| 摘要 |
PURPOSE: A control method of exhaust temperature in each cylinder of an engine at a knocking is provided to improve the fuel efficiency by sorting and controlling a cylinder requiring a fuel increase. CONSTITUTION: A basic exhaust temperature is calculated. The calculated exhaust temperature is compared with an optional set value. Thick fuel is applied as a basic air fuel ratio when the calculated exhaust temperature is over the set value. A perception of an igniting time is checked by a knocking control. An increasing/decreasing amount of each cylinder by the ignition perception is calculated when the igniting time is perceived. The thickness as the air fuel ratio of each cylinder is calculated. Thereby, the fuel efficiency is improved.
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