Dual injection during intake stroke for improved catalyst light off

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 10066576
APP PUB NO 20180030918A1
SERIAL NO

15220136

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Abstract

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A method for operating a spark-ignition direct-injection internal combustion engine coupled to an exhaust aftertreatment system including a catalytic converter includes monitoring an operating state of the catalytic converter. The method further includes determining if a piston of the engine is entering an intake stroke. The method further includes injecting a first quantity of fuel into a cylinder in which the piston of the engine is entering the intake stroke, and injecting a second quantity of fuel into the cylinder in which the piston of the engine is entering the intake stroke.

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Patent Owner(s)

  • GM GLOBAL TECHNOLOGY OPERATIONS LLC

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gwidt, Jesse Michael Brighton, US 2 6
Hattar, Rafat F Royal Oak, US 27 98
Hutmacher, Jeffrey M Fowlerville, US 13 69

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