【摘要】 建立使用发动机中等复杂模型和非线性刹车模型的车辆纵向运动数学模型。使用基于模糊逻辑和遗传算法的复杂对象控制器自动设计方法设计刹车控制器,构造一种油门和刹车切换逻辑,再基于刹车控制器和切换逻辑使用自动设计方法设计油门控制器,共同构成纵向运动控制器(LMC)。仿真检验LMC在IV巡航控制和自适应巡航控制中的有效性,结果表明所设计的LMC完全可以满足IV纵向运动高精度、强鲁棒性和平顺性的要求。更多还原

【Abstract】 Firstly,vehicle longitudinal mathematic model based on medium-level complex engine model and non-linear brake model is given.Then,the complex plant controller automatic design method based on fuzzy logic and genetic algorithm is used to design fuzzy brake controller.And switch logic of throt- tle and brake is designed.Based on the brake controller and the switch logic,throttle controller is designed by using the same automatic design method.Throttle controller,brake controller and switch logic together constitute longitudinal motion con- troller(LMC).Lastly,validities of LMC in IV cruise control and adaptive cruise control are tested through simulations.The results show that the LMC can meet IV longitudinal control performances of high precision,strong robustness and smooth- ness.更多还原