US 2026/0307781 A1Published application

Peak Efficiency Propeller Control

AssigneePipistrel d.o.o.

InventorDrago Matko

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Abstract

A peak efficiency propeller control system includes a pilot interface, an air data sensor, a torque feedback loop, an RPM feedback loop, and an optimum seeking controller. The torque feedback loop includes an electric motor, an electric motor torque controller, an electric motor inverter, and a torque sensor configured to provide a desired torque of the electric motor. The RPM feedback loop includes an RPM controller, an inner feedback loop having a blade angle actuator and a blade angle sensor, and an outer feedback loop having an RPM sensor, configured to provide an optimum blade angle of a propeller and a propeller RPM. The optimum seeking controller continuously provides, based on information received from the pilot interface and the air data sensor, the desired torque via the torque feedback loop and the optimum blade angle and propeller RPM via the RPM feedback loop to operate the propeller at maximum efficiency.

Claims20

Dependent claims

A system for providing peak efficiency propeller control, the system comprising:

a pilot interface;
an air data sensor;
a torque feedback loop wherein the torque feedback loop comprises:
an electric motor;
an electric motor torque controller;
an electric motor inverter;
and
a torque sensor,
wherein the torque feedback loop is configured such that the electric motor torque controller provides a desired torque of the electric motor;
a RPM feedback loop wherein the RPM feedback loop comprises:
an RPM controller that adjusts RPM;
an inner feedback loop having a blade angle actuator and a blade angle sensor in communication with the RPM controller;
and
an outer feedback loop having an RPM sensor in communication with the RPM controller,
wherein the RPM feedback loop is configured such that the RPM controller provides an optimum blade angle of a propeller via the inner feedback loop for controlling a blade angle, and the RPM controller provides a propeller RPM via the outer feedback loop;
and
an optimum seeking controller configured for continuously providing, based on information received from the pilot interface and the air data sensor, a) the desired torque of the electric motor via the torque feedback loop, and b) the optimum blade angle and the propeller RPM via the RPM feedback loop.

14 more elements

Dependencies are inferred from the claim text.