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:
Mar. 03, 2026
Filed:
Dec. 30, 2024
Pratt & Whitney Canada Corp., Longueuil, CA;
Thomas Trevor Ricci, Pointe-Claire, CA;
Michael R. Mark, Montreal, CA;
Remi Robache, Montreal, CA;
Antwan Shenouda, Mississauga, CA;
Stephen Minshull, Bromsgrove, GB;
Pratt & Whitney Canada Corp., Longueuil, CA;
Abstract
A propulsion system includes a propulsor, an engine, an electrical assembly, and a protection circuit. The engine is coupled with the propulsor. The electrical assembly includes a battery, a motor control unit, an electric motor, and an electrical distribution system. The electrical distribution system is configured to electrically interconnect the battery and the motor control unit. The electrical distribution system includes a contactor between the battery and the motor control unit. The motor control unit is electrically connected with the electric motor. The electric motor is coupled with the propulsor. The protection circuit includes a current sensor configured to measure an electrical current between the battery and the motor control unit. The protection circuit is operable to identify a reverse current flow using the measured electrical current and transmit a protection open control signal to the contactor to control the contactor to switch to an open state.