Patent ID: 6095622
Filing Date: 2000-08-01
Classification: B60T,Y10S

Abstract:
A hydraulic brake control system for use in a vehicle, comprising:a wheel brake for applying a hydraulic braking force to a wheel in response to a hydraulic pressure supplied to the wheel brake;a reservoir for storing brake fluid under the atmospheric pressure;a main hydraulic pressure source fluidly connected to the reservoir for generating a first high hydraulic pressure in response to a force applied to an operating member of the vehicle;an auxiliary hydraulic pressure source fluidly connected to the reservoir for generating a second high hydraulic pressure;a control valve fluidly connected to the main hydraulic pressure source, the auxiliary hydraulic pressure source, the wheel brake, and the reservoir, for establishing a supply and drain of the brake fluid under pressure to the wheel brake from any one of the main hydraulic pressure source and the auxiliary hydraulic pressure source; anda flow control device provided in a passage between the auxiliary hydraulic pressure source and the control valve for controlling at least in two steps a flow rate of the brake fluid supplied to the wheel brake from the auxiliary hydraulic pressure source via the control valve.