Method and apparatus for charging a high voltage battery of an automotive vehicle having a high voltage battery and a low voltage battery
First Claim
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1. A method of charging a high voltage battery comprising:
- electrically coupling a first low voltage source to a low voltage battery;
converting the low voltage to a high voltage;
charging a high voltage battery with the high voltage;
monitoring a state of charge of the high voltage battery;
comparing the state of charge to a predetermined state of charge; and
generating an indicator when the state of charge reaches the predetermined state of charge.
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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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Citations
20 Claims
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1. A method of charging a high voltage battery comprising:
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electrically coupling a first low voltage source to a low voltage battery;
converting the low voltage to a high voltage;
charging a high voltage battery with the high voltage;
monitoring a state of charge of the high voltage battery;
comparing the state of charge to a predetermined state of charge; and
generating an indicator when the state of charge reaches the predetermined state of charge. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of charging a high voltage battery through a first low voltage battery generating a low voltage with a low voltage source electrically coupled to the low voltage battery comprising:
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converting the low voltage to a high voltage through a DC-to-DC converter;
charging a high voltage battery with the high voltage;
monitoring a state of charge of the battery;
comparing the state of charge to a predetermined state of charge;
generating a first indicator when the state of charge is below the predetermined state of charge; and
generating a second indicator when the state of charge reaches the predetermined state of charge. - View Dependent Claims (13, 14, 15)
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16. A system for an automotive vehicle comprising:
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a low voltage battery having a low voltage;
a high voltage battery having a high voltage;
a DC-to-DC converter coupled between the low voltage battery and the high voltage battery; and
a controller coupled to the high voltage battery, the low voltage battery and said controller controlling a conversion of the low voltage to a high voltage through the DC-to-DC converter and controlling charging of the high voltage battery with the high voltage, said controller monitoring a state of charge of the high voltage battery, comparing the state of charge to a predetermined state of charge, said controller generating an indicator when the state of charge reaches the predetermined state of charge. - View Dependent Claims (17, 18, 19, 20)
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Specification