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    • 3. 发明公开
    • 마찰 계수 추정 방법 및 장치
    • 用于估计摩擦系数的方法和装置
    • KR1020090085691A
    • 2009-08-07
    • KR1020097012995
    • 2007-10-22
    • 콘티넨탈 오토모티브 게엠베하
    • 비안,닌그가물에슈,셀린느마이어,안드레아스피들러,옌스
    • B60W40/068B60T8/172
    • B60T8/172B60T2210/12B60T2230/02
    • A friction coefficient between at least one tire of a motor vehicle and a roadway is estimated recursively. A kingpin inclination angle is detected or measured. A model determines a lateral friction value in that a functional correlation between the lateral friction value and the kingpin inclination angle is defined such that a non-linear course of the lateral friction value relative to the kingpin inclination angle is dependant on an initial increase of the lateral friction value relative to the kingpin inclination angle and on a recursively determined estimated value of the friction coefficient. The initial increase is defined substantially independently from the recursively determined estimated value of the friction coefficient. In addition, a measurement variable of the driving dynamics of the vehicle is captured. Depending on the lateral friction value, the driving dynamics model variable that corresponds to the driving dynamics measurement value is determined. Furthermore, a variance between the driving dynamics measurement variable and the driving dynamics model value is determined. The recursion when acquiring the estimated value of the friction coefficient includes that the estimated value is adjusted as a function of the determined variance. ® KIPO & WIPO 2009
    • 递归地估计机动车辆的至少一个轮胎和道路之间的摩擦系数。 检测或测量主销倾斜角度。 一个模型确定横向摩擦值,因为横向摩擦值和主销倾角之间的函数关系被定义为使横向摩擦力值相对于主销倾斜角度的非线性过程取决于初始增加的 相对于主销倾斜角的横向摩擦值,以及递归确定的摩擦系数的估计值。 初始增加基本上独立于递归确定的摩擦系数的估计值而定义。 此外,捕获车辆的行驶动力学的测量变量。 根据横向摩擦值,确定对应于行驶动力学测量值的驾驶动力学模型变量。 此外,确定驾驶动力学测量变量与驾驶动力学模型值之间的差异。 获取摩擦系数的估计值时的递归包括根据确定的方差来调整估计值。 ®KIPO&WIPO 2009