Automotive industries are growing interest towards electric and hybrid vehicles which offer many advantages and new layout possibilities. One of the most versatile configuration consists of four in-wheel electric motors, which allows to independently distribute driving and braking torques among the wheels (torque vectoring). In this way, yaw moments can be generated in order to increase vehicle handling and safety. In this paper, acontrol strategy is presented with the aim to control an electric vehicle equipped with in-wheel motors. The control system consist ofasteady-state control coupled with a transient contribution. The steady-state control aims to enhance vehicle handling, while the transient control increases lateral stability during limit manoeuvers. Performances of the control logic are evaluated by means of numerical simulations of open and closed loop manoeuvres. Robustness to friction coefficient changes is analysed.
A torque-vectoring control logic for IWM electric vehicles
SABBIONI, EDOARDO;VIGNATI, MICHELE;SIRONI, GABRIELE
2014-01-01
Abstract
Automotive industries are growing interest towards electric and hybrid vehicles which offer many advantages and new layout possibilities. One of the most versatile configuration consists of four in-wheel electric motors, which allows to independently distribute driving and braking torques among the wheels (torque vectoring). In this way, yaw moments can be generated in order to increase vehicle handling and safety. In this paper, acontrol strategy is presented with the aim to control an electric vehicle equipped with in-wheel motors. The control system consist ofasteady-state control coupled with a transient contribution. The steady-state control aims to enhance vehicle handling, while the transient control increases lateral stability during limit manoeuvers. Performances of the control logic are evaluated by means of numerical simulations of open and closed loop manoeuvres. Robustness to friction coefficient changes is analysed.File | Dimensione | Formato | |
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2014_AVEC_A torque-vectoring control logic for IWM electric vehicles.pdf
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