Journal ArticleDOI
An optimal torque distribution control strategy for four-independent wheel drive electric vehicles
TLDR
In this article, an optimal torque distribution approach is proposed for electric vehicles equipped with four independent wheel motors to improve vehicle handling and stability performance by considering the interference among different performance indices: forces and moment errors at the centre of gravity of the vehicle, actuator control efforts and tyre workload usage.Abstract:
In this paper, an optimal torque distribution approach is proposed for electric vehicle equipped with four independent wheel motors to improve vehicle handling and stability performance. A novel objective function is formulated which works in a multifunctional way by considering the interference among different performance indices: forces and moment errors at the centre of gravity of the vehicle, actuator control efforts and tyre workload usage. To adapt different driving conditions, a weighting factors tuning scheme is designed to adjust the relative weight of each performance in the objective function. The effectiveness of the proposed optimal torque distribution is evaluated by simulations with CarSim and Matlab/Simulink. The simulation results under different driving scenarios indicate that the proposed control strategy can effectively improve the vehicle handling and stability even in slippery road conditions.read more
Citations
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Journal ArticleDOI
Improving Vehicle Handling Stability Based on Combined AFS and DYC System via Robust Takagi-Sugeno Fuzzy Control
TL;DR: A robust fuzzy control strategy for improving vehicle lateral stability and handling performance through integration of direct yaw moment control system (DYC) and active front steering is presented.
Journal ArticleDOI
A Fast and Parametric Torque Distribution Strategy for Four-Wheel-Drive Energy-Efficient Electric Vehicles
TL;DR: An analytical solution is provided for the case of equal drivetrains, under the experimentally confirmed hypothesis that the drivetrain power losses are strictly monotonically increasing with the torque demand.
Journal ArticleDOI
Energy-Efficient Torque-Vectoring Control of Electric Vehicles With Multiple Drivetrains
TL;DR: Based on a set of novel experimental results, this study demonstrates that further significant energy consumption reductions can be achieved through the appropriate tuning of the reference understeer characteristics.
Journal ArticleDOI
Driving Force Distribution and Control for EV With Four In-Wheel Motors: A Case Study of Acceleration on Split-Friction Surfaces
TL;DR: A global–local control scheme: the global controller coordinates wheel and vehicle motions to generate reference driving forces and the local controller further controls the generated force commands in a two degree-of-freedom control framework is proposed.
Journal ArticleDOI
Stability control of electric vehicles with in-wheel motors by considering tire slip energy
TL;DR: This paper compares the lateral stability and slip energy of the vehicle under lane change condition between four methods – without control, traditional axis distribution, tire workload usage and tire slip energy and demonstrates that the proposed controller presents an excellent control capability.
References
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Journal ArticleDOI
Future vehicle driven by electricity and Control-research on four-wheel-motored "UOT electric march II"
TL;DR: The UOT Electric March II as discussed by the authors is an experimental electric vehicle with four in-wheel motors, which is made for intensive study of advanced motion control of an electric vehicle (EV).
Journal ArticleDOI
Motion control in an electric vehicle with four independently driven in-wheel motors
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Journal ArticleDOI
Simultaneous Optimal Distribution of Lateral and Longitudinal Tire Forces for the Model Following Control
Ossama Mokhiamar,Masato Abe +1 more
TL;DR: In this article, the authors proposed an optimum tire force distribution method in order to optimize tire usage and find out how the tires should share longitudinal and lateral forces to achieve a target vehicle response under the assumption that all four wheels can be independently steered, driven, and braked.
Journal ArticleDOI
Vehicle dynamics integrated control for four-wheel-distributed steering and four-wheel-distributed traction/braking systems
TL;DR: In this article, a vehicle dynamics integrated control algorithm using an on-line non-linear optimization method is proposed for 4-wheel-distributed steering and 4wheeldistributed traction/braking systems.
Journal ArticleDOI
Vehicle dynamics control of four in-wheel motor drive electric vehicle using gain scheduling based on tyre cornering stiffness estimation
TL;DR: In this paper, a vehicle dynamics controller is composed of three modules, i.e. motion following control, control allocation and vehicle state estimation, aiming at improving vehicle stability under critical driving conditions.
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