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1. 发明授权

US5673558A Hydraulic circuit system for hydraulic excavator 失效
标题翻译：液压挖掘机液压回路系统
公开(公告)号：US5673558A
公开(公告)日：1997-10-07
申请号：US596296
申请日：1996-02-13
申请人： Genroku Sugiyama , Toichi Hirata , Koji Ishikawa , Tsukasa Toyooka , Tsuyoshi Nakamura
发明人： Genroku Sugiyama , Toichi Hirata , Koji Ishikawa , Tsukasa Toyooka , Tsuyoshi Nakamura
IPC分类号： E02F3/43 , E02F3/85 , E02F9/22 , F16D31/02
CPC分类号： E02F9/2282 , E02F9/2228 , E02F9/2242 , E02F9/2285
摘要： For enabling a boom to be smoothly raised during the triple combined operation of boom-up, arm-crowd and bucket-crowd in a hydraulic circuit system for a hydraulic excavator, in a first valve group of a hydraulic valve apparatus (12), a variable throttle valve (70) is installed in a feeder passage (32) of a bucket directional control valve (21) downstream of a load check valve (32a), and a secondary pressure C as a boom-up operation command is introduced through a line (71) to a pilot control sector (70a) of the variable throttle valve (70) which sector operates in the throttling direction, so that when the secondary pressure C is 0 or small, the variable throttle valve (70) is fully opened and, as the secondary pressure C increases, an opening area of the variable throttle valve (70) is reduced to restrict the flow rate of a hydraulic fluid supplied through the bucket directional control valve (21).
摘要翻译： PCT No.PCT / JP95 / 01258 Sec。 371日期1996年2月13日 102（e）日期1996年2月13日PCT提交1995年6月23日PCT公布。公开号WO96 / 00820 日期1996年1月11日为了在液压挖掘机的液压回路系统中，在液压阀装置的第一阀组中，在起重臂，悬臂和斗斗的三重组合操作期间能够平稳地升高起重臂（12）中，可变节流阀（70）安装在负载止回阀（32a）下游的铲斗方向控制阀（21）的供给通路（32）中，作为动臂上升操作的二次压力C 命令通过管线（71）引导到可变节流阀（70）的先导控制扇区（70a），该扇区在节流方向上操作，使得当二次压力C为0或小时，可变节流阀 70）完全打开，并且随着二次压力C增加，可变节流阀（70）的开口面积减小以限制通过铲斗方向控制阀（21）供给的液压流体的流量。

2. 发明授权

US5421155A Hydraulic drive system for hydraulic working machines 失效
标题翻译：液压工程机液压驱动系统
公开(公告)号：US5421155A
公开(公告)日：1995-06-06
申请号：US211417
申请日：1994-03-28
申请人： Toichi Hirata , Genroku Sugiyama , Koji Ishikawa , Masami Ochiai
发明人： Toichi Hirata , Genroku Sugiyama , Koji Ishikawa , Masami Ochiai
IPC分类号： B01D53/02 , B01D53/28 , B01D53/40 , B01D53/46 , B01J20/02 , B01J20/04 , B01J20/26 , E02F9/22 , F15B11/05 , F15B11/16 , F15B21/08 , F16D31/02
CPC分类号： B01D53/28 , B01D53/40 , B01D53/46 , E02F9/2235 , E02F9/2282 , E02F9/2296 , F15B11/055 , F15B11/165 , F15B21/087 , F15B2211/20553 , F15B2211/253 , F15B2211/30505 , F15B2211/3116 , F15B2211/351 , F15B2211/40507 , F15B2211/41554 , F15B2211/6058 , F15B2211/63 , F15B2211/6309 , F15B2211/6316 , F15B2211/6333 , F15B2211/6355 , F15B2211/6652 , F15B2211/7053 , F15B2211/71
摘要： A hydraulic drive system for hydraulic working machines has a variable displacement hydraulic pump, at least one actuator driven by the hydraulic fluid, a directional control valve of center bypass type for controlling the flow of the hydraulic fluid, a center bypass line for connecting the center bypass passage of the control valve to a reservoir and a fixed restrictor disposed in the center bypass line. A first control signal that determines a first target displacement of the hydraulic pump is determined by using the pressure generated by the fixed restrictor. A second control signal is generated for determining a second target displacement of a hydraulic pump. A third control signal, which is the larger one of the first and second control signals, provides a target displacement that is applied to a pump regulator that controls the displacement of the hydraulic pump. A metering characteristic as good as the conventional one can be obtained in the case of a light load, and a satisfactory metering characteristic can be achieved in the case of a heavy load, as a result.
摘要翻译： PCT No.PCT / JP93 / 01188 Sec。 371日期：1994年3月28日 102（e）1994年3月28日PCT 1993年8月25日PCT公布。出版物WO94 / 04828 日期：1994年3月3日。液压工作机械的液压驱动系统具有可变排量液压泵，至少一个由液压流体驱动的致动器，用于控制液压流体流动的中心旁路型方向控制阀，中心旁路管路，用于将控制阀的中心旁路通道连接到储存器;以及固定限流器，设置在中心旁路管线中。确定液压泵的第一目标位移的第一控制信号通过使用由固定限制器产生的压力来确定。生成用于确定液压泵的第二目标排量的第二控制信号。作为第一和第二控制信号中较大者的第三控制信号提供了施加到控制液压泵的排量的泵调节器的目标位移。在轻负载的情况下可以获得与传统的一样好的计量特性，结果在重负载的情况下可以实现令人满意的计量特性。

