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Cheol S. Lee
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Ann Arbor, MI, US
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last 30 patents
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Patent Grant
Air-fuel imbalance detection based on zero-phase filtering
Patent number
7,900,615
Issue date
Mar 8, 2011
GM Global Technology Operations, Inc.
Zhong Wang
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Patents Applications
last 30 patents
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Patent Application
AIR-FUEL IMBALANCE DETECTION BASED ON ZERO-PHASE FILTERING
Publication number
20100077728
Publication date
Apr 1, 2010
GM Global Technology Operations, Inc.
Zhong Wang
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS