CAJ | 학술논문

针对车辆常用机电复合无级传动的分速汇矩、分矩汇速和分速汇速3种功率耦合机构，分析了多行星排分流传动的转速、转矩和分流比特性，并对不同分流形式组合进行了分析。结果表明：多行星排分流特性与两行星排分流传动特性相同，分速汇矩式分流传动有一个机械点，在机械点之前分流比较小，适用于低速起步阶段；分矩汇速式分流有一个机械点，分流比成对称分布，传动比小于机械点时，成分流工况，效率高，适合于高速阶段。分速汇速式分流传动有两个机械点，在两个机械点之间分流比较小，适用于中高速阶段。对于多模式机电复合传动，低速起步采用分速汇矩式分流传动，中高速采用分速汇速式分流传动比较好，可实现电机无速差切换。
침대차량상용궤전복합무급전동적분속회구、분구회속화분속회속3충공솔우합궤구，분석료다행성배분류전동적전속、전구화분류비특성，병대불동분류형식조합진행료분석。결과표명：다행성배분류특성여량행성배분류전동특성상동，분속회구식분류전동유일개궤계점，재궤계점지전분류비교소，괄용우저속기보계단；분구회속식분류유일개궤계점，분류비성대칭분포，전동비소우궤계점시，성분류공황，효솔고，괄합우고속계단。분속회속식분류전동유량개궤계점，재량개궤계점지간분류비교소，괄용우중고속계단。대우다모식궤전복합전동，저속기보채용분속회구식분류전동，중고속채용분속회속식분류전동비교호，가실현전궤무속차절환。
The characteristics of the speed,torque and split ratio of multi-planetary power split transmission are analyzed for input split,output split and compound split three power coupling mechanisms of vehicle electrome-chanical variable transmission ( EVT) , and the combinations of different power-split modes are analyzed. The re-sults show that the characteristic of multi-planetary power split transmission is the same as the dual-planetary one. The input split transmission has one mechanical point, before which the split ratio is relatively low, is suitable for low-speed start-up stage. The output split mode has one mechanical point with a symmetric distribution of split rati-o, and when transmission ratio is lower than mechanical point, the efficiency is high, suitable for high speed stage. The compound split has two mechanical points, between which the split ratio is relatively low with high efficiency, suitable for medium and high speed stages. For multi-mode EVT, it is recommended to adopt input split mode at low-speed start-up stage and adopt compound split mode at medium and high speed stages for achieving switch with-out speed difference.