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1. 发明申请

US20080236157A1 Engine Lag Down Suppressing Device of Construction Machinery 有权
标题翻译：发动机减速机施工机械
公开(公告)号：US20080236157A1
公开(公告)日：2008-10-02
申请号：US10569490
申请日：2004-08-27
申请人： Yoichi Kowatari , Yasushi Arai , Kouji Ishikawa , Kazunori Nakamura , Nobuei Ariga , Hideo Karasawa , Yuuki Gotou , Motoyuki Yabuuchi
发明人： Yoichi Kowatari , Yasushi Arai , Kouji Ishikawa , Kazunori Nakamura , Nobuei Ariga , Hideo Karasawa , Yuuki Gotou , Motoyuki Yabuuchi
IPC分类号： F16D31/00
CPC分类号： F04B49/08 , E02F9/2246 , E02F9/2285 , E02F9/2296 , F04B17/05 , F15B2211/20553 , F15B2211/633 , F15B2211/6346 , F15B2211/6652 , F15B2211/851
摘要： An engine lag down suppressing device of construction machinery, comprising a vehicle body controller (13) having a first torque control means and a second torque control means, and a third torque control means. The first torque control means controls a torque control valve (7) to the minimum pump torque (value: Min) according to a target engine rotational speed (Nr) when the operating device (5) in the non-operated state of an continues for a monitoring time (TX1) to suppress an engine lag down after a specified holing time to hold a torque to a low pump torque is passed when the operating device in the non-operated state is operated. The second torque control means controls the torque control valve (7) to hold the minimum pump torque for a specified holding time (Tx2) after the operating device (5) in the non-operated state is operated. The third torque control means comprises a solenoid valve (16) and controls the torque control valve (7) to gradually increase the pump torque with elapse of time from a time when the specified holding time (TX2) is passed based on a specified torque increasing rate (K).
摘要翻译：一种工程机械的发动机减速装置，包括具有第一转矩控制装置和第二转矩控制装置的车体控制器（13）和第三转矩控制装置。当处于非操作状态的操作装置（5）持续时，第一扭矩控制装置根据目标发动机转速（Nr）将转矩控制阀（7）控制到最小泵扭矩（值：Min）当处于非操作状态的操作装置被操作时，通过在指定的启动时间之后抑制发动机滞后的监视时间（TX 1），以将扭矩保持在低的泵转矩。在操作非操作状态的操作装置（5）之后，第二转矩控制装置控制转矩控制阀（7）将最小泵转矩保持在指定的保持时间（Tx 2）。第三转矩控制装置包括电磁阀（16），并且控制转矩控制阀（7），以便在从指定的保持时间（TX2）通过指定的转矩时起经过时间逐渐增加泵的转矩增加率（K）。

2. 发明授权

US07255088B2 Engine control system for construction machine 有权
标题翻译：施工机械发动机控制系统
公开(公告)号：US07255088B2
公开(公告)日：2007-08-14
申请号：US10527418
申请日：2004-06-24
申请人： Kazunori Nakamura , Yasushi Arai , Yoichi Kowatari , Kouji Ishikawa , Hideo Karasawa
发明人： Kazunori Nakamura , Yasushi Arai , Yoichi Kowatari , Kouji Ishikawa , Hideo Karasawa
IPC分类号： F02D41/04 , F02D41/14
CPC分类号： F02D31/007 , F02D41/12
摘要： An engine control system includes pressure sensors (73, 74), position sensors (75, 76), pressure sensors (77, 78), a target revolution speed modification value computing unit (90), and a modification value adder (70r). A target revolution speed NR2 for use in control is computed based on changes of status variables such that the target revolution speed NR2 increases from the target revolution speed NR1 applied from an input unit (71), and then moderately returns to the target revolution speed NR1. In accordance with the computed target revolution speed NR2 for use in control, a target fuel injection amount FN1 is computed and a fuel injection amount is controlled. As a result, a drop of an engine revolution speed attributable to an abrupt increase of an engine load can be suppressed without sacrificing the work efficiency, and lowering of durability caused by an excessive increase of the engine revolution speed can be prevented.
摘要翻译：发动机控制系统包括压力传感器（73,74），位置传感器（75,76），压力传感器（77,78），目标转速修正值计算单元（90）和修正值加法器（70r）。根据状态变量的变化，计算目标转速NR2，使得目标转速NR2从从输入单元（71）施加的目标转速NR 1增加，然后适度返回到目标转速NR 1。根据用于控制的计算出的目标转速NR2，计算目标燃料喷射量FN1，并控制燃料喷射量。结果，可以在不牺牲工作效率的情况下抑制由于发动机负载突然增加引起的发动机转速的下降，并且可以防止由于发动机转速过大而导致的耐久性降低。

