US20140129108A1 - Technique for Redundant Registration of an Actuation of a Motor-Vehicle Braking System - Google Patents

Technique for Redundant Registration of an Actuation of a Motor-Vehicle Braking System Download PDF

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Publication number
US20140129108A1
US20140129108A1 US14/009,615 US201214009615A US2014129108A1 US 20140129108 A1 US20140129108 A1 US 20140129108A1 US 201214009615 A US201214009615 A US 201214009615A US 2014129108 A1 US2014129108 A1 US 2014129108A1
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Prior art keywords
sensor
signal
actuation
sensor signal
basis
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Abandoned
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US14/009,615
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English (en)
Inventor
Stefan Grieser-Schmitz
Michael Keller
Kenneth Vincent
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ZF Active Safety GmbH
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Lucas Automotive GmbH
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Assigned to LUCAS AUTOMOTIVE GMBH reassignment LUCAS AUTOMOTIVE GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KELLER, MICHAEL, GRIESER-SCHMITZ, STEFAN, VINCENT, KENNETH
Publication of US20140129108A1 publication Critical patent/US20140129108A1/en
Abandoned legal-status Critical Current

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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
    • B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
    • B60T17/18—Safety devices; Monitoring
    • B60T17/22—Devices for monitoring or checking brake systems; Signal devices
    • 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
    • B60T13/66—Electrical control in fluid-pressure brake systems
    • B60T13/662—Electrical control in fluid-pressure brake systems characterised by specified functions of the control system components
    • 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
    • B60T2270/402—Back-up
    • 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

