US 12,258,149 B2
Method for testing a hybrid drive system on an aircraft, associated computer program and aircraft
Marc Gazzino, Marseilles (FR); Guillaume Dumur, Salon de Provence (FR); Jean-François Logeais, Marseilles (FR); Léonard Boudier, Saint-Chamas (FR); Michel Jamot, Aix en Provence (FR); Mikaël Henaff, Aix en Provence (FR); and Jérémy Camus, Ensues la Redonne (FR)
Assigned to AIRBUS HELICOPTERS, Marignane (FR)
Filed by AIRBUS HELICOPTERS, Marignane (FR)
Filed on Dec. 26, 2023, as Appl. No. 18/396,562.
Claims priority of application No. 2301157 (FR), filed on Feb. 8, 2023.
Prior Publication US 2024/0343415 A1, Oct. 17, 2024
Int. Cl. B64D 27/33 (2024.01); B64F 5/60 (2017.01); G01M 15/00 (2006.01)
CPC B64F 5/60 (2017.01) [B64D 27/33 (2024.01); F05D 2260/80 (2013.01); G01M 15/00 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A method for testing a hybrid power plant equipping a rotary-wing aircraft comprising at least one lift rotor, the hybrid power plant being configured to rotate the at least one lift rotor, the hybrid power plant comprising:
at least one heat engine configured to rotate the at least one lift rotor; and
at least one electric motor supplied with electrical energy by at least one electrical power source, the at least one electric motor being configured to rotate the at least one lift rotor at least when at least one of the heat engine(s) fails,
wherein the method comprises a first test performed on the ground comprising the following steps:
starting the at least one heat engine;
controlling a supply of fuel to the at least one heat engine, the control of the supply of fuel being configured so that a speed of rotation NR of the at least one lift rotor reaches a first threshold speed V1;
when the speed of rotation NR of the at least one lift rotor is greater than or equal to the first threshold speed V1, first control of a supply of power to the at least one electric motor, the first control of the supply of power being configured so that the speed of rotation NR of the at least one lift rotor reaches a second threshold speed V2 greater than the first threshold speed V1, the first control of the supply of power being carried out according to a predetermined control profile;
determining a first period of time D1 taken by the at least one lift rotor to shift from the first threshold speed V1 to the second threshold speed V2; and
checking that the first time period D1 is less than a predetermined threshold time period Ds.