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    Control device for internal combustion engine
    1.
    发明授权
    Control device for internal combustion engine 有权

    公开(公告)号：US10087874B2

    公开(公告)日：2018-10-02

    申请号：US15534909

    申请日：2014-12-09

    Applicant: NISSAN MOTOR CO., LTD.

    Inventor： Ryo Uchida ,  Futoshi Yoshimura ,  Tomoyoshi Date ,  Rina Kamio

    IPC: F02D41/40 ,  F02B75/04

    Abstract: A control device for an internal combustion engine has a controller configured to control a fuel injection valve arranged to directly inject a fuel into a combustion chamber, and a variable compression ratio mechanism arranged to vary an upper dead center position of a piston, and thereby to vary a compression ratio of the internal combustion engine. The controller is configured to control a fuel cut by which the fuel injection from the fuel injection valve is stopped, when a predetermined fuel cut condition is satisfied during a traveling of a vehicle. The fuel injection from the fuel injection valve is restarted when a predetermined fuel cut recovery condition is satisfied during the fuel cut.

    Control method and control device for internal combustion engine
    4.
    发明授权
    Control method and control device for internal combustion engine 有权

    公开(公告)号：US11085393B2

    公开(公告)日：2021-08-10

    申请号：US16614923

    申请日：2017-05-24

    Applicant: NISSAN MOTOR CO., LTD.

    Inventor： Futoshi Yoshimura ,  Yoshihiko Iwabuchi

    IPC: F02B75/04 ,  F02D41/38 ,  F02D15/00 ,  F02D41/06 ,  F02M61/16

    Abstract: A control method for internal combustion engine with a fuel injection valve configured to directly inject fuel into a cylinder and an ignition plug configured to directly spark-ignite the fuel injected from the fuel injection valve includes comparing an actual behavior, which is an actual changing behavior of an engine revolution speed at an engine start, to a reference behavior set in advance, and switching from stratified combustion in which a fuel spray injected from the fuel injection valve and staying around the ignition plug is directly spark-ignited to homogeneous combustion in which a homogeneous air-fuel mixture is formed in a combustion chamber and the fuel is burned and increasing a mechanical compression ratio of the internal combustion engine as compared to the case where the actual behavior and the reference behavior match if the actual behavior is different from the reference behavior.

    Internal combustion engine control device and control method
    6.
    发明授权
    Internal combustion engine control device and control method 有权

    公开(公告)号：US10436144B2

    公开(公告)日：2019-10-08

    申请号：US15531221

    申请日：2014-11-27

    Applicant: NISSAN MOTOR CO., LTD.

    Inventor： Rina Kamio ,  Tomoyoshi Date ,  Daisuke Tanaka ,  Futoshi Yoshimura ,  Ryo Uchida

    IPC: F02D41/30 ,  F02D41/04 ,  F02D41/12 ,  F02D35/02

    Abstract: A control device for an internal combustion engine including an in-cylinder injection fuel injection valve, and a port injection fuel injection valve, has a controller that controls injection amount ratios of the in-cylinder injection fuel injection valve and the port injection fuel injection valve in accordance with a driving condition of the engine. A fuel cut is performed at a predetermined deceleration of the internal combustion engine. The injection amount ratio of the in-cylinder injection fuel injection valve is corrected to be decreased at a fuel cut recovery at which a fuel supply is restarted from the fuel cut state, during a predetermined period from the start of the recovery.

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