System and method for controlling engines of a multi-engine aircraft engine assembly

A method for controlling engines of a multi-engine aircraft engine assembly, the method comprising:

• identifying one or more engine characteristics for each of a first engine and a second engine of the multi-engine aircraft engine assembly, the one or more engine characteristics includes a first quantity of accumulated engine loading cycles for the first engine and a second quantity of accumulated engine loading cycles for the second engine;
• identifying a first operating rule for the first engine using the one or more engine characteristics for each of the first engine and the second engine, and the first operating rule includes a first target rate of change of engine power for the first engine;
• identifying a second operating rule for the second engine using the one or more engine characteristics for each of the first engine and the second engine, the second operating rule includes a second target rate of change of engine power for the second engine, and the first target rate of change of engine power is different than the second target rate of change of engine power;
• and
• controlling a first engine power of the first engine using the first operating rule and controlling a second engine power of the second engine using the second operating rule to power an engine load with each of the first engine and the second engine.

An engine assembly for a multi-engine aircraft, the engine assembly comprising:

• a propulsor;
• a first engine coupled to the propulsor by a gear assembly;
• a second engine coupled to the propulsor by the gear assembly;
• and
• at least one controller including a processor in communication with a non-transitory memory storing instructions, which instructions when executed by the processor, cause the processor to:
• identify one or more engine characteristics for each of the first engine and the second engine, and the one or more engine characteristics include a first responsiveness of the first engine and a second responsiveness of the second engine;
• identify a first operating rule for the first engine and a second operating rule for the second engine using the one or more engine characteristics for each of the first engine and the second engine, the first operating rule including a first target rate of change of a first engine power parameter, and the second operating rule including a second target rate of change of a second engine power parameter which is different than the first target rate of change of the first engine power parameter;
• and
• control the first engine power parameter of the first engine using the first operating rule and control the second engine power parameter of the second engine using the second operating rule.