Dosing control systems and methods
US8413427B2 · kind B2 · utility
8Cited by
0References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 8, 2010 |
| Grant date | Apr 9, 2013 |
| Priority date | — |
| Expiry date | Apr 7, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A dosing control system for a vehicle includes a pump control module and an enabling/disabling module. The pump control module controls a pump that provides dosing agent to a dosing agent injector located upstream of a selective catalytic reduction (SCR) catalyst in an exhaust system. The enabling/disabling module disables the pump for a predetermined melting period after engine startup when the dosing agent is frozen and selectively activates the pump during the predetermined melting period to cool the dosing agent injector when a tip temperature of the dosing agent injector is greater than a predetermined temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.