A method of and system for operating a hybrid electric propulsion system for an aircraft in a start sequence is provided. The hybrid electric propulsion system includes a thermal engine, an electric motor, a gearbox, an electric power storage unit, and a propulsion unit having a propeller having propeller blades. The method includes: driving the propeller from a static state to a target rotational speed within a predetermined range of speeds using the electric motor; transitioning the propeller blades from a feathered mode to an unfeathered mode while the propeller is being driven at the target rotational speed solely by the electric motor; starting the thermal engine; and transitioning the driving of the propeller using the electric motor to driving the propeller using the thermal engine.
Hybrid electric propulsion system with start sequence and shutdown sequence
04.03.2025
Patent
Elektronische Ressource
Englisch
Hybrid Electric Propulsion System with Start Sequence and Shutdown Sequence
Europäisches Patentamt | 2024
|HYBRID ELECTRIC PROPULSION SYSTEM WITH START SEQUENCE AND SHUTDOWN SEQUENCE
Europäisches Patentamt | 2024
|