【摘要】 以新型锥环无级变速器为研究对象,针对在车辆速比变化较大工况下目标速比阶跃输入对实际速比影响较大的情况,采用变速积分PID控制器对锥环无级变速器的速比进行控制。通过Matlab/Simulink建立整车仿真模型和变速积分控制器模型,对急加速和全减速两种典型工况进行仿真分析,验证整车仿真模型和变速积分速比控制策略的正确性。基于dSPACE系统对搭载锥环无级变速器的样车进行实车试验,将试验结果与仿真结果对比,验证速比控制策略的可行性。更多还原

【Abstract】 KRG is studied as a new type of CVT.PID with variable integral is designed to control the speed ratio of KRG,under the influence of target speed ratio step input to actual speed with the driving condition of large speed ratio change.The vehicle simulation model and the cascade PID controller is build with Matlab/Simulink to simulate the acceleration and deacceleration typical working conditions to verify the correction of the simulation model and the PID with variable integral control strategy.The novel vehicle is test based on d SPACE and the result is compared with simulation result to verify the possibility of control strategy of speed ratio.更多还原