Fluid-pressure and analogous brake systems – Speed-controlled – Wheel speed sensor and braking pressure sensor
Patent
1995-11-03
1996-08-13
Butler, Douglas C.
Fluid-pressure and analogous brake systems
Speed-controlled
Wheel speed sensor and braking pressure sensor
303167, 303174, 3031134, 303DIG4, 303DIG1, B60T 860
Patent
active
055459293
ABSTRACT:
An antiskid control device which calculates an estimated fluid pressure of each of wheel cylinders under antiskid control in each control cycle so as to adjust a fluid pressure of each of the wheel cylinders on the basis of the estimated fluid pressure and behaviors of the wheels. The device includes a differential pressure detecting member which detects a difference between a fluid pressure of a master cylinder and the fluid pressure of each of the wheel cylinders so as to produce an output signal indicative of the difference between the fluid pressure of the master cylinder and the fluid pressure of each of the wheel cylinders. When the difference between the fluid pressure of the master cylinder and the fluid pressure of each of the wheel cylinders is found to be in the vicinity of zero, the estimated fluid pressure of each of the wheel cylinders is set to a predetermined value by stopping addition in calculation of the estimated fluid pressure.
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European Search Report And Annex. (no date).
Fijioka Hideaki
Yasuzumi Kazumi
Butler Douglas C.
Sumitomo Electric Industries Ltd.
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