GB2451559A - Electrically operated brake having brake sensor fail safety - Google Patents

Electrically operated brake having brake sensor fail safety Download PDF

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Publication number
GB2451559A
GB2451559A GB0813423A GB0813423A GB2451559A GB 2451559 A GB2451559 A GB 2451559A GB 0813423 A GB0813423 A GB 0813423A GB 0813423 A GB0813423 A GB 0813423A GB 2451559 A GB2451559 A GB 2451559A
Authority
GB
United Kingdom
Prior art keywords
brake
sensor
sensors
brake pedal
brake device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB0813423A
Other versions
GB0813423D0 (en
GB2451559B (en
Inventor
Stefan Strengert
Peter Blessing
Werner Harter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of GB0813423D0 publication Critical patent/GB0813423D0/en
Publication of GB2451559A publication Critical patent/GB2451559A/en
Application granted granted Critical
Publication of GB2451559B publication Critical patent/GB2451559B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • B60T7/00—Brake-action initiating means
    • B60T7/02—Brake-action initiating means for personal initiation
    • B60T7/04—Brake-action initiating means for personal initiation foot actuated
    • B60T7/042—Brake-action initiating means for personal initiation foot actuated by electrical means, e.g. using travel or force sensors
    • 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
    • B60T13/74—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 electrical assistance or drive
    • B60T13/741—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 electrical assistance or drive acting on an ultimate actuator
    • 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
    • B60T8/321—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 deceleration
    • 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
    • B60T8/321—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 deceleration
    • B60T8/3255—Systems in which the braking action is dependent on brake pedal data
    • 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
    • B60T8/88—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 with failure responsive means, i.e. means for detecting and indicating faulty operation of the speed responsive control means
    • B60T8/885—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 with failure responsive means, i.e. means for detecting and indicating faulty operation of the speed responsive control means using electrical circuitry
    • 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
    • B60T2220/00—Monitoring, detecting driver behaviour; Signalling thereof; Counteracting thereof
    • B60T2220/04—Pedal travel sensor, stroke sensor; Sensing brake request
    • 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
    • B60T2270/00—Further aspects of brake control systems not otherwise provided for
    • B60T2270/40—Failsafe aspects of brake control systems
    • B60T2270/413—Plausibility monitoring, cross check, redundancy

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)
  • Regulating Braking Force (AREA)
  • Braking Elements And Transmission Devices (AREA)

Abstract

A brake device, for an electrically operated motor vehicle brake e.g. brake-by-wire, with a brake pedal sensor 6a, 6b for picking up a brake command, a control device 4a, 4b connected to the brake pedal sensor 6a, 6b and at least one brake actuator 5a-5d which is activated by the control device 4a, 4b according to the brake command. The fail safety of the brake can be substantially improved if at least two brake pedal sensors 6a, 6b are provided, each of which is associated with a control device 4a, 4b, wherein the control devices 4 are connected together via a data link 8, such as a data bus. The sensors may provide redundancy or may measure different physical quantities. A wake up device is also disclosed to allow the system to shut down when it is not in use.

