轮胎／路面附着系数估算方法

为提高汽车主动安全系统自适应控制性能，需要对轮胎／路面附着系数进行精确的识别或估算。鉴于附着系数估计的复杂性，文章综述了目前路面附着系数估算中的汽车动力学建模和轮胎／路面摩擦模型建模，重点讨论了轮胎／路面附着系数识别算法中传感器的直接检测估计法，以及基于车辆动力学、回正力矩和状态观测器等动力学模型的估计算法，并对各估算方法存在的问题与发展趋势等进行了分析。对开发汽车主动安全电控系统和提高汽车产业核心竞争力具有重要意义。

Study on the Tire/Road Friction Coefficient Estimation

In order to improve adaptive control performance of automotive active safety systems, the tire/road friction coefficient shouht be real-time precisely estimated. Because of the friction coefficient estimation complexity the current vehicle dynamics modeling, tire/road friction modeling related to road friction coefficient estimation was described in this paper. And the following question is focused on the tire/road friction coefficient direct detection estimation by the sensor recognition algorithm, and dynamic model estimation algorithm based on vehicle dynamics, aligning torque and the state observer. Finally the estimation methods shortcoming and trends were analyzed. Obviously the estimation has important implications for the development of vehicle active safety systems and the core competitiveness improvement for the automotive industry.