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公开(公告)号：US20120310492A1
公开(公告)日：2012-12-06
申请号：US13575462
申请日：2011-01-27
申请人： Hideo Karasawa , Nobuei Ariga , Tsuyoshi Nakamura
发明人： Hideo Karasawa , Nobuei Ariga , Tsuyoshi Nakamura
CPC分类号： E02F9/2253 , E02F9/2282 , E02F9/2285 , E02F9/2292 , F15B2211/20576 , F15B2211/3116 , F15B2211/50518 , F15B2211/528 , F15B2211/5753 , F15B2211/6309 , F15B2211/7135 , F15B2211/763 , F16H61/4017 , F16H61/4061 , F16H61/4148 , F16H61/421 , F16H61/423 , F16H61/44 , F16H61/47
摘要： A hydraulic working machine, typically a hydraulic excavator has a travel speed control unit and a boost control unit. The travel speed control unit includes a traveling, hydraulic pressure oil feed unit capable of feeding pressure oil to actuate traveling tilt-angle control devices. The boost control unit includes a boosting, hydraulic pressure oil feed unit capable of feeding pressure oil to actuate an adjustable relief valve. A single hydraulic pressure oil feed unit is commonly usable as the traveling, hydraulic pressure oil feed unit and the boosting, hydraulic pressure oil feed unit, and includes lines communicating with both of the traveling tilt-angle control devices and the adjustable relief valve, a solenoid valve for opening or closing these lines, and a controller for outputting a control signal to control the solenoid valve.
摘要翻译： 液压作业机械，通常为液压挖掘机，具有行驶速度控制单元和升压控制单元。 行驶速度控制单元包括行进的液压供油单元，其能够供给压力油来致动行驶的倾斜角度控制装置。 升压控制单元包括能够供给压力油以致动可调节溢流阀的增压液压供油单元。 单独的液压给油单元通常可用作行进的液压供油单元和升压液压供油单元，并且包括与行进的倾斜角度控制装置和可调安全阀相通的管路， 用于打开或关闭这些线路的电磁阀，以及用于输出控制信号以控制电磁阀的控制器。
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公开(公告)号：US08006491B2
公开(公告)日：2011-08-30
申请号：US12282591
申请日：2008-01-22
申请人： Akihiro Narazaki , Kouji Ishikawa , Nobuei Ariga
发明人： Akihiro Narazaki , Kouji Ishikawa , Nobuei Ariga
CPC分类号： E02F9/2235 , E02F9/2282 , E02F9/2285 , E02F9/2292 , E02F9/2296 , F04B17/05
摘要： On the basis of reference torque and torque correction amount output units (T1 and T2), a torque control command pressure is calculated so that the input torques of first and second pumps are increased. The calculated torque command instruction pressure is then supplied as external command pressure to the varying mechanism of a regulator used for the first and second pumps so as to prevent the input torques of the first and second pumps from being decreased more than necessary. As a result, even when three variable displacement hydraulic pumps are used with the discharge pressure of one of the hydraulic pumps reduced by a pressure reducing valve and further the input torques of the other two hydraulic pumps are decreased by that pressure, the engine output can be efficiently utilized, and the work rate does not decrease.
