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Vehicle direct yaw moment control system based on the improved linear quadratic regulator

Xianyi Xie (School of Vehicle and Energy, Yanshan University, Qinhuangdao, China)
Lisheng Jin (School of Vehicle and Energy, Yanshan University, Qinhuangdao, China)
Guo Baicang (School of Vehicle and Energy, Yanshan University, Qinhuangdao, China)
Jian Shi (School of Mechanical Engineering, Beijing Institute of Technology, Beijing, China)

Industrial Robot

ISSN: 0143-991x

Article publication date: 26 March 2021

Issue publication date: 3 August 2021

89

Abstract

Purpose

This study aims to propose an improved linear quadratic regulator (LQR) based on the adjusting weight coefficient, which is used to improve the performance of the vehicle direct yaw moment control (DYC) system.

Design/methodology/approach

After analyzing the responses of the side-slip angle and the yaw rate of the vehicle when driving under different road adhesion coefficients, the genetic algorithm and fuzzy logic theory were applied to design the parameter regulator for an improved LQR. This parameter regulator works according to the changes in the road adhesion coefficient between the tires and the road. Hardware-in-the-loop (HiL) tests with double-lane changes under low and high road surface adhesion coefficients were carried out.

Findings

The HiL test results demonstrate the proposed controllers’ effectiveness and reasonableness and satisfy the real-time requirement. The effectiveness of the proposed controller was also proven using the vehicle-handling stability objective evaluation method.

Originality/value

The objective evaluation results reveal better performance using the improved LQR DYC controller than a front wheel steering vehicle, especially in reducing driver fatigue, improving vehicle-handling stability and enhancing driving safety.

Keywords

Acknowledgements

This work is supported by the National Nature Science Foundation of China (Nos. 52072333 and U19A2069), National Key Research and Development Program of China (2018YFB1600501), Key Research and Development Program of Hebei Province (20310801D) and the Natural Science Foundation of Hebei Province (E2020203092).

Citation

Xie, X., Jin, L., Baicang, G. and Shi, J. (2021), "Vehicle direct yaw moment control system based on the improved linear quadratic regulator", Industrial Robot, Vol. 48 No. 3, pp. 378-387. https://doi.org/10.1108/IR-08-2020-0168

Publisher

:

Emerald Publishing Limited

Copyright © 2021, Emerald Publishing Limited

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