Description

Description Title
Sensor concept for an electrically operated brake
Prior art
The invention relates to a motor vehicle brake, in particular an electrically operated brake, according to the preamble of Claim 1.
In vehicles with a conventional hydraulic or pneumatic brake system there is a mechanical feedthrough between the brake pedal and the individual wheel brakes. In contrast to this, in the case of electrically operated brake systems the brake command of the driver is detected by a sensor system and evaluated by a control device which activates the brake actuators, such as, e.g. electric motors disposed on the calliper (Motor on Caliper), according to the driver command. As prescribed for safety reasons, the sensor system is to be designed with redundancy. However even in the case of a redundant sensor system the brake system can fail, as the control device is limited in its ability to distinguish between incorrect and correct measured values.
Moreover, in the worst case the actual control device may also be faulty and fail. Known brake systems are at present not able to overcome disturbances of this kind without problems.
Disclosure of the invention
The object of the present invention is therefore to further improve the immunity to disturbance of an electrically operated motor vehicle brake system.
This object is achieved according to the invention by the features which are presented in Claim 1. Further developments of the invention can be found in the subclaims.
An essential aspect of the invention lies in providing a plurality of brake pedal sensors which in each case pick up the brake command, and associating the brake pedal sensors with different control devices which are connected together via a data link. Information concerning the brake command or the functional capability of the sensors can therefore be exchanged between them. Therefore, following the failure of one of the sensors, the associated control device still has available the information of another sensor connected to another control device. Moreover, should one of the control devices fail, the entire brake system is not affected. The reliability of the brake system can therefore be substantially improved.
The data link between the individual control devices is preferably in the form of a data bus.
Each of the control devices is preferably associated with a brake circuit with one or a plurality of brake actuator(s) The brake pedal sensors according to the invention preferably measure different physical quantities, such as, e.g. pedal force and pedal travel. This means that the sensor which is connected to a first control device measures, for example, the force and the sensor which is connected to another control device measures, for example, the travel. It is alternatively possible also to measure an angle or another physical quantity which is characteristic of the operation of the brake pedal.
According to a preferred embodiment of the invention, an additional brake pedal state sensor is provided at least at one of the control devices, which sensor can detect at least two different brake states, such as, e.g. "brake operated" and "brake not operated". In the simplest case the state sensor is a switch, such as, e.g. the brake light switch. An additional brake pedal state sensor is preferably connected to all the control devices.
According to a special embodiment of the invention, the brake pedal sensors associated with a control device are designed with redundancy, in this case at least two brake pedal sensors being connected to a control device. The reliability of the system can as a result again be increased. The redundant sensors can also measure different physical quantities.
The brake pedal sensors are preferably in the form of Hall sensors. This construction is particularly simple and inexpensive.
The individual control devices preferably carry out a plausibility check of the individual sensor signals. An absolute value check or a gradient check can in this case be carried out in a known manner. The sensor signals of the sensors connected to a single control device are preferably also compared with one another. This means that the signal of the brake pedal sensor is compared with, for example, the signal of the brake pedal state sensor. If a fault is established, the corresponding measured value can be read in by one of the other control devices via the data link.
It is thus possible to maintain the brake function further.
It is, moreover, also possible in most cases to exactly locate the defective sensor. This applies in particular when just a single sensor is defective.
A switch is preferably provided in the supply path of the brake pedal sensors, by means of which switch the sensors can be de-energised when the vehicle is at a standstill.
The quiescent load can therefore be significantly reduced.
The signal of the brake pedal state sensors is preferably used as a wake-up signal to activate the associated control device. If other wake-up signals, such as, e.g. that of a radio remote control, of the door contact or of the ignition, have not already woken up the control device, the wake-up takes place when the brake is first operated by the brake pedal state sensor. If this very brake pedal state sensor is defective and the fault has been detected, the associated control device is preferably woken up via another control device.
Brief description of the drawings
The invention is illustrated in detail in the following by way of example on the basis of the accompanying drawings, in which: Fig. 1 is a schematic block representation of an electrically operated brake system according to a first embodiment of the invention; Fig. 2 is a schematic block representation of an electrically operated brake system according to a second embodiment of the invention; Fig. 3 is a schematic block representation of an electrically operated brake system with two brake circuits in a detailed view, and Fig. 4 is a schematic block representation of an electrically operated brake system with three brake circuits according to a third embodirrient of the invention.
Embodiments of the invention Fig. 1 shows an electrically operated motor vehicle brake system with two brake circuits 9a, 9b. The represented brake system comprises a foot brake pedal 1 and two sensor devices 2a, 2b, by means of which the pedal application is picked up. Here each sensor device 2a, 2b can comprise one or a plurality of sensor(s). A particular control device 4a, 4b is associated with each sensor device 2a, 2b, to which control device the sensor signals are transmitted.