3. 发明授权

US5447027A Hydraulic drive system for hydraulic working machines 失效
标题翻译：液压工程机液压驱动系统
公开(公告)号：US5447027A
公开(公告)日：1995-09-05
申请号：US302786
申请日：1994-09-12
申请人： Koji Ishikawa , Toichi Hirata , Genroku Sugiyama
发明人： Koji Ishikawa , Toichi Hirata , Genroku Sugiyama
IPC分类号： E02F9/22 , F15B11/04 , F15B11/05 , F16D31/02
CPC分类号： E02F9/2285 , E02F9/2225 , E02F9/2235 , E02F9/2282 , E02F9/2296 , F15B11/04 , F15B11/05 , F15B2211/20553 , F15B2211/255 , F15B2211/30505 , F15B2211/3116 , F15B2211/329 , F15B2211/351 , F15B2211/353 , F15B2211/615 , F15B2211/6309 , F15B2211/6313 , F15B2211/6316 , F15B2211/6326 , F15B2211/633 , F15B2211/6333 , F15B2211/6355 , F15B2211/7053 , F15B2211/71
摘要： A hydraulic drive system comprises a controller (12) and several condition sensors. A boom-up target flow rate setting section determines a boom-up target flow rate based on signals from a pressure sensor (11) and a rotational speed meter (16), a pump delivery rate detecting section determines a pump delivery rate based on signals from a tilt angle sensor (15) and the rotational speed meter (16), a differential pressure detecting section and a center bypass flow rate calculating section determine a center bypass flow rate based on signals from pressure sensors (9, 10), a boom cylinder calculating section determines a boom cylinder flow rate from the pump delivery rate and the center bypass flow rate, and a first pump target displacement volume calculating section calculates a first pump target tilt angle .theta..sub.1 in accordance with the difference between the boom-up target flow rate and the boom cylinder flow rate. In this case, .theta..sub.1 is larger than a second pump target tilt angle .theta..sub.2 for negative control and is selected by a maximum value selecting section. Then, a minimum value selecting section selects the smaller one of .theta..sub.1 and a maximum tilt angle .theta..sub.max determined with horsepower control, and drive signal generating section outputs a corresponding target current to a solenoid proportional valve (13) for driving a piston (6a) of a regulator (6) to the right in FIG. 4.
摘要翻译： PCT No.PCT / JP94 / 00464 Sec。 371日期1994年9月12日 102（e）1994年9月12日PCT PCT 1994年3月23日PCT公布。出版物WO94 / 21925 日期1994年9月29日。液压驱动系统包括控制器（12）和几个状态传感器。动臂上升目标流量设定部基于来自压力传感器（11）和转速计（16）的信号来确定动臂上升目标流量，泵输送速度检测部基于信号来确定泵输送速度从倾斜角传感器（15）和转速计（16），差压检测部和中心旁通流量计算部基于来自压力传感器（9,10），吊杆（9,10）的信号来确定中心旁通流量气缸计算部根据泵输送速度和中心旁通流量来确定起重臂液压缸流量，第一泵目标排量体积计算部根据悬臂上升目标的差计算第一泵目标倾斜角θ1 流量和动臂缸流量。在这种情况下，θ1大于用于负控制的第二泵目标倾斜角θ2，并且由最大值选择部选择。然后，最小值选择部选择通过马力控制确定的θ1中的较小值和最大倾斜角θmax，驱动信号生成部将用于驱动活塞（6a）的电磁比例阀（13）输出对应的目标电流）在图1中右侧的调节器（6）。 4。

