Method and device for determining a measure of quality continuously

US11726470B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Thomas Bleile · Stuttgart, DE
• Christina Hoepfner · Bergen, DE
• Rene Huck · Eßlingen, DE

Key dates

• Filing date: Sep 16, 2021
• Grant date: Aug 15, 2023
• Expiry date: Nov 23, 2041

Classification

• Technology area (CPC G): Physics
• CPC primary: G05B23/0254
• WIPO field: Control
• WIPO sector: Instruments

Abstract

A method of continuously determining a measure of quality for a control device of a technical device or for a system model of a technical system, from an input variable and an output variable. Time series of the input variable and the output variable are acquired up to a time step. A discrete ARMAX model structure is adapted for the ascertained, corresponding time series of the input variable and output variable, in order to determine a first set of parameters for modeling the time series of the input variable and a second set of parameters for modeling the time series of the output variable. The measure of quality is determined for the time step as a function of the first and the second set of parameters.