Integrated Chassis Control and Control Allocation for All Wheel Drive Electric Cars with Rear Wheel Steering

This study investigates a control strategy for torque vectoring (TV) and active rear wheel steering (RWS) using feedforward and feedback control schemes for different circumstances. A comprehensive vehicle and combined slip tire model are used to determine the secondary effect and to generate desire...

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Main Authors: Pai-Chen Chien, Chih-Keng Chen
Format: Article
Language:English
Published: MDPI AG 2021-11-01
Series:Electronics
Subjects:
Online Access:https://www.mdpi.com/2079-9292/10/22/2885
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author Pai-Chen Chien
Chih-Keng Chen
author_facet Pai-Chen Chien
Chih-Keng Chen
author_sort Pai-Chen Chien
collection DOAJ
description This study investigates a control strategy for torque vectoring (TV) and active rear wheel steering (RWS) using feedforward and feedback control schemes for different circumstances. A comprehensive vehicle and combined slip tire model are used to determine the secondary effect and to generate desired yaw acceleration and side slip angle rate. A model-based feedforward controller is designed to improve handling but not to track an ideal response. A feedback controller based on close loop observation is used to ensure its cornering stability. The fusion of two controllers is used to stabilize a vehicle’s lateral motion. To increase lateral performance, an optimization-based control allocation distributes the wheel torques according to the remaining tire force potential. The simulation results show that a vehicle with the proposed controller exhibits more responsive lateral dynamic behavior and greater maximum lateral acceleration. The cornering safety is also demonstrated using a standard stability test. The driving performance and stability are improved simultaneously by the proposed control strategy and the optimal control allocation scheme.
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spelling doaj.art-d363a58eebe64d5aac787eaca99752842023-11-22T23:08:31ZengMDPI AGElectronics2079-92922021-11-011022288510.3390/electronics10222885Integrated Chassis Control and Control Allocation for All Wheel Drive Electric Cars with Rear Wheel SteeringPai-Chen Chien0Chih-Keng Chen1Department of Vehicle Engineering, National Taipei University of Technology, Taipei 10604, TaiwanDepartment of Vehicle Engineering, National Taipei University of Technology, Taipei 10604, TaiwanThis study investigates a control strategy for torque vectoring (TV) and active rear wheel steering (RWS) using feedforward and feedback control schemes for different circumstances. A comprehensive vehicle and combined slip tire model are used to determine the secondary effect and to generate desired yaw acceleration and side slip angle rate. A model-based feedforward controller is designed to improve handling but not to track an ideal response. A feedback controller based on close loop observation is used to ensure its cornering stability. The fusion of two controllers is used to stabilize a vehicle’s lateral motion. To increase lateral performance, an optimization-based control allocation distributes the wheel torques according to the remaining tire force potential. The simulation results show that a vehicle with the proposed controller exhibits more responsive lateral dynamic behavior and greater maximum lateral acceleration. The cornering safety is also demonstrated using a standard stability test. The driving performance and stability are improved simultaneously by the proposed control strategy and the optimal control allocation scheme.https://www.mdpi.com/2079-9292/10/22/2885chassis controltorque vectoringvehicle dynamicssecondary effectrear wheel steeringcontrol allocation
spellingShingle Pai-Chen Chien
Chih-Keng Chen
Integrated Chassis Control and Control Allocation for All Wheel Drive Electric Cars with Rear Wheel Steering
Electronics
chassis control
torque vectoring
vehicle dynamics
secondary effect
rear wheel steering
control allocation
title Integrated Chassis Control and Control Allocation for All Wheel Drive Electric Cars with Rear Wheel Steering
title_full Integrated Chassis Control and Control Allocation for All Wheel Drive Electric Cars with Rear Wheel Steering
title_fullStr Integrated Chassis Control and Control Allocation for All Wheel Drive Electric Cars with Rear Wheel Steering
title_full_unstemmed Integrated Chassis Control and Control Allocation for All Wheel Drive Electric Cars with Rear Wheel Steering
title_short Integrated Chassis Control and Control Allocation for All Wheel Drive Electric Cars with Rear Wheel Steering
title_sort integrated chassis control and control allocation for all wheel drive electric cars with rear wheel steering
topic chassis control
torque vectoring
vehicle dynamics
secondary effect
rear wheel steering
control allocation
url https://www.mdpi.com/2079-9292/10/22/2885
work_keys_str_mv AT paichenchien integratedchassiscontrolandcontrolallocationforallwheeldriveelectriccarswithrearwheelsteering
AT chihkengchen integratedchassiscontrolandcontrolallocationforallwheeldriveelectriccarswithrearwheelsteering