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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：涡轮螺旋桨发动机从地面过渡到飞行构型的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 (Ip) 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 and controls the pitch angle below the minimum flight value, up to a minimum ground value lower than the minimum flight value, during a ground operating mode; the propeller control unit, during a transition from the ground operating mode to the flight operating mode, engages the mechanical lock, thereby causing an increase of the pitch angle towards the minimum flight value independently from the control action. 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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机译：用于具有燃气轮机（20）和联接至燃气轮机（20）的螺旋桨组件（3）的涡轮螺旋桨发动机（2）的电子控制系统（35），该控制系统（35）实施螺旋桨控制单元（PEC） ）根据飞行员的输入请求来控制螺旋桨操作，方法是为致动组件（29）生成驱动量（I p ），该致动组件用于调节螺旋桨叶片（10）的桨距角（β） ）。在飞行操作模式期间，控制单元接合机械锁，从而确定俯仰角的最小飞行值，并松开机械锁并将俯仰角控制在最小飞行值以下，直至最小地面值小于最小飞行值，在地面操作模式下;在从地面操作模式转换为飞行操作模式的过程中，螺旋桨控制单元与机械锁接合，从而使俯仰角朝着最小飞行值增加，而与控制动作无关。特别地，由于从地面操作模式到飞行操作模式的转换，控制单元预期在机械锁接合之前的时间段（T）中俯仰角的增加。
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