Method and arrangement for correcting for error of particulate matter sensors
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United States of America
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Mar 10, 2020
Grant Date -
Oct 25, 2018
app pub date -
Nov 18, 2015
filing date -
Nov 18, 2015
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Abstract
A method for correcting for aging in particulate matter sensors for a diesel engine includes calculating calculated particulate matter values for a modeled diesel engine exhaust system over a period of time, measuring measured test particulate matter values with a test particulate matter sensor over the period of time in a test diesel engine exhaust system, determining differences between the calculated particulate matter values and the measured test particulate matter values from the test particulate matter sensor over the period of time, and correcting measured particulate matter values in at least one other particulate matter sensor over a same period of time based on the determined differences to obtain a corrected particulate matter value. A particulate matter sensor arrangement and a vehicle including a particulate matter sensor arrangement are also provided.
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