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    SPARK-IGNITION DIRECT INJECTION ENGINE
    1.
    发明申请
    SPARK-IGNITION DIRECT INJECTION ENGINE 有权
    火花点火直喷式发动机

    公开(公告)号：US20140069382A1

    公开(公告)日：2014-03-13

    申请号：US13972562

    申请日：2013-08-21

    申请人： Mazda Motor Corporation

    发明人： Kouhei Iwai ,  Masahisa Yamakawa ,  Junichi Taga ,  Shigeru Nakagawa ,  Saori Mizuno ,  Keiji Araki

    IPC分类号： F02D43/04

    CPC分类号： F02D43/04 ,  F02D41/1446 ,  F02D41/18 ,  F02D41/3035 ,  F02D41/3041 ,  F02D41/3064 ,  F02D41/3836 ,  F02D41/401 ,  F02D2041/0067 ,  F02D2200/0406 ,  Y02T10/44 ,  Y02T10/47

    摘要： A spark-ignition direct injection engine is provided. The engine includes an engine body, a fuel injection valve, a fuel pressure setting mechanism, an ignition plug, and a controller. The controller switches between a compression-ignition mode where the engine body is operated to perform compression-ignition combustion and a spark-ignition mode where the engine body is operated to perform spark-ignition combustion. Immediately after switching from the spark-ignition mode to the compression-ignition mode, the controller operates the engine body in a compression-ignition initial mode where the fuel pressure is set to be 30 MPa or above and the fuel injection valve is controlled to perform the fuel injection in a period from a late stage of the compression stroke to an early stage of the expansion stroke so that the gas mixture self-ignites to combust.

    摘要翻译： 提供火花点火直喷发动机。 发动机包括发动机主体，燃料喷射阀，燃料压力设定机构，火花塞和控制器。 控制器在发动机主体进行压燃式燃烧的压燃式模式和发动机主体运转的火花点火模式之间进行切换，进行火花点火燃烧。 在从火花点火模式切换到压缩点火模式之后，控制器在燃料压力设定为30MPa以上并且燃料喷射阀被控制为执行的压缩点火初始模式下操作发动机主体 在从压缩冲程的后期到膨胀冲程的早期阶段的燃料喷射，使得气体混合物自燃燃烧。

    CONTROL DEVICE OF COMPRESSION-IGNITION ENGINE
    5.
    发明申请
    CONTROL DEVICE OF COMPRESSION-IGNITION ENGINE 有权
    压缩点火发动机的控制装置

    公开(公告)号：US20150083073A1

    公开(公告)日：2015-03-26

    申请号：US14464581

    申请日：2014-08-20

    申请人： Mazda Motor Corporation

    发明人： Kazuhiro Nagatsu ,  Junichi Taga ,  Atsushi Inoue ,  Takashi Youso ,  Mitsunori Wasada ,  Keiji Araki

    IPC分类号： F02D41/12 ,  F02D13/02 ,  F02B1/14 ,  F02D41/00 ,  F02D41/30 ,  F02D41/14

    CPC分类号： F02D41/123 ,  F02B1/14 ,  F02D13/0261 ,  F02D35/025 ,  F02D41/0005 ,  F02D41/0025 ,  F02D41/0057 ,  F02D41/006 ,  F02D41/0077 ,  F02D41/126 ,  F02D41/1438 ,  F02D41/3005 ,  F02D41/3035 ,  F02D41/3076 ,  F02D41/401 ,  F02D2041/001 ,  F02M25/12 ,  F02M26/25 ,  Y02T10/128

    摘要： A control device of a compression-ignition engine is provided. The device includes an engine having a cylinder, a fuel injection valve for injecting a fuel, an exhaust valve mechanism for switching an operation mode of an exhaust valve between a normal mode and an open-twice mode, a throttle valve disposed on an intake passage, and a controller for operating the engine by compression-ignition combustion of mixture gas inside the cylinder at least within a low engine load range. The controller suspends the fuel injection by the fuel injection valve when a predetermined fuel cut condition is met while the engine decelerates, and the controller fully closes the throttle valve and controls the exhaust valve mechanism to operate in the open-twice mode during the fuel cut. When a predetermined fuel resuming condition is met, the controller restarts the fuel injection, opens the throttle valve, and causes the compression-ignition combustion.

    摘要翻译： 提供了一种压缩点火式发动机的控制装置。 该装置包括具有气缸的发动机，用于喷射燃料的燃料喷射阀，用于切换正常模式和二次打开模式之间的排气阀的操作模式的排气阀机构，设置在进气通道上的节流阀 以及控制器，其用于通过至少在低发动机负载范围内的气缸内的混合气体的压缩点火燃烧来操作发动机。 当发动机减速时达到预定的燃料切断条件时，控制器暂停燃料喷射阀的燃料喷射，并且控制器完全关闭节气门并且控制排气门机构在燃料切断期间以开二次模式运行 。 当满足预定的燃料恢复条件时，控制器重新启动燃料喷射，打开节流阀，并引起压燃式燃烧。

    CONTROL DEVICE OF COMPRESSION-IGNITION ENGINE
    6.
    发明申请
    CONTROL DEVICE OF COMPRESSION-IGNITION ENGINE 有权
    压缩点火发动机的控制装置

    公开(公告)号：US20150083072A1

    公开(公告)日：2015-03-26

    申请号：US14464569

    申请日：2014-08-20

    申请人： Mazda Motor Corporation

    发明人： Kazuhiro Nagatsu ,  Junichi Taga ,  Takashi Youso ,  Atsushi Inoue ,  Mitsunori Wasada ,  Keiji Araki

