US 12,085,425 B2
Method for detecting the position of a movable part and a system for carrying out the method
Michael Müller, Karlsdorf-Neuthard (DE); Manuel Heil, Eggenstein-Leopoldshafen (DE); and Matthias Rümmele, Karlsruhe (DE)
Assigned to SEW-EURODRIVE GMBH & CO. KG, Bruchsal (DE)
Appl. No. 17/774,168
Filed by SEW-EURODRIVE GMBH & CO. KG, Bruchsal (DE)
PCT Filed Oct. 19, 2020, PCT No. PCT/EP2020/025464
§ 371(c)(1), (2) Date May 4, 2022,
PCT Pub. No. WO2021/089182, PCT Pub. Date May 14, 2021.
Claims priority of application No. 102019007616.8 (DE), filed on Nov. 4, 2019.
Prior Publication US 2022/0373361 A1, Nov. 24, 2022
Int. Cl. G01D 5/244 (2006.01); G01D 5/34 (2006.01)
CPC G01D 5/24476 (2013.01) [G01D 5/34 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A method for detecting a position of a movable part by a sensor, of an angular position measuring device and/or a linear position measuring device, including, as sensor signals coding the angular and/or linear position of the movable part, a first signal and a second signal, comprising:
determining an actual variable from the sensor signals coding the angular and/or linear position of the movable part in a chronologically recurring manner; and
triggering a determination of a control value by a trigger signal to regulate the actual variable toward a target value, the control value first changing with a respective next determination triggered by a respective further trigger signal, and the control value determined by the determination triggered by the trigger signal remaining unchanged until a chronologically successive and/or respective further trigger signal;
wherein the sensor is arranged as an optical sensor.