Definitions

  • the present disclosure relates generally to the field of motor-vehicle braking systems. More precisely, the subject is the improvement of safety aspects in connection with the registering of an actuation of such a braking system.
  • Modern motor-vehicle braking systems are equipped with a plurality of sensors.
  • a braking system is known that includes an actuating device fitted with several sensors.
  • the sensors that have been provided in this case register different physical parameters within the scope of a braking operation.
  • a pressure sensor serves for registering a hydraulic pressure in the master cylinder
  • a force sensor measures an actuating force on the brake pedal
  • a pedal-travel sensor ascertains the distance traveled by the brake pedal.
  • Other sensors such as brake-light switches or pedal-angle sensors, also conventionally find application in braking systems.
  • the registering of a braking operation is of central importance.
  • various of the named sensors may come into operation.
  • a movement of the brake pedal can be registered, and in this way an actuation of the braking system can be inferred.
  • the detected actuation is then signalled, in the form of an actuation signal which is generated by an evaluating unit situated downstream of the pedal-travel sensor, to subsequent systems and mechanisms.
  • an apparatus for redundant registering of an actuation of a motor-vehicle braking system.
  • the apparatus includes at least one first sensor for generating a first sensor signal, the first sensor signal indicating a movement of a mechanical input component of the braking system, at least one second sensor for registering a second sensor signal, the second sensor signal indicating a hydraulic pressure in the braking system, and also a processing device coupled with the at least one first sensor and with the at least one second sensor, which is designed to selectively output an actuation signal generated on the basis of the first sensor signal or an actuation signal generated on the basis of the second sensor signal, the actuation signal indicating an actuation of the braking system.
  • the actuation signal can be signalled to subsequent driving-safety mechanisms, ride-comfort systems or other devices.
  • the actuation signal may be an analogue or digital (e.g., binary) signal.
  • the actuation signal can be generated or output continuously (i.e., even in the absence of an actuation of the braking system) or only intermittently (in the actuated state of the braking system).
  • the processing device may be designed to make a selection with regard to the actuation signal to be output as a function of an operational capability of individual components of the processing device itself.
  • the processing device may therefore exhibit an internal mechanism for checking its operational capability.
  • the processing device is designed, for example, to output the actuation signal generated on the basis of the first sensor signal in the case of normal operational capability of the apparatus. Additionally or alternatively to this, the processing device may be designed to output the actuation signal generated on the basis of the second sensor signal in the case of irregular operational capability of the apparatus.
  • the checking of the operational capability may include a plausibility check.
  • the processing device is designed to draw upon the second sensor signal (or a signal derived therefrom) for the purpose of checking the plausibility of the first sensor signal.
  • the second sensor signal or a signal derived therefrom
  • an irregular operational capability of the apparatus can be inferred.
  • a positive plausibility check a normal operational capability can be assumed.
  • the first sensor signal or a signal derived therefrom can be used for the purpose of checking the plausibility of the second sensor signal in connection with an actuation of the brake.
  • the processing device may exhibit one or more internal components. Accordingly, a first evaluating unit coupled with at least the first sensor (and optionally also with the second sensor) may be provided which is designed for evaluating the first sensor signal (and optionally the second sensor signal). The first evaluating unit may furthermore be designed for generating the actuation signal on the basis of the (evaluated) first and/or second sensor signal. Additionally or alternatively to this, a second evaluating unit coupled with at least the second sensor (and optionally also with the first sensor) may be provided. The second evaluating unit may be different from the first evaluating unit and may be arranged parallel to the latter in the direction of signal propagation. The second evaluating unit is designed for evaluating the second (and optionally the first) sensor signal and for generating the actuation signal on the basis of the second (and/or the first) sensor signal.
  • the processing device may further include a checking unit coupled with the first evaluating unit and/or with the second evaluating unit.
  • the checking unit is designed for checking the functional capability of the first and/or second evaluating unit. In the case of irregular operational capability of the first evaluating unit, the actuation signal generated on the basis of the second sensor signal, and conversely, can be output.
  • the processing device may further include a multiplexer coupled with output sides of the two evaluating units.
  • the multiplexer may be capable of being driven by the checking unit as a function of the operational capability of the first (and/or the second) evaluating unit, in order to output optionally the actuation signal generated on the basis of the first sensor signal or the actuation signal generated on the basis of the second sensor signal.
  • the second evaluating unit may include a comparator.
  • the comparator is preferentially designed to compare the second sensor signal with a reference signal and to generate the actuation signal as a function of the comparison.
  • the first evaluating unit may likewise include a comparator of such a type.
  • a comparator based on a reference signal may also be used by the first or second evaluating unit for the purpose of generating the actuation signal on the basis of the first sensor signal.
  • the sensors may be designed for registering extremely varied physical parameters.
  • the first sensor is designed for registering a braking request of a driver—that is to say, for example, an actuation of the brake pedal.
  • the actuation of the brake pedal can be detected by a pedal-travel sensor, a pedal-angle sensor, a pedal-force sensor or a brake-light switch. Two or more of these sensors may be also provided in redundant manner.
  • the second sensor may be a hydraulic-pressure sensor.
  • the hydraulic-pressure sensor may be arranged, for example, in the region of the master cylinder for the purpose of registering the hydraulic pressure prevailing there.
  • the hydraulic-pressure sensor has been assigned to a wheel-slip control system.
  • a method for redundant registering of an actuation of a motor-vehicle braking system.
  • the method comprises the steps of providing at least one first sensor for generating a first sensor signal which indicates a movement of a mechanical input component of the braking system, of providing at least one second sensor for generating a second sensor signal which indicates a hydraulic pressure in the braking system, and also of selectively outputting an actuation signal generated on the basis of the first sensor signal, or an actuation signal generated on the basis of the second sensor signal, which indicates an actuation of the braking system.
  • the actuation signal generated on the basis of the first sensor signal can be output.
  • the actuation signal generated on the basis of the second sensor signal can be output.
  • the extended braking system may comprise, in addition to the braking system (which, for example, includes wheel brakes, a wheel-slip control system, etc.), also the apparatus presented here for redundant registering of an actuation of the braking system.
  • the second sensor signal or a signal derived therefrom can be drawn upon for checking the plausibility of the first sensor signal. Conversely, the second sensor signal can be subjected to a plausibility check on the basis of the first sensor signal or a signal derived therefrom. In the case of a negative plausibility of the first sensor signal, an irregular operational capability of the apparatus (at any rate, with regard to the signal path provided for the first sensor signal) can be inferred, and conversely.
  • a first evaluating unit coupled with at least the first sensor can evaluate the first sensor signal and generate the actuation signal on the basis of the first sensor signal.
  • a second evaluating unit coupled with at least the second sensor can evaluate the second sensor signal and generate the actuation signal on the basis of the second sensor signal.
  • the actuation signal generated on the basis of the second sensor signal can be output, and conversely.
  • the computer device may be an electronic control unit (ECU).
  • the computer-program product may be stored on a computer-readable recording medium.
  • FIG. 1 is an embodiment of an apparatus for redundant registering of an actuation of a motor-vehicle braking system
  • FIG. 2 is an embodiment of a method for operating the apparatus according to FIG. 1 .
  • FIG. 1 shows an embodiment of an apparatus for redundant registering of an actuation of a motor-vehicle braking system.
  • the apparatus permits the registering of an actuation of the brake even in the case of a sensor defect or a malfunction in the evaluating chain downstream of the sensor.
  • the apparatus includes as central components at least two sensors 10 , 12 for redundant registering of an actuation of the braking system, and also a processing device 14 coupled with the sensors 10 , 12 .
  • the processing device 14 receives on the input side two or more sensor signals and supplies on the output side an actuation signal which indicates an actuation of the braking system.
  • the actuation signal is supplied to mechanisms and systems situated downstream of the processing device 14 .
  • mention may be made here of the detection of a braking request of the driver for instance in an electrically controlled braking system (“brake by wire”) or in a braking system that has been provided for a hybrid vehicle with regenerative braking function.
  • the first sensor 10 is generally a sensor that registers a movement of a mechanical input component of the braking system.
  • the input component may be, for example, a brake pedal, a brake booster or a master cylinder.
  • the first sensor takes the form of a pedal-travel sensor 10 . It will be understood that, instead of the pedal-travel sensor 10 or in addition to the pedal-travel sensor 10 , further sensors may have been provided that are suitable to register a movement of a mechanical input component of the braking system.
  • a second sensor which in the embodiment according to FIG. 1 takes the form of a pressure sensor 12 .
  • the pressure sensor 12 registers a hydraulic pressure in the braking system in connection with the registering of an actuation of the same.
  • the pressure sensor 12 may, for example, have been arranged in the region of a master cylinder of the braking system, in order to register the master-cylinder pressure.
  • the pressure sensor 12 could also have been arranged at another place (such as on the wheel brakes or in the hydraulic power pack of a wheel-slip control system). It will be understood that, instead of a single pressure sensor 12 , several such pressure sensors may have been provided and may have been coupled with the processing device 14 .
  • the pressure sensor 12 has been provided exclusively for (redundant) registering of an actuation of the braking system.
  • a pressure sensor 12 which has been integrated within the braking system in any case (e.g., the pressure sensor of a wheel-slip control system) is used additionally for the purpose of registering an actuation of the braking system.
  • the processing device 14 includes a plurality of internal components.
  • the components may be logically or physically separate components (e.g., separate electrical or electronic circuits).
  • the centerpiece of the processing unit 14 is a central evaluating unit 16 which may be realised from a host computer (in e.g. an ECU). As illustrated in FIG. 1 , both an output signal of the pedal-travel sensor 10 and an output signal of the pressure sensor 12 are supplied to the central evaluating unit 16 .
  • the output signal of the pedal-travel sensor 10 is an analogue electrical signal which indicates an actuation travel of the brake pedal.
  • the output signal of the pressure sensor 12 is an analogue electrical signal which indicates a hydraulic pressure prevailing in the braking system.
  • the central evaluating unit 16 is designed to compare the output signal of the pedal-travel sensor 10 with a reference value and, on the basis of this comparison, to set a signal level for an actuation signal provided on the output side by the central evaluating unit 16 .
  • An exceeding or undershooting of the reference value therefore becomes perceptible in a change of level of the (binary) actuation signal.
  • An actuation of the braking system is detected by the central evaluating unit 16 whenever the output signal of the pedal-travel sensor 10 indicates that a pedal travel above the reference value has been traveled.
