EGR control method and EGR controller

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United States of America Patent

PATENT NO 11939928
APP PUB NO 20220268222A1
SERIAL NO

17639470

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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An EGR valve is provided in an EGR passage circulating a part of an exhaust gas of an exhaust pipe in an intake pipe as an EGR gas, the EGR valve adjusting an EGR gas amount flowing in the EGR passage when an engine is in an EGR region, a differential pressure device is provided in the intake pipe, the differential pressure device adjusting a differential pressure of the EGR valve, a control unit is provided to control the EGR valve and the differential pressure device, and the EGR control method includes switching whether to adjust the EGR gas amount using the EGR valve and the differential pressure device or to adjust the EGR gas amount using the EGR valve only on the basis of an exhaust gas pressure of an inlet portion of the EGR passage.

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Patent Owner(s)

Patent OwnerAddress
NISSAN MOTOR CO LTD2 TAKARA-CHO KANAGAWA-KU YOKOHAMA-SHI KANAGAWA 221-0023

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hamamoto, Takayuki Kanagawa, JP 19 46
Takaki, Daisuke Kanagawa, JP 13 70
Tsuchida, Hirofumi Kanagawa, JP 68 891

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