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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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32.发明授权公开(公告)号：US11859569B2
公开(公告)日：2024-01-02
申请号：US17982149
申请日：2022-11-07
Applicant: Cummins Inc. , Tula Technology, Inc.
Inventor： J. Steven Kolhouse , Avra Brahma
IPC: F02D41/00 , F02D13/02 , F02D41/14 , F02D13/06 , B60W20/40 , B60W10/08 , B60W10/06 , F02D41/12 , F01L13/00
CPC classification number: F02D41/0087 , B60W10/06 , B60W10/08 , B60W20/40 , F02D13/0242 , F02D13/06 , F02D41/0072 , F02D41/123 , F02D41/1454 , F01L2013/001 , F02D2250/36
Abstract: Systems and methods for mitigating exhaust gas emissions via cylinder deactivation are provided. A system includes a controller coupled to an internal combustion engine and an electric motive device. The controller includes a processor and a memory. The memory stores instruction that, when executed by the processor, cause the controller to: receive a power request less than a current power output from the internal combustion engine; command the electric motive device to provide a supplemental power output based on the received power request; command the internal combustion engine to operate in a cylinder deactivation mode whereby at least one cylinder of a plurality of cylinders of the internal combustion engine is deactivated; responsive to determining that a power output of the internal combustion engine is substantially equivalent to the power request after commanding the internal combustion engine to operate in the cylinder deactivation mode, deactivate the electric motive device.
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33.发明公开公开(公告)号：US20230204000A1
公开(公告)日：2023-06-29
申请号：US17927573
申请日：2020-05-27
Applicant: Cummins Inc. , Tula Technology, Inc.
Inventor： Jennifer Kay Light-Holets , J. Steven Kolhouse , Christopher R. Nelson , Anant Puri , Xiaobo Song , Avra Brahma
CPC classification number: F02D41/024 , F01N3/202 , F02D41/0087 , F02M27/04 , F01N3/2033 , F02D41/0002 , F02D41/005 , F02D41/38 , F01N3/2066 , F01N3/2026 , F02D2041/389 , F02D2200/50 , F02D2200/0804
Abstract: A system includes an aftertreatment system heater of an exhaust aftertreatment system coupled to an engine A controller coupled to the aftertreatment system heater is configured to determine a condition of an exhaust gas from an engine and compare the condition to a predefined threshold. If the condition of the exhaust gas does not meet the predefined threshold, the controller is configured to determine whether an engine operating condition is met for activating a cylinder deactivation operating mode for the engine. If the engine operating condition is met, the controller is configured to operate the engine in the cylinder deactivation operating mode by deactivating a cylinder of a plurality of cylinders. If the engine operating condition is not met, the controller is configured to activate the aftertreatment system heater to heat the exhaust gas.
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34.发明公开公开(公告)号：US20230175449A1
公开(公告)日：2023-06-08
申请号：US17982149
申请日：2022-11-07
Applicant: Cummins Inc. , Tula Technology, Inc.
Inventor： J. Steven Kolhouse , Avra Brahma
CPC classification number: F02D41/0087 , F02D13/0242 , F02D41/0072 , F02D41/1454 , F01L2013/001 , F02D2250/36
Abstract: Systems and methods for mitigating exhaust gas emissions via cylinder deactivation are provided. A system includes a controller coupled to an internal combustion engine and an electric motive device. The controller includes a processor and a memory. The memory stores instruction that, when executed by the processor, cause the controller to: receive a power request less than a current power output from the internal combustion engine; command the electric motive device to provide a supplemental power output based on the received power request; command the internal combustion engine to operate in a cylinder deactivation mode whereby at least one cylinder of a plurality of cylinders of the internal combustion engine is deactivated; responsive to determining that a power output of the internal combustion engine is substantially equivalent to the power request after commanding the internal combustion engine to operate in the cylinder deactivation mode, deactivate the electric motive device.
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Patent Agency Ranking
公开(公告)号：US20220372926A1
公开(公告)日：2022-11-24
申请号：US17817096
申请日：2022-08-03
Applicant: Cummins Inc.
Inventor： Aaron William Beinborn , Lyle E. Kocher , J. Steven Kolhouse , Suk-Min Moon , Sriram S. Popuri , Janardhan Kodavasal , Ved Merchant , Kristopher R. Bare , Avra Brahma
Abstract: A system and method of controlling operation of an internal combustion engine are provided. The method includes performing a cylinder deactivation operation while running the engine, selecting at least one of the plurality of temperature maintenance actions to increase an exhaust temperature, and performing at least one of the plurality of temperature maintenance actions effective to increase the exhaust temperature. The plurality of temperature maintenance actions may include one or more of a charge air cooler bypass operation, an EGR cooler bypass operation, an aftertreatment system heater operation, a turbocharger bypass operation, a turbocharger geometry adjustment operation, an intake air throttle adjustment operation, and a delayed injection timing operation, or combinations thereof.
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36.发明申请公开(公告)号：US20220316378A1
公开(公告)日：2022-10-06
申请号：US17843743
申请日：2022-06-17
Applicant: Cummins Inc.
Inventor： Avra Brahma
Abstract: A system includes an aftertreatment system coupled to an engine, a heater, at least one sensor configured to determine an exhaust gas temperature, and a processing circuit. The processing circuit is structured to determine whether the exhaust gas temperature is at or below a predefined threshold temperature; provide a first command to control the heater in response to the exhaust gas temperature being at or below the predefined threshold temperature; selectively provide a second command to increase the exhaust gas temperature; and coordinate the first and second commands, where the first command is provided followed by the second command only if the predefined threshold temperature is not attained by the first command.
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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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38.发明申请公开(公告)号：US20210301700A1
公开(公告)日：2021-09-30
申请号：US16829581
申请日：2020-03-25
Applicant: Cummins Inc.
Inventor： Avra Brahma
Abstract: A system includes an aftertreatment system having a catalyst, a heater, at least one sensor configured to determine an exhaust gas temperature, and a controller. The controller is structured to determine whether the exhaust gas temperature is at or below a predefined threshold temperature, provide a first command to start and control the heater in response to the exhaust gas temperature being at or below the predefined threshold temperature, modulate control of the heater as a function of the predefined threshold temperature and an actual temperature, and selectively provide a second command for a close post injection based on the exhaust gas temperature. The controller is further structured to coordinate the first and second commands using a chaining sequence, wherein the first command is provided followed by the second command only if the predefined threshold temperature is not attained by the first command.
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公开(公告)号：US20190331038A1
公开(公告)日：2019-10-31
申请号：US16429137
申请日：2019-06-03
Applicant: Cummins Inc.
Inventor： Avra Brahma , Yongsoon Yoon
Abstract: A system for detecting and controlling air-fuel ratio imbalance conditions between cylinders of an internal combustion engine having a plurality of cylinders is disclosed.
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