Title:
CONTROL DEVICE OF SECONDARY BATTERY
Document Type and Number:
Japanese Patent JP2019032249
Kind Code:
A
Abstract:
To provide a control device of a secondary battery capable of highly accurately detecting abnormality of a lithium-ion secondary battery at an early stage and properly controlling the lithium-ion secondary battery.SOLUTION: A control device of a secondary battery includes: a voltage sensor 21, a current sensor 22, a temperature sensor 23, for detecting the state of a lithium-ion secondary battery; an AE sensor 24 for detecting acoustic emission signals generated inside the lithium-ion secondary battery; and a battery deterioration diagnosis control part 25 and a battery control part 26 for diagnosing a deterioration state of the lithium-ion secondary battery based on information inputted from each of the sensors 21 to 24 and controlling the lithium-ion secondary battery based on a diagnosis result. The control part 25 reduces an AE detection frequency for performing detection of AE signals by the AE sensor 24 further than energizing time of the lithium-ion secondary battery at non-energizing time of the lithium-ion secondary battery.SELECTED DRAWING: Figure 1
More Like This:
Inventors:
MATSUO KAZUKI
Application Number:
JP2017153794A
Publication Date:
February 28, 2019
Filing Date:
August 09, 2017
Export Citation:
Assignee:
MITSUBISHI MOTORS CORP
International Classes:
G01R31/36; H01M10/48
Attorney, Agent or Firm:
Toshiro Mitsuishi
Mitsuishi Shunpei
Yasuyuki Tanaka
Hiroshi Matsumoto
Tetsuzo Yamada
Mitsuishi Shunpei
Yasuyuki Tanaka
Hiroshi Matsumoto
Tetsuzo Yamada