3. 发明授权

US08266903B2 Engine lag down suppressing device of construction machinery 有权
标题翻译：发动机落后抑制装置的施工机械
公开(公告)号：US08266903B2
公开(公告)日：2012-09-18
申请号：US10569490
申请日：2004-08-27
申请人： Yoichi Kowatari , Yasushi Arai , Kouji Ishikawa , Kazunori Nakamura , Nobuei Ariga , Hideo Karasawa , Yuuki Gotou , Motoyuki Yabuuchi
发明人： Yoichi Kowatari , Yasushi Arai , Kouji Ishikawa , Kazunori Nakamura , Nobuei Ariga , Hideo Karasawa , Yuuki Gotou , Motoyuki Yabuuchi
IPC分类号： F16D31/02
CPC分类号： F04B49/08 , E02F9/2246 , E02F9/2285 , E02F9/2296 , F04B17/05 , F15B2211/20553 , F15B2211/633 , F15B2211/6346 , F15B2211/6652 , F15B2211/851
摘要： An engine lag down control system for construction machinery has a machinery body controller having first, second and third torque control units and a solenoid valve. The first torque control unit controls a torque control valve to a minimum pump torque corresponding to a target number of engine revolutions when a non-operated state of a control device has continued beyond a monitoring time. The second torque control unit controls the torque control valve such that the above-described minimum pump torque is held for a predetermined holding time subsequent to the operation of the control device from the non-operated state. The third torque control unit controls the torque control valve such that from a time point of a lapse of the predetermined holding time, the pump torque is gradually increased on a basis of a predetermined torque increment rate.
摘要翻译：用于工程机械的发动机滞后控制系统具有具有第一，第二和第三扭矩控制单元和电磁阀的机械主体控制器。当控制装置的非操作状态持续超过监视时间时，第一扭矩控制单元将转矩控制阀控制为对应于目标发动机转数的最小泵转矩。第二扭矩控制单元控制扭矩控制阀，使得在控制装置从非操作状态的操作之后，将上述最小泵扭矩保持在预定的保持时间。第三转矩控制单元控制转矩控制阀，使得从经过预定保持时间的时间点起，泵转矩基于预定转矩增量率逐渐增加。

4. 发明授权

US08162618B2 Method and device for controlling pump torque for hydraulic construction machine 有权
标题翻译：液压施工机械泵扭矩控制方法及装置
公开(公告)号：US08162618B2
公开(公告)日：2012-04-24
申请号：US10507888
申请日：2003-11-18
申请人： Kazunori Nakamura , Yoichi Kowatari , Kouji Ishikawa , Yasushi Arai
发明人： Kazunori Nakamura , Yoichi Kowatari , Kouji Ishikawa , Yasushi Arai
IPC分类号： F04B49/00 , F16D31/02
CPC分类号： F04B49/002 , E02F9/2235 , E02F9/226 , E02F9/2292 , E02F9/2296 , F04B17/05 , F04B23/06 , F04B49/065 , F04B49/08
摘要： A current load rate of an engine 10 is computed and a maximum absorption torque of at least one hydraulic pump 1, 2 is controlled so that the load rate is held at a target value. Engine stalling can be prevented by decreasing the maximum absorption torque of the hydraulic pump under a high-load condition. When an engine output lowers due to environmental changes, the use of poor fuel or other reasons, the maximum absorption torque of the hydraulic pump can be decreased without a lowering of the engine revolution speed. Further, the present invention is adaptable for any kinds of factors causing a lowering of the engine output, such as those factors that cannot be predicted in advance or are difficult to detect by sensors. In addition, because of no necessity of sensors, such as environment sensors, the manufacturing cost can be reduced.
摘要翻译：计算发动机10的当前负载率，并且控制至少一个液压泵1,2的最大吸收转矩，使得负载率保持在目标值。通过在高负载条件下减小液压泵的最大吸收扭矩可以防止发动机失速。当发动机输出由于环境变化而降低时，使用不良燃料或其他原因，可以降低液压泵的最大吸收扭矩而不降低发动机转速。此外，本发明适用于导致发动机输出降低的各种因素，例如预先不能预测或难以被传感器检测的那些因素。此外，由于不需要诸如环境传感器的传感器，因此可以降低制造成本。

