液压机械双流传动变速系统换挡过程平顺性优化方法与仿真分析  

Ride comfort optimization and simulation analysis of hydro-mechanical continuously variable transmission shift process

作　　者：姜明亮 陆军 孙保群 常佳男 JIANG Mingliang;LU Jun;SUN Baoqun;CHANG Jianan(Institute of Automobile Engineering Technology,Hefei University of Technology,Hefei 230009,China)

机构地区：[1]合肥工业大学汽车工程技术研究院,安徽合肥230009

出　　处：《合肥工业大学学报（自然科学版）》2018年第11期1473-1478,共6页Journal of Hefei University of Technology：Natural Science

基　　金：合肥工业大学产学研校企合作资助项目(W2014JSKF0787)

摘　　要：文章通过对液压机械双流传动变速器(hydro-mechanical continuously variable transmission,HMCVT)液压系统、机械系统与整车动力性的理论计算,得出输出轴角加速度计算公式,提出通过调节液压系统压力来优化换挡平顺性的方法。采用AMESim软件对未优化模型和优化模型进行仿真分析,结果表明具有压力调节系统的液压压力变化平稳,输出轴角加速度显著减小,换挡平顺性好。该文还得出了HMCVT换挡过程中关键参数的变化过程。Abstract：The hydro mechanical continuously variable transmission（HMCVT） output shaft angular acceleration is calculated based on the hydraulic system, mechanical system and vehicle dynamic analysis theory of HMCVT, the output shaft angular acceleration formula is acquired, and the method for optimizing the ride comfort by adjusting the pressure of the hydraulic system is put forward. The AMESim software is used to simulate and analyze the optimization model and the model without optimization, respectively. It is concluded that the hydraulic pressure with the pressure regulating system is stable, the angular acceleration of the output shaft is significantly reduced, and the ride comfort is good. The change process of the key parameters in the HMCVT shift process is also obtained.

关 键 词：液压机械双流传动变速器(HMCVT) AMESIM软件 换挡过程 平顺性优化 

分 类 号：U463.222[机械工程—车辆工程]