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1. 发明授权

US5813311A Hydraulic control system for hydraulic working machine 失效
标题翻译：液压作业机液压控制系统
公开(公告)号：US5813311A
公开(公告)日：1998-09-29
申请号：US771158
申请日：1996-12-20
申请人： Tsukasa Toyooka , Toichi Hirata , Genroku Sugiyama , Shigehiro Yoshinaga , Kouji Ishikawa , Youichi Kowatari , Tsuyoshi Nakamura
发明人： Tsukasa Toyooka , Toichi Hirata , Genroku Sugiyama , Shigehiro Yoshinaga , Kouji Ishikawa , Youichi Kowatari , Tsuyoshi Nakamura
IPC分类号： E02F9/20 , E02F9/22 , F15B11/16
CPC分类号： E02F9/2285 , E02F9/2228 , E02F9/2282
摘要： A controller 520 has a data portion 520c in which the relationship between a pump delivery pressure and a target opening area of a variable throttle 300a of a control valve 300 is set such that the target opening area is large when the pump delivery pressure is low, and small when the pump delivery pressure is high. An input portion 520a takes in a detection signal from a pump pressure sensor 700, a processing portion 520b reads the data from the data portion 520c and calculates a signal output to a solenoid proportional valve 590, and an output portion 520d converts the calculated signal into a command signal for the solenoid proportional valve 590 and outputs the command signal. Upon receiving the command signal from the controller 520, the solenoid proportional valve 590 produces a command pilot pressure for the control valve 300 corresponding to the input signal and controls the opening area of the variable throttle 300a.
摘要翻译：控制器520具有数据部分520c，其中泵输送压力和控制阀300的可变节流阀300a的目标开口面积之间的关系被设定为当泵输送压力低时目标开口面积大，并且当泵输送压力高时小。输入部分520a从泵压力传感器700接收检测信号，处理部分520b从数据部分520c读取数据，并计算输出到电磁比例阀590的信号，输出部分520d将计算出的信号转换成用于电磁比例阀590的命令信号并输出命令信号。电磁比例阀590从控制器520接收到指令信号时，根据输入信号产生控制阀300的指令先导压力，并控制可变节流阀300a的开度面积。

2. 发明授权

US6101456A Output correcting method in control system, control system, and hydraulic pump control system 失效
标题翻译：控制系统，控制系统，液压泵控制系统的输出校正方法
公开(公告)号：US6101456A
公开(公告)日：2000-08-08
申请号：US817489
申请日：1997-04-15
申请人： Youichi Kowatari , Toichi Hirata , Hidefumi Takegahara , Tsukasa Toyooka , Kouji Ishikawa , Genroku Sugiyama , Shigehiro Yoshinaga
发明人： Youichi Kowatari , Toichi Hirata , Hidefumi Takegahara , Tsukasa Toyooka , Kouji Ishikawa , Genroku Sugiyama , Shigehiro Yoshinaga
IPC分类号： E02F9/20 , E02F9/22 , F04B49/00 , F04B49/06 , F15B11/00 , F15B11/02 , G05B11/36 , G05B13/02 , G05B13/00
CPC分类号： G05B13/0265 , E02F9/2025 , E02F9/2235 , F04B49/065
摘要： A control system wherein a reverse characteristic having a reverse input/output relationship to a target input/output characteristic of a control object, is preset, and a target value for an output of the control object is calculated. A command signal corresponding to the target value then is determined based on the preset reverse characteristic, and the command signal is output to the control object. The control system includes first means for calculating a command signal corresponding to a given target value for the output of the control object based on the preset reverse characteristic, outputting the command signal to the control object, measuring an output of the control object and estimating a deviation between an actual input/output characteristic of the control object and the target input/output characteristic therefor, and storing data on the deviation between the input/output characteristics as learning correction data. The control system further includes second means for reading out the stored learning correction data and correcting the command signal using the learning correction data.
摘要翻译： PCT No.PCT / JP96 / 02517 Sec。 371日期1997年04月15日 102（e）日期1997年04月15日PCT 1996年9月5日提交的一种控制系统，其中具有与控制对象的目标输入/输出特性相反的输入/输出关系的反向特性被预先设定，计算控制对象的输出。基于预设的反向特性来确定与目标值相对应的命令信号，并且将命令信号输出到控制对象。控制系统包括：第一装置，用于基于预设的反向特性来计算对应于控制对象的输出的给定目标值的命令信号，向控制对象输出命令信号，测量控制对象的输出并估计一个控制对象的实际输入/输出特性与其目标输入/输出特性之间的偏差，并且存储关于输入/输出特性之间的偏差的数据作为学习校正数据。控制系统还包括用于读出所存储的学习校正数据并使用学习校正数据校正命令信号的第二装置。

