ANTI-LOCK BRAKE SYSTEM AND SENSOR UNIT FOR THE SAME

摘要

To provide an anti-lock brake system for performing braking control of a vehicle by accurately and easily detecting the acceleration generated in a wheel and its sensor unit. A sensor unit 100 having an acceleration sensor for detecting accelerations generated in X, Y, and Z directions including a rotating direction in accordance with the rotation of a tire 300 is set to a body of rotation of a rotating mechanism portion including each tire 300 and the digital value of a detection result is transmitted by electromagnetic waves as digital information. The digital information is received by a monitor system 200 set to each tire house and an acceleration value obtained by applying arithmetic processing is output to a braking control unit 600. The braking control unit 600 estimates the deflection of each tire 300 in accordance with the obtained acceleration value and previously-stored deflection characteristic information, controls a pressure control valve 630 in accordance with the estimated tire deflection value and the detection result of the rotating speed of each tire 300, and drives a brake driving actuator 640.