无级变速汽车自动驾驶系统模糊控制策略

为研究无级变速汽车自动驾驶系统的模糊控制策略，建立了简化的基于底盘测功机的无级变速汽车和自动驾驶系统模型。考虑到传动系统的高阶时变非线性特性、输入和输出之间的耦合效应以及汽车运行工况和复杂的外界环境因互的影响，提出了把参数自调整的模糊ＰＩ控制算法用于油门控制系统，混合型模糊ＰＩＤ控制算法用于发动机转速控制系统。仿真结构表明，文中给出的自动驾驶系统的模糊控制策略是可行和有效的，具有实用价值。

The Fuzzy Control Strategy for Automatic-driving System of CVT Car

To study fuzzy control strategy for the automatic-driving system of a CVT car, a dynamometer-based simplified model for automatic-driving system and CVT car is established in this paper. Considering the high order nonlinearly and multiple-input-multiple-output coupling effect of CVT, and different driving condition and complex external disturbance, the fuzzy-Pi control algorithm with parameters self-tuning is employed in throttle control system, and the hybrid fuzzy PID control algorithm is adopted in engine speed control system. The results of simulation show that the fuzzy control strategy of automatic-driving system employed in this paper is effective and feasible with good practicability.