To allow a vehicle to travel even if any malfunction has been detected in detecting precisely malfunction of a capacitor for supplying a peak current for opening a valve in a fuel injection control device in which an injector is opened at a plurality of times within one stroke of combustion to perform fuel injection to an internal combustion engine.
A micro computer 130 measures a charging period where the charging voltage rises by a certain value as well as detecting a charged voltage of the capacitor C10 via a detection circuit 61a. When the charging period is not within a predetermined normal range, the micro computer 130 judges that malfunction where the capacitor C10 could not store electric charges required to practice the fuel injection more than once has been developed. Further, when the malfunction of the capacitor C10 has been detected, the micro computer 130 sets limits on the implementation of fuel injection other than main fuel injection for operating the internal combustion engine.
COPYRIGHT: (C)2007,JPO&INPIT
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Shinichi Maeda
Yukawa Pengxiang
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