某轿车动力传动系统参数匹配优化设计  

Optimal Design on Power Transmission System Parameters Matching of a Car

作　　者：戚景卫[1] 吕彩琴[1] 

机构地区：[1]中北大学机械与动力工程学院,山西太原030051

出　　处：《汽车零部件》2014年第1期59-61,48,共4页Automobile Parts

摘　　要：为研究发动机和传动系统的合理匹配关系,提出在发动机已经选定的情况下,通过选择不同的传动系参数来使发动机的工作处于更加接近理想的工作区域。首先用AVL CRUISE软件对某轿车建模与仿真,得出动力性和经济性相关参数值,其后对主减速器和变速器参数进行优化,得到新的传动系参数。将优化后的褴车动力性和经济性仿真结果与原车型相比,结果显示,该轿车的动力性变化不大,经济性有所改善。To study the rational matching relations between the engine and transmission system, different transmission parameters were chosen to make the seleeted engine work area in closer to the ideal work area. By modeling and simulation of a car using AVL CRUISE soft- ware, the power performance and fuel economy of the relevant parameters were obtained. By optimizing the main reducer anti transmission pa- rameters, the new drivetrain parameter was got. The simulation results of vehicle performance and fuel economy of the optimal model were compared with that of the original model. The results show that the power performanee of the car changes little and the eeonomy is improved.

关 键 词：动力传动系统 参数匹配 动力性 经济性 

分 类 号：U463.2[机械工程—车辆工程]