摘要翻译： 基于参考扭矩和扭矩校正量输出单元（T1和T2），计算转矩控制指令压力，使得第一和第二泵的输入转矩增加。 然后将计算出的转矩指令指令压力作为外部指令压力提供给用于第一和第二泵的调节器的变化机构，以防止第一和第二泵的输入转矩减小到超过所需的压力。 结果，即使使用三个可变排量液压泵，其中一个液压泵的排出压力由减压阀减小，另外两个液压泵的输入转矩也减小了该压力，发动机输出可以 有效利用，工作率不降低。
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公开(公告)号：US07584611B2
公开(公告)日：2009-09-08
申请号：US11632474
申请日：2005-11-18
申请人： Nobuei Ariga , Kazunori Nakamura , Kouji Ishikawa
发明人： Nobuei Ariga , Kazunori Nakamura , Kouji Ishikawa
IPC分类号： F16D31/02
CPC分类号： F15B21/14 , E02F9/2235 , E02F9/2242 , E02F9/2246 , E02F9/2292 , E02F9/2296 , F02B3/06 , F02D29/02 , F02D31/007 , F02D41/021 , F02D2200/604 , F15B11/17 , F15B21/087 , F15B2211/20553 , F15B2211/20576 , F15B2211/88
摘要： When a mode selection command selects an economy mode, a mode selector 700e is turned on and outputs an engine revolution speed modification value ΔN0 (ΔN1=ΔN0) computed by an engine-revolution-speed modification value computing section 700d. A subtracter 700f subtracts the engine revolution speed modification value ΔN1 from a rated target revolution speed Nmax, thereby computing a target engine revolution speed NR2. The computing section 700d computes the engine revolution speed modification value ΔN0 depending on a pump delivery pressure mean value Pm. In a table stored in a memory, the relationship between Pm and ΔN0 is set such that when Pm is not higher than PA near a midpoint pressure, ΔN0 is 0 and when Pm exceeds PA, ΔN0 is increased with an increase of Pm. Thus, the revolution speed of a prime mover is reduced by mode selection so as to improve fuel economy.
摘要翻译： 当模式选择命令选择经济模式时，模式选择器700e被接通并输出由发动机转速修正值计算部700d计算的发动机转速修正值DeltaN0（DeltaN1 = DeltaN0）。 减速器700f从额定目标转速Nmax中减去发动机转速修正值DeltaN1，从而计算目标发动机转速NR2。 计算部700d根据泵输送压力平均值Pm计算发动机转速修正值DeltaN0。 在存储在存储器中的表中，设定Pm和DeltaN0之间的关系，使得当Pm不高于中点附近的PA时，DeltaN0为0，当Pm超过PA时，ΔN0随着Pm的增加而增加。 因此，通过模式选择来减少原动机的转速，以提高燃油经济性。
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公开(公告)号：US20070261277A1
公开(公告)日：2007-11-15
申请号：US11661972
申请日：2005-09-08
IPC分类号： E02F9/22
CPC分类号： F15B21/005 , E02F9/2246 , E02F9/2285 , F15B13/0422 , F15B2211/20523 , F15B2211/20546 , F15B2211/329 , F15B2211/355 , F15B2211/7053
摘要： A work machine is provided having a starter motor for starting a prime mover, which without provision of any special hydraulic equipment, allows for draining pressure oil that still remains in a hydraulic actuator for driving a front attachment. The work machine is provided with a boom cylinder for driving a front attachment, a flow rate control valve for controlling a flow of pressure oil to be supplied to the boom cylinder, and a pilot valve for producing an output of a pilot control signal, which serves to switch the flow rate control valve, by using, as a primary pressure, pressure oil delivered from a pilot hydraulic pump driven by an engine. A fuel stop switch is provided for performing stop control on a supply of fuel, which drives the engine, and a switch is provided for maintaining drivable a starter motor, which starts the engine, responsive to the stop control of the supply of fuel to the engine by the fuel stop switch.
