US 12,294,061 B2
Battery resistance measurement device, vehicle and battery resistance measurement method
Hiroshi Yoshida, Anjo (JP); and Yuto Baba, Nisshin (JP)
Assigned to TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed by TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed on Feb. 17, 2022, as Appl. No. 17/674,493.
Claims priority of application No. 2021-040348 (JP), filed on Mar. 12, 2021.
Prior Publication US 2022/0294029 A1, Sep. 15, 2022
Int. Cl. H01M 10/42 (2006.01); B60L 1/00 (2006.01); B60L 53/00 (2019.01); B60L 58/10 (2019.01); G01R 31/389 (2019.01); H02J 7/00 (2006.01); H01M 10/0525 (2010.01)
CPC H01M 10/425 (2013.01) [B60L 1/003 (2013.01); B60L 53/00 (2019.02); B60L 58/10 (2019.02); G01R 31/389 (2019.01); H02J 7/0048 (2020.01); H01M 10/0525 (2013.01); H01M 2010/4271 (2013.01); H01M 2220/20 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A vehicle comprising:
a target battery;
a battery resistance measurement device that measures an electrical resistance of a battery, the battery resistance measurement device comprising:
a determination unit that determines, based on whether a predetermined condition is satisfied, whether the target battery has switched from a charged state to a discharged state in which while the target battery receives supplied electric power the target battery outputs electric power larger than the supplied electric power;
a measurement unit that starts measuring the electrical resistance of the target battery at a time when the determination unit determines that the target battery is switched from the charged state to the discharged state
an auxiliary device that receives electric power from the target battery; and
a control device that switches a plurality of types of control modes,
the plurality of types of control modes including:
a prohibition mode which prohibits driving the auxiliary device with electric power output from the target battery when the target battery receives electric power from outside the vehicle; and
a permission mode which permits driving the auxiliary device with electric power output from the target battery when the target battery receives electric power from outside the vehicle,
the predetermined condition including:
a condition that the control device is executing the permission mode; and
a condition that the auxiliary device is driven after charging the target battery with electric power supplied from outside the vehicle is started.