Title:
電源システム
Document Type and Number:
Japanese Patent JP7040235
Kind Code:
B2
Abstract:
To provide a power supply system capable of estimating the progress of high-rate degradation of a battery cell and also capable of reducing the burden of a control unit.SOLUTION: A power supply system includes a battery module 20 including a plurality of battery cells 2, a voltage measuring part 3 for measuring voltage of the individual of the battery cells 2, and a control unit 4 for controlling charge/discharge of the battery module 20. The control unit 4 includes a specification part 41 and an estimation part 42. The specification part 41 specifies, among the battery cells 2, a fastest degradation cell 2that is a battery cell 2 most susceptible to high-rate degradation, using a measured value of voltage of the individual of the battery cells 2 in charging/discharging the battery module 20. The estimation part 42 estimates the progress of the high-rate degradation in the fastest degradation cell 2.SELECTED DRAWING: Figure 1
Inventors:
Kenkazu Kusano
Koji Ohira
Koji Ohira
Application Number:
JP2018073284A
Publication Date:
March 23, 2022
Filing Date:
April 05, 2018
Export Citation:
Assignee:
株式会社デンソー
International Classes:
H01M10/48; G01R31/382; G01R31/385; G01R31/392; H02J7/00
Domestic Patent References:
| JP2010060408A | ||||
| JP2017112737A | ||||
| JP2017169367A | ||||
| JP2013168285A | ||||
| JP2017150975A |
Foreign References:
| US20100052617 | ||||
| WO2013002202A1 | ||||
| US20130314095 |
Attorney, Agent or Firm:
Patent Business Corporation Aichi International Patent Office
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