Adaptive variable domain fuzzy PID control strategy based on road excitation for semi-active suspension using CDC shock absorber

被引:2
|
作者
Zhang, Boqiang [1 ]
Zhao, Haohan [2 ,3 ]
Zhang, Xun [1 ]
机构
[1] Henan Univ Technol, Sch Mech & Elect Engn, Zhengzhou, Peoples R China
[2] Yanshan Univ, Sch Mech Engn, Qinhuangdao, Peoples R China
[3] Yanshan Univ, Sch Mech Engn, 438 West Hebei Rd, Qinhuangdao 066004, Peoples R China
关键词
variable domain fuzzy PID control; semi-active suspension; optimization model; continuous damping control shock absorber; road excitation;
D O I
10.1177/10775463231152287
中图分类号
O42 [声学];
学科分类号
070206 ; 082403 ;
摘要
Electronic suspensions can take into account the ride comfort and safety of the vehicle, the continuous damping control (CDC) shock absorber is the core component of the electronic suspension. CDC shock absorber and electronic suspension have a promising future for application in automotive. This paper proposed an adaptive variable domain fuzzy PID control strategy for semi-active suspensive to effectively improve the vibration reduction effect of the automobile suspension system. By analyzing the dynamic performance of the semi-active suspension system coupled with the CDC shock absorber to get the control variables, we deduce the math function of semi-active suspension. In addition, the simulation model of the semi-active suspension based on the bench test of shock absorbers was established. Under the observation of performance indicators, though comparing the new control and other different control strategies, which can prove the effectiveness of the new method. From the simulation results, the shock absorber simulation model is correct and the performance of the proposed control strategies are effective than the traditional PID control and fuzzy control under the random road excitation. In particular, in the 120 km/h case by using VAC, the peak values of the suspension dynamic deflection, vehicle body acceleration, and car body dynamic load are reduced by 49.6%, 50%, and 50%. For a semi-active suspension using the CDC shock absorber, the proposed control method provides better ride comfort to passengers due to lower peak compared with the fuzzy control strategy and the PID control strategy, it can be used as an optimized design method for suspension.
引用
收藏
页码:860 / 875
页数:16
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