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公开(公告)号：US10465589B2
公开(公告)日：2019-11-05
申请号：US15925116
申请日：2018-03-19
Applicant: GM Global Technology Operations LLC
Inventor： Alessandra Neri , Alessia Tuninetti , Maria Camuglia , Giulio Binetti , Giuseppe Mazzara Bologna , Alberto Bemporad , Daniele Bernardini
Abstract: Technical solutions are described for selective catalytic reduction diagnosis in an emissions control system or an exhaust system used for treating exhaust gas, such as in a motor vehicle including an internal combustion engine. An example emissions control system includes a selective catalytic reduction (SCR) device. The emissions control system further includes a controller that is performs SCR fault diagnosis. The SCR fault diagnosis includes computing a plurality of estimated NH3 storage capacity values (Θ) of an SCR catalyst of the SCR device. The diagnosis further includes determining a diagnostic parameter of the SCR device using the plurality of estimated NH3 storage capacity values.
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Patent Agency Ranking
公开(公告)号：US20200065690A1
公开(公告)日：2020-02-27
申请号：US16109194
申请日：2018-08-22
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Alessandra Neri , Maria Camuglia , Alessia Tuninetti , Elena Baralis , Flavio Giobergia , Davide Tricarico
Abstract: A system and method of determining system status in a vehicle system. The method including collecting, by a computing system, a plurality of data associated with a test specimen and the vehicle system, selecting a relevant data set of the plurality of data, the selecting based on at least one correlation coefficient associated with the plurality of data, and transforming at least a portion of the selected relevant data to form a transformed data set, the transforming based on mathematical properties. The method also includes collecting statistics associated with the selected relevant data set and the transformed data set to form a statistics data set, classifying the selected relevant data set, transformed data set, and the statistics data set; and predicting a status of a system based on the classifying.
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3.发明授权公开(公告)号：US10329986B2
公开(公告)日：2019-06-25
申请号：US15653031
申请日：2017-07-18
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Yue-Yun Wang , Yongjie Zhu , Alessia Tuninetti
Abstract: An aftertreatment assembly includes a selective catalytic reduction (SCR) device having a catalyst and configured to receive an exhaust gas. A controller is operatively connected to the SCR device. The controller having a processor and a tangible, non-transitory memory on which is recorded instructions for executing a method of model-based monitoring of the SCR device. The method relies on a physics-based model that may be implemented in a variety of forms. The controller is configured to obtain at least one estimated parameter, and at least one threshold parameter based at least partially on a catalyst degradation model. The catalyst degradation model is based at least partially on a predetermined threshold storage capacity (ΘT). A catalyst status is determined based on a comparison of the estimated and threshold parameters. The operation of the assembly is controlled based at least partially on the catalyst status.
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4.发明申请公开(公告)号：US20190024563A1
公开(公告)日：2019-01-24
申请号：US15653031
申请日：2017-07-18
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Yue-Yun Wang , Yongjie Zhu , Alessia Tuninetti
CPC classification number: F01N11/00 , B01D53/9418 , B01D53/9436 , B01D53/9495 , B01D2251/2067 , B01D2255/911 , B01D2257/404 , B01D2257/406 , F01N3/208 , F01N9/00 , F01N2550/02 , F01N2610/02 , F01N2900/04 , F01N2900/0418 , F01N2900/0601 , F01N2900/1402 , F01N2900/1806 , F02D41/0235 , F02D41/1406 , F02D2041/1412 , F02D2041/1433 , F02D2250/36
Abstract: An aftertreatment assembly includes a selective catalytic reduction (SCR) device having a catalyst and configured to receive an exhaust gas. A controller is operatively connected to the SCR device. The controller having a processor and a tangible, non-transitory memory on which is recorded instructions for executing a method of model-based monitoring of the SCR device. The method relies on a physics-based model that may be implemented in a variety of forms. The controller is configured to obtain at least one estimated parameter, and at least one threshold parameter based at least partially on a catalyst degradation model. The catalyst degradation model is based at least partially on a predetermined threshold storage capacity (ΘT). A catalyst status is determined based on a comparison of the estimated and threshold parameters. The operation of the assembly is controlled based at least partially on the catalyst status.
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公开(公告)号：US11423321B2
公开(公告)日：2022-08-23
申请号：US16109194
申请日：2018-08-22
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Alessandra Neri , Maria Camuglia , Alessia Tuninetti , Elena Baralis , Flavio Giobergia , Davide Tricarico
Abstract: A system and method of determining system status in a vehicle system. The method including collecting, by a computing system, a plurality of data associated with a test specimen and the vehicle system, selecting a relevant data set of the plurality of data, the selecting based on at least one correlation coefficient associated with the plurality of data, and transforming at least a portion of the selected relevant data to form a transformed data set, the transforming based on mathematical properties. The method also includes collecting statistics associated with the selected relevant data set and the transformed data set to form a statistics data set, classifying the selected relevant data set, transformed data set, and the statistics data set; and predicting a status of a system based on the classifying.
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公开(公告)号：US20190284981A1
公开(公告)日：2019-09-19
申请号：US15925116
申请日：2018-03-19
Applicant: GM Global Technology Operations LLC
Inventor： Alessandra Neri , Alessia Tuninetti , Maria Camuglia , Giulio Binetti , Giuseppe Mazzara Bologna , Alberto Bemporad , Daniele Bernardini
Abstract: Technical solutions are described for selective catalytic reduction diagnosis in an emissions control system or an exhaust system used for treating exhaust gas, such as in a motor vehicle including an internal combustion engine. An example emissions control system includes a selective catalytic reduction (SCR) device. The emissions control system further includes a controller that is performs SCR fault diagnosis. The SCR fault diagnosis includes computing a plurality of estimated NH3 storage capacity values (Θ) of an SCR catalyst of the SCR device. The diagnosis further includes determining a diagnostic parameter of the SCR device using the plurality of estimated NH3 storage capacity values.
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