3. 发明授权

US5890303A Hydraulic by-pass circuit for a hydraulic shovel 失效
标题翻译：液压铲的液压旁通回路
公开(公告)号：US5890303A
公开(公告)日：1999-04-06
申请号：US774703
申请日：1996-12-26
申请人： Kouji Ishikawa , Toichi Hirata , Genroku Sugiyama , Tsukasa Toyooka , Youichi Kowatari
发明人： Kouji Ishikawa , Toichi Hirata , Genroku Sugiyama , Tsukasa Toyooka , Youichi Kowatari
IPC分类号： E02F9/22 , F15B11/16 , E02F5/02
CPC分类号： E02F9/2282 , E02F9/2242 , E02F9/2292
摘要： A pilot pressure sensor detects a pilot pressure from an arm operating unit and outputs a pilot pressure signal. A drive signal corresponding to the pilot pressure signal is then outputted from a controller to a solenoid-operated proportional valve. Through the solenoid-operated proportional valve, a pilot pressure is fed to an auxiliary selector valve so that an opening of said auxiliary selector valve becomes greater. Of pressure oil delivered from a first hydraulic pump, a flow rate of the pressure oil to be branched to a side of a by-pass circuit is hence increased. The pressure oil fed through the by-pass circuit passes through a merging directional control valve and is caused to merge with pressure oil fed from a second hydraulic pump. The thus-merged pressure oil is then fed to a hydraulic arm cylinder.
摘要翻译：先导压力传感器检测来自臂操作单元的先导压力并输出先导压力信号。然后将与先导压力信号对应的驱动信号从控制器输出到电磁比例阀。通过电磁比例阀，先导压力被供给辅助选择阀，使得所述辅助选择阀的开度变大。从第一液压泵输送的压力油中，因此分支到旁通回路侧的压力油的流量增加。通过旁通回路供给的压力油通过合流方向控制阀，并与从第二液压泵供给的压力油合并。然后将这样合并的压力油送入液压臂缸。

4. 发明授权

US5848531A Hydraulic drive system for construction machines 失效
标题翻译：施工机械液压驱动系统
公开(公告)号：US5848531A
公开(公告)日：1998-12-15
申请号：US774725
申请日：1997-01-03
申请人： Tsuyoshi Nakamura , Toichi Hirata , Genroku Sugiyama , Tsukasa Toyooka , Youichi Kowatari , Kouji Ishikawa
发明人： Tsuyoshi Nakamura , Toichi Hirata , Genroku Sugiyama , Tsukasa Toyooka , Youichi Kowatari , Kouji Ishikawa
IPC分类号： E02F9/22 , F15B11/028 , F16D31/02
CPC分类号： E02F9/2282 , E02F9/2228 , E02F9/2235 , E02F9/2296
摘要： A hydraulic system for a construction machine includes a hydraulic pump driven by a prime mover, actuators driven by a hydraulic fluid delivered from the hydraulic pump, flow control valves for controlling flow of the hydraulic fluid to the actuators and operation means for operating the flow control valves. A relief value sets a relief pressure for limiting the maximum delivery pressure of the hydraulic pump and relief pressure change means increase or decrease the relief pressure set by the relief valve. The relief pressure change means automatically increase or decrease the relief pressure in accordance with the input amount of the operation means.
摘要翻译：用于建筑机械的液压系统包括由原动机驱动的液压泵，由从液压泵输送的液压流体驱动的致动器，用于控制液压流体到致动器的流量控制阀和用于操作流量控制的操作装置阀门释放值设定用于限制液压泵的最大输送压力的溢流压力，溢流压力改变装置增加或减少由安全阀设定的溢流压力。溢流压力改变装置根据操作装置的输入量自动增加或减小溢流压力。

5. 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。

6. 发明授权

US08424298B2 Pump torque control system for hydraulic construction machine 有权
标题翻译：液压施工机械泵扭矩控制系统
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。

7. 发明申请

US20100186402A1 PUMP TORQUE CONTROL SYSTEM FOR HYDRAULIC CONSTRUCTION MACHINE 有权
标题翻译：液压施工机械泵扭矩控制系统
公开(公告)号：US20100186402A1
公开(公告)日：2010-07-29
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： F15B21/04
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。

8. 发明授权

US07970522B2 Gear shifting control system for work machine 失效
标题翻译：工作机械变速控制系统
公开(公告)号：US07970522B2
公开(公告)日：2011-06-28
申请号：US11909780
申请日：2006-11-09
申请人： Hidenobu Tsukada , Kazunori Nakamura , Youichi Kowatari , Masaki Yoshikawa
发明人： Hidenobu Tsukada , Kazunori Nakamura , Youichi Kowatari , Masaki Yoshikawa
IPC分类号： G06F7/00
CPC分类号： F16H61/0213 , E02F9/2253 , E02F9/26 , F16H59/44 , F16H2061/0087 , F16H2061/0225 , F16H2061/0234 , Y10T74/19251
摘要： A work machine gear shifting control system provides gear shifting conditions for an automatic gear shifting mode in accordance with work site conditions. An area 62 of a display device 49 displays a permissible velocity setting range and setup operation guidance, and another area 64 shows guidance to indicate whether the setting is acceptable or unacceptable. When the traveling velocity falls within the permissible velocity setting range, the displayed guidance changes to indicate that the setting is acceptable. When, in this instance, an operator presses a setup switch 23 with desired timing, a transmission gear shifting control section 45 acquires the prevailing vehicle velocity and velocity ratio (or vehicle velocity), and stores adjustment values in an adjustment value storage section 43 so that the vehicle velocity and velocity ratio become the gear shifting control threshold values for normal gear shifting control (steps S535 to S545).
摘要翻译：工作机械换档控制系统根据工作现场条件为自动变速模式提供换档条件。显示装置49的区域62显示容许速度设定范围和设定操作指导，另一区域64表示指示是否可接受或不可接受的指示。当行驶速度落在容许速度设定范围内时，显示的指示变化，表示设定是可以接受的。在这种情况下，当操作者按期望的时间按下安装开关23时，变速档换档控制部45获取主要的车速和速度比（或车速），并将调整值存储在调整值存储部43中车速和速度比成为正常变速控制的变速控制阈值（步骤S535〜S545）。

