CN100526133C - Device for supplying pressure to an actuation unit of a motor vehicle breaking system and method for controlling said device - Google Patents
Device for supplying pressure to an actuation unit of a motor vehicle breaking system and method for controlling said device Download PDFInfo
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- CN100526133C CN100526133C CNB2005800265764A CN200580026576A CN100526133C CN 100526133 C CN100526133 C CN 100526133C CN B2005800265764 A CNB2005800265764 A CN B2005800265764A CN 200580026576 A CN200580026576 A CN 200580026576A CN 100526133 C CN100526133 C CN 100526133C
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- 238000000034 method Methods 0.000 title claims description 21
- 238000002485 combustion reaction Methods 0.000 claims description 14
- 238000005457 optimization Methods 0.000 claims description 12
- 239000004065 semiconductor Substances 0.000 claims description 4
- 230000007704 transition Effects 0.000 claims description 3
- 230000002349 favourable effect Effects 0.000 description 6
- 230000003321 amplification Effects 0.000 description 3
- 238000003199 nucleic acid amplification method Methods 0.000 description 3
- 230000008929 regeneration Effects 0.000 description 3
- 238000011069 regeneration method Methods 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009432 framing Methods 0.000 description 1
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Abstract
The invention relates to a device for supplying pressure to a control unit for a motor vehicle braking apparatus, in particular for a Brake-by-wire type motor vehicle braking apparatus. Said device comprises a pneumatic motor-pump-assembly (3) comprising a pump (6) and a motor (7) which drives the pump (6). The motor-pump assembly (3) is controlled by an electronic control unit (10, 12) according to a pressure level and/or pressure difference in a pneumatic brake booster (1) of the control unit. The pressure level in a chamber or pressure difference between two chambers of the brake booster (1) is detected by means of a sensor (9). According to the invention, the control unit (10, 12), which is used to control the motor-pump assembly (3), comprises a logic module and a power module which are separated from each other in order to maintain the availability of the operational brake function as high as possible and also to obtain a possible high redundancy, in particular in relation to errors or failure of the electronic system or of the border network.
Description
Technical field
The present invention relates to a kind of be used for to vehicle brake apparatus actuation unit, especially provide the device of pressure to " brake-by-wire " type vehicle brake apparatus, this device comprises the compressed-air controlled motor-pump assembly that has pump and drive the motor of this pump, wherein, this motor-pump assembly is according to the control unit control by electronics of the stress level in the compressed-air controlled brake booster of this actuation unit or difference of pressure, and the difference of pressure between the stress level in the chamber of this brake booster or two chambeies is by means of sensor.
Background technology
This apparatus and method of vacuum that provide in vehicle are open by for example DE 199 29 880 A1, and wherein, motor-pump assembly comprises vacuum pump, and this vacuum pump additionally is activated according to the mode of operation of driver element.
" brake-by-wire " type vehicle brake apparatus can according to the chaufeur hope by means of the control unit (ECU) of electronics, promptly do not rely on chaufeur ground and handle, also can partly handle by means of brake pedal (machinery returns level).Return at the machinery that do not have to amplify that shortcoming is in the system of level, only just provide the service braking function under the situation of supply of electrical energy existing, the braking of amplification promptly just is provided.Fault in the inefficacy of supply of electrical energy or the control unit of electronics for example causes in hydraulic line control ejector half brake system promptly only can realizing the braking of not amplifying when following legal rim condition (500N rides power 0.3g) in EHB.The failure probability of the failure probability of electronic unit, especially electrical energy supply device must take higher technical measures to make " brake-by-wire " type vehicle brake apparatus be held in traditional vehicle brake apparatus high similarly in the workability of service braking function aspects generally than the failure probability height of traditional mechanical brake parts thus.
By using regeneration brake based on the brake booster that can not rely on chaufeur control, realize this intention basically, promptly improve the workability of service braking function with respect to EHB.This regeneration brake mainly uses in motor vehicle driven by mixed power and elec. vehicle.If this drg is set for the motor vehicle driven by mixed power with electrical motor and combustion engine, then obtain such mode of operation, in this mode of operation, combustion engine is not provided for the pressure of actuation unit and therefore needs electrically operated pump.
Especially in pure electric vehicle, required pressure must produce by such pump separately.Thus, the service braking function depends on the workability of car load circuit network (Bordnetz) again.Usually attempt to control vacuum pump by the ECU of brake system for the cost reason, thus, the service braking function also depends on the workability of arrester control device.
