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公开(公告)号：US12209515B2
公开(公告)日：2025-01-28
申请号：US18440939
申请日：2024-02-13
Applicant: Cummins Inc. , Tula Technology, Inc.
Inventor： Timothy R. Frazier , J. Steven Kolhouse , Steven J. Small , Louis Joseph Serrano
Abstract: Systems and methods to extend a life of a component of a cylinder deactivation system are provided. A method includes initiating, by a controller, a CDA mode for an engine; determining, by the controller, a first cycle count for a first oil control solenoid of the CDA system; determining, by the controller, a second cycle count for a second oil control solenoid of the CDA system; comparing, by the controller, the first cycle count and the second cycle count; and modifying, by the controller, operation of the CDA mode for the engine based on the comparison.
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公开(公告)号：US11933202B2
公开(公告)日：2024-03-19
申请号：US17870452
申请日：2022-07-21
Applicant: Cummins Inc. , Tula Technology, Inc.
Inventor： Timothy R. Frazier , J. Steven Kolhouse , Steven J. Small , Louis Joseph Serrano
CPC classification number: F01L13/0005 , F01L9/10 , F02D13/0223 , F02D13/06 , F02D41/0087 , F01L2013/001
Abstract: Systems and methods to extend a life of a component of a cylinder deactivation system are provided. A method includes generating, by a controller, an initial life factor for the component; initiating, by the controller, a CDA mode for an engine; determining, by the controller, an actual life factor for the component, the actual life factor determined by comparing a number of switching events of a cylinder in the CDA mode to a number of cycles of the cylinder in the CDA mode; comparing, by the controller, the actual life factor to the initial life factor; and modifying, by the controller based on the comparison, operation of the engine in the CDA mode to adjust the actual life factor.
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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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公开(公告)号：US20230407804A1
公开(公告)日：2023-12-21
申请号：US17843473
申请日：2022-06-17
Applicant: Cummins Inc. , Tula Technology, Inc.
Inventor： J. Steven Kolhouse , David Langenderfer , David Schmidt , Vijay Srinivasan
CPC classification number: F02D41/029 , F02D41/0087 , F02D41/1454 , F02D41/1448 , F02D2200/021 , F02D2200/701
Abstract: A system includes an exhaust aftertreatment system including a particulate filter and a controller. The controller is configured to: receive a particulate filter regeneration event trigger; receive information, the information comprising a temperature regarding the particulate filter; determine the temperature regarding the particulate filter is below a temperature threshold associated with a particulate filter regeneration event; and responsive to determining the temperature regarding the particulate filter is below the temperature threshold, command the engine to operate in a cylinder deactivation mode, whereby at least one cylinder of a plurality of cylinders of the engine is deactivated.
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5.发明公开公开(公告)号：US20230392561A1
公开(公告)日：2023-12-07
申请号：US17830925
申请日：2022-06-02
Applicant: Tula Technology, Inc.
Inventor： Louis J. SERRANO , Xin YUAN , Shikui Kevin CHEN , Xi LUO , Robert C. WANG , Xiaoping CAI , Vijay SRINIVASAN
CPC classification number: F02D41/0087 , F02D41/2403 , F02D41/0085 , F02D2200/1002 , F02D2200/50 , F02D2200/0802
Abstract: A system and method for operating an ICE by (a) generating a running history of one or more-cylinder events per cylinder, and (b) using the running history to select a least-used non-rotating firing pattern, among a plurality of non-rotating firing patterns, provided for each firing fraction less than one (1). By making the least used selection based on the running history, unequal usage among cylinders of the ICE can be mitigated.
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Patent Agency Ranking
公开(公告)号：US11835004B2
公开(公告)日：2023-12-05
申请号：US17723581
申请日：2022-04-19
Applicant: Tula Technology, Inc. , Cummins, Inc.
Inventor： Benjamin Wolk , Justin Lee , Timothy Hayden Shipp
CPC classification number: F02D41/008 , F02D41/009 , F02D41/3011 , F02D41/403 , F02D2200/021 , F02D2200/0614
Abstract: A variety of methods and arrangements are described for determining a pilot injection mass during skip fire operation of an internal combustion engine.
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7.发明授权公开(公告)号：US11802519B1
公开(公告)日：2023-10-31
申请号：US17987700
申请日：2022-11-15
Applicant: Cummins Inc. , Tula Technology, Inc.
Inventor： Aaron William Beinborn , J. Steven Kolhouse , David J. Langenderfer , David Schmidt
CPC classification number: F02D41/0087 , F02D13/0207 , F02D41/024 , F02D41/22 , F02D41/401 , F02D2200/10
Abstract: Systems and methods for bypassing a compromised engine cylinder via cylinder deactivation are described according to various embodiments herein. A system includes an engine coupled to a controller. The controller includes at least one processor and at least one memory coupled to the at least one processor. The at least one memory stores instructions that, when executed by the at least one processor, cause the controller to: determine that one or more cylinders of a plurality of cylinders of the engine is compromised based on data regarding operation of the engine; and cause the engine to operate in the modified engine operating mode whereby operation of the one or more cylinders that are compromised is modified.
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8.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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9.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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10.发明申请公开(公告)号：US20230115272A1
公开(公告)日：2023-04-13
申请号：US17860838
申请日：2022-07-08
Applicant: Tula Technology, Inc.
Inventor： Louis J. SERRANO , Elliott A. ORTIZ-SOTO , Shikui Kevin CHEN , Li-Chun CHIEN , Aditya MANDAL
Abstract: A classifier capable of predicting if cylinder valves of an engine commanded to activate or deactivate failed to activate or deactivate respectively. In various embodiments, the classifier can be binary or multi-class Logistic Regression, or a Multi-Layer Perceptron (MLP) classifier. The variable displacement engine can operate in cooperation with a variable displacement engine using cylinder deactivation (CDA) or skip fire, including dynamic skip fire and/or multi-level skip fire.
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