Fluid-pressure and analogous brake systems – Speed-controlled – Having a valve system responsive to a wheel lock signal
Patent
1986-10-07
1988-06-28
Reger, Duane A.
Fluid-pressure and analogous brake systems
Speed-controlled
Having a valve system responsive to a wheel lock signal
303111, B60T 862
Patent
active
047534931
ABSTRACT:
An anti-skid control apparatus including front and rear wheels diagonally connected with each other; fluid pressure control valve devices arranged between a tandem master cylinder and the wheels; a control unit; and a valve apparatus for generating a fluid pressure in accordance with the lower one of the pressures of the front wheels. The control unit logically combines the judging results of the skid conditions of the front wheels with judging results of the skid conditions of the rear wheels located at the same side of the road to generate the instructions for controlling the fluid pressure control valve devices. A decrease instruction for decreasing the brake fluid pressure is formed by the logical sum of first skid conditions as the judging results of the front and rear wheels. An increase instruction for increasing the brake fluid pressure, after the decrease instruction disappears, is formed on the basis of the one of the front and rear wheels which are most likely to lock.
REFERENCES:
patent: 3674317 (1972-07-01), Mangold
patent: 3907377 (1975-09-01), Mayer
patent: 4451096 (1984-05-01), Gygax
patent: 4547022 (1985-10-01), Brearley et al.
patent: 4637664 (1987-01-01), Arikawa
Nippon A B S Ltd.
Reger Duane A.
Ryther James P.
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