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Patent Searching and Data


Title:
BATTERY MANAGING DEVICE
Document Type and Number:
Japanese Patent JP2010031740
Kind Code:
A
Abstract:

To improve determination accuracy of a deterioration state of a battery by correctly calculating inner resistance of the battery.

On starting an engine 1, the battery managing device calculates an inner part resistance value of the battery 4 based on a voltage and a current and determines the deterioration state of the battery 4 based on the inner resistance value. In the battery managing device, calculation of the inner resistance value of the battery 4 based on the voltage and the current of the battery 4 when the engine is started within a predetermined time from engine stop is regulated.


Inventors:
MATSUBARA JOJI
KUROSE KAZUTERU
HATSUDA YASUYUKI
Application Number:
JP2008000194714
Publication Date:
February 12, 2010
Filing Date:
July 29, 2008
Export Citation:
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Assignee:
MITSUBISHI MOTORS CORP
International Classes:
F02D45/00; F02D29/02
Domestic Patent References:
JP2003129927A2003-05-08
JP2006015896A2006-01-19
JP2007287493A2007-11-01
JP2002186108A2002-06-28
Attorney, Agent or Firm:
長門 侃二
山中 純一