VEHICLE DRIVE CONTROL SYSTEM, SENSOR UNIT AND TIRE

摘要

A vehicle drive control system performing stability control of a vehicle by detecting an acceleration occurring in each tire easily with high precision and detecting the ground-contact pattern of the tire, its sensor unit and a tire. A sensor unit (100) provided to each tire (2) of a vehicle (1) detects accelerations occurring in X, Y and Z directions, extracts low frequency noise components and high frequency noise components superposed on a Z-axis direction acceleration signal, and transmits the digital values of the detection results as digital information to a monitor (200) by electromagnetic wave. The monitor (200) determines a tire ground-contact pattern by comparing a large amount of prestored tire ground-contact pattern information with the digital information and outputs the information to a stability control unit (700). According to the acceleration values and tire ground-contact pattern information thus obtained, the stability control unit (700) performs drive correction control of a sub-throttle actuator (412) and a brake drive actuator (640).