Engine control apparatus

An engine control apparatus configured to control an engine, the engine including an injector and a spark plug, the injector being configured to inject fuel into a combustion chamber of the engine, and the spark plug being configured to ignite air-fuel mixture in the combustion chamber, the engine control apparatus comprising

• a control system comprising one or more memories and one or more processors communicably coupled to one another, and configured to control ignition timing of the spark plug,
• the one or more memories being configured to hold a first ignition timing map and a second ignition timing map as timing maps that provide setting of the ignition timing for each engine operation point, the first ignition timing map corresponding to a first number of injection stages of the injector, the second ignition timing map corresponding to a second number of injection stages of the injector, and the second number of ignition stages being greater than the first number of ignition stages, and
• the one or more processors being configured to:
• determine a number of injection stages of the injector;
• when the number of injection stages of the injector is the first number of injection stages, control the ignition timing of the spark plug based on the first ignition timing map;
• and
• when the number of injection stages of the injector is the second number of injection stages, control the ignition timing of the spark plug based on the second ignition timing map.