| 摘要 |
PROBLEM TO BE SOLVED: To improve the exhaust properties, startability and operability at the time of restarting while preventing the generation of the fuel left as it is not burned by stopping the igniting operation after performing the predetermined number of ignition times after an ignition switch is turned off. SOLUTION: An engine control unit(ECU) 2 controls an ignition coil relay 4 and a power transistor 7. When the ignition switch(IS) 1 is turned on and a power source is connected to the ECU 2, the ignition coil relay 4 is turned on. The ECU 2 computes the ignition time and a requested dowel time during the ON time of the IS 1, and controls the power transistor 7 on the basis of a result of the computing. On the other hand, when the IS 1 is turned off so as to stop and engine, fuel injection to the engine is stopped. A discrimination whether the predetermined number of ignition times is performed or not after the IS 1 is turned off is performed. After performing the predetermined number of ignition times, the ignition coil relay 4 is turned off so as to stop the igniting operation, and an ECU relay 3 is turned off so as to cut off the power source by itself for conclusion.
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