CN102729971A - Brake system for automobile and method for operating automobile brake system - Google Patents
Brake system for automobile and method for operating automobile brake system Download PDFInfo
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- CN102729971A CN102729971A CN2012101743905A CN201210174390A CN102729971A CN 102729971 A CN102729971 A CN 102729971A CN 2012101743905 A CN2012101743905 A CN 2012101743905A CN 201210174390 A CN201210174390 A CN 201210174390A CN 102729971 A CN102729971 A CN 102729971A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
- B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
- B60T8/44—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition co-operating with a power-assist booster means associated with a master cylinder for controlling the release and reapplication of brake pressure through an interaction with the power assist device, i.e. open systems
- B60T8/441—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition co-operating with a power-assist booster means associated with a master cylinder for controlling the release and reapplication of brake pressure through an interaction with the power assist device, i.e. open systems using hydraulic boosters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/12—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid
- B60T13/16—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid using pumps directly, i.e. without interposition of accumulators or reservoirs
- B60T13/161—Systems with master cylinder
- B60T13/165—Master cylinder integrated or hydraulically coupled with booster
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Regulating Braking Force (AREA)
Abstract
本发明公开了汽车的制动系统，具有：主制动缸(10)，泵装置(16)，制动液借助该泵装置(16)从制动液容器(14)抽吸入储存容积(18)，储存容积(18)的总容积可以增大；排出阀(24)，制动液流体借助于该排出阀(24)从储存容积(18)中控制进入制动液容器(14)中，储存容积(18)的总容积可以减小；弹簧装置(28)；弹簧装置(28)可通过增大储存容积(18)的总容积抵着其弹力压缩，通过减小储存容积(18)的总容积激活该弹簧装置(28)的膨胀，弹簧装置(28)膨胀时的弹力可传递给主制动缸-活塞(97)，主制动缸-活塞(97)借助弹力至少部分调节至内室中。本发明还公开了运行汽车制动系统的方法。
The invention discloses a brake system for an automobile, comprising: a master brake cylinder (10), a pump device (16), by means of which brake fluid is pumped from a brake fluid container (14) into a storage volume ( 18), the total volume of the storage volume (18) can be increased; the discharge valve (24), the brake fluid fluid is controlled from the storage volume (18) into the brake fluid container (14) by means of the discharge valve (24) , the total volume of the storage volume (18) can be reduced; the spring device (28); the spring device (28) can resist its elastic compression by increasing the total volume of the storage volume (18), by reducing The total volume of the spring device (28) activates the expansion of the spring device (28), and the elastic force when the spring device (28) expands can be transmitted to the master brake cylinder-piston (97), and the master brake cylinder-piston (97) is at least partially adjusted to In the inner room. The invention also discloses a method for operating the brake system of the automobile.
Description
Technical field
The present invention relates to the brake system of automobile.In addition, the invention still further relates to the method for operation brake system of car.
Background technology
Document us US 6 149 248 A disclose the brake system that has brake servo unit, and this brake servo unit is connected with the brake pedal with main brake cylinder.Through the operation brake pedal, the power that the piston of brake servo unit can support spring moves towards main brake cylinder.In addition, brake servo unit has at least one volumes that braking liquid is housed (Volumen), and wherein the suction to volumes inside brake liquid produces additional power, and the power that piston can support spring by means of this power moves towards main brake cylinder.
Summary of the invention
The present invention provides the auto brake system with the said characteristic of claim 1 to unify to have the method for the operation brake system of car of claim 14 said characteristics.
Advantage of the present invention
By means of foundation brake system of the present invention and corresponding method, the elastic force of the spring installation of expansion can be used for being used for regulating the inner room that main brake cylinder-piston makes it at least partly to get into main brake cylinder.By means of the present invention, under the situation of not using vacuum brake assistor, can apply power to increase the internal pressure in the inner room thus to main brake cylinder-piston.So just do not need to be equipped with brake servo unit, and the place near the steps brake servo unit generally needs vacuum as energy source to automobile.Through this mode, need not produce vacuum with the operation brake servo unit yet.Compare with brake system, have higher durability according to brake system of the present invention, and manufacturing cost is more cheap with vacuum brake assistor and vacuum source.
Another advantage according to brake system of the present invention and the method that matches is, uses pumping plant only to be used for compression/preloading spring device.When the elastic force of the spring installation that passes through to expand is regulated main brake cylinder-piston with formation pressure in inner room, do not need the process pump device like this.Driver's operation brake operating parts (for example brake pedal) are when requiring in the inner room to produce pressure like this; Chaufeur need not bear that the recoil that caused by pumping plant/because the vibrations of the brake operating parts that pumping plant produces, this is because pumping plant can be in unactivated state in this operational mode.Therefore; With respect to traditional brake system (in this brake system; During operation brake operating parts, the process pump device with packed space to increase braking force), the operation comfort when brake system described herein guarantees operation brake operating parts with corresponding method.In addition,, for example be used for unexpected braking for high dynamic ground increases pressure, and/or actv. formation pressure, especially under the situation that does not have the chaufeur braking force, can use the mode of pump supply.Realized additional power support like this from the pressure spring accumulator.
In a favourable embodiment; This brake system is added has a flip flop equipment; By means of this flip flop equipment; At least one manipulation value by the relevant operation brake operating parts that sensor provides can be received by automobile driver, can under the situation of the manipulation value of considering reception at least, confirm relevant be applied to the specified bearing force on main brake cylinder-piston and/or be delivered to the rated value of the braking liquid volume of braking liquid memory device from least one storage volumes by means of spring installation, and; Discharge-service valve can so trigger by means of control signal, promptly can on main brake cylinder-piston, apply and the corresponding elastic force of definite rated value by means of the spring installation that expands.Chaufeur can be confirmed/adjust to be applied to the bearing force on main brake cylinder-piston according to the operation of braking input block thus.Especially can confirm/the adjustment bearing force according to the braking force of chaufeur and/or the adjustment travel of brake operating parts.Guaranteed and the right mutually bearing force of chaufeur braking hope according to brake system of the present invention like this.Rated value for example can be the adjusting form of treating of time of opening and/or the discharge-service valve that is used for special time period.Bearing force also can be corresponding to the zero big or small power that meets rated value.
