Fluid-pressure and analogous brake systems – Speed-controlled – Having a valve system responsive to a wheel lock signal
Patent
1975-08-07
1977-07-05
Reger, Duane A.
Fluid-pressure and analogous brake systems
Speed-controlled
Having a valve system responsive to a wheel lock signal
188181A, B60T 808
Patent
active
040336360
ABSTRACT:
A vehicle anti-skid braking system is described wherein the brake-applying effort of a driver on a hydraulic master cylinder is assisted or opposed by a reversible servo-booster in accordance with the instant condition of an anti-lock sensor and an associated switch-over valve means. The booster incorporates two shiftable diaphragm actuators only one of which operates to assist braking effort, but both of which operate to oppose braking effort thereby to reduce the possibility of a driver overriding anti-skid operation during "panic" braking. A modified system provides only a single diaphragm actuator for opposing a driver's braking effort under skid conditions.
REFERENCES:
patent: 3401986 (1968-09-01), Walker et al.
patent: 3415578 (1968-12-01), Walker
Rolt Anthony P. R.
Walker Frederick J.
Harry Ferguson Limited
Reger Duane A.
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