4. 发明授权

US06907384B2 Method and system for managing construction machine, and arithmetic processing apparatus 失效
标题翻译：管理施工机械的方法和系统以及运算处理装置
公开(公告)号：US06907384B2
公开(公告)日：2005-06-14
申请号：US10240202
申请日：2001-03-30
申请人： Hiroyuki Adachi , Toichi Hirata , Genroku Sugiyama , Hiroshi Watanabe , Koichi Shibata , Hideki Komatsu , Shuichi Miura , Koji Mitsuya , Yoshiaki Saito , Atsushi Sato
发明人： Hiroyuki Adachi , Toichi Hirata , Genroku Sugiyama , Hiroshi Watanabe , Koichi Shibata , Hideki Komatsu , Shuichi Miura , Koji Mitsuya , Yoshiaki Saito , Atsushi Sato
IPC分类号： E02F9/20 , E02F9/22 , E02F9/26 , G05B23/02 , G06Q50/00 , G06Q50/10 , G07C5/00 , G04F10/00
CPC分类号： G07C5/008 , E02F9/205 , E02F9/2225 , E02F9/2239 , E02F9/226 , E02F9/2292 , E02F9/2296 , E02F9/26 , E02F9/267 , G05B23/0283 , G05B2219/24001 , G05B2219/24055
摘要： A method and system for managing a construction machine whereby working time for each of different parts of a hydraulic excavator is measured. Measured data is stored in a memory of a controller and then transferred to a base station computer via satellite communication to be stored in a database. At each repair/replacement of a part in each hydraulic excavator, the base station computer calculates, based on the operation data, a replacement time interval of the part on the basis of the working time per section to which the part belongs, and then stores and accumulates it. The base station computer also reads the stored data for each hydraulic excavator, determines, for each part, a replacement rate of the part having a substantially equal replacement time interval, and calculates a target replacement time interval of the part in accordance with the replacement time interval corresponding to a maximum replacement rate.
摘要翻译：一种用于管理建筑机械的方法和系统，从而测量液压挖掘机的每个不同部件的工作时间。测量数据存储在控制器的存储器中，然后通过卫星通信传输到基站计算机，以存储在数据库中。在每个液压挖掘机的每次修理/更换零件时，基站计算机基于操作数据，根据部件所属的每个部件的工作时间来计算部件的更换时间间隔，然后存储并积累它。基站计算机还读取每个液压挖掘机的存储数据，为每个部分确定具有基本上相等的更换时间间隔的部件的替换率，并且根据更换时间计算部件的目标更换时间间隔间隔对应于最大替换率。

