ESTIMATION OF TIRE GRIP MARGIN USING ELECTRIC POWER STEERING SYSTEM
ESTIMATION OF TIRE GRIP MARGIN USING ELECTRIC POWER STEERING SYSTEM
复制标题
使用电动助力转向系统估算轮胎抓地力
DOI：
--
复制
发表时间：
2004
期刊：
影响因子：
--
通讯作者：
K. Koibuchi
中科院分区：
文献类型：
--
作者：
E. Ono;K. Asano;K. Koibuchi
提出了一种基于电动助力转向系统和车辆稳定性控制系统传感器信号的轮胎抓地力裕度估计方法。轮胎抓地力裕度被定义为轮胎力裕度与对应于轮胎与道路之间的摩擦特性的最大轮胎力的比率。本文将自回正力矩描述为轮胎抓地力裕度的横向力和纵向力的函数，提出了轮胎抓地力裕度的估算方法。该估计方法基于刷子模型，因此通过将该方法应用于魔术公式轮胎模型来验证估计的鲁棒性。此外，在线识别算法，以适应轮胎特性的变化，如充气压力和轮胎类型，应用于轮胎抓地力裕度的估计方法，以实际应用。在轮胎与路面间摩擦系数恒定的试验场上，对该方法进行了试验验证。有关覆盖摘要，请参见ITRD E122482。
This paper develops an estimation method of tire grip margin from sensor signals of an electric power steering system and vehicle stability control system. Tire grip margin is defined as a ratio of tire force margin to maximum tire force that corresponds to friction characteristics between tire and road. In this paper, SAT (Self Aligning Torque) can be described as a function of the lateral and longitudinal forces of the tire grip margin, and an estimation method of the tire grip margin is proposed. The estimation method is based on a brush model, so that the robustness of the estimation is verified by applying the method to a magic formula tire model. Furthermore, on line identification algorithm, which adapts to change of tire characteristics such as inflation pressure and types of tires, is applied to estimation method of tire grip margin for practical use. The estimation method is evaluated by experiment on a proving ground that has a constant friction coefficient between tire and road. For the covering abstract see ITRD E122482.