5. 发明申请

US20060118082A1 Engine control system for construction machine 有权
标题翻译：施工机械发动机控制系统
公开(公告)号：US20060118082A1
公开(公告)日：2006-06-08
申请号：US10527418
申请日：2004-06-24
申请人： Kazunori Nakamura , Yasushi Arai , Yoichi Kowatari , Kouji Ishikawa
发明人： Kazunori Nakamura , Yasushi Arai , Yoichi Kowatari , Kouji Ishikawa
IPC分类号： F02D31/00
CPC分类号： F02D31/007 , F02D41/12
摘要： An engine control system includes pressure sensors (73, 74), position sensors (75, 76), pressure sensors (77, 78), a target revolution speed modification value computing unit (90), and a modification value adder (70r). A target revolution speed NR2 for use in control is computed based on changes of status variables such that the target revolution speed NR2 increases from the target revolution speed NR1 applied from an input unit (71), and then moderately returns to the target revolution speed NR1. In accordance with the computed target revolution speed NR2, a target fuel injection amount FN1 is computed and a fuel injection amount is controlled. As a result, a drop of an engine revolution speed attributable to an abrupt increase of an engine load can be suppressed without sacrificing the work efficiency, and lowering of durability caused by an excessive increase of the engine revolution speed can be prevented.
摘要翻译：发动机控制系统包括压力传感器（73,74），位置传感器（75,76），压力传感器（77,78），目标转速修正值计算单元（90）和修正值加法器（70r）。根据状态变量的变化，计算目标转速NR2，使得目标转速NR2从从输入单元（71）施加的目标转速NR 1增加，然后适度地返回到目标转速NR1。根据计算出的目标转速NR 2，计算目标燃料喷射量FN1，并控制燃料喷射量。结果，可以在不牺牲工作效率的情况下抑制由于发动机负载突然增加引起的发动机转速的下降，并且可以防止由于发动机转速过大而导致的耐久性降低。

