Apparatus, system, and method for enhancing soot filter protection
US7500358B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 11, 2006 |
| Grant date | Mar 10, 2009 |
| Priority date | — |
| Expiry date | Mar 30, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
An apparatus, system, and method are disclosed for enhancing protection of a soot filter. The method enhances soot filter protection by interpreting a baseline regeneration scheme, estimating whether a set of current soot filter conditions indicate that a regeneration is occurring, and setting an engine operating indicator if an internal combustion engine is operating such that a threshold amount of soot is being generated. The method may continue with incrementing a first counter based on the baseline regeneration scheme and the engine operating indicator, and activating a regeneration request indicator when the first counter reaches a first threshold. The method may further include incrementing a second counter when the regeneration request indicator is active, where the incrementing value for the second counter is based on whether a regeneration is occurring. The method may further include deactivating the regeneration request indicator when the second counter reaches a second threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.