Title:
二次電池の内部抵抗検出装置および劣化判定装置ならびに内部抵抗検出方法および劣化判定方法
Document Type and Number:
Japanese Patent JP4043978
Kind Code:
B2
Abstract:
To exactly calculate internal resistance value of a secondary battery by considering a memory effect.
A battery unit 2400 comprises a battery pack 2410 consisting of a plurality of battery modules 2412, a current detection circuit 2414 for detecting the current value of the battery module 2412 during charging, a voltage detection circuit 2416 for detecting the voltage value of every battery module 2412 during current measurement, and a battery ECU 2422 connected with the current detection circuit 2414 and the voltage detection circuit 2416 and calculating the internal resistance value of every battery module 2412 based on the detected current value and voltage value.
COPYRIGHT: (C)2004,JPO&NCIPI
Inventors:
Shoji Sakai
Teruhiko Sakakibara
Toshiro Okamoto
Teruhiko Sakakibara
Toshiro Okamoto
Application Number:
JP2003065206A
Publication Date:
February 06, 2008
Filing Date:
March 11, 2003
Export Citation:
Assignee:
Japan Auto Parts Research Institute, Inc.
TOYOTA JIDOSHA KABUSHIKI KAISHA
TOYOTA JIDOSHA KABUSHIKI KAISHA
International Classes:
G01R31/36; B60L11/18; H01M10/48
Domestic Patent References:
| JP2002252901A | ||||
| JP7169510A | ||||
| JP2002075461A | ||||
| JP2002042895A | ||||
| JP11332016A | ||||
| JP10048301A | ||||
| JP60225078A | ||||
| JP8088027A |
Attorney, Agent or Firm:
Kuro Fukami
Toshio Morita
Takao Matsuyama
Tadashi Muto
Toshio Morita
Takao Matsuyama
Tadashi Muto