液压混合动力汽车在典型城市工况下的性能分析  

A Study on the Performances of a Hybrid Hydraulic Vehicle in Typical Urban Driving Conditions

作　　者：朱永明[1] 纪常伟[1] 梁晨[1] 刘晓龙[1] 

机构地区：[1]北京工业大学环境与能源工程学院,北京100124

出　　处：《汽车工程》2014年第11期1295-1301,共7页Automotive Engineering

基　　金：国家重点基础研究发展规划(2013CB228403);北京市教委科技计划重点项目(KZ201210005002)资助

摘　　要：本文中提出了一种液压混合动力无级变速器,它将发动机的输出功率分流为液压功率和机械功率两部分,通过调整两部分功率的比值,能实现无级变速,还能有效回收车辆的制动能量。通过建立数学模型和仿真,分析了装用该变速器的液压混合动力汽车在典型城市工况下的性能,结果表明,与原汽油车相比,该混合动力汽车在两种不同运行情形下分别节能10.4%和16.4%。In this paper, a kind of continuously variable transmission （ CVT） for hybrid hydraulic vehicle （ HHV） is proposed, which splits the output power of engine into hydraulic power and mechanical power two parts, and by adjusting the ratio between two parts of power, the continuous speed variation and the effective recovery of braking energy can be realized. A relevant mathematical model is built and a simulation is conducted to analyze the performance of HHV equipped with that CVT in typical urban driving conditions. The results demonstrate that the HHV can achieve energy savings of 10 . 4% and 16 . 4% respectively in two different situations compared with origi-nal gasoline vehicle.

关 键 词：液压混合动力汽车 无级变速器 液压泵/ 马达 液压蓄能器 

分 类 号：U469.7[机械工程—车辆工程]