EP1879776A1 - Procede et dispositif pour commander un systeme de freinage de vehicule - Google Patents

Procede et dispositif pour commander un systeme de freinage de vehicule

Info

Publication number
EP1879776A1
EP1879776A1 EP06742593A EP06742593A EP1879776A1 EP 1879776 A1 EP1879776 A1 EP 1879776A1 EP 06742593 A EP06742593 A EP 06742593A EP 06742593 A EP06742593 A EP 06742593A EP 1879776 A1 EP1879776 A1 EP 1879776A1
Authority
EP
European Patent Office
Prior art keywords
brake
actuator
forces
control
vehicle
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.)
Withdrawn
Application number
EP06742593A
Other languages
German (de)
English (en)
Inventor
Ulrich Reith
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.)
ZF Friedrichshafen AG
Original Assignee
ZF Friedrichshafen AG
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 ZF Friedrichshafen AG filed Critical ZF Friedrichshafen AG
Publication of EP1879776A1 publication Critical patent/EP1879776A1/fr
Withdrawn legal-status Critical Current

Links

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
    • B60T7/12—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger
    • B60T7/122—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger for locking of reverse movement
    • 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
    • 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
    • B60T2201/00—Particular use of vehicle brake systems; Special systems using also the brakes; Special software modules within the brake system controller
    • B60T2201/06—Hill holder; Start aid systems on inclined road
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D66/00—Arrangements for monitoring working conditions, e.g. wear, temperature
    • F16D2066/005—Force, torque, stress or strain

