公开(公告)号：US09091194B2

公开(公告)日：2015-07-28

申请号：US13959029

申请日：2013-08-05

Applicant: GM Global Technology Operations LLC

Inventor： Raffaello Ardanese ,  Justin Adam Shetney ,  James M. Perrin ,  Paul Jasinkiewicz

IPC: F01N3/20 ,  F01N9/00 ,  F01N11/00 ,  F01N3/10 ,  F01N13/00

CPC classification number: F01N3/208 ,  F01N3/106 ,  F01N9/005 ,  F01N9/007 ,  F01N11/005 ,  F01N13/009 ,  F01N2330/06 ,  F01N2370/04 ,  F01N2550/00 ,  F01N2560/06 ,  F01N2560/14 ,  F01N2610/02 ,  F01N2900/0412 ,  F01N2900/0416 ,  F01N2900/1404 ,  F01N2900/1602 ,  F01N2900/1616 ,  F01N2900/1622 ,  Y02T10/24

Abstract: An exhaust gas treatment system includes a SCR device that stores a reductant that reacts with the NOx emissions and a reductant supply system to inject the reductant according to a reductant load model. At least one temperature sensor or model generates a temperature signal indicating an SCR temperature of the SCR device. The exhaust gas treatment system further includes a control module in electrical communication with the reductant supply system. The control module is configured to determine an amount of reductant that slips from the SCR device based on the at least one temperature signal and the rate of change of the SCR temperature. The control module further determines a correction factor based on the amount of slipped reductant to modify the reductant load model.

Abstract translation: 排气处理系统包括：SCR装置，其存储与NOx排放物反应的还原剂和还原剂供给系统，以根据还原剂负荷模型注入还原剂。 至少一个温度传感器或模型产生指示SCR装置的SCR温度的温度信号。 废气处理系统还包括与还原剂供应系统电连通的控制模块。 控制模块被配置为基于至少一个温度信号和SCR温度的变化率来确定从SCR装置滑落的还原剂的量。 控制模块还基于滑动的还原剂的量来修正还原剂负载模型来确定校正因子。

公开(公告)号：US20150033704A1

公开(公告)日：2015-02-05

申请号：US13959029

申请日：2013-08-05

Applicant: GM Global Technology Operations LLC

Inventor： Raffaello Ardanese ,  Justin Adam Shetney ,  James M. Perrin ,  Paul Jasinkiewicz

IPC: F01N3/20

CPC classification number: F01N3/208 ,  F01N3/106 ,  F01N9/005 ,  F01N9/007 ,  F01N11/005 ,  F01N13/009 ,  F01N2330/06 ,  F01N2370/04 ,  F01N2550/00 ,  F01N2560/06 ,  F01N2560/14 ,  F01N2610/02 ,  F01N2900/0412 ,  F01N2900/0416 ,  F01N2900/1404 ,  F01N2900/1602 ,  F01N2900/1616 ,  F01N2900/1622 ,  Y02T10/24

Abstract: An exhaust gas treatment system includes a SCR device that stores a reductant that reacts with the NOx emissions and a reductant supply system to inject the reductant according to a reductant load model. At least one temperature sensor or model generates a temperature signal indicating an SCR temperature of the SCR device. The exhaust gas treatment system further includes a control module in electrical communication with the reductant supply system. The control module is configured to determine an amount of reductant that slips from the SCR device based on the at least one temperature signal and the rate of change of the SCR temperature. The control module further determines a correction factor based on the amount of slipped reductant to modify the reductant load model.

Abstract translation: 排气处理系统包括：SCR装置，其存储与NOx排放物反应的还原剂和还原剂供给系统，以根据还原剂负荷模型注入还原剂。 至少一个温度传感器或模型产生指示SCR装置的SCR温度的温度信号。 废气处理系统还包括与还原剂供应系统电连通的控制模块。 控制模块被配置为基于至少一个温度信号和SCR温度的变化率来确定从SCR装置滑落的还原剂的量。 控制模块还基于滑动的还原剂的量来修正还原剂负载模型来确定校正因子。