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:
May. 26, 2026
Filed:
Apr. 25, 2025
Pratt & Whitney Canada Corp., Longueuil, CA;
Poi Loon Tang, Coquitlam, CA;
Xuening Lu, Oakville, CA;
Pratt & Whitney Canada Corp., Longueuil, CA;
Abstract
A method includes receiving a torque load demand associated with a rotor, and a gas-turbine engine (GTE) power measurement among first measurements from a GTE. The method includes determining whether the torque load demand is within operating limits of the GTE without assistance from a motor, based on the first measurements compared to a condition for operating in an assisted mode. The method includes generating a first command signal that sets a motor torque limit, and a second command signal that sets a motor speed reference value based on a difference between the torque load demand and the GTE power measurement. The method includes setting or reducing the motor torque limit to a low value when the condition for operating in the assisted mode is not satisfied, and increasing the motor torque limit to a high value when the condition for operating in the assisted mode is satisfied.