Automatic evaluation of a machine behaviour

US11353843B2 · kind B2 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Alexander Kubik · Erlangen, DE
• Philipp Rost · Nürnberg, DE
• Elmar Schäfers · Bad Mergentheim, DE
• Torsten Schür · Erlangen, DE
• Stephen J. Yutkowitz · Cincinnati, US

Key dates

• Filing date: Aug 23, 2018
• Grant date: Jun 7, 2022
• Expiry date: May 30, 2039

Classification

• Technology area (CPC G): Physics
• CPC primary: G05B2219/50197
• WIPO field: Control
• WIPO sector: Instruments

Abstract

An actuator of a machine is controlled by a control device with a controller structure in a normal operating mode and a special operating mode. The control device determines from a position setpoint value and a position actual value a control signal for the actuator. In the normal operating mode, the setpoint values are determined using a utility program, and in the special operating mode by a system program that is different from the normal operating program. In the special operating mode, a frequency characteristic for the actuator is determined on the basis of the sequence of setpoint values and associated actual values, and an evaluation for the actuator and/or of the controller structure is performed using the frequency characteristic and parameters of the controller structure. Depending on the evaluation, a message is transmitted to an operator of the machine or to a computing device over a network.