CN103321812B - Engine start control system - Google Patents
Engine start control system Download PDFInfo
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- CN103321812B CN103321812B CN201310122250.8A CN201310122250A CN103321812B CN 103321812 B CN103321812 B CN 103321812B CN 201310122250 A CN201310122250 A CN 201310122250A CN 103321812 B CN103321812 B CN 103321812B
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- flywheel
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- gear ring
- engine start
- starter
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- 239000007858 starting material Substances 0.000 claims abstract description 53
- 230000001360 synchronised effect Effects 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 5
- 230000006870 function Effects 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 8
- 230000003068 static effect Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 244000144983 clutch Species 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000009993 protective function Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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- 238000005096 rolling process Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
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- Combined Controls Of Internal Combustion Engines (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention discloses a kind of engine start control system, comprising: Starter, startup power is provided; Start gear ring, connect described Starter, drive by described Starter and rotate; Flywheel, connecting engine; Overrunning clutch; be located between described startup gear ring and described flywheel; described overrunning clutch connects described startup gear ring and described flywheel; described startup gear ring is enable to drive described flywheel turns; engine start control system of the present invention; by the quick ato unit that driver's wish is in good time in engine shut down, startability and the ride comfort of vehicle can be improved.
Description
Technical field
The present invention relates to engine start technical field, particularly relate to a kind of engine start control system.
Background technique
When vehicle travels in city, due to avenue pedestrian and traffic density larger, starting and the parking of vehicle are very frequent, the most of energy that result in motor generation is starting frequently and is being consumed in modes such as frictional heats in braking process, cause vehicle oil consumption high, the problems such as wear and aging.On the other hand, in order to the object that can reach flexible braking, start fast, vehicle generally has idle state, but reality is when pedestrian and the larger environment middle rolling car of traffic density, the situation of stopping even for a long time in may existing, in short-term, makes motor need in the process to continue to be in idle state, causes the problems such as oil consumption waste and pollution, if but cancellation engine idle conditions can not accomplish quick startup again, this problem annoyings those skilled in the art always.
In order to alleviate the problems referred to above and comply with the social demand of energy-saving and emission-reduction, increasing vehicle is assembled with idle stop start up system at present, this system can make motor quit work when vehicle waits for red light or waiting, thus realize the object of fuel-economizing, reduction of discharging, but it does not solve root problem, the motor being equipped with the vehicle of this system still needs to stop frequently and start, and fast startability and ride comfort still lower.
Traditional engine starting system comprises Starter, starts gear ring and flywheel, startup ring gear against rotation is driven by small gear by Starter, and then flywheel driven rotates again, the quality of flywheel is much larger than small gear and start gear ring, flywheel connecting engine, when Speed of Reaction Wheels rises to predetermined value, engine ignition starts, Starter stops, and its small gear is separated with startup gear ring.Start up system is in engine shut down; the rotating speed of flywheel and startup gear ring declines gradually; because the quality of flywheel is larger; the small gear of Starter cannot engage with startup gear ring; otherwise can occur more serious to beat tooth phenomenon; cause equipment failure or scrap; that is; in engine shut down; Starter cannot be in good time startup power is provided, only after motor dead halt, just can restart and power is provided; this just causes the time lengthening that vehicle starts again, causes the startability of car load and ride comfort all to be had a greatly reduced quality.
In view of the foregoing, the design people borrows its technical experience of association area and abundant professional knowledge for many years, constantly researches and develops improvement, and through a large amount of practical proofs, proposes the technological scheme of engine start control system of the present invention.
Summary of the invention
The object of the present invention is to provide a kind of engine start control system, by the quick ato unit that driver's wish is in good time in engine shut down, startability and the ride comfort of vehicle can be improved.
To achieve these goals, the invention provides a kind of engine start control system, comprising: Starter, startup power is provided; Start gear ring, connect described Starter, drive by described Starter and rotate; Flywheel, connecting engine; Overrunning clutch, be located between described startup gear ring and described flywheel, described overrunning clutch connects described startup gear ring and described flywheel, enables described startup gear ring drive described flywheel turns.
