Electronic engine control system

Details Electronic engine control system Electronic engine control system

1990-12-06

1992-07-14

Hart, Douglas

Power plants

Internal combustion engine with treatment or handling of...

Methods

60277, 60285, F01N 320

Patent

active

051292289

ABSTRACT:
An electronic engine control system includes a microprocessor, and a variety of sensors for sensing various conditions of the engine. An exhaust gas temperature sensor is mounted to an exhaust manifold to sense the temperature of an exhaust gas discharged from an engine cylinder. A catalytic converter is connected to the exhaust manifold and has a catalyst to clean the exhaust gas. A catalyst temperature sensor is mounted to the catalytic converter to sense the temperature of the catalyst. The microprocessor is operable to analyze information including the exhaust gas temperature and the catalyst temperature so as to determine whether combustion of an air-fuel mixture takes place during engine operation. If the mixture is not combusted, then the microprocessor signals injection valves to stop injection of fuel.

REFERENCES:
patent: 4023359 (1977-05-01), Masaki
patent: 4233811 (1980-11-01), Masaki
patent: 4656829 (1987-04-01), Creps

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