System and method for controlling an engine based on ammonia storage in multiple selective catalytic reduction catalysts
Patent
·
OSTI ID:1226452
A system according to the principles of the present disclosure includes a storage estimation module and an air/fuel ratio control module. The storage estimation module estimates a first amount of ammonia stored in a first selective catalytic reduction (SCR) catalyst and estimates a second amount of ammonia stored in a second SCR catalyst. The air/fuel ratio control module controls an air/fuel ratio of an engine based on the first amount, the second amount, and a temperature of a substrate disposed in the second SCR catalyst.
- Research Organization:
- GM Global Technology Operations LLC, Detroit, MI (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- EE0003379
- Assignee:
- GM Global Technology Operations LLC
- Patent Number(s):
- 9,188,071
- Application Number:
- 13/471,861
- OSTI ID:
- 1226452
- Country of Publication:
- United States
- Language:
- English
Similar Records
System and method for determining an ammonia generation rate in a three-way catalyst
System and method for controlling ammonia levels in a selective catalytic reduction catalyst using a nitrogen oxide sensor
Catalyst Ammonia Storage Measurements Using Radio Frequency Sensing1
Patent
·
2014
·
OSTI ID:1166775
System and method for controlling ammonia levels in a selective catalytic reduction catalyst using a nitrogen oxide sensor
Patent
·
2017
·
OSTI ID:1372664
Catalyst Ammonia Storage Measurements Using Radio Frequency Sensing1
Journal Article
·
2018
· Journal of Engineering for Gas Turbines and Power
·
OSTI ID:1614026