Gm Global Technolgoy Operations, Inc.

Thomas B Taylor

Donald L Parker

Timothy Allen Haerr

Donald M Flory

George N Villec

Scott A Baughman

Schuyler Scott Shaw

Donald E Schenk

Edward J DeHoff

A vehicle braking system having a wheel lock control arrangement with isolation valves, solenoid, and brake control valves for the system. In one arrangement, each wheel brake and isolation valve has its own solenoid and control valve. Additionally, the isolation valve is configured in a manner to prevent premature drop out from isolation and to prevent any flow from a master cylinder brake apply pressure circuit to a pump pressure circuit.

Vehicle brake control system

A vehicle braking system having a wheel lock control arrangement with isolation valves for each wheel brake and either three or four solenoid and brake control valves for the system. In one arrangement, each wheel brake and isolation valve has its own solenoid and control valve. In other arrangements two front wheel brakes have separate solenoid controlled operating valves and the two rear wheel brakes have a single solenoid controlling operating valve controlling both isolation valves. Traction control is incorporated into the system so that a wheel brake required braking for traction control purposes may be applied by pump pressure without the vehicle brakes themselves having to be applied through service braking.

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Clarkston, MI, United States of America

Thomas B Taylor