| 摘要 |
PROBLEM TO BE SOLVED: To avoid and suppress deviation of torque and deterioration of output, caused by variation in knocking occurring in each of cylinders.SOLUTION: A control device for an engine includes: a plurality of cylinders; a direct injection valve for directly injecting fuel into the cylinders; a port injection valve for injecting fuel into an intake port; ratio determination means for determining a ratio between an injection amount of the fuel by the direct injection valve and an injection amount of the fuel by the port injection valve for each of the cylinders; knocking detection means for detecting knocking occurring in each of the cylinders; and ignition timing adjustment means for setting ignition timing for each of the cylinders based on information on occurrence of knocking by the knocking detection means. The ratio determination means adjusts the ratio of the injection amount between fuel injection by the direct injection valve and fuel injection by the port injection valve for each of the cylinders so that the variation of the ignition timing among the cylinders determined by the ignition timing adjustment means is within a prescribed range. The prescribed range is set to be in the delay side while having the ignition timing of the cylinder of which ignition timing determined by the ignition timing adjustment means in the state before adjustment of the ratio of the injection amount is the earliest, as a reference value. |
