新能源汽车驱动系统电磁兼容测试研究——以波导管尺寸与传动轴材料对屏蔽效能影响为例

新能源汽车的驱动系统不同于传统汽车的内燃机形式。文章阐述了电机传动系统在电磁兼容测试中的重要性与特殊性,分析了波导管尺寸与屏蔽效能的关系,通过测试分析比较了不同尺寸波导管与不同材料传动轴对电波暗室屏蔽效能的影响。

The drive system of new energy vehicles differs from the internal combustion engine of traditional vehicles. The article describes the importance and particularity of electrical transmission system in electromagnetic compatibility test, analyzes the relationship between dimensions of waveguide tube and shielding effectiveness. Based on testing, the article analyzes and compares the influence of different sizes of the waveguide tube and different materials of transmission shaft on the shielding effectiveness of anechoic chamber.