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    Engine control device and engine control method
    1.
    发明授权
    Engine control device and engine control method 有权
    发动机控制装置和发动机控制方式

    公开(公告)号：US09002590B2

    公开(公告)日：2015-04-07

    申请号：US12867577

    申请日：2009-02-18

    申请人： Teruo Akiyama ,  Hisashi Asada ,  Takeshi Ooi

    发明人： Teruo Akiyama ,  Hisashi Asada ,  Takeshi Ooi

    IPC分类号： G06F7/70 ,  G06F19/00 ,  G06G7/00 ,  G06G7/76 ,  E02F9/22 ,  F02D29/04

    CPC分类号： E02F9/2246 ,  E02F9/2232 ,  E02F9/2285 ,  F02D29/04 ,  Y10T477/675

    摘要： A first target engine speed N1 and a high-speed control area F1 are set according to a command value commanded by a command unit. A second target engine speed N2 and a high-speed control area F2 defined on a low-speed side are set according to the first target engine speed N1. A pump displacement D and an engine torque T of a variable displacement hydraulic pump are detected so that a target engine speed N corresponding to each of the detected pump displacement and engine torque is detected according to a preset relationship between a the pump displacement D and the target engine speed N and a preset relationship between the engine torque T and the target engine speed N during an engine control at the high-speed control area F2. The drive of the engine is controlled so that the engine is driven at the target engine speed N.

    摘要翻译： 根据由命令单元指令的命令值来设定第一目标发动机转速N1和高速控制区域F1。 根据第一目标发动机转速N1设定第二目标发动机转速N2和限定在低速侧的高速控制区域F2。 检测可变排量液压泵的泵排量D和发动机扭矩T，使得根据泵排量D和泵排量D的预设关系来检测与检测到的泵排量和发动机扭矩中的每一个对应的目标发动机转速N 目标发动机转速N和在高速控制区域F2的发动机控制期间的发动机转矩T与目标发动机转速N之间的预设关系。 控制发动机的驱动，使得发动机以目标发动机转速N驱动。

    Engine Control Device, And Its Control Method
    2.
    发明申请
    Engine Control Device, And Its Control Method 有权
    发动机控制装置及其控制方法

    公开(公告)号：US20100167873A1

    公开(公告)日：2010-07-01

    申请号：US12522683

    申请日：2007-12-27

    申请人： Teruo Akiyama ,  Hisashi Asada

    发明人： Teruo Akiyama ,  Hisashi Asada

    IPC分类号： F16H61/462

    CPC分类号： F02D41/021 ,  E02F9/20 ,  E02F9/2246 ,  E02F9/2296 ,  F02D29/04 ,  F02D41/0205 ,  F02D41/083 ,  F02D41/2422 ,  F15B2211/20553 ,  F15B2211/253 ,  F15B2211/50536

    摘要： A first target engine speed Nh and a high-speed control field F1 are set in accordance with a command value by command means. A second target engine speed N2 on the low rotation side and a high-speed control field F2 are set based on the first target engine speed Nh. When a matching point between an engine load and an engine output torque exceeds a first set position A which is a first predetermined pump displacement during control of an engine in the high-speed control field F2, the high-speed control field F2 is shifted toward the high-speed control field F1. Using, as a new high-speed control field, a high-speed control field 3 in which a differential pressure between a pump discharge pressure and a load pressure of an actuator satisfies a load sensing differential pressure in a pump control device 8, the engine is controlled in the high-speed control field 3, and when the differential pressure does not satisfies the load sensing differential pressure, the speed control field is shifted to the high-speed control field F1. With this, it is possible to provide an engine control device and a control method thereof in which the fuel economy of the engine is enhanced, and when the maximum speed of an operating machine is required, the required maximum speed of the operating machine is not lowered.