Equally; Can so on brake system, can fixedly install/fixedly install the brake operating parts; So that brake system when operation, the brake operating parts so link to each other with main brake cylinder-piston, and the chaufeur braking force that is applied to like this on the brake operating parts can pass to main brake cylinder-piston.Replenish like this and be applied to the elastic force on the chaufeur braking force, be used to regulate main brake cylinder-piston and make it to get at least in part inner room as bearing force.Chaufeur also can directly be braked main brake cylinder thus.This mode guarantees the return movement plane (minimum delay) that meets the legal requirements, especially under the situation that power supply stops.
This brake system can for example be added and comprised a piston that limits at least one storage volumes; When spring installation expands; Elastic force can pass to this piston, and this piston so links to each other with main brake cylinder-piston, to such an extent as to elastic force can pass to main brake cylinder-piston through this piston.Through this mode, can realize that at least one storage volumes that spring installation and its total volume increase or reduce concurs with mode easy and with low cost.
Additionally, the piston that limits at least one storage volumes is fixedly installed on the lever apparatus, and the brake operating parts that are arranged on the brake system link together through this lever apparatus and main brake cylinder-piston.The chaufeur braking force that is applied on the brake operating parts can be delivered on main brake cylinder-piston through lever apparatus in the case.In addition, also can elastic force be delivered on main brake cylinder-piston easy way reliably through piston.
In can the embodiment of simple realization, the piston between storage volumes and the spring housing can be set together with the spring installation that is supported on the piston.In the case, the piston-cylinder--unit with piston, unique storage volumes and spring housing requires less structure space, has only relative less weight.
In can be used as the embodiment of replacement; Piston can be arranged between first storage volumes and second storage volumes; Two storage volumes interconnect through equalizing valve, although wherein equalizing valve is closed, the braking flow still flows into the braking liquid reservoir vessel from first storage volumes through being controlled to the discharge-service valve that partially opens state at least; And because equalizing valve is closed, the braking flow can not flow into the braking liquid reservoir vessel through being in the discharge-service valve that partially opens state at least from second storage volumes.If for brake system is equipped with two storage volumes; And storage volumes receives the restriction of therebetween piston; Then first storage volumes can be used for triggering the expansion of spring, and second storage volumes (the brake operating parts being adjusted back to reference position with this) that is used for pressure between two storage volumes of balance guarantees under the situation that spring installation remains unchanged, to be in the still state of part compression after its operation.
At this, first storage volumes or second storage volumes can additionally receive the restriction of spring housing's piston, are arranged on the indoor spring installation of adjacent springs and are supported on this spring housing's piston." restriction " here can be regarded as piston especially and so is arranged on the corresponding volume, thereby adjusts the piston change or influence volume size.In the case, two storage volumes, piston, spring housing's pistons and the spring housing that has a spring installation can be arranged in piston-cylinder--unit.
In can be used as the embodiment of replacement; Except that first piston-cylinder body-unit with first storage volumes and second storage volumes; Brake system can have second piston-cylinder--unit; Wherein second piston-cylinder--unit has the spring housing that receives the restriction of adjustable intermediate piston, this spring housing have the spring installation that is supported on this intermediate piston with receive that this intermediate piston limits equally and with the second storage volumes hydraulic pressure bonded assembly pressure chamber.If, then need not use piston-cylinder--unit with big relatively (longitudinally) size for brake system is equipped with two piston-cylinder--unit.Through this mode, it is more compact that brake system can be constructed ground.Spring housing also can be regarded as device that is similar to spring or the container that is used for this.The pressure chamber can link to each other with second storage volumes through hydraulic control unit and/or at least one valve.
In favourable improvement project; Brake system can comprise that at least one wheel gets into valve; Braking liquid stream through this wheel get into valve can from the main brake cylinder body regulate and control at least one can hydraulic pressure bonded assembly wheel brake caliper; And/or at least one wheel discharge-service valve, braking liquid stream can be from these liquid bonded assembly wheel brake caliper regulation and control to braking the medium reservoir vessel through this wheel discharge-service valve.Brake system described herein can be equipped with the brake circuit of different structural forms thus.
In addition; Brake system additionally comprises at least one wheel pressure charging valve, and braking liquid stream can be regulated and control at least one hydraulic pressure bonded assembly wheel brake caliper under the situation of main brake cylinder body that detours from the conveyor side of pumping plant and/or the pressure chamber of second piston-cylinder--unit through this wheel pressure charging valve.The pumping plant that is used for compression spring device thus also can be used for pouring into specially at least one wheel brake caliper.The elastic force of the spring installation that especially expands also can be used for regulating specially the brake-pressure of at least one wheel brake caliper.The energy converter of such pumping plant (electro-motor) not only can be used for compression/precompressed/preloading spring device, also can be used at least one wheel brake caliper, setting up the brake-pressure of expectation.Energy conversion unit thus, the electro-motor in having the unit of hydraulic pump unit for example, compressible, precompressed and/or pretension hydraulic pressure storage element (spring installation).In the case; Energy conversion unit and storage element preferably constitute a hydraulic pressure feed unit; This hydraulic pressure feed unit is used on the one hand and directly improves pressure at least one wheel brake caliper, also can at least one wheel brake caliper, improve pressure indirectly through piston/supply chamber system on the other hand.
In an advantageous embodiments, braking system architecture is the single-piece brake system, and this brake system has a housing that comprises the brake system assembly, and this housing can be fixedly installed in the vehicle.Wheel brake caliper can be arranged on outside.For example can tighten, weld or paste at the vehicle upper shell.The transportation that guarantees brake system thus is easy and installation brake system in vehicle easy.
Spring installation can comprise the material of at least one spring and/or a kind of resiliency compressible.For example spring installation can maybe be lower in the poly-mer
so the manufacturing cost of spring installation of a system that is made up of a plurality of springs and/or a resiliency compressible.
Also can guarantee that above-mentioned paragraph describes the realization of advantage through a corresponding method.Particularly this method can comprise the additivity step: the operating value that draws operation brake operating parts through the chaufeur of vehicle; Under the situation of considering the manipulation value, confirm to be applied to the specified bearing force on main brake cylinder-piston and/or to be sent to the rated value of the braking liquid body bulk of braking liquid reservoir vessel from least one storage volumes by means of spring installation; With the triggering discharge-service valve; The braking flow is regulated and control to the braking liquid reservoir vessel from least one storage volumes by means of this discharge-service valve; Under the situation of the rated value of considering to confirm, on main brake cylinder-piston, apply the elastic force that conforms to the rated value of confirming by means of open spring installation.Can provide the bearing force that is complementary with chaufeur braking expection as elastic force through the method like this.Can adjust piston stroke and adjust pedal stroke thus through the control volume simultaneously.
