A method and system are disclosed for compensating a mass air flow signal produced by a mass air flow sensor in fluid communication with an air intake passageway of an internal combustion engine. A mass air flow signal produced by the mass air flow sensor is monitored and an expected oxygen concentration of exhaust gas produced by the engine is determined. A compensation parameter is determined as a function of the expected oxygen concentration and a measured value of the oxygen concentration of the exhaust gas. A compensated mass air flow value is determined as a function of the mass air flow signal and the compensation parameter.
申请公布号
WO2008079821(A1)
申请公布日期
2008.07.03
申请号
WO2007US87956
申请日期
2007.12.18
申请人
CUMMINS, INC.;RUTH, MICHAEL, J.;SULLIVAN, STEWART, D.