US5163407A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for detecting fuel blending ratio
Assignee: Mitsubishi Motors Corp
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Filing: 1991-02-14
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Granted: 1992-11-17
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Expires: 2011-02-14
Abstract
Abstract A fuel blending ratio detecting method computes a control blending ratio on the basis of blending ratio information generated from a blending ratio sensor or air/fuel ratio information generated from an O 2 sensor, and when the engine is stopped, the control blending ratio detected at that time is stored in a backup memory as a memory blending ratio. At the time of re-starting the engine, the memory blending ratio can be used as the control blending ratio B for a predetermined limited period.
Inventors
- 👤 Masato Yoshida
- 👤 Takanoa Yokoyama
- 👤 Muneyoshi Nanba
- 👤 Yoshihiko Kato
- 👤 Kazumasa Iida
- 👤 Katsuhiko Miyamoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:53
CPC Classifications
F; F02; F02D; F02D19/00; F02D19/06; F02D19/08; F02D19/082; F02D19/085; F02D19/087; F02D45/00; F02D19/0663; F02D19/0673; F02D19/0678; F02D19/084; F02D19/088; F02D35/00; F02D35/0015; F02D41/00; F02D41/0025; G; G01; G01N; G01N33/00; G01N33/26; G01N33/28; G01N33/2829; F02D2200/00; F02D2200/02; F02D2200/06; F02D2200/0611; F02D2200/0612; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
A system for a fuel blending ratio detecting method, comprising: a blending ratio sensor for generating information regarding a blending ratio between gasoline and alcohol in fuel supplied to an engine; an O 2 sensor for generating information regarding an air/fuel ratio in exhaust gases from said engine; and control means for generating a control blending ratio computed on the basis of the blending ratio information from said blending ratio sensor or the air/fuel ratio information from said O 2 sensor, and detecting, when said engine is stopped, a stopped blending ratio detected at the time that said engine is stopped and storing said stopped blending ratio in a backup memory as a memory blending ratio, said memory blending ratio being read for use as said control blending ratio for a predetermined limited period at the time of re-starting said engine.
Claim 2
Independent Claim
141 words
A system for a fuel blending ratio detecting method, comprising: a blending ratio sensor for generating information regarding a blending ratio between gasoline and alcohol in fuel supplied to an engine; an O 2 sensor for generating information regarding an air/fuel ratio in exhaust gases from said engine; and control means for generating a control blending ratio computed on the basis of the blending ratio information from said blending ratio sensor or the air/fuel ratio information from said O 2 sensor, and detecting, when said engine is stopped, a stopped blending ratio detected at the time that said engine is stopped and storing said stopped blending ratio in a backup memory as a memory blending ratio, said memory blending ratio being read for use as said control blending ratio for a predetermined limited period at the time of re-starting said engine.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-11-17 | 1996-05-18 | 1996-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-11-17 | 2000-05-18 | 2000-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-11-17 | 2004-05-18 | 2004-11-17 | $7700.00 | Window Closed / Lapsed |