Journal ArticleDOI
Optimal Wheel Torque Distribution for a Four-Wheel-Drive Fully Electric Vehicle
TLDR
In this paper, a control allocation algorithm for the determination of the wheel torque distribution was proposed for a four-wheel-driven fully electric vehicle with individually controlled motors, and the results in terms of wheel torque and tire slip distributions among the four wheels, and of input power to the electric drivetrains were presented and discussed in detail.Abstract:
Vehicle handling in steady-state and transient conditions can be significantly enhanced with the continuous modulation of the driving and braking torques of each wheel via dedicated torque-vectoring controllers. For fully electric vehicles with multiple electric motor drives, the enhancements can be achieved through a control allocation algorithm for the determination of the wheel torque distribution. This article analyzes alternative cost functions developed for the allocation of the wheel torques for a four-wheel-driven fully electric vehicle with individually controlled motors. Results in terms of wheel torque and tire slip distributions among the four wheels, and of input power to the electric drivetrains as functions of lateral acceleration are presented and discussed in detail. The cost functions based on minimizing tire slip allow better control performance than the functions based on energy efficiency for the case-study vehicle.read more
Citations
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Journal ArticleDOI
Wheel Torque Distribution Criteria for Electric Vehicles With Torque-Vectoring Differentials
TL;DR: Assessment of the performance of alternative objective functions for the optimal wheel torque distribution of a four-wheel-drive (4WD) fully electric vehicle shows that objective functions based on the minimum tire slip criterion provide better control performance than functionsbased on energy efficiency.
Journal ArticleDOI
Comparison of Feedback Control Techniques for Torque-Vectoring Control of Fully Electric Vehicles
TL;DR: A comparison between different torque-vectoring control structures for the yaw moment control of FEVs shows that the PID-based controllers achieve very good vehicle performance in steady-state and transient conditions, whereas the controllers based on the sliding-mode approach demonstrate a high level of robustness against variations in the vehicle parameters.
Journal ArticleDOI
Integral Sliding Mode for the Torque-Vectoring Control of Fully Electric Vehicles: Theoretical Design and Experimental Assessment
Tommaso Goggia,Aldo Sorniotti,Leonardo De Novellis,Antonella Ferrara,Patrick Gruber,Johan Theunissen,Dirk Steenbeke,Bernhard Knauder,Josef Zehetner +8 more
TL;DR: An integral sliding mode (ISM) formulation for the torque-vectoring (TV) control of a fully electric vehicle is presented and shows a significant enhancement of the controlled vehicle performance during all maneuvers.
Journal ArticleDOI
Wheel Torque Distribution of Four-Wheel-Drive Electric Vehicles Based on Multi-Objective Optimization
Cheng Lin,Zhifeng Xu +1 more
TL;DR: In this paper, a wheel torque distribution strategy is developed based on multi-objective optimization to improve vehicle maneuverability and reduce energy consumption for four-wheel-drive electric vehicles.
Journal ArticleDOI
An Adaptive Backstepping Sliding Mode Controller to Improve Vehicle Maneuverability and Stability via Torque Vectoring Control
TL;DR: An adaptive second-order sliding mode (ASOSM) controller based on the backstepping method is proposed by adding the high-frequency switching term to the first derivative of the sliding mode variable, which implies that the actual control can be acquired after an integration process.
References
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Journal ArticleDOI
Improvement of vehicle maneuverability by direct yaw moment control.
TL;DR: In this paper, a new method of analysis was developed for determining yaw moment and side force of the vehicle with a parameter of the side slip angle at the center of gravity when its center-of-gravity point was fixed.
Journal ArticleDOI
The development of vehicle stability control at Ford
TL;DR: In this article, the authors address realistic subjects encountered in the challenge of achieving technology improvement in a vehicle stability control system, including driver intent recognition, vehicle status measurement and estimation, control target generation, system actuation efficiency and smoothness, road bank angle detection, system development and evaluation, and fault detection.
Journal ArticleDOI
Stabilization of Automotive Vehicles Using Active Steering and Adaptive Brake Control Allocation
TL;DR: The simulation cases show that the yaw control allocation strategy stabilizes the vehicle in extreme maneuvers where the non linear vehicle yaw dynamics otherwise (without active braking or active steering) becomes unstable in the sense of over- or under steering.
Journal ArticleDOI
Driving Control Algorithm for Maneuverability, Lateral Stability, and Rollover Prevention of 4WD Electric Vehicles With Independently Driven Front and Rear Wheels
Juyong Kang,Jinho Yoo,Kyongsu Yi +2 more
TL;DR: It has been shown from simulation studies that vehicle maneuverability, lateral stability, and rollover mitigation performance can be significantly improved by the proposed driving controller.