Idle speed maintenance control method and device
AssigneeSafran Aircraft Engines
InventorsSeif Eddine BENATTIA, Cedrik DJELASSI
Life of this patent
Estimating the term…
Abstract
Controlling a turbomachine including: the detection of a speed of a drive shaft of the turbomachine below an idle speed; the detection of a saturation of the fuel setpoint; the selection of a combined torque and fuel regulation loop from among at least one single-variable engine regulation loop and, the determination, in a combined manner, of a value representative of a fuel setpoint and of a value representative of a torque setpoint such that the torque setpoint compensates for the saturation of the fuel setpoint to allow the maintenance of a steady-state speed of the turbomachine.
Claims11
A method for controlling a turbomachine wherein it comprises
- the detection of a speed of a drive shaft of the turbomachine below an idle speed;
- the detection of a saturation of the fuel setpoint;
- the selection of a combined torque and fuel regulation loop from among at least one single-variable engine regulation loop and,
- the determination, in a combined manner, of a value representative of a fuel setpoint and of a value representative of a torque setpoint such that said torque setpoint compensates for the saturation of said fuel setpoint to allow the maintenance of a steady-state speed of said turbomachine.
A control device, in a turbomachine, comprising one or more processors configured to
- detect a speed of a drive shaft of the turbomachine below an idle speed and
- detect a saturation of the fuel setpoint,
- select a combined fuel and torque regulation loop from among at least one single-variable engine regulation loop
- determine, in a combined manner, a value representative of a fuel setpoint and a value representative of a torque setpoint such that said torque setpoint compensates for the saturation of said fuel setpoint to allow the maintenance of a steady-state speed of said turbomachine.
Dependencies are inferred from the claim text.