Research On Hardware Design of In-Wheel Motor Drive Controller for New Energy Vehicles Based on STM32 Microcontroller

Against the backdrop of the promotion of the national "dual carbon" policy and the upgrading of environmental protection requirements, new energy vehicles (NEVs) have become the preferred means of transportation for an increasing number of consumers. This paper designs a hardware circuit for the in-wheel motor (IWM) drive controller based on the STM32F103 series microcontroller, with a focus on optimizing the power drive and conversion circuit centered around insulated gate bipolar transistor (IGBT), the optocoupler isolation circuit, the voltage and current sampling circuit, etc. The feasibility of the control strategy adapted to the hardware is verified through MATLAB/Simulink platform. The results show that this control strategy can achieve stable control of the IWM. This research provides a feasible technical reference for the hardware design and optimization of the IWM drive system of NEVs.