6. 发明授权

US5911506A Control system for prime mover and hydraulic pump of hydraulic construction machine 有权
标题翻译：液压施工机械原动机和液压泵控制系统
公开(公告)号：US5911506A
公开(公告)日：1999-06-15
申请号：US166848
申请日：1998-10-06
申请人： Kazunori Nakamura , Ei Takahashi , Tsukasa Toyooka , Kouji Ishikawa , Tsuyoshi Nakamura , Yoichi Kowatari , Tadatoshi Shimamura , Genroku Sugiyama , Toichi Hirata
发明人： Kazunori Nakamura , Ei Takahashi , Tsukasa Toyooka , Kouji Ishikawa , Tsuyoshi Nakamura , Yoichi Kowatari , Tadatoshi Shimamura , Genroku Sugiyama , Toichi Hirata
IPC分类号： E02F9/22 , F15B11/00 , E02F9/20
CPC分类号： E02F9/2285 , E02F9/2235 , E02F9/2246 , E02F9/2282 , E02F9/2292 , E02F9/2296
摘要： A reference pump-delivery-rate calculating portion calculates a reference delivery rate of a hydraulic pump by referring to a table stored in a memory based on a control pilot pressure for the hydraulic pump. A target pump-delivery-rate calculating portion divides the reference delivery rate by a ratio of a maximum revolution speed to a target engine revolution speed, thereby calculating a target delivery rate. A target pump tilting calculating portion divides the target delivery rate by an actual engine revolution speed and a constant, thereby calculating a target tilting. A solenoid output current calculating portion calculates a drive current to provide the target tilting and outputs the drive current to a solenoid control valve. The pump delivery rate is thereby controlled with good response following input change of an operation instructing device.
摘要翻译：参考泵送出速度计算部分基于用于液压泵的控制先导压力参考存储在存储器中的表来计算液压泵的参考输出速率。目标泵输送速度计算部分将参考输出速率除以最大转速与目标发动机转速的比值，由此计算目标输送速率。目标泵倾转计算部将目标输送速度除以实际发动机转速和常数，由此计算目标倾斜。螺线管输出电流计算部分计算驱动电流以提供目标倾斜，并将驱动电流输出到电磁控制阀。由此，在操作指示装置的输入变化之后，以良好的响应来控制泵送出速度。

7. 发明授权

US08429904B2 Working machine 有权
标题翻译：工作机
公开(公告)号：US08429904B2
公开(公告)日：2013-04-30
申请号：US12818433
申请日：2010-06-18
申请人： Kazuhiro Shibamori , Kazunori Nakamura , Kouji Ishikawa , Yoichi Kowatari , Hidenobu Tsukada , Shohei Kamiya , Masanori Ezawa
发明人： Kazuhiro Shibamori , Kazunori Nakamura , Kouji Ishikawa , Yoichi Kowatari , Hidenobu Tsukada , Shohei Kamiya , Masanori Ezawa
IPC分类号： F01N3/00 , F01N3/02
CPC分类号： F01N3/023 , F01N3/0232 , F01N9/002 , F01N2900/1606 , F02D41/029 , F02D2041/228 , F02D2200/0812 , F02D2200/701 , F02D2200/702 , Y02T10/47
摘要： Disclosed is a working machine capable of preventing damage to a filter due to excessive accumulation of particulate matter (PM), even under a situation that requires, prior to compulsory regeneration of the filter, moving the machine to a place in which to perform the regeneration work. The working machine that includes an exhaust treatment device 4 having a filter 6 to trap the PM, a regeneration control section 31 for compulsorily regenerating the filter, and a regeneration instruction device 23 for instructing the regeneration control section 31 to start the compulsory regeneration. Further, when a deposition quantity estimating element determines that an actual PM deposition quantity has reached a deposition alarm level, an alarm device 12 notifies an operator that the time has come to start the movement of the working machine to the place of regeneration.
摘要翻译：公开了一种能够防止由于颗粒物质（PM）的过度积聚而导致的过滤器的损坏的作业机械，即使在强制再生过滤器之前，也需要将机器移动到进行再生的地方工作。包括具有用于捕集PM的过滤器6的废气处理装置4的工作机，用于强制再生过滤器的再生控制部31，以及用于指示再生控制部31开始强制再生的再生指示装置23。此外，当沉积量估计元件确定实际的PM沉积量已经达到沉积报警水平时，报警装置12通知操作者现在是开始将工作机器移动到再生地点的时间。

