公开(公告)号：WO2012129179A1

公开(公告)日：2012-09-27

申请号：PCT/US2012/029695

申请日：2012-03-19

Applicant: CUMMINS INC. ,  GEVECI, Mert ,  OSBURN, Andrew

Inventor： GEVECI, Mert ,  OSBURN, Andrew

IPC: F01N3/20

CPC classification number: F01N3/208 ,  F01N3/2066 ,  F01N13/0093 ,  F01N2560/021 ,  F01N2560/026 ,  F01N2900/1402 ,  F01N2900/1411 ,  F01N2900/1602 ,  F01N2900/1616 ,  F01N2900/1621 ,  Y02T10/24

Abstract: A method includes determining a current mid-bed NH3 amount by operating an NH3 sensor positioned at a mid-bed location for an engine aftertreatment system having two SCR catalyst beds. The method further includes operating a NOx sensor positioned at the mid-bed location, and interpreting a current mid-bed ammonia to NOx ratio (ANR) and a current mid-bed NOx in response to the mid-bed NH3 amount and the operating the NOx sensor. The method further includes correcting an output value of the NOx sensor for cross-sensitivity to NH3. The method includes determining a mid-bed ANR constraint, determining a feedforward mid-bed NOx target, and providing a reductant injector command in response to the current mid-bed ANR, the current mid-bed NOx, the ANR constraint, and the feedforward mid- bed NOx target.

Abstract translation: 一种方法包括通过操作位于中间位置处的NH 3传感器来确定具有两个SCR催化剂床的发动机后处理系统来确定当前的中床NH 3量。 该方法还包括操作位于中间位置的NOx传感器，并且响应于中间床NH 3量解释当前的中床氨与NOx的比（ANR）和当前的中床NOx，并且操作 NOx传感器。 该方法还包括校正NOx传感器的输出值以对NH3的交叉敏感度。 该方法包括确定中床ANR约束，确定前馈中床NOx目标，以及响应于当前中床ANR，当前中床NOx，ANR约束和前馈，提供还原剂喷射器命令 中层NOx目标。

公开(公告)号：EP4098854A1

公开(公告)日：2022-12-07

申请号：EP22176532.4

申请日：2022-05-31

Applicant: Cummins, Inc.

Inventor： BARE, Kristopher ,  FOLLEN, Kenneth ,  JIN, Xing ,  LUO, Jinyong ,  NARULA, Manik ,  OSBURN, Andrew ,  PURI, Anant ,  SONG, Xiaobo ,  YUAN, Ying

IPC: F01N3/20 ,  F01N9/00 ,  F01N3/025 ,  F01N3/027

Abstract: A method for managing emissions from a vehicle having an aftertreatment system is provided. The method includes: receiving, by a controller, information indicative of a temperature of an aftertreatment system of the vehicle and a power output of an engine of the vehicle; comparing, by the controller, the temperature of the aftertreatment system to a temperature threshold; comparing, by the controller, the power output to a power output threshold; and responsive to the comparisons, commanding, by the controller, an aftertreatment system heater to selectively engage and disengage to warm the aftertreatment system of the vehicle.

公开(公告)号：EP4431709A2

公开(公告)日：2024-09-18

申请号：EP24192438.0

申请日：2022-05-31

Applicant: Cummins Inc.

Inventor： BARE, Kristopher ,  FOLLEN, Kenneth ,  JIN, Xing ,  LUO, Jinyong ,  NARULA, Manik ,  OSBURN, Andrew ,  PURI, Anant ,  SONG, Xiaobo ,  YUAN, Ying

IPC: F01N3/027

CPC classification number: F01N3/2006 ,  F01N9/00 ,  F01N2240/1620130101 ,  F01N2560/0620130101 ,  F01N2590/1120130101 ,  F01N2900/060220130101 ,  F01N2900/160220130101 ,  F01N2900/1020130101 ,  F01N2900/0820130101 ,  F01N3/025 ,  F01N3/027 ,  Y02T10/40

Abstract: A method for managing emissions from a vehicle having an aftertreatment system is provided. The method includes: receiving, by a controller, information indicative of a temperature of an aftertreatment system of the vehicle and a power output of an engine of the vehicle; comparing, by the controller, the temperature of the aftertreatment system to a temperature threshold; comparing, by the controller, the power output to a power output threshold; and responsive to the comparisons, commanding, by the controller, an aftertreatment system heater to selectively engage and disengage to warm the aftertreatment system of the vehicle.

