Method for controlling a turbomachine comprising a gas generator and an electric motor

A method for controlling a turbomachine (100) comprising a fan (110) positioned upstream of a gas generator and delimiting a primary flux and a secondary flux, said gas generator being traversed by the primary flux and comprising a low-pressure compressor (111), a high-pressure compressor (112), a combustion chamber (113), a high-pressure turbine (114) and a low-pressure turbine (115), said low-pressure turbine (115) being connected to said low-pressure compressor by a low-pressure rotation shaft (121) and said high-pressure turbine (114) being connected to said high-pressure compressor (112) by a high-pressure rotation shaft (122), the turbomachine (100) comprising an electric motor (ME) forming a torque injection device on the high-pressure rotation shaft (122), a method in which a fuel flow rate setpoint (Qcons) in the combustion chamber (113) and a torque setpoint (Tcons) supplied to the electric motor (ME) are defined, the control method comprising the steps of:

• determining (E1) a hybridization rate (TH) corresponding to a power consumed (Pe) by the electric motor (ME) in relation to a power generated by the high-pressure rotation shaft (122),
• determining (E2) a torque threshold (Tseuil) from the hybridization rate (TH), and
• limiting (E3) the torque setpoint (Tcons) to the torque threshold (Tseuil) if the torque setpoint (Tcons) is greater than the torque threshold (Tseuil).