搭载机电式CVT的纯电动系统动力性调速策略  

Power Shifting Strategy of Electric System Equipped with Mechanic-electric Continuously Variable Transmission

作　　者：叶明[1] 程越[1] 丁锐 

机构地区：[1]重庆理工大学汽车零部件制造与检测技术教育部重点实验室,重庆400054 [2]一汽马自达汽车销售有限公司,吉林长春130012

出　　处：《机械传动》2012年第6期29-33,共5页Journal of Mechanical Transmission

基　　金：重庆市教育委员会科学技术研究项目(KJ110811);汽车零部件制造及检测技术教育重点实验室开放基金(2010KLMT03)

摘　　要：通过对机电控制无级自动变速器结构的分析,提出纯电动车搭载机电控制CVT的传动方案。根据传动方案,建立了电机数值模型、电池放电数学模型和CVT速比控制模型。综合考虑电机效率、电池SOC和整车特性,制定了整车动力性CVT调速策略。在MATLAB/SIMULINK仿真平台上,搭建了系统加速性能仿真模型,并进行了搭载机电控制CVT纯电动车加速性能仿真。仿真结果表明,采用所提出的调速策略与传统两档调速策略相比,能更好地发挥系统性能,提高加速能力。为机电控制CVT的应用提供理论参考。Configuration of electric system equipped with mechanic-electric continuously variable transmission（CVT） is put forward based on the analysis of work principle of mechanic-electric CVT.According to configuration mathematic model of motor,batteries and CVT are built up.Power shifting strategies of CVT are put forward considering motor efficiency,state of charge and vehicle parameters.Simulation model is designed and simulation results indicate that the power performance of electric vehicle is improved by using control strategies.

关 键 词：无级自动变速 调速 电动汽车 

分 类 号：U469.72[机械工程—车辆工程]