Use Of Intrusive Turbo Wastegate Control For Improved AFIM Detection Capability
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United States of America Patent
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Issued Date -
Jul 6, 2017
app pub date -
Jan 6, 2016
filing date -
Jan 6, 2016
priority date (Note) -
Abandoned
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Abstract
A system includes an air/fuel imbalance (AFIM) control module that determines a position of a wastegate, selectively opens the wastegate in response to a determination that the wastegate is not in a desired open position, and selectively generates an enable signal in response to a determination that the wastegate is in the desired open position. An AFIM calculation module receives an oxygen signal from an oxygen sensor positioned in fluid communication with exhaust flow from the wastegate and selectively calculates an AFIM in a cylinder bank of an engine based on the oxygen signal and the enable signal generated by the AFIM control module.
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