并联式混合动力新型有源传动装置动力换档特性

Power Shift Feature Research of a Novel Active Transmission for Parallel Hybrid Vehicle Use

摘要:

开发了一种基于定轴齿轮传动方式并集成电机的新型混合动力车用有源传动装置，通过自动切换机构，电机可选择性地与变速器输入轴或输出轴建立动力传递路径.一方面当电机与输入轴连接时，可利用档位速比实现高效驱动；另一方面在换档时，电机可通过短时与输出轴连接，实现无动力中断换档.完成了EMT(electrified manual transmission)的动力性匹配设计，并通过仿真分析详细说明了EMT实现无动力中断换档的过程.结合第一轮样机的开发及台架试验，考察了换档期间电机维持车辆动力不中断的能力.

Abstract:

A novel active transmission for parallel hybrid vehicle use was developed, which was based on the fixed axis gear and integrated the driving motor. Through automatic switch actuator, the motor could connect to the input or output shaft selectively. The former assured that, it could work efficiently by using gear ratios properly. During gear shift, it could supply wheels with driving force continuously by temporarily connecting to the output shaft. Dynamic property matching design of Electrified Manual Transmission(EMT) was accomplished. Through simulation, the way, how EMT realized gear shift process without power interrupt, was explained. Based on the development of the first prototype and test bench experiment, the ability of motor to maintain driving force uninterrupted during gear shift process was analyzed.