Summary of the invention
Therefore, the objective of the invention is to, the highland keeps the workability of service braking function as far as possible, and obtains especially high as far as possible redundancy aspect electronics package or car load circuit network trouble or failure in the case.
This purpose realizes like this: the control unit that is used to control motor-pump assembly has logic module and power model, and this logic module and this power model are provided with apart from each other.Realize thus: the fault of a module can not influence another module inevitably, and the service braking function can not be forced to lose efficacy thus.
Redundancy in the electric current supply of these two modules obtains like this: logic module and power model are connected on the car load circuit network of vehicle apart from each other.
Favourable further configuration of the present invention proposes: control unit is set for control motor-pump assembly and brake system or is used for the driving engine of control vehicle, and logic module is arranged in the control unit, and power model is arranged on the control unit outside.The independent control unit that is used for motor-pump assembly can be removed thus from, and the extra cost of the framing member that is used to add, fail-safe device etc. can be saved.The logic module that is used for controlling motor-pump assembly can almost need not the control unit that has existed that the surcharge land used is integrated in brake system.And power model comprises big electronic unit for example relay or MOSFET and the corresponding big structure space of needs, and thus, this power model preferably is arranged on motor-pump assembly or is arranged in other control unit of vehicle.At this also advantageously, the high temperature rise of power model does not have influence to the control unit of motor-pump assembly and brake system or to the control unit of driving engine, because need to be used for leading from control unit the corresponding structure measure of heat dissipation capacity under situation about power model being integrated in the control unit.
In order to save independent housing, for example in preferred implementing form, be provided with relay as power model, this relay is arranged in the relay case of vehicle.
According to another favourable form of implementation, be provided with the semiconductor element that is preferably FET as power model, this semiconductor element is arranged in the relay case of vehicle.
In addition, the present invention proposes the method that is used to control according to device of the present invention, the characteristics of this method are: connect motor-pump assembly when control-unit failure.Guaranteeing thus provides pressure to brake booster.At this, when control-unit failure, preferably connect motor-pump assembly by normally closed switch.
The favourable form of implementation of another of the method according to this invention proposes: the manipulation of the sensor by being used to detect brake-pedal travel when control-unit failure, for example connect motor-pump assembly by the manipulation of braking signal switch, and when not handling this sensor, turn-off motor-pump assembly, wherein, this sensor is connected with the control setup of the driver element of vehicle.The braking hope of identification of driver and in brake booster, provide for the essential pressure of braking that amplifies thus by control motor-pump assembly.
In order to protect motor-pump assembly and in order to reduce temperature rise, to propose in the favourable further configuration of the method according to this invention: motor-pump assembly is the work of beat ground during at control-unit failure.
Even for the pressure that still continues in brake booster to keep essential after braking procedure, according to another favourable form of implementation, motor-pump assembly keeps connecting the predetermined time after the manipulation of the sensor that is used to detect brake-pedal travel.
If vehicle is the motor vehicle driven by mixed power that is provided with combustion engine and electrical motor, then when breaking down, the control unit of control motor-pump assembly advantageously signal is transferred to control unit of engine, and combustion engine carries out the transition in such mode of operation, in this mode of operation, the pressure that is used for actuation unit provides by combustion engine separately.This means that the combustion engine of motor vehicle driven by mixed power does not turn-off at any mode of operation, so that guarantee the essential pressure supply of brake booster.
If vehicle brake apparatus has optimization hydraulic brake system (OHB), this optimization hydraulic brake system comprises that the pressure of hydraulic pressure increases the unit, this pressure increases the unit and amplifies according to the braking force that the difference of pressure between the chamber of brake booster adds, wherein, this difference of pressure is detected by vacuum transducer, then propose: control motor-pump assembly by independent pump control unit and independent sensor according to the present invention, except that vacuum transducer, described independent sensor also detects the stress level of brake booster, and motor-pump assembly is connected on the car load circuit network of self-propelled vehicle by the lead that separates.Can realize the work that does not rely on brake system of motor-pump assembly thus.But in order to save parts, also can be but control motor-pump assembly by means of vacuum transducer not by means of independent sensor.
In order to guarantee redundancy, by means of the power model control motor-pump assembly that is designed to the independent electric current supply of having of relay or FET, and pump control unit and/or drg control unit can be read the signal of the vacuum transducer of OHB system.If signal is only read by one of control unit, then signal preferably is transported to another control unit respectively by bus connecting device.
