Patent ID: 7552978
Filing Date: 2009-06-30
Classification: B60T

Abstract:
1. A control apparatus for a brake system comprising an actuator control unit detecting a displacement of a brake pedal which displaces in accordance with an operating force of a driver for controlling an actuator, and the actuator controlled by the actuator control unit for producing a brake force applied to a brake force generating mechanism, characterized in that the actuator control unit is composed of an electric actuator controller and a hydraulic actuator controller, the actuator is composed of a first actuator and a second actuator composed of a hydraulic pump and a hydraulic valve means, controlled by the hydraulic actuator controller, the first actuator is arranged in a hydraulic pipe line connected to the brake force generating mechanism, and composed of a hydraulic pressure supply means which is operated by an electric drive source controlled by the electric actuator controller, and the hydraulic valve means, the hydraulic pressure supply means is connected to the hydraulic pipe line in parallel with the hydraulic pump for feeding a hydraulic pressure to the brake force generating mechanism by way of the hydraulic valve means, and the hydraulic pump is connected to the hydraulic pipe in parallel with the hydraulic supply means so as to feed a hydraulic pressure into the brake force generating mechanism, such that the hydraulic pressure is supplied to the brake force generating mechanism through one of the hydraulic pressure supply means and the hydraulic pump depending on a degree of displacement of the brake pedal, wherein the hydraulic valve means opens to supply the hydraulic pressure to the brake force generating mechanism while the hydraulic pump stops when the hydraulic pressure is supplied to the brake force generating mechanism through the hydraulic pressure supply means, and the hydraulic pump is driven to supply the hydraulic pressure to the brake force generating mechanism while the hydraulic valve means closes when the hydraulic pressure is supplied to the brake force generating mechanism through the hydraulic pressure supply means.