Hydraulic anti-skid vehicle braking system

Details Hydraulic anti-skid vehicle braking system Hydraulic anti-skid vehicle braking system

1989-06-15

1990-09-18

Olszewski, Robert P.

Fluid-pressure and analogous brake systems

Speed-controlled

Having a valve system responsive to a wheel lock signal

303113, 303116, B60T 858, B60T 846

Patent

active

049573314

ABSTRACT:
In an hydraulic anti-skid braking system (FIG. 1), a valve controlling the flow of braking fluid to a brake actuator is actuated by a pulse-driven stepper motor in response to signals emanating from a skid sensor. In a practical arrangement (FIG. 3), a motor under the control of a microprocessor actuates a pressure dump valve via an eccentric mechanism upon the appearance of a skid signal at the sensor, in order to de-pressurize the actuator, and also drives a pump which assists in re-pressurizing the system when the skid signal ceases.

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