Temperature control system and method for particulate filter regeneration using a hydrocarbon injector
US8265852B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 13, 2009 |
| Grant date | Sep 11, 2012 |
| Priority date | — |
| Expiry date | Feb 8, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01N3/023
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A control system includes a first module, a fuel determination module, a temperature error correction module, and a hydrocarbon injection control module. The first module determines a temperature difference between a desired inlet temperature of a particulate filter (PF) and an outlet temperature of a first catalyst. The fuel determination module determines an uncorrected desired fuel value based on the temperature difference, an ambient temperature, and a mass flow of exhaust gas. The temperature error correction module generates a desired fuel value based on the uncorrected desired fuel value. The hydrocarbon injection control module controls a hydrocarbon injector based on the desired fuel value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.