System for controlling regeneration of an adsorber
US8474243B2 · kind B2 · utility
1Cited by
16References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 21, 2007 |
| Grant date | Jul 2, 2013 |
| Priority date | — |
| Expiry date | Sep 7, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01N3/0871
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A system, method, and software for determining an amount of reductant to be supplied to a NOx adsorber during a regeneration event is disclosed. A reductant calculation module is executable by an electronic control unit for calculating a quantity of reductant delivered which is required to periodically regenerate the adsorber by accumulating the reductant fuel delivered as a function of a total fuel quantity being supplied to the internal combustion engine by a fuel system and subtracting an amount of fuel required to achieve a stoichiometric air to fuel ratio at an inlet of the adsorber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.