采用多模式变速器单电机混合电动汽车的分析与仿真

Analysis and simulation of a hybrid electric vehicle using a multi-mode transmission and a single electric machine

设计了一种采用多模式变速器(MMT)的单电机混合动力汽车,并进行了性能验证。该汽车采用了双行星排、4个离合器耦合发动机和电机动力的变速器,该电机可作为电动机或发电机运行。实现5种不同的能量流模式,含16种工作模式,包括不同的驱动模式、制动模式及停车发电模式。在中国典型驾驶循环(CGDC)、日本市区及高速循环(JUHC)、新欧洲循环(NEDC)及美国联邦测试程序72(FTP72)等工况下,进行了该汽车油耗的仿真。与采用双行星排无离合器结构的典型双电机混合动力汽车进行了对比模拟。相比,结果显示:该汽车的油耗具有可比性。因不使用额外的电机及其电力电子元件,该汽车具有应用潜力。

This paper presents a multi-mode transmission （MMT） for a hybrid electric vehicle （HEV） using a single electric machine （EM） and validates its performance. The MMT uses two planetary gear sets and four clutches to combine an engine and an EM with the vehicle, with the EM operated as a motor or a generator. This HEV realizes five power flow modes, which are developed into sixteen operation modes, including various driving, braking, and charging while parking modes. Fuel economy simulations of the vehicle were performed in Chinese General Driving Cycle, Japan Urban and Highway Cycle, New Europe Driving Cycle, and Federal Test Procedure 72, respectively. Comparable simulations were obtained with a benchmark vehicle which has a planetary gear set, two EMs and no clutch. The results indicate the application potential of the proposed single EM HEV, as the proposed HEV does not use extra electric machines and extra power electronics.