5. 发明授权

US06898502B2 System for changing function of work machine and base station 有权
标题翻译：改变作业机和基站功能的系统
公开(公告)号：US06898502B2
公开(公告)日：2005-05-24
申请号：US10240398
申请日：2001-03-30
申请人： Hiroshi Watanabe , Koichi Shibata , Hiroyuki Adachi , Toichi Hirata , Genroku Sugiyama , Hideki Komatsu
发明人： Hiroshi Watanabe , Koichi Shibata , Hiroyuki Adachi , Toichi Hirata , Genroku Sugiyama , Hideki Komatsu
IPC分类号： E02F3/43 , E02F9/20 , E02F9/26 , H04L12/28 , G06F19/00 , G07C5/00
CPC分类号： E02F9/26 , E02F3/435 , G05B2219/23297 , G05B2219/2637
摘要： A function changing system of construction machinery includes a hydraulic excavator and a base station. The hydraulic excavator is deployed at a construction site and is provided with a rewritable memory storing control programs and/or data required for control of the machinery, a CPU for reading out the control programs from the memory and executing them, and a communications device The base station is provided with a communications device, a center server for identifying the serial number of the hydraulic excavator and transferring information with the control unit, and a database managed by the center server and storing control programs corresponding to the hydraulic excavator. When changing or switching an attachment of the hydraulic excavator, information is transferred with the center server of the base station and the control programs or data stored in the storage unit are rewritten to enable work suited to the changed part.
摘要翻译：工程机械功能改变系统包括液压挖掘机和基站。液压挖掘机部署在施工现场，并且设置有可重写存储器，其存储用于控制机器所需的控制程序和/或数据; CPU，用于从存储器读出控制程序并执行它们;以及通信设备基站设置有通信设备，用于识别液压挖掘机的序列号并与控制单元传送信息的中央服务器，以及由中央服务器管理的数据库，并存储与液压挖掘机相对应的控制程序。当更换或切换液压挖掘机的附件时，信息与基站的中央服务器一起传送，并且存储在存储单元中的控制程序或数据被重写以使得适合于改变的部分的工作。

6. 发明授权

US06643582B2 Work management method, management system and management apparatus suited to work sites 失效
标题翻译：工作管理方法，管理制度和适合工作场所的管理手段
公开(公告)号：US06643582B2
公开(公告)日：2003-11-04
申请号：US09980101
申请日：2001-11-29
申请人： Hiroyuki Adachi , Toichi Hirata , Genroku Sugiyama , Hiroshi Watanabe , Koichi Shibata , Hideki Komatsu
发明人： Hiroyuki Adachi , Toichi Hirata , Genroku Sugiyama , Hiroshi Watanabe , Koichi Shibata , Hideki Komatsu
IPC分类号： G08G1123
CPC分类号： E02F9/20 , E02F9/2054 , E02F9/26
摘要： The position of a working machine is detected, a position signal representing the detected position is transmitted, the position signal is received, management information relating to the working machine is calculated based on the received position signal, and the calculated management information is transmitted to the working machine. Example of management information is type of attachment depending on soil quality, and weather forecasts.
摘要翻译：检测到工作机械的位置，发送表示检测位置的位置信号，接收位置信号，根据接收到的位置信号计算与作业机械有关的管理信息，将计算出的管理信息发送到工作机。管理信息的示例是根据土壤质量和天气预报的附件类型。

7. 发明授权

US06220028B1 Hydraulic drive system for hydraulic work vehicle 有权
标题翻译：液压工作车液压驱动系统
公开(公告)号：US06220028B1
公开(公告)日：2001-04-24
申请号：US09204068
申请日：1998-12-03
申请人： Kouji Ishikawa , Toichi Hirata , Genroku Sugiyama , Tsukasa Toyooka , Tsuyoshi Nakamura , Yasuharu Gotou
发明人： Kouji Ishikawa , Toichi Hirata , Genroku Sugiyama , Tsukasa Toyooka , Tsuyoshi Nakamura , Yasuharu Gotou
IPC分类号： F16D3102
CPC分类号： E02F9/2296 , B60W2710/0644 , E02F9/2235 , E02F9/2246 , E02F9/26
摘要： A hydraulic drive system is provided with a signal guide system for guiding a delivery pressure of a pump as a command pressure via a line and a port, another signal guide system for guiding a pilot pressure of a pilot pump as another command pressure via a line and a port, a tilting control unit for controlling the displacement of the pump by the command pressures guided to the ports, a controller having a command current-setting unit for setting a relationship between a target engine speed and a command current, a target engine speed-indicating unit for an engine, and a solenoid-operated proportional valve for allowing the pilot pressure of the line to pass as is while no drive signal is outputted from the controller but for being reduced in opening to change the pilot pressure to a smaller value when a drive signal is outputted from the controller.
摘要翻译：液压驱动系统设置有信号引导系统，用于经由管线和端口引导泵的输送压力作为指令压力，另一个信号引导系统用于通过管线引导先导泵的先导压力作为另一个指令压力以及端口，倾斜控制单元，用于通过被引导到端口的指令压力来控制泵的排量;控制器，具有用于设定目标发动机转速和指令电流之间的关系的指令电流设定单元，目标发动机用于发动机的速度指示单元和用于允许线路的先导压力在没有驱动信号从控制器输出但为了减小开启以将先导压力改变为更小的电磁比例阀当从控制器输出驱动信号时的值。