8. 发明授权

US5930996A Auto-acceleration system for prime mover of hydraulic construction machine and control system for prime mover and hydraulic pump 有权
标题翻译：液压工程机械原动机自动加速系统，原动机和液压泵控制系统
公开(公告)号：US5930996A
公开(公告)日：1999-08-03
申请号：US164365
申请日：1998-10-01
申请人： Kazunori Nakamura , Ei Takahashi , Tsukasa Toyooka , Kouji Ishikawa , Tsuyoshi Nakamura , Yoichi Kowatari , Tadatoshi Shimamura , Genroku Sugiyama , Toichi Hirata
发明人： Kazunori Nakamura , Ei Takahashi , Tsukasa Toyooka , Kouji Ishikawa , Tsuyoshi Nakamura , Yoichi Kowatari , Tadatoshi Shimamura , Genroku Sugiyama , Toichi Hirata
IPC分类号： B60K25/02 , E02F9/22 , F02D29/04 , F04B49/00 , F16D31/02
CPC分类号： E02F9/2296 , E02F9/2235 , E02F9/2246 , E02F9/2282 , E02F9/2285 , E02F9/2292
摘要： In the arm-crowding or track operation, a calculating portion (700d2 or 700d4) calculates a modification gain (KAC or KTR) depending on an operation pilot pressure and a calculating portion (700g) calculates a decrease modification (DND) based on the KAC or KTR, while a calculating portion (700m or 700p) calculates a modification gain (KACH or KTRH) depending on an operation pilot pressure and calculating portions (700q-700s) calculate an increase modification (DNH) based on the KACH or KTRH. A reference target engine revolution speed NR0 is modified using the DND and DNH. In other operations than the arm-crowding and track operations, NR0 is modified using only the decrease modification (DND) calculated from the modification gain just depending on the operation pilot pressure. In the operation where an engine revolution speed is desired to become higher as an actuator load increases, the engine revolution speed can be controlled in accordance with change of the actuator load as well. In other operations, the engine revolution speed can be controlled just depending on the direction and input amount in and by which corresponding operation instructing apparatus is operated.
摘要翻译：在手臂拥挤或轨道操作中，计算部分（700d2或700d4）根据操作先导压力计算修正增益（KAC或KTR），并且计算部分（700g）基于KAC计算减小修改（DND）或KTR，而计算部分（700m或700p）根据操作先导压力计算修正增益（KACH或KTRH），并且计算部分（700q-700s）基于KACH或KTRH计算增加修改（DNH）。使用DND和DNH修改参考目标发动机转速NR0。在除了拥挤和跟踪操作之外的其他操作中，NR0仅使用根据操作先导压力从修改增益计算的减少修改（DND）进行修改。在致动器负载增加时希望发动机转速变高的操作中，也可以根据致动器负载的变化来控制发动机转速。在其他操作中，可以根据相应的操作指示装置的操作方向和输入量来控制发动机转速。

9. 发明申请

US20050071064A1 Signal processing system for construction machine 有权
标题翻译：施工机信号处理系统
公开(公告)号：US20050071064A1
公开(公告)日：2005-03-31
申请号：US10500032
申请日：2003-08-25
申请人： Kazunori Nakamura , Toichi Hirata , Yasushi Arai , Yoichi Kowatari , Gen Yasuda , Hiroshi Watanabe
发明人： Kazunori Nakamura , Toichi Hirata , Yasushi Arai , Yoichi Kowatari , Gen Yasuda , Hiroshi Watanabe
IPC分类号： F04B17/05 , F04B49/00 , F04B49/06 , F15B11/16 , G06F7/70
CPC分类号： F02D29/04 , F04B17/05 , F04B49/002 , F04B49/065 , F04B2201/1202 , F15B11/165 , F15B11/167 , F15B2211/20523 , F15B2211/20553 , F15B2211/20584 , F15B2211/30505 , F15B2211/30525 , F15B2211/3056 , F15B2211/3116 , F15B2211/31576 , F15B2211/329 , F15B2211/50536 , F15B2211/50563 , F15B2211/575 , F15B2211/6054 , F15B2211/63 , F15B2211/6355 , F15B2211/66 , F15B2211/71 , F15B2211/865 , F15B2211/88
摘要： A machine body controller 70A includes a modification control unit 70Ab for computing a torque modification value based on detected signals from environment sensors 75 to 83, and modifies a maximum absorption torque of a hydraulic pump controlled by a basic control unit 70Aa. An engine controller 70B includes a modification control unit 70Bb for computing an injection modification value based on detected the signals from the environment sensors 75 to 83, and modifies a fuel injection state of a fuel injection device 14 controlled by a basic control unit 70Ba. The controllers 70A, 70B further include computation element altering units 171, 181. A communication controller 70C downloads alteration data obtained from an external terminal 150 to the computation element altering units 171, 181, whereby corresponding computation elements contained in the modification control units 70Ab, 70Bb are altered.
摘要翻译：机体控制器70A包括：修改控制单元70Ab，用于基于来自环境传感器75至83的检测信号计算扭矩修正值，并修改由基本控制单元70Aa控制的液压泵的最大吸收扭矩。发动机控制器70B包括用于基于检测到来自环境传感器75至83的信号来计算喷射修改值的修改控制单元70Bb，并且修改由基本控制单元70Ba控制的燃料喷射装置14的燃料喷射状态。控制器70A，70B还包括计算元件改变单元171,181。通信控制器70C将从外部终端150获得的改变数据下载到计算元件改变单元171,181，由此包含在修改控制单元70Ab中的对应的计算元素， 70Bb被改变。

