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On the energy efficiency of electric vehicles with multiple motors

de Filippis, G, Lenzo, B, Sorniotti, Aldo, Gruber, Patrick, Sannen, K and De Smet, J (2016) On the energy efficiency of electric vehicles with multiple motors In: IEEE VPPC2016., 2016-10-17 - 2016-10-20, Hangzhou, China.

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Electric Vehicles (EVs) with multiple motors permit to design the steady-state cornering response by imposing reference understeer characteristics according to expected vehicle handling quality targets. To this aim a direct yaw moment is generated by assigning different torque demands to the left and right vehicle sides. The reference understeer characteristic has an impact on the drivetrain input power as well. In parallel, a Control Allocation (CA) strategy can be employed to achieve an energy-efficient wheel torque distribution generating the reference yaw moment and wheel torque. To the knowledge of the authors, for the first time this paper experimentally compares and critically analyses the potential energy efficiency benefits achievable through the appropriate set-up of the reference understeer characteristics and wheel torque CA. Interestingly, the experiments on a four wheel-drive EV demonstrator show that higher energy savings can be obtained through the appropriate tuning of the reference cornering response rather than with an energy efficient CA.

Item Type: Conference or Workshop Item (Conference Paper)
Subjects : Mechanical Engineering Science
Divisions : Faculty of Engineering and Physical Sciences > Mechanical Engineering Sciences
Authors :
de Filippis, G
Lenzo, B
Sannen, K
De Smet, J
Date : 22 December 2016
DOI : 10.1109/VPPC.2016.7791737
Copyright Disclaimer : © 2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Contributors :
Uncontrolled Keywords : —torque-vectoring; control allocation; cornering; energy consumption; understeer characteristic
Related URLs :
Depositing User : Symplectic Elements
Date Deposited : 28 Jul 2016 08:59
Last Modified : 16 Jan 2019 17:06

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