公开(公告)号：US11828218B2

公开(公告)日：2023-11-28

申请号：US17592770

申请日：2022-02-04

申请人： Cummins Inc.

发明人： Michael J. Cunningham ,  Neal W. Currier ,  Saurabh Yashwant Joshi ,  Antonius Padua Nusawardhana ,  Aleksey Yezerets

IPC分类号： F01N3/20 ,  F01N9/00 ,  F01N3/10 ,  F01N3/08 ,  F01N3/025 ,  F01N3/023 ,  F01N3/022

CPC分类号： F01N3/208 ,  F01N3/2006 ,  F01N9/005 ,  F01N3/022 ,  F01N3/023 ,  F01N3/0253 ,  F01N3/0821 ,  F01N3/101 ,  F01N9/002 ,  F01N2250/02 ,  F01N2330/06 ,  F01N2370/24 ,  F01N2510/068 ,  F01N2510/0682 ,  F01N2560/026 ,  F01N2570/14 ,  F01N2610/02 ,  F01N2610/146 ,  F01N2900/1402 ,  F01N2900/1818

摘要： Systems, apparatuses, and methods include 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 concentration of one or more of NO and NO2 at or proximate an inlet of the exhaust aftertreatment system and based on a dynamic model of the SCR catalyst, information indicative of a concentration of NOx at or proximate an outlet of the exhaust aftertreatment system, and information indicative of an amount of stored reductant in the SCR catalyst. The controller is further structured to command the at least one reductant doser to increase, decrease, or maintain an amount of reductant provided to the exhaust gas based on the determined concentration of one or more of NO and NO2 in the exhaust gas.

公开(公告)号：US11703548B2

公开(公告)日：2023-07-18

申请号：US17205330

申请日：2021-03-18

申请人： Cummins Inc.

发明人： Aleksey Yezerets ,  Guodong Fan

IPC分类号： G01R31/392 ,  G01R31/385

CPC分类号： G01R31/392 ,  G01R31/385

摘要： Systems and methods for determining state of health (SOH) of a battery. For example, a method includes conditioning the battery by determining an initial state of charge of the battery; charging the battery from the initial state of charge to a first target state of charge via a predetermined multi-stage charging sequence; and determining SOH of the battery by charging the battery from the first target state of charge to a second target state of charge at an ICA charging rate; acquiring a voltage vs. capacity (QV) data of the battery during charging of the battery from the first target state of charge to the second target state of charge; obtaining an incremental capacity (IC) data based on at least the acquired QV data; pre-processing the IC data; extracting an incremental capacity analysis (ICA) peak from the IC data; and determining the SOH of the battery based upon the ICA peak.

公开(公告)号：US20210324775A1

公开(公告)日：2021-10-21

申请号：US17235684

申请日：2021-04-20

申请人： Cummins Inc.

发明人： Di Wang ,  Richard J. Ancimer ,  Michael J. Cunningham ,  Aleksey Yezerets ,  Jinyong Luo ,  Yadan Tang ,  Yuhui Zha

IPC分类号： F01N3/20 ,  F01N3/08 ,  B01J37/08 ,  B01J23/72

摘要： Systems, apparatuses, and methods include predicting a sulfur exposure of one or more copper-zeolite catalysts deployed in an exhaust aftertreatment system; comparing the predicted sulfur exposure to a predefined sulfur exposure threshold; and responsive to the determination, heating the exhaust aftertreatment catalyst to a predefined heat treatment temperature for a predefined time period to desulfate the one or more copper-zeolite catalysts.

公开(公告)号：US20180363528A1

公开(公告)日：2018-12-20

申请号：US16062266

申请日：2016-12-27

申请人： CUMMINS INC.

发明人： Jinyong Luo ,  Ashok Kumar ,  Krishna Kamasamudram ,  Neal W. Currier ,  Aleksey Yezerets ,  Yadan Tang ,  Michael J. Cunningham ,  Di Wang

IPC分类号： F01N3/20 ,  F01N11/00 ,  B01J29/90 ,  B01J38/52 ,  B01J38/62

摘要： A method of recovering selective catalytic reduction catalysts relates to metal-Zeolite based catalysts. A selective catalytic reduction catalyst service event where a metal-Zeolite based selective catalytic reduction catalyst of an exhaust aftertreatment system may perform below a threshold level of performance is determined. The selective catalytic reduction catalyst then exposed to a recovery fluid selected to facilitate movement of metal ions.

