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Method for estimating road surface friction coefficient of tire and device for estimating road surface friction coefficient of tire in high speed normal driving state
Method for estimating road surface friction coefficient of tire and device for estimating road surface friction coefficient of tire in high speed normal driving state
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机译:估计轮胎表面摩擦系数的方法及其在高速正常驾驶状态下估算轮胎的道路表面摩擦系数
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摘要
The present invention relates to a method and device for estimating the road surface friction coefficient of a tire, which estimate the road surface friction coefficient of a tire mounted on a wheel of a vehicle in a state in which the vehicle is normally running at high speed. The method includes: acquiring the state information of a vehicle including at least one of engine state information, transmission state information, and chassis state information from sensors mounted on the vehicle and specifications set for the vehicle; estimating a longitudinal slip ratio, normal force, and longitudinal force for a tire mounted on each wheel of the vehicle by using the acquired state information of the vehicle; and estimating a road surface friction coefficient for the tire by using the estimated longitudinal slip ratio, normal force, and longitudinal force.
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