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首页> 外文期刊>Proceedings of the Institution of Mechanical Engineers, Part D. Journal of Automobile Engineering >A study on the road friction coefficient estimation and motor torque control for an in-wheel electric vehicle
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A study on the road friction coefficient estimation and motor torque control for an in-wheel electric vehicle

机译：轮毂电动汽车的道路摩擦系数估算与电机转矩控制研究

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摘要

In this study, a motor torque control algorithm for improving the stability of an in-wheel electric vehicle is proposed. The longitudinal and normal forces acting on the tyre were estimated with the wheel speed, the vehicle acceleration and the motor torque, and a road friction coefficient estimation method based on these factors is suggested. Furthermore, a method for determining the control normal force of each wheel and for limiting the in-wheel motor torque is proposed by introducing the concept of virtual movement of the centre of gravity by the slip ratio. The performance of the proposed in-wheel motor torque control algorithm was validated through MATLAB/Simulink and CarSim co-simulation and real-vehicle tests. The simulations and experimental results show that the in-wheel motor torque control algorithm braked the vehicle with no spin on a slippery road.
机译：在这项研究中，提出了一种用于提高轮毂电动汽车稳定性的电动机转矩控制算法。利用车轮速度，车辆加速度和电动机扭矩估算作用在轮胎上的纵向和法向力，并提出一种基于这些因素的道路摩擦系数估算方法。此外，通过引入通过滑移率虚拟重心的概念，提出了一种确定每个车轮的控制法向力并限制车轮内电动机转矩的方法。通过MATLAB / Simulink和CarSim协同仿真以及真实车辆测试，验证了所提出的轮毂电机转矩控制算法的性能。仿真和实验结果表明，轮毂电机转矩控制算法在湿滑路面上无转弯时制动了车辆。

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