SYSTEM AND METHOD FOR CHARGING A TRACTION BATTERY LIMITING THE CURRENT DRAW OF PARASITIC CAPACITANCES
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United States of America Patent
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Issued Date -
Aug 4, 2016
app pub date -
Sep 24, 2014
filing date -
Oct 1, 2013
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Abstract
A system charges a traction battery of an at least partially electric traction vehicle. The system includes an input filter connected to a power supply network. The filter includes a capacitance connected through a switch of the filter between at least one power supply phase connection or a neutral connection of the charging system, and a ground of the charging system. The system includes a controller for charging parasitic capacitances of the charging system without transferring energy from the power supply network to the battery while the power supply network is connected to the charging system. The system includes a time delay for closing the switch of the filter when a delay time frame higher than or equal to a predetermined time frame expires. The system also includes a charging activator for transferring energy between the power supply network and the battery, the switch of the filter being closed.
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