Conditionally active min-max limit regulators

US9625886B1 · kind B1 · utility

Assignee

• The United States of America as represented by the Administrator of the National Aeronautics and Space Administration · US

Inventors

• Sanjay Garg · Savanuru, IN
• Ryan D. May · Cleveland, US

Key dates

• Filing date: May 23, 2013
• Grant date: Apr 18, 2017
• Expiry date: Feb 18, 2036

Classification

• Technology area (CPC G): Physics
• CPC primary: G05B11/011
• WIPO field: Control
• WIPO sector: Instruments

Abstract

A conditionally active limit regulator may be used to regulate the performance of engines or other limit regulated systems. A computing system may determine whether a variable to be limited is within a predetermined range of a limit value as a first condition. The computing system may also determine whether a current rate of increase or decrease of the variable to be limited is great enough that the variable will reach the limit within a predetermined period of time with no other changes as a second condition. When both conditions are true, the computing system may activate a simulated or physical limit regulator.