US 12,362,406 B2
Battery system
Shota Imai, Toyota (JP); Junichi Matsumoto, Toyota (JP); and Tomoaki Toshijima, Miyoshi (JP)
Assigned to TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed by TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed on May 18, 2022, as Appl. No. 17/663,870.
Claims priority of application No. 2021-097968 (JP), filed on Jun. 11, 2021.
Prior Publication US 2022/0399585 A1, Dec. 15, 2022
Int. Cl. H01M 10/48 (2006.01); H01M 10/30 (2006.01); H01M 10/44 (2006.01); G01K 7/22 (2006.01)
CPC H01M 10/486 (2013.01) [H01M 10/30 (2013.01); H01M 10/441 (2013.01); G01K 7/22 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A battery system comprising:
a battery module including a plurality of bipolar nickel-metal-hydride batteries;
a temperature sensor that detects a temperature of a first area in the battery module; and
a processor programmed to calculate an estimated temperature of a second area having a higher temperature than the first area in the battery module, by adding a temperature correction amount to a detected value of the temperature sensor,
wherein the processor is programmed to set the temperature correction amount according to a time differential value of the detected value, and set the temperature correction amount such that a rate of increase of the estimated temperature of the second area does not exceed a predetermined rate that is larger than zero.