Exhaust gas sensor output signal control system
CA 1063827 A · Owner: Ford Motor Company Of Canada · Inventors: Foote, Lawrence R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system for generating an output signal from an exhaust gas sensor which output signal is linear for variations in the air/fuel mixture. The measured signal can be used to control the air/fuel mixture at a desired value. The system includes two voltage dividers connected in parallel to a regulated voltage. One voltage divider includes a variable resistance type exhaust gas sensor and generates a signal voltage while the other voltage divider generates a reference voltage, the voltages being received at separate inputs of an amplifier the output of which is rendered linear with respect to changes in the air/fuel ratio of the combustion mixture by a feedback circuit.
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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 October 9, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 9, 1996.
- 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.