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    INTERNAL COMBUSTION ENGINE AND CONTROL METHOD THEREOF
    1.
    发明公开
    INTERNAL COMBUSTION ENGINE AND CONTROL METHOD THEREOF 有权
    VERBRENNUNGSMOTOR UND STEUERUNGSVERFAHRENDAFÜR

    公开(公告)号：EP2857661A1

    公开(公告)日：2015-04-08

    申请号：EP13797518.1

    申请日：2013-05-20

    申请人： Isuzu Motors, Ltd.

    发明人： TAKAO,Takafumi ,  HASHIMOTO,Hirofumi ,  IIMURA,Sousuke ,  HIRANO,Syuuichi

    IPC分类号： F02D23/00 ,  F02B37/00 ,  F02B37/12 ,  F02B37/18 ,  F02B37/24 ,  F02B39/16 ,  F02D43/00 ,  F02D45/00

    CPC分类号： F02B37/22 ,  F02B37/16 ,  F02B37/18 ,  F02B37/24 ,  F02B2037/125 ,  F02D23/00 ,  F02D41/0007 ,  F02D41/12 ,  F02D2200/0406 ,  F02D2200/101 ,  Y02T10/144

    摘要： An ECU 20 is provided with a surge avoidance unit (process) S10 configured to determine whether or not a compressor 5b of a turbocharger 5 enters a surging state during vehicle deceleration, and when the compressor 5b is determined to enter the surging state, acquires a first target opening degree TAn of a nozzle vane 5c in a turbine 5a of a turbocharger 5 based on an operation state and a first opening map M1 as a surge avoidance control, controls the nozzle vane 5c to a surge avoiding first target opening degree TAx if the first target opening degree TAn is smaller than a predetermined surge avoiding first target opening degree TAx, and controls the nozzle vane 5c to the first target opening degree TAn if the first target opening degree TAn is not less than the surge avoiding first target opening degree TAx. Therefore, it is possible to avoid the surging state of the compressor 5b.

    摘要翻译： ECU20设置有避开单元（处理）S10，其被配置为确定涡轮增压器5的压缩机5b是否在车辆减速期间进入喘振状态，并且当压缩机5b被确定为进入喘振状态时，获取 基于操作状态的涡轮增压器5的涡轮5a中的喷嘴叶片5c的第一目标开度TAn和作为浪涌回避控制的第一开度图M1将喷嘴叶片5c控制为避免浪涌的第一目标开度TAx，如果 第一目标开度TAn小于预定浪涌避免第一目标开度TAx，并且如果第一目标开度TAn不小于喘振避免的第一目标开度，则将喷嘴叶片5c控制为第一目标开度TAn 税。 因此，可以避免压缩机5b的喘振状态。