8. 发明授权

US5934879A Pump torque control system 失效
标题翻译：泵扭矩控制系统
公开(公告)号：US5934879A
公开(公告)日：1999-08-10
申请号：US771195
申请日：1996-12-20
申请人： Shigetoshi Konno , Toichi Hirata , Genroku Sugiyama , Shigehiro Yoshinaga , Youichi Kowatari , Kouji Ishikawa
发明人： Shigetoshi Konno , Toichi Hirata , Genroku Sugiyama , Shigehiro Yoshinaga , Youichi Kowatari , Kouji Ishikawa
IPC分类号： E02F9/22 , F04B49/06 , F04B49/00
CPC分类号： E02F9/2246 , E02F9/2235 , E02F9/2296 , B60W2710/0644
摘要： An engine torque, which corresponds to a target engine speed inputted in a controller, is determined by a functional computing function unit. A torque correction value is added to the engine torque, followed by the multiplication with a constant. The product is divided by a pump delivery pressure to determine a pump displacement. A target tilting corresponding to this value is determined by another functional computing function unit, and is then compared with another target tilting which has been determined from a negative control pressure. The smaller one is selected and is outputted as a target tilting. The torque correction value is set at an EEPROM through an input device as desired. Selection of a negative value as the torque correction value makes it possible to prevent occurrence of stalling.
摘要翻译：对应于输入到控制器中的目标发动机转速的发动机扭矩由功能计算功能单元确定。将扭矩校正值加到发动机转矩上，然后与常数相乘。产品除以泵的输送压力以确定泵的排量。对应于该值的目标倾斜由另一功能计算功能单元确定，然后与从负控制压力确定的另一目标倾斜进行比较。选择较小的一个作为目标倾斜输出。转矩校正值根据需要通过输入装置设置在EEPROM上。选择负值作为转矩校正值使得可以防止停止的发生。

9. 发明授权

US5907951A Hydraulic control system for construction machine 失效
标题翻译：施工机械液压控制系统
公开(公告)号：US5907951A
公开(公告)日：1999-06-01
申请号：US35334
申请日：1998-03-05
申请人： Tsukasa Toyooka , Toichi Hirata , Genroku Sugiyama , Kouji Ishikawa , Tsuyoshi Nakamura
发明人： Tsukasa Toyooka , Toichi Hirata , Genroku Sugiyama , Kouji Ishikawa , Tsuyoshi Nakamura
IPC分类号： F04B49/00 , E02F9/22 , F04B1/26 , F16D31/02
CPC分类号： E02F9/2296 , E02F9/2232 , E02F9/2285
摘要： A hydraulic control system according to the present invention for a construction machine is provided with a directional control valve switchable by a pilot control valve, a hydraulic cylinder, a pilot pump, a selector valve for selecting one of a maximum value out of pilot pressures of the pilot control valve, a flow control unit for controlling the flow rate of a variable displacement hydraulic pump, a pressure-reducing valve for converting a delivery pressure of the pilot pump to a pump control signal, which controls driving of the flow control unit, in accordance with a pilot pressure guided to a first signal line connected to the selector valve, a branch line connecting the pilot pump and the pressure-reducing valve with each other, and a second signal line for guiding the pump control signal, which has been converted at the pressure-reducing valve, to the flow control unit.
摘要翻译：根据本发明的用于建筑机械的液压控制系统设置有可由先导控制阀，液压缸，先导泵，先导泵，选择阀切换的方向控制阀，用于从先导控制阀先导控制阀，用于控制可变排量液压泵的流量的流量控制单元，用于将先导泵的输送压力转换为泵控制信号的减压阀，其控制流量控制单元的驱动，根据引导到连接到选择阀的第一信号线的先导压力，连接先导泵和减压阀的分支管线和用于引导泵控制信号的第二信号线在减压阀处转换到流量控制单元。

