US 12,169,004 B2
Control system and method to detect clutch slippage
Thomas W. Pryor, Seattle, WA (US)
Assigned to The Boeing Company, Chicago, IL (US)
Filed by THE BOEING COMPANY, Chicago, IL (US)
Filed on Jul. 1, 2021, as Appl. No. 17/365,800.
Claims priority of provisional application 63/053,355, filed on Jul. 17, 2020.
Prior Publication US 2022/0018402 A1, Jan. 20, 2022
Int. Cl. F16D 48/06 (2006.01); B64C 13/30 (2006.01); B64C 13/50 (2006.01)
CPC F16D 48/06 (2013.01) [B64C 13/30 (2013.01); B64C 13/50 (2013.01); F16D 2500/70426 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A motor assembly comprising:
a motor configured to rotate an input shaft and a first encoder configured to determine a rotational position of the input shaft;
an output shaft and a second encoder configured to determine a rotational position of the output shaft, wherein the output shaft comprises a capstan;
a cable or connector wrapped about the capstan and configured to position a control surface in response to rotation of the capstan; and
a clutch configured to cause the output shaft to alternately engage the input shaft associated with the motor so as to rotate therewith and to be rotatably disengaged from the input shaft associated with the motor,
wherein the rotational positions of the input shaft and the output shaft that are determined by the first and second encoders, respectively, permit slippage of the clutch to be identified.