Thus especially, the present invention also can realize a method with under the situation that weakens the braking force reinforcement, keep stored spring can, cancel the braking force of chaufeur and/or make brake pedal/pull bar reposition.Can realize this method in the following manner; When just closing discharge-service valve; Rate of volume flow appears in the throttle compensating valve through partially opening at least, and this rate of volume flow is because the action of the spring of one or more wheel brake calipers or coalignment makes brake pedal/pull bar reposition.At this, the bearing force that remains unchanged can change through throttle compensating valve on the basis of whole rate of volume flow.
Description of drawings
Further specify other features and advantages of the present invention through accompanying drawing below, wherein diagram:
Fig. 1: the scheme drawing of brake system first embodiment
Fig. 2 A to 2D: the scheme drawing of brake system second embodiment;
Fig. 3: the scheme drawing of brake system the 3rd embodiment;
Fig. 4: the scheme drawing of brake system the 4th embodiment;
Fig. 5 A to 5B: the scheme drawing of brake system the 5th embodiment, wherein Fig. 5 B is the partial view of Fig. 5 A.
The specific embodiment
Fig. 1 illustrates first embodiment of brake system.
The brake system that Fig. 1 schematically shows has main brake cylinder 10, and it has (at least) main brake cylinder piston from (not shown) to (at least) inner room of main brake cylinder 10 that at least partly regulate.Main brake cylinder 10 is not limited to the configuration that only has a main brake cylinder piston.For example main brake cylinder 10 also can be used as double piston brake cylinder and has two adjustable main brake cylinder-pistons, and these two main brake cylinders-piston respectively can inside indoor adjusting.Main brake cylinder 10 can be connected with brake fluid tank 14 (braking media Containers) through at least one hydraulic connectors 12.
Can on main brake cylinder 10, connect the brake circuit that at least one has at least one wheel brake caliper (wheel braking cylinder).Since this brake system that further specifies can with many dissimilar brake circuit combineds action, therefore be not described further the structure that is arranged on the brake circuit on the main brake cylinder 10 by means of input channel 11 here.
Brake system also has pumping plant 16, pump for example, and braking liquid can be pumped at least one storage volumes 18 from brake fluid tank 14 by this pumping plant 16.Can be connected with brake fluid tank 14 hydraulic pressure through upstream line 20 this pumping plant 16, and be connected with storage volumes 18 hydraulic pressure through delivery duct 22.At least one storage volumes 18 is so constructed, that is, through getting at least one storage volumes 18 from brake fluid tank 14 suction brakings liquid, the total volume of at least one storage volumes 18 can increase.
In addition, brake system has discharge-service valve 24, but the braking flow gets into brake fluid tank 14 by means of these discharge-service valve 24 Be Controlled from least one storage volumes 18, and the total volume of at least one storage volumes 18 can reduce like this.To this, can be controlled to the discharge-service valve 24 that partially opens at least in the state and can be arranged on reflux line 26 inside, this reflux line 26 couples together at least one storage volumes 18 with brake fluid tank 14.
Brake system also has spring installation 28, and this spring installation 28 so is provided with, and makes spring installation 28 can overcome the elastic force compression through the total volume that increases at least one storage volumes 18.In addition, because the setting of spring installation 28 can excite the expansion of spring installation 28 through the total volume that reduces at least one storage volumes 18.In addition, spring installation 28 is set so, the elastic force when spring installation 28 is expanded can pass at least one main brake cylinder-piston.By means of the elastic force of the spring installation 28 that expands, at least one main brake cylinder-piston can part inwardly be adjusted in the associated inner room at least thus.Therefore, by means of the elastic force of the spring installation 28 that expands, the pressure at least one inner room of main brake cylinder 10 can increase.Spring installation 28 can replace traditional brake servo unit, especially vacuum brake assistor thus.Need not give the automobile additional configuration vacuum source that is equipped with brake system thus.
Can braking system architecture be used for and brake operating parts 30 (for example brake pedal) combined action.Especially, in brake system is installed in automobile after, these brake operating parts 30 can be fixedly installed on the brake system through the installation steps that can simply implement.In the favourable embodiment of explanation, brake operating parts 30 are connected with main brake cylinder-piston when brake system is moved herein, and the chaufeur braking force that is applied to like this on the brake operating parts 30 can pass to main brake cylinder-piston.This can realize that promptly brake operating parts 30 especially through piston rod, are connected with main brake cylinder-piston through lever apparatus 32 through for example following mode.Chaufeur so can be through operation brake operating parts 30 directly to main brake cylinder 10 inside brakes.But what indicate is that brake system described herein is not limited to uses brake operating parts 30 directly to brake in the main brake cylinder 10.In other words, describe in detail, can use with the elastic force of operating brake operating parts 30 corresponding spring installations 28 following of the situation that does not have the chaufeur braking force to increase the pressure at least one inner room like hereinafter.Brake system described herein also can realize in the embodiment that has brake operating parts 30 that break away from fully with main brake cylinder 10 thus.Equally, brake system can with the for example ACC system combined action of an automatic speed control system.
Brake system preferably has flip flop equipment 34, by means of this device, can receive the manipulation value 38 of the relevant driver's operation brake operating parts 30 that provided by sensor 36 at least.Sensor 36 especially can be the parts of brake system.Preferred mode is that sensor 36 is braking force sensor and/or braking distance sensor.But the constructibility of at least one sensor 36 is not limited to cited embodiment.Especially, at least one sensor 36 can be arranged on brake operating parts 30 or the lever apparatus 32.
In addition, flip flop equipment 24 can so replenish setting, promptly confirming that by means of the manipulation value that provides 38 brake operating parts 30 are under the situation of its reference position, sends activation signal 42 is in the demi-inflation state with compression spring installation 28 to pumping plant 16.Can guarantee chaufeur thus when operating brake operating parts 30, not realize through pumping plant 16 operations to be created in the recoil on the brake operating parts 30.This advantage can realize, because in the brake system of describing herein, pumping plant 16 only is used for compression/preloading spring device 28, rather than directly power is applied at least one main brake cylinder-piston.Do not influence comfort level like this, and in some traditional braking mode, when directly increasing the pressure in main brake cylinder 10 inner rooms by means of traditional braking servo-unit-pump, comfortable situation possibly exert an influence.Can also use other hydraulic efficiency gear, for example (unshowned) throttling-buffer system for this reason.
