US 12,203,428 B2
Jam detection and jam tolerant motion control
Matthew Polley, Arlington Heights, IL (US); Dragan Micic, Mt. Prospect, IL (US); Kamran Eftekhari Shahroudi, Fort Collins, CO (US); Joseph Thomas Kopecek, Santa Clarita, CA (US); and James Cale, Fort Collins, CO (US)
Assigned to Woodward, Inc., Fort Collins, CO (US)
Filed by Woodward, Inc., Fort Collins, CO (US)
Filed on Aug. 23, 2022, as Appl. No. 17/893,555.
Claims priority of provisional application 63/236,525, filed on Aug. 24, 2021.
Prior Publication US 2023/0061579 A1, Mar. 2, 2023
Int. Cl. F02K 1/76 (2006.01); H02P 25/14 (2006.01); B64D 29/00 (2006.01); F02K 1/62 (2006.01); F02K 1/70 (2006.01); F02K 1/72 (2006.01)
CPC F02K 1/763 (2013.01) [H02P 25/145 (2013.01); B64D 29/00 (2013.01); F02K 1/625 (2013.01); F02K 1/70 (2013.01); F02K 1/72 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A system comprising:
a flexible structure of an aircraft;
a power inverter;
a first electromechanical device configured to urge movement of a first portion of the flexible structure based on power received from the power inverter;
a second electromechanical device configured to urge movement of a second portion of the flexible structure based on power received from the power inverter;
a power bus configured to conduct power from the power inverter to the first electromechanical device and to the second electromechanical device concurrently;
a feedback sensor configured to provide a feedback signal indicative of alignment between the first portion and the second portion; and
a controller configured to control operation of at least one of the first electromechanical device and the second electromechanical device based on the feedback signal, wherein the controller is configured to modify a first electrical impedance of the first electromechanical device to be different from a second electrical impedance of the second electromechanical device.