Method of compensating output from oxygen concentration sensor of internal combustion engine

Patent · Tue Aug 16 04:00:00 EDT 1988

OSTI ID:6732531

Mieno, T; Nakajima, T; Okada, Y; Oono, N

A method is described of compensating the level of an output signal from an oxygen concentration sensor which comprises a portion of an internal combustion engine air/fuel ratio control system, the oxygen concentration sensor being disposed within the exhaust system of the internal combustion engine for producing an output signal varying in proportion to the concentration of oxygen in exhaust gas from the engine. The method consists of the steps of sensing an operating temperature of the engine, executing compensation of a level of the oxygen concentration sensor output signal in accordance with a result of the temperature sensing step, and utilizing the output level produced by the compensating step as the detected value of oxygen concentration that is employed in controlling the air/fuel ratio of the mixture to be supplied to the engine.

• Assignee: Honda Giken Kogyo Kabushiki Kaisha, Tokyo
• Patent Number(s): US 4763628
• OSTI ID: 6732531
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
CONTROL SYSTEMS
CORRECTIONS
DETECTION
ELECTRONIC CIRCUITS
ENGINES
ENRICHMENT
EXHAUST SYSTEMS
FUEL SYSTEMS
FUEL-AIR RATIO
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
LEVELS
MEASURING INSTRUMENTS
METERING
METERS
OXYGEN ENRICHMENT
PULSE CIRCUITS
SIGNAL CONDITIONERS