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Mechanical and electrical behaviour of an electric vehicles drive train due to the choice of the control-system

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2 Author(s)
Dost, P. ; Power Syst. Technol. & Power Mechatron., Ruhr-Univ. Bochum, Bochum, Germany ; Sourkounis, C.

A future-orientated strategy for the use of energy within passenger cars is electrical energy. Due to this developpment there is a need of considering the conditioning of electrical energy to be used for electrical machines under conditions of an electric vehicle. Comparing a fixed step-size control-system with a space-vector based hysteresis-control (bang-bang-control), the high frequent influence to the whole power train is evaluated with a view to the electrical and mechanical subsystems. Furthermore the travelling comfort is a target of the study. As electrical drives for electric vehicles need to have a wide speed range and likewise be robust the chosen control processes are applied to a permanent magnetic synchronous machine (PMSM) [1]. This offers the opportunity of a gearless drive which by the way offers a big advantage in comparison to combustion engines. To connect the energy source to the PMSM there is an inverter which builds up three-phases and likewise a rectifier in the opposed direction with a set of IGBTs and integrated antiparallel diodes. The command signal is set by a torque demand as known in a traditional car with the help of an acceleration pedal. [2] [3] the mechanical part of the drive train is build by a double oscillator as it is close to reality.

Published in:

IECON 2011 - 37th Annual Conference on IEEE Industrial Electronics Society

Date of Conference:

7-10 Nov. 2011