Author:
Ji Guanggang,Zhang Lidong,Cai Mingda,Meng Xianke,Du Zhengyu,Ruan Jiuhong,Guan Shenhao,Liu Zhiwen
Abstract
AbstractThe vehicle suspension system is a complex system with multiple variables, nonlinearity and time-varying characteristics, and the traditional variable universe fuzzy PID control algorithm has the problems of over-reliance on expert experience and non-adaptive adjustment of the contracting-expanding factor parameters, which make it difficult to achieve a better control effect. In this paper, the system error e(t) and its change rate ec(t) are introduced into the contracting-expanding factor as dynamic parameters to realize the adaptive adjustment of the contracting-expanding factor parameters, and propose a variable universe fuzzy PID control based on dynamic adjustment functions (VUFP-DAF), which uses the real-time contracting-expanding factor to realize the adaptive adjustment of the fuzzy universe, so as to improve the ride comfort of vehicles. The research results show that the proposed VUFP-DAF has strong adaptability and can effectively improve the ride comfort and handling stability of vehicles under different speeds and road excitations, providing a certain technical basis for the development of the semi-active suspension system.
Funder
National Natural Science Foundation of China
Hebei Province Higher Education Science Research Project
Publisher
Springer Science and Business Media LLC
Cited by
1 articles.
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