Method and apparatus for charging a high voltage battery of an automotive vehicle having a high voltage battery and a low voltage battery
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United States of America Patent
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Sep 14, 2004
Grant Date -
Aug 26, 2004
app pub date -
Feb 20, 2003
filing date -
Feb 20, 2003
priority date (Note) -
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Abstract
An electrical system for an automotive vehicle includes a low voltage battery having a low voltage, a high voltage battery having a high voltage, and a DC-to-DC converter coupled to the low voltage battery and the high voltage battery. A controller controls a conversion of the low voltage to a high voltage through the DC-to-DC converter and controls the charging of the high voltage battery with the high voltage. The controller monitors a state of charge of the high voltage battery, compares the state of charge to a predetermined state of charge and generates an indicator when the state of charge reaches the predetermined state of charge.
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