WO2007057415A1 - Procede pour determiner une pression prealable dans une installation de freinage d'un vehicule automobile - Google Patents

Procede pour determiner une pression prealable dans une installation de freinage d'un vehicule automobile Download PDF

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Publication number
WO2007057415A1
WO2007057415A1 PCT/EP2006/068504 EP2006068504W WO2007057415A1 WO 2007057415 A1 WO2007057415 A1 WO 2007057415A1 EP 2006068504 W EP2006068504 W EP 2006068504W WO 2007057415 A1 WO2007057415 A1 WO 2007057415A1
Authority
WO
WIPO (PCT)
Prior art keywords
motor
motor vehicle
brake system
pressure
current
Prior art date
Application number
PCT/EP2006/068504
Other languages
German (de)
English (en)
Inventor
Rüdiger BRIESEWITZ
Original Assignee
Continental Teves Ag & Co. Ohg
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 Continental Teves Ag & Co. Ohg filed Critical Continental Teves Ag & Co. Ohg
Publication of WO2007057415A1 publication Critical patent/WO2007057415A1/fr

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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
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
    • B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
    • B60T8/40—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition comprising an additional fluid circuit including fluid pressurising means for modifying the pressure of the braking fluid, e.g. including wheel driven pumps for detecting a speed condition, or pumps which are controlled by means independent of the braking system
    • B60T8/404—Control of the pump unit
    • B60T8/4059—Control of the pump unit involving the rate of delivery
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
    • B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
    • B60T8/40—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition comprising an additional fluid circuit including fluid pressurising means for modifying the pressure of the braking fluid, e.g. including wheel driven pumps for detecting a speed condition, or pumps which are controlled by means independent of the braking system

Definitions

  • the invention relates to a method for determining a form in a motor vehicle brake system according to the O-berbegriff of claim 1 and a pressure control device for carrying out the method.
  • ABS anti-lock braking systems
  • ESP driving stability regulations
  • a method for estimating a prevailing between a master cylinder and an intake valve of a wheel brake cylinder of a motor vehicle brake pre-pressure of a clocked motor of a pump, which for the return promotion of brake fluid from an output side of the wheel brake cylinder arranged storage chamber is used in the master cylinder, and used in the storage chamber determined or measured storage chamber pressure.
  • the object of the invention is to provide a method with which the form can be determined in a simple manner without the use of a pressure sensor.
  • the invention is based on the idea of evaluating the motor current of a pump starting against the admission pressure to be determined. For this purpose, at least a short voltage pulse is applied to the clocked, in particular by pulse width modulation (PWM), operated motor of the return pump, and it is considered the starting flow on the engine.
  • PWM pulse width modulation
  • the pump is not or only slightly set in motion by the application of a voltage pulse to the motor.
  • the movable part of the periodically operating motor in particular the rotor in a direct current motor, by a maximum of two periods (revolutions), in particular by a maximum of one period, more preferably by a maximum of half a period and most preferably by a maximum of one quarter period, moving.
  • the advantage achieved with the invention lies in the ability to dispense with a pressure sensor for measuring the form.
  • a working according to the invention brake pressure control device is cheaper, since the pressure sensor is omitted.
  • FIG. 1 shows an example of a hydraulic circuit diagram of a slip-controlled motor vehicle brake system 1, which does not include a pressure sensor for measuring the admission pressure.
  • a driving stability control e.g., ESP brake control
  • the admission pressure must be determined in another way in order to ensure the functionality of the electronic brake system.
  • the admission pressure is determined by the pump motor 5 being pulsed with a short voltage pulse.
  • the pump 4 wants to start against the form of the master cylinder 2.
  • the Torque is proportional to the current consumed by the motor. From a stored calibration database can be closed by the current on the form.
  • the sampling frequency of the current response must be high enough and the inertia of the motor-pump unit must be dimensioned accordingly.
  • the pump does not have to be set in motion, but it is sufficient if, within a relevant pressure range, e.g. 0-300 bar, the correlation of voltage pulse duration and current response is ensured.
  • the motor current is proportional to the torque on the motor shaft, which in turn is proportional to the pending on the pump piston pressure.

