Systems and methods for model based control of catalytic converter systems

US9605579B2 · kind B2 · utility

Assignee

• General Electric Company · US

Inventors

• Prashant Srinivasan · Savanuru, IN
• Maruthi Narasinga Rao Devarakonda · Richland, US
• Jassin Marcel Fritz · Munich, DE
• Daniel George Norton · Niskayuna, US
• Sharath Sridhar Aramanekoppa · Bengaluru, IN
• Medy Satria · Munich, DE
• William Collins Vining · Niskayuna, US
• Dipankar Deb · Ahmedabad, IN

Key dates

• Filing date: Dec 12, 2014
• Grant date: Mar 28, 2017
• Expiry date: Jan 18, 2035

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T10/40
• WIPO field: Environmental technology
• WIPO sector: Chemistry

Abstract

A system includes a controller that has a processor configured to receive a first signal from a first oxygen sensor indicative of a first oxygen measurement, wherein the first oxygen sensor is disposed upstream of a catalytic converter system; and to receive a second signal from a second oxygen sensor indicative of a second oxygen measurement, wherein the second oxygen sensor is disposed downstream of the catalytic converter system; and to execute a catalyst estimator system, wherein the catalyst estimator system is configured to derive an oxygen storage estimate based on the first signal, the second signal, and a catalytic converter model. The processor is configured to derive a system oxygen storage setpoint for the catalytic converter system based on the catalytic converter model and the oxygen storage estimate.