Predictive control of ammonia storage in a selective catalytic reduction device using connectivity information
US9803532B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 28, 2015 |
| Grant date | Oct 31, 2017 |
| Priority date | — |
| Expiry date | Jul 28, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A method for controlling a selective catalytic reduction device in an exhaust aftertreatment system of a vehicle includes monitoring vehicle connectivity information, and controlling ammonia storage in the selective catalytic reduction device based on the monitored vehicle connectivity information. Vehicle connectivity information is used to predict vehicle operating conditions along an estimated path of vehicle travel. The predicted vehicle operating conditions are used to predict profiles for vehicle exhaust gas parameters. Predicted profiles for exhaust gas parameters are used in determining ammonia storage setpoints for the selective catalytic reduction device. The ammonia storage setpoints are use in regulating an amount of ammonia producing dosing agent injected into the exhaust aftertreatment system, thereby controlling ammonia storage in the selective catalytic reduction device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.