混合动力客车中电磁干扰对发动机ECU功能的影响及改进.pdf

文档介绍：柴油机设计与制造
年第期第卷(总第期)
Design &Manufacture of Diesel Engine 2010 3 16 132
doi: .1671-
混合动力客车中电磁干扰
对发动机功能的影响及改进
ECU
董悦航,孙磊,杜建福
(上海汽车集团股份有限公司商用车技术中心,上海, )
200438
摘要新能源汽车装备高压元器件,因而其性能极大影响着整车安全性能,也是目前
EMC
新能源车研究的关键点在对比混合动力客车的电磁环境和传统车的电磁环境区别的基础上,分
。
析了混联大客车中高压电元器件引起的传导干扰和辐射干扰对发动机性能的影响辐射干
ECU 。
扰导致整车控制器( ) 发送给发动机的油门电压信号有较大波动,引起发动机故障报
VCU ECU
警高压线路对发动机有传导干扰的情况下,发动机共轨压力出现异常,导致发动机故障
。 ECU
报警在采取相应措施后,整车能力大幅度提高
。 EMS 。
关键词:混合动力客车柴油机电磁兼容电磁干扰
The Influence of EMIof Hybrid Bus on the ECU of Diesel Engine
and Improvement of EMS
Dong Yuehang, Sun Lei, Du Jianfu
( )
Commercial Vehicle Technical Center of SAIC Motor Group Ltd., Corporation, Shanghai, 200438, China
Abstract: New energy vehicles are equipped with high ponents. Driving safety of a new
energy vehicle is greatly influenced by the capability of EMCof the whole vehicle. Research of EMCis a key
work at home and abroad, and this will continue in the future. The performance of diesel engine ECU (engine
control unit) is affected greatly by the conducted interference and radiated interference which are induced by
high voltage battery and motor and so on. The cause of interference effect is analyzed based on different
ic conditions of the traditional vehicles and hybrid vehicles. Radiated interference results in
the fluctuation of acceleration pedal