Invention Grant
US09149801B2 Method and system for adapting a clean filter correction map for a selective catalyst reduction filter
有权
适用于选择性催化还原过滤器的清洁过滤器校正图的方法和系统
- Patent Title: Method and system for adapting a clean filter correction map for a selective catalyst reduction filter
- Patent Title (中): 适用于选择性催化还原过滤器的清洁过滤器校正图的方法和系统
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Application No.: US13919040Application Date: 2013-06-17
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Publication No.: US09149801B2Publication Date: 2015-10-06
- Inventor: Christopher Whitt , Thomas Larose, Jr. , Christopher C. Swoish , Joshua Clifford Bedford
- Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Applicant Address: US MI Detroit
- Assignee: GM Global Technology Operations LLC
- Current Assignee: GM Global Technology Operations LLC
- Current Assignee Address: US MI Detroit
- Agency: Quinn Law Group, PLLC
- Main IPC: B01D46/00
- IPC: B01D46/00 ; B01J38/00 ; B01J38/12 ; B01D53/94

Abstract:
A system and method for adapting the clean filter correction map for a selective catalyst reduction filter SCRF of an exhaust gas aftertreatment system are provided. The system may be in fluid communication with an engine of a vehicle. The system may include a first pressure sensor and a second pressure. A differential pressure module is in communication with the first pressure sensor and the second pressure sensor and configured to generate a delta pressure signal corresponding to a pressure drop between the first pressure sensor and the second pressure sensor. The system may also include a controller configured to determine a number of completed regeneration events of the SCRF; compare the number of completed regeneration events to an evaluation element; and enable an adaptation module by executing one of a first control action, a second control action, and a third control action.
Public/Granted literature
- US20140371054A1 METHOD AND SYSTEM FOR ADAPTING A CLEAN FILTER CORRECTION MAP FOR A SELECTIVE CATALYST REDUCTION FILTER Public/Granted day:2014-12-18
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