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公开(公告)号：US10975794B2
公开(公告)日：2021-04-13
申请号：US16616274
申请日：2018-05-25
Applicant: Cummins Inc.
Inventor： Daniel J. Smith
Abstract: A method (50) for isolating a fault within an engine system (10) including an engine control module (40) and a diagnostics module (36) includes determining, by the engine control module (40), a plurality of parameters of the engine system (10), calculating a likelihood of the fault using a log-likelihood ratio analysis of data within the engine control module (40), and providing a plurality of fault determinations and the likelihood of each of the plurality of fault determinations using plurality of parameters and the diagnostics module (36) of the engine system (10).
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公开(公告)号：US11215530B2
公开(公告)日：2022-01-04
申请号：US16434234
申请日：2019-06-07
Applicant: Cummins Inc.
Inventor： Daniel J. Smith
IPC: G01M15/09 , F02D13/02 , F02D41/00 , F02D41/22 , G01M15/10 , G01M15/08 , G01M15/05 , F02D41/06 , F02N11/10 , F02D41/14 , F02D35/02
Abstract: Systems, apparatuses and methods for systematically executing a diagnosis and fault isolation of a failure condition for an engine during a cranking test of the engine. Examples of the failure condition include, but are not limited to, cylinder-by-cylinder compression conditions, excessive blow-by conditions, valve failures, leaks, and/or obstructions of the intake, exhausts, crankcase ventilation, and/or exhaust gas recirculation systems.
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公开(公告)号：US20190285512A1
公开(公告)日：2019-09-19
申请号：US16434234
申请日：2019-06-07
Applicant: Cummins Inc.
Inventor： Daniel J. Smith
Abstract: Systems, apparatuses and methods for systematically executing a diagnosis and fault isolation of a failure condition for an engine during a cranking test of the engine. Examples of the failure condition include, but are not limited to, cylinder-by-cylinder compression conditions, excessive blow-by conditions, valve failures, leaks, and/or obstructions of the intake, exhausts, crankcase ventilation, and/or exhaust gas recirculation systems.
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公开(公告)号：US20250095421A1
公开(公告)日：2025-03-20
申请号：US18959435
申请日：2024-11-25
Applicant: Cummins Inc.
Inventor： Jeffrey Diwakar Abraham , Marcela Schmalz de Bernardi , Avra Brahma , Timothy J. Greis , Michael Haas , Gregory H. Henderson , Adam W. Kidd , Lyle E. Kocher , Krithika Mohan , Daniel J. Smith , Christophe Tricaud , Ananth Vemuri , Easwar Yarrabikki
Abstract: A system is configured to store a relationship data set of a plurality of diagnostic estimators and a plurality of failure modes, each failure mode represents a type of failure that can occur with a sensor or a vehicle component of a vehicle system, each diagnostic estimator is associated with a respective subset of the failure modes, each subset defines a control space within the vehicle system that contains at least one of (i) one or more sensors or (ii) one or more vehicle components. The system is configured to store a healthy diagnostic vector regarding nominal operational parameters of the vehicle system; acquire diagnostic information regarding current operational parameters of the vehicle system to generate an error diagnostic vector; apply the error diagnostic vector to the healthy diagnostic vector to generate a ratio diagnostic vector; and apply the ratio diagnostic vector to generate a value for each failure mode.
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Patent Agency Ranking
公开(公告)号：US11798325B2
公开(公告)日：2023-10-24
申请号：US17247383
申请日：2020-12-09
Applicant: Cummins Inc.
Inventor： Jeffrey Diwakar Abraham , Marcela Schmalz de Bernardi , Avra Brahma , Timothy J. Greis , Michael Haas , Gregory H. Henderson , Adam W. Kidd , Lyle E. Kocher , Krithika Mohan , Daniel J. Smith , Christophe Tricaud , Ananth Vemuri , Easwar Yarrabikki
CPC classification number: G07C5/0808 , B60R16/0234 , F02B37/24 , F02M26/02 , F02M35/10222 , G07C5/008 , G07C5/085 , G07C5/0816
Abstract: A system includes a controller configured to store a relationship matrix of a plurality of diagnostic estimators and a plurality of failure modes, each failure mode represents a type of failure that can occur with (i) a sensor or (ii) a vehicle component of a vehicle system, each diagnostic estimator is associated with a respective subset of the failure modes, each respective subset defines a control volume within the vehicle system that contains at least one of (i) one or more sensors or (ii) one or more vehicle components; store a healthy diagnostic vector regarding nominal operational parameters of the vehicle system; acquire diagnostic information regarding current operational parameters of the vehicle system to generate an error diagnostic vector; divide the error diagnostic vector by the healthy diagnostic vector to generate a ratio diagnostic vector; multiply the ratio diagnostic vector with the relationship matrix to generate a value for each failure mode.
