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公开(公告)号：US20200264147A1
公开(公告)日：2020-08-20
申请号：US16754623
申请日：2017-10-10
Applicant: Cummins Inc.
Inventor： Saurabh Y. Joshi , Neal W. Currier , Aleksey Yezerets , Ashok Kumar , Tyler A. Rash , Anand Srinivasan , Di Want , Yadan Tang
Abstract: A diagnostic system (10) is provided and includes a sensor (24) disposed downstream from an exhaust gas aftertreatment system. Also included in the diagnostic system (10) is a central diagnostic unit (35) configured to diagnose a condensation condition associated with the sensor (24) for mitigating a sensor failure due to water condensation on the sensor (24), the central diagnostic unit (35) performing the diagnosis on the condensation condition based on water storage and release information related to a component of the exhaust gas aftertreatment system. The sensor (24) is activated based on the water storage and release information.
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公开(公告)号：US09657665B2
公开(公告)日：2017-05-23
申请号：US14189339
申请日：2014-02-25
Applicant: Cummins Inc.
Inventor： Aleksey Yezerets , Krishna Kamasamudram , Neal W. Currier , Ashok Kumar , Michael A. Smith
IPC: F01N3/00 , F02D41/02 , F01N3/08 , F01N3/10 , B01J38/06 , B01J38/08 , B01J38/56 , B01J38/04 , F01N11/00 , F01N3/20
CPC classification number: 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
Abstract: 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.
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13.发明申请SYSTEM, METHOD, AND APPARATUS FOR IMPROVED DESULFURIZATION OF AFTERTREATMENT COMPONENTS 有权改善后处理部件脱硫的系统，方法和装置公开(公告)号：US20150354424A1
公开(公告)日：2015-12-10
申请号：US14826704
申请日：2015-08-14
Applicant: Cummins Inc.
Inventor： Ashok Kumar , Michael A. Smith , Krishna Kamasamudram , Neal Currier , Aleksey Yezerets
CPC classification number: F01N3/2066 , F01N3/106 , F01N3/208 , F01N9/00 , F01N9/005 , F01N11/002 , F01N13/009 , F01N2570/04 , F01N2900/1402 , F01N2900/1612 , F02B37/22 , F02D41/005 , F02D43/04 , Y02T10/144 , Y02T10/24 , Y02T10/47
Abstract: Systems, methods, and apparatuses are provided for determining an SCR component sulfur value, determining whether the SCR component sulfur value exceeds a sulfur regeneration threshold and increasing an engine NO amount incident to an SCR catalyst in response to the SCR component sulfur value exceeding the sulfur regeneration threshold.
Abstract translation: 提供了用于确定SCR组分硫值的系统，方法和装置，确定SCR组分硫值是否超过硫再生阈值，并响应于SCR组分硫值超过硫而增加引入SCR催化剂的发动机NO量 再生阈值。
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公开(公告)号：US11352923B2
公开(公告)日：2022-06-07
申请号：US16754623
申请日：2017-10-10
Applicant: Cummins Inc.
Inventor： Saurabh Y. Joshi , Neal W. Currier , Aleksey Yezerets , Ashok Kumar , Tyler A. Rash , Anand Srinivasan , Di Wang , Yadan Tang
Abstract: A diagnostic system (10) is provided and includes a sensor (24) disposed downstream from an exhaust gas aftertreatment system. Also included in the diagnostic system (10) is a central diagnostic unit (35) configured to diagnose a condensation condition associated with the sensor (24) for mitigating a sensor failure due to water condensation on the sensor (24), the central diagnostic unit (35) performing the diagnosis on the condensation condition based on water storage and release information related to a component of the exhaust gas aftertreatment system. The sensor (24) is activated based on the water storage and release information.
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公开(公告)号：US20210102488A1
公开(公告)日：2021-04-08
申请号：US17247506
申请日：2020-12-14
Applicant: Cummins Inc.
Inventor： Michael Haas , Krishna Kamasamudrum , Ashok Kumar
Abstract: Systems, apparatuses, and methods include an upstream exhaust analysis circuit structured to determine a characteristic of an exhaust gas stream entering a nitrous oxide (NOx) storage catalyst; a prediction circuit structured to predict a downstream NOx concentration of an exhaust gas stream exiting the NOx storage catalyst based on a model of a NOx storage capacity or a dynamic response of the NOx storage catalyst; a downstream exhaust analysis circuit structured to determine a downstream NOx concentration of the exhaust gas stream exiting the NOx storage catalyst; and a comparison circuit structured to compare the predicted downstream NOx concentration to the determined downstream NOx concentration, and determine a health of the NOx storage catalyst based on the comparison.
