基于对插电式混合动力汽车( PHEV)的两种耦合(转矩耦合或转速耦合)方式的结构和运动特性的分析，提出了一种转速耦合与转矩耦合交替工作的动力耦合系统，并根据行星齿轮机构的转速特性的分析计算了系统的结构设计参数。在MATLAB/Simulink平台上对该系统进行了联合仿真，结果表明：其动力性指标满足设计要求，而且与其他单一耦合系统相比，在动力性能指标相同的情况下，能有效减小动力部件的尺寸和质量。%Based on an analysis on the structure and motion characteristics of two coupling modes ( torque coupling and speed coupling) in a plug-in hybrid electric vehicle, a power coupling system is proposed, in which torque coupling and speed coupling are in operation alternately. The design structural parameters are calculated ac-cording to the analysis on the speed characteristics of planetary gear mechanism and a co-simulation on the system is conducted with MATLAB/Simulink platform. The results indicate that the power performance indicators of the cou-pling system proposed meet the design requirements. In addition, compared with single coupling systems in the same condition of power performance indicators, the size and mass of power components with proposed coupling sys-tem can be effectively reduced.
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