摘要
先建立了整车的惯性模型,得到了速比变化率对整车加速度影响的动态特性。再根据车速、速比与发动机转速之间的关系推得目标速比的理论模型,同时建立起用PID理论构建的速比控制器。最后进行仿真,其结果与原车型的实际状况具有良好的一致性,验证了理论分析的正确性。研究表明,文中的计算仿真模型是可行和可靠的,具有实用价值。
Firstly, the vehicle inertial model is established, and the dynamic response of speed ratio changing to vehicle acceleration is gained. Then according to the relation of vehicle velocity, speed ratio and engine rotate speed, the theory model of target ratio is reasoned, at the same time, the ratio controller designed by PID theory is established. At last is the simulation. The result is equal to the truly status of actual vehicle. It validates that theory analysis is correct. The research result proves that, the calculation and simulation model in this paper are feasible and reliable, and of practical value to further research.
出处
《菏泽学院学报》
2009年第5期65-69,114,共6页
Journal of Heze University
关键词
无级变速器
速比控制
整车仿真
continuously variable transmission
changing rate of speed ratio control
vehicle simulation