Preferably, above-mentioned engine start control system, wherein, described Starter connects an electronic control unit, and described electronic control unit controls the action of described Starter.
Preferably, above-mentioned engine start control system, wherein, described electronic control unit is connected with a startup flip flop equipment, and described startup flip flop equipment is used for the controlling functions triggering described electronic control unit for driver's operation.
Preferably, above-mentioned engine start control system, wherein, described startup flip flop equipment is gas pedal.
Preferably, above-mentioned engine start control system, wherein, described startup gear ring is connected by small gear with between described Starter.
Preferably, above-mentioned engine start control system, wherein, described overrunning clutch comprises: outer shroud, be connected with described startup gear ring and can with its synchronous axial system; Inner ring, be connected with described flywheel and can with its synchronous axial system.
Preferably, above-mentioned engine start control system, wherein, also comprises a stoppage protection module, and cut off Starter starting circuit for shutting down end at motor, described stoppage protection model calling is also controlled by described electronic control unit.
Preferably, above-mentioned engine start control system, wherein, described stoppage protection module installation is in described electronic control unit.
Preferably; above-mentioned engine start control system; wherein; described flywheel is provided with crankshaft-position signal wheel; the cooperation of described crankshaft-position signal wheel is provided with crankshaft position sensor; described crankshaft position sensor connects described electronic control unit and transmits the tach signal of described flywheel to it, judges to trigger described stoppage protection module when described Speed of Reaction Wheels is less than a predetermined value for described electronic control unit.
Preferably, above-mentioned engine start control system, wherein, described predetermined value is more than or equal to 20 turns per minute and is less than or equal to 30 turns per minute.
Engine start control system of the present invention at least has the following advantages and feature:
1, engine start control system of the present invention sets up overrunning clutch between startup gear ring and flywheel; make to start gear ring can rotate by flywheel driven; and flywheel cannot drive startup gear ring to rotate; in engine shut down, Starter small gear engages with startup gear ring and can not occur to beat tooth phenomenon; thus quick ato unit in good time by driver's wish in engine shut down can be realized; again start after need not waiting for motor dead halt, significantly improve startability and the ride comfort of vehicle.
2, engine start control system of the present invention owing to having set up overrunning clutch between startup gear ring and flywheel; when engine start flywheel quick rotation; start gear ring can be static or rotate with the pole slow-speed of revolution; when motor is shut down; start gear ring can stop the rotator inertia of flywheel and reduce its reversal trend; realize the quick shutdown of motor, improve the shutdown performance of vehicle.
3, engine start control system of the present invention includes stoppage protection module; Starter circuit is cut off for shutting down end at motor; avoid Starter to start at this moment, and with the startup gear ring of unitary rotation and flywheel, tooth phenomenon occurs to beat, guard block is not damaged.
4, engine start control system of the present invention passes through the mating reaction of electronic control unit (ECU) and overrunning clutch rotational structure, make start up system under any circumstance all can not occur serious to beat tooth phenomenon, wearing and tearing between all parts are reduced, increases the service life.
5, engine start control system structure of the present invention is simple, and be the Curve guide impeller carried out in existing modular construction, cost is low, and applied widely, is suitable for promoteing the wider application.
Accompanying drawing explanation
Fig. 1 is engine start control system parts decomposition texture schematic diagram of the present invention;
Fig. 2 is engine start control system structure schematic front view of the present invention;
Fig. 3 is that schematic diagram is looked on an engine start control system structure left side of the present invention;
Fig. 4 is engine start control system structure schematic top plan view of the present invention.
Primary component label declaration:
1 Starter
11 electronic control units
111 stoppage protection modules
12 start flip flop equipment
2 start gear ring
21 small gears
3 flywheels
31 crankshaft-position signal wheels
32 crankshaft position sensors
4 overrunning clutchs
Embodiment
For making the object of the embodiment of the present invention, technological scheme and advantage clearly, below in conjunction with accompanying drawing, specific embodiment is described in detail.
Incorporated by reference to referring to figs. 1 to Fig. 4, wherein Fig. 1 is engine start control system parts decomposition texture schematic diagram of the present invention, Fig. 2 is engine start control system structure schematic front view of the present invention, Fig. 3 is that schematic diagram is looked on an engine start control system structure left side of the present invention, Fig. 4 is engine start control system structure schematic top plan view of the present invention, as shown in the figure, engine start control system of the present invention mainly comprises: Starter 1, provides startup power; Start gear ring 2, connect Starter 1, rotate by Starter 1 drives; Flywheel 3, is connected to motor; Overrunning clutch 4, be located at and start between gear ring 2 and flywheel 3, overrunning clutch 4 connects startup gear ring 2 and flywheel 3, and startup gear ring 2 can be rotated by flywheel driven 3.
Starter 1, for providing startup power, is the power source of whole start up system.Starter 1 can be connected with an electronic control unit 11, electronic control unit 11 for controlling the action of Starter 1, such as, by being switched on or switched off starting circuit to control startup and the shutdown of Starter.This electronic control unit 11 can connect again a startup flip flop equipment 12 further, and start flip flop equipment 12 for triggering the controlling functions starting or shut down for driver's operation, it can be arranged in the operator cabin of vehicle, so that driver's operation.This startup flip flop equipment 12 such as can be gas pedal; that is; gas pedal incorporates the startup Trigger Function of Starter; shut down in stage boot process at motor; controlled to judge by electronic control unit 11; even if pedal Starter 1 starts when stepping on the throttle, and when controlling to cut off starting-up later time by electronic control unit 11 after engine start success, improve operating efficiency and convenience.Certainly, the control of Starter 1 is not limited to the content described in above-described embodiment, utilizes the machinery type of other routines also can realize, and detail those skilled in the art can know by inference in conjunction with foregoing and routine techniques means, no longer describe in detail.
Start gear ring 2 be connected with Starter 1 and be driven by it, the structure and the function that start gear ring 2 have been prior art.Start gear ring 2 to be connected by small gear 21 with between Starter 1, Starter 1 driving pinion 21 rotates, and small gear 21 engages with startup gear ring 2, thus small gear 21 drives startup gear ring 2 to rotate.
Flywheel 3 is connected to motor, and the rotation of flywheel 3 will drive the rotation of motor, and when its rotating speed rises to predetermined value, motor just can ignition trigger.Flywheel 3 is existing part, and it has larger quality, and comparatively speaking, the quality starting gear ring 2 is then very little.About the concrete structure of flywheel 3 and be prior art with the continuous action relation of motor, repeat no more.
Overrunning clutch 4 is arranged at and starts between gear ring 2 and flywheel 3, is connected respectively with the two.The structure of overrunning clutch itself has been prior art, and its characteristic is can only transferring power in one rotational direction, and in the present invention, overrunning clutch 4 to make startup gear ring 2 flywheel driven 3 rotate.In particular, overrunning clutch 4 includes inner ring and outer shroud, in the present embodiment, in conjunction with reference to figure 1, outer shroud is connected with startup gear ring 2 and can with its synchronous axial system, inner ring be connected with flywheel 3 also can with its synchronous axial system, thus the unidirectional flywheel driven 3 of realization startup gear ring 2 rotates, that is, when starting gear ring 2 rotating speed and being greater than flywheel 3, starting gear ring 2 can rotate by flywheel driven 3 together; When flywheel 3 rotating speed be greater than start gear ring 2 time, flywheel 3 can rotate alone, and starts gear ring 2 and can keep static, or by the impact of the frictional force between part fits etc. with extremely low rotational speed, starting gear ring 2 can not with flywheel 3 High Rotation Speed.
Certainly, in the structural design of other embodiments, the outer shroud that also can be overrunning clutch is connected with flywheel 3, and inner ring is connected with startup gear ring 2, can realize single-direction transmission equally, those skilled in the art accommodation can learn that its concrete structure designs easily, therefore no longer illustrate.