The brake system further comprises a plurality of brake actuators 5a, 5b and 5c, 5d, respectively, which are activated or controlled by the control devices 4a, 4b according to the driver command. Each two actuators 5a, 5b and 5c, 5d, respectively, belong to a brake circuit 9a and 9b, respectively. The two brake circuits 9a, 9b can, for example, be disposed in an X layout.
The sensors 2a, 2b and the associated control devices 4a and 4b, respectively, are supplied with electrical power by different vehicle electrical systems 3a, 3b. Each of the vehicle electrical systems 3a, 3b preferably comprises its own energy store, such as, e.g. a battery, which also guarantees a sufficient energy supply in an emergency.
The two control devices 4a, 4b are connected together via a data bus 8, via which the sensor signals or corresponding information in particular can be exchanged. Information on the functional capability of the sensors 2a, 2b, for example, can additionally be transmitted.
Should a sensor (e.g. 2a) have a fault, the sensor signals of the other sensors 2b are therefore available to the control device 4a concerned. Therefore the brake circuit (9a) affected by the fault does not fail and can continue to be operated. Moreover, it is in most cases possible, by means of the additional sensor information received via the data bus 8, to locate the faulty sensor (2a) Fig. 2 shows the brake system of Fig. 1 with further details. The brake system again comprises two brake circuits 9a, 9b, with a brake pedal sensor 6a, 6b as well as an additional brake pedal state sensor 7a, 7b being associated with each of the brake circuits 9a, 9b. The brake pedal sensors 6a, 6b measure a physical quantity which characterises the extent of the pedal application (quantitative measurement). This can be, for example, the travel, an angle, a force or another appropriate physical quantity. It has become apparent that the reliability of the sensor system can be further improved if the sensors 6a, 6b measure different quantities, such as, e.g. force and angle.
The brake pedal state sensors 7a, 7b are sensors which can distinguish two different brake states, such as, e.g. "braking" and "not braking". In the simplest case these sensors 7a, 7b are therefore in the form of switches.
During operation the control devices 4a, 4b regularly carry out plausibility monitoring of the sensor signals. In this case, for example, the absolute value of the signals can be checked or gradient monitoring of the individual signals carried out in a known manner. The sensors 6a, 7a and 6b, 7b, respectively, in each case associated with a control device 4a and 4b, respectively, are preferably also compared with one another (i.e. the signal of the sensor 6a with that of the sensor 7a). Further sensor faults can as a result be detected.
It is in addition possible to compare the signals of the sensors 6a, 7a, and 6b, 7b, respectively, connected to a control device 4a and 4b, respectively, with those of the sensors 6b, 7b connected to the other control device (e.g. 4b). Further sensor faults or signal drifts can as a result be detected. Furthermore, the brake circuit 9a or 9b affected by the fault still has available the sensor signals of the other brake circuit (e.g. 9b), so that that brake circuit does not fail.
Furthermore, the defective sensor can be located relatively easily by means of a majority decision, i.e. the sensor signals of three sensors (e.g. 7a, 6b, 7b) are in each case compared with that of a fourth sensor (e.g. 6a) . The equivalent naturally also applies to brake systems with three or more than four sensors.
If a fault is established, a warning signal is preferably generated and the driver is informed of the fault by means of a suitable indicator device, such as, e.g. a small indicator lamp. The fault can therefore be quickly remedied in a workshop.
In the represented embodiment the brake pedal state sensors 7a and 7b at the same time have a wake-up function, by means of which the associated control device 4a can be changed over from a ready state to the normal operating state. In current vehicles many electronic components are changed over to an idle or a ready state when the vehicle is at a standstill. These components are returned to the normal operating state through a specific activation process, such as, e.g. operating the radio remote control of the central locking system, opening the door, starting the engine, etc. In this case the "wake-up signal" for the control device 4a is generated by operating the foot brake pedal when the sensor 7a changes its signal state. If the state sensor 7a is defective, the control device 4a can also be woken up by means of a signal transmitted via the data bus 8.
Fig. 3 shows the brake system of Figs. 1 and 2 with further details. As can be seen, each brake circuit comprises two brake pedal sensors 6a, 6a' and 6b, 6b', respectively, of redundant design. The sensors 6a, 6a' are Hall sensors which in the present example measure an angle. The associated transducer, a permanent magnet 12, is fastened to the brake pedal 1. The sensors 6b, 6b' are in the form of force sensors and measure the braking force which is transmitted to the sensors 6b, 6b' via a spring-damper system with springs 13 and dampers 14. Each of the brake circuits also comprises a switch 7a, 7b, which switches change their state when the brake pedal 1 is operated. A respective switch 10 is provided in the supply path of the brake pedal sensors 6, which switch serves to disconnect the sensors when the vehicle is at a standstill and therefore to reduce the quiescent current. The switches 10 may, for example, be activated by the associated control devices 4a, 4b. Furthermore, an amplifier 11 is provided in the signal output 15 of the sensors, by means of which amplifier the respective sensor signal is amplified.
Fig. 4 shows another brake system which is divided into three brake circuits 9a-9c. Each brake circuit 9a-9c in turn comprises a control device 4a-4c and one or a plurality of brake actuator(s) (not shown). A brake pedal sensor 6a is connected to the control device 4a, a brake pedal sensor 6b is connected to the control device 4b and a brake pedal state sensor 7a is connected to the control device 4c. Each of the control devices 4a-4c is connected to each other control device via a particular data bus 8a-Bc. It is as a result again possible to compare the signals with one another and thus detect sensor faults.
Furthermore, the signals of the functional sensors can be used if a fault exists.

