新能源汽车电机驱动系统性能优化设计

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中图分类号：U469.7 文献标识码：A 文章编号：1003-8639（2026）03-0030-03

【Abstract】The driving performance of the motor in new energy vehicles is directly related to the overall powerand economic performance ofthe vehicle.Thecurrent system has obvious shortcomings in termsof high-speed operationeficiency，torqueoutput overa wide speedrange，and heat control.Theseshortcomingshaverestricted further breakthroughsand improvements in the overallvehicle performance.Inresponse to the above-mentioned limitations， optimization design is carried out from four aspects： motor electromagnetic structure，inverter control strategy，heat management plan and transmisioncoordination.By means of electromagnetic field simulationand multi-physics coupling analysis，preciseparameteradjustmentisachieved，anda test platform isbuilt toverifythescheme throughactual 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 1OO kilometers has decreased by 8.7% ， and the driving range has increasedby45 kilometers.This exploresa feasible technical path forthe high performance of the drive system.

【Key words】 new energy vehicles; motor drive system;electromagnetic structure design

0 引言

在环保压力不断加大和能源结构持续调整背景下，新能源汽车产业快速成长且市场占有率不断提高。（剩余3722字）