If signal is read by the drg control unit, then, when the drg control-unit failure, control motor-pump assembly fully, so that under any circumstance all guarantee the pressure supply according to another favourable further configuration of the inventive method.
Description of drawings
By means of the accompanying drawing that shows some embodiment the present invention is described below.Wherein:
Fig. 1 represents the exemplary system structure according to first embodiment of device of the present invention;
Fig. 2 represents the exemplary system structure according to second embodiment of device of the present invention;
Fig. 3 represents the exemplary system structure according to the 3rd embodiment of device of the present invention.
The specific embodiment
Fig. 1 shows the exemplary system structure according to first embodiment of device of the present invention, and this device is used for providing pressure to the actuation unit of " brake-by-wire " type vehicle brake apparatus.Can see that this actuation unit has compressed-air controlled brake booster 1 and is arranged on main brake cylinder 2 on this brake booster." brake-by-wire " type vehicle brake apparatus can according to the chaufeur hope by means of the control unit (ECU) of electronics, promptly do not rely on chaufeur ground and handle, also can partly handle by means of unshowned brake pedal (machinery returns level).
The basic structure of actuation unit and function are generally open, therefore, only describe the feature of essence of the present invention below.
The unshowned inner room of brake booster 1 is divided at least two chambeies by at least one movable wall.Under the situation of vacuum brake booster, inner room is divided at least one vacuum chamber and at least one epitrochoidal chamber; Under the situation of high pressure brake booster, inner room is divided into the chamber of at least one elevated pressures and the chamber of at least one lower pressure.Main brake cylinder 2 has two unshowned pistons that can move in housing, these pistons respectively limit the border of the pressure chamber of a hydraulic pressure with housing.These pressure chambers can be connected with uninflated pressure medium container 4, and can be connected with the unshowned car side brake of vehicle brake apparatus by mouth 5.
Compressed-air controlled motor-pump assembly 3 comprises pump 6 and drives the motor 7 of this pump 6 that this motor for example is designed to electrical motor.According to brake booster 1 is with vacuum work or with high-pressure work, and pump 6 is configured to vacuum pump or boost pump, but this is not critical to the present invention.Therefore, only describe below at vacuum brake booster with vacuum chamber and epitrochoidal chamber and vacuum pump.Brake booster can be configured to single assembly or tandem arrangement at this.
For vacuum being provided for brake booster 1, vacuum pump 6 is connected with the unshowned vacuum chamber of brake booster 1 by aspiration 8.Be arranged on sensor 9 on brake booster 1 or the vacuum pump 6 and detect vacuum level in the vacuum chambers or the difference of pressure between vacuum chamber and the epitrochoidal chamber, wherein, the detected pressure of analyzing and processing in electronic brake control unit (drg ECU) 10.Sensor 9 also can be arranged in the aspiration 8 in framework of the present invention.
Motor-pump assembly 3 is directly by drg ECU10 control, and this drg ECU for example can be designed to by the ESP control unit of the brake system of electronic stability program (ESP) adjusting.In order to control, drg ECU10 has unshowned logic module and unshowned power model, and wherein, these two modules are provided with apart from each other, so that can avoid fault in one of these modules to the influence of another module.This means that when breaking down, work functions is that the braking of the amplification of brake equipment can not lost efficacy inevitably in one of these modules.In order to obtain the additional redundancy of electric current supply, two modules are connected on the car load circuit network of vehicle apart from each other.
Especially the logic module that comprises the software that is used for controlling motor-pump assembly 3 can almost need not the surcharge land used at this and be integrated in drg ECU10.
Comprise that circuit unit that is used to control and the power model that for example can be designed to relay or MOSFET are arranged on drg ECU10 outside, because this power model is owing to electronic unit needs additional structure space.In addition, the described setting independently has additional advantage: the high temperature rise of power model can not exert an influence to drg ECU10.Because the additional temperature rise meeting of drg ECU10 need be used to lead the measure on the corresponding structure of heat dissipation capacity.Power model can be arranged on motor-pump assembly 3, be arranged on other control unit of vehicle, be arranged in the relay case of vehicle or be arranged between drg ECU10 and the motor 7.In addition, by last described being arranged in the relay case, can save the housing that is used for power model.