Preferred further, engine start control system of the present invention also can comprise a stoppage protection module 111, cutting off Starter starting circuit, avoiding Starter 1 to start at this moment for shutting down end at motor.At the end of engine shut down, flywheel 3 will be combined as a whole with startup gear ring 2, and together rotate, although its rotational velocity is not high, but because the quality of flywheel 3 is larger, make flywheel 3 larger with the rotary inertia of the combination starting gear ring 2, if now start Starter 1, go with small gear 21 and start gear ring 2 and engage, serious for generation is beaten tooth phenomenon, make small gear 21 or start gear ring 2 to be damaged, cut off the starting circuit of Starter and can effectively avoid Starter to start at this moment so stoppage protection module 111 shuts down end at motor and occur above-mentioned to beat tooth phenomenon.This stoppage protection module 111 connects and is controlled by electronic control unit 11, preferably can be arranged in electronic control unit 11, and is acted on according to set program triggering stoppage protection module 111 by electronic control unit 11.Specifically; electronic control unit 11 is according to the rotating speed of flywheel 3; the namely rotating speed of motor; judge whether motor is in shutdown end; rotating speed due to flywheel is final stopping that declining gradually, so can judge that motor is in shutdown end when the rotating speed of flywheel 3 is less than a predetermined value, triggers stoppage protection module 111; this predetermined value is in general less, is less than or equal to total 30 turns of per minute as being more than or equal to 20 turns per minute.The rotating speed detecting flywheel 3 is by crankshaft-position signal wheel 31 that flywheel 3 is arranged and take turns 31 crankshaft position sensors be equipped with 32 with crankshaft-position signal and come, as shown in Figure 1, crankshaft-position signal wheel 31 and crankshaft position sensor 32 are existing component, the two is for detecting the rotating speed of flywheel 3 (i.e. motor), the structure and working principle that is connected about crankshaft-position signal wheel 31 and crankshaft position sensor 32 has been prior art, does not repeat them here.Crankshaft position sensor 32 connects electronic control unit 11; the tach signal of flywheel 3 is transmitted to electronic control unit 11; electronic control unit 11 triggers stoppage protection module 111 when judging that motor is in and shuts down end according to tach signal; make it cut off Starter starting circuit, thus avoid Starter to start.
More than be the structure composition of engine start control system of the present invention, the working principle of engine start control system of the present invention be described below in conjunction with each accompanying drawing:
Motor is from the process of static normal startup: electronic control unit 11 controls the energising of Starter starting-up later time, the action of Starter magnetic switch, the small gear 21 stirring Starter 1 engages with startup gear ring 2, small gear 21 drives startup gear ring 2 to rotate, and then by overrunning clutch 4, flywheel driven 3 rotates, final ato unit; When after engine start, starting-up later time power-off, the small gear 21 of Starter 1 resets, depart from and the engagement starting gear ring 2, flywheel 3 rotates with high engine speeds, but due to the single-direction transmission characteristic of overrunning clutch 4, startup gear ring 2 is static or rotate with extremely low speed, and can not with flywheel 3 High Rotation Speed.
Stage boot process shut down by motor: motor is shut down, flywheel 3 rotating speed declines naturally gradually, if driver thinks again to start in stopping process, can lead to and start flip flop equipment 12 triggerable electronic control unit 11, and then electronic control unit 11 connects starting-up later time immediately, static or rotate with extremely low speed owing to now starting gear ring 2, therefore small gear 21 can engage with startup gear ring 1 smoothly, can't occur to beat tooth phenomenon, again by the transmission of overrunning clutch 2, flywheel driven 3 accelerates to rotate, thus by the instant ato unit again of driver's wish, improve startability and the ride comfort of vehicle.
Motor quick shutdown process: from the above mentioned, under the effect of overrunning clutch 2, startup gear ring 1 is static or rotate with extremely low speed, at shutdown end, when flywheel 3 rotating speed is reduced to very little, flywheel 3 and startup gear ring 1 will be combined as a whole, and under the impact of part fits frictional force etc., flywheel 3 will stop operating fast; On the other hand, when flywheel 3 is when shutting down end and reversion occurring, starts the reversal trend that gear ring 1 also can play interception or reduce flywheel 3, thus stop engine running fast, realize motor quick shutdown.
