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AssigneesUnisia Jecs Corporation, Nissan Motor Co., Ltd.
InventorsKenichi Machida, Toru Fuse, Takao Kawasaki
Estimating the term…
An engine with a charger, in which an intake passage is provided with a throttle valve which is electronically controlled to a target opening degree and the charger on the upstream side of the throttle valve, wherein a target supercharged pressure is corrected in a direction of eliminating a delay in the intake air amount based upon a difference between the target supercharged pressure of the charger and the supercharged pressure detected on the upstream side of the throttle valve, to thereby set a target supercharged pressure of the throttle valve based on the corrected target supercharged pressure. This suppresses a delay in the intake air amount caused by a delay in the change of the supercharged pressure during the transient period, makes it possible to accomplish acceleration/deceleration performance of good response, and suppresses a torque difference that occurs when the combustion system is changed over to the stratified charge combustion or to the homogeneous combustion.
An intake air control device of an engine with a charger, in which a throttle valve of which opening degree is electronically controlled to a target opening degree and the charger on the upstream side of said throttle valve are installed in an intake passage of the engine;
An intake air control device of an engine with a charger, in which a throttle valve of which opening degree is electronically controlled to a target opening degree and the charger on the upstream side of said throttle valve are installed in an intake passage of the engine;
An intake air control method of an engine with a charger, in which an intake passage of the engine is provided with a throttle valve which is electronically controlled to a target opening degree and the charger on the upstream side of said throttle valve, wherein a target supercharged pressure of said charger is set, the supercharged pressure on the upstream side of the throttle valve is detected, the target supercharged pressure is corrected in a direction of eliminating a delay in the intake air amount based upon a difference between the target supercharged pressure that has been set and the real supercharged pressure that is detected, and a target opening degree of said throttle valve is set based on the corrected target supercharged pressure.
Dependencies are inferred from the claim text.