公开(公告)号：US10060845B2

公开(公告)日：2018-08-28

申请号：US15462260

申请日：2017-03-17

申请人： Cummins Inc.

发明人： Aleksey Yezerets ,  Z. Gerald Liu ,  Krishna Kamasamudram ,  Neal W. Currier

IPC分类号： B01D53/56 ,  G01N15/08 ,  B01D53/94 ,  B01D46/42 ,  B01D46/00 ,  B01J35/04 ,  B01J23/22 ,  G01L19/08 ,  F01N3/20 ,  F01N3/021 ,  F01N11/00

CPC分类号： G01N15/0826 ,  B01D46/0086 ,  B01D46/42 ,  B01D53/9418 ,  B01D53/9436 ,  B01D53/944 ,  B01D53/9445 ,  B01D53/9477 ,  B01D53/9495 ,  B01D2255/2022 ,  B01D2255/2027 ,  B01D2255/20723 ,  B01D2255/2092 ,  B01D2255/904 ,  B01D2258/012 ,  B01J23/22 ,  B01J35/04 ,  F01N3/021 ,  F01N3/035 ,  F01N3/106 ,  F01N3/2066 ,  F01N3/208 ,  F01N3/36 ,  F01N11/002 ,  F01N13/009 ,  F01N2250/02 ,  F01N2370/02 ,  F01N2560/08 ,  F01N2610/02 ,  F01N2900/1616 ,  G01L19/08 ,  G01N2015/084 ,  Y02T10/24 ,  Y02T10/47

摘要： System and methods for reducing secondary emissions in an exhaust stream from an internal combustion engine are disclosed. The systems and methods include a filtration device positioned downstream from an SCR catalyst of an aftertreatment system disposed in the exhaust system. The filtration device can also be used for particulate filter diagnostics and for treatment of ammonia slip.

公开(公告)号：US09683507B2

公开(公告)日：2017-06-20

申请号：US14263106

申请日：2014-04-28

申请人： Cummins Inc.

发明人： Aleksey Yezerets ,  Timothy R. Frazier ,  Marten H. Dane ,  Samuel C. Geckler ,  Govindarajan Kothandaraman

IPC分类号： F01N3/00 ,  F02D41/14 ,  F01N3/035 ,  F01N3/10 ,  F01N9/00 ,  F01N11/00 ,  F02D41/02

CPC分类号： F02D41/1454 ,  F01N3/035 ,  F01N3/101 ,  F01N9/002 ,  F01N11/005 ,  F01N11/007 ,  F01N2550/04 ,  F01N2560/025 ,  F01N2900/0416 ,  F01N2900/1602 ,  F01N2900/1606 ,  F02D41/029 ,  F02D41/1408 ,  F02D41/1441 ,  F02D41/146 ,  F02D2200/0802 ,  F02D2200/0812 ,  Y02T10/22 ,  Y02T10/24 ,  Y02T10/47

摘要： A system includes an internal combustion ignition engine with an exhaust gas flow, a particulate filter in the exhaust gas flow, a NOx reduction catalyst in the exhaust gas flow downstream of the particulate filter, a first oxygen sensor coupled to the exhaust gas flow downstream of the NOx reduction catalyst, and a second oxygen sensor coupled to the exhaust gas flow between the particulate filter and the NOx reduction catalyst. A controller includes an exhaust conditions module that interprets a first oxygen signal from the first oxygen sensor and a second oxygen signal from the second oxygen sensor and a combustion control module that commands a high engine-out air-fuel ratio when the first oxygen signal indicates a low oxygen content and commands a low engine-out air-fuel ratio when the first oxygen signal indicates a high oxygen content.

公开(公告)号：US09080524B2

公开(公告)日：2015-07-14

申请号：US14189462

申请日：2014-02-25

申请人： Cummins Inc.

发明人： Aleksey Yezerets ,  Krishna Kamasamudram ,  Neal W. Currier ,  Ashok Kumar ,  Michael A. Smith

IPC分类号： F01N3/20 ,  F02D41/02 ,  F01N3/08 ,  F01N3/10 ,  B01J38/06 ,  B01J38/08 ,  B01J38/56 ,  B01J38/04 ,  F01N11/00

CPC分类号： F02D41/0235 ,  B01J38/04 ,  B01J38/06 ,  B01J38/08 ,  B01J38/56 ,  F01N3/0885 ,  F01N3/106 ,  F01N3/2033 ,  F01N3/2066 ,  F01N3/208 ,  F01N11/00 ,  F01N2550/02 ,  F01N2610/02 ,  F01N2610/03 ,  F01N2610/146 ,  F01N2900/1404 ,  Y02T10/24

摘要： System, apparatus, and methods are disclosed for treating a reduction catalyst that has been exposed to an amount of sulfur. The treating of the reduction catalyst includes providing a fluid stream at a position upstream of the reduction catalyst. The fluid stream includes a temperature and a reductant amount, and the reductant amount includes an amount of urea, ammonia, or hydrocarbons.