Be the combined action that guarantees that spring installation 28 and at least one storage volumes 18 are favourable, brake system can additionally have a piston 44 that limits at least one storage volumes 18, and the elastic force when spring installation 28 expands can pass to this piston 44." restriction " is appreciated that to piston so is arranged on the volume especially, that is, adjusting piston changes or influence the size of volume.Piston 44 so is connected with main brake cylinder-piston with advantageous manner, and elastic force can be applied on main brake cylinder-piston through piston 44 like this.Particularly this piston 44 can be fixedly installed on the lever apparatus 32.In this way, can realize with easy way through the lever apparatus 32 common elastic force and the chaufeur braking forces of emitting that transmit.
If the piston 44 that is fixed on the lever apparatus 32 together is provided with as adjustable parts of the auxiliary cylinders 46 between storage volumes 18 and the spring housing 48 and the spring installation 28 that is supported on the piston 44, so for example guarantee to realize at least one storage volumes 18 and the favourable combined action of spring installation 28 through piston 44.In the case, brake system only has a storage volumes 18.(can be regarded as so by means of piston portion restriction volume or chamber piston portion is arranged on volume or the chamber; Cause the volume of chamber or volume to increase so that promote piston portion, and cause the volume of chamber or volume to dwindle to the second direction adjusting opposite piston portion with first direction towards first direction.)
Fig. 2 A to 2D illustrates the scheme drawing of second embodiment of this brake system.
Brake system shown in Fig. 2 A to 2D has the parts of having explained 10,14,20 to 32 and 44.The place near the steps brake system also can be equipped with flip flop equipment.
Different with above-mentioned illustrated example, this brake system has the first storage volumes 18a and the second storage volumes 18b, between these two volumes, the piston 44 that is fixedly installed on the lever apparatus 32 is arranged.These two storage volumes 18a and 18b are connected with each other through the equalizing valve 52 that is arranged in the connecting tube 50, and this connecting tube 50 couples together delivery duct 22 and reflux line 26.When equalizing valve 52 was closed, braking liquid was in the discharge-service valve 24 that partially opens at least under the state from the first storage volumes 18a through control and is sent to brake fluid tank 14.On the contrary, when equalizing valve 52 was closed, the braking flow can not be sent to brake fluid tank 14 through the discharge-service valve 24 that control is under the state of partially opening from the second storage volumes 18b.This is to realize that easily mode is that reflux line 26 leads to the first storage volumes 18a.Delivery duct 22 can lead to the second storage volumes 18b.
Equalizing valve 52 is configured to not have the valve that stream is opened with optimal way.On the contrary, discharge-service valve 24 preferable configuration are not for there being the valve that stream is closed.In that the function of supplying power of brake system is limited when influencing, also can guarantee the favourable running of brake system thus.
As replenishing, can be at delivery duct 22 set inside pressure decoupling zero valves (Druckentkopplungsventil) 54.But this pressure decoupling zero valve 54 not only can be provided with as flow regulating valve, and can be used as the interior entering valve of the suction branch road of pumping plant 16 with the control pump fluid.Equally also can with pumping plant 16 and upstream line 20 parallel bypass tube roads 56 in superpressure balance cock (Ueberdruckausgleichsventil) 58 is set, and this bypass duct 56 leads to brake fluid tank 14 and delivery duct 22.Superpressure balance cock 58 is preferably so directed, so that the braking flow can not flow into delivery duct 22 through bypass duct 56 from brake fluid tank 14.In addition, surge chamber 60 can also be set on delivery duct 22.Additionally, the shown brake system that has a pressure sensor at least be configured on the discharge-service valve 24 and/or at least one of storage volumes 18a and 18b in.
In the embodiment shown, the second storage volumes 18b additionally receives the restriction of spring housing's piston 62, and the spring installation 28 that is arranged in the adjacent springs chamber 64 is supported on this spring housing's piston 62.As replacement, spring housing 64 also can be arranged on plug-cylinder body-device 65 inside that have storage volumes 18a and 18b, spring housing 64, piston 44 and spring housing's piston 62, and such first storage volumes 18a receives the restriction of spring housing's piston 62.Can be along the lever apparatus that passes through this spring housing's piston 32 regulating spring chamber pistons 62.To in spring housing's piston 62, construct a recess for this reason, wherein can stop braking liquid through being configured on this recess and the seal ring of encircles rod device 32 permeates away.Also can realize leakage compensation through the hydraulic connectors between spring housing 68 and the brake fluid tank 14 67.
Fig. 2 A illustrates the brake system under a kind of operational mode, and within it, spring installation 28 is in expansion position farthest.The single volume V 11 of two storage volumes 18a and 18b and the total volume V11+V21 of V21 preferably are contracted to minimum value.The expansion yardstick I1 of spring installation 28 or spring housing 46 along lever apparatus 32, is maximum.Low relatively at two storage volumes 18a and 18b pressure inside p1 with optimal way.
Fig. 2 A illustrates the brake operating parts 30 that are in reference position.Also can so transform, promptly not from chaufeur one side operation brake operating parts 30.Because the equalizing valve 52 opened and be arranged on the pull back spring 66 (return and adjustment spring) in the main brake cylinder 10, brake operating parts 30 both can also can court's return direction 70 opposite with it move towards direction of operating 68 with lever apparatus 32.When for example brake system was in the operational mode shown in Fig. 2 A, primer pump device 16 was to be full of storage volumes 18a and 18b, and pretension/compression spring device 28 thus.
Fig. 2 B illustrates by means of pumping plant 16 and realizes being in the brake system the operational mode after being full of fully of two storage volumes 18a and 18b from brake fluid tank 14 suction brakings liquid through valve 52 and/or 54.After the perfusion, have pressure p 2 in storage volumes 18a and the 18b, this pressure p 2 is greater than the preceding pressure p 1 of perfusion.The total volume V21+V22 of the storage volumes 18a of perfusion and the single volume V of 18b 12 and V22 is equally greater than the total volume V11+V21 before the perfusion.Spring installation 28 or spring housing 64 perfusion backs have expansion yardstick I2 along lever apparatus 32, and this expansion yardstick I2 is less than the preceding expansion yardstick I1 of perfusion.Spring installation 28 is compression fully preferably.Can guarantee that through closing drain valve 24 braking liquid that is pumped into perfusion storage volumes 18a and 18b is not back to the braking media Containers.In addition, in the operation scheme shown in Fig. 2 B,, can guarantee that brake operating parts 30 deflect towards both direction 68 and 70 because equalizing valve 52 is opened.
