Output power management for engines
AssigneePratt & Whitney Canada Corp.
InventorsPhilippe-Andre Tetrault, Yves Cloutier
Life of this patent
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Abstract
Methods and systems for operating an engine are provided. An engine core temperature is monitored. When the engine core temperature is below an engine thermal limit adjusted for a level of deterioration of the engine, an output power of the engine is set in accordance with a reference power based on non-thermal limits of the engine. When the engine core temperature is near or above the engine thermal limit adjusted for the level of deterioration of the engine, the output power of the engine is set to a value lower than the reference power based on non-thermal limits of the engine to reduce the engine core temperature.
Claims18
A method for operating an engine, the method comprising:
- monitoring an engine core temperature;
- when the engine core temperature is below an engine thermal limit adjusted for a level of deterioration of the engine, setting an output power of the engine in accordance with a reference power based on non-thermal limits of the engine;
- and
- when the engine core temperature is near or above the engine thermal limit adjusted for the level of deterioration of the engine, setting the output power of the engine to a value lower than the reference power based on non-thermal limits of the engine to reduce the engine core temperature.
A system for operating an engine, the system comprising:
- a processor;
- and
- a non-transitory computer-readable medium having stored thereon program instructions executable by the processor for:
- monitoring an engine core temperature;
- when the engine core temperature is below an engine thermal limit adjusted for a level of deterioration of the engine, setting an output power of the engine in accordance with a reference power based on non-thermal limits of the engine;
- and
- when the engine core temperature is near or above the engine thermal limit adjusted for the level of deterioration of the engine, setting the output power of the engine to a value lower than the reference power based on non-thermal limits of the engine to reduce the engine core temperature.
A method for operating an engine, comprising:
- setting an output power of the engine in accordance with a reference power based on non-thermal limits of the engine;
- detecting that an engine core temperature is near or exceeds an engine thermal limit, said engine thermal limit adjusted based on a level of deterioration of the engine;
- and
- in response to the detecting, setting the output power of the engine to a value lower than the reference power until the engine core temperature reaches the engine thermal limit adjusted based on the level of deterioration of the engine.
Dependencies are inferred from the claim text.