Air/fuel control system and method
US6138655A · kind A · utility
24Cited by
2References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 10, 1999 |
| Grant date | Oct 31, 2000 |
| Priority date | — |
| Expiry date | Nov 10, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An air/ratio control system and method for an internal combustion engine coupled to a fuel vapor recovery system simultaneously maps a difference between a desired air/fuel ratio and a measured air/fuel ratio to fueling errors and a purge vapor flow. This system and method maximizes the ability to purge the vapor recovery system while maintaining the ability to diagnose fuel errors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.