Ge Avio S.r.l.

Cristian Lai

Pierpaolo Forte

Giuseppe Donini

Simone Recchia

Diego Di Leo

Simone Castellani

Lorenzo Cipolla

Input is received. A conformance is determined. When conformance is determined, a raw torque is measured from a torque sensor at an engine; the raw torque is calibrated using the torque sensor parameters to produce a calibrated torque value, non-torque parameters associated with the engine are measured and the non-torque parameters are applied to a lookup structure to obtain an expected torque value. A separation of the calibrated torque value and the expected torque value is determined and based upon the separation, an operation of the torque sensor is controlled.

Method and apparatus for calibrating a torque sensor using the separation of calibrated and expected torque values

Based upon a measured first resistance, a first delta curve is selected. Based upon a measured second resistance, a second delta curve is selected. A first fuel valve position (FVP) is received from a first position sensor, and the first FVP is applied to the first delta curve to obtain a first offset. A second FVP is received from a second position sensor, and the second FVP is applied to the second delta curve to obtain a second offset. The first offset is applied to the first measured FVP to obtain the first compensated FVP and the second offset is applied to the second measured FVP to obtain the second compensated FVP. The first compensated FVP and the second compensated FVP are correlated to obtain a final compensated FVP, which is applied to a desired fuel valve position to obtain a final fuel valve position.

Method and apparatus for controlling fuel flow into an aircraft engine

A control system () for an electro-hydraulic servo-actuator () envisages: a controller (), to generate a control current (I), designed to control actuation of the electro-hydraulic servo-actuator (), implementing a position control loop based on a position error (e), the position error (e) being a difference between a reference position (Pos) and a measured position (Pos) of the electro-hydraulic servo-actuator (); and a limitation stage (), coupled to the controller () to provide a limitation of the actuator speed of the electro-hydraulic servo-actuator (); the limitation stage () limits a rate of change of a driving current (I) to be supplied to the electro-hydraulic servo-actuator (), in order to limit the actuator speed.

Control system and method for an electro-hydraulic servo-actuator, in particular of a turbopropeller engine

An electronic control system () for a turbopropeller engine () having a gas turbine () and a propeller (), coupled to the gas turbine, the control system () having a propeller control unit () and a turbine control unit () to jointly control engine power output based on an input request (PLA), wherein the propeller control unit () has a first reference generator (), to determine a reference propeller speed (N) based on the input request (PLA), and a first regulator (), to regulate a propeller speed (N). The propeller control unit () has a reference correction stage () to apply a correction to the reference propeller speed (N) and generate thereby a corrected reference propeller speed (I), and the first regulator () regulates the propeller speed (N) based on the corrected reference propeller speed (I) to achieve optimized efficiency.

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Bari, Italy

Cristian Lai