Vehicular anti-brake lock system and method of controlling braki

Details Vehicular anti-brake lock system and method of controlling braki Vehicular anti-brake lock system and method of controlling braki

1985-09-30

1987-03-03

Reger, Duane A.

Fluid-pressure and analogous brake systems

Speed-controlled

Having a valve system responsive to a wheel lock signal

303100, 303DIG4, B60T 860

Patent

active

046471154

ABSTRACT:
A wheel anti-blocking control system (ABS), in which, subsequent to a brake pressure drop, the first brake pressure rise pulse .DELTA.P.sub.2 is controlled, in dependence on the preceding brake pressure drop (.DELTA.P.sub.1) and on a quotient defined by the relationship: ##EQU1## in which +.omega..sub.m and -.omega..sub.m are representative of maximum angular acceleration/deceleration of the respective wheel being controlled and .alpha. is a factor somewhat less than unity, and which may vary in dependence on the direction of movement of the vehicle, for example whether the vehicle is moving in a straight path or is moving along a curve. If moving along a curve, so that angular acceleration is involved, the factor .alpha. is reduced.

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patent: 4005910 (1977-02-01), Leiber et al.
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patent: 4054328 (1977-10-01), Leiber et al.
patent: 4392202 (1983-07-01), Matsuda
patent: 4517647 (1985-05-01), Harada et al.

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