发明申请
US20100131145A1 VEHICLE LATERAL VELOCITY AND SURFACE FRICTION ESTIMATION USING FORCE TABLES 有权
使用力表的车辆横向速度和表面摩擦估计

VEHICLE LATERAL VELOCITY AND SURFACE FRICTION ESTIMATION USING FORCE TABLES
摘要:
A system and method for estimating vehicle lateral velocity and surface coefficient of friction using front and rear axle lateral force versus side-slip angle tables and sensor measurements. The sensor measurements include lateral acceleration, yaw-rate, longitudinal speed and steering angle of the vehicle. The method includes calculating front and rear axle lateral forces and front and rear side-slip angles on the axles of the vehicle. The method also includes identifying two equations from the calculated lateral forces and the vehicle measurements. The method provides tables that identify a relationship between the calculated front and rear axle lateral forces and the front and rear side-slip angles, and determines the vehicle lateral velocity and surface coefficient of friction from the tables.
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