Variable-speed supercharger for highly diluted internal combustion engines

Title: Variable-speed supercharger for highly diluted internal combustion engines

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An engine control system includes an internal combustion engine including a plurality of cylinders. An intake manifold is connected to the internal combustion engine. An exhaust manifold is connected to the internal combustion engine. A supercharger is connected to an air intake passage and the intake manifold and includes a variable speed drive. A throttle valve is disposed in the air intake passage. An exhaust passage is in connection with the exhaust manifold. A passive selective catalytic reduction catalyst system is in communication with the exhaust passage. An exhaust gas recirculation passage is in communication with the exhaust passage and the air intake passage and includes an exhaust gas recirculation valve. A controller controls the variable speed drive of the supercharger and the throttle valve and the exhaust gas recirculation valve based upon engine conditions.

Inventors:: Wu, Ko-Jen; Rudwinsky, Oliver; McAlpine, Robert S.

Issue Date:: 2018-07-10

OSTI Identifier:: 1462958

Assignee:: GM Global Technology Operations LLC (Detroit, MI) DOEEE

Patent Number(s):: 10,018,128

Application Number:: 15/228,301

Contract Number:: EE0006853

Resource Relation:: Patent File Date: 2016 Aug 04

Research Org:: GM Global Technology Operations LLC, Detroit, MI (United States)

Sponsoring Org:: USDOE

Country of Publication:: United States

Language:: English

Subject:: 42 ENGINEERING

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