Fluid-pressure and analogous brake systems – Speed-controlled – Having a valve system responsive to a wheel lock signal
Patent
1989-12-12
1992-06-02
Graham, Matthew C.
Fluid-pressure and analogous brake systems
Speed-controlled
Having a valve system responsive to a wheel lock signal
303 96, 303106, B60T 834
Patent
active
051181681
ABSTRACT:
An anti-skid control apparatus for a vehicle includes fluid pressure control valve devices arranged between fluid pressure generating chambers of a tandem master cylinder and the wheel cylinders of the front wheels, respectively, and a control unit receiving outputs of wheel speed sensors for measuring or judging the skid conditions of the front and rear wheels and for generating instructions for controlling the fluid pressure control valve devices. The control unit discriminates the frictionally lower side of the road on which the wheels are running, on the basis of the measuring or judging results of the skid conditions of the rear and/or front wheels, combines logically the measuring or judging result of the skid condition of the one rear wheel running on the low side of the road or the measuring or judging results of the skid conditions of the rear wheels, with that of the one front wheel running on the low side, for generating the instruction for controlling the first or second fluid pressure control valve device for the corresponding front wheel, and generates the instruction for controlling the second or first fluid pressure control valve device for the other front wheel, on the basis of the measuring or judging result of the skid condition of the measuring or judging result of the skid condition of the other front wheel running on the high side independently of those of the rear wheels. The low side can be changed over in accordance with the measuring or judging result. Or the control unit will reset the low side.
REFERENCES:
patent: 3604761 (1971-09-01), Okamato
patent: 3674317 (1972-07-01), Mangold
patent: 3754797 (1973-08-01), Rodi et al.
patent: 3797892 (1974-03-01), Leiber
patent: 3877755 (1975-04-01), Carp et al.
patent: 3980346 (1976-09-01), Leiber
patent: 4005910 (1977-02-01), Leiber et al.
patent: 4033637 (1977-07-01), Leiber
patent: 4059312 (1977-11-01), Jonner
patent: 4229049 (1980-10-01), Ando
patent: 4418966 (1983-12-01), Hattwig
patent: 4421362 (1983-12-01), Shirai et al.
patent: 4435768 (1984-03-01), Arikawa
patent: 4439832 (1984-03-01), Sato et al.
patent: 4451096 (1984-05-01), Gygax
patent: 4637664 (1987-01-01), Arikawa
patent: 4637664 (1987-01-01), Arikawa
patent: 4673226 (1987-06-01), Every et al.
patent: 4740040 (1988-04-01), Arikawa
patent: 4744610 (1988-05-01), Arikawa
patent: 4753493 (1988-06-01), Arikawa
patent: 4776644 (1988-10-01), Arikawa
patent: 4783126 (1988-11-01), Arikawa
patent: 4793662 (1988-12-01), Arikawa
Graham Matthew C.
Nippon A B S Ltd.
LandOfFree
Anti-skid control apparatus for a vehicle braking system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Anti-skid control apparatus for a vehicle braking system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Anti-skid control apparatus for a vehicle braking system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2224821