Method for controlling the supercharge pressure in internal combustion engine
AssigneeHonda Giken Kogyo Kabushiki Kaisha
InventorsNobu Takahashi, Yasuyuki Sandou
Life of this patent
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Abstract
A method for controlling the supercharge pressure in an internal combustion engine having a mechanical supercharger which is connected to the crankshaft in the engine and in which the internal compression ratio of the supercharger can be varied. In the method, the internal compression ratio of the mechanical supercharge is varied on the basis of at least a preset supercharge pressure and an engine revolution rate. This ensures that the supercharge pressure can be matched with the internal compression ratio to prevent a pulsing, thereby preventing noise from being generated.
Claims9
A method for controlling the supercharge pressure in an internal combustion engine having a mechanical supercharger which is connected to a crankshaft in the engine, which supercharger is of a type having means for selectively varying an internal compression ratio of the supercharger, wherein the method includes the step of controlling a variation of the internal compression ratio of the mechanical supercharger on the basis of at least a preset supercharge pressure and an engine revolution rate.
A method for controlling the supercharge pressure in an internal combustion engine having a mechanical supercharger which is driven from a crankshaft in the engine, which supercharger is of a type having means for selectively varying the internal compression ratio of the supercharger, wherein the method includes the step of, upon varying the internal compression ratio of the mechanical supercharger from a low level to a high level in response a change in engine operating conditions, the internal compression ratio is increased after a state, which satisfies a condition for increasing the internal compression ratio, has been maintained for a predetermined time.
Dependencies are inferred from the claim text.