As can be from seeing Fig. 1, drg ECU10 be connected with the control unit of engine (Engine ECU) 11 of electronics by bus system CAN (controller local area network).In addition, drg ECU10 and Engine ECU 11 can be connected with other control unit in the vehicle by CAN.
Fig. 2 shows the exemplary system structure according to second embodiment of device of the present invention, and this device is used for providing pressure to the actuation unit of " brake-by-wire " type vehicle brake apparatus.The difference of this device and first embodiment only is: be provided with the independent pump ECU12 that is used to control motor-pump assembly 3, signal and this pump ECU that this pump ECU reads in sensor 9 are connected with Engine ECU 11 with drg ECU10 by CAN.Can additionally control motor-pump assembly 3 by drg ECU10 thus.Logic module and power model also are provided with independently of one another and the electric current supply of these modules is carried out dividually.Also logic module can be arranged among the pump ECU12 in this embodiment, and power model is arranged on pump ECU12 outside, for example is arranged in the relay case.
According to the 3rd embodiment shown in Fig. 3, the another kind of possibility that is used for the signal of pickup 9 is: the signal of drg ECU10 pickup 9, and corresponding signal is offered pump ECU12 by the CAN connecting device.
In described all embodiment, when losing efficacy, the control unit of controlling 10,12 connected motor-pump assembly 3, provide pressure so that guarantee to brake booster 1.At this, when control-unit failure, for example connect motor-pump assembly 3 by normally closed switch.
Another kind of possibility is, when the control unit of controlling 10,12 lost efficacy, sensor by being used to the to detect brake-pedal travel for example manipulation of braking signal switch is connected motor-pump assembly 3, and when not handling this sensor, turn-off motor-pump assembly 3, wherein, this sensor and control unit 10,12 irrespectively read in signal by Engine ECU 11.
In order to protect and to reduce temperature rise, motor-pump assembly 3 beat ground work when control-unit failure.
If vehicle is the motor vehicle driven by mixed power that is provided with combustion engine and electrical motor, then at the control unit (drg ECU10 or independently pump ECU12) of control motor-pump assembly 3 when breaking down, signal will be transferred to Engine ECU 11 and combustion engine carries out the transition in such mode of operation, in this mode of operation, the pressure that is used for described actuation unit provides by combustion engine individually.This means that the combustion engine of motor vehicle driven by mixed power does not turn-off at any mode of operation, so that guarantee the essential pressure supply of brake booster 1.
Under the situation of motor vehicle driven by mixed power, for saving in energy, especially use so-called regeneration brake, wherein, the kinetic energy of the vehicle that glancing impact slides converts electric energy to, this electric energy is temporarily stored by intelligent energy management system and is input in the transmission system when starting or acceleration, alleviates the load of combustion engine thus.At this, all can in motor vehicle driven by mixed power, use according to described all embodiment of device of the present invention.
If vehicle brake apparatus has optimization hydraulic brake system (OHB) for the workability that improves the service braking function, wherein this optimization hydraulic brake system comprises that the pressure of hydraulic pressure increases the unit, this pressure increases the unit and amplifies according to the braking force that the difference of pressure between the chamber of brake booster adds, and then this difference of pressure is detected by the vacuum transducer that is arranged on the brake booster.Pressure increases the unit and for example is designed to pump, and this pump is adjusted the pressure in the wheel braking loop.Thus, also can keep described amplification, can present the hydraulic braking additional function or can obtain the compensation that brake booster lost efficacy even surpass the modulation point of brake booster.
Can be by controlling motor-pump assembly 3 according to the independent pump control unit and the described sensor 9 of Fig. 2 and Fig. 3 description, wherein, except that the unshowned vacuum transducer of OHB system, sensor 9 also detects the stress level of brake booster.Motor-pump assembly 3 is connected by the lead that separates on the car load circuit network of self-propelled vehicle, can realize the work that does not rely on brake system of motor-pump assembly 3 thus.
But in order to save parts, also can be but control motor-pump assembly by means of vacuum transducer not by means of independent sensor 9.At this,, can control vacuum transducer by means of being designed to power model relay, that have independent electric current supply, and come read output signal by pump ECU12 and drg ECU10 in order to guarantee redundancy.If only by one of control unit 10 or 12 read output signal, then signal offers another control unit respectively by the CAN connecting device.
If, then meaningfully, when drg ECU10 loses efficacy, controlled motor-pump assembly 3 fully, so that under any circumstance all guarantee the pressure supply by drg ECU10 read output signal.
