车用轮毂电机温度特性实验研究

In-wheel motor for direct drive is one of the important developing trend for new energy automobile, but due to structure constraints, its heat dissipation has been a problem. For exploration of the law of temperature rise and performance change under full conditions, the paper studies the in-wheel motor's heating and performance change under different working conditions and environment temperatures. The variation of motor heating and performance with temperature change from motor stalling to standard condition was obtained through theoretical calculation and temperature-rise test, which laid foundation for the in-wheel motor's structural optimization and matching control.