公开(公告)号：US20130124068A1

公开(公告)日：2013-05-16

申请号：US13644498

申请日：2012-10-04

Applicant: Cummins Inc.

Inventor： Govindarajan Kothandaraman ,  Vivek Sujan ,  Andrew Osburn ,  Ashwin Vyas

IPC: F02D41/18

CPC classification number: F02D41/18 ,  F02D21/08 ,  F02D2200/0402 ,  F02M26/05 ,  F02M35/10386

Abstract: An apparatus for fresh airflow determination includes an operating conditions module that interprets a MAF value, a current operating condition and a charge flow value. The apparatus further includes a volume estimation module that determines an apparent plumbing volume of an air intake assembly in response to the MAF value, the current operating condition and the charge flow value. The apparatus further includes a volume reporting module that provides the apparent plumbing volume.

Abstract translation: 用于新鲜气流确定的装置包括解释MAF值，当前操作条件和充电流量值的操作条件模块。 该装置还包括体积估计模块，其响应于MAF值，当前操作条件和充电流量值来确定进气组件的表观管道体积。 该装置还包括提供表观管道体积的体积报告模块。

公开(公告)号：US09140203B2

公开(公告)日：2015-09-22

申请号：US13644498

申请日：2012-10-04

Applicant: Cummins Inc.

Inventor： Govindarajan Kothandaraman ,  Vivek Sujan ,  Andrew Osburn ,  Ashwin Vyas

IPC: F02D41/18 ,  F02M35/10 ,  F02M25/07 ,  F02D21/08

CPC classification number: F02D41/18 ,  F02D21/08 ,  F02D2200/0402 ,  F02M26/05 ,  F02M35/10386

Abstract: An apparatus for fresh airflow determination includes an operating conditions module that interprets a MAF value, a current operating condition and a charge flow value. The apparatus further includes a volume estimation module that determines an apparent plumbing volume of an air intake assembly in response to the MAF value, the current operating condition and the charge flow value. The apparatus further includes a volume reporting module that provides the apparent plumbing volume.

Abstract translation: 用于新鲜气流确定的装置包括解释MAF值，当前操作条件和充电流量值的操作条件模块。 该装置还包括体积估计模块，其响应于MAF值，当前操作条件和充电流量值来确定进气组件的表观管道体积。 该装置还包括提供表观管道体积的体积报告模块。

公开(公告)号：US08834821B2

公开(公告)日：2014-09-16

申请号：US14069639

申请日：2013-11-01

Applicant: Cummins Inc.

Inventor： Mert Geveci ,  Andrew Osburn ,  Michael Haas

IPC: B01D53/94 ,  F01N3/18 ,  F01N3/20 ,  G05B19/00 ,  F01N9/00

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 NOx 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 δNOx/δANR, the δNOx/δANR determined according to the NOx 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δNOx/δANR的预定斜率的第一试剂注入量，根据NOx传感器确定的δNOx/δANR，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。

公开(公告)号：US20140056790A1

公开(公告)日：2014-02-27

申请号：US14069639

申请日：2013-11-01

Applicant: Cummins Inc.

Inventor： Mert Geveci ,  Andrew Osburn ,  Michael Haas

IPC: B01D53/94

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 NOx 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 δNOx/δANR, the δNOx/δANR determined according to the NOx 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。 所述方法包括操作极值寻求控制器以确定对应于ΔNOx/δANR的预定斜率的第一试剂注入量，根据NOx传感器确定的ΔNOx/δANR，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。