Control system for vehicle brake valve
AssigneeFail Safe Industries, Inc.
InventorsGregory Csurgay, Willes W. Reeder
Life of this patent
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Abstract
This invention relates to a control system for use on an automotive vehicle in conjunction with a valve in the vehicle's hydraulic brake system to control certain aspects of the braking operation. Preferably, the present control system insures that the brakes will be locked to prevent the vehicle from creeping forward after being braked to a stop, such as at a stop light. Also, the present control system preferably insures that the brakes will be locked after the engine has been turned off, so as to prevent the car from being stolen.
Claims29
In an automotive vehicle brake system having hydraulic brake means, and valve means operatively connected to control the hydraulic pressure in said brake means, said valve means having an open first position in which it is operable either to relieve said hydraulic pressure or to apply a pressure increase to said brake means, said valve means having at least one additional position in which it acts as a one-way check valve operable to apply a pressure increase to said brake means but not to relieve pressure in said brake means, the improvement which comprises:
- electrically energizable means for controlling the position of said valve means;
- and control circuit means operatively connected to said electrically energizable means to effect the positioning of said valve means in said open position when the vehicle is moving and in said additional position after the vehicle stops.
Dependencies are inferred from the claim text.