发明申请
- 专利标题: VEHICLE LATERAL VELOCITY AND SURFACE FRICTION ESTIMATION USING FORCE TABLES
- 专利标题(中): 使用力表的车辆横向速度和表面摩擦估计
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申请号: US12276996申请日: 2008-11-24
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公开(公告)号: US20100131145A1公开(公告)日: 2010-05-27
- 发明人: Jihan Ryu , Flavio Nardi , Nikolai K. Moshchuk , Kevin A. O'Dea
- 申请人: Jihan Ryu , Flavio Nardi , Nikolai K. Moshchuk , Kevin A. O'Dea
- 申请人地址: US MI Detroit
- 专利权人: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
- 当前专利权人: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
- 当前专利权人地址: US MI Detroit
- 主分类号: G06F17/00
- IPC分类号: G06F17/00
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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