Label list
1 brake booster, 7 motors
2 main braking cylinders, 8 aspiration
3 motors-pump assembly 9 sensors
4 pressure medium containers, 10 brake control modules
5 mouths, 11 control unit of engine
6 pumps, 12 pump control units
Claims (24)
1. device that is used for providing pressure to the actuation unit of vehicle brake apparatus, this device comprises having pump (6) and drive the compressed-air controlled motor-pump assembly (3) of the motor (7) of this pump (6), wherein, this motor-pump assembly (3) is according to the stress level in the compressed-air controlled brake booster (1) of this actuation unit or the difference of pressure control unit (10 by electronics, 11,12) control, difference of pressure between stress level in the chamber of this brake booster (1) or two chambeies detects by means of sensor (9), it is characterized in that: the control unit (10 that is used to control motor-pump assembly (3), 11,12) have logic module and power model, this logic module and this power model are provided with apart from each other.
2. according to the device of claim 1, it is characterized in that: this logic module and this power model are connected on the car load circuit network of vehicle apart from each other.
3. according to the device of claim 1 or 2, it is characterized in that: described control unit (10) is set for control motor-pump assembly (3) and brake system; Described logic module is arranged in this control unit (10); Described power model is arranged on this control unit (10) outside.
4. according to the device of claim 1 or 2, it is characterized in that: described control unit (11) is set for the driving engine of control vehicle; Described logic module is arranged in this control unit (11); Described power model is arranged on this control unit (11) outside.
5. according to the device of claim 1, it is characterized in that: described power model is arranged on described motor-pump assembly (3).
6. according to the device of claim 1, it is characterized in that: described power model is arranged in other control unit of vehicle.
7. according to the device of claim 1, it is characterized in that: be provided with the relay as power model, this relay is arranged in the relay case of vehicle.
8. according to the device of claim 1, it is characterized in that: be provided with the semiconductor element as power model, this semiconductor element is arranged in the relay case of vehicle.
9. according to the device of claim 1, it is characterized in that: vehicle brake apparatus has the optimization hydraulic brake system, this optimization hydraulic brake system comprises that the pressure of hydraulic pressure increases the unit, this pressure increases the unit and amplifies according to the braking force that the difference of pressure between the chamber of brake booster (1) adds, wherein, this difference of pressure is detected by vacuum transducer; By independent pump control unit (12) and independent sensor (9) control motor-pump assembly (3), except that vacuum transducer, this independent sensor (9) also detects the stress level of brake booster (1); This motor-pump assembly (3) is connected on the car load circuit network of self-propelled vehicle by independent lead.
10. according to the device of claim 1, it is characterized in that: vehicle brake apparatus has the optimization hydraulic brake system, this optimization hydraulic brake system comprises that the pressure of hydraulic pressure increases the unit, this pressure increases the unit and amplifies according to the braking force that the difference of pressure between the chamber of brake booster (1) adds, wherein, this difference of pressure is detected by vacuum transducer; By independent pump control unit (12) and this vacuum transducer control motor-pump assembly (3); This motor-pump assembly (3) is connected on the car load circuit network of self-propelled vehicle by independent lead.
11. device according to claim 10, it is characterized in that: control motor-pump assembly (3) by means of the power model that is designed to the independent electric current supply of having of relay or FET, and read the signal of the vacuum transducer of optimizing hydraulic brake system by described pump control unit (12) and/or drg control unit (10).
12. the device according to claim 10 or 11 is characterized in that: described pump control unit (12) is connected with other control unit of vehicle by bus connecting device.
13. a method that is used to control according to the device of one of claim 1 to 12 is characterized in that: when control unit (10,12) lost efficacy, connect motor-pump assembly (3).
14. the method according to claim 13 is characterized in that: when described control unit (10,12) loses efficacy, connected motor-pump assembly (3) by normally closed switch.
15. method according to claim 13, it is characterized in that: at described control unit (10, when 12) losing efficacy, motor-pump assembly (3) is connected in the manipulation of the sensor by being used to detect brake-pedal travel, and when not handling this sensor, turn-off motor-pump assembly (3), wherein, this sensor is connected with the control setup (11) of the driver element of vehicle.
16. the method according to one of claim 13 to 15 is characterized in that: when described control unit (10,11) lost efficacy, the work of motor-pump assembly (3) beat ground.
17. the method according to claim 13 is characterized in that: after the manipulation of the sensor that is used to detect brake-pedal travel, motor-pump assembly (3) keeps connecting the predetermined time.
