混联混合动力车辆功率分流耦合机构特性分析  

An Analysis on the Characteristics of Power-split and Coupling Mechanism in Series/Parallel HEV

作　　者：项昌乐[1,2] 韩立金[1] 刘辉[1,2] 李宏才[1] 

机构地区：[1]北京理工大学机械与车辆工程学院,北京100081 [2]车辆传动国家重点实验室,北京100081

出　　处：《汽车工程》2010年第3期183-187,共5页Automotive Engineering

摘　　要：分析了功率分流耦合机构的转速与转矩关系,在此基础上推导了功率分流比例与传动比和行星排特性参数的关系,研究了不同功率电机所能实现的传动比变化范围,和耦合装置效率随传动比变化的规律。最后分析了带功率分流耦合机构的车辆在起步、匀速行驶和加速等工况下的驱动特性,为功率分流混合动力车辆关键部件的参数匹配和整车控制策略的制定提供了参考。The relationship between speed and torque of power split and coupling mechanism is analyzed.Based on this,the relation between power split ratio,drive ratio and the characteristic parameters of planetary gear set is derived,and the variation range of drive ratio the electric motor with different power can attain as well as the changing law of coupling device efficiency with drive ratio are studied.Finally the driving characteristics of vehicle with power split and coupling mechanism at starting,cruising and acceleration conditions are analyzed,providing references for working out the parameters matching of key components and vehicle control strategy.

关 键 词：混联混合动力车 功率分流 耦合机构特性 

分 类 号：U469.7[机械工程—车辆工程]