Claims (18)

  1. 25.07.2007 ROBERT BOSCH GMBH; 70442 Stuttgart Claims 1. Brake device, in particular an electrically operated brake device for motor vehicles, comprising a brake pedal sensor (6a, 6b) for picking up a brake command exercised at a brake pedal (1) and a control device (4a, 4b) connected to the brake pedal sensor (6a, 6b), characterised in that at least two brake pedal sensors (6a, 6b) are provided, each of which is associated with a control device (4a, 4b), and that the control devices (4a, 4b) are connected together via a data link (8)
  2. 2. Brake device according to Claim 1, characterised in that the control devices (4a, 4b) are designed to exchange information concerning the brake command or the functional capability of the sensors (6, 7) via the data link (8)
  3. 3. Brake device according to Claim 1 or 2, characterised in that the data link (8) is a data bus.
  4. 4. Brake device according to any one of the preceding Claims, characterised in that an additional brake pedal state sensor (7a, 7b) is provided at least at one of the control devices (4a, 4b), which sensor can detect at least two different brake states.
  5. 5. Brake device according to Claim 4, characterised in that a plurality of brake pedal state sensors (7a, 7b) are provided, each of which is associated with a control device (4a, 4b)
  6. 6. Brake device according to Claim 4 or 5, characterised in that the at least one brake pedal state sensor (7a, 7b) is in the form of a brake light switch.
  7. 7. Brake device according to any one of the preceding Claims, characterised in that the control devices (4a, 4b) are each associated with a brake circuit.
  8. 8. Brake device according to any one of the preceding Claims, characterised in that the brake pedal sensors (6a, 6b) are in the form of Hall sensors.
  9. 9. Brake device according to any one of the preceding Claims, characterised in that the brake pedal sensors (Ga, 6b) of at least one control device (4a, 4b) are designed with redundancy.
  10. 10. Brake device according to any one of the preceding Claims, characterised in that the brake pedal sensors (6a, 6b) measure different physical quantities.
  11. 11. Brake device according to any one of the preceding Claims, characterised in that the control devices (4a, 4b) carry out a plausibility check of the sensor signals of the brake pedal sensors (6a, Gb) and/or of the brake pedal state sensors (7a, 7b)
  12. 12. Brake device according to Claim 11, characterised in that a comparison with the sensor signal of another sensor (6, 7) connected to the other control device (4a, 4b) is carried out.
  13. 13. Brake device according to Claim 11, characterised in that if a fault is established the corresponding measured value is read by another control device (4a, 4b) via the data link (8).
  14. 14. Brake device according to Claim 11 or 13, characterised in that, in relation to the plausibility check, the measuring signal of a sensor (6, 7) is compared with the signal of another sensor (6, 7) is compared with the signal of another sensor (6, 7) connected to the same control device (4a, 4b).
  15. 15. Brake device according to any one of the preceding Claims, characterised in that the control devices (4a, 4b) are supplied with electrical power by different vehicle electrical systems (3a, 3b).
  16. 16. Brake device according to Claim 15, characterised in that the electrical systems (3a, 3b) each have a separate energy store.
  17. 17. Brake device according to any one of the preceding Claims, characterised in that at least one brake actuator (5a-5d) is comprised, which actuator is activated by the control device (4a, 4b) according to the brake command.
  18. 18. A brake device substantially as herein described with reference to the accompanying drawings.
GB0813423A 2007-07-27 2008-07-22 Sensor concept for an electrically operated brake Expired - Fee Related GB2451559B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007035326A DE102007035326A1 (en) 2007-07-27 2007-07-27 Sensor concept for an electrically operated brake

Publications (3)

Publication Number Publication Date
GB0813423D0 GB0813423D0 (en) 2008-08-27
GB2451559A true GB2451559A (en) 2009-02-04
GB2451559B GB2451559B (en) 2010-04-21

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Family Applications (1)

Application Number Title Priority Date Filing Date
GB0813423A Expired - Fee Related GB2451559B (en) 2007-07-27 2008-07-22 Sensor concept for an electrically operated brake

Country Status (4)

Country Link
JP (1) JP2009029416A (en)
DE (1) DE102007035326A1 (en)
FR (1) FR2919250B1 (en)
GB (1) GB2451559B (en)

