摘要
本文将汽车主动悬架作为研究对象,为了便于分析,首先将主动悬架简化为1/4悬架,然后根据牛顿定律,汽车系统动力学相关知识建立悬架系统的数学模型,在工程技术领域中,通常用车身加速度、悬架动挠度以及车轮动载荷作为评价悬架的指标。在这三个指标当中,车身加速度可以反应汽车车身的振动特点,所以尤为重要。因此,在本文中,将车身加速度选取为系统的控制目标,分别设计P,I,D及PID控制器,并利用MATLAB仿真软件得到其相应的仿真效果图,进一步通过对仿真结果的对比分析,最终选取合理的控制参数,得到了汽车悬架的PID控制器。
This study researched on the active suspension and simplified it as 1/4 suspension. Then, based on the Newton theorem and vehicle dynamics theory, a math model of 1/4 active suspension was built. In the field of engineering technology, body acceleration, suspension dynamic deflection and wheel dynamic load were taken as evaluation index of Automobile suspension. Among these three indicators, body acceleration was very important. The body acceleration was taken as the control objective. By MAT- LAB simulation software and its corresponding simulation the result is obtained. By comparing the per- formance between P, I, D and PID controller, the latter was selected as controller.
作者
李洁
黄艳宾
杨静
郭依曼
石丁丁
LI Jie1, HUANG Yan-bin2, YANG Jing1, GUO Yi-man1, SHI Ding-ding1(1. Electromechanical College, Handan University, Handan 056005, China ; 2. School of Mathematics and Physics, Hebei University of Engineering, Handan 056038, Chin)
出处
《系统科学学报》
CSSCI
北大核心
2018年第2期101-104,共4页
Chinese Journal of Systems Science
基金
河北省科技计划项目(16214525)
邯郸市科学技术研究与发展计划项目(1121103183,1721202044-4)
邯郸学院自然科学研究课题15219,14207)
关键词
汽车悬架
车身加速度
PID控制
仿真
automobile suspension
body acceleration
PID control
simulation
