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US 2016/0105052 A1Published application
Method and apparatus for controlling low-voltage battery charging
AssigneeHyundai Motor Company
InventorsKyu Il LEE, Boung Ho MIN, Sung Gone YOON
Life of this patent
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Abstract
A method for controlling low-voltage battery charging may include determining a state-of-charge (SOC) of a low-voltage battery based on a voltage of the low-voltage battery. A base charging voltage is set according to the SOC of the low-voltage battery. A charging voltage of the low-voltage battery is set based on the base charging voltage, a vehicle operation mode, and a SOC of a high-voltage battery.
Claims12
A method for controlling low-voltage battery charging, comprising steps of:
- determining a state-of-charge (SOC) of a low-voltage battery based on a voltage of the low-voltage battery;
- setting a base charging voltage according to the SOC of the low-voltage battery;
- and
- setting a charging voltage of the low-voltage battery based on the base charging voltage, a vehicle operation mode, and a SOC of a high-voltage battery.
1 more element
A apparatus for controlling low-voltage battery charging, comprising:
- a fuel cell stack for supplying a power to a vehicle driving system;
- a high-voltage direct current converter receiving the power from the fuel cell stack;
- a high-voltage battery receiving the voltage which is stepped down by the high-voltage direct current converter;
- a low-voltage direct current converter, which is connected to a high-voltage bus terminal in between the fuel cell stack and the high-voltage direct current converter, for converting the voltage;
- a low-voltage battery charged with the low voltage converted by the low-voltage direct current converter;
- and
- a controller configured to determine a SOC of a low-voltage battery based on the voltage of the low-voltage battery, to set a base charging voltage according to the SOC of the low-voltage battery, and to set a charging voltage of the low-voltage battery based on the base charging voltage, a vehicle operation mode, and a SOC of the high-voltage battery.
4 more elements
Dependencies are inferred from the claim text.