| 摘要 |
PROBLEM TO BE SOLVED: To prevent generation of fog of fuel to a spark plug by unburnt fuel by a shortage of torque at kicking start. SOLUTION: A crank reference position detecting part 25 determines whether or not a crank pulser signal corresponds to the upper dead center of an intake stroke. A crank angle speed detecting part 26 detects a crank angle speed when the crank pulser signal is of the intake stroke. The crank angle speed is represented by time of a stage. The time of the stage is inputted to a comparing part 27, and is compared with judging criterion time Tref. When the crank angle speed is larger than an expected value, the duty of a fuel injection valve is calculated. When the crank angle speed is smaller than the expected value, the duty for indicating a fuel injection quantity is set to zero. COPYRIGHT: (C)2004,JPO
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