patent · US6742379
Intake air oxygen concentration sensor calibration device and method
1 June 2004
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
An intake air oxygen concentration sensor calibration device is provided with an oxygen concentration sensor that detects a concentration of oxygen contained in intake air, intake passageway pressure detection means, stable condition determination means that determines whether the intake passageway pressure is in a stable condition based on the amplitude of fluctuations in intake passageway pressure and a predetermined stable condition criterion value, calibration coefficient...
Provenance
- Collection
- Cited prior art
- Original PDF
- patentimages.storage.googleapis.com →
- Filed
- 2003-09-02
- Source
- Google Patents bibliographic record
- Granted
- 2004-06-01
- Inventors
- Takuji Matsubara; Mamoru Yoshioka; Toyota Motor Corp