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公开(公告)号：US20240128483A1
公开(公告)日：2024-04-18
申请号：US18482858
申请日：2023-10-07
发明人： Christopher NELSON , Bryn EPP , Nathaniel Ian JOOS
IPC分类号： H01M8/04089 , F04D13/06 , F04D29/046 , F04D29/08 , F04D29/58 , H01M8/04007 , H01M8/04303 , H01M8/04701 , H01M8/04746 , H01M8/04955
CPC分类号： H01M8/04097 , F04D13/06 , F04D29/046 , F04D29/08 , F04D29/586 , H01M8/04007 , H01M8/04303 , H01M8/04708 , H01M8/04753 , H01M8/04955
摘要： A recirculation pump includes an impeller, a pump motor assembly, and a heater. The pump motor assembly includes a pump housing having a pump cavity and a pump motor arranged in the pump cavity that drives the impeller, the pump housing arranged axially away from the impeller. The heater is disposed on or in the pump housing and spaced apart from the impeller. The heater is configured to increase a temperature of any portion of the fluid that leaks from the impeller into the pump cavity and resides in the pump cavity. The increase in the temperature causes the fluid that resides in the pump cavity to flow toward the impeller and exit the pump cavity.
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公开(公告)号：US20240128482A1
公开(公告)日：2024-04-18
申请号：US18390113
申请日：2023-12-20
IPC分类号： H01M8/04089 , B01F23/10 , B01F25/312 , H01M8/04119 , H01M8/04746
CPC分类号： H01M8/04097 , B01F23/10 , B01F25/31251 , B01F25/31252 , B01F25/312533 , H01M8/04179 , H01M8/04753 , B01F2101/59
摘要： The present disclosure is generally directed to a design geometry of a venturi or an ejector that is optimized in systems and methods for increasing the operating range of the venturi or the ejector in a fuel cell system. The present disclosure is also generally directed to fuel cell systems and methods for sizing and/or integrating a recirculation blower with a venturi or an ejector in a fuel cell or fuel cell stack. The present disclosure is further generally directed to systems and methods of operating a fuel cell system comprising more than one venturi or ejectors during transient operations.
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公开(公告)号：US11959410B2
公开(公告)日：2024-04-16
申请号：US17962974
申请日：2022-10-10
申请人： Cummins Inc.
发明人： Ankit Raghunath Lad , Joshua Alan Lantz , Vaibhav J. Lawand , Nicholas R. Lewis , Ian W. McGiffen , Arulkumaran Muthukumarasamy
CPC分类号： F01N3/2066 , B01D53/9418 , B01D53/9495 , F02D41/0082 , F02D41/0235 , F02D41/042 , F01N3/0293 , F01N3/0296 , F01N2410/06 , F01N2430/02 , F01N2550/05 , F01N2610/102 , F01N2610/1453 , F01N2610/1486 , F01N2900/0422 , F01N2900/08 , F01N2900/12 , F01N2900/1404 , F01N2900/16 , F01N2900/1616 , F01N2900/18 , F01N2900/1806 , F01N2900/1811 , F01N2900/1818 , F01N2900/1821 , F02D2041/0265 , F02D2200/08
摘要： A method includes determining that at least one diesel emissions fluid (DEF) doser of an exhaust aftertreatment system is likely frozen based on at least one of an ambient air temperature or a DEF source temperature; operating an engine in a cylinder cutout mode in response to the determination that the at least one DEF doser is likely frozen; and, discontinuing the cylinder cutout mode in response to determining that the at least one DEF doser is in a predefined condition.
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34.发明授权公开(公告)号：US11952930B2
公开(公告)日：2024-04-09
申请号：US17169898
申请日：2021-02-08
申请人： Cummins Inc.
CPC分类号： F01N3/027 , F01N3/2013 , F01N9/002 , F01N2250/02
摘要： One exemplary embodiment is a vehicle system comprising an engine, an exhaust aftertreatment system including a heating element, an electric machine configured to selectably operate as a motor or a generator, an inverter module including a plurality of inverter phase legs and an auxiliary leg, and an electronic control system in operative communication with the inverter module and the exhaust aftertreatment system. The electronic control system is configured to evaluate whether the electric machine is operating as a generator, selectably operate the plurality of inverter phase legs to rectify AC power received from the electric machine, evaluate whether to heat one or more components of the exhaust aftertreatment system, and selectably operate the auxiliary leg to provide rectified power from the inverter legs to one or more electrical heating elements thermally coupled with the one or more components exhaust aftertreatment system effective to heat the one or more components.
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公开(公告)号：US20240109423A1
公开(公告)日：2024-04-04
申请号：US18274432
申请日：2021-02-17
申请人： Cummins Inc.
CPC分类号： B60L3/102 , B60L3/106 , B60L15/2036 , B60L15/2045 , B60L2220/42 , B60L2240/26 , B60L2240/423 , B60L2240/642
摘要： A system for controlling a plurality of electric axles of a vehicle is disclosed, comprising: the plurality of electric axles, one or more motor generators associated with one or more of the plurality of electric axles, and a multi-axle controller communicatively coupled to the one or more motor generators and configured to execute software to cause the multi-axle controller to: determine a power demand of the vehicle based at least in part on one or more parameters of each electric axle and current and/or future road grade; generate a performance cost function associated with one or more performance metrics, the power demand, and/or the vehicle information; determine a power distribution among the plurality of electric axles by optimizing the performance cost function; and transmit a traction command to the one or more motor generators to control the operation of the plurality of electric axles.
