Patent ID: 6415763
Filing Date: 2002-07-09
Classification: F02D

Abstract:
a fuel injection quantity control device of an internal combustion engine comprising:basic fuel injection quantity computing means for computing a basic fuel injection quantity based on the operating state of an engine; maximum fuel injection quantity computing means for computing a maximum fuel injection quantity limiting the upper limit of said computed basic fuel injection quantity, as a first maximum fuel injection quantity which is the minimum value when an auxiliary brake is operating, and as a second maximum fuel injection quantity that is gradually increased corresponding to the elapsed time from when said auxiliary brake has been released, and exceeds said basic fuel injection quantity immediately after the release of said auxiliary brake has been completed when said auxiliary brake is not operating; fuel injection quantity selecting means for selecting, as a fuel injection quantity, the smaller value between said computed basic fuel injection quantity and said maximum fuel injection quantity; and fuel injection control means for controlling a fuel injection device based on the selected fuel injection quantity.