Fluid-pressure and analogous brake systems – Speed-controlled – Having a valve system responsive to a wheel lock signal
Patent
1990-09-28
1991-11-12
Butler, Douglas C.
Fluid-pressure and analogous brake systems
Speed-controlled
Having a valve system responsive to a wheel lock signal
303 97, 303109, 36442602, B60T 870
Patent
active
050642537
ABSTRACT:
An anti-skid controlling apparatus which establishes the time allocation for the pressure decreasing time and decreased pressure holding time, as well as the time allocation for the pressure increasing time and increased pressure holding time, in accordance with the correlation between wheel acceleration and wheel lock level. The brake fluid pressure in the wheel cylinder is increased, held constant or decreased as needed. This makes it possible to establish optimal time allocation settings allowing for the pressure increasing and decreasing characteristics of the pressure controlling device. In turn, brake fluid pressure control is kept optimally provided independent of various factors that would affect the brake fluid pressure in the wheel cylinder. Thus the apparatus is suitable for use on board diverse kinds of vehicle with diverse characteristics.
REFERENCES:
patent: 4637663 (1987-01-01), Matsuda
patent: 4662686 (1987-05-01), Matsuda
Ichikawa Hiroyuki
Kuwana Kazutaka
Tozu Kenji
Yoshida Tsuyoshi
Aisin Seiki K.K.
Butler Douglas C.
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