Interlock Mechanism for a Multiple Battery Pack
First Claim
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1. A method of operation in a battery system having multiple battery packs, the method comprising:
- decoupling an output of a first battery pack from a first load terminal;
reducing a voltage between an output of a second battery pack and the first load terminal prior to coupling the output of the second battery pack to the first load terminal; and
coupling the output of the second battery pack to the first load terminal in response to determining that the voltage has been reduced below a predetermined threshold.
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Abstract
A method for operating a battery system having multiple battery packs. The method includes decoupling the output of a discharged battery pack from the vehicle load, reducing the voltage between an output of a charged battery pack and the vehicle load prior to coupling the output of the charged battery pack to the vehicle load.
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Citations
21 Claims
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1. A method of operation in a battery system having multiple battery packs, the method comprising:
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decoupling an output of a first battery pack from a first load terminal; reducing a voltage between an output of a second battery pack and the first load terminal prior to coupling the output of the second battery pack to the first load terminal; and coupling the output of the second battery pack to the first load terminal in response to determining that the voltage has been reduced below a predetermined threshold. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A battery management system comprising:
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a first switching element to decouple an output of a first battery pack from a first load terminal; a pre-charging circuit to reduce a voltage between an output of a second battery pack and the first load terminal prior to coupling the output of the second battery pack to the first load terminal; and a second switching element to couple the output of the second battery pack to the first load terminal in response to determining that the voltage has been reduced to a level below a predetermined threshold. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. An apparatus comprising:
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means for decoupling an output of a first battery pack from a first load terminal; means for reducing a voltage between an output of a second battery pack and the first load terminal prior to coupling the output of the second battery pack to the first load terminal; and means for coupling the output of the second battery pack to the first load terminal in response to determining that the voltage has been reduced below a predetermined threshold.
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Specification