| 摘要 |
<P>PROBLEM TO BE SOLVED: To accurately estimate stop time of an internal combustion engine under broad operation conditions. Ž<P>SOLUTION: This stop time estimation device calculates engine estimated stop time TSAOAK from the last stop of the internal combustion engine 1 until the present start of the internal combustion engine 1 by using temperature change characteristics in an intake air inlet passage 10 due to heat radiation from the internal combustion engine 1 during stop of the internal combustion engine 1 determined by temperature in the intake air inlet passage 10 at a time of start of the internal combustion engine 1 and temperature in the intake air inlet passage 10 at a time of the last stop of the internal combustion engine 1, and cooling water temperature change characteristics during stop of the internal combustion engine 1 determined by cooling water temperature at a time of start of the internal combustion engine 1 and cooling water temperature at a time of the last stop of the internal combustion engine 1. Consequently, the stop time of the internal combustion engine 1 can be accurately estimated under the broad operation conditions. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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