Fuel control apparatus for engine

Patent · Tue Sep 22 04:00:00 EDT 1987

OSTI ID:5831875

Wataya, S; Shimomura, S; Nishimura, Y

This patent describes a fuel control apparatus for an engine comprising: an air flow sensor for detecting and producing an output representing the intake air amount of the engine, a sensor for detecting and producing an output representing the operating state of the engine, a controller for calculating and producing an output representing the fuel supply amount in accordance with the output signals of the sensors to determine the optimum value, fuel injecting means controlled by the output signal of the controller for injector fuel to the intake passage of the engine, and an atmospheric pressure sensor for detecting the atmospheric pressure, wherein the controller in the operating range of the engine where the detected output of the air flow sensor does not exhibit the true value of the intake air amount due to the reverse-flow of the intake air of the engine, sets at least one upper limit value Qn of the intake air amount in response to the operating state of the engine. The upper limit value is corrected by the atmospheric pressure detected by the atmospheric pressure sensor.

• Assignee: Mitsubishi Denki Kabushiki Kaisha
• Patent Number(s): US 4694806
• OSTI ID: 5831875
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
AIR FLOW
ATMOSPHERIC PRESSURE
COMBUSTION CONTROL
CONTROL
CONTROL EQUIPMENT
CONTROL SYSTEMS
DESIGN
ENGINES
EQUIPMENT
FLOW REGULATORS
FLUID FLOW
FUEL INJECTION SYSTEMS
FUEL SYSTEMS
FUEL-AIR RATIO
GAS FLOW
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
MEASURING INSTRUMENTS
METERING
OPERATION
PRESSURE GAGES
PRESSURE MEASUREMENT
SIGNALS