公开(公告)号：US09316166B2

公开(公告)日：2016-04-19

申请号：US13832558

申请日：2013-03-15

Applicant: GM Global Technology Operations LLC

Inventor： Jon C. Miller ,  Scott Jeffrey ,  David Edward Prout

IPC: F02D41/00 ,  F02D41/20

CPC classification number: F02D41/0097 ,  F02D41/004 ,  F02D2041/2027 ,  F02D2200/101

Abstract: A system according to the principles of the present disclosure includes an engine speed module and a valve control module. The engine speed module determines a speed of an engine based on a position of a crankshaft. The valve control module selectively adjusts an operating frequency of a purge valve based on the engine speed.

Abstract translation: 根据本公开的原理的系统包括发动机转速模块和阀控制模块。 发动机速度模块基于曲轴的位置确定发动机的速度。 阀控制模块基于发动机转速选择性地调节排气阀的工作频率。

公开(公告)号：US20180071681A1

公开(公告)日：2018-03-15

申请号：US15260787

申请日：2016-09-09

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Jon C. Miller ,  Michael A. Smith

IPC: B01D53/94 ,  F01N3/20 ,  F01N3/035 ,  F01N3/027 ,  B01D53/96

CPC classification number: B01D53/9431 ,  B01D53/9445 ,  B01D53/9495 ,  B01D53/96 ,  B01D2257/404 ,  F01N3/021 ,  F01N3/023 ,  F01N3/027 ,  F01N3/035 ,  F01N3/2013 ,  F01N3/2066 ,  F01N3/208 ,  F01N9/00 ,  F01N11/00 ,  F01N13/009 ,  F01N2260/04 ,  F01N2550/02 ,  F01N2550/05 ,  F01N2610/02 ,  F01N2900/04 ,  F01N2900/0402 ,  F01N2900/102 ,  F01N2900/1402 ,  F01N2900/1404 ,  F01N2900/1602 ,  F01N2900/1606 ,  F01N2900/1612 ,  F01N2900/1616 ,  F01N2900/1621 ,  F01N2900/1622 ,  F01N2900/1806 ,  Y02A50/2324 ,  Y02A50/2325 ,  Y02T10/22 ,  Y02T10/24 ,  Y02T10/26 ,  Y02T10/47

Abstract: Provided is a method for controlling an exhaust gas treatment system, wherein the system includes an exhaust gas stream supplied by an exhaust gas source to a selective catalytic reduction (SCR) device and a particulate filter device. The method comprises detecting a threshold level of reductant deposits proximate the SCR device, and initiating a selective catalytic reduction device service in response thereto. A threshold level of reductant deposits is detected using a reductant deposit model comprising determining an actual SCR NOx conversion using measured process variables; and comparing the actual SCR NOx conversion to a calibrated NOx conversion value. The calibrated NOx conversion value is determined using exhaust gas flow and system temperature values which substantially correspond to the process variables under which the actual SCR NOx conversion was determined. The device service can include increasing the exhaust gas temperature or initiating an active regeneration of the particulate filter device.

公开(公告)号：US20140278001A1

公开(公告)日：2014-09-18

申请号：US13832558

申请日：2013-03-15

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Jon C. Miller ,  Scott Jeffrey ,  David Edward Prout

IPC: F02D41/00

CPC classification number: F02D41/0097 ,  F02D41/004 ,  F02D2041/2027 ,  F02D2200/101

Abstract: A system according to the principles of the present disclosure includes an engine speed module and a valve control module. The engine speed module determines a speed of an engine based on a position of a crankshaft. The valve control module selectively adjusts an operating frequency of a purge valve based on the engine speed.

Abstract translation: 根据本公开的原理的系统包括发动机转速模块和阀控制模块。 发动机速度模块基于曲轴的位置确定发动机的速度。 阀控制模块基于发动机转速选择性地调节排气阀的工作频率。

公开(公告)号：US10322373B2

公开(公告)日：2019-06-18

申请号：US15260787

申请日：2016-09-09

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Jon C. Miller ,  Michael A. Smith

IPC: F01N3/20 ,  F01N9/00 ,  B01D53/94 ,  B01D53/96 ,  F01N11/00 ,  F01N13/00 ,  F01N3/021 ,  F01N3/023 ,  F01N3/027 ,  F01N3/035

Abstract: Provided is a method for controlling an exhaust gas treatment system, wherein the system includes an exhaust gas stream supplied by an exhaust gas source to a selective catalytic reduction (SCR) device and a particulate filter device. The method comprises detecting a threshold level of reductant deposits proximate the SCR device, and initiating a selective catalytic reduction device service in response thereto. A threshold level of reductant deposits is detected using a reductant deposit model comprising determining an actual SCR NOx conversion using measured process variables; and comparing the actual SCR NOx conversion to a calibrated NOx conversion value. The calibrated NOx conversion value is determined using exhaust gas flow and system temperature values which substantially correspond to the process variables under which the actual SCR NOx conversion was determined. The device service can include increasing the exhaust gas temperature or initiating an active regeneration of the particulate filter device.

公开(公告)号：US20180038298A1

公开(公告)日：2018-02-08

申请号：US15225972

申请日：2016-08-02

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Charles E. Dean ,  Michael A. Smith ,  Michelangelo Ardanese ,  Jon C. Miller

IPC: F02D41/02 ,  F02D41/04 ,  F01N3/027 ,  F01N11/00 ,  F01N3/20 ,  F01N3/021

CPC classification number: F02D41/029 ,  F01N3/021 ,  F01N3/027 ,  F01N3/035 ,  F01N3/208 ,  F01N9/002 ,  F01N11/002 ,  F01N11/007 ,  F01N2550/04 ,  F01N2900/0418 ,  F01N2900/10 ,  F01N2900/14 ,  F02D41/04 ,  F02D41/405 ,  Y02A50/2325 ,  Y02T10/24 ,  Y02T10/47

Abstract: A method for controlling an exhaust gas treatment system is provided. The exhaust gas treatment system includes an exhaust gas stream supplied by an exhaust gas source to a selective catalytic reduction device and a particulate filter device. Additionally or alternatively, the exhaust gas treatment system includes an exhaust gas stream supplied by an exhaust gas source to a selective catalytic reduction filter device. The method comprises initiating a selective catalytic reduction device service in response to a reductant dosing adaptation. The method can further include satisfying a secondary condition prior to initiating a selective catalytic reduction device service. The device service can include increasing the exhaust gas temperature or initiating an active regeneration of the particulate filter device.