US 12,460,996 B2
Method for testing the operation of a next generation rescue hoist
David Brookes, Birmingham (GB); and Bejan Ijadi-Maghsoodi, San Dimas, CA (US)
Assigned to GOODRICH ACTUATION SYSTEMS LIMITED, Solihull (GB)
Filed by Goodrich Actuation Systems Limited, Solihull (GB)
Filed on Jun. 7, 2023, as Appl. No. 18/330,637.
Claims priority of application No. 22275076 (EP), filed on Jun. 7, 2022.
Prior Publication US 2023/0393025 A1, Dec. 7, 2023
Int. Cl. G01M 99/00 (2011.01); B66D 3/18 (2006.01)
CPC G01M 99/00 (2013.01) [B66D 3/18 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A computer implemented method for testing a rescue hoist, wherein said hoist comprises a motor drive train and the motor drive train comprises: a primary load brake; a secondary load brake; and a cable drum comprising a cable; the method comprising: starting with said cable of said hoist being at least partially out of said cable drum; reeling the cable into said cable drum at a speed that is sufficient to disengage the primary load brake; verifying that the cable drum is rotating; if verified that the cable drum is rotating, decreasing the motor torque output; engaging the secondary brake; verifying that said cable drum has stopped rotating; when verified that the cable drum has stopped rotating, disengaging the secondary brake; restoring torque motor output; and said cable is reeled into a homed position.