Fluid-pressure and analogous brake systems – Speed-controlled – Having a valve system responsive to a wheel lock signal
Patent
1991-03-08
1992-11-17
Graham, Matthew C.
Fluid-pressure and analogous brake systems
Speed-controlled
Having a valve system responsive to a wheel lock signal
303 95, 303DIG4, 36442601, B60T 860, B60T 826
Patent
active
051637421
ABSTRACT:
A method utilizes components of an existing anti-lock brake system (ABS) in order thereby to achieve an automatically self-optimizing inter-axle brake-pressure distribution acting far below the wheel lock limit. For this purpose, the brake pressure and, hence, the brake-force distribution are regulated axle-specifically far below the wheel lock limit too. An immediate dynamic intervention is, on one hand, effected in the case of sufficiently large wheel-speed differences between the axles. On the other hand, an adaptive predetermination of correct brake-force distributions is made the basis for each current regulating intervention. Even before the occurrence of large speed differences, the brake-force distribution expedient in each case for these is here predictively determined, stored, and, if required, correspondingly adapted to current requirements, i.e. corrected, in the course of subsequent dynamic braking demands. Requisite determination parameters are obtained for each journey either via characteristic diagrams specific to the family of vehicles or are determined individually on the individual vehicle by a learning approximation routine.
REFERENCES:
patent: 4402047 (1983-08-01), Newton et al.
patent: 4606586 (1986-08-01), Eckert et al.
patent: 4685745 (1987-08-01), Reinecke
Aminpour Ali
Millner Norman
Scheer Wolfgang
Topfer Bernhard
Graham Matthew C.
Mercedes-Benz AG
Poon Peter M.
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