| 摘要 |
PURPOSE: An auxiliary hydraulic pressure supplying device of a brake system for a vehicle is provided to prevent the lack of brake power caused by the intake vacuum of an engine by hydraulic pressure for braking the vehicle in traveling at a high speed with the power of a radiator fan flowing in outer air to cool the coolant of the engine. CONSTITUTION: An auxiliary hydraulic pressure supplying device of a brake system for a vehicle is composed of a controller(3) generating a control signal by receiving the signal of a speed sensor(2) measuring the speed of the vehicle and a contact sensor(1) detecting the state of a brake pedal(BP) operating a booster(B) connected by a surge tank(S) and a vacuum line(P) installed to an intake manifold(I) of an engine(E), a clutch(4) connecting and separating between an oil pump(5) and a radiator fan(R) by the control signal of the controller, and a flow control device(10) supplying the hydraulic pressure of an oil tank(6) to a brake mechanism(C) installed to a vehicle wheel through the oil pump with separating from a master cylinder(M) according to the working of the clutch.
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