Electro-hydraulic brake apply system with emulator latch

Fluid-pressure and analogous brake systems – Speed-controlled – Having a valve system responsive to a wheel lock signal

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Details

3031135, B60T 842

Patent

active

059278250

ABSTRACT:
An electro-hydraulic brake apply system includes an emulator that effects pedal feel simulation by allowing compliance at a selective variable rate. This provides a vehicle driver with the preferred pedal travel and feedback characteristics of a conventional master cylinder/power booster apply system. As a secondary function, the emulator is utilized to latch the modulator. This locks the modulator apply piston in place when electrical power is removed from the drive motor. Further, the emulator operates to hydraulically isolate the master cylinder from the wheel brakes during normal system operation.

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patent: 5000523 (1991-03-01), Mikhaeil-Boules et al.
patent: 5029950 (1991-07-01), Vennemeyer et al.
patent: 5042885 (1991-08-01), Villec
patent: 5147117 (1992-09-01), Quinn
patent: 5163744 (1992-11-01), Tierney et al.
patent: 5246283 (1993-09-01), Shaw et al.
patent: 5308154 (1994-05-01), Matouka

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