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Regulating Braking Force (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)

Abstract

L'invention concerne un procédé pour déterminer une pression préalable régnant entre un cylindre de frein principal (2) et une soupape d'entrée d'un cylindre de frein de roue d'une installation de freinage d'un véhicule automobile avec un système de frein électronique, le courant de moteur d'un moteur cadencé (5) d'une pompe (4) de refoulement de liquide de frein étant pris en compte en mesurant le courant lors du démarrage après l'application d'au moins une impulsion de tension au moteur (5).
PCT/EP2006/068504 2005-11-21 2006-11-15 Procede pour determiner une pression prealable dans une installation de freinage d'un vehicule automobile WO2007057415A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005055780.5 2005-11-21
DE200510055780 DE102005055780A1 (de) 2005-11-21 2005-11-21 Verfahren zur Bestimmung eines Vordrucks bei einer Kraftfahrzeug-Bremsanlage

Publications (1)

Publication Number Publication Date
WO2007057415A1 true WO2007057415A1 (fr) 2007-05-24

Family

ID=37561134

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2006/068504 WO2007057415A1 (fr) 2005-11-21 2006-11-15 Procede pour determiner une pression prealable dans une installation de freinage d'un vehicule automobile

Country Status (2)

Country Link
DE (1) DE102005055780A1 (fr)
WO (1) WO2007057415A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012025336A1 (fr) * 2010-08-26 2012-03-01 Continental Teves Ag & Co. Ohg Procédé de mesure de pression, sans capteur de pression, dans un régulateur de pression d'un système de freinage d'un véhicule à moteur, et système de freinage d'un véhicule à moteur présentant un régulateur de pression pour lequel le procédé est mis en oeuvre

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020019335A (ja) * 2018-07-31 2020-02-06 ロベルト・ボッシュ・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツングＲｏｂｅｒｔ Ｂｏｓｃｈ Ｇｍｂｈ ブレーキ制御装置及びブレーキ制御方法
DE102019212968A1 (de) * 2019-08-29 2021-03-04 Continental Teves Ag & Co. Ohg Verfahren zum Ermitteln eines hydraulischen Drucks in einem Bremssystem und Bremssystem

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4303206A1 (de) * 1993-02-04 1994-08-11 Teves Gmbh Alfred Verfahren und Schaltungsanordnung zum Bestimmen der Pedalkraft als Regelgröße für eine Bremsanlage mit Blockierschutzregelung
DE4440531A1 (de) * 1993-11-18 1995-05-24 Volkswagen Ag Verfahren zur größenmäßigen Ermittlung von Hydraulikdrücken in einer blockiergeschützten Kfz-Bremsanlage
DE19528697A1 (de) * 1995-08-04 1997-02-06 Bosch Gmbh Robert Verfahren und Vorrichtung zur Ermittlung einer Druckgröße
DE19961293A1 (de) * 1998-12-28 2000-06-29 Bosch Gmbh Robert Verfahren und Vorrichtung zur Druckermittlung in Bremssystemen
DE19946777A1 (de) * 1999-09-29 2001-04-12 Bosch Gmbh Robert Verfahren und Vorrichtung zur Abschätzung eines Vordrucks bei einer Kraftfahrzeug-Bremsanlage

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9515542D0 (en) * 1995-07-28 1995-09-27 Lucas Ind Plc Accumulator pressure control in vehicle brake systems
WO2005007475A1 (fr) * 2003-07-11 2005-01-27 Continental Teves Ag & Co.Ohg Procede de regulation electronique pour un systeme de freinage de vehicule automobile a regulation du glissement

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4303206A1 (de) * 1993-02-04 1994-08-11 Teves Gmbh Alfred Verfahren und Schaltungsanordnung zum Bestimmen der Pedalkraft als Regelgröße für eine Bremsanlage mit Blockierschutzregelung
DE4440531A1 (de) * 1993-11-18 1995-05-24 Volkswagen Ag Verfahren zur größenmäßigen Ermittlung von Hydraulikdrücken in einer blockiergeschützten Kfz-Bremsanlage
DE19528697A1 (de) * 1995-08-04 1997-02-06 Bosch Gmbh Robert Verfahren und Vorrichtung zur Ermittlung einer Druckgröße
DE19961293A1 (de) * 1998-12-28 2000-06-29 Bosch Gmbh Robert Verfahren und Vorrichtung zur Druckermittlung in Bremssystemen
DE19946777A1 (de) * 1999-09-29 2001-04-12 Bosch Gmbh Robert Verfahren und Vorrichtung zur Abschätzung eines Vordrucks bei einer Kraftfahrzeug-Bremsanlage

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012025336A1 (fr) * 2010-08-26 2012-03-01 Continental Teves Ag & Co. Ohg Procédé de mesure de pression, sans capteur de pression, dans un régulateur de pression d'un système de freinage d'un véhicule à moteur, et système de freinage d'un véhicule à moteur présentant un régulateur de pression pour lequel le procédé est mis en oeuvre
US8527176B2 (en) 2010-08-26 2013-09-03 Continental Teves Ag & Co. Ohg Method for measuring pressure in a pressure regulation unit of a motor vehicle braking system, and a motor vehicle braking system in which the method is implemented

Also Published As

Publication number Publication date
DE102005055780A1 (de) 2007-05-24

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