公开(公告)号：EP4431709A3

公开(公告)日：2024-12-04

申请号：EP24192438.0

申请日：2022-05-31

Applicant: Cummins Inc.

Inventor： BARE, Kristopher ,  FOLLEN, Kenneth ,  JIN, Xing ,  LUO, Jinyong ,  NARULA, Manik ,  OSBURN, Andrew ,  PURI, Anant ,  SONG, Xiaobo ,  YUAN, Ying

IPC: F01N3/20 ,  F01N9/00 ,  F01N3/025 ,  F01N3/027

Abstract: A method for managing emissions from a vehicle having an aftertreatment system is provided. The method includes: receiving, by a controller, information indicative of a temperature of an aftertreatment system of the vehicle and a power output of an engine of the vehicle; comparing, by the controller, the temperature of the aftertreatment system to a temperature threshold; comparing, by the controller, the power output to a power output threshold; and responsive to the comparisons, commanding, by the controller, an aftertreatment system heater to selectively engage and disengage to warm the aftertreatment system of the vehicle.

公开(公告)号：WO2013138121A1

公开(公告)日：2013-09-19

申请号：PCT/US2013/029241

申请日：2013-03-06

Applicant: CUMMINS INC.

Inventor： HENRY, Cary ,  YEZERETS, Aleksey ,  CURRIER, Neal, W. ,  KAMASAMUDRAM, Krishna ,  OSBURN, Andrew

IPC: B01D53/94

CPC classification number: F01N3/208 ,  F01N2240/02 ,  F01N2610/10 ,  F01N2610/1406 ,  F02B37/16 ,  F02B37/18 ,  Y02T10/144 ,  Y02T10/24

Abstract: There is disclosed a method and system for pressurizing a reductant solution from a reductant storage device and superheating the pressurized reductant solution. The superheated pressurized reductant solution at least partially decomposes in the heat exchanger and/or a decomposition chamber before it is released into an exhaust system. The at least partially decomposed reductant solution is delivered to the exhaust system upstream of the SCR catalyst.

Abstract translation: 公开了一种用于从还原剂储存装置加压还原剂溶液并过加热还原剂溶液的方法和系统。 过热加压还原剂溶液在其被释放到排气系统中之前至少部分地在热交换器和/或分解室中分解。 将至少部分分解的还原剂溶液输送到SCR催化剂上游的排气系统。

公开(公告)号：WO2012151442A1

公开(公告)日：2012-11-08

申请号：PCT/US2012/036392

申请日：2012-05-03

Applicant: CUMMINS INC. ,  GEVECI, Mert ,  OSBURN, Andrew ,  HAAS, Michael

Inventor： GEVECI, Mert ,  OSBURN, Andrew ,  HAAS, Michael

IPC: F01N11/00

CPC classification number: B01D53/9495 ,  F01N3/208 ,  F01N9/00 ,  F01N2560/026 ,  F01N2900/1402 ,  F01N2900/1806 ,  Y02T10/24 ,  Y02T10/47

Abstract: A method includes providing: a selective catalytic reduction (SCR) catalyst disposed in an exhaust gas stream of an internal combustion engine, a reagent injector operationally coupled to the exhaust gas stream at a position upstream of the SCR catalyst, and a NO x sensor coupled to the exhaust gas stream at a position downstream of at least a first portion of the SCR catalyst. The method includes operating an extremum seeking controller to determine a first reagent injection amount corresponding to a predetermined slope of δNO x /δANR, the δNO x /δANR determined according to the NO x sensor, providing a reagent injection command in response to the first reagent injection amount, and injecting an amount of the reagent in response to the reagent injection command.

Abstract translation: 一种方法包括提供：设置在内燃机的排气流中的选择性催化还原（SCR）催化剂，在SCR催化剂上游位置处与废气流动作耦合的试剂注入器，以及耦合到 所述废气流在所述SCR催化剂的至少第一部分的下游位置处。 该方法包括操作极值寻求控制器以确定对应于dNOx / dANR的预定斜率的第一试剂注入量，根据NOx传感器确定的dNOx / dANR，响应于第一试剂注入量提供试剂注入命令， 以及响应于试剂注入命令注入一定量的试剂。