Fuel injection system for internal combustion engine

Patent · Tue Dec 16 04:00:00 EST 1986

OSTI ID:6924590

Onishi, A

A fuel injection control system is described for an internal combustion engine, comprising: starter means for initiating a start of the engines; injector means for introducing fuel into the engine; first detecting means for detecting air intake amount introduced into the engine; second detecting means for detecting engine speed; calculating means, connected to the first and second detecting means, for calculating a ratio of the air intake amount to the engine speed; means for calculating an amount of fuel to be injected in accordance with the calculated ratio; timer means for detecting a predetermined period from the start of the engine until stable idling is assured; means for compensating the calculated amount of fuel to be not less than an amount corresponding to a predetermined limit value of a fuel-related parameter during the period; and means for operating the injector means so that the compensated amount of fuel is injected into the engine.

• Assignee: Toyota Jidosha Kabushiki Kaisha, Toyota
• Patent Number(s): US 4628886
• OSTI ID: 6924590
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
AIR FLOW
COMPUTER CALCULATIONS
COMPUTERIZED CONTROL SYSTEMS
CONTROL SYSTEMS
ELECTRONIC CIRCUITS
ENGINES
FLOW RATE
FLOWMETERS
FLUID FLOW
FUEL INJECTION SYSTEMS
FUEL SYSTEMS
GAS FLOW
HEAT ENGINES
IGNITION SYSTEMS
INTERNAL COMBUSTION ENGINES
MEASURING INSTRUMENTS
METERS
START-UP
TIMING CIRCUITS
VELOCIMETERS
VELOCITY