  • the central evaluating unit 16 is furthermore designed to check the plausibility of the output signal of the pedal-travel sensor 10 on the basis of the output signal of the pressure sensor 12 .
  • an ancillary evaluating unit 18 has been provided (e.g., as a separate electrical or electronic circuit).
  • the ancillary evaluating unit 18 receives only the output signal of the pressure sensor 12 .
  • the output signal of the pressure sensor 12 is therefore supplied in parallel to the central evaluating unit 16 and to the ancillary evaluating unit 18 .
  • the ancillary evaluating unit 18 includes a comparator 20 and also a reference-value generator 22 .
  • the comparator 20 is designed to compare the output signal of the pressure sensor 12 with an optionally adjustable reference value provided by the reference-value generator 22 . An exceeding or undershooting of the reference value brings about a change of level of an output signal of the comparator 20 .
  • the ancillary evaluating unit 18 generates in this way a binary actuation signal (in the form of the output signal of the comparator 20 ) which indicates an actuation of the braking system. An actuation is therefore detected whenever the hydraulic pressure registered by the pressure sensor 12 exceeds the reference value.
  • a checking unit 24 denoted in FIG. 1 as “watchdog” has been provided for checking the operational capability of the central evaluating unit 16 . Depending on the result of this check, the checking unit 24 drives a multiplexer 26 .
  • the multiplexer 26 receives on the input side both the actuation signal generated by the central evaluating unit 16 and the actuation signal generated by the ancillary evaluating unit 18 .
  • the checking unit 24 drives the multiplexer 26 to the effect that the processing device 14 outputs the actuation signal generated by the central evaluating unit 16 .
  • a switching of the multiplexer 26 occurs in such a manner that the processing unit 14 outputs the actuation signal generated by the ancillary evaluating unit 18 .
  • the generation of the actuation signal is therefore based primarily on the output signal of the central evaluating unit 16 (and also on the output signal of the pedal-travel sensor 10 ).
  • the redundancy provided by the pressure sensor and the ancillary evaluating unit 18 with regard to the actuation signal is made use of in the event of a fault.
  • the flow chart 200 illustrates an embodiment of a method for redundant registering of an actuation of the brake on the basis of the apparatus represented in FIG. 1 .
  • the pedal-travel sensor 10 and the pressure sensor 12 provide their output signals to the processing device 14 .
  • the output signal of the pedal-travel sensor 10 indicates a movement of the brake pedal.
  • the output signal of the pressure sensor 12 indicates a rise in pressure in the hydraulic circuit of the braking system. Both events—i.e., an actuation of the brake pedal, on the one hand, and a rise in pressure in the hydraulic circuit, on the other hand—allow an actuation of the braking system to be inferred.
  • step 206 the processing device 14 outputs an actuation signal. More precisely, selectively an actuation signal generated on the basis of the output signal of the pedal-travel sensor 10 or an actuation signal generated on the basis of the output signal of the pressure sensor 12 is output by the processing unit 14 .
  • an actuation signal generated on the basis of the output signal of the pedal-travel sensor 10 or an actuation signal generated on the basis of the output signal of the pressure sensor 12 is output by the processing unit 14 .
  • the actuation signal generated on the basis of an output signal of the pedal-travel sensor 10 is output by the processing device 14 .
  • the central evaluating unit 16 evaluates the output signal of the pedal-travel sensor 10 , as elucidated above, by comparison with a reference value, whereby an exceeding or undershooting of the reference value becomes perceptible through a change of level in the actuation signal generated by the central evaluating unit 16 .
  • the central evaluating unit 16 For the purpose of checking the plausibility of the output signal of the pedal-travel sensor 10 the central evaluating unit 16 additionally reads in the output signal of the pressure sensor 12 and likewise evaluates this output signal (as described above with reference to the ancillary evaluating unit 18 ). Provided that both output signals indicate an actuation of the braking system concordantly, a corresponding actuation signal is generated by the central evaluating unit 16 .
  • the central evaluating unit 16 If, on the other hand, a rise in hydraulic pressure in the master cylinder is detected by the central evaluating unit 16 without a corresponding change in the output signal of the pedal-travel sensor 10 , a deficient operational capability of the pedal-travel sensor 10 can be inferred by the central evaluating unit 16 . In this case, the central evaluating unit 16 generates the actuation signal indicating the actuation of the braking system on the basis of the output signal of the pressure sensor 12 .
  • the operational capability of the central evaluating unit 16 is monitored by the checking unit 24 . So long as the checking unit 24 detects a normal operational capability of the central evaluating unit 16 , the checking unit 24 drives the multiplexer 26 in such a manner that the actuation signal generated by the central evaluating unit 16 is provided by the processing device 14 by way of output signal. If, on the other hand, the checking unit 24 detects an irregular function (e.g. a failure) of the central evaluating unit 16 , the multiplexer 26 is driven in such a manner that the actuation signal generated by the ancillary evaluating unit 18 is output by the processing device 14 . In this case, the redundant signal path illustrated in FIG. 1 , which includes the pressure sensor 12 and also the ancillary evaluating unit 18 , accordingly comes into effect.
  • the output signal of the pressure sensor 12 is evaluated by the evaluating unit 18 (e.g., as a separate circuit), which is different from the central evaluating unit 16 (computer or ECU).
  • the output signal of the pressure sensor 12 can therefore be used not only for checking the plausibility of the output signal of the pedal-travel sensor 10 but also as a fall-back solution in the case of deficient operational capability of the central evaluating unit 16 .
  • the method described herein for redundant registering of the actuation of the brake can be realised without additional sensorics.
  • the approach presented here can be used both for plausibility-checking purposes and as a fall-back solution (with automatic switching in the event of a fault).
  • the ancillary evaluating unit 18 may be realised advantageously as a separate evaluating circuit which is operated independently of a master computer (central evaluating unit 16 ).

