汽车工程
汽車工程
기차공정
AUTOMOTIVE ENGINEERING
2014年
6期
734-739
,共6页
混合动力轿车%动力线缆%电磁辐射强度%传输线模型
混閤動力轎車%動力線纜%電磁輻射彊度%傳輸線模型
혼합동력교차%동력선람%전자복사강도%전수선모형
hybrid electric car%power cable%electromagnetic radiation intensity%transmission line model
通过分析混合动力轿车内动力线缆的电磁耦合路径,分别建立整车车身和动力线缆的电磁仿真模型,采用“场路”耦合方法推导出线缆电磁辐射强度的计算模型,进而进行动力线缆电磁辐射特性的仿真。结果表明,动力线缆长度的变化会改变其电磁辐射频谱分布,对辐射强度影响很小;端接电阻和线缆离地距离对线缆的辐射强度影响明显,电阻越大、离地距离越大,则动力线缆辐射越强;最后通过实车测试证实,动力线缆的屏蔽对降低其电磁辐射强度有良好效果。
通過分析混閤動力轎車內動力線纜的電磁耦閤路徑,分彆建立整車車身和動力線纜的電磁倣真模型,採用“場路”耦閤方法推導齣線纜電磁輻射彊度的計算模型,進而進行動力線纜電磁輻射特性的倣真。結果錶明,動力線纜長度的變化會改變其電磁輻射頻譜分佈,對輻射彊度影響很小;耑接電阻和線纜離地距離對線纜的輻射彊度影響明顯,電阻越大、離地距離越大,則動力線纜輻射越彊;最後通過實車測試證實,動力線纜的屏蔽對降低其電磁輻射彊度有良好效果。
통과분석혼합동력교차내동력선람적전자우합로경,분별건립정차차신화동력선람적전자방진모형,채용“장로”우합방법추도출선람전자복사강도적계산모형,진이진행동력선람전자복사특성적방진。결과표명,동력선람장도적변화회개변기전자복사빈보분포,대복사강도영향흔소;단접전조화선람리지거리대선람적복사강도영향명현,전조월대、리지거리월대,칙동력선람복사월강;최후통과실차측시증실,동력선람적병폐대강저기전자복사강도유량호효과。
By analyzing the electromagnetic coupling path of power cable in hybrid electric cars, the elec-tromagnetic simulation models for car body and power cable are established respectively. Then the calculation model for the electromagnetic radiation intensity of power cable is derived and the electromagnetic radiation characteristics of power cable are simulated. The results show that the length of power cable can change its frequency spectral dis-tribution of electromagnetic radiation, but only has a little effect on radiant intensity. The effects of terminal resist-ance and the distance between cable and car body are obvious. With the increases in terminal resistance and the distance to earth point, the radiation of power cable will become more intense. Finally the test on real car verifies the good effects of power cable shielding.