Brake system when Fig. 2 C illustrates driver's operation brake operating parts 30, wherein brake operating parts 30 are regulated to direction of operating 68.The chaufeur braking force Ff that is imposed on the brake operating parts 30 by chaufeur passes to (not shown) main brake cylinder-piston through lever apparatus 32 as the part of the Fg that makes a concerted effort.By means of the (not shown) sensor, can confirm to operate the manipulation value of brake operating parts 30 and can send to the (not shown) flip flop equipment.Therefore flip flop equipment is as indicated above, can under the situation of considering the manipulation value, confirm additionally to be applied to the rated value of the specified bearing force on main brake cylinder-piston and will to issue discharge-service valve 24 with the control signal that definite rated value conforms to.For example confirmable rated value has had illustrated at preceding text.Additionally, equalizing valve 52 is adjusted to closed condition by means of flip flop equipment.So trigger discharge-service valve 24 by means of control signal, so that liquid capacity V flows to brake fluid tank 14 through the discharge-service valve 24 that partially opens at least from the first storage volumes 18a.The braking liquid volume V that is sent to brake fluid tank 14 causes the pressure p 3 in the first storage volumes 18a to be reduced under the pressure p 3, and the volume V 13 of the first storage volumes 18a is dwindled.The volume V 22 of the second storage volumes 18b keeps constant with its pressure inside p2 because equalizing valve 52 is closed.(braking liquid approaches incompressible.)
Because the volume of the first storage volumes 18a diminishes, the total volume V13+V22 of two storage volumes 18a and 18b reduces with respect to the numerical value of V12+V22 to some extent.This excites spring installation 28 to expand, and spring installation 28 or spring housing 46 increase to I3 along the expansion yardstick of lever apparatus 32 thus.The elastic force that spring installation 28 discharges when expanding passes to piston 44 through spring housing's piston 62 with (not having really/almost incoercible) second storage volumes 18b.Because piston is fixedly mounted on the lever apparatus 32, so the elastic force that discharges passes to main brake cylinder-piston through lever apparatus 32 as the part (except chaufeur braking force Ff) of Fg with joint efforts.Through this mode, the Fg with joint efforts that is applied on main brake cylinder-piston can obviously increase with respect to the chaufeur braking force Ff that imposes on braking input block 30, and does not need traditional brake servo unit, especially vacuum brake assistor.
Under the situation of particularly dynamic brake operation, when activating spring installation 28 expansions, increase through producing pressure by means of pumping plant 16 suction brakings liquid entering storage volumes 18b, for example pass through shown in the arrow 72.In addition, through discharge-service valve 24 and equalizing valve 52 even can reduce the braking force of chaufeur, and reduce the maximum pressure specification of ESP valve thus.
In another kind of (not shown) is arranged; Can pass through another valve (similar) with valve 54 by means of pumping plant 16 to storage volumes 18a input pressure; When valve 42 and 52 cuts out thus; Also possibly effectively resist the power that is applied by chaufeur, pull bar 32 can be accomplished the stretch footpath towards the opposite direction of chaufeur force direction like this.
But in an alternative embodiment, pumping plant 16 also can operation when operation brake operating parts 30.Can when operation brake operating parts 30, pump horsepower be reduced to a value especially, this numerical value can not cause on brake operating parts 30, producing the power that pushes back that chaufeur can be felt.If but preferred rapid pretension spring installation 28, then equally can be with complete pump horsepower process pump device 16 when operation brake operating parts 30.
Fig. 2 D illustrates the brake system behind the chaufeur end operation brake operating parts 30.As long as flip flop equipment confirms to weaken brake operating by means of the actuating force value that provides, then discharge-service valve 24 is adjusted to closed condition by means of control signal.Braking liquid can not flow to brake fluid tank 14 from the first storage volumes 18a thus.Flip flop equipment sends signal to equalizing valve 52 simultaneously, and through this signal, equalizing valve 52 is connected the state for partially opening at least.Through the equalizing valve 52 that partially opens at least, braking flow 74 can transfer to the first storage volumes 18a from the second storage volumes 18b.Pressure p 4 occurs among such two storage volumes 18a and the 18b, this pressure p 4 is between pressure p 2 and p3.
When the total volume v13+v22 of storage volumes 18a and 18b remains unchanged, the equalization of pressure in two storage volumes 18a and the 18b.Spring installation 28 remains on the position of its part compression when equalization of pressure thus.Spring installation 28 or spring housing 64 keep constant along the expansion yardstick I3 of lever apparatus 32.When weakening the operation of braking input block 30, can not apply additional elastic force like this to main brake cylinder-piston.
Equalization of pressure in two storage volumes 18a and the 18b makes piston 44 to regulate to return direction 70 through returning place force Fr.As long as to two storage volumes 18a and 18b suction braking liquid, the total volume V14+V24=V13+V22 maintenance of two storage volumes 18a and 18b is constant when equalization of pressure.When weakening operation, brake operating parts 30 can at least partly be adjusted back to reference position thus, and spring installation 26 can not decompress(ion).Additionally, brake operating parts 30 are through from the return in the main brake cylinder 10 of the pressure return spring 66 of brake clamp or returning place force.Chaufeur gives usual answer for brake operating parts 30 when weakening the operation of braking input block 30 like this.The energy that simultaneously can save as part compression spring device 28 to expansion yardstick I3 and apply is used for complete compression spring device to the energy of the yardstick I2 that expands thus and reduces.Therefore, when release the brake, still can obtain holder and fill (Speicherladungserhalt).In servicely also can't brake closing.
Fig. 3 illustrates the scheme drawing of this brake system the 3rd embodiment.
Brake system shown in Figure 3 has its principle of work, and guarantees to have the advantage of preceding text illustrated embodiment.Different with the foregoing description is that second piston-cylinder--unit 82 that the brake system of here explaining has first piston-cylinder-unit 80 and adds, this piston-cylinder--unit 80 comprise two storage volumes 18a and 18b and piston 44 therebetween is set.Second piston-cylinder--unit 82 comprise receive 84 restrictions of adjustable intermediate piston and have the spring housing 86 that is supported on the spring installation 28 on this intermediate piston 84 with receive equally intermediate piston 84 that limit and with the second storage volumes 18b hydraulic pressure bonded assembly pressure chamber 88.Be configured with pipeline 89 between the second storage volumes 18b and the pressure chamber 86.
