Patent ID: 8544962
Filing Date: 2013-10-01
Classification: B60T

Abstract:
1. A vehicle braking system for applying pressurized hydraulic brake fluid to a plurality of wheel brakes upon actuation of a brake pedal by a vehicle operator, the braking system comprising: a source of pressurized brake fluid; and a boost valve for controlling a pressure of brake fluid from the source of pressurized fluid to the wheel brakes as a function of the operation of the brake pedal; wherein the braking system includes at least one isolation valve between the source of pressurized brake fluid and the boost valve for selectively restricting the flow of fluid from the source to the boost valve in an unactuated state, and wherein the isolation valve is a solenoid actuated digital valve movable between an open position permitting the flow of fluid between the source of pressurized fluid and the boost valve, and a closed position preventing the flow of fluid between the source of pressurized fluid and the boost valve.