Fuel control system for engine
AssigneeMazda Motor Corporation
InventorsHideki Matsuoka, Iwao Utsumi, Isao Shibata
Life of this patent
Estimating the term…
Abstract
A fuel control system for an engine has a fuel injector which injects fuel into an intake passage of the engine. An airflow meter detects the amount of intake air of the engine. A controller controls the amount of fuel to be injected from the fuel injection means on the basis of a dulled value by dulling a present value of the output of the airflow meter so that the preceding value of the output of the airflow meter is reflected in the dulled value in a predetermined proportion. The degree of reflection of the preceding value of the output of the airflow meter in the dulled value is reduced when the relation between the value of the output of the airflow meter and the dulled value is inverted.
Claims8
A fuel control system for an engine comprising
- a fuel injection means which injects fuel into an intake passage of the engine,
- an intake air amount detecting means which detects the amount of intake air of the engine,
- a dulled value calculating means which calculates a dulled value by dulling a present value of the output of the intake air amount detecting means so that the preceding value of the output of the intake air amount detecting means is reflected in the dulled value in a predetermined proportion,
- a control means which controls the amount of fuel to be injected from the fuel injection means on the basis of the dulled value, and
- a correcting means which reduces the degree of reflection of the preceding value of the output of the intake air amount detecting means in the dulled value when a predetermined condition is satisfied during transient operating condition of the engine.
A fuel control system for an engine comprising
- a fuel injection means which injects fuel into an intake passage of the engine,
- an intake air amount detecting means which detects the amount of intake air of the engine,
- a dulled value calculating means which calculates a dulled value by dulling a present value of the output of the intake air amount detecting means so that the preceding value of the output of the intake air amount detecting means is reflected in the dulled value in a predetermined proportion,
- an interpolating means which calculates an interpolation value between the actual output of the intake air amount detecting means and the dulled value calculated by the dulled value calculating means, and
- a control means which controls the amount of fuel to be injected from the fuel injection means on the basis of the interpolation value calculated by the interpolating means.
Dependencies are inferred from the claim text.