Invention Grant
US09255510B2 Ammonia (NH3) storage control system and method based on a nitrogen oxide(NOx) sensor
有权
氨（NH3）储存控制系统和基于氮氧化物（NOx）传感器的方法
- Patent Title: Ammonia (NH3) storage control system and method based on a nitrogen oxide(NOx) sensor
- Patent Title (中): 氨（NH3）储存控制系统和基于氮氧化物（NOx）传感器的方法
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Application No.: US12400156Application Date: 2009-03-09
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Publication No.: US09255510B2Publication Date: 2016-02-09
- Inventor: Charles E. Solbrig , Ognyan N. Yanakiev
- Applicant: Charles E. Solbrig , Ognyan N. Yanakiev
- Applicant Address: US MI Detroit
- Assignee: GM Global Technology Operations LLC
- Current Assignee: GM Global Technology Operations LLC
- Current Assignee Address: US MI Detroit
- Main IPC: F01N3/00
- IPC: F01N3/00 ; F01N3/20 ; B01D53/90 ; B01D53/94 ; F02D41/02 ; F02D41/14
Abstract:
A control system includes an upstream nitrogen oxide (NOx) control module that increases an upstream NOx level based on an initial upstream NOx level in an exhaust system, and an ammonia (NH3) storage condition detection module that detects a NH3 storage condition based on a difference in a downstream NOx level before and after the upstream NOx level is increased. A method includes increasing an upstream NOx level based on an initial upstream NOx level in an exhaust system, and detecting an NH3 storage condition based on a difference in a downstream NOx level before and after the upstream NOx level is increased.
Public/Granted literature
- US20100223908A1 AMMONIA (NH3) STORAGE CONTROL SYSTEM AND METHOD BASED ON A NITROGEN OXIDE (NOx) SENSOR Public/Granted day:2010-09-09
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