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SYSTEM AND METHOD FOR PROPELLER RESPONSE ENHANCEMENT DURING TRANSITION FROM GROUND TO FLIGHT CONFIGURATION FOR A TURBOPROPELLER ENGINE
SYSTEM AND METHOD FOR PROPELLER RESPONSE ENHANCEMENT DURING TRANSITION FROM GROUND TO FLIGHT CONFIGURATION FOR A TURBOPROPELLER ENGINE
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机译：从地面转换到涡轮螺旋桨发动机的飞行配置过程中螺旋桨响应增强的系统和方法
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摘要
An electronic control system (35) for a turbopropeller engine (2) having a gas turbine (20) and a propeller assembly (3) coupled to the gas turbine (20), the control system (35) implementing a propeller control unit (PEC) to control propeller operation based on a pilot input request, via generation of a driving quantity (I) for an actuation assembly (29) designed to adjust a pitch angle (β) of propeller blades (10). The control unit engages a mechanical lock determining a minimum flight value for the pitch angle during a flight operating mode, and disengages the mechanical lock during a ground operating mode; the propeller control unit, causes an increase of the pitch angle towards the minimum flight value. In particular, the control unit anticipates the increase of the pitch angle in a time period (T) before the mechanical lock engagement due to transition from the ground operating mode to the flight operating mode.
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