patent · US7597091
Air-fuel ratio control apparatus and method for an internal combustion engine
6 October 2009
Indexed reference — no copy held
This patent is cited by material in the archive, so it is indexed here by number, title and inventor. The archive holds no copy of its text.
Abstract
When an internal combustion engine including a plurality of cylinders is operating steadily, an index value relating to an actual hydrogen content in exhaust gas downstream of a portion where exhaust passages from the cylinders merge, and upstream of a catalyst is detected. When an index value relating to the actual hydrogen content in the exhaust gas is larger than a determination index value relating to a hydrogen content corresponding to a permissible limit of air-fuel rat...
Provenance
- Collection
- Cited prior art
- Original PDF
- patentimages.storage.googleapis.com →
- Filed
- 2008-06-13
- Source
- Google Patents bibliographic record
- Granted
- 2009-10-06
- Inventors
- Yusuke Suzuki; Yasushi Iwazaki; Toru Kidokoro; Hiroshi Sawada; Fumihiko Nakamura; Keiichiro Aoki; Toyota Motor Corp