轿车发动机恒功率时CVT响应的仿真

Response Simulation of CVT Used in Constant Power Engine in Cars

利用仿真原理和 Matlab语言对轿车的金属带式机械无级变速器 ( CVT)的自动变速功能进行了仿真分析研究 ,重点研究轿车 CVT的控制即对油门和行驶阻力变化的响应。结果表明 ,装有金属带式 CVT的轿车具有比传统的有级变速器和自动变速器更加优良的性能 ,它的最大优点是操作简便和能实现 CVT与发动机的最佳匹配。

In this paper,the simulation principle and Matlab Language are used to carry out the simulation analysis study of the auto speed change functions of metal belt type of continuous variable transmission (CVT) used in cars. Priority is given to studying the car CVT control,i.e its effect on the oil gate and changes in travel resistances. The results indicate that thecars with metal belt type CVT are of better performance than those with traditional step transmission and auto speed change transmission,whose biggest advantages are easy to operate and able to achieve the best matching of CVT with the engine.