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CN102325679A (en) * 2009-03-31 2012-01-18 日立汽车***株式会社 In-vehicle control device
WO2015010756A1 (en) * 2013-07-26 2015-01-29 Wabco Gmbh Method and electronic circuit assembly for the redundant signal processing of a safety-relevant application, motor vehicle brake system, motor vehicle having said motor vehicle brake system, and use of such an electronic circuit assembly
US10343657B2 (en) 2017-01-24 2019-07-09 Cts Corporation Position and force sensor assembly for vehicle brake pedal
US20220169222A1 (en) * 2019-04-09 2022-06-02 Continental Teves Ag & Co. Ohg Method for operating a braking system of a vehicle, and braking system
US11597366B2 (en) 2019-05-09 2023-03-07 Cts Corporation Vehicle brake pedal with pedal resistance assembly and force/position sensor

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DE102009046234A1 (en) * 2009-10-30 2011-05-19 Robert Bosch Gmbh Electric brake system, in particular electromechanical brake system, method for operating an electric brake system
DE202009017430U1 (en) * 2009-12-23 2011-05-05 Liebherr-Werk Ehingen Gmbh sensor
DE102010006061A1 (en) * 2010-01-28 2011-08-18 Daimler AG, 70327 Method and device for generating a brake light output signal of a brake system for a vehicle
DE102011016125A1 (en) 2011-04-05 2012-10-11 Lucas Automotive Gmbh Technique for redundantly detecting an actuation of a motor vehicle brake system
DE102012204263A1 (en) 2012-03-19 2013-09-19 Continental Teves Ag & Co. Ohg Power brake system
JP5843008B2 (en) * 2012-06-07 2016-01-13 トヨタ自動車株式会社 Abnormality detection device for braking force detection means
US9669809B2 (en) * 2013-05-13 2017-06-06 Toyota Jidosha Kabushiki Kaisha Brake control device for vehicle
DE102016221584B4 (en) * 2016-11-03 2019-09-05 Audi Ag Method for controlling a brake system of a motor vehicle
JP6624094B2 (en) * 2017-01-27 2019-12-25 トヨタ自動車株式会社 Braking device
JP7275660B2 (en) * 2019-03-01 2023-05-18 株式会社アイシン Automotive brake control system
DE102019129153A1 (en) * 2019-10-29 2021-04-29 Wabco Europe Bvba Foot brake module of an electropneumatic brake system of a motor vehicle
JP2023071025A (en) * 2021-11-10 2023-05-22 株式会社デンソー Brake system and brake pedal device
JP2023071024A (en) * 2021-11-10 2023-05-22 株式会社デンソー Brake system and brake pedal device
DE102022106664A1 (en) * 2022-03-22 2023-09-28 HELLA GmbH & Co. KGaA Method for operating a sensor system, sensor system, vehicle, computer program product and storage medium
JP2023164180A (en) * 2022-04-29 2023-11-10 株式会社デンソー brake system
FR3137038B1 (en) * 2022-06-23 2024-05-10 Continental Automotive Tech Method for detecting a failure of a brake pedal switch
DE102022211131A1 (en) * 2022-10-20 2024-04-25 Robert Bosch Gesellschaft mit beschränkter Haftung Method and device for operating a vehicle with a pedal device
DE102022130753A1 (en) 2022-11-21 2024-05-23 HELLA GmbH & Co. KGaA Method for controlling a system
DE102022212809A1 (en) * 2022-11-29 2024-05-29 Robert Bosch Gesellschaft mit beschränkter Haftung Drive-by-wire system for a vehicle
DE102022213127A1 (en) 2022-12-06 2024-06-06 Robert Bosch Gesellschaft mit beschränkter Haftung Operating procedure for a pedal assembly for safety-critical vehicle systems
DE102022213119A1 (en) 2022-12-06 2024-06-06 Robert Bosch Gesellschaft mit beschränkter Haftung Operating procedure for an actuation arrangement for safety-critical vehicle systems
DE102022213115A1 (en) 2022-12-06 2024-06-06 Robert Bosch Gesellschaft mit beschränkter Haftung Operating procedure for a pedal assembly for safety-critical vehicle systems

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GB0813423D0 (en) 2008-08-27
JP2009029416A (en) 2009-02-12
GB2451559B (en) 2010-04-21
DE102007035326A1 (en) 2009-01-29
FR2919250A1 (en) 2009-01-30

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