Method to improve fuel economy in lean burn engines with variable-displacement-like characteristics

G Surnilla, JO Michelini, JM Roth - US Patent 6,758,185, 2004 - Google Patents
US6758185B2 - Method to improve fuel economy in lean burn engines with variable-displacement-like
characteristics - Google Patents US6758185B2 - Method to improve fuel economy in lean burn …

Method of controlling an engine exhaust gas system and method of detecting deterioration of catalyst/adsorbing means

N Kato, H Kurachi - US Patent 6,134,883, 2000 - Google Patents
In a method of controlling an exhaust gas system of an internal combustion engine including
a nitrogen oxide reducing catalyst capable of adsorbing nitrogen oxide under a lean …

Method to control transitions between modes of operation of an engine

G Surnilla - US Patent 6,735,938, 2004 - Google Patents
(57) ABSTRACT A method is disclosed for controlling operation of an engine coupled to an
exhaust treatment catalyst. Under predeter mined conditions, the method operates an …

Method and system of adaptive learning for engine exhaust gas sensors

G Surnilla - US Patent 6,736,120, 2004 - Google Patents
(57) ABSTRACT A method is disclosed for controlling operation of an engine coupled to an
exhaust treatment catalyst. Under predeter mined conditions, the method operates an …

Exhaust emission control apparatus of internal combustion engine and control method of the same

H Tanaka, Y Irisawa - US Patent 6,694,724, 2004 - Google Patents
NOX catalyst for purifying exhaust gas flowing out of an internal combustion engine, and a
NOX Sensor for detecting a NOx concentration in exhaust gas flowing out of the NOX …

Method for rapid catalyst heating

G Surnilla - US Patent 6,568,177, 2003 - Google Patents
(57) ABSTRACT A method is disclosed for controlling operation of an engine coupled to an
exhaust treatment catalyst. Under predeter mined conditions, the method operates an …

Idle speed control for lean burn engine with variable-displacement-like characteristic

G Surnilla, SB Smith - US Patent 6,769,398, 2004 - Google Patents
(57) ABSTRACT A method is disclosed for controlling operation of a engine coupled to an
exhaust treatment catalyst. Under predeter mined conditions, the method operates an …

Method for air-fuel ratio sensor diagnosis

S Gopichandra - US Patent 6,736,121, 2004 - Google Patents
US6736121B2 - Method for air-fuel ratio sensor diagnosis - Google Patents US6736121B2 -
Method for air-fuel ratio sensor diagnosis - Google Patents Method for air-fuel ratio sensor …

Method and system for rapid heating of an emission control device

GA Ingram, G Surnilla - US Patent 7,168,239, 2007 - Google Patents
A method is disclosed for controlling operation of an engine coupled to an exhaust treatment
catalyst. Under predetermined conditions, the method operates an engine with a first group …

Idle speed control for lean burn engine with variable-displacement-like characteristic

G Surnilla, SB Smith - US Patent 7,069,903, 2006 - Google Patents
A method is disclosed for controlling operation of a engine coupled to an exhaust treatment
catalyst. Under predetermined conditions, the method operates an engine with a first group …