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    CONTROL DEVICE AND CONTROL METHOD FOR INTERNAL COMBUSTION ENGINE
    1.
    发明申请
    CONTROL DEVICE AND CONTROL METHOD FOR INTERNAL COMBUSTION ENGINE 有权

    公开(公告)号：US20220403767A1

    公开(公告)日：2022-12-22

    申请号：US17749147

    申请日：2022-05-20

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Sohichi IMAI ,  Yuya YOSHIKAWA ,  Kazuhiro HASEGAWA ,  Yoshifumi MATSUDA ,  Masanao IDOGAWA ,  Takahiro UCHIDA ,  Yuki YABUSHITA

    IPC: F01N9/00 ,  F01N3/10 ,  F01N11/00 ,  F01N3/025

    Abstract: A control device for an internal combustion engine including an upstream cleaning device and a downstream cleaning device that are provided in an exhaust gas passage and a temperature sensor that detects a temperature of exhaust gas between the upstream cleaning device and the downstream cleaning device is provided. The control device includes a first temperature estimating unit configured to estimate a temperature of the downstream cleaning device from the temperature of exhaust gas detected by the temperature sensor and a second temperature estimating unit configured to estimate a temperature of the downstream cleaning device without using the temperature of exhaust gas detected by the temperature sensor. An abnormality determining process for the upstream cleaning device is performed when at least the temperature of the downstream cleaning device estimated by the second temperature estimating unit is equal to or greater than a predetermined threshold value.

    AIR-FUEL RATIO CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE
    2.
    发明申请
    AIR-FUEL RATIO CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE 有权
    用于内燃机的空燃比比控制装置

    公开(公告)号：US20160076474A1

    公开(公告)日：2016-03-17

    申请号：US14785030

    申请日：2014-03-28

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Yuya YOSHIKAWA ,  Tokiji ITO ,  Isao NAKAJIMA ,  Hiroaki TSUJI ,  Toshihiro KATO ,  Yoshihisa ODA ,  Masashi HAKARIYA ,  Masahide OKADA ,  Yoshifumi MATSUDA

    IPC: F02D41/14

    CPC classification number: F02D41/1454 ,  F02D41/0085 ,  F02D41/1441 ,  F02D41/1456 ,  F02D41/1495 ,  F02D41/2454 ,  F02D2041/1422

    Abstract: An air-fuel ratio control apparatus for an internal combustion engine is provided. A controller is programmed to perform correction amount guard control allowing adjustment of a correction amount by setting a limit on the correction amount when an appearance frequency of a state where an output value from a downstream sensor is leaner than a predetermined value is equal to or higher than a predetermined value. When a state where the output value from the downstream sensor is leaner than the predetermined value lasts for a duration equal to or longer than a predetermined time, an incorporation speed at which, during learning control, the correction amount for sub feedback control is incorporated into a learning value is set to a larger value that when the duration is shorter than the predetermined time, and performance of the correction amount guard control is suppressed until the learning control is completed.

    Abstract translation: 提供一种用于内燃机的空燃比控制装置。 控制器被编程为执行校正量保护控制，允许当来自下游传感器的输出值比预定值更稀的状态的出现频率等于或更高时，通过设置校正量的限制来调整校正量 超过预定值。 当来自下游传感器的输出值比预定值更精细的状态持续等于或长于预定时间的持续时间时，在学习控制期间将用于副反馈控制的校正量并入的并入速度 将学习值设定为较大的值，即当持续时间短于预定时间时，校正量保护控制的执行被抑制直到学习控制完成。

    FIXING STRUCTURE AND ELECTRICAL CONNECTION BOX
    3.
    发明申请
    FIXING STRUCTURE AND ELECTRICAL CONNECTION BOX 审中-公开

    公开(公告)号：US20180102635A1

    公开(公告)日：2018-04-12

    申请号：US15722024

    申请日：2017-10-02

    Applicant: Yazaki Corporation ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Hiroki TASHIRO ,  Nobutaka KANEKO ,  Fumiyoshi OHASHI ,  Kouji YONEZU ,  Yuya YOSHIKAWA

    IPC: H02G3/08 ,  B60R16/02

    CPC classification number: H02G3/08 ,  B60R16/02 ,  B60R16/0238 ,  H02G3/10

    Abstract: A fixing structure includes an attaching portion, a nut, and a spacer. The attaching portion has an attaching hole through which an attaching bolt provided to a vehicle body is inserted. The nut fixes the attaching portion to the vehicle body by being tightened to the attaching bolt with a washer interposed between the nut and the attaching portion. The spacer is disposed between an inner circumferential surface of the attaching hole and an outer circumferential surface of the attaching bolt, and is in contact with the vehicle body and the washer in an axial direction of the attaching bolt in a state where the attaching bolt and the nut are tightened. The spacer has an opening on a cylindrical side surface thereof and is capable of rotating around the axial direction of the attaching bolt in a state where the attaching bolt is inserted into the opening.

    CONTROLLER AND CONTROL METHOD FOR INTERNAL COMBUSTION ENGINE
    4.
    发明申请
    CONTROLLER AND CONTROL METHOD FOR INTERNAL COMBUSTION ENGINE 审中-公开

    公开(公告)号：US20190170108A1

    公开(公告)日：2019-06-06

    申请号：US16152036

    申请日：2018-10-04

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Yuya YOSHIKAWA ,  lsao NAKAJIMA ,  Akihiro KATAYAMA ,  Ryo SUZUKI ,  Sohichi IMAI ,  Eiichiro KIDO

    IPC: F02P5/15

    Abstract: A controller learns the degree of variation in the injection amount of fuel injection valves provided for respective cylinders when the fuel injection valves are operated to control the air-fuel ratios of the respective cylinders to be equal to each other. A first advancement requesting process causes the request for the ignition timing to be more advanced when the degree of variation is great than when the degree of variation is small. A second advancement requesting process causes the request for the ignition timing to be more advanced when the torque fluctuation amount of the internal combustion engine is than when the torque fluctuation amount is small. The ignition control process controls the ignition timing in accordance with the request of the more advanced one of the first advancement requesting process and the second advancement requesting process.

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