混合动力汽车传动系统共振转速优化分析  

Resonance Speed Optimization Analysis of Driveline for Hybrid Electric Vehicles

作　　者：王凯[1] 于海生[1,2] 邹良[1] 张建武[1] 张彤 

机构地区：[1]上海交通大学 [2]上海华普汽车有限公司

出　　处：《汽车技术》2013年第7期1-5,共5页Automobile Technology

摘　　要：为解决某混合动力汽车传动系统振动和噪声的问题,建立了复合行星轮系和整车传动系统的扭转振动力学模型对该传动系统进行扭转振动分析。在计算传动系统固有频率的基础上,通过扭转减振器的刚度匹配实现共振转速的优化。研究发现,系统在某特定转速比下出现共振特性且在一定范围内随减振器刚度增大而增大;通过减小减振器刚度可以使共振转速远离发动机怠速转速范围,从而提高整车平顺性和乘坐舒适性。To solve some vibration ＆ noise related problems of driveline of a hybrid electric vehicle（HEV）,dynamic models of the compound planetary gear train and drivetrain were established respectively for torsional vibration analysis.Based on the calculation of the natural frequency,resonant speed of the drivetrain was optimized through the stiffness matching of torsional damper.The analysis results indicate that the resonant characteristic emerges at specific speed,which increases with the damper stiffness at a certain range.By reducing damper stiffness,resonant speed can be drifted away from engine idling speed range,thus improving vehicle ride comfort.

关 键 词：混合动力汽车 传动系统 共振转速 优化 

分 类 号：U463.2[机械工程—车辆工程]