US 12,352,367 B2
Control valve position detection
Eberhard Geißel, Künzell (DE)
Assigned to WOCO Industrietechnik GmbH, Bad Soden-Salmünster (DE)
Filed by WOCO Industrietechnik GmbH, Bad Soden-Salmünster (DE)
Filed on Sep. 21, 2021, as Appl. No. 17/480,435.
Claims priority of application No. 102020124541.6 (DE), filed on Sep. 21, 2020.
Prior Publication US 2022/0090701 A1, Mar. 24, 2022
Int. Cl. F16K 37/00 (2006.01); F16K 31/10 (2006.01); G01B 7/00 (2006.01)
CPC F16K 37/0041 (2013.01) [F16K 31/105 (2013.01); G01B 7/003 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A control valve position detection device for a control valve, the control valve position detection device comprising:
a control element configured to be adjusted by a drive;
electronics configured to:
cause a short-term change in the actuator-characteristic operating variable, wherein the short-term change is reversible; and
detect a position of the control element based on the short-term change in the actuator-characteristic operating variable, the actuator-characteristic operating variable comprising a drive power, a drive actuating force, or a drive torque; and
monitoring electronics configured to: monitor a position of an actuator based on the actuator-characteristic operating variable, and/or diagnose the position of the actuator based on the short-term change in the actuator-characteristic operating variable.