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)
  • Regulating Braking Force (AREA)
US14/009,615 2011-04-05 2012-03-01 Technique for Redundant Registration of an Actuation of a Motor-Vehicle Braking System Abandoned US20140129108A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102011016125A DE102011016125A1 (de) 2011-04-05 2011-04-05 Technik zum redundanten Erfassen einer Betätigung einer Kraftfahrzeug-Bremsanlage
DE102011016125.2 2011-04-05
PCT/EP2012/000897 WO2012136293A1 (fr) 2011-04-05 2012-03-01 Technique de détection redondante de l'actionnement d'un système de freinage d'un véhicule automobile

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/000897 A-371-Of-International WO2012136293A1 (fr) 2011-04-05 2012-03-01 Technique de détection redondante de l'actionnement d'un système de freinage d'un véhicule automobile

Related Child Applications (1)

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US16/654,823 Continuation US11292446B2 (en) 2011-04-05 2019-10-16 Technique for redundant registration of an actuation of a motor-vehicle braking system

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US16/654,823 Active US11292446B2 (en) 2011-04-05 2019-10-16 Technique for redundant registration of an actuation of a motor-vehicle braking system

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US11167735B2 (en) 2017-02-14 2021-11-09 Zf Cv Systems Europe Bv Method for operating a brake of a motor vehicle, vehicle control device and vehicle
US20220017059A1 (en) * 2020-07-20 2022-01-20 Robert Bosch Gmbh Method for monitoring the operational reliability of a braking system in a vehicle
US11312343B2 (en) * 2016-12-27 2022-04-26 Zf Active Safety Gmbh Motor vehicle control unit for an electric parking brake
US20220289156A1 (en) * 2021-03-12 2022-09-15 Hyundai Mobis Co., Ltd. Integrated electronic brake system and control method thereof
US11560129B2 (en) * 2018-10-18 2023-01-24 Ford Global Technologies, Llc Method for operation of a brake back-up system of a motor vehicle

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DE102016221584B4 (de) 2016-11-03 2019-09-05 Audi Ag Verfahren zur Steuerung einer Bremsanlage eines Kraftfahrzeugs
DE102018216105A1 (de) * 2018-09-21 2020-03-26 Audi Ag Verfahren zur Ermittlung einer Fahrerzustandsinformation und Kraftfahrzeug
CN109435933B (zh) * 2018-10-12 2020-07-28 安徽江淮汽车集团股份有限公司 刹车故障控制方法
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DE102022213115A1 (de) 2022-12-06 2024-06-06 Robert Bosch Gesellschaft mit beschränkter Haftung Betriebsverfahren für eine Pedalanordnung für sicherheitskritische Fahrzeugsystemel
DE102022213119A1 (de) 2022-12-06 2024-06-06 Robert Bosch Gesellschaft mit beschränkter Haftung Betriebsverfahren für eine Betätigungsanordnung für sicherheitskritische Fahrzeugsysteme
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US20200039493A1 (en) 2020-02-06
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US11292446B2 (en) 2022-04-05
DE102011016125A1 (de) 2012-10-11

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