Method for feedback controlling the air and fuel ratio of the mixture supplied to an internal combustion engine
CA 1293554 C · Owner: Amano, Matsuo · Inventors: Sato, Nobuo; Ishii, Junichi; Amano, Matsuo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract:, The present invention relates to a method for feedback controlling air-fuel ratio of the mixture supplied to an internal combustion engine having a pluraltiy of cylinders. The method comprises the steps of detecting, respective air-fuel ratios of the exhaust gas from the respective cylinders with an air-fuel ratio sensor having a substantially linear output characteristic calculating, an average air-fuel ratio by using the latest detected air-fuel ratios of the respective cylinders and determining a fundamental feedback correction coefficient .beta.0 for a cylinder of which air fuel ratio is feedback controlled next. The method further includes the steps of retrieving a learning …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted December 24, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 24, 2008.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.