US 12,391,390 B2
System and method for identifying a high-temperature condition of an electrical cable for an aircraft propulsion system
Antwan Shenouda, Mississauga (CA); and Fraz A. Kharal, Brampton (CA)
Assigned to Pratt & Whitney Canada Corp., Longueuil (CA)
Filed by Pratt & Whitney Canada Corp., Longueuil (CA)
Filed on Sep. 25, 2023, as Appl. No. 18/372,500.
Prior Publication US 2025/0100698 A1, Mar. 27, 2025
Int. Cl. H02K 7/18 (2006.01); B64D 27/24 (2006.01); B64D 45/00 (2006.01); B64D 27/02 (2006.01)
CPC B64D 27/24 (2013.01) [B64D 45/00 (2013.01); B64D 27/026 (2024.01)] 20 Claims
OG exemplary drawing
 
1. An assembly for an aircraft propulsion system, the assembly comprising:
a propulsor;
an electric motor operably connected to the propulsor and operable to drive rotation of the propulsor; and
an electrical distribution system including an electrical power source, an electrical cable, and a temperature protection assembly,
the electrical cable electrically connects the electrical power source and the electric motor, and the electrical cable extends through at least one thermal zone between the electrical power source and the electric motor, and
the temperature protection assembly includes a temperature sensor operable to sense a temperature in each thermal zone of the at least one thermal zone, and the temperature protection assembly further includes a controller, the controller includes a processor in communication with a non-transitory memory storing instructions, which instructions when executed by the processor, cause the processor to:
determine a zone temperature in the at least one thermal zone using the temperature sensor;
determine an electrical current flow through the electrical cable; and
estimate a temperature of the electrical cable within the at least one zone using the determined zone temperature of the at least one thermal zone and the determined electrical current flow.