Stoppage protection process: shut down end at motor, flywheel 3 and start gear ring 2 and to be combined as a whole rotations, and may reversal trend be had, if now starting-up later time closes, then the small gear 21 that can there is Starter 1 engages the problem of dozen tooth with startup gear ring 2.For avoiding this problem; when electronic control unit 11 judges engine speed lower than predetermined value according to the rotary speed detecting signal of crankshaft position sensor 32, trigger stoppage protection module 111, make it cut off Starter starting circuit; thus avoid Starter to start, realize protective function.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. an engine start control system, is characterized in that, comprising:
Starter (1), provides startup power;
Start gear ring (2), connect described Starter, drive by described Starter and rotate;
Flywheel (3), connecting engine;
Overrunning clutch (4), be located between described startup gear ring and described flywheel, described overrunning clutch connects described startup gear ring and described flywheel, enables described startup gear ring drive described flywheel turns.
2. engine start control system according to claim 1, is characterized in that, described Starter connects an electronic control unit (11), and described electronic control unit controls the action of described Starter.
3. engine start control system according to claim 2, it is characterized in that, described electronic control unit is connected with a startup flip flop equipment (12), and described startup flip flop equipment is used for the controlling functions triggering described electronic control unit for driver's operation.
4. engine start control system according to claim 3, is characterized in that, described startup flip flop equipment is gas pedal.
5. engine start control system according to claim 1, is characterized in that, described startup gear ring is connected by small gear (21) with between described Starter.
6. engine start control system according to claim 1, is characterized in that, described overrunning clutch comprises:
Outer shroud, be connected with described startup gear ring and can with its synchronous axial system;
Inner ring, be connected with described flywheel and can with its synchronous axial system.
7. engine start control system according to claim 2; it is characterized in that; also comprise a stoppage protection module (111), cut off Starter starting circuit for shutting down end at motor, described stoppage protection model calling is also controlled by described electronic control unit.
8. engine start control system according to claim 7, is characterized in that, described stoppage protection module installation is in described electronic control unit.
9. engine start control system according to claim 7; it is characterized in that; described flywheel is provided with crankshaft-position signal wheel (31); the cooperation of described crankshaft-position signal wheel is provided with crankshaft position sensor (32); described crankshaft position sensor connects described electronic control unit and transmits the tach signal of described flywheel to it, judges to trigger described stoppage protection module when described Speed of Reaction Wheels is less than a predetermined value for described electronic control unit.
10. engine start control system according to claim 9, is characterized in that, described predetermined value is more than or equal to 20 turns per minute and is less than or equal to 30 turns per minute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310122250.8A CN103321812B (en) | 2013-04-09 | 2013-04-09 | Engine start control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310122250.8A CN103321812B (en) | 2013-04-09 | 2013-04-09 | Engine start control system |
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| Publication Number | Publication Date |
|---|---|
| CN103321812A CN103321812A (en) | 2013-09-25 |
| CN103321812B true CN103321812B (en) | 2016-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310122250.8A Active CN103321812B (en) | 2013-04-09 | 2013-04-09 | Engine start control system |
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| CN (1) | CN103321812B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101858292A (en) * | 2009-04-02 | 2010-10-13 | 株式会社电装 | Be installed in the starter motor on the vehicle with idling stop device |
| CN102770662A (en) * | 2010-03-02 | 2012-11-07 | 日立汽车系统株式会社 | Starter |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4237150B2 (en) * | 2005-02-21 | 2009-03-11 | 川崎重工業株式会社 | Signal detection device for vehicle engine |
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2013
- 2013-04-09 CN CN201310122250.8A patent/CN103321812B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101858292A (en) * | 2009-04-02 | 2010-10-13 | 株式会社电装 | Be installed in the starter motor on the vehicle with idling stop device |
| CN102770662A (en) * | 2010-03-02 | 2012-11-07 | 日立汽车系统株式会社 | Starter |
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| Publication number | Publication date |
|---|---|
| CN103321812A (en) | 2013-09-25 |
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