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
2024-08-15
Patent
Electronic Resource
English
Hybrid electric propulsion system with start sequence and shutdown sequence
European Patent Office | 2025
|HYBRID ELECTRIC PROPULSION SYSTEM WITH START SEQUENCE AND SHUTDOWN SEQUENCE
European Patent Office | 2024
|