Fluid-pressure and analogous brake systems – Speed-controlled – Having a valve system responsive to a wheel lock signal
Patent
1975-11-05
1977-05-24
Blix, Trygve M.
Fluid-pressure and analogous brake systems
Speed-controlled
Having a valve system responsive to a wheel lock signal
303 40, 303119, B60T 802
Patent
active
040251276
ABSTRACT:
A wheel lock-up prevention system for motor vehicles includes electromagnetic valves which decompress the main control chamber of the system when a wheel lock-up occurs and hence terminate the braking effort at the locked wheel. During re-compression, which takes place by cyclic actuation of one of the electromagnetic valves, excessively high pressure pulses are prevented by connecting the main control chamber with a surge chamber during part of the cycle so as to diminish the pressure in the main control chamber and to make the magnitude of the cyclic pressure increases inversely proportional to the total pressure in the control chamber.
REFERENCES:
patent: 3731980 (1973-05-01), Fink et al.
patent: 3836209 (1974-09-01), Neisch
patent: 3902764 (1975-09-01), Sebo
patent: 3937527 (1976-02-01), Eckhart
Blix Trygve M.
Butler Doulgas C.
Greigg Edwin E.
Robert Bosch G.m.b.H.
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