Method of indicating a basic air-fuel ratio condition of an internal combustion engine
Patent
·
OSTI ID:6465213
An average value of an air-fuel ratio correction signal, which is gradually increased or decreased in accordance with output of an exhaust gas sensor for detecting the concentration of a particular component in the exhaust gas, and which is utilized for controlling air-fuel ratio of the mixture supplied to an engine, is generated. Then, the generated average signal is compared with a plurality of predetermined values to discriminate a range in which the average signal is positioned among a plurality of ranges specified by the plurality of predetermined values. Thereafter a signal which represents the discriminated range is produced. This signal energizes an indicator to inform an operator of the basic air-fuel ratio condition of the engine.
- Assignee:
- Toyota Jidosha Kogyo K K (Japan)
- Patent Number(s):
- US 4357828
- OSTI ID:
- 6465213
- Country of Publication:
- United States
- Language:
- English
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