Hydraulic servo brake system with slip control and with throttle

Details Hydraulic servo brake system with slip control and with throttle Hydraulic servo brake system with slip control and with throttle

1987-01-15

1988-09-20

Butler, Douglas C.

Fluid-pressure and analogous brake systems

Speed-controlled

Having a valve system responsive to a wheel lock signal

13759617, 251117, 303119, B60T 832, F15B 912

Patent

active

047720751

ABSTRACT:
A hydraulic servo brake system with slip control. Brake circuits (18, 22, 25) with supply valves (28, 32, 35) and discharge valves (29, 33, 36) for the control of the wheel cylinder pressures during slip control are provided. Throttle points (38) are arranged within the supply valves. Each supply valve is bridged by an auxiliary valve (31, 34, 37) which is switchable into the closed position when the slip control action sets in. In this manner, the pressure gradient for the brake pressure build-up in the wheel cylinders is high before the slip control and low during the slip control.

REFERENCES:
patent: 3549212 (1970-12-01), Leiber
patent: 3550966 (1970-12-01), Leiber
patent: 4090739 (1978-05-01), Iio
patent: 4099793 (1978-07-01), Iio
patent: 4634190 (1987-01-01), Wupper
patent: 4640558 (1987-02-01), Nomura et al.
patent: 4643487 (1987-02-01), Newbrand
patent: 4668024 (1987-05-01), Nakanishi et al.
patent: 4685749 (1987-08-01), Otsuki et al.

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