Hydraulic braking systems

Details Hydraulic braking systems Hydraulic braking systems

1999-10-05

2000-12-26

Schwartz, Christopher P.

Fluid-pressure and analogous brake systems

Speed-controlled

With failure responsive means

303155, B60T 888

Patent

active

061647330

ABSTRACT:
A compliance unit (8) for use in an hydraulic braking system is disclosed which is adapted to absorb hydraulic fluid from a master cylinder (1) during normal braking and, in the event that a fault in the braking system is detected the unit is adapted to return fluid to the master cylinder (1). The compliance unit (8) therefore effectively decreases its compliance in the event of a fault. The unit (8) may comprise a pair of pistons (14, 15) working in a stepped bore against a first and second biasing force, with a third variable biasing force provided to cancel out the second biasing force during normal operation to provide an increased compliance.

REFERENCES:
patent: 4425005 (1984-01-01), Warwick
patent: 4865398 (1989-09-01), Takeuchi et al.
patent: 5246283 (1993-09-01), Shaw et al.
patent: 5603217 (1997-02-01), Majersik et al.
patent: 5609401 (1997-03-01), Johnston et al.

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