Parameter design and performance analysis of zero inertia continuously variable transmission system
来源期刊：中南大学学报(英文版)2015年第1期
论文作者：Hu Jian-jun(胡建军) Ji Yi(吉毅) Yan Jiu-jiang(晏玖江)
文章页码：180 - 188
Key words：continuously variable transmission; inertia; optimization; fuzzy control; simulation
Abstract: In order to solve the problem of weak power performance of vehicle equipped with continuously variable transmission (CVT) system working under transient operating conditions, a new CVT equipped with planetary gear mechanism and flywheel was researched, a design method of transmission parameter optimization was proposed, and the comprehensive matching control strategy was established for the new transmission system. Fuzzy controllers for throttle opening and CVT speed ratio were designed, and power performance and fuel economy of both vehicles respectively equipped with conventional CVT system and new transmission system wrere compared and analyzed by simulation. the results show that power performance and fuel economy of the vehicle equipped with new transmission system are better than that equipped with conventional CVT, thus the rationality of the parameter design method and control algorithm are verified.
Hu Jian-jun(胡建军), Ji Yi(吉毅), Yan Jiu-jiang(晏玖江)
(State Key Laboratory of Mechanical Transmission (Chongqing University), Chongqing 400044, China)
Abstract:In order to solve the problem of weak power performance of vehicle equipped with continuously variable transmission (CVT) system working under transient operating conditions, a new CVT equipped with planetary gear mechanism and flywheel was researched, a design method of transmission parameter optimization was proposed, and the comprehensive matching control strategy was established for the new transmission system. Fuzzy controllers for throttle opening and CVT speed ratio were designed, and power performance and fuel economy of both vehicles respectively equipped with conventional CVT system and new transmission system wrere compared and analyzed by simulation. the results show that power performance and fuel economy of the vehicle equipped with new transmission system are better than that equipped with conventional CVT, thus the rationality of the parameter design method and control algorithm are verified.
Key words:continuously variable transmission; inertia; optimization; fuzzy control; simulation
