POST-CATALYST CYLINDER IMBALANCE MONITOR

POST-CATALYST CYLINDER IMBALANCE MONITOR

Methods and systems are provided for detecting cylinder air-fuel imbalance. In one example, a method may include adjusting engine operation based on an indication of cylinder air-fuel imbalance. The imbalance may be detected based on output from a second exhaust gas sensor and a plurality of individ...

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1. Verfasser: MCEWAN DOUGLAS JAMES
Format: Patent
Sprache:eng
Schlagworte:
BLASTING
COMBUSTION ENGINES
CONTROLLING COMBUSTION ENGINES
HEATING
HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
LIGHTING
MECHANICAL ENGINEERING
WEAPONS
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creator MCEWAN DOUGLAS JAMES
description Methods and systems are provided for detecting cylinder air-fuel imbalance. In one example, a method may include adjusting engine operation based on an indication of cylinder air-fuel imbalance. The imbalance may be detected based on output from a second exhaust gas sensor and a plurality of individual cylinder weighting factors, the second sensor located in an exhaust system downstream of a first sensor located in the exhaust system.
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subjects BLASTING
COMBUSTION ENGINES
CONTROLLING COMBUSTION ENGINES
HEATING
HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
LIGHTING
MECHANICAL ENGINEERING
WEAPONS
title POST-CATALYST CYLINDER IMBALANCE MONITOR
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