发明授权
- 专利标题： Heat generation system for determining a selective catalytic reduction device efficiency
- 专利标题（中）： 用于确定选择性催化还原装置效率的发热系统
-
申请号： US13760558申请日： 2013-02-06
-
公开(公告)号： US09415345B2公开(公告)日： 2016-08-16
- 发明人: Timothy J. Holbert , Eric M. Sisco , Janean E. Kowalkowski
- 申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC
- 申请人地址： US MI Detroit
- 专利权人： GM GLOBAL TECHNOLOGY OPERATIONS LLC
- 当前专利权人： GM GLOBAL TECHNOLOGY OPERATIONS LLC
- 当前专利权人地址： US MI Detroit
- 代理机构： Cantor Colburn LLP
- 主分类号： F01N3/00
- IPC分类号： F01N3/00 ; B01D53/94 ; F01N3/20 ; F01N3/10 ; F01N11/00
摘要：
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.
公开/授权文献
信息查询
