Control for spark ignited internal combustion engine

Patent · Tue Jan 05 04:00:00 EST 1988

OSTI ID:5392448

Hillard, J C; Chan, A K.F.

This patent describes a control for a spark ignited internal combustion engine having at least one combustion chamber having a combustion cycle, means for producing timing pulses having a predetermined relationship to the engine cycle, a spark plug mounted for igniting an air-fuel mixture within the chamber, an ignition system responsive to a timed signal from the control for supplying an ignition voltage to the spark plug and a port for exhausting combustion gases from the chamber. The control comprises detector means for producing an electric signal proportional to the degree of the electrical conductivity of exhaust gases passing through the port, means for averaging such detector means signal over a predetermined number of ignition cycles to a generate an averaged detector means signal, and means responsive to such averaged detector means signal in successive ignition cycles and to such timing pulses for applying a timed signal to the ignition system to produce ignition timing near maximum engine efficiency without knock.

• Assignee: Champion Spark Plug Co., Toledo, OH
• Patent Number(s): US 4716874
• OSTI ID: 5392448
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330101* -- Internal Combustion Engines-- Spark-Ignition
COMBUSTION CHAMBERS
COMBUSTION CONTROL
CONTROL
CONTROL SYSTEMS
DUCTS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ENGINES
EXHAUST GASES
FLUIDS
FUEL INJECTION SYSTEMS
FUEL SYSTEMS
FUEL-AIR RATIO
GASEOUS WASTES
GASES
HEAT ENGINES
IGNITION
IGNITION SYSTEMS
INTERNAL COMBUSTION ENGINES
MEASURING INSTRUMENTS
METERING
METERS
PHYSICAL PROPERTIES
SIGNALS
SPARK IGNITION ENGINES
TIMING PROPERTIES
WASTES