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Wheel Torque Distribution Criteria for Electric Vehicles With Torque-Vectoring Differentials

De Novellis, , Sorniotti, A and Gruber, P (2013) Wheel Torque Distribution Criteria for Electric Vehicles With Torque-Vectoring Differentials IEEE Transactions on Vehicular Technology.

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Abstract

The continuous, precise modulation of the driving and braking torque of each wheel is considered to be the ultimate goal for controlling the performance of a vehicle in steady-state and transient conditions. To do so, dedicated torque-vectoring controllers which allow optimal wheel torque distribution under all possible driving conditions have to be developed. Commonly, vehicle torque-vectoring controllers are based on a hierarchical approach, consisting of a high-level supervisory controller which evaluates a corrective yaw moment, and a low-level controller which defines the individual wheel torque reference values. The problem of the optimal individual wheel torque distribution for a particular driving condition can be solved through an optimization-based control allocation algorithm, which must rely on the appropriate selection of the objective function. With a newly developed off-line optimization procedure, this article assesses the performance of alternative objective functions for the optimal wheel torque distribution of a four-wheel-drive fully electric vehicle. Results show that objective functions based on minimum tire slip criterion provide better control performance than functions based on energy efficiency.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Mechanical Engineering Sciences
Authors :
AuthorsEmailORCID
De Novellis, UNSPECIFIEDUNSPECIFIED
Sorniotti, AUNSPECIFIEDUNSPECIFIED
Gruber, PUNSPECIFIEDUNSPECIFIED
Date : 6 November 2013
Identification Number : 10.1109/TVT.2013.2289371
Contributors :
ContributionNameEmailORCID
EditorBenbouzid, MUNSPECIFIEDUNSPECIFIED
Additional Information : © 2013 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.
Depositing User : Symplectic Elements
Date Deposited : 14 Jan 2014 14:54
Last Modified : 30 Sep 2014 01:33
URI: http://epubs.surrey.ac.uk/id/eprint/804853

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