Hydraulic pressure control system for motor vehicles

Details Hydraulic pressure control system for motor vehicles Hydraulic pressure control system for motor vehicles

1987-01-30

1988-06-07

Kashnikow, Andres

Fluid-pressure and analogous brake systems

Pipeless valves

303100, 303105, 303109, 364426, B60T 878, B60T 858, B60T 870

Patent

active

047492392

ABSTRACT:
Disclosed is a hydraulic pressure control system for a motor vehicle which may be employed for anti-skid control. The control system comprises a wheel braking device for providing the brake for a wheel of the vehicle under hydraulic pressure, a braking pressure switching device for performing the switching operation at least between the increasing and decreasing of the hydraulic pressure applied to the wheel braking device, and a hydraulic pressure control unit for supplying a control signal to the braking pressure switching device at a predetermined interval so that the hydraulic pressure value to be applied to the wheel braking device becomes equal to a target hydraulic pressure value. The control unit compares the target hydraulic pressure value with first and second reference values which are obtained on the basis of an estimated hydraulic pressure value estimated to apply the wheel braking device and producing the control signal in accordance with the results of the comparison.

REFERENCES:
patent: 3637264 (1972-01-01), Leiber et al.
patent: 3953083 (1976-04-01), Latvald et al.
patent: 4225195 (1980-09-01), Weise et al.
patent: 4395761 (1983-07-01), Sato et al.
patent: 4660382 (1987-04-01), Ueno et al.
patent: 4660896 (1987-04-01), Matsuda

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