| 摘要 |
PURPOSE:To minimize unevenness of the air-fuel ratio in a plurality of cylinders, by controlling the injection timing of fuel injection valves such that the time length from the time when fuel is injected to the time when the suction stroke is started is made uniform. CONSTITUTION:Fuel injection nozzles 500a-500f are provided for respective cylinders, and they are divided into a group #10 (500a, 500d), a group #20 (500b, 500e) and a group #30 (500c, 500f) and connected to a computer 30 electrically. The injection timing of these injection nozzles is so controlled that the time length from the time when fuel is injected to the time when the suction stroke is started is made uniform. By employing such a method, it is enbled to minimize unevenness of the air-fuel ratio in a plurality of cylinders. |
