Vehicle brake system of a motor vehicle
IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0540275
(2000-03-31)
|
우선권정보 |
DE9744112 (1997-10-06) |
발명자
/ 주소 |
|
출원인 / 주소 |
- Lucas Industries public limited company, GBX
|
대리인 / 주소 |
MacMillan, Sobanski & Todd, LLC
|
인용정보 |
피인용 횟수 :
1 인용 특허 :
8 |
초록
▼
The invention relates to a vehicle brake system of a motor vehicle, with an electronically controllable brake booster, comprising a vacuum chamber and a pressure chamber which are separated from each other by a movable wall, a control valve arrangement which can be actuated by an electro-magnetic ac
The invention relates to a vehicle brake system of a motor vehicle, with an electronically controllable brake booster, comprising a vacuum chamber and a pressure chamber which are separated from each other by a movable wall, a control valve arrangement which can be actuated by an electro-magnetic actuator, wherein a pressure difference between the pressure chamber and the vacuum chamber is adjustable, with the movable wall changing its position as a function of the pressure conditions in the vacuum chamber and in the pressure chamber, thereby actuating a master cylinder, with the electromagnetic being supplied with current signals by an electronic control unit during operation, which the electronic control unit generates as a function of driving dynamics conditions or external influences, characterised in that upon the presence of certain driving dynamics conditions or external influences, or combinations thereof which render the actuation of the master cylinder necessary with a predetermined probability within a predetermined time interval, the electronic control unit generates control signals for the electromagnetic actuation means, so that the control valve arrangement is actuated to such a degree that play, backlash, or tolerance-related free travel in at least part of the vehicle brake system is overcome.
대표청구항
▼
[ What is claimed is:] [1.] A vehicle brake system of a motor vehicle, wherein brake means at its wheels can be subjected to pressure via a master cylinder, with an electronically controllable brake booster, comprisinga vacuum chamber and a pressure chamber which are separated from each other by a m
[ What is claimed is:] [1.] A vehicle brake system of a motor vehicle, wherein brake means at its wheels can be subjected to pressure via a master cylinder, with an electronically controllable brake booster, comprisinga vacuum chamber and a pressure chamber which are separated from each other by a movable wall,a control valve arrangement which can be actuated by means of an electromagnetic actuation means and by means of which a pressure difference between the pressure chamber and the vacuum chamber is adjustable, with the movable wall changing its position as a function of the pressure conditions in the vacuum chamber and in the pressure chamber, thereby actuating a master cylinder, withthe electromagnetic actuation means being supplied with current signals by an electronic control unit during operation, which the electronic control unit generates as a function of driving dynamics conditions or external influences, which are sensed by sensors connected with the electric control unit, andupon the presence of certain driving dynamics conditions or external influences, or combinations thereof which render the actuation of the master cylinder necessary with a predetermined probability within a predetermined time interval, the electronic control unit generates control signals for the electromagnetic actuation means, so that the control valve arrangement is actuated to such a degree that at least one of play, backlash, and tolerance-related free travel in at least the brake booster is overcome, characterised in thatno actuation of the brake means takes place,the electronic control unit comprisesa computer for combining the signals sensed by the sensors in accordance with predetermined rules, anda memory for storing the predetermined rules as well as empirical values obtained during the operation of the vehicle brake system, andthe empirical values stored in the memory are combinations of sensed sensor signals as well as of probability values by means of which upon the respective combination of sensed sensor signals being present, a braking operation was carried out within a time interval in the past.
이 특허에 인용된 특허 (8)
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Voges Dieter,DEX ; Lubischer Frank,DEX, Electronically adjustable brake system for motor vehicles.
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Lawrence Alan,GB3, Electronically controlled brake booster and method of operation thereof.
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Dieringer Werner,DEX, Electronically controlled braking system.
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Farr Glyn P. R. (Warwickshire GB2), Fluid-pressure operated boosters for vehicle braking systems.
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Burgdorf Jochen,DEX ; Kircher Dieter,DEX ; Graber Johannes,DEX ; Drumm Stefan,DEX, Method of operating an anti-lock automotive vehicle brake system.
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Clauss Johannes,DEX ; Klinkner Walter,DEX ; Knoff Bernd,DEX ; Steiner Manfred,DEX, Process for carrying out an automatic braking operation.
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Steiner Manfred (Winnenden DEX) Nell Joachim (Ostfildern DEX), Road vehicle brake-pressure control device.
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Zimmer Richard (Fellbach DEX) Gautsch Wolfgang (Kngen DEX) Mller Armin (Backnang DEX) Freitag Rainer (Nrtingen DEX), Road vehicle hydraulic service-brake system and activation process.
이 특허를 인용한 특허 (1)
-
Christoph Linden DE; Gregor Godlewsky DE; Lorenz Maack DE, Electronically controllable brake booster.
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