Title:
The shunt evaluation method of a rechargeable battery
Document Type and Number:
Japanese Patent JP6011865
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a secondary battery short-circuit inspection method which can properly detect short-circuit of a secondary battery mounted on a vehicle.SOLUTION: A secondary battery short-circuit inspection method includes: a step S10 of acquiring an average discharge current value A of a secondary battery 21, a cumulative discharge current value B, a discharge time C, and a vehicle travel distance D, for one travel of a vehicle; a step S20 of dividing the cumulative discharge current value B by the discharge time to calculate a decision index F; a step of calculating determination values J11, J12... for each of past accumulated data L11, L12... of a reference matrix M1; and a step S100 of determining short circuit of the secondary battery 21 on the basis of a result of comparing the decision index F calculated in the current inspection with a determination value J32 corresponding to the average discharge current value A and the travel distance D obtained in the current inspection.
Inventors:
Hashimoto Nobunobu
Application Number:
JP2013031467A
Publication Date:
October 19, 2016
Filing Date:
February 20, 2013
Export Citation:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA
International Classes:
G01R31/36; H01M10/48; H02J7/00
Domestic Patent References:
| JP201169775A | ||||
| JP2001116811A |
Attorney, Agent or Firm:
Makoto Abe
Michiko Oi
Hiroaki Yamane
Juichiro Yano
Hideaki Masatsu
Michiko Oi
Hiroaki Yamane
Juichiro Yano
Hideaki Masatsu