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Electronic differential with sliding mode controller for a direct wheel drive electric vehicle

Gair, S. and Cruden, A.J. and Cruden, Andrew and McDonald, J. and Hredzak, B. (2004) Electronic differential with sliding mode controller for a direct wheel drive electric vehicle. In: IEEE International Conference on Mechatronics (ICM 2004), 2004-06-03 - 2004-06-05, Istanbul.

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Abstract

Traction drives used in electric vehicles can be divided into two categories, (i) single drive systems, and (ii) multi-drive systems. With multi-drive systems the motor controllers must additionally be configured to provide an electronic differential effect i.e. they must also perform a similar function as their mechanical differential counterpart. Thus the electronic differential must take account of the speed difference between the two wheels when cornering. This paper presents a design for an electronic differential utilising a sliding mode controller employing a 4-switch 3-phase inverter. This type of inverter is particularly suitable for this application as the supply batteries can be easily split into two separate battery strings. The system is evaluated on a test vehicle in which the rear wheels are directly driven by permanent magnet brushless motors. Results indicate that this arrangement can be successfully implemented into an electric vehicle drive train.

Item type: Conference or Workshop Item (Paper)
ID code: 39228
Keywords: electronic differential, sliding mode controller, direct wheel drive, electric vehicle, batteries, wheels, vehicle driving , traction motors , system testing , sliding mode control, inverters, electric vehicles , control systems , brushless motors , Electrical engineering. Electronics Nuclear engineering
Subjects: Technology > Electrical engineering. Electronics Nuclear engineering
Department: Faculty of Engineering > Electronic and Electrical Engineering
Related URLs:
    Depositing user: Pure Administrator
    Date Deposited: 18 Apr 2012 14:26
    Last modified: 17 Jul 2013 15:16
    URI: http://strathprints.strath.ac.uk/id/eprint/39228

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