Fuel injection control apparatus for an internal combustion engine
First Claim
1. A fuel injection control apparatus for an internal combustion engine, comprising:
- fuel injecting means for supplying fuel to the engine in response to a fuel injection pulse applied thereto;
sensing means for detecting fundamental parameters representing the operational condition of the engine to produce signals corresponding to detected amount of the parameters, the fundamental parameters including at least an acceleration or deceleration required to be effected by the engine; and
controlling means, including a microprocessor for executing a predetermined processing in response to the signals of said sensing means, for producing a basic fuel injection pulse, a pulse width of which is determined based on the fundamental parameters, and correcting the pulse width of the basic fuel injection pulse in accordance with the degree of the acceleration or deceleration required thereby to provide the fuel injection pulse to said fuel injecting means,characterized in thatthe microprocessor is provided with membership functions varying with respect to the acceleration or deceleration which determine a correction coefficient for correcting the basic fuel injection pulse on the basis of the degree of the acceleration or deceleration required in accordance with fuzzy reasoning using the membership functions.
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Abstract
A fuel injection control apparatus for an internal combustion engine has a controller, which includes a microprocessor for executing a predetermined processing in response to fundamental parameters representing the operational condition of the engine, produces a basic fuel injection pulse on the basis of a suction air quantity and a rotational speed of the engine and corrects the basic fuel injection pulse in accordance with the degree of acceleration or deceleration required, thereby to provide a fuel injection pulse applied to a fuel injector. The microprocessor is provided with membership functions varying with respect to acceleration or deceleration and determines a correction coefficient for correcting the basic fuel injection pulse on the basis of the degree of acceleration or deceleration required in accordance with fuzzy reasoning using the membership functions.
17 Citations
9 Claims
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1. A fuel injection control apparatus for an internal combustion engine, comprising:
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fuel injecting means for supplying fuel to the engine in response to a fuel injection pulse applied thereto; sensing means for detecting fundamental parameters representing the operational condition of the engine to produce signals corresponding to detected amount of the parameters, the fundamental parameters including at least an acceleration or deceleration required to be effected by the engine; and controlling means, including a microprocessor for executing a predetermined processing in response to the signals of said sensing means, for producing a basic fuel injection pulse, a pulse width of which is determined based on the fundamental parameters, and correcting the pulse width of the basic fuel injection pulse in accordance with the degree of the acceleration or deceleration required thereby to provide the fuel injection pulse to said fuel injecting means, characterized in that the microprocessor is provided with membership functions varying with respect to the acceleration or deceleration which determine a correction coefficient for correcting the basic fuel injection pulse on the basis of the degree of the acceleration or deceleration required in accordance with fuzzy reasoning using the membership functions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification