 10, wherein all operating rooms are arranged in a row.

12. method as claimed in claim 11, wherein first group of operating room is the first end and second end positioned at a row The operating room at place.

13. the method as described in claim 9 or 10, wherein the multiple operating room is four operating rooms.

14. the method as described in claim 9 or 10, wherein moved axially by camshaft so that different cam protrusion with The air inlet valve lever of at least one intake valve engages to adjust air inlet amount.

15. method as claimed in claim 14, wherein the different cam protrusion first is that zero promotes protruding portion, this zero It promotes protruding portion and effectively deactivates operating room associated there.

16. the method as described in claim 9 or 10, comprising: adjustment engine is provided to ensure that delivered output and wishes The output of prestige matches.

17. the method described in claim 16, wherein engine setting is selected from: spark timing, cam timing, discharge gas Body recycling adjustment and throttle position.

18. a kind of engine controller for including the engine of multiple operating rooms, each operating room include one or more By cam-actuated intake valve, the multiple operating room is arranged to first group of operating room and second group of operating room, wherein

Each operating room in first group of operating room can be exported igniting with high torque, igniting is exported with low torque or is stopped With；And

Each operating room in second group of operating room is ignited during being arranged in each cycle of engine, and in institute Stating in the operational process of engine cannot be deactivated；

Wherein the high torque output igniting and low torque output igniting have different air inlet amounts, and by making cam Axis moves axially so that different cam protrusions and one or more of air inlet valve lever phases by cam-actuated intake valve Engagement is to adjust the air inlet amount.

19. engine controller as claimed in claim 18, wherein each operating room in second group of operating room can It exports igniting with high torque or is exported with low torque and light a fire.

20. the engine controller as described in claim 18 or 19, wherein the different cam protrusion is with different Lifting curve.

21. the engine controller as described in claim 18 or 19, wherein the multiple operating room is arranged in a row.

22. the engine controller as described in claim 18 or 19, wherein first group of operating room is positioned at the of a row Operating room at one end and second end.

23. the engine controller as described in claim 18 or 19, comprising: adjustment engine be provided to ensure that delivered it is defeated It is matched out with desired output.

24. engine controller as claimed in claim 23, wherein engine setting is selected from: spark timing, cam are just When, exhaust gas recirculation adjustment and throttle position.

25. the engine controller as described in claim 18 or 19, wherein the multiple operating room is four operating rooms.