【摘要】 为提高无级变速汽车控制系统对外界负荷扰动和各种运行工况的自适应能力,本文在简单的无级变速系统模型的基础上,设计了无级变速汽车的自适应模糊控制系统.所设计的自适应模糊控制系统由参数自调节油门模糊控制器和混合型模糊＿PID的无级变速器速比和制动控制器构成,该控制系统只与汽车的瞬时运行状态有关而与汽车的参数无关,因此它对不确定的汽车参数和外界负荷的扰动具有良好的鲁棒性.仿真结果表明所设计的模糊控制系统具有良好的自适应能力.更多还原

【Abstract】 Based on the simple CVT (continuously variable transmission) driveline model, an adaptive fuzzy control system for CVT vehicle was designed to improve the adaptability of the control system for CVT vehicle. The adaptive fuzzy control system consisted of a scaling factor self-tuning fuzzy throttle controller, and a hybrid fuzzy-PID CVT ratio and brake controller. The adaptive fuzzy control strategy is independent of vehicle model, and depends only on the instantaneous vehicle states. So it has good robustness to uncertain vehicle parameters and exogenous load disturbance. The simulation results showed that the proposed adaptive fuzzy system has good adaptability.更多还原