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    Construction machine
    2.
    发明授权
    Construction machine 有权
    施工机械

    公开(公告)号：US09091041B2

    公开(公告)日：2015-07-28

    申请号：US14362415

    申请日：2013-01-09

    Applicant: HITACHI CONSTRUCTION MACHINERY CO., LTD.

    Inventor： Hajime Yoshida ,  Shuuhei Noguchi ,  Makoto Motozu

    IPC: E02F9/22 ,  F02D29/02 ,  F02D1/16 ,  F02D31/00 ,  E02F3/32

    CPC classification number: E02F9/2246 ,  E02F3/325 ,  E02F9/2285 ,  E02F9/2296 ,  F02D1/16 ,  F02D29/02 ,  F02D31/007 ,  F02D31/008 ,  F02D41/064 ,  F02D41/065 ,  F02D2001/167 ,  F02D2200/021 ,  F02D2250/02 ,  F02N11/106

    Abstract: A control device for driving/controlling an engine on the basis of a signal from a temperature state detector, a rotation detector, and a rotational speed setting device is provided. The control device includes a start temperature determining processing unit configured to determine whether or not a temperature (T) at start of the engine is less than a predetermined temperature (Tw1) and a start control processing is performed in accordance with a set value of a target rotational speed (Nset) by the rotational speed setting device in case the start temperature (T) is equal to or less than the predetermined temperature (Tw1). This suppresses occurrence of cavitation by stopping the start of the engine (10) within a range in which the temperature (T) is equal to or lower than the predetermined temperature (Tw1) and the target rotational speed (Nset) of the engine (10) is higher than a predetermined threshold value (Nca).

    Abstract translation: 提供了一种用于根据来自温度状态检测器，旋转检测器和转速设定装置的信号来驱动/控制发动机的控制装置。 控制装置包括：起动温度决定处理部，其判定发动机起动时的温度（T）是否小于规定温度（Tw1），根据设定值 在开始温度（T）等于或小于预定温度（Tw1）的情况下，转速设定装置的目标转速（Nset）。 通过将发动机（10）的启动停止在温度（T）等于或低于发动机（10）的预定温度（Tw1）和目标转速（Nset）的范围内，从而抑制气蚀的发生 ）高于预定阈值（Nca）。

    CONSTRUCTION MACHINE
    3.
    发明申请
    CONSTRUCTION MACHINE 有权
    建筑机械

    公开(公告)号：US20140324322A1

    公开(公告)日：2014-10-30

    申请号：US14357006

    申请日：2012-12-24

    Applicant: HITACHI CONSTRUCTION MACHINERY CO., LTD.

    Inventor： Hajime Yoshida ,  Shuuhei Noguchi

    IPC: F02D33/00

    CPC classification number: F02D33/00 ,  E02F3/325 ,  E02F9/2066 ,  E02F9/2246 ,  E02F9/2285 ,  E02F9/2296 ,  E02F9/268 ,  F01N3/021 ,  F01N3/023 ,  F01N11/00 ,  F01N2900/1404 ,  F01N2900/1621 ,  F02D29/04 ,  F02D31/009 ,  F02D41/22 ,  F02D2041/226 ,  F02D2041/227 ,  Y02T10/40 ,  Y02T10/47

    Abstract: During an operation, a control device (38) for performing output control of an engine (10) determines whether or not the engine (10) and/or an exhaust gas purifying device (18) has a malfunction. If it is determined that the engine (10) and/or the exhaust gas purifying device (18) has a malfunction, a highest rotational speed of the engine (10) is controlled to a second rotational speed (Nt) higher by a predetermined amount (α) than a first rotational speed (Ns) at which an engine maximum torque (Tm) before the malfunction can be outputted. In this case, a maximum fuel injection quantity of the engine (10) is limited so that a rated torque (Tr) before the malfunction can be outputted at the first rotational speed (Ns).

    Abstract translation: 在操作中，用于执行发动机（10）的输出控制的控制装置（38）确定发动机（10）和/或排气净化装置（18）是否具有故障。 如果确定发动机（10）和/或排气净化装置（18）具有故障，则将发动机（10）的最高转速控制为高于预定量的第二转速（Nt） （N）比可以输出故障前的发动机最大转矩（Tm）的第一转速（Ns）大。 在这种情况下，限制发动机（10）的最大燃料喷射量，使得能够以第一转速（Ns）输出故障前的额定转矩（Tr）。

    Construction machine
    5.
    发明授权
    Construction machine 有权
    施工机械

    公开(公告)号：US09353668B2

    公开(公告)日：2016-05-31

    申请号：US14893017

    申请日：2014-05-19

    Applicant: Hitachi Construction Machinery Co., Ltd.

