Fluid-pressure and analogous brake systems – Speed-controlled – With failure responsive means
Patent
1997-11-10
1999-12-28
Oberleitner, Robert J.
Fluid-pressure and analogous brake systems
Speed-controlled
With failure responsive means
30312212, 3031162, B60T 888, B60T 840
Patent
active
06007163&
ABSTRACT:
A pressure difference is formed between a master cylinder pressure and a wheel cylinder pressure when a master cut-off valve closes a hydraulic path connecting a master cylinder and a wheel cylinder and a hydraulic pump supplies pressurized brake fluid to the wheel cylinder. After the pressure difference has been formed, the master cut-off valve opens the hydraulic path so that the pressure difference is cancelled. As a result, pulsations in brake fluid pressure occurs in the hydraulic path. A failure of the master cut-off valve or the hydraulic pump is detected based on the pulsations in brake fluid pressure.
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Denso Corporation
Oberleitner Robert J.
Woller Jeffrey
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