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.
An optimal torque distribution control strategy for four-independent wheel drive electric vehicles
Vehicle System Dynamics ; 53 , 8 ; 1172-1189
03.08.2015
18 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
An optimal torque distribution control strategy for four-independent wheel drive electric vehicles
Online Contents | 2015
|An optimal distribution control strategy for four-independent wheel drive electric vehicles
Kraftfahrwesen | 2015
|Optimal Wheel Torque Distribution for a Four-Wheel-Drive Fully Electric Vehicle
British Library Conference Proceedings | 2013
|Optimal Wheel Torque Distribution for a Four-Wheel-Drive Fully Electric Vehicle
SAE Technical Papers | 2013
|Pure electric four-wheel drive torque distribution control method
Europäisches Patentamt | 2020
|