Fuel injection control apparatus for engines

Details Fuel injection control apparatus for engines Fuel injection control apparatus for engines

F - Mech Eng,Light,Heat,Weapons

02

D

F02D 1/02 (2006.01) F02N 19/00 (2010.01) F02D 41/06 (2006.01) F02D 41/20 (2006.01) F02D 41/30 (2006.01) F02D 41/40 (2006.01) F02D 45/00 (2006.01) F02M 51/00 (2006.01) F02M 57/00 (2006.01) F02N 11/08 (2006.01)

Patent

CA 2447833

To prevent an ignition plug from becoming wet with unburned fuel due to a lack of enough rotating power when the engine is started by a kick. A crankshaft reference position detector 25 determines whether a crankshaft pulser signal corresponds to the top dead center of an intake stroke. If the crankshaft pulser signal is from an intake stroke, then a crankshaft angular velocity detector 26 detects a crankshaft angular velocity. The crankshaft angular velocity is represented by the time of a stage. The time of the stage is input to a comparator 27, which compares it with a reference time Tref. If the crankshaft angular velocity is larger them a predetermined value, then a duty cycle for a fuel injector is calculated. If the crankshaft angular velocity is smaller than the predetermined value, then a duty cycle indicative of a fuel injection quantity is set to zero.

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