Fuel supply control method for internal combustion engines after starting

Patent · Tue Oct 18 04:00:00 EDT 1988

OSTI ID:6529433

Fujimura, A; Wazaki, Y

This patent describes a method of controlling the supply of fuel to an internal combustion engine after starting thereof, including the steps of increasing a quantity of fuel to be supplied to the engine by the use of fuel increment after the starting of the engine, counting a period of time which elapses from the time a sensor for sensing oxygen concentration in exhaust gases from the engine has internal resistance thereof decreased below a predetermined value after the starting of the engine, terminating the increase of the quantity of fuel to be supplied to the engine and simultaneously starting calculating a value of a correction value in response to the oxygen concentration sensed by the sensor when the period of time counted exceeds a predetermined period of time, and correcting the quantity of fuel to be supplied to the engine by means of the correction value calculated, the improvement comprising the steps of: (a) sensing a temperature in an intake system of the engine; and (b) increasing the predetermined period of time as the temperature in the intake system sensed is higher.

• Assignee: Honda Giken Kogyo Kabushiki Kaisha, Tokyo
• Patent Number(s): US 4777923
• OSTI ID: 6529433
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
99 GENERAL AND MISCELLANEOUS
990220 -- Computers
Computerized Models
& Computer Programs-- (1987-1989)
COMPUTERIZED CONTROL SYSTEMS
CONTROL SYSTEMS
CORRECTIONS
DETECTION
ELEMENTS
ENGINES
EXHAUST GASES
EXHAUST SYSTEMS
FLUIDS
FUEL SYSTEMS
FUEL-AIR RATIO
GASEOUS WASTES
GASES
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
MEASURING INSTRUMENTS
METERING
METERS
NONMETALS
OPERATION
OXYGEN
WASTES