9. 发明申请

US20100274436A1 Pedal Lock Control Device for Work Vehicle 有权
标题翻译：工作车踏板锁控制装置
公开(公告)号：US20100274436A1
公开(公告)日：2010-10-28
申请号：US12680941
申请日：2008-09-30
申请人： Katsuaki Kodaka , Hidetoshi Satake , Youichi Kowatari , Yuuki Gotou , Kazuhiro Ichimura
发明人： Katsuaki Kodaka , Hidetoshi Satake , Youichi Kowatari , Yuuki Gotou , Kazuhiro Ichimura
IPC分类号： G06F7/00 , B60T17/22
CPC分类号： E02F9/2004 , G05G1/38 , G05G5/06
摘要： A pedal lock control device for work vehicle includes : a motor driving device that drives a travel hydraulic motor in response to an operation amount of a travel pedal; a locking device that locks the travel pedal in a state of being operated; an instruction device that instructs lock and unlock of the travel pedal by the locking device upon an operation by an operator; a first detection device that detects a first signal change according to an unlock operation which is an operation that reflects an intention of an operator to release the locking device and is other than an unlock operation by the instruction device; a second detection device that detects a second signal change according to an unlock operation which is an operation that reflects an intention of an operator to release the locking device and is other than the unlock operation by the instruction device, with the second signal change being different from the first signal change; and a lock control device that unlocks the locking device when an unlock operation is detected by at least one of the first detection device and the second detection device in a state where the travel pedal is locked by the locking device.
摘要翻译：一种用于工作车辆的踏板锁定控制装置，包括：电动机驱动装置，其响应于行驶踏板的操作量驱动行驶液压马达; 锁定装置，其将行驶踏板锁定在被操作的状态; 指令装置，其在操作者操作时指示由所述锁定装置锁定和解锁所述行驶踏板; 第一检测装置，其根据解锁操作来检测第一信号变化，所述解锁操作是反映操作者释放所述锁定装置的意图的操作，并且除了所述指令装置的解锁操作之外; 第二检测装置，其根据解锁操作来检测第二信号变化，该解锁操作是反映操作者释放锁定装置的意图的操作，并且除了指令装置的解锁操作之外，第二信号变化是不同的从第一个信号变化; 以及锁定控制装置，其在由所述锁定装置锁定所述行驶踏板的状态下，当所述第一检测装置和所述第二检测装置中的至少一个检测到解锁操作时，解锁所述锁定装置。

10. 发明授权

US07912616B2 Gear shifting control device for work machine 有权
标题翻译：工作机械换档控制装置
公开(公告)号：US07912616B2
公开(公告)日：2011-03-22
申请号：US11909339
申请日：2006-11-09
申请人： Hidenobu Tsukada , Youichi Kowatari , Kazunori Nakamura , Masaki Yoshikawa
发明人： Hidenobu Tsukada , Youichi Kowatari , Kazunori Nakamura , Masaki Yoshikawa
IPC分类号： G06F19/00
CPC分类号： F16H61/12 , B29C66/71 , F16H61/061 , F16H2061/0087 , F16H2061/1208 , F16H2061/1216 , F16H2342/04
摘要： A work machine gear shifting control device is capable of readily identifying the cause of failure in learning the clutch hydraulic pressure for operating a transmission clutch. A transmission gear shifting control section 46 is provided for each of clutches 61-65, and performs a learning process in which each of a plurality of handling processes learns the clutch hydraulic pressure for each of the clutches 61-65 and determines the clutch hydraulic pressure characteristic values for operating the individual clutches. Further, the transmission gear shifting control section 46 performs a learning monitoring process in each of the plurality of handling processes to formulate an error judgment, which indicates whether learning has failed in each of the plurality of subprocesses, and displays the result of the judgment.
摘要翻译：作业机械变速控制装置能够容易地识别用于操作变速离合器的离合器液压学习失败的原因。为每个离合器61-65提供变速器变速控制部分46，并且执行学习过程，其中多个处理过程中的每个处理过程学习每个离合器61-65的离合器液压，并且确定离合器液压用于操作各个离合器的特征值。此外，变速档换档控制部分46在多个处理过程中的每一个执行学习监视处理，以形成指示在多个子处理中的每一个中学习是否失败的错误判断，并且显示判断结果。

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