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    CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE
    1.
    发明申请
    CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE 审中-公开

    公开(公告)号：US20180306069A1

    公开(公告)日：2018-10-25

    申请号：US15914580

    申请日：2018-03-07

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Noriyasu ADACHI ,  Keisuke SASAKI ,  Shigehiro SUGIHIRA ,  Takayoshi KAWAI ,  Shinji SADAKANE ,  Hiroyuki SUGIHARA ,  Kaoru OHTSUKA

    IPC: F01L1/047

    Abstract: Provided is a control device for an internal combustion engine equipped with a cam switching device including a cam groove provided on the outer peripheral surface of a camshaft and an electromagnetic solenoid type actuator capable of protruding, toward the camshaft, an engagement pin that is engageable with the cam groove. The control device is configured, in causing the cam switching device to perform a cam switching operation, to perform energization of the actuator such that the engagement pin is seated on a forward outer peripheral surface, and to more lower, when an electric current (coil current) flowing through the actuator as a result of the energization is greater, an average electric voltage per unit time applied to the actuator in protruding the engagement pin toward the cam groove from the forward outer peripheral surface.

    CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE
    3.
    发明申请
    CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE 有权
    内燃机控制装置

    公开(公告)号：US20160348631A1

    公开(公告)日：2016-12-01

    申请号：US15161834

    申请日：2016-05-23

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Shinji SADAKANE

    IPC: F02P5/04 ,  F02D41/00

    CPC classification number: F02P5/045 ,  F02D41/0005 ,  F02D41/0007 ,  F02D41/005 ,  F02D41/0072 ,  F02D41/12 ,  F02D41/1454 ,  F02D41/3029 ,  F02D2041/0017 ,  Y02T10/42 ,  Y02T10/47

    Abstract: An internal combustion engine is provided with an EGR device and is configured to be capable of executing an operation based on a first air-fuel ratio and an operation based on a second air-fuel ratio leaner than the first air-fuel ratio. In a case where an ECU decreases the amount of air flowing into a combustion chamber and decreases an EGR rate in response to a predetermined torque reduction request for the internal combustion engine, the ECU performs the operation based on the first air-fuel ratio in a case where an immediately preceding EGR rate immediately before the torque reduction request is made is lower than a first threshold and performs a stratified combustion operation based on the second air-fuel ratio in a case where the immediately preceding EGR rate is equal to or higher than the first threshold.

    Abstract translation: 一种内燃机设置有EGR装置，并且被构造成能够基于第一空燃比和基于比第一空燃比稀少的第二空燃比的操作来执行操作。 在ECU减少流入燃烧室的空气量并响应于内燃机的预定转矩降低请求而降低EGR率的情况下，ECU基于第一空燃比进行操作 在紧急扭矩降低要求之前的紧接在前的EGR率低于第一阈值的情况下，在前一次EGR率等于或高于第二阈值的情况下，基于第二空燃比进行分层燃烧运转 第一个门槛。

    CONTROL SYSTEM OF MILLER CYCLE ENGINE AND METHOD OF CONTROLLING MILLER CYCLE ENGINE
    7.
    发明申请
    CONTROL SYSTEM OF MILLER CYCLE ENGINE AND METHOD OF CONTROLLING MILLER CYCLE ENGINE 审中-公开

    公开(公告)号：US20200072135A1

    公开(公告)日：2020-03-05

    申请号：US16546777

    申请日：2019-08-21

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Shintaro HOTTA ,  Shinji SADAKANE ,  Fumio TAKAMIYA ,  Akira HOJO ,  Kohei UMEHARA

    IPC: F02D13/02

    Abstract: A control system of a Miller cycle engine includes an ECU. The ECU executes an early closing Miller cycle operating mode in which a variable valve mechanism is controlled to close an intake valve before an intake bottom dead center. The ECU executes a decompression mode in which the variable valve mechanism is controlled to close the intake valve at a point later than the intake BDC, when the engine is started. The electronic control unit executes the early closing Miller cycle operating mode after completion of the decompression mode. A later closing amount of the intake valve relative to the intake BDC, for use in the decompression mode, is larger than an early closing amount of the intake valve relative to the intake BDC when the closing timing of the intake valve is most advanced.

    INTERNAL COMBUSTION ENGINE
    8.
    发明申请
    INTERNAL COMBUSTION ENGINE 审中-公开

    公开(公告)号：US20190383230A1

    公开(公告)日：2019-12-19

    申请号：US16433153

    申请日：2019-06-06

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Shintaro HOTTA ,  Susumu HASHIMOTO ,  Shinji SADAKANE ,  Hiroshi TADA ,  Fumio TAKAMIYA ,  Akira HOJO

    IPC: F02F3/26 ,  F02B75/22

    Abstract: An internal combustion engine has a plurality of cylinders and transmission arranged adjoining the engine. If designating an average height of a combustion chamber in a region inside from a virtual cylindrical surface passing through center of a valve body of an intake valve and extending in a circumferential direction of each cylinder when a piston is at top dead center, as “center height”, and designating average of a height of the combustion chamber in a region outside from the virtual cylindrical surface when the piston is at top dead center, as “peripheral height”, the combustion chambers form a center height of a transmission side cylinder positioned most to the transmission side among the plurality of cylinders is higher than center heights of usual cylinders including one cylinder other than the transmission side cylinder and a peripheral height at the transmission side cylinder lower than peripheral heights of usual cylinders.

    INTERNAL COMBUSTION ENGINE SYSTEM
    9.
    发明申请
    INTERNAL COMBUSTION ENGINE SYSTEM 审中-公开

    公开(公告)号：US20180230869A1

    公开(公告)日：2018-08-16

    申请号：US15888563

    申请日：2018-02-05

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Shigehiro SUGIHIRA ,  Noriyasu ADACHI ,  Keisuke SASAKI ,  Takayoshi KAWAI ,  Kaoru OTSUKA ,  Shinji SADAKANE ,  Hiroyuki SUGIHARA

    IPC: F01L13/00 ,  F01L1/08

    Abstract: In a system that selects a large-cam as a driving cam at a time of a start of an engine, when an engine stop request is output, it is determined whether there is a small-cam cylinder for which a small-cam is selected as the driving cam. In a case where it is determined that there is a small-cam cylinder, a switching command for switching the driving cam from the small-cam to the large-cam is output. When an engine start request is output, the above determination is performed again. In a case where it is determined that there is a small-cam cylinder, the switching command is output to all solenoid actuators again. In addition, the drive of the fuel injector is suspended until the switching operation of the driving cam is completed for all cylinders.

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