Fluid-pressure and analogous brake systems – Motorman's valves – Multiple motors
Patent
1986-07-10
1988-03-15
Butler, Douglas C.
Fluid-pressure and analogous brake systems
Motorman's valves
Multiple motors
188358, 303114, 303119, 303116, B60T 1312, B60T 1506, B60T 844
Patent
active
047308770
ABSTRACT:
A brake system with hydraulic force boosting comprises a master cylinder (1) and an auxiliary pressure supply system including a hydraulic pump (10), the driving motor (M) of which is actuated when the brake is applied. The pressure in the working chambers (18,19) of the master cylinder (1) results in the re-switching of valve arrangements (2,3) with the result that the controlled auxiliary pressure is applied to the wheel brakes (4-7) in lieu of the master cylinder pressure (1). For pedal travel simulation, a hydraulic cylinder (37) is connected to a work chamber (19), with the piston (38) of the hydraulic cylinder being displaceable against a restoring spring (39) and against the controlled auxiliary pressure. A pressure-controlled multidirectional valve (40) provides for a connection of the auxiliary pressure source.
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Ocvirk Norbert
Schonlau Juergen
Seibert Wolfram
Alfred Teves GmbH
Butler Douglas C.
Raden James B.
Seitter Robert P.
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