长安之星微车装备自动变速器后的动态特性仿真

Simulation of the Dynamic Performance of CHANASTAR Minicar with Automatic Transmission

结合长安汽车有限公司的AT微车装车项目 ,建立了AT汽车动力传动系统的动态工况模拟系统进行了发动机和液力变矩器的性能试验 ,并绘制了相关特性曲线。制定了兼顾动力性和经济性的两参数换档规律 ,利用模糊控制理论建立了驾驶员模糊控制模块 ,并根据整车动力学方程建立了车辆动力学模型。在此基础上对装备液力机械自动变速器的SC6 35 0B长安之星微车进行了动力性能、等速行驶经济性和 10工况计算机仿真。仿真结果显示 ,该系统可较好地对实际运行工况进行模拟 ,整车的动力性能和经济性能良好 ,基本满足原型车的技术要求 ,从而为该改型项目提供了理论依据。同时 。

According to the AT minicar project of Changan Automobile CO.Ltd.,the system for simulating the dynamic driving mode of the powertrain with Automatic Transmission is established.The engine and hydraulic torque converter are tested,and the character diagrams are protracted.The two parameter shift rule and the driver fuzzy control module are established.On the basis of dynamical equation,the kinetic model of car is established.With the system,the dynamic and economical performances and ten-mode driving status are simulated.The simulation results show that the system can simulate the actual driving status well,the dynamic and economical performances of the minicar basically meet the technical requirements.The theoretic foundation is provided to the project.The foundation of cruise control is constituted.