Battery management system and method for agricultural electric vehicle
AssigneeLs Mtron Ltd.
InventorsSi Hong ROH, Dong Woo KANG, Dong Wook KIM, Myong Jin RYU, Chan PARK
Life of this patent
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Abstract
The present disclosure is directed to battery management technology for agricultural electric vehicles. A battery management system for an agricultural electric vehicle according to the present disclosure may identify the voltage of a low-voltage battery upon charging a high-voltage battery, and may activate or deactivate a voltage converter based on the identified voltage value, thereby increasing the charging speed of the high-voltage battery.
Claims8
A battery management system for an agricultural electric vehicle, the battery management system comprising:
- a high-voltage battery configured to provide high-voltage power and be charged with external power;
- a low-voltage battery configured to provide low-voltage power at a lower voltage than that of the high-voltage battery and be charged with the power of the high-voltage battery or external power;
- a voltage converter configured to convert the power of the high-voltage battery into low-voltage power and supply this low-voltage power to the low-voltage battery and low-voltage electrical loads;
- and
- a controller configured to, when charging of the high-voltage battery starts, check a voltage of the low-voltage battery and control the voltage converter to be activated or deactivated.
A battery management method for an agricultural electric vehicle, the battery management method comprising:
- a first checking step of checking whether a voltage of a low-voltage battery is equal to or higher than a first set value when charging of a high-voltage battery starts;
- a deactivation step of deactivating a voltage converter when the voltage of the low-voltage battery is determined to be equal to or higher than the first set value in the first checking step;
- a second checking step of, after the deactivation step, checking whether a voltage of the low-voltage battery is lower than a second set value;
- and
- an activation step of activating the voltage converter when the voltage of the low-voltage battery is determined to be lower than the first set value in the first checking step or when the voltage of the low-voltage battery is determined to be lower than the second set value in the second checking step;
- wherein the first checking step, the deactivation step, the second checking step, and the activation step are performed in charging mode in which the high-voltage battery is charged;
- and
- wherein the second set value is a voltage value lower than the first set value.
Dependencies are inferred from the claim text.