Position detection system and position detection method
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United States of America
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Dec 28, 2021
Grant Date -
Jun 11, 2020
app pub date -
Dec 5, 2019
filing date -
Dec 5, 2019
priority date (Note) -
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status (Latency Note)
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Abstract
A position detection system is applicable to a wireless power transfer system in which power is wirelessly transmitted from a power transmission unit disposed on a parking space to a power reception unit disposed on a vehicle. The position detection system includes one LF transmitting antenna in the power transmission unit, a plurality of LF receiving antennas in the power reception unit, and a vehicle ECU (control system). When the vehicle is moving, the vehicle ECU uses an LF mode to detect the position relation between the power transmission unit and the power reception unit. When the vehicle is stopped, the vehicle ECU uses an LPE mode to detect the position relation between the power transmission unit and the power reception unit.
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