10. 发明授权

US5442912A Hydraulic recovery device 失效
标题翻译：液压回收装置
公开(公告)号：US5442912A
公开(公告)日：1995-08-22
申请号：US256557
申请日：1994-07-11
申请人： Toichi Hirata , Genroku Sugiyama , Masami Ochiai
发明人： Toichi Hirata , Genroku Sugiyama , Masami Ochiai
IPC分类号： E02F9/22 , F15B11/024 , F16D31/02 , F15B11/16
CPC分类号： E02F9/2282 , E02F9/2221 , E02F9/2296 , F15B11/024 , F15B2011/0243 , F15B2011/0246 , F15B2211/20546 , F15B2211/20576 , F15B2211/30505 , F15B2211/30525 , F15B2211/3058 , F15B2211/3116 , F15B2211/31576 , F15B2211/329 , F15B2211/6303 , F15B2211/6309 , F15B2211/6313 , F15B2211/6316 , F15B2211/6346 , F15B2211/6654 , F15B2211/6655 , F15B2211/67 , F15B2211/7053 , F15B2211/7058 , F15B2211/71 , F15B2211/75 , F15B2211/88
摘要： A hydraulic recovery device in a hydraulic system having a pump (1) driving a plurality of actuators through a plurality of control valves (2, 3), the hydraulic recovery device comprising a variable resistance valve (6, 60) in a first line being controlled by a control signal (Px), a third line, a check valve (7) disposed in the third line for allowing the hydraulic fluid to flow only in a direction from the first line toward the second line. The hydraulic recovery device further comprises (a) detecting apparatus (101; 106; 102a, 102b; 103a, 103b) for detecting a condition variable (Pd; Ph; Pia1, Pia2; Pib1, Pib2) related to an operation of the actuator (4); (b) control apparatus (100; 100A-100H) for receiving a signal from the detecting apparatus and producing a drive signal (i; i*) corresponding to the condition variable based on a relationship stored therein in advance; and (c) control signal generating apparatus (105) for receiving the drive signal and producing the control signal (Px) corresponding to the drive signal, whereby the device can optionally set a characteristic of the variable resistance valve and can avoid abrupt changes in a recovered flow rate.
摘要翻译： PCT No.PCT / JP93 / 01763 Sec。 371日期：1994年7月11日 102（e）日期1994年7月11日PCT 1993年12月3日PCT PCT。第WO94 / 13959号公报日期：1994年6月23日。液压系统中的液压回收装置，具有通过多个控制阀（2,3）驱动多个致动器的泵（1），所述液压回收装置包括可变阻力阀（6， 60）由控制信号（Px）控制，第三线，设置在第三线中的止回阀（7），用于允许液压流体仅沿着从第一线路朝向第二线路的方向流动。液压回收装置还包括（a）检测装置（101; 106; 102a，102b; 103a，103b），用于检测与致动器的操作有关的状态变量（Pd; Ph; Pia1，Pia2; Pib1，Pib2） 4）; （b）控制装置（100; 100A-100H），用于从所述检测装置接收信号，并且根据预先存储的关系产生与所述条件变量相对应的驱动信号（i; i *）; 和（c）用于接收驱动信号并产生对应于驱动信号的控制信号（Px）的控制信号发生装置（105），由此该装置可以可选地设置可变电阻阀的特性，并且可以避免回收流量。

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