    摘要翻译： 根据命令装置的命令值来设定第一目标发动机转速Nh和高速控制场F1。 基于第一目标发动机转速Nh设定低转速侧的第二目标发动机转速N2和高速控制场F2。 当发动机负荷和发动机输出扭矩之间的匹配点超过在高速控制区域F2中的发动机的控制期间的第一预定泵排量的第一设定位置A时，高速控制区F2向 高速控制场F1。 使用作为新的高速控制领域的高速控制场3，其中泵排出压力和致动器的负载压力之间的压差满足泵控制装置8中的负载感测差压，发动机 在高速控制场3中被控制，并且当差压不满足负载感测差压时，速度控制场转移到高速控制场F1。 由此，能够提供发动机的燃油经济性提高的发动机控制装置及其控制方法，并且当需要操作机的最大转速时，操作机的所需最高速度不是 降低

    ENGINE CONTROL DEVICE AND ENGINE CONTROL METHOD
    5.
    发明申请
    ENGINE CONTROL DEVICE AND ENGINE CONTROL METHOD 有权
    发动机控制装置和发动机控制方法

    公开(公告)号：US20100332102A1

    公开(公告)日：2010-12-30

    申请号：US12867577

    申请日：2009-02-18

    申请人： Teruo Akiyama ,  Hisashi Asada ,  Takeshi Ooi

    发明人： Teruo Akiyama ,  Hisashi Asada ,  Takeshi Ooi

    IPC分类号： G06F19/00

    CPC分类号： E02F9/2246 ,  E02F9/2232 ,  E02F9/2285 ,  F02D29/04 ,  Y10T477/675

    摘要： A first target engine speed N1 and a high-speed control area F1 are set according to a command value commanded by a command unit. A second target engine speed N2 and a high-speed control area F2 defined on a low-speed side are set according to the first target engine speed N1. A pump displacement D and an engine torque T of a variable displacement hydraulic pump are detected so that a target engine speed N corresponding to each of the detected pump displacement and engine torque is detected according to a preset relationship between a the pump displacement D and the target engine speed N and a preset relationship between the engine torque T and the target engine speed N during an engine control at the high-speed control area F2. The drive of the engine is controlled so that the engine is driven at the target engine speed N.

    摘要翻译： 根据由命令单元指令的命令值来设定第一目标发动机转速N1和高速控制区域F1。 根据第一目标发动机转速N1设定第二目标发动机转速N2和限定在低速侧的高速控制区域F2。 检测可变排量液压泵的泵排量D和发动机转矩T，使得根据泵排量D和发动机转矩之间的预设关系来检测与检测到的泵排量和发动机扭矩中的每一个对应的目标发动机转速N 目标发动机转速N和在高速控制区域F2的发动机控制期间的发动机转矩T与目标发动机转速N之间的预设关系。 控制发动机的驱动，使得发动机以目标发动机转速N驱动。

    Engine Control Device
    6.
    发明申请
    Engine Control Device 有权
    发动机控制装置

    公开(公告)号：US20120304635A1

    公开(公告)日：2012-12-06

    申请号：US13577217

    申请日：2011-02-01

    申请人： Takeshi Ooi ,  Masashi Ichihara ,  Teruo Akiyama ,  Hisashi Asada

    发明人： Takeshi Ooi ,  Masashi Ichihara ,  Teruo Akiyama ,  Hisashi Asada

    IPC分类号： F02D29/04

    CPC分类号： E02F9/2246 ,  E02F9/2296 ,  F02D29/04 ,  F02D31/007 ,  F02D41/0205 ,  F02D41/021 ,  F02D2250/18

    摘要： A first target engine speed is set in response to a command value commanded by a command unit. A second target engine speed equal to or lower than the first target engine speed is set based on the first target engine speed. When the first target engine speed is reduced, the second target engine speed is set to be constant or be decreased and a reduction range for decreasing the first target engine speed to the second target engine speed is set to be decreased. The reduction range is set at zero when the first target engine speed is equal to or lower than an engine speed at least at a maximum torque point.

