Engine Compensation for Fan Power

An engine system, comprising:

• an engine;
• a fuel system coupled to the engine;
• a cooling system, coupled to the engine, including a radiator, a hydraulic cooling fan connected to a hydraulic motor, and a hydraulic pump coupled to the hydraulic motor;
• and
• an engine controller, coupled to the engine, the fuel system and the hydraulic pump, including a processor adapted to perform a set of instructions that controls the power of the engine, the instructions including:
• determining a baseline fuel amount for the engine,
• determining an engine cooling fan operating condition based on at least one engine operating parameter,
• determining an engine cooling fan command based on the engine cooling fan operating condition,
• determining an engine cooling fan power level based on the engine speed and the engine cooling fan command,
• determining an additional fuel amount based on the engine cooling fan power level,
• adding the additional fuel amount to the baseline fuel amount to create a compensated fuel amount, and
• providing the compensated fuel amount to the engine.

A method for controlling the power of an engine, comprising:

• determining a baseline fuel amount for the engine;
• determining an increased fuel amount greater than the baseline fuel amount to compensate for cooling fan power;
• and
• providing the increased fuel amount to the engine.

A method for controlling the power of an engine, comprising:

• determining a maximum fuel amount for the engine;
• determining a reduced fuel amount less than the maximum fuel amount to compensate for the difference between a maximum cooling fan power and an actual cooling fan power;
• and
• providing the reduced fuel amount to the engine.