Control apparatus for internal combustion engine
AssigneeHonda Motor Co., Ltd.
InventorsJunya Iino, Yasuaki Asaki, Mikio Fujiwara, Jiro Takagi, Katsumi Noguchi
Life of this patent
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Abstract
A control apparatus for an internal combustion engine having a plurality of cylinders and a cylinder halting mechanism. The cylinder halting mechanism switches between an all-cylinder operation in which all of the plurality of cylinders are operated and a partial-cylinder operation in which at least one of the plurality of cylinders is halted. Operating parameters of the engine and the atmospheric pressure are detected. The cylinder halting mechanism is controlled to perform the all-cylinder operation or the partial-cylinder operation according to the operating parameters of the engine and the detected atmospheric pressure.
Claims9
A control apparatus for an internal combustion engine having a plurality of cylinders and switching means for switching between an all-cylinder operation in which all of said plurality of cylinders are operated and a partial-cylinder operation in which at least one of said plurality of cylinders is halted, said control apparatus comprising:
- operating parameter detecting means for detecting at least one operating parameter of said engine;
- instructing means for instructing said switching means to perform the all-cylinder operation or the partial-cylinder operation according to the at least one operating parameter;
- atmospheric pressure detecting means for detecting an atmospheric pressure;
- and
- inhibiting means for inhibiting the partial-cylinder operation when the detected atmospheric pressure is lower than a predetermined pressure.
A control method for an internal combustion engine having a plurality of cylinders and a switching mechanism for switching between an all-cylinder operation in which all of said plurality of cylinders are operated and a partial-cylinder operation in which at least one of said plurality of cylinders is halted, said control method comprising the steps of:
- a) detecting at least one operating parameter of said engine;
- b) instructing said switching mechanism to perform the all-cylinder operation or the partial-cylinder operation according to the at least one operating parameter;
- c) detecting an atmospheric pressure;
- and
- d) inhibiting the partial-cylinder operation when the detected atmospheric pressure is lower than a predetermined pressure.
A computer program for causing a computer to carry out a control method for an internal combustion engine having a plurality of cylinders and a switching mechanism for switching between an all-cylinder operation in which all of said plurality of cylinders are operated and a partial-cylinder operation in which at least one of said plurality of cylinders is halted, said control method comprising the steps of:
- a) detecting at least one operating parameter of said engine;
- b) instructing said switching mechanism to perform the all-cylinder operation or the partial-cylinder operation according to the at least one operating parameter;
- c) detecting an atmospheric pressure;
- and
- d) inhibiting the partial-cylinder operation when the detected atmospheric pressure is lower than a predetermined pressure.
Dependencies are inferred from the claim text.