Coordinated Control Method for Lateral Stability and Differential Power-Assisted Steering of In-Wheel Motor Drive Electric Vehicles

In order to improve the lateral stability and handling performance of in-wheel motor drive electric vehicles, a coordinated control method considering lateral stability and differential power-assisted steering performance is proposed. A vehicle dynamics model with two degrees of freedom is establish...

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Main Authors: Xinlong Cheng, Te Chen, Junmin Li, Junchang Wang
Format: Article
Language:English
Published: MDPI AG 2023-07-01
Series:World Electric Vehicle Journal
Subjects:
Online Access:https://www.mdpi.com/2032-6653/14/8/200
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author Xinlong Cheng
Te Chen
Junmin Li
Junchang Wang
author_facet Xinlong Cheng
Te Chen
Junmin Li
Junchang Wang
author_sort Xinlong Cheng
collection DOAJ
description In order to improve the lateral stability and handling performance of in-wheel motor drive electric vehicles, a coordinated control method considering lateral stability and differential power-assisted steering performance is proposed. A vehicle dynamics model with two degrees of freedom is established, in which the influence of system disturbance is considered. At the same time, the effect of differential torque on vehicle power-assisted steering control was analyzed, and a differential power-assisted steering control method of vehicle was designed based on referenced steering wheel torque. In response to the coupling relationship and dynamic game problem between the lateral stability control system and the differential power-assisted steering control system, a coordinated control system with a vehicle lateral stability module and a differential power-assisted steering module was designed based on the Nash equilibrium game theory, achieving comprehensive optimization of multi-objective performance. Corresponding simulation tests were conducted in the co-simulation vehicle model, and the results show that the proposed coordinated control method can achieve the differential power-assisted steering control function of vehicle while ensuring lateral stability.
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spelling doaj.art-5ebc2d04bb7b452db43fa56e5cfda1822023-11-19T03:24:07ZengMDPI AGWorld Electric Vehicle Journal2032-66532023-07-0114820010.3390/wevj14080200Coordinated Control Method for Lateral Stability and Differential Power-Assisted Steering of In-Wheel Motor Drive Electric VehiclesXinlong Cheng0Te Chen1Junmin Li2Junchang Wang3School of Automotive, Anyang Vocational and Technical College, Anyang 455000, ChinaAutomotive Engineering Research Institute, Jiangsu University, Zhenjiang 212013, ChinaSchool of Mechanical Engineering, Anyang Institute of Technology, Anyang 455000, ChinaSchool of Mechanical Engineering, Anyang Institute of Technology, Anyang 455000, ChinaIn order to improve the lateral stability and handling performance of in-wheel motor drive electric vehicles, a coordinated control method considering lateral stability and differential power-assisted steering performance is proposed. A vehicle dynamics model with two degrees of freedom is established, in which the influence of system disturbance is considered. At the same time, the effect of differential torque on vehicle power-assisted steering control was analyzed, and a differential power-assisted steering control method of vehicle was designed based on referenced steering wheel torque. In response to the coupling relationship and dynamic game problem between the lateral stability control system and the differential power-assisted steering control system, a coordinated control system with a vehicle lateral stability module and a differential power-assisted steering module was designed based on the Nash equilibrium game theory, achieving comprehensive optimization of multi-objective performance. Corresponding simulation tests were conducted in the co-simulation vehicle model, and the results show that the proposed coordinated control method can achieve the differential power-assisted steering control function of vehicle while ensuring lateral stability.https://www.mdpi.com/2032-6653/14/8/200electric vehiclelateral stabilitypower-assisted steeringcoordinated control
spellingShingle Xinlong Cheng
Te Chen
Junmin Li
Junchang Wang
Coordinated Control Method for Lateral Stability and Differential Power-Assisted Steering of In-Wheel Motor Drive Electric Vehicles
World Electric Vehicle Journal
electric vehicle
lateral stability
power-assisted steering
coordinated control
title Coordinated Control Method for Lateral Stability and Differential Power-Assisted Steering of In-Wheel Motor Drive Electric Vehicles
title_full Coordinated Control Method for Lateral Stability and Differential Power-Assisted Steering of In-Wheel Motor Drive Electric Vehicles
title_fullStr Coordinated Control Method for Lateral Stability and Differential Power-Assisted Steering of In-Wheel Motor Drive Electric Vehicles
title_full_unstemmed Coordinated Control Method for Lateral Stability and Differential Power-Assisted Steering of In-Wheel Motor Drive Electric Vehicles
title_short Coordinated Control Method for Lateral Stability and Differential Power-Assisted Steering of In-Wheel Motor Drive Electric Vehicles
title_sort coordinated control method for lateral stability and differential power assisted steering of in wheel motor drive electric vehicles
topic electric vehicle
lateral stability
power-assisted steering
coordinated control
url https://www.mdpi.com/2032-6653/14/8/200
work_keys_str_mv AT xinlongcheng coordinatedcontrolmethodforlateralstabilityanddifferentialpowerassistedsteeringofinwheelmotordriveelectricvehicles
AT techen coordinatedcontrolmethodforlateralstabilityanddifferentialpowerassistedsteeringofinwheelmotordriveelectricvehicles
AT junminli coordinatedcontrolmethodforlateralstabilityanddifferentialpowerassistedsteeringofinwheelmotordriveelectricvehicles
AT junchangwang coordinatedcontrolmethodforlateralstabilityanddifferentialpowerassistedsteeringofinwheelmotordriveelectricvehicles