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Patent Agency Ranking
公开(公告)号：US11719151B2
公开(公告)日：2023-08-08
申请号：US17872926
申请日：2022-07-25
Applicant: Cummins Inc.
Inventor： Michael Haas , Krishna Kamasamudrum , Ashok Kumar
CPC classification number: F01N11/002 , F01N9/005 , F01N11/007 , F01N3/0814 , F01N3/0842 , F01N2550/02 , F01N2550/03 , F01N2560/026 , F01N2570/14 , F01N2900/1614 , F02D41/0245
Abstract: A system includes a controller configured to perform an enable operation responsive to receiving information indicative of an enable parameter, the enable operation includes: determining a predicted downstream NOx value of an exhaust gas stream exiting a NOx storage catalyst; determining a downstream NOx value of the exhaust gas stream exiting the NOx storage catalyst; determining an error between the predicted downstream NOx value and the determined downstream NOx value; comparing the error to an error threshold; and determining that the NOx storage catalyst is in good health responsive to determining that the error does not exceed the error threshold. The controller is further configured to perform a disable operation responsive to receiving information indicative of a disable parameter, the disable operation causing a deactivation of at least a portion of the controller.
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公开(公告)号：US20220356833A1
公开(公告)日：2022-11-10
申请号：US17872926
申请日：2022-07-25
Applicant: Cummins Inc.
Inventor： Michael Haas , Krishna Kamasamudrum , Ashok Kumar
Abstract: A system includes a controller configured to perform an enable operation responsive to receiving information indicative of an enable parameter, the enable operation includes: determining a predicted downstream NOx value of an exhaust gas stream exiting a NOx storage catalyst; determining a downstream NOx value of the exhaust gas stream exiting the NOx storage catalyst; determining an error between the predicted downstream NOx value and the determined downstream NOx value; comparing the error to an error threshold; and determining that the NOx storage catalyst is in good health responsive to determining that the error does not exceed the error threshold. The controller is further configured to perform a disable operation responsive to receiving information indicative of a disable parameter, the disable operation causing a deactivation of at least a portion of the controller.
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公开(公告)号：US09624803B2
公开(公告)日：2017-04-18
申请号：US14826704
申请日：2015-08-14
Applicant: Cummins Inc.
Inventor： Ashok Kumar , Michael A. Smith , Krishna Kamasamudram , Neal Currier , Aleksey Yezerets
CPC classification number: F01N3/2066 , F01N3/106 , F01N3/208 , F01N9/00 , F01N9/005 , F01N11/002 , F01N13/009 , F01N2570/04 , F01N2900/1402 , F01N2900/1612 , F02B37/22 , F02D41/005 , F02D43/04 , Y02T10/144 , Y02T10/24 , Y02T10/47
Abstract: Systems, methods, and apparatuses are provided for determining an SCR component sulfur value, determining whether the SCR component sulfur value exceeds a sulfur regeneration threshold and increasing an engine NO amount incident to an SCR catalyst in response to the SCR component sulfur value exceeding the sulfur regeneration threshold.
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公开(公告)号：US20150113966A1
公开(公告)日：2015-04-30
申请号：US14067814
申请日：2013-10-30
Applicant: Cummins Inc.
Inventor： Krishna Kamasamudram , Neal W. Currier , Ashok Kumar
CPC classification number: B01J29/78 , B01D53/9409 , B01D53/9431 , B01D2251/206 , B01D2255/20723 , B01D2255/20738 , B01D2255/20761 , B01D2255/50 , B01D2255/9032 , B01D2258/012 , B01J29/72 , F01N3/106 , F01N3/2066 , F01N13/009 , F01N13/0093 , F01N2510/0682 , F01N2570/145 , F01N2900/1404 , Y02A50/2344 , Y02C20/10 , Y02T10/24
Abstract: Systems, apparatus and methods are disclosed for reducing the amount of nitrous oxide (N2O) produced in a selective catalytic reductant (SCR) catalyst in an exhaust aftertreatment system. The SCR catalysts are arranged to reduce the amount of N2O produced during NOx reduction while not adversely affecting NOx conversion.
Abstract translation: 公开了用于减少排气后处理系统中在选择性催化还原剂（SCR）催化剂中产生的一氧化二氮（N2O）的量的系统，装置和方法。 SCR催化剂被设置为减少NOx还原期间产生的N 2 O的量，而不会不利地影响NOx转化。
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20.发明申请公开(公告)号：US20140237995A1
公开(公告)日：2014-08-28
申请号：US14189339
申请日：2014-02-25
Applicant: Cummins Inc.
Inventor： Aleksey Yezerets , Krishna Kamasamudram , Neal W. Currier , Ashok Kumar , Michael A. Smith
CPC classification number: 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
Abstract: 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.
Abstract translation: 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。
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