基于模糊PID车姿调节控制技术研究  

Research on Vehicle Height Adjustment Control Technology Based on Fuzzy-PID

作　　者：徐广龙[1] 陈宇[1] 金昊龙[1] 侯友山[1] XU Guanglong;CHEN Yu;JIN Haolong;HOU Youshan(China North Vehicle Research Institute,Beijing 100072,China)

机构地区：[1]中国北方车辆研究所,北京100072

出　　处：《机床与液压》2020年第19期82-86,93,共6页Machine Tool & Hydraulics

摘　　要：车姿调节技术能够显著提升车辆行驶平顺性和通过能力。针对传统车姿调节技术中控制精度差等问题,基于模糊PID控制器及控制算法建立了车姿调节过程的数学模型。基于Simulink平台建立了仿真模型,并重点对车姿升高过程进行了仿真分析和实验验证。为了优化低速动态车姿调节时系统不能及时稳定的问题,提出了一种目标车高修正方法。在某轻型轮式平台上进行了模糊PID控制算法的实车验证,验证结果表明:所搭建的模糊PID控制算法模型准确,实际控制效果良好,有效提升了车姿调节的精度和稳定性。Vehicle height adjustment technology can significantly improve vehicle ride comfort and trafficability. Aimed at the problem of poor control accuracy in traditional vehicle height adjustment technology, the mathematical model of the vehicle height adjustment process was established based on fuzzy-PID controller and the control algorithm. Based on Simulink platform, the simulation model was established, and the simulation analysis and experimental verification of the vehicle height rising process were carried out. In order to optimize the problem that the system cannot be stabilized in time during the low-speed dynamic vehicle height adjustment process, a target vehicle height correction method was proposed. Real vehicle test of fuzzy-PID control algorithm was carried out in a light wheeled platform. The verification results show that the fuzzy-PID control algorithm model is accurate, the actual control effect is good, and the accuracy and stability of vehicle height adjustment are effectively improved.

关 键 词：车姿调节 模糊控制 PID算法 SIMULINK仿真 

分 类 号：TH137[机械工程—机械制造及自动化]