Method and apparatus for charging multiple energy storage devices
AssigneeGeneral Electric Company
InventorsRuediger Soeren Kusch, Robert Dean King, Robert Louis Steigerwald
Life of this patent
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Abstract
An electric vehicle includes a controller configured to receive sensor feedback from a high voltage storage device and from a low voltage storage device, compare the sensor feedback to operating limits of the respective high and low voltage storage device, determine, based on the comparison a total charging current to the high voltage storage device and to the low voltage storage device and a power split factor of the total charging current to the high voltage device and to the low voltage device, and regulate the total power to the low voltage storage device and the high voltage storage device based on the determination.
Claims19
An apparatus comprising:
- a first energy storage device, a second energy storage device, a third energy storage device, and a charging source;
- a first DC/DC converter, a first switching device, and a second DC/DC converter coupled between the charging source and the second energy storage device;
- the first DC/DC converter, the first switching device, the second DC/DC converter, a third DC/DC converter, and a second switching device coupled between the charging source and the third energy storage device;
- the first DC/DC converter, the first switching device, the second DC/DC converter, the third DC/DC converter, the third switching device, and a fourth switching device coupled between the charging source and the first energy storage device;
- and
- a control system configured to operate at least one of the DC/DC converters and at least one of the switching devices to charge at least one of the energy storage devices from the charging source.
Dependencies are inferred from the claim text.