US 12,394,993 B2
Protective apparatus, energy storage apparatus, and method for protecting energy storage device
Kazunori Dono, Kyoto (JP); and Atsushi Fukushima, Kyoto (JP)
Assigned to GS YUASA INTERNATIONAL LTD., Kyoto (JP)
Appl. No. 17/440,765
Filed by GS Yuasa International Ltd., Kyoto (JP)
PCT Filed Mar. 10, 2020, PCT No. PCT/JP2020/010233
§ 371(c)(1), (2) Date Sep. 18, 2021,
PCT Pub. No. WO2020/195780, PCT Pub. Date Oct. 1, 2020.
Claims priority of application No. 2019-054429 (JP), filed on Mar. 22, 2019.
Prior Publication US 2022/0200307 A1, Jun. 23, 2022
Int. Cl. H02J 7/00 (2006.01); H01M 10/42 (2006.01); H01M 10/48 (2006.01); H01M 50/574 (2021.01); H01M 50/583 (2021.01); H02H 3/02 (2006.01); H02H 3/08 (2006.01); H02H 3/093 (2006.01); H02H 7/18 (2006.01)
CPC H02J 7/00304 (2020.01) [H01M 10/48 (2013.01); H01M 50/574 (2021.01); H01M 50/583 (2021.01); H02H 3/021 (2013.01); H02H 3/08 (2013.01); H02H 3/093 (2013.01); H02H 7/18 (2013.01); H02J 7/0047 (2013.01); H01M 2010/4278 (2013.01)] 6 Claims
OG exemplary drawing
 
5. A method for protecting an energy storage device, the method comprising:
by a control part, calculating a cumulative value of times during which the current exceeds a current threshold, and executing current interruption processing of interrupting the current when the calculated cumulative value exceeds a cumulative threshold associated with the current threshold, and
calculating, as the cumulative value, times during which the current continuously exceeds the current threshold, and in a case where the current falls from a state of exceeding the current threshold, holding the cumulative value when a time during which the current is below the current threshold is equal to or shorter than a reset time.