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    CONTROL DEVICE OF MULTI-CYLINDER ENGINE
    11.
    发明申请
    CONTROL DEVICE OF MULTI-CYLINDER ENGINE 有权
    多缸发动机控制装置

    公开(公告)号：US20150053174A1

    公开(公告)日：2015-02-26

    申请号：US14460288

    申请日：2014-08-14

    Applicant: Mazda Motor Corporation

    Inventor： Toshiaki Nishimoto ,  Hisashi Okazawa ,  Masanori Hashimoto ,  Junsou Sasaki

    IPC: F02D13/02 ,  F02D13/06

    CPC classification number: F02D13/0207 ,  F01L1/2405 ,  F01L1/3442 ,  F01L13/0005 ,  F01L2013/001 ,  F01L2800/00 ,  F01L2820/042 ,  F02D13/0219 ,  F02D13/0261 ,  F02D13/06 ,  F02D41/0002 ,  F02D41/0087 ,  F02D41/0097 ,  F02D41/1498 ,  F02D2041/0012 ,  F02D2200/024 ,  F02D2250/24 ,  Y02T10/18 ,  Y02T10/42

    Abstract: A control device of a multi-cylinder engine is provided. The control device includes an auxiliary component and a valve stopping device having a locking mechanism for stopping an operation of at least one of intake and exhaust valves of a specific cylinder of the multi-cylinder engine according to an engine operating state. The control device includes an angular speed variation detecting device for detecting an angular speed variation of a crankshaft, an auxiliary component control device for controlling a drive load of the auxiliary component. In an all-cylinder operation, when an engine load is lower than a predetermined value and the detected angular speed variation exceeds a predetermined threshold, the auxiliary component control device performs an auxiliary component drive load increase control in which the drive load of the auxiliary component is increased to reduce the angular speed variation to be lower than the predetermined threshold.

    Abstract translation: 提供了一种多缸发动机的控制装置。 控制装置包括辅助部件和具有锁定机构的阀止动装置，该锁定机构用于根据发动机运转状态停止多气缸发动机的特定气缸的进气门和排气门中的至少一个的操作。 控制装置包括用于检测曲轴的角速度变化的角速度变动检测装置，用于控制辅助部件的驱动负荷的辅助部件控制装置。 在全缸操作中，当发动机负载低于预定值并且检测到的角速度变化超过预定阈值时，辅助部件控制装置执行辅助部件驱动负载增加控制，其中辅助部件的驱动负载 增加以将角速度变化减小到低于预定阈值。

    Oil supply control device of engine
    13.
    发明授权
    Oil supply control device of engine 有权

    公开(公告)号：US10316710B2

    公开(公告)日：2019-06-11

    申请号：US15759962

    申请日：2017-02-07

    Applicant: MAZDA MOTOR CORPORATION

    Inventor： Masanori Hashimoto

    IPC: F01L13/00 ,  F01L1/344 ,  F01L1/047 ,  F01L1/18 ,  F02D13/02 ,  F02D13/06

    Abstract: An oil supply control device includes: an adjusting device which adjusts an oil discharge amount according to an input control value to adjust a hydraulic pressure; a hydraulic controller which outputs the control value to the adjusting device; a memory which stores a first initial control value corresponding to a first target hydraulic pressure at which a hydraulic actuating device is not activated, and a second initial control value corresponding to a second target hydraulic pressure at which the hydraulic actuating device is activated; and a determination portion which compares oil initial characteristics represented by the first and second initial control values with oil characteristics represented by first and second control values, to perform oil determination as to whether or not a viscosity of the oil has changed, the first control value being input before increase of the hydraulic pressure, the second control value being input after increase.

    Oil supply system for engine
    14.
    发明授权
    Oil supply system for engine 有权

    公开(公告)号：US09964009B2

    公开(公告)日：2018-05-08

    申请号：US15174721

    申请日：2016-06-06

    Applicant: Mazda Motor Corporation

    Inventor： Masanori Hashimoto ,  Hisashi Okazawa ,  Hiroaki Muranaka ,  Kimio Ishida ,  Hiroshi Hosokawa ,  Sho Ishigaki

    IPC: F01M1/16 ,  F01M1/02 ,  F01M1/08

    CPC classification number: F01M1/16 ,  F01M1/02 ,  F01M1/08 ,  F01M2001/0238 ,  F01M2001/0246 ,  F01M2250/62 ,  F16N2250/04 ,  F16N2250/08

    Abstract: An oil supply system for an engine is provided, which includes an oil pressure controller for controlling a variable displacement oil pump to adjust a discharge pressure thereof to reach a target oil pressure corresponding to an operating state of the engine, the variable displacement oil pump capable of adjusting a discharge amount of oil, a load detector for detecting an engine load, and an oil temperature detector for detecting an oil temperature. When the engine load is low, to increase an amount of oil mist flowing inside a crank case of the engine, the oil pressure controller controls the variable displacement oil pump to increase the discharge amount as the oil temperature becomes lower, the oil mist generated by the oil flowing out of a bearing part rotatably supporting at least a crankshaft and being atomized, the engine load being considered low when below a predetermined reference load.

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