    Inventor： Shuuhei Noguchi ,  Hajime Yoshida

    IPC: F01N3/023 ,  F01N9/00 ,  E02F9/20

    CPC classification number: F01N9/002 ,  B01D46/006 ,  B01D46/0086 ,  E02F9/2025 ,  F01N3/023 ,  F01N3/025 ,  F01N2430/06 ,  F01N2590/08 ,  F01N2900/08 ,  F01N2900/1606 ,  Y02T10/47

    Abstract: A regeneration device burns particulate matter trapped in a filter in an exhaust gas purifying device to execute regeneration treatment of the filter. The regeneration device performs a determination whether or not the regeneration treatment is executed using a first estimated trapping quantity (H1) estimated based upon a differential pressure (ΔP=P1−P2) as a difference between pressure (P1) in an inlet side and pressure (P2) in an outlet side of the filter and a second estimated trapping quantity (H2) estimated based upon a rotational speed (N) of an engine, a fuel injection quantity (F) and an exhaust gas temperature (GT). In this case, the determination whether or not the regeneration treatment is executed is performed using only the second estimated trapping quantity (H2) when the engine is in a predetermined low rotational condition.

    Abstract translation: 再生装置燃烧废气净化装置中的过滤器中捕集的颗粒物质，进行过滤器的再生处理。 再生装置使用基于压差（＆Dgr; P = P1-P2）估计的第一估计捕获量（H1）作为入口侧的压力（P1）之间的差来执行再生处理的确定 和过滤器的出口侧的压力（P2）和基于发动机的转速（N），燃料喷射量（F）和排气温度（GT）估计的第二估计捕集量（H2）。 在这种情况下，当发动机处于预定的低旋转状态时，仅使用第二估计的捕获量（H2）来执行再生处理的确定。

    CONSTRUCTION MACHINE
    6.
    发明申请
    CONSTRUCTION MACHINE 有权
    建筑机械

    公开(公告)号：US20140350800A1

    公开(公告)日：2014-11-27

    申请号：US14362415

    申请日：2013-01-09

    Applicant: HITACHI CONSTRUCTION MACHINERY CO., LTD.

    Inventor： Hajime Yoshida ,  Shuuhei Noguchi ,  Makoto Motozu

    IPC: E02F9/22 ,  F02D1/16 ,  F02D31/00

    CPC classification number: E02F9/2246 ,  E02F3/325 ,  E02F9/2285 ,  E02F9/2296 ,  F02D1/16 ,  F02D29/02 ,  F02D31/007 ,  F02D31/008 ,  F02D41/064 ,  F02D41/065 ,  F02D2001/167 ,  F02D2200/021 ,  F02D2250/02 ,  F02N11/106

    Abstract: A control device for driving/controlling an engine on the basis of a signal from a temperature state detector, a rotation detector, and a rotational speed setting device is provided. The control device includes a start temperature determining processing unit configured to determine whether or not a temperature (T) at start of the engine is less than a predetermined temperature (Tw1) and a start control processing is performed in accordance with a set value of a target rotational speed (Nset) by the rotational speed setting device in case the start temperature (T) is equal to or less than the predetermined temperature (Tw1). This suppresses occurrence of cavitation by stopping the start of the engine (10) within a range in which the temperature (T) is equal to or lower than the predetermined temperature (Tw1) and the target rotational speed (Nset) of the engine (10) is higher than a predetermined threshold value (Nca).

    Abstract translation: 提供了一种用于根据来自温度状态检测器，旋转检测器和转速设定装置的信号来驱动/控制发动机的控制装置。 控制装置包括：起动温度决定处理部，其判定发动机起动时的温度（T）是否小于规定温度（Tw1），根据设定值 在开始温度（T）等于或小于预定温度（Tw1）的情况下，转速设定装置的目标转速（Nset）。 通过将发动机（10）的启动停止在温度（T）等于或低于发动机（10）的预定温度（Tw1）和目标转速（Nset）的范围内，从而抑制气蚀的发生 ）高于预定阈值（Nca）。

    CONSTRUCTION MACHINE
    7.
    发明申请
    CONSTRUCTION MACHINE 审中-公开
    建筑机械

    公开(公告)号：US20140251146A1

    公开(公告)日：2014-09-11

    申请号：US14349145

    申请日：2012-10-23

    Applicant: HITACHI CONSTRUCTION MACHINERY CO., LTD.

