Fluid-pressure and analogous brake systems – Speed-controlled – Having a valve system responsive to a wheel lock signal
Patent
1991-03-25
1993-05-04
Graham, Matthew C.
Fluid-pressure and analogous brake systems
Speed-controlled
Having a valve system responsive to a wheel lock signal
3031161, 3031162, B60T 848
Patent
active
052074854
ABSTRACT:
In a drive-slip control device (ASR) and anti-lock system (ABS) in a road vehicle with a hydraulic multi-circuit brake system, the return-flow pump assigned to the brake circuit of the driven vehicle wheels is used as an auxiliary pressure source for the ASR. The discharge of a pressure accumulator connected to the return line of the brake circuit of the driven vehicle wheels, after the conclusion of a drive-slip control phase, is achieved when the return-flow pump continues to be maintained in the conveying mode for a delay time commencing with the disappearance of the situation requiring control. The ASR control valve provided for shutting off the brake unit from the main brake line of the brake circuit of the driven vehicle wheels is maintained in its closing position assigned to the ASR mode. A pressure relief valve is connected in parallel with the ASR control valve. For the variable presetting of the delay time, a buffer accumulator is equipped with a pressure monitor. The output signal characteristic of the relieved buffer accumulator is used for limiting the delay time.
REFERENCES:
patent: 4861116 (1989-08-01), Bernhardt et al.
patent: 4898430 (1989-02-01), Becker-Endrig Keit et al.
patent: 4971400 (1990-11-01), Jonner
patent: 5039176 (1991-08-01), Hellmann et al.
Graham Matthew C.
Mercedes-Benz AG
Young Lee W.
LandOfFree
Road vehicle drive-slip control device and anti-lock system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Road vehicle drive-slip control device and anti-lock system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Road vehicle drive-slip control device and anti-lock system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1970652