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

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

Content Provider	MDPI
Author	Chien, Pai-Chen Chen, Chih-Keng
Copyright Year	2021
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.
Starting Page	2885
e-ISSN	20799292
DOI	10.3390/electronics10222885
Journal	Electronics
Issue Number	22
Volume Number	10
Language	English
Publisher	MDPI
Publisher Date	2021-11-22
Access Restriction	Open
Subject Keyword	Electronics Chassis Control Torque Vectoring Vehicle Dynamics Secondary Effect Rear Wheel Steering Control Allocation
Content Type	Text
Resource Type	Article

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