AUTOMATIC SET POINT ADJUSTMENT SYSTEM AND METHOD FOR ENGINE AIR-FUEL RATIO CONTROL SYSTEM
摘要
<p>Systems and methods for continuous automatic adjustment of a control set point of an air-fuel ratio controller of a rich burn engine so as to maintain emissions within a desired range. In an embodiment, a NOx sensor is placed in the exhaust outlet from an exhaust catalyst and the NOx exhaust sensor output is continuously monitored while adjusting the control set point between rich and lean in order to minimize the output from the NOx sensor. Corrections may be continuously made to the set point during operation of the engine to compensate for changes in environmental conditions, engine loads, and other factors.</p>
申请公布号
CA2846087(A1)
申请公布日期
2013.04.04
申请号
CA20122846087
申请日期
2012.09.27
申请人
CONTINENTAL CONTROLS CORPORATION
发明人
FISHER, DAVID GORDON;FISHER, RICHARD ROSS;LAUR, GALINA;GRIMES, HILLARY H., III;YATES, KRISTIAN W.;ZAHIR, JOHN A.;VRONAY, JOHN C.