ELECTRO-HYDRAULIC BRAKE SYSTEM FOR JUDGING PARTIAL BRAKING OF A VEHICLE BY DETECTING ROTATIONAL DECELERATION OF LEFT AND RIGHT WHEELS AND CONTROLLING BRAKING PRESSURE CORRESPONDING TO A PARTIAL BARKING STATE

摘要

PURPOSE: An electro-hydraulic brake system is provided to control unstable posture of the vehicle by controlling wheel braking pressure of low rotational deceleration and to shorten braking distance necessary for sudden braking by following wheel braking pressure of low rotational deceleration to high rotational deceleration. CONSTITUTION: An electro-hydraulic brake system of a vehicle having plural speed sensors for detecting motion information of the vehicle has a control unit(20) for judging partial braking by using rotational deceleration of front left and right wheels for braking by a driver and outputting a signal for controlling braking pressure of the wheel with low rotational deceleration for partial braking. The control unit is composed of a rotational deceleration computing unit(21,22) for measuring rotational deceleration generated from front left and right wheels; a rotational deceleration error computing unit(23) for calculating a rotational deceleration error of the left and right wheels by inputting the rotational deceleration output from each left and right rotational deceleration computing unit; and a braking pressure control unit(24) for deciding a partial braking state by inputting the error value calculated from the rotational deceleration error computing unit and outputting a braking control signal for releasing partial braking.