US 11,881,738 B2
Backup power supply system and vehicle
Yohsuke Mitani, Osaka (JP); and Takeshi Umeda, Osaka (JP)
Assigned to Panasonic Intellectual Property Management Co., Ltd., Osaka (JP)
Appl. No. 17/629,365
Filed by Panasonic Intellectual Property Management Co., Ltd., Osaka (JP)
PCT Filed Jul. 28, 2020, PCT No. PCT/JP2020/028775
§ 371(c)(1), (2) Date Jan. 21, 2022,
PCT Pub. No. WO2021/020357, PCT Pub. Date Feb. 4, 2021.
Claims priority of application No. 2019-139205 (JP), filed on Jul. 29, 2019.
Prior Publication US 2022/0255343 A1, Aug. 11, 2022
Int. Cl. H02J 9/06 (2006.01); H02J 7/00 (2006.01); H02J 9/00 (2006.01); B60R 16/033 (2006.01)
CPC H02J 9/06 (2013.01) [B60R 16/033 (2013.01); H02J 7/0031 (2013.01); H02J 7/0063 (2013.01); H02J 9/002 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A backup power-supply system comprising:
a detector configured to detect an abnormality of a power supply configured to supply electric power to a plurality of loads;
a power storage unit configured to supply electric power to the plurality of loads when the detector detects the abnormality of the power supply; and
a controller configured to
monitor a remaining electric energy remaining in the power storage unit, and
when the remaining electric energy of the power storage unit is smaller than a threshold electric energy, impose a limitation on the plurality of loads to which the power storage unit supplies the electric power.