The structure that has the brake system of two piston-cylinder--unit that separate 80 and 82 (these two piston-cylinder--unit 80 are connected through pipeline 89 with 82) also can transform the joint outer part of the spring energy storage device that has spring installation 28 as.Connect through taking off coupling/outside, brake system can be dwindled along the expansion yardstick/length of lever apparatus 32.Can practice thrift the structure space through this mode.In addition, it guarantees more closely to utilize the space based on the order of accumulator and pumping plant 16.
In addition, in the illustrated example, can not allow lever apparatus 32 to pass intermediate piston 84 herein.Need on lever apparatus 32, not seal especially ring seal thus.Can reduce loss due to leakage through this mode.This possibly cause pumping plant 16 or the reducing of the engine power of attaching troops to a unit.So also can use the littler model of pumping plant 16 or pump motor.
Fig. 4 illustrates the scheme drawing of this brake system the 4th embodiment.
Except that the parts that preceding text have been explained; The schematic described brake system of Fig. 4 comprises that also four wheels get into valves 90 (having unshowned boiler check valve under some situation separately), but by means of this wheel get into valve 90 can control brake liquid from main brake cylinder 10 corresponding four hydraulic pressure bonded assembly wheel brake calipers 92 respectively.In addition, brake system comprises four wheel discharge-service valves 94, and these wheel discharge-service valves 94 are so design respectively, with the stream of control brake liquid from (but the hydraulic pressure bonded assembly) wheel brake caliper 92 of attaching troops to a unit to brake fluid tank 14.For in four wheel brake calipers 92 each; Brake system also has a wheel pressure charging valve 96 respectively, detours main brake cylinder 10 from the transmission equipment side of pumping plant 16 and/or from the pressure chamber 88 of second piston-cylinder--unit 82 at least one stream for the wheel brake caliper 92 of its assignment by means of these wheel pressure charging valve 96 Be Controlled brakings liquid through connecting tube 95.In addition, this brake system also has at least one pressure sensor 98.
For for simplicity, the system here is illustrated and only has and a hydraulic pressure wheel braking assembly that brake circuit is parallel.From the reason of secure context, realize minimum function when for example the individual event mistake occurring for assurance, floating piston can so be set in main brake cylinder 10, that is, the brake circuit that exists two hydraulic pressure to separate, this brake circuit connects through piston action power.Generally speaking, the wheel braking assembly in the various combination can be distributed to the brake circuit that hydraulic pressure separates.Also can have other boiler check valve for this reason, especially will to get into valve 90 parallel with vehicle, thus cause glancing impact compensation vehicle get into valve 90 to straining.
Brake system realizes the direct connection of ESP and brake servo unit thus, and uses pumping plant 16, pump engine coefficient with it, flip flop equipment mentioned above and/or the energy accumulator of realizing by means of spring installation 28 jointly.Cited parts selectively are used for applying additional braking force and the particular adjustments brake-pressure at least one wheel brake caliper 92 on main brake cylinder-piston 97 thus.Spring installation 28 especially is used as the energy of reserve device of braking force increase and brake-power modulation.Can save other pumps, driving engine and/or energy of reserve device through the multifunctionality of spring installation 28.Same owing to saved parts, guarantee to have dwindled structure space.
Different with traditional brake equipment, the brake system that here illustrates (though attainable braking force increases) does not have brake servo unit (this brake servo unit overcomes the braking function that the pressure that produces through modulating system reduces to have modulation (for example when ABS moves)).Also can so transform, brake system promptly shown here can realize that brake-pressure increases according to the expectation pressure of chaufeur, can not react on modulating system for the modulation that realizes same expectation expends high-energy when the supercharging.When using traditional approach, often when using brake system shown here, the function that is realized by brake servo unit and modulating system can be fitted to each other with the relative work of many energy that goes to great pains/expend for brake servo unit and modulating system.Thus model is required still less, and practice thrift the parts expense.
In addition, brake system described herein guarantees unique energy source of electric energy as braking reinforcement and modulation.Therefore brake system is combined into integral body with hydraulic braking reinforcement and braking modulation having only on a kind of basis of energy source.
Can reach high dynamic brake response especially through spring energy storage device.Fast counter moving with the astringency that reduces braking liquid consumingly (for example under low-temperature condition) and the relevant therewith valve that possibly reduce to partially open at least 52 on volume flow the time; Maybe be under the very little situation of road surface friction force; For example, realize the wheel operation of slowing down sometimes on ice.The wheel operation of slowing down can be advantageously adjustment through the ESP valve be able to compensation (closing wheel gets into valve 90 and partially opens wheel discharge-service valve 94 at least).Can when the entity size that does not pass through to use spring installation 28 to confirm driving engine-pump-operation chains, realize the high reinforcement of braking dynamically simultaneously.Make introducing ESP become easy like this.Through closing discharge-service valve 24 even possibly reduce the braking force of chaufeur, and possibly reduce the maximum pressure Specification (Druckspezifikation) of ESP valve through this mode.The brake-power modulation that is used for ESP, ABS or similar system possibly realized through standard ESP executive mode.Also maybe be in another (unshowned) configuration at this; The valve of other that are parallel to that valve 54 is provided with through; By means of pumping plant 16 pressure is introduced storage volumes 18a; Shutoff valve 24 and still can effectively resist the power that chaufeur applies at 52 o'clock thus, the direction that pull bar 32 is can court opposite with the force direction of chaufeur like this is through LAP.
In order to optimize the quality that brake feel is regulated, can use the inflow valve that leads to pumping plant 16 or additional outflow valve.In fact possibly produce pedal stroke and force characteristic curve arbitrarily.In addition, can guarantee also that in this embodiment height dynamically activates braking, but not allow the people to feel the vibrations (pump stroke) of pedal.
The return movement plane is able to simplify.Because chaufeur is through lever apparatus 32 (piston rod) direct control main brake cylinder 10, so chaufeur for example under the affected situation of the energy supply of brake system, also can be realized braking reliably under faulty condition.Under faulty condition, the equilibrium of the power of the power of elastic force and auxiliary cylinder block (taking off coupling under the faulty condition) possibly obtain suitable mediation then.Therefore the favorable structure through valve is even also can guarantee safer braking under failure condition.Can when the parts cost is minimum, peak demand be proposed like this to safety and reliability.
Braking system architecture shown in Figure 4 is an open system.The braking liquid that overflow from valve 94 this moment flows directly into container.When for example pressure reduced, braking liquid can not be back to brake circuit.When need increasing wheel pressure, directly it is delivered to wheel brake caliper through valve 90.This stops the pump of brake operating parts 30 when carrying out the ABS regulation and control to be inhaled.But point out that the applicability that spring installation 28 is used for regulating the brake-pressure in the wheel brake caliper 92 specially and on main brake cylinder-piston 97, applying subsidiary load selectively not only is confined to open system.
