The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 11, 2025
Filed:
Aug. 25, 2023
Method and apparatus for actively damping vibrations in a hybrid-electric aircraft propulsion system
Pratt & Whitney Canada Corp., Longueuil, CA;
Richard Freer, St-Basile-le-Grand, CA;
PRATT & WHITNEY CANADA CORP., Longueuil, CA;
Abstract
A method of and system for damping vibrations in a hybrid-electric propulsion system configured to drive a propulsor is provided. The hybrid-electric propulsion system includes a thermal engine, an electric motor, and an inverter. The method includes: a) controlling the thermal engine and the electric motor to operate at a target propulsion parameter, wherein the inverter is used in the controlling of the electric motor; b) determining a presence of a vibrational response within the hybrid-electric propulsion system; c) producing a vibration compensation signal configured to damp the vibrational response within the hybrid-electric propulsion system; and d) controlling the electric motor to damp the vibrational response using the vibrational compensation signal.