基于巴哈赛车中橡胶皮带式CVT的特性研究  

Research on the Characteristic of Rubber Belt Type CVT in Baja Racing Car

作　　者：金兆辉 单沅 王达[1] 孙庆松 马振禹 李铭义 Jin Zhaohui;Shan Yuan;Wang Da;Sun Qingsong;Ma Zhenyu;Li Mingyi(College of Automotive Engineering,Jilin University,Changchun 130025,China)

机构地区：[1]吉林大学汽车工程学院,吉林长春130025

出　　处：《机械传动》2022年第1期143-147,共5页Journal of Mechanical Transmission

基　　金：国家自然科学基金(51876079);吉林大学2019年度本科教学改革研究立项项目(2019XYB123);2019年吉林大学开放性创新实验项目(426OEP24);吉林大学2021年度本科教学改革研究立项项目(2021XYB086);2021年吉林大学开放性创新实验项目(426OEP25)。

摘　　要：为了提高橡胶式CVT的传动效率,使发动机与整车有更好的动力性匹配,进行了发动机与CVT的台架实验,绘制出发动机、CVT外特性和影响CVT因素的曲线。结果表明,在不改变CVT结构的前提下,温度是影响CVT效率的主要因素;在温度为55℃时,CVT能保持一个较高的效率。根据CVT外特性曲线绘制驱动力曲线,确定减速器的总传动比为12.9,并确定CVT中的轻甩块与重弹簧的组合可使赛车能较快地到达理论最高车速。In order to improve the transmission efficiency of the rubber CVT and better match the power performance of the engine and the whole vehicle,the bench test of the engine and CVT is carried out,and the curves of starting motor,external characteristics of CVT and influencing factors of CVT are drawn.The results show that,without changing the structure of the CVT,the temperature is the main factor that influence the efficiency of the CVT,and at the age of 55℃CVT maintain a high efficiency.According to the driving force curve drawing CVT external characteristic curve,determine the total transmission ratio for the gear reducer is 12.9,and determine the CVT light left block and the combination of the heavy spring can make the car can quickly reach the highest speed.

关 键 词：CVT 效率提升 动力匹配 

分 类 号：U469.696[机械工程—车辆工程]