    摘要翻译： 响应于由命令单元指令的命令值设定第一目标发动机转速。 基于第一目标发动机转速来设定等于或低于第一目标发动机转速的第二目标发动机转速。 当第一目标发动机转速降低时，将第二目标发动机转速设定为恒定或减小，并且将用于将第一目标发动机转速降低至第二目标发动机转速的减小范围设定为减小。 当第一目标发动机转速等于或低于至少在最大扭矩点处的发动机转速时，减速范围被设定为零。

    Engine control device
    7.
    发明授权
    Engine control device 有权
    发动机控制装置

    公开(公告)号：US09127439B2

    公开(公告)日：2015-09-08

    申请号：US13577217

    申请日：2011-02-01

    申请人： Takeshi Ooi ,  Masashi Ichihara ,  Teruo Akiyama ,  Hisashi Asada

    发明人： Takeshi Ooi ,  Masashi Ichihara ,  Teruo Akiyama ,  Hisashi Asada

    IPC分类号： F02D29/04 ,  E02F9/22 ,  F02D41/02 ,  F02D31/00

    CPC分类号： E02F9/2246 ,  E02F9/2296 ,  F02D29/04 ,  F02D31/007 ,  F02D41/0205 ,  F02D41/021 ,  F02D2250/18

    摘要： A first target engine speed is set in response to a command value commanded by a command unit. A second target engine speed equal to or lower than the first target engine speed is set based on the first target engine speed. When the first target engine speed is reduced, the second target engine speed is set to be constant or be decreased and a reduction range for decreasing the first target engine speed to the second target engine speed is set to be decreased. The reduction range is set at zero when the first target engine speed is equal to or lower than an engine speed at least at a maximum torque point.

    摘要翻译： 响应于由命令单元指令的命令值设定第一目标发动机转速。 基于第一目标发动机转速来设定等于或低于第一目标发动机转速的第二目标发动机转速。 当第一目标发动机转速降低时，将第二目标发动机转速设定为恒定或减小，并且将用于将第一目标发动机转速降低至第二目标发动机转速的减小范围设定为减小。 当第一目标发动机转速等于或低于至少在最大扭矩点处的发动机转速时，减速范围被设定为零。

    Engine control device, and its control method
    8.
    发明授权
    Engine control device, and its control method 有权
    发动机控制装置及其控制方法

    公开(公告)号：US08640451B2

    公开(公告)日：2014-02-04

    申请号：US12522683

    申请日：2007-12-27

    申请人： Teruo Akiyama ,  Hisashi Asada

    发明人： Teruo Akiyama ,  Hisashi Asada

    IPC分类号： F02D29/04 ,  F02D41/04

    CPC分类号： F02D41/021 ,  E02F9/20 ,  E02F9/2246 ,  E02F9/2296 ,  F02D29/04 ,  F02D41/0205 ,  F02D41/083 ,  F02D41/2422 ,  F15B2211/20553 ,  F15B2211/253 ,  F15B2211/50536

    摘要： An engine control device includes an engine-driven variable displacement hydraulic pump, a hydraulic actuator driven by oil from the pump, a control valve which controls the oil discharged from the pump, and supplies the oil to and from the hydraulic actuator, pump displacement detecting means, command means for selecting and commanding variable command values, and setting means for setting a first target engine speed in accordance with a command value, and a second target engine speed lower than the first target engine speed based on the first target engine speed. When the pump displacement increases and exceeds a first predetermined pump displacement when the engine is controlled based on the second target engine speed, a target engine speed is changed from the second target engine speed to a third target engine speed higher than the second target engine speed and equal to or lower than the first target engine speed.