10. 发明授权

US07020553B2 Signal processing system for construction machine 有权
标题翻译：施工机信号处理系统
公开(公告)号：US07020553B2
公开(公告)日：2006-03-28
申请号：US10500032
申请日：2003-08-25
申请人： Kazunori Nakamura , Toichi Hirata , Yasushi Arai , Yoichi Kowatari , Gen Yasuda , Hiroshi Watanabe
发明人： Kazunori Nakamura , Toichi Hirata , Yasushi Arai , Yoichi Kowatari , Gen Yasuda , Hiroshi Watanabe
IPC分类号： F04B49/06 , F04B49/00 , F02D29/04
CPC分类号： F02D29/04 , F04B17/05 , F04B49/002 , F04B49/065 , F04B2201/1202 , F15B11/165 , F15B11/167 , F15B2211/20523 , F15B2211/20553 , F15B2211/20584 , F15B2211/30505 , F15B2211/30525 , F15B2211/3056 , F15B2211/3116 , F15B2211/31576 , F15B2211/329 , F15B2211/50536 , F15B2211/50563 , F15B2211/575 , F15B2211/6054 , F15B2211/63 , F15B2211/6355 , F15B2211/66 , F15B2211/71 , F15B2211/865 , F15B2211/88
摘要： A machine body controller 70A includes a modification control unit 70Ab for computing a torque modification value based on detected signals from environment sensors 75 to 83, and modifies a maximum absorption torque of a hydraulic pump controlled by a basic control unit 70Aa. An engine controller 70B includes a modification control unit 70Bb for computing an injection modification value based on detected the signals from the environment sensors 75 to 83, and modifies a fuel injection state of a fuel injection device 14 controlled by a basic control unit 70Ba. The controllers 70A, 70B further include computation element altering units 171, 181. A communication controller 70C downloads alteration data obtained from an external terminal 150 to the computation element altering units 171, 181, whereby corresponding computation elements contained in the modification control units 70Ab, 70Bb are altered. As a result, it is possible in any environments to approprately modify the maximum absorption torque of the hydraulic pump and the fuel injection state of the injection device, and to sufficiently develop the performance of a construction machine.
摘要翻译：机体控制器70A包括：修改控制单元70 Ab，用于基于来自环境传感器75至83的检测信号计算扭矩修正值，并修改由基本控制单元70Aa控制的液压泵的最大吸收扭矩。发动机控制器70B包括用于基于检测到来自环境传感器75至83的信号计算喷射修改值的修改控制单元70Bb，并且修改由基本控制单元70控制的燃料喷射装置14的燃料喷射状态巴控制器70A，70B还包括计算元件改变单元171,181.通信控制器70C将从外部终端150获得的改变数据下载到计算元件改变单元171,181，由此包含在修改控制中的对应的计算元素单位70 Ab，70 Bb被改变。因此，可以在任何环境中适当地修改液压泵的最大吸收扭矩和注射装置的燃料喷射状态，并且充分发展施工机械的性能。

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