Patent ID: 9156541
Filing Date: 2015-10-13
Classification: B64C,B64D

Abstract:
1. A method of operating a rotorcraft having at least one main rotor of substantially vertical axis, a power plant configured to drive the at least one main rotor, and a regulator unit configured to regulate operation of the power plant, said method comprising: determining, by a control unit of the rotorcraft, the value of a regulation setpoint (C) relating to a speed for driving said at least one main rotor in rotation, the value of the regulation setpoint (C) at least depending on the value of a physicochemical parameter of the ambient air outside the rotorcraft; wherein determining the value of the regulation setpoint (C) includes at least applying a calculation rule that continuously generates progressive and continuous variation of a value for an initial setpoint (NR transmitting the value of the regulation setpoint (C) from the control unit to a regulator unit; and driving the at least one main rotor to rotate in compliance with the value of the regulation setpoint (C) by regulating, by the regulator unit, the operation of the power plant to cause the at least one main rotor to be driven in compliance with the value of the regulation setpoint (C).