IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0737155
(1985-05-23)
|
우선권정보 |
DE-3419714 (1984-05-26) |
발명자
/ 주소 |
- Leiber Heinz (Oberriexingen DEX)
|
출원인 / 주소 |
- Robert Bosch GmbH (Stuttgart DEX 03)
|
인용정보 |
피인용 횟수 :
2 인용 특허 :
3 |
초록
▼
To simplify the anti-lock brake system in which two brake circuits (I,II) are used, connected to diagonally located wheels (2,3; 1,4), magnetic valves are provided in which one braking circuit fully controls the wheels thereof and the wheels of the other braking circuits are controlled by a slave or
To simplify the anti-lock brake system in which two brake circuits (I,II) are used, connected to diagonally located wheels (2,3; 1,4), magnetic valves are provided in which one braking circuit fully controls the wheels thereof and the wheels of the other braking circuits are controlled by a slave or follower valve system (9,10) which includes a biassed valve (10) controlling the braking pressure at the front wheel of the second braking circuit (1) with a difference pressure, so that the second slave control valve operates as a differential pressure control valve (10,32). The differential can be controlled as a function of absolute braking pressure, as sensed, for example, by a brake pressure piston (30) and a biassing spring (30a) therefor.
대표청구항
▼
Automotive vehicle wheel anti-lock brake system (ABS) in which two brake circuits (I, II) are provided, acting on first diagonally positioned front and rear wheels (1, 4) and second diagonally positioned front and rear wheels (2, 3) of the vehicle, having a least one rear speed wheel sensor (3a, 4a)
Automotive vehicle wheel anti-lock brake system (ABS) in which two brake circuits (I, II) are provided, acting on first diagonally positioned front and rear wheels (1, 4) and second diagonally positioned front and rear wheels (2, 3) of the vehicle, having a least one rear speed wheel sensor (3a, 4a) coupled to at least one (4) wheels (3, 4) of the vehicle and providing a rear wheel speed signal; a front wheel speed sensor (1a, 20) coupled to at least one of the front wheels (1) of the vehicle and providing a front wheel speed signal; a first magnetic control valve (7, 22, 35) controlling brake fluid pressure at the first rear wheel (4, 4′); a second control valve (9, 9′) controlling brake fluid pressure to the second rear wheel (3), coupled to said first, magnetic control valve (7, 22, 35) and forming a first slave control valve, said second control valve controlling brake fluid pressure in the second rear wheel (3) as a function of the operation of the first, and magnetic control valve; and a speed signal processing and control signal generating circuit (8) receiving the wheel speed signals and providing output signals for controlling the first magnetic brake control valve (7, 22, 35) in dependence on the rotational behavior of the wheels, as sensed by said wheel speed signal sensors and provided to said signal processing and control signal generating circuit (8), said system comprising, in accordance with the invention, a third, and magnetic control valve (6, 21) controlling brake fluid pressure at the first front wheel (1), connected to and controlled by the speed signal processing and control signal generating circuit (8) and responding upon a tendency of said front wheel to lock; and a fourth control valve (10,32) controlling brake fluid pressure at the second front wheel (2) coupled to said third, and magnetic control valve (6) and forming a second slave control valve, said fourth control valve forming the second slave valve controlling brake fluid pressure in a brake associated with the second front wheel (2) to a level which differs from the brake pressure applied to the first front wheel (1).
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