一种汽车主减速器传动比选择方法  

A selection method for the transmission ratio of automobile main reducer

作　　者：廖武 张永康 Liao Wu;Zhang Yongkang(Chassis Design Department,Passenger Vehicle Research Institute,Anhui Jianghuai Automobile Technology Center,Anhui Hefei 230601)

机构地区：[1]安徽江淮汽车技术中心乘用车研究院底盘设计部,安徽合肥230601

出　　处：《汽车实用技术》2018年第15期92-93,共2页Automobile Applied Technology

摘　　要：主减速器的传动比,对汽车的动力性能和经济性能有较大的影响。一般来说,主减速比越大,加速性能和爬坡能力较强,而燃料经济性比较差。但如果过大,则不能发挥发动机的全部功率而达到应有的车速。主减速比越小,最高车速较高,燃料经济性较好,但加速性和爬坡能力较差。文章结合经验和理论分析,得到最佳主减速器传动比,使之可以兼顾动力性与经济性。The deceleration ratio of the main reducer has a great influence on the dynamic performance and fuel economy of the vehicle.Generally speaking,the greater the main deceleration ratio,the higher the acceleration and climbing ability,and the poorer the fuel economy.But if it is too large,it can not exert all the power of the engine to achieve the required speed.The smaller the main reduction ratio is,the higher the vehicle speed is,the better the fuel economy is,but the acceleration and climbing ability are poor.Based on experience and theoretical analysis,the optimum transmission ratio of main reducer can be obtained,which can give consideration to both power and economy.

关 键 词：主减速器 传动比 动力经济性 

分 类 号：U463.2[机械工程—车辆工程]