Definitions

  • the invention relates to a method and a device for controlling a vehicle brake system according to the preamble of patent claims 1 and 7, respectively.
  • DE 42 03 541 A1 discloses a so-called traction help for a fluid-operated brake device of a vehicle, with a service brake valve, with a check valve, with a wheel brake cylinder and with a brake holding valve, in which at least approximately keeping constant the set during vehicle standstill brake pressure in the brake circuit pressure monitoring and / or Druckmediumach spallglieder are provided.
  • DE 101 35 744 A1 discloses a device and a method for preventing the rolling back of a vehicle with a vehicle brake system, which device comprises a device for influencing the vehicle brake pressure, a device which is capable of detecting a forward movement of the vehicle, and a vehicle Control device, which is connected to said devices, comprises.
  • a signal is to be generated, which actuates at a standstill or near standstill of the vehicle acting on a transmission brake in addition to the brakes of the vehicle braking system, wherein upon detection of a forward movement of the vehicle, the control device, the brake pressure in the device for influencing the Reduced vehicle brake pressure and releases the brake acting on the transmission.
  • the braking force resulting from the application and pressing of the brake pad depends mainly on the applied contact pressure, the state of the rotating friction surface (worn, wet, dry, rough, smooth, cold, hot, etc.) and the condition of the brake pad , Accordingly, from the force with which the brake pad is pressed onto the friction surface, only inaccurately deduce which braking force actually acts on the vehicle.
  • a certain deceleration of the vehicle is known to be set via the manipulated variable of the abovementioned contact pressure.
  • the driver or an automatic braking system thus vary the braking force until the desired vehicle deceleration is achieved. At standstill of the vehicle while much more braking force is usually set than would actually be necessary to keep the vehicle in the desired position.
  • the invention has for its object to provide a method for controlling a vehicle brake system, which effectively avoids the disadvantages mentioned with simple measures and in the result, in particular, the reliability of the same and the ride comfort further improved. Another object is to provide a suitable apparatus for carrying out this method.
  • the invention therefore relates to a method for controlling a vehicle brake system having at least one wheel brake with at least one actuator for actuating at least one brake element, wherein the at least one actuator can be controlled by means of an electronic control and regulation unit.
  • the forces acting on the bearing point of the at least one actuator or brake element are detected by means of at least one sensor and converted into measurement signals, and that these measurement signals are fed to the control and regulation unit and there to generate control signals for controlling or Control of the operation of the at least one actuator can be used.
  • a control variable is provided in a particularly simple and cost-effective manner to the control and regulation unit, which is suitable for further improving the operational safety of the vehicle brake system and the ride comfort.
  • the detected measured values of the forces currently acting on the bearing point of the at least one actuator or brake element are used for controlling and regulating a traction aid in such a way that an automatic release of the wheel brake performed as soon as the driveline of the vehicle transmits sufficient torque to hold the same in its current position.
  • the detected measured values of the forces currently acting on the bearing point of the at least one actuator or brake element are used to control and regulate wheel brake systems provided with ABS, ASR and / or ESP.
  • the signals generated by means of the at least one sensor of the forces currently acting on the bearing of the at least one actuator or brake member are electrically or non-contact fed to the control and regulation unit.
  • a piezoelectric force transducer or any other suitable force transducer is used as the sensor, a spring body, with the help of which forces to be measured are traced back to length or path changes and determined by length or displacement sensors.
  • the device for controlling a vehicle brake system having at least one wheel brake with at least one actuator for actuating at least one brake element, wherein the at least one actuator by means of an electronic see control and control unit is controlled, is characterized essentially by the fact that at least one bearing point of the actuator or brake member is assigned at least one sensor for detecting the current acting on the bearing forces, which in turn is in signal communication with the control unit.
  • the at least one wheel brake can be formed both by a drum brake and by a disk brake.
  • the senor may be electrically or contactlessly connected to the control and regulation unit signal technology.
  • the senor may comprise a spring body, with the aid of which forces to be measured are traced back to length or path changes and determined with length or displacement sensors, be formed by a piezoelectric force transducer or any other suitable force transducer.
  • each sensor is assigned to detect the forces acting on the respective bearing and all sensors with the controller - And control unit, wherein from the sum of the individual forces, the actually acting braking force of the vehicle can be determined and in evaluation of the braking force, a control signal for the / the actuator / s can be created.
  • FIG. 1 shows an inventively designed vehicle brake system in a first embodiment
  • FIG. 2 shows such a vehicle brake system in a further variant.
  • FIG. 1 schematically shows a vehicle brake system with a known wheel brake 1 in the form of a drum brake, in this case a so-called duplex brake, which has two brake elements 2 with brake shoes, which are each covered with a brake pad 3.
  • the brake members 2 and brake shoes are in turn against the inner contour of a circulating with a not-shown wheel of a vehicle brake drum 4 can be applied and actuated by means of an actuator 5 in the form of a fluid-operated wheel brake cylinder.
  • the actuators 5 can also be actuated by means of compressed air or electromechanically, which is accordingly covered by the invention.
  • the actuators 5 are further connected by signal technology to an electronic control and regulation unit 6 and can be actuated by means of this, in accordance with the braking request signaled by the vehicle driver by actuating a brake pedal or triggered by a control function.
  • corresponding signals 9 are generated, which are then supplied to the electronic control and regulation unit 6 for further evaluation, electrically or non-contact, for example by radio.
  • the actually acting braking force can then be determined, which serves to generate control signals 10 for the activation of the actuators 5.
  • ABS antilock braking system
  • ASR traction control
  • ESP Electronic Stability Program
  • the actuators 5 of wheel brake systems can then be controlled more precisely with ABS, ASR and / or ESP, since such wheel brake systems now no longer depend solely on the above wheel speed information for the detection of the road conditions.
  • the interventions of the individual wheel brakes 1 of a vehicle can be scaled more accurately and matched to one another.
  • sensors 8 these can be formed, for example, by spring bodies known per se, with the aid of which forces to be measured are traced back to length or path changes and determined with length or displacement sensors.
  • piezoelectric force transducers or other known and suitable force transducer can be used (not shown in detail).
  • FIG. 2 differs from that according to FIG. 1 essentially in that the wheel brake 1 is formed by a drum brake in the form of a simplex brake, wherein only the bearings 11 of the brake elements 2 sensors 8 are assigned, which in turn on the Bearings 11 of the brake elements 2 detect acting forces and generate corresponding signals 9 and perform for further evaluation of the control and regulation unit 6.
  • bearing points 7 of the actuators 5 and bearing points 11 of the brake elements 2 with suitable sensors 8 for detecting the forces acting thereon as a result of the actuation of the actuators 5, whereby optionally an even more precise control of the actuators. 5 is to be expected (not shown in detail).
  • the above embodiments are exclusively based on drum brakes.
  • vehicle brake systems with disc brakes known per se or a combination of drum and disc brakes, which also be fitted to disc brakes, the bearings of actuators and / or brake organs with corresponding sensors can (not shown).