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公开(公告)号：US20240093321A1
公开(公告)日：2024-03-21
申请号：US18364703
申请日：2023-08-03
申请人： Cummins Inc.
发明人： Andrew M. Armuth
CPC分类号： C21D1/20 , C21D1/58 , C21D1/74 , C21D6/00 , C21D9/0062 , C21D2211/002
摘要： Methods and apparatuses for obtaining bainite are disclosed. The method includes heating a metal component in a vacuum chamber of a vacuum furnace to raise an internal temperature of the metal component, transferring the metal component from the vacuum chamber to a quench chamber of the vacuum furnace, quenching the metal component in oil that is maintained at a bainite-forming temperature range within a quench reservoir of the quench chamber, and removing the metal component from the quench chamber after a predetermined period of time.
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公开(公告)号：US20240084467A1
公开(公告)日：2024-03-14
申请号：US18460333
申请日：2023-09-01
IPC分类号： C25B15/029 , C25B1/04 , C25B9/65 , C25B9/70 , H02J3/00
CPC分类号： C25B15/029 , C25B1/04 , C25B9/65 , C25B9/70 , H02J3/004
摘要： The present disclosure relates to systems and methods to forecast changes in renewable energy availability to maximize hydrogen production by electrolysis systems over a period of renewable energy availability. The present disclosure relates to a method of utilizing variable energy including using a look-ahead forecast model, which provides an assessment of available renewable energy. The present disclosure relates to a method of operating of one or more electrolyzer cell stacks in an electrolysis system to produce hydrogen by using the look-ahead forecast model in real-time.
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公开(公告)号：US11928806B2
公开(公告)日：2024-03-12
申请号：US17174884
申请日：2021-02-12
申请人： Cummins Inc.
发明人： Yujun Wang , Ben Wang , Carl Justin Kamp , Leigh Anne Rogoski , Rafael Ernesto Vasquez Lombardo , Michael J. Cunningham , Krishna Pradeep Chilumukuru , Neal W. Currier
CPC分类号： G06T7/0004 , G05B15/02 , G06T3/40 , G06T7/11 , G06T2207/10081 , G06T2207/20132
摘要： A computer system is structured to determine a density of particulate matter in a diesel particulate filter (DPF) sample. The computer system includes a processing circuit having a processor and a memory. The processing circuit is structured to generate a computed tomography (CT) scan-based image of the DPF sample; and, segment the CT scan-based image of the DPF sample into a plurality of regions. For at least one region from the plurality of regions, the processing circuit is structured to determine a density of a portion of the DPF sample corresponding to the at least one region of the CT scan-based image of the DPF sample and cause an electronic display of a user device to display the CT scan-based image including the at least one region and an indication of the density for the at least one region.
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公开(公告)号：US20240077010A1
公开(公告)日：2024-03-07
申请号：US18236577
申请日：2023-08-22
申请人： Cummins Inc.
发明人： Haifeng Shi , Yang Z. Zhou , Chengxiu Huang
CPC分类号： F01N11/002 , F01N3/2066 , F02D41/0235 , F01N2610/1453 , F02D2200/08
摘要： Systems and methods for diagnosing at least one component in an exhaust aftertreatment system are provided. The system includes an exhaust aftertreatment system coupled to an engine system, at least one sensor, and at least one processing circuit structured to: receive initial sensor data; determine an initial parameter value based on the initial sensor data; determine that the initial parameter does not satisfy an initial threshold; perform operations to diagnose at least one component of the exhaust aftertreatment system comprising: causing the engine system to operate through a sequence of a plurality of engine outputs; receiving a plurality of sensor data, each of the plurality sensor data corresponding to at least one of the plurality of engine outputs; comparing each of the plurality of sensor data to a corresponding threshold; and diagnosing the at least one component based on the comparison.
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40.发明公开公开(公告)号：US20240077009A1
公开(公告)日：2024-03-07
申请号：US18493645
申请日：2023-10-24
申请人： Cummins Inc.
发明人： Michael J. Cunningham , Neal W. Currier , Saurabh Yashwant Joshi , Antonius Padua Nusawardhana , Aleksey Yezerets
CPC分类号： F01N3/208 , F01N3/2006 , F01N9/005 , F01N3/101 , F01N2560/026 , F01N2570/14 , F01N2610/02 , F01N2610/146 , F01N2900/1402 , F01N2900/1818
摘要： A system includes a controller for an exhaust aftertreatment system including a SCR catalyst in exhaust gas-receiving communication with an engine and at least one reductant dosing system structured to provide reductant to the exhaust gas. The controller is structured to determine a ratio of NO to NO2 at or proximate an inlet of the SCR catalyst. The controller is further structured to command the at least one reductant dosing system to increase, decrease, or maintain an amount of reductant provided to the exhaust gas based on comparing the ratio of NO to NO2 to a previous NO to NO2 ratio.
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