公开(公告)号：US20200217266A1

公开(公告)日：2020-07-09

申请号：US16242675

申请日：2019-01-08

Applicant: GM Global Technology Operations LLC

Inventor： Eric M. Sisco ,  Douglas A. Kopp ,  Neil Anderson

IPC: F02D41/40 ,  F02M65/00 ,  F02D41/38

Abstract: A method of operating a fuel injector includes determining an actual energizing time correction value for a fuel injector at a first fuel rail pressure, calculating an extrapolated energizing time correction value by performing a mathematical calculation on the actual energizing time correction value, and controlling the operation of the fuel injector based on the actual energizing time correction value and the extrapolated energizing time correction value.

公开(公告)号：US10443471B2

公开(公告)日：2019-10-15

申请号：US15586801

申请日：2017-05-04

Applicant: GM Global Technology Operations LLC

Inventor： Sarah Funk ,  Eric M. Sisco ,  Jose Deleon

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

Abstract: Technical solutions are described for an emissions control system for a motor vehicle including an internal combustion engine. The emissions control system includes a reductant injector device, a selective catalytic reduction (SCR) device, and a controller. The controller determines a reductant energizing time for the reductant injector device based on one or more operating conditions of the SCR device. The controller further computes a diagnostic adaptation factor for the reductant energizing time based on an on-board diagnostic signal. The controller further inputs an amount of reductant into the SCR device by adjusting a reductant energizing time of the reductant injector device according to the diagnostic adaptation factor.

公开(公告)号：US20180320572A1

公开(公告)日：2018-11-08

申请号：US15586801

申请日：2017-05-04

Applicant: GM Global Technology Operations LLC

Inventor： Sarah Funk ,  Eric M. Sisco ,  Jose Deleon

IPC: F01N3/20 ,  F01N11/00

CPC classification number: F01N3/208 ,  F01N9/005 ,  F01N11/007 ,  F01N2610/02 ,  F01N2610/146 ,  F01N2900/0402 ,  F01N2900/08 ,  F01N2900/1402 ,  F01N2900/1821

Abstract: Technical solutions are described for an emissions control system for a motor vehicle including an internal combustion engine. The emissions control system includes a reductant injector device, a selective catalytic reduction (SCR) device, and a controller. The controller determines a reductant energizing time for the reductant injector device based on one or more operating conditions of the SCR device. The controller further computes a diagnostic adaptation factor for the reductant energizing time based on an on-board diagnostic signal. The controller further inputs an amount of reductant into the SCR device by adjusting a reductant energizing time of the reductant injector device according to the diagnostic adaptation factor.

公开(公告)号：US09415345B2

公开(公告)日：2016-08-16

申请号：US13760558

申请日：2013-02-06

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Timothy J. Holbert ,  Eric M. Sisco ,  Janean E. Kowalkowski

IPC: F01N3/00 ,  B01D53/94 ,  F01N3/20 ,  F01N3/10 ,  F01N11/00

CPC classification number: B01D53/9495 ,  B01D53/9409 ,  B01D53/9459 ,  B01D2251/2062 ,  B01D2251/208 ,  F01N3/106 ,  F01N3/208 ,  F01N11/00 ,  F01N2550/02 ,  F01N2560/026 ,  F01N2610/02 ,  F01N2610/03 ,  Y02A50/2325 ,  Y02T10/24 ,  Y02T10/47

Abstract: A control method and system for monitoring a selective catalytic reduction (“SCR”) device of an exhaust gas treatment system is disclosed. The method includes monitoring a plurality of operating conditions related to determining an efficiency of the SCR device and a SCR temperature. The method includes determining if each of the operating conditions are within a respective predetermined range and if the SCR temperature is below an operating temperature range. The method includes activating a hydrocarbon supply based on if each of the operating conditions are within the respective predetermined range and if the SCR temperature is below the operating temperature range. The hydrocarbon supply is located upstream of the SCR device to generate heat if activated. The method includes monitoring the SCR temperature to determine if the SCR device is operating within the operating temperature range.

Abstract translation: 公开了一种用于监测废气处理系统的选择性催化还原（SCR））装置的控制方法和系统。 该方法包括监视与确定SCR装置的效率和SCR温度相关的多个操作条件。 该方法包括确定每个操作条件是否在相应的预定范围内，以及如果SCR温度低于工作温度范围。 该方法包括基于每个操作条件是否在相应的预定范围内以及如果SCR温度低于工作温度范围激活烃供应。 碳氢化合物供应位于SCR装置的上游，以产生热量，如果被激活。 该方法包括监视SCR温度以确定SCR装置是否在工作温度范围内运行。

公开(公告)号：US20140219896A1

公开(公告)日：2014-08-07

申请号：US13760558

申请日：2013-02-06

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Timothy J. Holbert ,  Eric M. Sisco ,  Janean E. Kowalkowski

IPC: B01D53/94

CPC classification number: B01D53/9495 ,  B01D53/9409 ,  B01D53/9459 ,  B01D2251/2062 ,  B01D2251/208 ,  F01N3/106 ,  F01N3/208 ,  F01N11/00 ,  F01N2550/02 ,  F01N2560/026 ,  F01N2610/02 ,  F01N2610/03 ,  Y02A50/2325 ,  Y02T10/24 ,  Y02T10/47

Abstract: A control method and system for monitoring a selective catalytic reduction (“SCR”) device of an exhaust gas treatment system is disclosed. The method includes monitoring a plurality of operating conditions related to determining an efficiency of the SCR device and a SCR temperature. The method includes determining if each of the operating conditions are within a respective predetermined range and if the SCR temperature is below an operating temperature range. The method includes activating a hydrocarbon supply based on if each of the operating conditions are within the respective predetermined range and if the SCR temperature is below the operating temperature range. The hydrocarbon supply is located upstream of the SCR device to generate heat if activated. The method includes monitoring the SCR temperature to determine if the SCR device is operating within the operating temperature range.

Abstract translation: 公开了一种用于监测废气处理系统的选择性催化还原（SCR））装置的控制方法和系统。 该方法包括监视与确定SCR装置的效率和SCR温度相关的多个操作条件。 该方法包括确定每个操作条件是否在相应的预定范围内，以及如果SCR温度低于工作温度范围。 该方法包括基于每个操作条件是否在相应的预定范围内以及如果SCR温度低于工作温度范围激活烃供应。 碳氢化合物供应位于SCR装置的上游，以产生热量，如果被激活。 该方法包括监视SCR温度以确定SCR装置是否在工作温度范围内运行。