Patent ID: 11958622
Assignee: PRATT & WHITNEY CANADA CORP.
Field: Transport (Mechanical engineering)
Classification: CPC B  F  Y | IPC B

Claim 0:
1. A method comprising:
controlling an electric motor of a hybrid-electric powerplant for an aircraft using an EPC (electric powertrain controller);
controlling a heat engine of the hybrid-electric powerplant using an ECU (engine control unit); and
performing at least one of the following to protect the hybrid-electric powerplant:
using the ECU to power down the electric motor; and/or
using the EPC to power down the heat engine,

wherein powering down the electric motor includes powering down the electric motor using the ECU as a failsafe in an event of failure of the EPC to power down the electric motor and/or erroneous commands from the EPC,
wherein powering down the heat engine includes powering down the heat engine using the EPC as a failsafe in an event of failure of the ECU to power down the heat engine and/or erroneous commands from the ECU.