Control of an internal combustion engine in transient operating mode
AssigneeHitachi Automotive Systems, Ltd.
InventorsNaoki Yoneya, Takashi Okamoto
Life of this patent
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Abstract
The present invention provides a method for avoiding knocking in an internal combustions engine, preferably in a gasoline engine with a high compression ratio and a variable valve train which is able to perform EIVC, by injecting a non-combustible fluid into the intake port and/or in the cylinder during a transient operating mode.
Claims15
A method for controlling an internal combustion engine with at least one cylinder, at least one non-combustible fluid injector configured to inject a non-combustible fluid into the internal combustion engine and at least one controller,
- comprising controlling the injection device to inject the non-combustible fluid into the internal combustion engine when the internal combustion engine operates in a transient operating mode, and
- detecting and/or predicting the start and the duration of the transient operating mode, and activating the injector to inject non-combustible fluid when the start of the transient operating mode is determined and/or at the predicted start of the transient operating mode.
A control device for an internal combustion engine with at least one cylinder and at least one non-combustible fluid injector configured to inject a non-combustible fluid into the internal combustion engine, wherein the control device is configured to:
- control the injection device to inject the non-combustible fluid into the internal combustion engine when the internal combustion engine operates in a transient operating mode;
- detect and/or predict the start and the duration of the transient operating mode;
- and
- activate the injector to inject non-combustible fluid when the start of the transient operating mode is determined and/or at the predicted start of the transient operating mode.
A non-transitory computer program product operable for implementing a method for controlling an internal combustion engine with at least one cylinder, at least one non-combustible fluid injector configured to inject a non-combustible fluid into the internal combustion engine and at least one controller, the computer program product comprising a non-transitory storage medium executable by a processor to perform the program steps of:
- controlling the injection device to inject the non-combustible fluid into the internal combustion engine when the internal combustion engine operates in a transient operating mode, and
- detecting and/or predicting the start and the duration of the transient operating mode, and activating the injector to inject non-combustible fluid when the start of the transient operating mode is determined and/or at the predicted start of the transient operating mode.
Dependencies are inferred from the claim text.