Fluid-pressure and analogous brake systems – Speed-controlled – Having a valve system responsive to a wheel lock signal
Patent
1990-11-15
1993-01-05
Graham, Matthew C.
Fluid-pressure and analogous brake systems
Speed-controlled
Having a valve system responsive to a wheel lock signal
303110, B60T 858
Patent
active
051764300
ABSTRACT:
The invention is directed to an anti-skid control system for controlling braking forces applied to road wheels with hydraulic braking pressure supplied from a master cylinder to wheel brake cylinders and controlled in response to braking condition of the road wheels. A wheel speed of at least one of the road wheels is detected to provide an output signal corresponding to the wheel speed. A hydraulic braking pressure supplied to each of the wheel brake cylinders is increased, held or decreased in response to a variation of the wheel speed. The hydraulic braking pressure supplied to each of the wheel brake cylinders is increased in response to a proportion between an increasing time for increasing the pressure and a holding time for holding the pressure. The increasing time provided for one of at least two wheel brake cylinders is prohibited from being coincident with the increasing time provided for the other. Thus, the timing for increasing the hydraulic braking pressure in one of the wheel brake cylinders will not coincide with that in the other.
REFERENCES:
patent: 4349876 (1982-09-01), Lindenmann
patent: 4585280 (1986-04-01), Leiber
patent: 4805103 (1989-02-01), Matsuda
patent: 4912641 (1990-03-01), Kuwana et al.
Ichikawa Hiroyuki
Kuwana Kazutaka
Tozu Kenji
Yoshida Tsuyoshi
Aisin Seiki Kabushiki Kaisha
Graham Matthew C.
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