Fluid-pressure and analogous brake systems – Speed-controlled – Having a valve system responsive to a wheel lock signal
Patent
1990-07-30
1992-09-29
Butler, Douglas C.
Fluid-pressure and analogous brake systems
Speed-controlled
Having a valve system responsive to a wheel lock signal
188181C, 303 96, 303 98, 303102, 303108, 303116R, 303111, 303113AP, B60T 832
Patent
active
051509504
ABSTRACT:
In a fluid-pressure control apparatus for anti-skid control apparatus, including a control unit for generating brake control signals corresponding to the rotational behaviors of the respective wheels and valve control signals on the basis of the 2 outputs of the wheel speed sensors; and fluid pressure control valves arranged in the respective brake conduit systems and operated by the valve control signals the brake control signals from the front wheels are preferentially used to those from the rear wheels as the valve control signals in the respective brake conduit systems, and when the brake control signal is generated fron any one of the front wheels, the fluid pressure control valve in the one brake conduit system to which the one front wheel belongs, is operated by using the brake control signal as the valve control signal; and when the brake control signal is generated from any one of the rear wheels, the fluid pressure control valve in the one brake conduit system to which the one rear wheel belongs, is operated by using the brake control signal as the valve control signal, if the following condition (a) or (b) is fulfilled: (a) the condition that the vehicle deceleration is larger than a predetermined reference deceleration and the straight-running of the vehicle is detected; (b) the condition that the vehicle deceleration is larger than a predetermined reference deceleration and slip of the other rear wheel is larger than a predetermined first reference slip.
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Abe Toshiyuki
Arikawa Tetsuro
Butler Douglas C.
Nippon A B S Ltd.
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