摘要
以工程车辆半主动悬架为研究对象,建立半主动悬架系统模型。为提高车辆行驶平顺性和操作稳定性,基于比例积分微分(proportional-integral-derivative,PID)和增量式算法原理提出了用于工程车辆半主动悬架的增量式PID控制方法。以车身垂向加速度作为系统控制目标,对不同路面等级和行驶速度下的工程车辆半主动悬架系统进行了时域和频域仿真分析。结果表明:与PID控制悬架系统相比,运用增量式PID控制悬架系统的车身垂向加速度均方根值降低了82.4%;在低频范围内,增量式PID功率谱密度降低了61.1%,悬架性能得以提升,改善了车辆行驶平顺性和操作稳定性。
Taking the semi-active suspension of the engineering vehicle as the research object,the model of semi-active suspension system of the vehicle was built.In order to improve the riding comfort and operational stability of the vehicle,incremental proportional-integral-derivative(PID)control method for semi-active suspension of engineering vehicles based on PID and incremental algorithm principle was designed.Taking the vertical acceleration of the vehicle as the system control target,the time domain and frequency domain simulation analysis on the semi-active suspension system of the engineering vehicle under different road grades and driving speeds were carried out.The simulation results illustrate that,compared with the PID control algorithm,the root mean square of vertical acceleration can reduce by 82.4%by using the incremental PID control algorithm;in the low frequency domain,incremental PID power spectral density was reduced by 61.1%,which shows that the performance of the semi-active suspension is improved with better riding comfort and operational stability.
作者
董炳辰
孙建民
姚德臣
刘祥
张帅
DONG Bingchen;SUN Jianmin;YAO Dechen;LIU Xiang;ZHANG Shuai(School of Mechanical-Electronic and Vehicle Engineering, Beijing University of Civil Engineering and Architecture, Beijing 100044, China;Beijing Key Laboratory of Performance Guarantee on Urban Rail Transit Vehicles, Beijing 100044, China)
出处
《中国科技论文》
CAS
北大核心
2020年第10期1203-1208,共6页
China Sciencepaper
基金
国家自然科学基金资助项目(51605023)
北京市教委科研计划项目(SQKM201810016015)。
关键词
工程车辆
半主动悬架系统
增量式PID控制算法
车身垂向加速度
仿真
engineering vehicles
semi-active suspension system
incremental PID control algorithm
body vertical acceleration
simulation
