Traction Control System of Electric Vehicle with 4 In-Wheel Motors using Lyapunov Stability Analysis Algorithm
- 6 April 2021
- conference paper
- conference paper
- Published by SAE International in SAE International Journal of Advances and Current Practices in Mobility
Abstract
A TCS strategy of electric vehicle with 4 in-wheel motors is proposed in this paper. The control method consists of three parts: target slip rate calculation, target torque calculation and coordination control. By using Lyapunov stability analysis algorithm, the target slip rate boundary which makes the system stable is obtained. The target torque of each wheel is calculated by PI controller. According to the engineering experience, the TCS coordinated control strategy under split friction coefficient (split-μ) road, and friction coefficient jump(μ jump) road is proposed. The test results show that this strategy can improve the acceleration comfort and yaw stability of vehicles on uniform low friction coefficient (low μ) , split-μ and μ jump road.This publication has 3 references indexed in Scilit:
- Research and test on traction control system of distributed driving electric vehiclesPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2017
- Simultaneous Vehicle Real-Time Longitudinal and Lateral Velocity EstimationIEEE Transactions on Vehicular Technology, 2016
- Innovation by in-wheel-motor drive unitVehicle System Dynamics, 2012