Patent ID: 8660721

Claim:
A method for controlling the engine speed of a multi-engine aircraft upon a take-off, the method comprising: determining a take-off speed, with which a take-off preset value of a driving parameter of the engines is associated, being common to all the engines determining with a determination device at least one intermediary preset value of the driving parameter, common to all the engines and corresponding to an intermediary speed, the intermediary preset value being lower than the take-off preset value; communicating the take-off preset value and the intermediary preset value to engine speed controllers integrated into electronic controlling calculators on board the aircraft; initiating the take-off by automatically increasing a speed of the engines with the engine speed controllers from an idling speed up to the intermediary speed corresponding to the intermediary preset value, so that the driving parameter associated with each one of the engines reaches the intermediary preset value; automatically measuring with parameter measurement sensors on board the aircraft, for each one of the engines, a current value of the driving parameter; automatically determining with the electronic controlling calculators on board the aircraft whether, for each of the engines, a difference between the current value of the driving parameter and the intermediary preset value is less than or equal to a predefined threshold indicating that the speed of the corresponding engine is equal to the intermediary speed; when less than all of the engines are operating at the intermediary speed, automatically maintaining with the engine speed controllers the speed of any of the engines operating at the intermediary speed and preventing further acceleration of engines operating at the intermediary speed until others of the engines accelerate to the intermediary speed; and when all of the engines are operating at the intermediary speed, automatically increasing with the engine speed controllers the speed of all of the engines up to the determined take-off speed, so that the driving parameter of all of the engines reaches the take-off preset value.