Method and system for gasoline particulate filter operations
US10066575B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 15, 2016 |
| Grant date | Sep 4, 2018 |
| Priority date | — |
| Expiry date | Sep 3, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Methods and systems are provided for optimal operation of a gasoline particulate filter coupled to an engine exhaust system. Based on engine operating conditions, a target soot level on the GPF may be determined, and one or more engine operating parameters may be adjusted to maintain the actual GPF soot level at the target level. In one example, if the actual GPF soot level is lower than the target level, one or more of a fuel injection timing and a fuel rail pressure may be adjusted to increase soot generation, and if the actual GPF soot level is higher than the target level, the GPF may be regenerated until the actual soot level reaches the target level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.