A method is provided for estimating the NOx content of exhaust gas produced by an internal combustion engine. The method includes determining a first NOx estimate corresponding to the NOx level output by the engine during a first engine operating condition. The method further includes determining a second NOx estimate corresponding to the NOx level output by the engine during a second engine operating condition. The method further includes determining a compensation factor based on intake manifold pressure and applying the compensation factor to the first and second NOx estimates to arrive at a final NOx estimate.
申请公布号
WO2014189528(A1)
申请公布日期
2014.11.27
申请号
WO2013US42753
申请日期
2013.05.24
申请人
INTERNATIONAL ENGINE INTELLECTUAL PROPERTY COMPANY, LLC
发明人
LACK, ADAM C.;SINGH, NAVTEJ;VENKATESH, PRASANNA NAGABUSHAN