摘要翻译： 公开了用于处理暴露于一定量硫的还原催化剂的系统，装置和方法。 还原催化剂的处理包括在还原催化剂的上游位置提供流体物流。 流体流包括温度和还原剂量，并且还原剂量包括一定量的尿素，氨或烃。

公开(公告)号：US08920770B2

公开(公告)日：2014-12-30

申请号：US13860979

申请日：2013-04-11

申请人： Cummins Inc.

发明人： Wayne Goodman ,  Aleksey Yezerets ,  Neal W. Currier ,  Cheryl Klepser

IPC分类号： C01B3/24 ,  C01B3/26 ,  F01N5/02 ,  F02G5/02 ,  C01B3/50 ,  F02B43/00 ,  F01N3/10

CPC分类号： F01N3/10 ,  C01B3/26 ,  C01B3/506 ,  C01B2203/048 ,  C01B2203/066 ,  F01N5/02 ,  F02B43/00 ,  F02G5/02 ,  Y02P20/129 ,  Y02T10/16 ,  Y02T10/166 ,  Y02T10/32

摘要： A technique is described including receiving a hydrocarbon stream, and heating the hydrocarbon stream with an exhaust steam from an internal combustion engine. This technique may include reacting the hydrocarbon stream catalytically to produce hydrogen and a modified hydrocarbon stream having a lower saturation state than the hydrocarbon stream, recovering energy from the hydrogen stream, and/or providing the modified hydrocarbon stream to a fuel supply for the internal combustion engine.

摘要翻译： 描述了一种技术，包括接收烃流，并用来自内燃机的排气蒸汽加热烃流。 该技术可以包括使烃流催化反应以产生氢气和具有比烃流更低饱和状态的改性烃流，从氢流回收能量，和/或将改性烃流提供给用于内燃的燃料供应 发动机。

公开(公告)号：US20140271389A1

公开(公告)日：2014-09-18

申请号：US14288526

申请日：2014-05-28

申请人： Cummins Inc.

发明人： Aleksey Yezerets ,  Neal W. Currier ,  Timothy R. Frazier ,  Andrew S. Osburn ,  Krishna Kamasamudram

IPC分类号： B01J38/08 ,  B01D53/94

CPC分类号： B01J38/08 ,  B01D53/90 ,  B01D53/94 ,  B01D53/9409 ,  B01D2251/2062 ,  F01N3/2066 ,  F01N2610/02 ,  F01N2610/06 ,  F01N2610/10 ,  F01P2060/18 ,  Y02A50/2325 ,  Y02T10/24

摘要： There is disclosed method and systems for charging a depleted or spent solid storage media with gaseous ammonia.

摘要翻译： 公开了用气态氨填充耗尽或废弃的固体储存介质的方法和系统。

公开(公告)号：US20140241947A1

公开(公告)日：2014-08-28

申请号：US14273019

申请日：2014-05-08

申请人： Cummins Inc.

发明人： Xu Chen ,  Krishna Kamasamudram ,  Neil W. Currier ,  Aleksey Yezerets

IPC分类号： B01D53/96

CPC分类号： B01D53/96 ,  B01J29/072 ,  B01J29/90 ,  B01J38/02

摘要： An example method includes determining that a selective catalytic reduction (SCR) component having a zeolite-based catalyst is contaminated with platinum (Pt). The method further includes elevating the temperature of the SCR component to at least 600° C. in response to the determining the catalytic component is contaminated with Pt, and maintaining the elevated temperature of the catalytic component for a predetermined time period thereby restoring reduction activity of the catalyst.

摘要翻译： 示例性方法包括确定具有沸石基催化剂的选择性催化还原（SCR）组分被铂（Pt）污染。 该方法还包括响应于确定催化组分被Pt污染并将催化组分的升高温度保持预定时间段，将SCR组分的温度升高至至少600℃，由此恢复还原活性 催化剂。