Advanced Longitudinal and Lateral Stability Control System for a Four-Wheel-Independent-Drive Electric Vehicle Using a New Power Converter Topology

This work develops an advanced control system to improve the handling, comfort, and longitudinal lateral stability of a four-wheel-independent-drive electric vehicle, based on combination control. Firstly, avoid wheels from slipping or locking when accelerating braking combining traction is proposed. The coordinated ASR/ABS can operate as acceleration slip regulation (ASR) by preventing during antilock (ABS) adjusting motor torques dynamically. Secondly, stabilize movement vehicle in severe turns, dynamic direct yaw active front steering designed. uses fast precise torque motors transmitted directly wheels. originality present use new power converter topology simultaneously supply four in-wheel motors, simplifying architecture design laws. configuration studied allows turn at identical different speeds imposing independent each drive wheel. Finally, order diminish ripple, provide better speed tracking performance, achieve high-performance for with interior permanent magnet synchronous fuzzy SVM-DTC strategy proposed be utilized. Numerical simulations using Matlab/Simulink software were carried out under diverse driving situations highlighting robustness techniques developed means converter.