BATTERY PACK UNIT TESTING METHOD AND TESTING APPARATUS
First Claim
1. A battery pack unit testing method for a battery pack unit comprising:
- a battery pack including a plurality of cells electrically connected to each other; and
a duct assembly through which a coolant is supplied to the cells of the battery pack, the method comprising;
a) charging the battery pack under predetermined conditions while supplying the coolant to the duct assembly;
b) acquiring temperature information on the cells at predetermined time intervals during step a); and
c) determining whether a difference between the highest and lowest ones of temperatures of the cells measured at substantially the same time is equal to or greater than a predetermined reference temperature difference on the basis of the temperature information acquired in step b).
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Accused Products
Abstract
An inventive testing method is intended for testing a battery pack unit including: a battery pack including a plurality of cells electrically connected to each other; and a duct assembly through which a coolant is supplied to the cells of the battery pack. The testing method includes: a) charging the battery pack under predetermined conditions while supplying the coolant to the duct assembly; b) acquiring temperature information on the cells at predetermined time intervals during step a); and c) determining whether a difference between the highest and lowest ones of the temperatures of the cells measured at substantially the same time is equal to or greater than a predetermined reference temperature difference on the basis of the temperature information acquired in step b).
11 Citations
9 Claims
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1. A battery pack unit testing method for a battery pack unit comprising:
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a battery pack including a plurality of cells electrically connected to each other; and a duct assembly through which a coolant is supplied to the cells of the battery pack, the method comprising; a) charging the battery pack under predetermined conditions while supplying the coolant to the duct assembly; b) acquiring temperature information on the cells at predetermined time intervals during step a); and c) determining whether a difference between the highest and lowest ones of temperatures of the cells measured at substantially the same time is equal to or greater than a predetermined reference temperature difference on the basis of the temperature information acquired in step b). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A battery pack unit testing apparatus for a battery pack unit comprising:
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a battery pack including a plurality of cells electrically connected to each other; and a duct assembly through which a coolant is supplied to the cells of the battery pack, the apparatus comprising; thermometers each attached to an associated one of the cells of the battery pack; a battery charger connected to the battery pack; and an abnormality detector, the abnormality detector including; a first processor to cause the battery charger to charge the battery pack under predetermined conditions, while supplying the coolant to the duct assembly; a second processor to acquire temperature information on the cells from the thermometers at predetermined time intervals during the charging and coolant supplying process performed by the first processor; and a third processor to determine whether a difference between the highest and lowest ones of temperatures of the cells measured at substantially the same time is equal to or greater than a predetermined reference temperature difference on the basis of the temperature information acquired by the second processor.
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Specification