METHOD TO CONTROL OPERATION OF CATALYST CONVERTER OF INTERNAL COMBUSTION ENGINE, CONTROL ELEMENT FOR INTERNAL COMBUSTION ENGINE CONTROL UNIT, UNIT TO CONTROL INTERNAL COMBUSTION ENGINE, AND INTERNAL COMBUSTION ENGINE, AND INTERNAL COMBUSTION ENGINE Russian patent published in 2005 - IPC

FIELD: mechanical engineering; internal combustion engines.

SUBSTANCE: invention can be used in exhaust gas cleaning systems of vehicle internal combustion engines. Proposed engine for vehicle is furnished with catalyst converter which can accumulate and release nitrogen oxides. NO_x pickup is provided for measuring amount of NO_x after said catalyst converter. Engine is furnished with control unit made to provide accumulation of nitrogen oxides in converter up to value not reaching complete saturation with nitrogen oxides. Moreover, control unit makes it possible to provide higher amount of released NO_x before catalyst converter or in converter itself. Condition of catalyst converter can be judged basing on measured amount of released NO_x.

EFFECT: possibility of revealing defects in converter.

9 cl, 3 dwg