摘要翻译： 提供一种作业机器，其具有用于启动原动机的起动电动机，其不需要任何特殊的液压设备，能够排出仍然保留在用于驱动前部附件的液压致动器中的压力油。 作业机械设有用于驱动前附件的动臂缸，用于控制供给动臂缸的压力油的流量的流量控制阀，以及用于产生先导控制信号的输出的先导阀， 用于通过使用从发动机驱动的先导液压泵输送的压力油作为一次压力来切换流量控制阀。 提供燃料停止开关，用于对驱动发动机的燃料供应进行停止控制，并且提供开关，用于维持起动发动机的可启动起动电动机的开关，响应于停止控制对燃料供应的燃料 发动机由燃油停止开关。
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公开(公告)号：US08521374B2
公开(公告)日：2013-08-27
申请号：US13575462
申请日：2011-01-27
申请人： Hideo Karasawa , Nobuei Ariga , Tsuyoshi Nakamura
发明人： Hideo Karasawa , Nobuei Ariga , Tsuyoshi Nakamura
IPC分类号： G06F7/70
CPC分类号： E02F9/2253 , E02F9/2282 , E02F9/2285 , E02F9/2292 , F15B2211/20576 , F15B2211/3116 , F15B2211/50518 , F15B2211/528 , F15B2211/5753 , F15B2211/6309 , F15B2211/7135 , F15B2211/763 , F16H61/4017 , F16H61/4061 , F16H61/4148 , F16H61/421 , F16H61/423 , F16H61/44 , F16H61/47
摘要： A hydraulic working machine, typically a hydraulic excavator has a travel speed control unit and a boost control unit. The travel speed control unit includes a traveling, hydraulic pressure oil feed unit capable of feeding pressure oil to actuate traveling tilt-angle control devices. The boost control unit includes a boosting, hydraulic pressure oil feed unit capable of feeding pressure oil to actuate an adjustable relief valve. A single hydraulic pressure oil feed unit is commonly usable as the traveling, hydraulic pressure oil feed unit and the boosting, hydraulic pressure oil feed unit, and includes lines communicating with both of the traveling tilt-angle control devices and the adjustable relief valve, a solenoid valve for opening or closing these lines, and a controller for outputting a control signal to control the solenoid valve.
摘要翻译： 液压作业机械，通常为液压挖掘机，具有行驶速度控制单元和升压控制单元。 行驶速度控制单元包括行进的液压供油单元，其能够供给压力油来致动行驶的倾斜角度控制装置。 升压控制单元包括能够供给压力油以致动可调节溢流阀的增压液压供油单元。 单独的液压给油单元通常可用作行进的液压供油单元和升压液压供油单元，并且包括与行进的倾斜角度控制装置和可调安全阀相通的管路， 用于打开或关闭这些线路的电磁阀，以及用于输出控制信号以控制电磁阀的控制器。
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公开(公告)号：US08424298B2
公开(公告)日：2013-04-23
申请号：US12445605
申请日：2008-01-30
申请人： Nobuei Ariga , Kouji Ishikawa , Hideo Karasawa , Yasuo Okano , Kazunori Nakamura , Youichi Kowatari
发明人： Nobuei Ariga , Kouji Ishikawa , Hideo Karasawa , Yasuo Okano , Kazunori Nakamura , Youichi Kowatari
IPC分类号： F16D31/02
CPC分类号： F15B13/0422 , E02F9/2225 , E02F9/2235 , E02F9/2282 , E02F9/2285 , E02F9/2292 , E02F9/2296 , F04B17/05 , F04B49/08 , F15B11/17 , F15B2211/20523 , F15B2211/20546 , F15B2211/20553 , F15B2211/26 , F15B2211/2656 , F15B2211/3116 , F15B2211/31576 , F15B2211/329 , F15B2211/6309 , F15B2211/633 , F15B2211/6343 , F15B2211/6652 , F15B2211/6655 , F15B2211/7053 , F15B2211/7058
摘要： A pump torque control system is capable of preventing hunting due to interference between speed sensing control and control of an engine speed of a prime mover when the temperature of a hydraulic fluid is low.A maximum absorption torque is set in a regulator 31 that controls displacement volumes of hydraulic pumps 2 and 3 based on a deviation between target and actual engine speeds of a prime mover 1. A second modification factor calculating section 45 and a control gain modifying section 49, which are included in a controller 23 that performs speed sensing control to ensure that the maximum absorption torque of the hydraulic pumps 2 and 3 is reduced, change a control gain of the speed sensing control based on a value detected by the hydraulic temperature sensor 34 to ensure that the control gain is reduced as the temperature of the hydraulic fluid is reduced.
