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Title:
STARTABILITY FORECASTING DEVICE
Document Type and Number:
Japanese Patent JP2008232038
Kind Code:
A
Abstract:

To provide a startability forecasting device capable of accurately forecasting whether an on-vehicle battery can start a starter of an engine or not.

This startability forecasting device is provided with a calculation means 15 calculating voltage current characteristic formula of the on-vehicle battery 1 based in measured voltage value and current value, a storage means 13 storing voltage current characteristics of an engine start device 10, and a forecasting means 14 forecasting whether the engine can be started or not based on the voltage current characteristic formula of the on-vehicle battery and the voltage current characteristics of the start device 10. The device is provided with a means 15 determining whether the on-vehicle battery 1 is being charged or not, a discharge means 4 making the on-vehicle battery 1 perform pulse discharge when the judging means 15 determines that the battery in not being charged, and a load 5 for making the on-vehicle battery 1 perform pulse discharge, and voltage value and current value of the on-vehicle battery 1 is measured while the discharge means 4 is making the on-vehicle battery 1 perform pulse discharge.


Inventors:
ANZAI YOICHIRO
IKUTA KATSUYA
Application Number:
JP2007073779A
Publication Date:
October 02, 2008
Filing Date:
March 21, 2007
Export Citation:
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Assignee:
AUTO NETWORK GIJUTSU KENKYUSHO
SUMITOMO WIRING SYSTEMS
SUMITOMO ELECTRIC INDUSTRIES
International Classes:
F02N11/08; B60R16/04; F02D45/00; G01R31/36; H01M10/48
Domestic Patent References:
JP2006089014A2006-04-06
JP2004270496A2004-09-30
JP2000255285A2000-09-19
Attorney, Agent or Firm:
Nobuo Kono



 
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