US 11,686,757 B2
Systems and methods for circuit failure protection
Kamaraj Thangavelu, Rockford, IL (US); Matthew Ryan Hasseman, Poplar Grove, IL (US); Jeffrey D. Myroth, Roscoe, IL (US); and Ryan Thomas Carter, Woodstock, IL (US)
Assigned to Hamilton Sundstrand Corporation, Charlotte, NC (US)
Filed by Hamilton Sundstrand Corporation, Charlotte, NC (US)
Filed on Sep. 14, 2021, as Appl. No. 17/475,227.
Prior Publication US 2023/0083816 A1, Mar. 16, 2023
Int. Cl. G01R 31/00 (2006.01); G01R 31/28 (2006.01); G01R 31/50 (2020.01); G01R 31/30 (2006.01); G06F 11/30 (2006.01); G06F 11/22 (2006.01)
CPC G01R 31/008 (2013.01) [G01R 31/2815 (2013.01); G01R 31/2834 (2013.01); G01R 31/3004 (2013.01); G01R 31/50 (2020.01); G06F 11/2284 (2013.01); G06F 11/3062 (2013.01); G01R 31/2827 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A controller for an aircraft electrical system, comprising:
a software safe module configured to:
determine whether there was a sudden power failure upon controller initialization; and
cause operation of the controller in a software safe mode if there was a sudden power failure such that manual intervention is required to leave the software safe mode to prevent repetitive power failure of the controller.