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Position detection method using induced voltage for battery charge on autonomous electric power supply system for vehicles

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2 Author(s)
Hata, T. ; Dept. of Precision Mech., Chuo Univ., Tokyo, Japan ; Ohmae, T.

It is desirable that battery driven vehicles are charged in automatically with contactless and high-efficiency. The magnetic coupling that is one of the contactless charges is suitable. However, a precise positioning system of a power supply unit is required in this method. This paper proposes a relative position detection method between the power supply unit and the autonomous vehicle. Especially the position detection is obtained by utilizing the voltage induced for the battery charge. To use the induced voltage as a position detection signal, the relation between the position of cores and the induced voltage is theoretically obtained. Moreover, to confirm theoretical results, the induced voltage is measured with experiments. From experimental results, it was confirmed that the induced voltage is able to use as a feedback signal for the position control.

Published in:

Advanced Motion Control, 2004. AMC '04. The 8th IEEE International Workshop on

Date of Conference:

25-28 March 2004