Apparatus and method for controlling internal combustion engine
AssigneesToyota Jidosha Kabushiki Kaisha, Denso Corporation
InventorsKiyoo Hirose, Hiroshi Morita
Life of this patent
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Abstract
An electronic control unit increases the maximum lift amount or the working angle of an intake valve if it is determined that the operation for stopping an engine is performed. The electronic control unit stops fuel injection or ignition before increasing the maximum lift amount or the working angle.
Claims11
A control apparatus for an internal combustion engine including a variable valve mechanism that can change a maximum lift amount of an intake valve, comprising:
- a determining device that determines whether an operation for stopping the engine is performed;
- a changing device that controls the variable valve mechanism so as to increase the maximum lift amount of the intake valve if the determining device determines that the operation for stopping the engine is performed;
- and
- a stop device that stops at least one of fuel injection and ignition before the changing device changes the maximum lift amount.
A control apparatus for an internal combustion engine including a variable valve mechanism that can change a working angle of an intake valve, comprising:
- a determining device that determines whether an operation for stopping the engine is performed;
- a changing device that controls the variable valve mechanism so as to increase the working angle of the intake valve if the determining device determines that the operation for stopping the engine is performed;
- and
- a stop device that stops at least one of fuel injection and ignition before the changing device changes the working angle.
A method for controlling an internal combustion engine, comprising:
- determining whether an operation for stopping an engine is performed;
- stopping at least one of fuel injection and ignition if it is determined that the operation for stopping the engine is performed;
- and
- increasing a maximum lift amount of an intake valve after stopping the at least one of fuel injection and ignition.
A method for controlling an internal combustion engine, comprising:
- determining whether an operation for stopping an engine is performed;
- stopping at least one of fuel injection and ignition if it is determined that the operation for stopping the engine is performed;
- and
- increasing a working angle of an intake valve after stopping the at least one of fuel injection and ignition.
Dependencies are inferred from the claim text.