Daniel I Norton

US Patent:

20160169077, Jun 16, 2016

Filed:

Dec 12, 2014

Appl. No.:

14/569213

Inventors:

- Schenectady NY, US
Maruthi Narasinga Rao Devarakonda - Waukesha WI, US
Jassin Marcel Fritz - Garching, DE
Daniel George Norton - Niskayuna NY, US
Sharath Sridhar Aramanekoppa - Bangalore, IN
Medy Satria - Munich, DE
William Collins Vining - Niskayuna NY, US
Dipankar Deb - Bangalore, IN

International Classification:

F01N 11/00
F01N 3/10

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.