摘要翻译： 泵扭矩控制系统能够防止在液压流体的温度低时速度感测控制和原动机的发动机转速的控制之间的干扰。 在基于原动机1的目标和实际发动机转速之间的偏差来控制液压泵2和3的排量的调节器31中设定最大吸收扭矩。第二修正因子计算部45和控制增益修正部49 ，其包括在执行速度感测控制以确保液压泵2和3的最大吸收扭矩减小的控制器23中，基于由液压温度传感器34检测到的值来改变速度感测控制的控制增益 以确保当液压流体的温度降低时控制增益降低。
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公开(公告)号：US08371117B2
公开(公告)日：2013-02-12
申请号：US12159265
申请日：2007-09-07
IPC分类号： F16D31/02
CPC分类号： F15B11/17 , E02F9/2235 , E02F9/2285 , E02F9/2292 , E02F9/2296 , F15B2211/20553 , F15B2211/20576 , F15B2211/26 , F15B2211/265
摘要： Torque control for a construction machine three-pump system that can accurately control the total absorption torque of first, second, and third hydraulic pumps and effectively use the output torque of an engine. A pump base torque computation section 42 calculates a pump base torque Tr from a target rotation speed. A subtraction section 44 calculates a reference value Tf for the maximum absorption torque available to the first and second hydraulic pumps 2, 3 by subtracting a third pump reference absorption torque T3r from the pump base torque Tr. A correction torque computation section 45 calculates a correction torque value from the delivery pressure of the third hydraulic pump 4. An addition section 46 calculates a target absorption torque Tn by adding the correction torque value Tm to the reference value Tf. A first regulator 31 is controlled so as to obtain the target absorption torque Tn.
摘要翻译： 施工机械三泵系统的扭矩控制可以精确控制第一，二，三液压泵的总吸收转矩，有效地利用发动机的输出转矩。 泵基转矩运算部42根据目标转速来计算泵基转矩Tr。 减法部分44通过从泵基本扭矩Tr减去第三泵参考吸收转矩T3r来计算第一和第二液压泵2,3的可用的最大吸收扭矩的参考值Tf。 校正扭矩计算部45根据第三液压泵4的输出压力来计算修正转矩值。加法部46通过将校正转矩值Tm与基准值Tf相加来计算目标吸收转矩Tn。 控制第一调节器31以获得目标吸收扭矩Tn。
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公开(公告)号：US20100277590A1
公开(公告)日：2010-11-04
申请号：US12746618
申请日：2008-12-08
申请人： Nobuei Ariga , Hidenobu Tsukada
发明人： Nobuei Ariga , Hidenobu Tsukada
IPC分类号： H04N7/18
CPC分类号： E02F9/261 , B60R1/00 , B60R2300/70 , B60R2300/8093 , E02F9/2062 , E02F9/2066 , E02F9/26
摘要： [Problem] To provide a construction machine, which can surely perform confirmation of conditions around a machine body upon starting work and can start a prime mover even when obstruction exists around the machine body.[Solution] A picture display control means and an engine start delay means are provided. The control means includes a picture switch means 22 for switching a picture of a monitor 13 to a picture of peripheral image information, which is based on video signals from a monitor camera 12, based on an ON signal outputted from an engine key switch device 16. The delay means includes a storage unit 19 for storing beforehand a set time during which the picture of peripheral image information remains displayed from the output of the ON signal, a picture display time discrimination means 23 for discriminating whether or not a display time of the picture of peripheral image information displayed on the monitor 13 has reached the set time, and an engine start control means 21 for controlling an engine 8 to remain disabled to start based on the ON signal and controlling to enable starting of the engine 8 responsive to the results of discrimination by the picture display time discrimination means 23.
