%0 Journal Article
%T 复合式汽车变速器最佳经济性速比优化算法研究<br>Exploring Optimum Economy Ratio Optimization Algorithm for Compound Automotive Transmission
%A 曹凤萍
%J 机械科学与技术
%D 2016
%X 复合式汽车变速器,由金属带式无级变速器(continuously variable transmission,CVT)和有级变速传动装置组成,可根据汽车工况的需要分别实现无级变速传动和有级变速传动。综合考虑了发动机效率和CVT效率对汽车油耗的影响,提出了一种复合式汽车变速器最佳经济性速比优化方法。首先建立了动力传动系统的数值模型,为系统优化匹配和仿真分析奠定了基础。其次,建立了CVT最佳经济性速比匹配优化目标函数模型。基于simulationX软件,建立了装有复合式变速器的汽车仿真模型,对CVT的最佳经济性速比进行了优化,并对比分析了速比优化前后汽车的动力性和燃油经济性,证明了本文算法的有效性和实用性。<br>A compound automotive transmission is composed of a metal belt continuously variable transmission (CVT) unit and a shuttle transmission component and can realize the CVT and variable transmissions according to the automotive operation mode. To study the compound automotive transmission, the paper proposes an optimum economy ratio optimization algorithm that takes into account the efficiency of the engine of the automotive and CVT. Firstly, the mathematical model of its drivetrain was established and includes the engine output torque model of the engine and its efficiency model and CVT. Secondly, the optimum fuel economy optimization objective function was built. With SimulationX, the simulation car model of the compound automotive transmission was designed and its optimum economy ratios were optimized. By comparing the automotive dynamics and fuel economy before and after optimization, the validity of this method was verified
%K 复合式变速器
%K 最佳经济性
%K 速比优化
%K SimulationX软件&lt
%K br&gt
%K compound automotive transmission
%K computer simulation
%K continuously variable transmission
%K optimum economy ratio optimization algorithm
%U http://journals.nwpu.edu.cn/jxkxyjs/CN/abstract/abstract6355.shtml