    IPC分类号： F02D41/00 ,  F02B1/14 ,  F02D13/02

    CPC分类号： F02D41/005 ,  F02B1/10 ,  F02B1/14 ,  F02D13/0261 ,  F02D41/0025 ,  F02D41/0057 ,  F02D41/006 ,  F02D41/0065 ,  F02D41/0077 ,  F02D41/3035 ,  F02D41/3836 ,  F02D41/401 ,  F02M25/12 ,  F02M26/33 ,  Y02T10/128 ,  Y02T10/18 ,  Y02T10/44 ,  Y02T10/47

    摘要： A control device of a compression-ignition engine is provided. The control device includes the engine having a cylinder, an exhaust gas recirculation system for introducing exhaust gas into the cylinder, and a controller for operating the engine by compression-ignition combustion of mixture gas inside the cylinder within a predetermined compression-ignitable range on a low engine load side. Within the compression-ignitable range, the controller sets an EGR ratio higher as the engine load becomes lower, and the controller sets the EGR ratio to a predetermined highest EGR ratio when the engine load is at a specific load that is on the low engine load side within the compression-ignitable range. When the engine load is lower than the specific load, the controller sets the EGR ratio to be lower than the highest EGR ratio.

    摘要翻译： 提供了一种压缩点火式发动机的控制装置。 控制装置包括具有气缸的发动机，用于将废气引入气缸的排气再循环系统，以及控制器，用于通过在预定的压缩可燃范围内的气缸内的混合气体的压缩点火燃烧来操作发动机 低发动机负荷侧。 在压缩可燃范围内，当发动机负荷变低时，控制器将EGR率设定为较高，并且当发动机负载处于低发动机负荷的特定负荷时，控制器将EGR率设定为预定的最高EGR率 在压缩可燃范围内。 当发动机负荷低于特定负荷时，控制器将EGR率设定为低于最高EGR率。

    START CONTROL DEVICE OF COMPRESSION SELF-IGNITION ENGINE
    7.
    发明申请
    START CONTROL DEVICE OF COMPRESSION SELF-IGNITION ENGINE 有权
    启动自动点火发动机的控制装置

    公开(公告)号：US20130138328A1

    公开(公告)日：2013-05-30

    申请号：US13649055

    申请日：2012-10-10

    申请人： Mazda Motor Corporation

    发明人： Daisuke Shimo ,  Yoshihisa Nakamoto ,  Takeo Yamauchi ,  Junichi Taga ,  Kenta Kobayashi ,  Masahiro Miyazaki

    IPC分类号： F02D41/26

    CPC分类号： F02D41/062 ,  F02D35/024 ,  F02D35/026 ,  F02D41/403 ,  F02D2041/0095 ,  F02N11/0814 ,  F02N2019/002 ,  Y02T10/44

    摘要： A start control device of a compression self-ignition engine is provided. The device includes: a determining module for determining whether a piston of a compression-stroke-in-stop cylinder that is stopped on a compression stroke according to an automatic stop is within a specific range set on a bottom dead center side of a predetermined reference stop position; an injection control module for controlling each fuel injection valve to inject fuel into the compression-stroke-in-stop cylinder first after the piston of the compression-stroke-in-stop cylinder is determined to be stopped within the specific range and the engine restart condition is satisfied; and an in-cylinder pressure estimating module for estimating an in-cylinder pressure of the compression-stroke-in-stop cylinder at a first top dead center on the compression stroke in the restart, where the piston of the compression-stroke-in-stop cylinder reaches after the restart starts.

    摘要翻译： 提供了压缩自点火发动机的起动控制装置。 该装置包括：确定模块，用于根据自动停止确定在压缩行程上停止的压缩行程停止缸的活塞是否在设定在预定基准的下死点侧的特定范围内 停止位置 一个喷射控制模块，用于控制每个燃料喷射阀，以便在压缩行程停止气缸的活塞被确定为停止在特定范围内并且发动机重起之前首先将燃料喷射到压缩行程停止缸中 条件满足; 以及缸内压力推定模块，其用于估计在重启中的压缩冲程上的第一上止点处的压缩行程停止缸的缸内压力，其中， 重新启动后停止气瓶到达。

    VEHICLE DRIVING SYSTEM
    8.
    发明公开
    VEHICLE DRIVING SYSTEM 审中-公开

    公开(公告)号：US20240270233A1

    公开(公告)日：2024-08-15

    申请号：US18410131

    申请日：2024-01-11

    申请人： Mazda Motor Corporation

    发明人： Mikinori Ohashi ,  Junichi Taga ,  Satoshi Watanabe ,  Yuki Hikichi

    IPC分类号： B60W20/40 ,  B60W10/02 ,  B60W10/06

    CPC分类号： B60W20/40 ,  B60W10/02 ,  B60W10/06 ,  B60W2510/0685 ,  B60W2710/021 ,  B60W2710/0616

    摘要： A driving system for a vehicle includes an engine including a fuel injection valve, an electric motor, a hydraulic clutch which connects/disconnects the engine to/from the motor, a hydraulic pressure sensor which detects hydraulic pressure of the clutch, and a controller which selectively executes one of a motor travel mode where the motor is activated and the engine is stopped, and an engine travel mode where at least the engine is activated. In a startup of the engine accompanying a change from the motor travel mode to the engine travel mode, the controller causes the clutch to transition from a disconnected state to a connected state, determines the connected state of the clutch based on hydraulic pressure detected by the hydraulic pressure sensor, and when the clutch is confirmed to be in a predetermined connection initial state, the controller causes the fuel injection valve to inject fuel.