摘要翻译： [问题]提供一种建筑机械，其可以在开始工作时确实地确认机体周围的状况，并且即使在机体周围存在障碍物也可以启动原动机。 [解决方案]提供图像显示控制装置和引擎启动延迟装置。 控制装置包括图像切换装置22，用于根据从发动机钥匙开关装置16输出的ON信号将监视器13的图像切换到基于来自监视摄像机12的视频信号的周边图像信息的图像 该延迟装置包括一个存储单元19，用于预先存储从ON信号的输出中保持显示外围图像信息的图像的设置时间;图像显示时间鉴别装置23，用于鉴别是否显示 显示在监视器13上的周边图像信息的图像已经达到设定时间，并且发动机起动控制装置21基于ON信号控制发动机8保持禁止启动，并且控制使得能够响应于发动机8启动发动机8 图像显示时间鉴别装置23的鉴别结果。
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公开(公告)号：US07464493B2
公开(公告)日：2008-12-16
申请号：US11661972
申请日：2005-09-08
CPC分类号： F15B21/005 , E02F9/2246 , E02F9/2285 , F15B13/0422 , F15B2211/20523 , F15B2211/20546 , F15B2211/329 , F15B2211/355 , F15B2211/7053
摘要： A work machine is provided having a starter motor for starting a prime mover, which without provision of any special hydraulic equipment, allows for draining pressure oil that still remains in a hydraulic actuator for driving a front attachment. The work machine is provided with a boom cylinder for driving a front attachment, a flow rate control valve for controlling a flow of pressure oil to be supplied to the boom cylinder, and a pilot valve for producing an output of a pilot control signal, which serves to switch the flow rate control valve, by using, as a primary pressure, pressure oil delivered from a pilot hydraulic pump driven by an engine. A fuel stop switch is provided for performing stop control on a supply of fuel, which drives the engine, and a switch is provided for maintaining drivable a starter motor, which starts the engine, responsive to the stop control of the supply of fuel to the engine by the fuel stop switch.
摘要翻译： 提供一种作业机器，其具有用于启动原动机的起动电动机，其不需要任何特殊的液压设备，能够排出仍然保留在用于驱动前部附件的液压致动器中的压力油。 作业机械设有用于驱动前附件的动臂缸，用于控制供给动臂缸的压力油的流量的流量控制阀，以及用于产生先导控制信号的输出的先导阀， 用于通过使用从发动机驱动的先导液压泵输送的压力油作为一次压力来切换流量控制阀。 提供燃料停止开关，用于对驱动发动机的燃料供应进行停止控制，并且提供开关，用于维持起动发动机的可启动起动电动机的开关，响应于停止控制对燃料供应的燃料 发动机由燃油停止开关。
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公开(公告)号：US20080072588A1
公开(公告)日：2008-03-27
申请号：US11632474
申请日：2005-11-18
申请人： Nobuei Ariga , Kazunori Nakamura , Kouji Ishikawa
发明人： Nobuei Ariga , Kazunori Nakamura , Kouji Ishikawa
IPC分类号： F15B9/00
CPC分类号： F15B21/14 , E02F9/2235 , E02F9/2242 , E02F9/2246 , E02F9/2292 , E02F9/2296 , F02B3/06 , F02D29/02 , F02D31/007 , F02D41/021 , F02D2200/604 , F15B11/17 , F15B21/087 , F15B2211/20553 , F15B2211/20576 , F15B2211/88
摘要： When a mode selection command selects an economy mode, a mode selector 700e is turned on and outputs an engine revolution speed modification value ΔN0 (ΔN1=ΔN0) computed by an engine-revolution-speed modification value computing section 700d. A subtracter 700f subtracts the engine revolution speed modification value ΔN1 from a rated target revolution speed Nmax, thereby computing a target engine revolution speed NR2. The computing section 700d computes the engine revolution speed modification value ΔN0 depending on a pump delivery pressure mean value Pm. In a table stored in a memory, the relationship between Pm and ΔN0 is set such that when Pm is not higher than PA near a midpoint pressure, ΔN0 is 0 and when Pm exceeds PA, ΔN0 is increased with an increase of Pm. Thus, the revolution speed of a prime mover is reduced by mode selection so as to improve fuel economy.
摘要翻译： 当模式选择命令选择经济模式时，模式选择器700e被接通并输出由发动机转速修正值计算部700d计算的发动机转速修正值DeltaN 0（DeltaN 1 = DeltaN 0）。 减速器700f从额定目标转速Nmax中减去发动机转速修正值DeltaN 1，从而计算目标发动机转速NR 2。 计算部700d根据泵送出压力平均值Pm计算发动机转速修正值DeltaN 0。 在存储在存储器中的表中，Pm和DeltaN 0之间的关系被设置为使得当Pm不高于接近中点压力的PA时，DeltaN 0为0，并且当Pm超过PA时，DeltaN 0随着Pm的增加而增加 。 因此，通过模式选择来减少原动机的转速，以提高燃油经济性。
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