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Regulating Braking Force (AREA)

Abstract

La présente invention concerne un procédé et un dispositif pour commander un système de freinage de véhicule. Ce dispositif comprend au moins un frein sur roue (1) avec au moins un actionneur (5) permettant d'actionner au moins un organe de freinage (2). Ledit actionneur (5) peut être commandé au moyen d'une unité de commande et de régulation électronique (6). Afin d'améliorer la sécurité de fonctionnement et le confort de conduite de ce système de freinage de véhicule, les forces agissant sur le point d'appui (7, 11) dudit actionneur (5) ou de l'organe de freinage (2) sont détectées au moyen d'au moins un capteur (8) et sont transformées en signaux de mesure (9) qui sont ensuite conduits à l'unité de commande et de régulation (6) et y sont utilisés pour produire des signaux de commande (10) permettant de commander ou de réguler l'actionnement dudit actionneur (5).
EP06742593A 2005-05-11 2006-04-15 Procede et dispositif pour commander un systeme de freinage de vehicule Withdrawn EP1879776A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005021719A DE102005021719A1 (de) 2005-05-11 2005-05-11 Verfahren und Vorrichtung zur Steuerung eines Fahrzeugbremssystems
PCT/EP2006/003490 WO2006119837A1 (fr) 2005-05-11 2006-04-15 Procede et dispositif pour commander un systeme de freinage de vehicule

Publications (1)

Publication Number Publication Date
EP1879776A1 true EP1879776A1 (fr) 2008-01-23

Family

ID=36808701

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06742593A Withdrawn EP1879776A1 (fr) 2005-05-11 2006-04-15 Procede et dispositif pour commander un systeme de freinage de vehicule

Country Status (3)

Country Link
EP (1) EP1879776A1 (fr)
DE (1) DE102005021719A1 (fr)
WO (1) WO2006119837A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2917039B1 (fr) * 2007-06-06 2010-01-08 Renault Sas Systeme et procede de commande d'un frein de stationnement electrique pour l'aide au demarrage en cote.
DE102011113119A1 (de) * 2011-09-09 2013-03-14 Knorr-Bremse Systeme für Schienenfahrzeuge GmbH Elektronische Steuereinrichtung für ein Schienenfahrzeug, Bremsanlage für ein Schienenfahrzeug sowie Verfahren zur Steuerung einer Bremsvorrichtung eines Schienenfahrzeugs
DE102017009125A1 (de) 2017-06-30 2019-01-03 Knorr-Bremse Systeme für Schienenfahrzeuge GmbH Sensoranordnung und Verfahren zum Ermitteln einer Bremskraft
DE102017217413B4 (de) * 2017-09-29 2022-02-10 Continental Teves Ag & Co. Ohg Verfahren zum Ermitteln einer Betriebsgröße einer Trommelbremse, Trommelbremsanordnungen, Auswertevorrichtung und Speichermedium
DE102019208356B3 (de) * 2019-06-07 2020-08-06 Continental Teves Ag & Co. Ohg Verfahren zum Ermitteln einer Betriebsgröße einer Trommelbremse und Trommelbremsanordnung
CN115876368B (zh) * 2022-12-28 2024-05-31 中机试验装备股份有限公司 一种用于高温高压水环境的测力传感器及其装配方法

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Publication number Priority date Publication date Assignee Title
DE1914336A1 (de) * 1969-03-21 1970-10-01 Daimler Benz Ag Vorrichtung zum Regeln der Bremsen eines Fahrzeuges,insbesondere zum Verhindern des Blockierens der Raeder
DE4024811C2 (de) * 1990-08-04 1997-02-20 Telefunken Microelectron Vorrichtung zur Steuerung des Bremsvorgangs von Kraftfahrzeugen
DE4203541B4 (de) * 1992-02-07 2006-07-06 Zf Friedrichshafen Ag Anfahrhilfe für eine fluidbetätigte Bremsvorrichtung eines Fahrzeuges
DE19526645B4 (de) * 1995-07-21 2008-12-18 Robert Bosch Gmbh Elektromotorische Radbremse für Fahrzeuge
DE19639686A1 (de) * 1996-09-26 1998-04-16 Siemens Ag Bremsanlage für ein Kraftfahrzeug
DE19800422A1 (de) * 1998-01-08 1999-07-15 Bosch Gmbh Robert Bremsvorrichtung für Fahrzeuge
DE10135744A1 (de) * 2001-07-21 2003-02-06 Zahnradfabrik Friedrichshafen Vermeidung des Rückrollens eines Fahrzeuges
DE10242122A1 (de) * 2002-09-11 2004-03-25 Robert Bosch Gmbh Hillholder-System mit radkraftmessender Sensorik

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2006119837A1 *

Also Published As

Publication number Publication date
DE102005021719A1 (de) 2006-11-16
WO2006119837A1 (fr) 2006-11-16

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