In addition, through converting the hydraulic braking servo-unit to, can especially in long-time characteristic, realize better durability compared to leakage from gas brake servo unit principle.Because therefore directly suction possibly improve low-temperature properties from brake fluid tank 14.Can carry out preheating (through physically directly near brake cylinder, brake servo unit, ESP-excitor unit and container) through triggering valve or exterior thermal source under some situation.
The brake system that Fig. 4 is schematically shown also can be designed for reclaiming electrical generator-lock torque.Particularly, can realize that favourable electric energy reclaims property (Rekuparationsfaehigkeit) owing to the accurate controllability of wheel brake caliper inside brake pressure and through to any characteristic controllability of stroke force on the pull bar 32.
Fig. 5 A and 5B illustrate the 5th embodiment of this brake system, and wherein Fig. 5 B is the partial view of Fig. 5 A.
Visible from Fig. 5 A and 5B, brake system can be configured to the single-piece system very compactly, and this system has a housing that comprises braking system part.The housing of compactly designed brake system can be fixedly mounted in the automobile simply.For example can tighten, weld or cling.In an illustrated embodiment, housing can be fixed on the compartment antetheca through plug 100.The driving engine of pumping plant 16 can be through plug 102 power supplies.The electric parts of other of brake system, for example flip flop equipment 34, can be connected on the automobile power source through plug 102.
Can be with the brake operating parts in other steps, for example brake pedal is installed on the end of the lever apparatus 32 of protrusion from hydraulic block (Hydraulikblock) 106.In the big relatively structure in second piston-cylinder-that has spring installation 28-unit 82, can guarantee the compactedness that the integration brake system is favourable.By means of spring installation 28 big relatively elastic force can be provided like this.
Fig. 5 B illustrates the part sectional view of the hydraulic block 106 that has first piston-cylinder body-unit 80 and main brake cylinder 10, and this first piston-cylinder body-unit 80 comprises two storage volumes 18a and 18b and piston 44.This can be seen that wheel gets into valve, wheel discharge-service valve and wheel pressure charging valve 108 can and save the space around main brake cylinder 10 and first piston-cylinder body-unit setting.
There is illustrated brake system mode durable and cost saving to make at above-mentioned paragraph.When making brake system, can use to have standardized component small tolerance, that be used for valve, spring energy storage device, driving engine and/or pump especially.
Like this embodiment of the above-mentioned brake system of design, with carry out according to the inventive method processing step.Therefore save supplemental instruction at this to this technology.
Claims (15)
1. the brake system of automobile has
Main brake cylinder (10), this main brake cylinder (10) have the main brake cylinder-piston (97) that can at least partly in the inner room of main brake cylinder (10), regulate;
Pumping plant (16), braking liquid can be so be pumped at least one storage volumes (18,18a, 18b) by means of this pumping plant (16) from brake fluid tank (14), thereby the total volume of said at least one storage volumes (18,18a, 18b) can increase;
Discharge-service valve (24) can be controlled the braking flow from said at least one storage volumes (18,18a, 18b) to brake fluid tank (14) by means of this discharge-service valve (24), thereby the total volume of said at least one storage volumes (18,18a, 18b) can reduce; And
Spring installation (28);
It is characterized in that,
Spring installation (28) is set; Thereby can overcome its elastic force compression spring device (28) through the total volume that increases said at least one storage volumes (18,18a, 18b); With the expansion that can activate this spring installation (28) through the total volume that reduces said at least one storage volumes (18,18a, 18b); And elastic force can pass to main brake cylinder-piston (97) when spring installation (28) expanded, thereby main brake cylinder-piston (97) can at least partly be adjusted in the inner room by means of elastic force.
2. brake system according to claim 1; It is characterized in that; Brake system additionally comprises flip flop equipment (34); Can receive the actuating force value (38) that at least one relevant automobile driver that is provided by sensor (36) is operated brake operating parts (30) by means of this flip flop equipment (34); Under the situation of the manipulation value of considering to receive at least (38), can confirm to be applied to the specified bearing force on main brake cylinder-piston (97) and/or to be sent to the rated value of the braking liquid volume (V) in the brake fluid tank (14) from said at least one storage volumes (18,18a, 18b) by means of spring installation (28); And, can trigger discharge-service valve (24) by means of control signal (40), make and can will be applied on main brake cylinder-piston (97) with the corresponding elastic force of confirming of rated value by means of the spring installation (28) that expands.
3. brake system according to claim 2; It is characterized in that; These brake operating parts (30) can be fixedly installed on the brake system; Thereby make brake operating parts (30) when brake system is moved, be connected, thereby the chaufeur braking force (Ff) that is applied on the brake operating parts (30) can pass to main brake cylinder-piston (97) with main brake cylinder-piston (97).
4. require wherein arbitrary described brake system according to aforesaid right; It is characterized in that; This brake system additionally comprises the piston (44) of said at least one storage volumes of restriction (18,18a, 18b), and elastic force can pass to this piston (44) when spring installation (28) expands, and; This piston is connected with main brake cylinder-piston (97), thereby makes elastic force to pass to main brake cylinder-piston (97) through piston (44).
5. brake system according to claim 4; It is characterized in that; The piston (44) that limits said at least one storage volumes (18,18a, 18b) is fixedly installed on the lever apparatus (32), and the brake operating parts (30) that are arranged on this brake system are connected with main brake cylinder-piston (97) through this lever apparatus (32).
6. brake system according to claim 5 is characterized in that, piston (44) is arranged between storage volumes (18) and the spring housing (48), and this spring housing (48) has the spring installation (28) that is supported on this piston (44).
7. according to claim 4 or 5 described brake system; It is characterized in that; Piston (44) is arranged between first storage volumes (18a) and second storage volumes (18b), and these two storage volumes (18a, 18b) are connected with each other through equalizing valve (52), and; Although equalizing valve (52) is closed; The braking flow still can be sent to brake fluid tank (14) through controlling to the discharge-service valve (24) that partially opens at least under the state from first storage volumes (18a), and same because equalizing valve (52) is closed, and interrupts from second storage volumes (18b) through controlling to the braking flow of discharge-service valve (24) to the brake fluid tank (14) that partially opens at least under the state.
