Performance Optimization Design of Motor Drive System for New Energy Vehicles

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AUTO ELECTRIC PARTS ›› 2026, Vol. 1 ›› Issue (3) : 30-32.

New Energy

Performance Optimization Design of Motor Drive System for New Energy Vehicles

Guo Xiaodan

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Abstract

The driving performance of the motor in new energy vehicles is directly related to the overall power and economic performance of the vehicle. The current system has obvious shortcomings in terms of high-speed operation efficiency, torque output over a wide speed range, and heat control. These shortcomings have restricted further breakthroughs and improvements in the overall vehicle performance. In response to the above-mentioned limitations, optimization design is carried out from four aspects: motor electromagnetic structure, inverter control strategy, heat management plan and transmission coordination. By means of electromagnetic field simulation and multi-physics coupling analysis, precise parameter adjustment is achieved, and a test platform is built to verify the scheme through actual measurement. The results show that the system's maximum efficiency has increased by 3.2%, the high-efficiency working range has been expanded by 15%, the power consumption per 100 kilometers has decreased by 8.7%, and the driving range has increased by 45 kilometers. This explores a feasible technical path for the high performance of the drive system.