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Control device for naturally aspirated gasoline engine

机译:自然吸气汽油机的控制装置

摘要

A control device includes an electronic control unit. During deceleration of the engine, when a temperature of a three-way catalyst is equal to or higher than a predetermined temperature and execution conditions of fuel cut processing are established, the electronic control unit executes first control for closing an exhaust shutoff valve, while fuel injection and ignition are continued. When the exhaust shutoff valve reaches the closed state in the first control, the electronic control unit executes second control for bringing the engine into an intake control state in which the intake throttle is closed and an EGR valve is in a predetermined open state. In the second control, the electronic control unit executes the fuel cut processing by stopping the ignition before the engine is brought into the intake control state and stopping the fuel injection after the engine is brought into the intake control state.
机译:控制装置包括电子控制单元。在发动机减速期间,当三效催化剂的温度等于或高于预定温度并且建立了燃料切断处理的执行条件时,电子控制单元执行第一控制以关闭排气截止阀,同时燃料继续喷射和点火。当在第一控制中排气截止阀达到关闭状态时,电子控制单元执行第二控制,以使发动机进入进气控制状态,在该状态下进气节气门关闭并且EGR阀处于预定的打开状态。在第二控制中,电子控制单元通过在发动机进入进气控制状态之前停止点火并在发动机进入进气控制状态之后停止燃料喷射来执行燃料切断处理。

著录项

  • 公开/公告号JP6436135B2

    专利类型

  • 公开/公告日2018-12-12

    原文格式PDF

  • 申请/专利权人 トヨタ自動車株式会社;

    申请/专利号JP20160139661

  • 发明设计人 伊藤 弘和;山口 雄士;三好 悠司;

    申请日2016-07-14

  • 分类号F02D45;F02D41/02;F02D41/22;F02D41/12;F02D21/08;F02D43;F01N3/20;F02P9;F02D9/02;F02D9/04;F01N3/24;

  • 国家 JP

  • 入库时间 2022-08-21 12:18:40

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