The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 27, 2019
Filed:
Jul. 11, 2016
Applicant:
Siemens Aktiengesellschaft, Munich, DE;
Inventors:
Patrick Heiler, Waghaeusel, DE;
Bernd-Markus Pfeiffer, Woerth, DE;
Assignee:
Siemens Aktiengesellschaft, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05D 7/06 (2006.01); G05B 23/02 (2006.01); G05B 17/02 (2006.01);
U.S. Cl.
CPC ...
G05D 7/06 (2013.01); G05B 17/02 (2013.01); G05B 23/0254 (2013.01);
Abstract
A diagnostic device and diagnostic method for monitoring the operation of a control loop with a controlled system having a valve as an actuator, wherein in the case of a substantially stepped profile of a setpoint, a linear submodel is identified, which is subsequently used, with a substantially constant setpoint, in order to identify a nonlinear submodel, which is arranged upstream of the linear submodel in a Hammerstein model for the controlled system so as to facilitate a quantitative assessment of the friction behavior of a valve with a comparatively low level of computing complexity.