8. brake system according to claim 7; It is characterized in that; First storage volumes (18a) or second storage volumes (18b) additionally receive the restriction of spring housing's piston (62), and the spring installation (28) that is arranged in the adjacent springs chamber (64) is supported on this spring housing's piston (62).
9. brake system according to claim 7; It is characterized in that; This brake system also has second piston-cylinder--unit (82) except that first piston-cylinder body-unit (80); This first piston-cylinder body-unit (80) comprises first storage volumes (18a) and second storage volumes (18b), wherein second piston-cylinder--unit (82) comprise limited by adjustable intermediate piston (84) and have the spring housing (86) of the spring installation (28) that is supported on this intermediate piston (84) and receive equally intermediate piston (84) restriction and with second storage volumes (18b) hydraulic pressure bonded assembly pressure chamber (88).
10. require wherein arbitrary described brake system according to aforesaid right; It is characterized in that; Brake system comprises that additionally at least one wheel gets into valve (90); Get into that valve (90) can be controlled from main brake cylinder (10) but the braking flow that flows at least one hydraulic pressure bonded assembly wheel brake caliper (92) by means of this wheel; And/or at least one wheel discharge-service valve (94), by means of this wheel discharge-service valve (94) but can control the braking flow that flows into brake fluid tank (14) from hydraulic pressure bonded assembly wheel brake caliper (92).
11. brake system according to claim 10; It is characterized in that; Brake system additionally comprises at least one wheel pressure charging valve (96), through this wheel pressure charging valve (96) may command from the pressure chamber (88) of the conveyor side of pumping plant (16) and/or second piston-cylinder--unit (82) detour main brake cylinder body (10) but situation under flow into the braking flow of said at least one hydraulic pressure bonded assembly wheel brake caliper (92).
12. require wherein arbitrary described brake system according to aforesaid right, it is characterized in that braking system architecture is total system and has the housing that surrounds braking system part that this housing can be fixedly installed in the automobile.
13. require wherein arbitrary described brake system according to aforesaid right, it is characterized in that spring installation (28) comprises at least one spring and/or elastic compressible material.
14. be used for the method for operational vehicle brake system; This brake system has main brake cylinder (10) and spring installation (28); Its elastic force passes to the main brake cylinder-piston (97) of main brake cylinder (10) when spring installation (28) expands; Thereby main brake cylinder-piston (97) is adjusted in the inner room of main brake cylinder (10) at least in part, has the following steps:
Get at least one storage volumes (18,18a, 18b) compression spring device (28) increasing the total volume of said at least one storage volumes (18,18a, 18b) through suction braking liquid from brake fluid tank (14), thereby;
Through triggering expansion that the braking flow that flows into brake fluid tank (14) from said at least one storage volumes (18,18a, 18b) activates spring installation (28) to reduce the total volume of at least one storage volumes (18,18a, 18b).
15. method according to claim 14 has additional step:
Draw the manipulation value (38) of automobile driver operation brake operating parts (30);
Under the situation of considering manipulation value (38), confirm to be applied to the specified bearing force on main brake cylinder-piston (97) and/or to be sent to the rated value of the braking liquid volume of brake fluid tank (14) from said at least one storage volumes (18,18a, 18b) by means of spring installation;
Trigger discharge-service valve (24); Flow into the braking flow of brake fluid tank (14) from said at least one storage volumes (18,18a, 18b) by means of this discharge-service valve (24) control; Under the situation of the rated value of considering to confirm, thereby apply and the corresponding elastic force of confirming of rated value to main brake cylinder-piston (97) by means of the spring installation (28) that expands.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102011006746.9 | 2011-04-05 | ||
| DE102011006746.9A DE102011006746B4 (en) | 2011-04-05 | 2011-04-05 | Braking system for a vehicle and method for operating a braking system for a vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102729971A true CN102729971A (en) | 2012-10-17 |
| CN102729971B CN102729971B (en) | 2016-04-27 |
Family
ID=46874870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210174390.5A Expired - Fee Related CN102729971B (en) | 2011-04-05 | 2012-04-05 | The brake system of automobile and the method for operation brake system of car |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN102729971B (en) |
| DE (1) | DE102011006746B4 (en) |
| FR (1) | FR2973763B1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104701072A (en) * | 2015-02-21 | 2015-06-10 | 郑景文 | Application method of motor vehicle brake switch |
| CN108119256A (en) * | 2017-12-08 | 2018-06-05 | 中国航发动力股份有限公司 | A kind of overload protective device and overload protection method suitable for Stirling engine |
| CN111348021A (en) * | 2018-12-20 | 2020-06-30 | 罗伯特·博世有限公司 | Reservoir chamber for a hydraulic brake system of a vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013012237A1 (en) * | 2013-07-23 | 2015-01-29 | Lucas Automotive Gmbh | Master brake cylinder arrangement of a motor vehicle brake system with filter element and fluid reservoir and insert element for this purpose |
| US10099662B2 (en) | 2015-03-11 | 2018-10-16 | Ford Global Technologies, Llc | Braking systems including compressible medium to modify brake fluid pressure |
| CN107131160B (en) * | 2017-06-30 | 2018-12-25 | 威马智慧出行科技（上海）有限公司 | A kind of electric car driving energy-storage system and electric car |
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| WO1997043558A1 (en) | 1996-05-15 | 1997-11-20 | Kelsey-Hayes Co. | Hydraulic brake booster |
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- 2011-04-05 DE DE102011006746.9A patent/DE102011006746B4/en not_active Expired - Fee Related
-
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- 2012-04-04 FR FR1253078A patent/FR2973763B1/en not_active Expired - Fee Related
- 2012-04-05 CN CN201210174390.5A patent/CN102729971B/en not_active Expired - Fee Related
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| CN104701072A (en) * | 2015-02-21 | 2015-06-10 | 郑景文 | Application method of motor vehicle brake switch |
| CN108119256A (en) * | 2017-12-08 | 2018-06-05 | 中国航发动力股份有限公司 | A kind of overload protective device and overload protection method suitable for Stirling engine |
| CN111348021A (en) * | 2018-12-20 | 2020-06-30 | 罗伯特·博世有限公司 | Reservoir chamber for a hydraulic brake system of a vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102729971B (en) | 2016-04-27 |
| DE102011006746A1 (en) | 2012-10-11 |
| FR2973763A1 (en) | 2012-10-12 |
| FR2973763B1 (en) | 2017-06-23 |
| DE102011006746B4 (en) | 2023-10-05 |
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