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    EGR SYSTEM FOR SUPERCHARGING ENGINE
    1.
    发明申请
    EGR SYSTEM FOR SUPERCHARGING ENGINE 审中-公开
    用于超级发动机的EGR系统

    公开(公告)号：US20170030305A1

    公开(公告)日：2017-02-02

    申请号：US15105870

    申请日：2014-10-30

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Satoshi SUGIYAMA

    IPC: F02M26/04 ,  F02D41/00 ,  F02D21/08 ,  F02D23/00 ,  F02B37/12 ,  F02B47/08

    CPC classification number: F02M26/04 ,  F01N5/04 ,  F02B37/12 ,  F02B47/08 ,  F02D9/04 ,  F02D21/08 ,  F02D23/00 ,  F02D41/0007 ,  F02D41/0047 ,  F02D41/0065 ,  F02D41/0072 ,  F02M26/06 ,  F02M26/07 ,  F02M26/10 ,  F02M26/19 ,  F02M26/21 ,  F02M26/23 ,  Y02T10/144 ,  Y02T10/47

    Abstract: In an EGR system that introduces an EGR gas to a vicinity of an inlet of a compressor in an intake passage, prevention of erosion of an impeller by condensed water generated in an EGR passage, and restraint of pressure loss of intake air are made compatible. An introduction port for an EGR gas formed in a wall surface of the intake passage in a vicinity of the inlet of the compressor and an exhaust passage are connected by the EGR passage. The EGR passage is provided with an EGR valve, and an exhaust throttle valve is provided downstream of a position where the EGR passage is connected in the exhaust passage. By a control device that controls the EGR valve and the exhaust throttle valve, respective opening degrees of the EGR valve and the exhaust throttle valve are controlled in accordance with a flow rate of fresh air that flows to the compressor, and a velocity of the EGR gas that flows out into the intake passage from the introduction port for the EGR gas is changed so that the EGR gas flows toward a center portion of the impeller of the compressor.

    Abstract translation: 在将EGR气体引入到进气通路中的压缩机入口附近的EGR系统中，防止在EGR通路中产生的冷凝水对叶轮的侵蚀和进气的压力损失的抑制被兼容。 用于在压缩机的入口附近形成在进气通道的壁表面中的EGR气体的引入口和排气通道通过EGR通道连接。 EGR通道设置有EGR阀，并且排气节流阀设置在EGR通道连接在排气通道中的位置的下游。 通过控制EGR阀和排气节流阀的控制装置，根据流到压缩机的新鲜空气的流量和EGR的速度来控制EGR阀和排气节流阀的各自的开度 改变从EGR气体导入口流入进气通路的气体，使得EGR气体朝向压缩机的叶轮的中心部分流动。

    INTERNAL COMBUSTION ENGINE SYSTEM
    2.
    发明申请
    INTERNAL COMBUSTION ENGINE SYSTEM 审中-公开
    内燃机系统

    公开(公告)号：US20160061102A1

    公开(公告)日：2016-03-03

    申请号：US14840261

    申请日：2015-08-31

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Satoshi SUGIYAMA

    IPC: F02B37/04 ,  F02D9/02 ,  F02B37/16 ,  F02B39/10

    CPC classification number: F02B37/04 ,  F02B33/40 ,  F02B37/16 ,  F02B39/10 ,  F02B2037/122 ,  F02B2037/125 ,  F02D23/00 ,  F02D41/0007 ,  F02D41/12 ,  F02D2009/023 ,  F02D2200/602 ,  Y02T10/144

    Abstract: An internal combustion engine system includes: a turbosupercharger having a turbo-compressor arranged in a first intake passage; a throttle valve provided on a downstream side relative to the turbo-compressor; a second intake passage that bypasses the turbo-compressor; and an electric supercharger in which a compressor wheel disposed in the second intake passage is driven by an electric motor. When a request to decelerate the internal combustion engine is issued during driving of the compressor wheel by the electric motor, driving of the compressor wheel by the electric motor is stopped before the throttle valve starts a valve closing operation, and the intake bypass valve opens at or after a time at which a valve closing operation of the throttle valve starts.

    Abstract translation: 内燃机系统包括：涡轮增压器，具有布置在第一进气通道中的涡轮压缩机; 设置在相对于涡轮压缩机的下游侧的节气门; 绕过涡轮压缩机的第二进气通道; 以及电动增压器，其中设置在第二进气通道中的压缩机叶轮由电动机驱动。 当通过电动机驱动压缩机叶轮期间发出减速内燃机的请求时，在节流阀开始关闭动作之前，由电动机驱动压缩机叶轮停止，并且进气旁通阀打开 或者在节气门的关阀操作开始的时间之后。

    CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE
    3.
    发明申请
    CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE 审中-公开

    公开(公告)号：US20180128192A1

    公开(公告)日：2018-05-10

    申请号：US15723370

    申请日：2017-10-03

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Satoshi SUGIYAMA

    IPC: F02D41/00 ,  F02M26/02 ,  F02M26/64 ,  F02D9/02 ,  F02D13/02

    Abstract: An internal combustion engine includes a throttle valve, an EGR passage, an EGR valve, a valve mechanism that adjusts opening and closing characteristics of an intake valve or an exhaust valve of the internal combustion engine, and a controller that controls the throttle valve, the EGR valve and the valve mechanism, based on request torque that is requested of the internal combustion engine. The controller is configured to execute evacuation traveling control that operates the throttle valve to fully open, calculates a target intake air flow amount for achieving the request torque based on an effective opening area of the EGR valve which is stuck, and operates the valve mechanism in accordance with the target intake air flow amount, in at least one time period while the request torque is reducing when the EGR valve is stuck in an open state.

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