18. the method according to claim 13 is characterized in that: described pump control unit (12) is connected with other control unit of vehicle by bus connecting device.
19. method that is used to control according to the device of one of claim 1 to 12, wherein, vehicle is the motor vehicle driven by mixed power with combustion engine and electrical motor, it is characterized in that: at the control unit (10 of control motor-pump assembly (3), when 12) breaking down, signal is transferred to control unit of engine (11), and combustion engine carries out the transition in such mode of operation, in this mode of operation, the pressure that is used for actuation unit provides by this combustion engine separately.
20. method that is used to control according to the device of claim 1, wherein, vehicle brake apparatus has the optimization hydraulic brake system, this optimization hydraulic brake system comprises that the pressure of hydraulic pressure increases the unit, this pressure increases the unit and amplifies according to the braking force that the difference of pressure between the chamber of brake booster (1) adds, wherein, this difference of pressure is detected by vacuum transducer, it is characterized in that: by independent pump control unit (12) and independent sensor (9) control motor-pump assembly (3), except that vacuum transducer, this independent sensor (9) also detects the stress level of brake booster (1); This motor-pump assembly (3) is connected on the car load circuit network of self-propelled vehicle by independent lead.
21. method that is used to control according to the device of claim 1, wherein, vehicle brake apparatus has the optimization hydraulic brake system, this optimization hydraulic brake system comprises that the pressure of hydraulic pressure increases the unit, this pressure increases the unit and amplifies according to the braking force that the difference of pressure between the chamber of brake booster (1) adds, wherein, this difference of pressure is detected by vacuum transducer, it is characterized in that: by independent pump control unit (12) and this vacuum transducer control motor-pump assembly (3); This motor-pump assembly (3) is connected on the car load circuit network of self-propelled vehicle by independent lead.
22. method according to claim 21, it is characterized in that: control motor-pump assembly (3) by means of the power model that is designed to the independent electric current supply of having of relay or FET, and read the signal of the vacuum transducer of optimizing hydraulic brake system by described pump control unit (12) and/or drg control unit (10).
23. the method according to claim 22 is characterized in that: when described drg control unit (10) lost efficacy, control motor-pump assembly (3) fully.
24. the method according to one of claim 21 to 23 is characterized in that: described pump control unit (12) is connected with other control unit of vehicle by bus connecting device.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102004038549 | 2004-08-06 | ||
| DE102004038549.1 | 2004-08-06 | ||
| DE102005036615.5 | 2005-08-01 |
Publications (2)
| Publication Number | Publication Date |
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| CN101001772A CN101001772A (en) | 2007-07-18 |
| CN100526133C true CN100526133C (en) | 2009-08-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005800265764A Active CN100526133C (en) | 2004-08-06 | 2005-08-04 | Device for supplying pressure to an actuation unit of a motor vehicle breaking system and method for controlling said device |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102012200423A1 (en) * | 2011-05-11 | 2012-11-15 | Continental Automotive Gmbh | Control module for an electric vacuum pump |
| US8899030B2 (en) * | 2011-12-13 | 2014-12-02 | Continental Automotive Systems, Inc. | Method of using a pump position sensor for an EBS pump check |
| DE102012201436A1 (en) | 2012-02-01 | 2013-08-01 | Robert Bosch Gmbh | A brake operation detecting apparatus and method for detecting an operation of a brake operating member of a brake system |
| US10239531B2 (en) * | 2017-01-10 | 2019-03-26 | GM Global Technology Operations LLC | Fault-tolerant automotive braking system |
| DE102017217647A1 (en) * | 2017-10-05 | 2019-04-11 | Robert Bosch Gmbh | Pressure sensor for a vehicle |
| DE102017218488A1 (en) | 2017-10-16 | 2019-04-18 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Brake redundancy concept for highly automated driving |
| US10611356B2 (en) * | 2018-03-30 | 2020-04-07 | Veoneer Us, Inc. | System and method for transient wake up of processor controlling a motor of a brake booster subsystem |
| DE102018208877A1 (en) * | 2018-06-06 | 2019-12-12 | Robert Bosch Gmbh | Method for operating a brake system of a motor vehicle, and control unit and brake system |
| DE102019206669A1 (en) * | 2019-05-09 | 2020-11-12 | Robert Bosch Gmbh | Control unit and method for operating a brake actuator of a vehicle |
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