中文摘要：

针对一种单电机重度混合动力驱动系统的动力耦合机构进行了结构设计,重点进行了单向离合器的选型和湿式多片离合器的设计.开展了动力耦合机构可靠性FMEA（Failure Mode and Effects Analysis）定性分析,提出了动力耦合机构可能的故障模式及其对子系统、零部件的可靠性影响.提出了动力耦合机构可靠性台架试验的方法,开展了ISG电机（Integrated Starter and Generator,即汽车起动发电一体机）原地启动发动机可靠性台架试验和行进问启动发动机可靠性台架试验,并对试验结果进行了分析,对动力耦合机构的设计及可靠性分析理论进行了验证.试验结果表明：所设计的动力耦合机构满足重度混合动力汽车的功能需求,为实现动力耦合机构装车运行奠定了基础.

英文摘要：

A kind of power coupling mechanism in full hybrid electric vehicle is designed in the paper. To choose the type of one-way clutch and to design the multi-disk wet clutch are focused on. FMEA is used to analyze the reliability of power coupling mechanism. The possible failure modes of power coupling mechanism and the effects that may happen to the subsystem and components are presented. The method of bench scale test for the reliability of power coupling mechanism is proposed. Bench scale tests are done for ISG starting engine in site and for the vehicle in moving. The test results are analyzed to verify both the design and the reliability theory of power coupling mechanism. And the result shows that the designed power coupling mechanism can meet the functional needs of full hybrid electric vehicle which has laid the foundation for power coupling mechanism to be run in the hybrid vehicle.