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公开(公告)号：US20180073416A1
公开(公告)日：2018-03-15
申请号：US15266008
申请日：2016-09-15
Applicant: Delphi Technologies, Inc.
Inventor： Gerard W. Malaczynski , Gregory T. Roth
CPC classification number: F01N13/008 , F01N3/021 , F01N2900/1606 , G01M15/102 , G01N15/0606 , G01N15/0656 , G01N2015/0046
Abstract: A method of quantifying a particulate matter in an exhaust stream includes the steps of accumulating a particulate matter on a sensor. The sensor provides a signal that varies based upon an amount of the particulate on the sensor. The sensor includes a measurement cycle that includes a deadband zone, followed by an active zone, which is followed by a regeneration zone. The particulate matter is calculated after an end of the deadband zone is reached and prior to an end of the measurement cycle.
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公开(公告)号：US20180073415A1
公开(公告)日：2018-03-15
申请号：US15265994
申请日：2016-09-15
Applicant: Delphi Technologies, Inc.
Inventor： Gerard W. Malaczynski , Gregory T. Roth
CPC classification number: F01N11/007 , F01N2560/05 , G01M15/102 , G01N15/0606 , G01N15/0656 , G01N2015/0046
Abstract: A system includes an exhaust system fluidly configured to define an exhaust stream. A sensor is arranged in the exhaust system and is configured to be exposed to the exhaust stream and accumulate particulate matter on the sensor. The sensor provides a signal that varies based upon an amount of particulate matter on the sensor. A control system is in communication with the sensor. The control system includes a controller configured to calculate a differential of a conductance signal related to the signal, compare consecutive differentials to identify an erroneous differential in an abnormal signal based upon an anomaly relating to the accumulation of the particulate matter, and reconstruct the abnormal signal by correcting the erroneous differential to produce a corrected, decimated conductance signal. The control system is configured to determine a total accumulated particulate matter adjusted for the anomaly.
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