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公开(公告)号：US20200158041A1
公开(公告)日：2020-05-21
申请号：US16616274
申请日：2018-05-25
Applicant: Cummins Inc.
Inventor： Daniel J. Smith
Abstract: A method (50) for isolating a fault within an engine system (10) including an engine control module (40) and a diagnostics module (36) includes determining, by the engine control module (40), a plurality of parameters of the engine system (10), calculating a likelihood of the fault using a log-likelihood ratio analysis of data within the engine control module (40), and providing a plurality of fault determinations and the likelihood of each of the plurality of fault determinations using plurality of parameters and the diagnostics module (36) of the engine system (10).
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公开(公告)号：US12175813B2
公开(公告)日：2024-12-24
申请号：US18371183
申请日：2023-09-21
Applicant: Cummins Inc.
Inventor： Jeffrey Diwakar Abraham , Marcela Schmalz de Bernardi , Avra Brahma , Timothy J. Greis , Michael Haas , Gregory H. Henderson , Adam W. Kidd , Lyle E. Kocher , Krithika Mohan , Daniel J. Smith , Christophe Tricaud , Ananth Vemuri , Easwar Yarrabikki
Abstract: A system is configured to store a relationship data set of a plurality of diagnostic estimators and a plurality of failure modes, each failure mode represents a type of failure that can occur with a sensor or a vehicle component of a vehicle system, each diagnostic estimator is associated with a respective subset of the failure modes, each subset defines a control space within the vehicle system that contains at least one of (i) one or more sensors or (ii) one or more vehicle components. The system is configured to store a healthy diagnostic vector regarding nominal operational parameters of the vehicle system; acquire diagnostic information regarding current operational parameters of the vehicle system to generate an error diagnostic vector; apply the error diagnostic vector to the healthy diagnostic vector to generate a ratio diagnostic vector; and apply the ratio diagnostic vector to generate a value for each failure mode.
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公开(公告)号：US20240013594A1
公开(公告)日：2024-01-11
申请号：US18371183
申请日：2023-09-21
Applicant: Cummins Inc.
Inventor： Jeffrey Diwakar Abraham , Marcela Schmalz de Bernardi , Avra Brahma , Timothy J. Greis , Michael Haas , Gregory H. Henderson , Adam W. Kidd , Lyle E. Kocher , Krithika Mohan , Daniel J. Smith , Christophe Tricaud , Ananth Vemuri , Easwar Yarrabikki
CPC classification number: G07C5/0808 , G07C5/085 , G07C5/0816 , F02M35/10222 , F02M26/02 , F02B37/24 , B60R16/0234 , G07C5/008
Abstract: A system is configured to store a relationship data set of a plurality of diagnostic estimators and a plurality of failure modes, each failure mode represents a type of failure that can occur with a sensor or a vehicle component of a vehicle system, each diagnostic estimator is associated with a respective subset of the failure modes, each subset defines a control space within the vehicle system that contains at least one of (i) one or more sensors or (ii) one or more vehicle components. The system is configured to store a healthy diagnostic vector regarding nominal operational parameters of the vehicle system; acquire diagnostic information regarding current operational parameters of the vehicle system to generate an error diagnostic vector; apply the error diagnostic vector to the healthy diagnostic vector to generate a ratio diagnostic vector; and apply the ratio diagnostic vector to generate a value for each failure mode.
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公开(公告)号：US20220180673A1
公开(公告)日：2022-06-09
申请号：US17247383
申请日：2020-12-09
Applicant: Cummins Inc.
Inventor： Jeffrey Diwakar Abraham , Marcela Schmalz de Bernardi , Avra Brahma , Timothy J. Greis , Michael Haas , Gregory H. Henderson , Adam W. Kidd , Lyle E. Kocher , Krithika Mohan , Daniel J. Smith , Christophe Tricaud , Ananth Vemuri , Easwar Yarrabikki
Abstract: A system includes a controller configured to store a relationship matrix of a plurality of diagnostic estimators and a plurality of failure modes, each failure mode represents a type of failure that can occur with (i) a sensor or (ii) a vehicle component of a vehicle system, each diagnostic estimator is associated with a respective subset of the failure modes, each respective subset defines a control volume within the vehicle system that contains at least one of (i) one or more sensors or (ii) one or more vehicle components; store a healthy diagnostic vector regarding nominal operational parameters of the vehicle system; acquire diagnostic information regarding current operational parameters of the vehicle system to generate an error diagnostic vector; divide the error diagnostic vector by the healthy diagnostic vector to generate a ratio diagnostic vector; multiply the ratio diagnostic vector with the relationship matrix to generate a value for each failure mode.
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