摘要
针对纯电动汽车驱动特点,研究了一种新型的面向纯电动汽车的动力换挡式机械变速器,该变速器由单作动件实现换挡,传动结构与机械式变速器相似。推导并建立了换挡过程的数学模型,研究了变速器转矩相与惯性相动态性能,结合台架实验结果,论证了研发的变速器在高低挡切换时,动力交替过程保持连续变化,能够满足快速平稳动力换挡性能。对变速器在整车应用方面进行了研究,结果表明,与其他变速器相比,研发的变速器能够较好地兼顾电动汽车整车性能和成本要求。
A novel power shift mechanical transmission for pure electric vehicle was put forward, which was accomplished by single actuator. A mathematical model of this 2-speed transmission system was set up,both of the dynamics performance of torque phase and inertial phase during gear shift was studied. Combined with the bench test results, it is shown that the transmission has the characteristics of power seamless during gear shift because of the power transmitted by high and low gears keeps a linear and continuous change. Moreover, vehicles equipped with this 2-speed mechanical transmission were also studied on power performance and economy, the results show that compared to other trans- missions, the vehicle performance and cost issues are given consideration to through this transmission.
出处
《中国机械工程》
EI
CAS
CSCD
北大核心
2015年第12期1697-1703,共7页
China Mechanical Engineering
基金
国家自然科学基金资助项目(51405087)
关键词
纯电动汽车
机械式变速器
动力换挡
整车性能
pure electric vehicle
mechanical transmission
power shift
vehicle performance
