公开(公告)号：US20170321590A1

公开(公告)日：2017-11-09

申请号：US15144871

申请日：2016-05-03

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Luciano Nunziato Di Perna ,  Raffaello Ardanese ,  Michael J. Paratore, JR. ,  Rahul Mital ,  Jianwen Li

IPC: F01N13/00 ,  B01D53/94 ,  F01N3/035 ,  F01N3/10 ,  F01N3/28 ,  F01N3/20 ,  F01N3/027

CPC classification number: F01N13/0093 ,  B01D53/9431 ,  B01D53/9477 ,  B01D2251/2067 ,  B01D2255/904 ,  B01D2258/012 ,  F01N3/027 ,  F01N3/035 ,  F01N3/101 ,  F01N3/103 ,  F01N3/2066 ,  F01N3/2892 ,  F01N9/00 ,  F01N13/0097 ,  F01N2240/16 ,  F01N2240/20 ,  F01N2330/02 ,  F01N2370/02 ,  F01N2490/20 ,  F01N2610/02 ,  F01N2610/1453

Abstract: An engine exhaust system includes an exhaust pipe assembly having an engine exhaust system inlet configured to receive engine exhaust and an engine exhaust system outlet. The system includes a first selective catalytic reduction (SCR) catalyst device positioned downstream in exhaust flow from the engine exhaust system inlet. The first SCR catalyst device includes a substrate with a metallic catalyst coated on the substrate. An electric heater is configured to heat the metallic catalyst. A second SCR catalyst device is positioned downstream in engine exhaust flow from the first SCR catalyst device and upstream of the engine exhaust system outlet. The first SCR catalyst device and the exhaust pipe assembly define an empty chamber between the substrate and the second SCR catalyst device. Engine exhaust flows directly from the substrate to the second SCR catalyst device through the empty chamber.

公开(公告)号：US09046025B2

公开(公告)日：2015-06-02

申请号：US13912870

申请日：2013-06-07

Applicant: GM Global Technology Operations LLC

Inventor： Raffaello Ardanese ,  Min Sun ,  Justin Adam Shetney ,  Shouxian Ren ,  Christopher P. Musienko

IPC: F01N11/00 ,  F01N3/20 ,  F01N3/08

CPC classification number: F01N11/00 ,  F01N3/0842 ,  F01N3/2066 ,  F01N3/208 ,  F01N2560/026 ,  F01N2610/02 ,  F01N2900/1614 ,  F01N2900/1621 ,  Y02T10/24 ,  Y02T10/47

Abstract: A selective catalytic reduction (SCR) device monitoring system includes an engine out NOx monitoring module, an SCR out NOx monitoring module configured and disposed to monitor NOx released from the SCR device, and a NOx storage model module operatively connected to the engine out NOx module and the SCR out NOx monitoring module. The NOx storage model module is configured and disposed to determine an amount of NOx stored in the SCR device. A consumed ammonia correction model module is operatively coupled to the NOx storage model module and configured and disposed to calculate a corrected consumed ammonia correction factor.

Abstract translation: 选择性催化还原（SCR）装置监测系统包括发动机排出NOx监测模块，SCR排出NOx监测模块，其配置和设置为监测从SCR装置释放的NOx;以及NOx存储模型模块，其可操作地连接到发动机出口NOx模块 和SCR out NOx监测模块。 NOx存储模型模块被配置和设置以确定存储在SCR装置中的NOx的量。 消耗的氨校正模型模块可操作地耦合到NOx存储模型模块，并且被配置和设置为计算经校正的消耗氨校正因子。

公开(公告)号：US20140360165A1

公开(公告)日：2014-12-11

申请号：US13912870

申请日：2013-06-07

Applicant: GM Global Technology Operations LLC

Inventor： Raffaello Ardanese ,  Min Sun ,  Justin Adam Shetney ,  Shouxian Ren ,  Christopher P. Musienko

IPC: F01N11/00

CPC classification number: F01N11/00 ,  F01N3/0842 ,  F01N3/2066 ,  F01N3/208 ,  F01N2560/026 ,  F01N2610/02 ,  F01N2900/1614 ,  F01N2900/1621 ,  Y02T10/24 ,  Y02T10/47

Abstract: A selective catalytic reduction (SCR) device monitoring system includes an engine out NOx monitoring module, an SCR out NOx monitoring module configured and disposed to monitor NOx released from the SCR device, and a NOx storage model module operatively connected to the engine out NOx module and the SCR out NOx monitoring module. The NOx storage model module is configured and disposed to determine an amount of NOx stored in the SCR device. A consumed ammonia correction model module is operatively coupled to the NOx storage model module and configured and disposed to calculate a corrected consumed ammonia prediction factor.

Abstract translation: 选择性催化还原（SCR）装置监测系统包括发动机排出NOx监测模块，SCR排出NOx监测模块，其配置和设置为监测从SCR装置释放的NOx;以及NOx存储模型模块，其可操作地连接到发动机出口NOx模块 和SCR out NOx监测模块。 NOx存储模型模块被配置和设置以确定存储在SCR装置中的NOx的量。 消耗的氨校正模型模块可操作地耦合到NOx存储模型模块，并且被配置和设置为计算经校正的消耗氨预测因子。

公开(公告)号：US20140157982A1

公开(公告)日：2014-06-12

申请号：US13712016

申请日：2012-12-12

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Michelangelo Ardanese ,  Raffaello Ardanese ,  Michael J. Paratore, JR. ,  Eugene V. Gonze

IPC: B01D46/00

CPC classification number: B01D46/0063 ,  F01N3/0222 ,  F01N3/027 ,  F01N3/106 ,  F01N3/2066 ,  F01N9/002 ,  F01N9/005 ,  F01N13/009 ,  F01N2330/06 ,  F01N2550/04 ,  F01N2560/06 ,  F01N2900/1606 ,  Y02A50/2325 ,  Y02T10/47

Abstract: A method for implementing particulate filter regeneration management is provided. The method includes determining a presumptive deviation between a particulate model and actual particulate level conditions of the particulate filter. The presumptive deviation is determined from identification of an occurrence of extended parking, a passive regeneration, residual particulates, and a pressure signal. Each of the extended parking, passive regeneration, residual particulate, and pressure signal is specified by a respective particulate model deviation type. The method also includes selectively controlling current to at least one zone of a plurality of zones of an electric heater to initiate a regeneration event based on the presumptive deviation, and estimating the particulate level in the particulate filter once the regeneration event is complete.

Abstract translation: 提供了一种实现微粒过滤器再生管理的方法。 该方法包括确定颗粒模型与颗粒过滤器的实际颗粒物水平条件之间的推定偏差。 推测偏差是通过对扩展停车，被动再生，残留颗粒和压力信号的发生的识别来确定的。 每个扩展停车，被动再生，残留颗粒和压力信号由相应的颗粒模型偏差类型指定。 该方法还包括选择性地将电流控制到电加热器的多个区域中的至少一个区域，以基于推定偏差来启动再生事件，并且一旦再生事件完成，则估计微粒过滤器中的微粒水平。