Fluid-pressure and analogous brake systems – Speed-controlled – Having a valve system responsive to a wheel lock signal
Patent
1986-11-14
1988-05-24
Butler, Douglas C.
Fluid-pressure and analogous brake systems
Speed-controlled
Having a valve system responsive to a wheel lock signal
180197, 188347, 188348, 303114, 303119, B60K 2816, B60T 832
Patent
active
047461748
ABSTRACT:
For traction slip control, the wheel brakes (13, 14) of the driven wheels (VR, VL) are connected to the auxiliary-pressure source (5, 6) of the brake system by electromagnetically actuatable multidirectional control valves (E11, E12). In an initial phase at the beginning of brake actuation, the wheel brakes (13, 14) are connected for a short time to the pressure-compensating reservoir (7) of the brake system by way of biassed non-return valves (29, 30) and an outlet valve (A28) so that, prior to the actual commencement of traction slip control, lost travels are covered, the wheel brakes (13, 14) are applied and defined and even pressure level is thereby produced in the wheel brakes.
REFERENCES:
patent: 4492413 (1985-01-01), Belart et al.
patent: 4565411 (1986-01-01), Seiber
patent: 4578951 (1986-04-01), Belart et al.
patent: 4626043 (1986-12-01), Belart et al.
patent: 4641895 (1987-02-01), Belart et al.
patent: 4643486 (1987-02-01), Belart et al.
patent: 4676558 (1987-06-01), Klein
Alfred Teves GmbH
Butler Douglas C.
Raden James B.
Seitter Robert P.
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