Slip-based tire road friction estimation
Slip-based tire road friction estimation
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DOI：
10.1016/s0005-1098(97)00003-4
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发表时间：
1997-06-01
期刊：
影响因子：
6.4
通讯作者：
Gustafsson, F
中科院分区：
文献类型：
--
作者：
Gustafsson, F
提出了一种仅使用车轮滑移（即车轮速度的相对差）来估计正常行驶期间轮胎-路面摩擦力的方法。驾驶员可以获知最大摩擦力，并对突然变化发出警报。仅使用现代汽车中标准传感器的信号来估计与摩擦相关的参数。提出了一种针对参数线性模型的自适应估计器，该模型设计用于在激励不良的情况下工作。变量误差、同时缓慢和快速的参数漂移以及突然的变化。这些参数与最大摩擦力之间的物理关系是通过使用沃尔沃 850 GLT 作为测试车进行的广泛现场试验确定的。 (C) 1997 爱思唯尔科学有限公司。
An approach to estimate the tire-road friction during normal drive using only the wheel slip, that is, the relative difference in wheel velocities, is presented. The driver can be informed about the maximum friction force and be alarmed for sudden changes. Friction-related parameters are estimated using only signals from standard sensors in a modern car. An adaptive estimator is presented for a model linear in parameters, which is designed to work for periods of poor excitation. errors in variables, simultaneous slow and fast parameter drifts and abrupt changes. The physical relation between these parameters and the maximal friction force is determined from extensive field trials using a Volvo 850 GLT as a test car. (C) 1997 Elsevier Science Ltd.