    Inventor： Shuuhei Noguchi ,  Hajime Ishii ,  Hajime Yoshida

    IPC: F01N3/025

    CPC classification number: F01N3/025 ,  B01D46/006 ,  B01D46/42 ,  B01D2279/30 ,  E02F3/325 ,  E02F9/2066 ,  E02F9/2095 ,  F01N3/023 ,  F01N3/0253 ,  F01N3/106 ,  F01N9/002 ,  F01N2560/08 ,  F01N2560/14 ,  F01N2590/08 ,  F01N2900/1606 ,  F02D41/029 ,  F02D2200/0812 ,  F02D2200/604 ,  Y02T10/47

    Abstract: A regeneration device performs regeneration of a filter by burning particulate matter trapped by the filter of an exhaust gas purifying device. The regeneration device is configured to perform two types of processing, that is, automatic regeneration processing for automatically performing regeneration not on the basis of an operation by an operator and manual regeneration processing for performing regeneration by notifying an operator to manually perform the regeneration and by performing the regeneration on the basis of an operation by the operator. The automatic regeneration processing makes determination on whether or not to perform regeneration on the basis of an estimated trapping amount (H) estimated from an engine rotational speed (N) and a fuel injection quantity (F). The manual regeneration processing makes determination on whether or not to notify the operator on the basis of a differential pressure (ΔP) of the particulate matter removing filter.

    Abstract translation: 再生装置通过燃烧由废气净化装置的过滤器捕获的颗粒物质来进行过滤器的再生。 再生装置被配置为执行两种类型的处理，即，不是基于操作者的操作而自动执行再生的自动再生处理，以及通过通知操作者手动执行再生的手动再生处理，以及通过 基于操作者的操作进行再生。 自动再生处理根据从发动机转速（N）和燃料喷射量（F）估计的估计的捕集量（H），判定是否进行再生。 手动再生处理确定是否基于颗粒物去除过滤器的压差（＆Dgr; P）通知操作者。

    Construction machine
    9.
    发明授权
    Construction machine 有权
    施工机械

    公开(公告)号：US09540983B2

    公开(公告)日：2017-01-10

    申请号：US14785056

    申请日：2014-08-05

    Applicant: Hitachi Construction Machinery Co., Ltd.

    Inventor： Shuuhei Noguchi ,  Hajime Yoshida

    IPC: F01N3/00 ,  F01N3/10 ,  F01N3/02 ,  F01N9/00 ,  F02D41/02 ,  F02D41/14 ,  F02D41/40 ,  F01N3/023 ,  F01N3/035

    CPC classification number: F01N9/002 ,  F01N3/0235 ,  F01N3/035 ,  F01N3/106 ,  F01N2430/085 ,  F01N2590/08 ,  F01N2900/1404 ,  F01N2900/1606 ,  F02D41/029 ,  F02D41/1446 ,  F02D41/405 ,  F02D2200/0812 ,  Y02T10/44 ,  Y02T10/47

    Abstract: A regeneration device (22) executes regeneration treatment of a filter (21) in an exhaust gas purifying device (18) by burning particulate matter trapped in the filter (21). The regeneration device (22) interrupts the regeneration treatment of the filter (21) when an exhaust gas temperature T detected by an exhaust gas temperature sensor (26) becomes less than an exhaust gas temperature threshold Tt during a period of performing the regeneration treatment of the filter (21). In a case where the regeneration treatment of the filter (21) is interrupted, when the exhaust gas temperature T becomes equal to or more than the exhaust gas temperature threshold Tt, the regeneration treatment of the filter (21) is restarted.

    Abstract translation: 再生装置（22）通过燃烧捕集在过滤器（21）中的颗粒物质来执行废气净化装置（18）中的过滤器（21）的再生处理。 当在执行再生处理的时间段期间，当废气温度传感器（26）检测到的废气温度T变得小于废气温度阈值Tt时，再生装置（22）中断过滤器（21）的再生处理 过滤器（21）。 在过滤器（21）的再生处理中断的情况下，当排气温度T变得等于或大于排气温度阈值Tt时，重新开始过滤器（21）的再生处理。

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