    摘要翻译： 发动机控制装置包括发动机驱动的可变排量液压泵，由泵驱动的液压致动器，用于控制从泵排出的油并将油供给到液压致动器的泵的位移检测 用于选择和命令可变命令值的装置，以及用于根据命令值设定第一目标发动机转速的设定装置和基于第一目标发动机转速低于第一目标发动机转速的第二目标发动机转速。 当当基于第二目标发动机转速来控制发动机时泵的位移增加并超过第一预定的泵位移时，目标发动机转速从第二目标发动机转速变为高于第二目标发动机转速的第三目标发动机转速 并且等于或低于第一目标发动机转速。

    Hydraulic shovel operability range display device and method for controlling same
    9.
    发明授权
    Hydraulic shovel operability range display device and method for controlling same 有权
    液压铲可操作范围显示装置及其控制方法

    公开(公告)号：US08886416B2

    公开(公告)日：2014-11-11

    申请号：US13819225

    申请日：2012-02-08

    申请人： Ryo Fukano ,  Hisashi Asada ,  Takashi Kurihara

    发明人： Ryo Fukano ,  Hisashi Asada ,  Takashi Kurihara

    IPC分类号： E02F9/26 ,  E02F9/20

    CPC分类号： E02F9/26 ,  E02F9/2033 ,  E02F9/2037 ,  E02F9/262 ,  E02F9/264 ,  G05B2219/45012

    摘要： In a hydraulic shovel operability range display device, a calculation unit is configured to set a boundary between an operability range and an underbody area along a vertical direction in a global coordinate system when a vehicle body is horizontally oriented. When the vehicle body is tilted forward, the calculation unit is configured to set the boundary so as to be maintained along the vertical direction in the global coordinate system. When the vehicle body is tilted backwards, the calculation unit is configured to correct the boundary between the operability range and the underbody area so that an angle formed by the boundary and the ground surface on which the vehicle body is positioned is at least 90°.

    摘要翻译： 在液压铲可操作范围显示装置中，计算单元被配置为当车身水平定向时，在全局坐标系中沿垂直方向设置可操作范围和底体区域之间的边界。 当车体向前倾斜时，计算单元被配置成在全局坐标系中沿垂直方向设置边界。 当车身向后倾斜时，计算单元被配置为校正可操作性范围和底部区域之间的边界，使得由边界和车体所在的地面形成的角度至少为90°。

    Vehicular steering control device
    10.
    发明授权
    Vehicular steering control device 有权
    车辆转向控制装置

    公开(公告)号：US07124577B2

    公开(公告)日：2006-10-24

    申请号：US11004815

    申请日：2004-12-07

    申请人： Nobuhisa Honda ,  Shuuji Hori ,  Sadao Nunotani ,  Naoki Ishizaki ,  Hisashi Asada

    发明人： Nobuhisa Honda ,  Shuuji Hori ,  Sadao Nunotani ,  Naoki Ishizaki ,  Hisashi Asada

    IPC分类号： F16D31/02

    CPC分类号： B62D5/065

    摘要： The present invention lowers energy loss while at the same time enhancing the responsiveness of a steering control system. When a steering controller is operated rapidly, the aperture area of a steering flow control valve 4 rapidly increases, and the differential pressure (Pp′-PL) across the steering flow control valve 4 rapidly decreases. When the differential pressure (Pp′-PL) across the steering flow control valve 4 rapidly decreases, a flow control valve 6 is biased by the spring force of a spring 6f and quickly moves to the side of a valve position 6b to increase the differential pressure (Pp′-PL) and make it correspond to a set pressure. Thus, the pressure oil of a surplus flow α, which up to this point has been flowing to a discharge oil line 7, is quickly supplied from the flow control valve 6 to a steering hydraulic cylinder 5 via the steering flow control valve 4. Thus, an output Q′ starts quickly relative to an input St.

    摘要翻译： 本发明降低了能量损失，同时提高了转向控制系统的响应性。 当转向控制器快速操作时，转向流量控制阀4的开口面积迅速增加，并且转向流量控制阀4两端的差压（Pp'-PL）急剧下降。 当转向流量控制阀4上的差压（Pp'-PL）急剧下降时，流量控制阀6被弹簧6f的弹簧力所偏压，并快速移动到阀位6b侧，以增加 压差（Pp'-PL）使其对应于设定压力。 因此，直到这一点已经流到排放油管线7的多余流量α的压力油通过转向流量控制阀4从流量控制阀6迅速地供给到转向液压缸5。 因此，输出Q'相对于输入信号St.