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公开(公告)号：US20140314645A1
公开(公告)日：2014-10-23
申请号：US14287759
申请日：2014-05-27
Applicant: CUMMINS FILTRATION IP, INC.
Inventor： Abdul R. Ofoli , Hasan Mohammed
IPC: B01D53/94
CPC classification number: B01D53/9495 , B01D53/90 , B01D53/9431 , B01D53/9477 , B01D2251/2062 , B01D2251/2067 , B01D2251/208 , B01D2255/20723 , B01D2255/20738 , B01D2255/20761 , B01D2255/50 , B01D2255/911 , B01D2258/012 , F01N3/035 , F01N3/208 , F01N2560/026 , F01N2570/18 , F01N2900/0411 , F01N2900/0412 , F01N2900/0418 , F01N2900/1402 , F01N2900/1411 , F01N2900/1602 , F01N2900/1616 , F01N2900/1622 , Y02T10/24
Abstract: Described herein are various embodiments of an apparatus, a system, and a methods for reducing NOx emissions using ammonia storage on an SCR catalyst. For example, according to one embodiment, an apparatus for controlling an SCR system of an internal combustion engine system includes an ammonia storage module and a reductant dosing module. The ammonia storage module determines an ammonia storage surface coverage on an SCR catalyst of the SCR system and an ammonia compensation value based on one of an excess ammonia flow rate entering the SCR catalyst and an excess NOx flow rate entering the SCR catalyst. The reductant dosing module that generates a reductant dosing command based on the ammonia compensation value.
Abstract translation: 本文描述了使用SCR催化剂上的氨储存来减少NOx排放的装置，系统和方法的各种实施例。 例如，根据一个实施例，用于控制内燃机系统的SCR系统的装置包括氨储存模块和还原剂计量模块。 氨储存模块基于进入SCR催化剂的过量氨流量和进入SCR催化剂的过量NOx流量之一来确定SCR系统的SCR催化剂上的氨储存表面覆盖率和氨补偿值。 还原剂计量模块，其基于氨补偿值产生还原剂计量命令。
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公开(公告)号：US09475006B2
公开(公告)日：2016-10-25
申请号：US14287759
申请日：2014-05-27
Applicant: CUMMINS FILTRATION IP, INC.
Inventor： Abdul R. Ofoli , Hasan Mohammed
CPC classification number: B01D53/9495 , B01D53/90 , B01D53/9431 , B01D53/9477 , B01D2251/2062 , B01D2251/2067 , B01D2251/208 , B01D2255/20723 , B01D2255/20738 , B01D2255/20761 , B01D2255/50 , B01D2255/911 , B01D2258/012 , F01N3/035 , F01N3/208 , F01N2560/026 , F01N2570/18 , F01N2900/0411 , F01N2900/0412 , F01N2900/0418 , F01N2900/1402 , F01N2900/1411 , F01N2900/1602 , F01N2900/1616 , F01N2900/1622 , Y02T10/24
Abstract: Described herein are various embodiments of an apparatus, a system, and a methods for reducing NOx emissions using ammonia storage on an SCR catalyst. For example, according to one embodiment, an apparatus for controlling an SCR system of an internal combustion engine system includes an ammonia storage module and a reductant dosing module. The ammonia storage module determines an ammonia storage surface coverage on an SCR catalyst of the SCR system and an ammonia compensation value based on one of an excess ammonia flow rate entering the SCR catalyst and an excess NOx flow rate entering the SCR catalyst. The reductant dosing module that generates a reductant dosing command based on the ammonia compensation value.
Abstract translation: 本文描述了使用SCR催化剂上的氨储存来减少NOx排放的装置，系统和方法的各种实施例。 例如，根据一个实施例，用于控制内燃机系统的SCR系统的装置包括氨储存模块和还原剂计量模块。 氨储存模块基于进入SCR催化剂的过量氨流量和进入SCR催化剂的过量NOx流量之一来确定SCR系统的SCR催化剂上的氨储存表面覆盖率和氨补偿值。 还原剂计量模块，其基于氨补偿值产生还原剂计量命令。
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