Method and systems for exhaust gas control

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United States of America Patent

PATENT NO 10844813
APP PUB NO 20190234352A1
SERIAL NO

16378407

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Abstract

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Systems and methods are provided for controlling exhaust gas recirculation (EGR). In one example, an engine system includes a first EGR valve coupling an exhaust manifold to an engine exhaust system, a second EGR valve coupling the exhaust manifold to an engine intake system, and a control unit. The control unit selectively adjusts a position of the first EGR valve based on a target amount, and adjusts a position of the second EGR valve based on the target amount and a position of the first EGR valve. Responsive to a first degradation condition of the first EGR valve, the control unit adjusts the position of the second EGR valve based on the target amount and based on a pressure of the first exhaust manifold, and responsive to a second degradation condition of the first EGR valve, adjusts the position of the second EGR valve based on the target amount.

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Patent Owner(s)

Patent OwnerAddress
TRANSPORTATION IP HOLDINGS LLC901 MAIN AVENUE NORWALK CT 06851

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Aramanekoppa, Sharath Sridhar Bangalore, IN 11 21
Bikas, Georgios Garching, DE 8 160
Deb, Dipankar Ahmedabad, IN 8 25
Freund, Sebastian Walter Garching, DE 36 329
Fritz, Jassin Marcel Munich, DE 15 79
Kiran, Shashi Lawrence Park, US 19 111
Kulkarni, Sachin Shivajirao Bangalore, IN 10 78
Patchaikani, Prem Kumar Bangalore, IN 7 13
Sivasubramaniam, Manthram Bangalore, IN 15 173
Srinivasan, Prashant Bangalore, IN 23 245
Yager, James Henry Northville, US 13 105

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