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1. 发明申请

US20070204605A1 Control System for Traveling Working Vehicle 有权
标题翻译：旅行车辆控制系统
公开(公告)号：US20070204605A1
公开(公告)日：2007-09-06
申请号：US11632768
申请日：2005-11-11
申请人： Kentaro Itoga , Kazunori Nakamura , Tsuyoshi Nakamura , Motoyuki Yabuuchi
发明人： Kentaro Itoga , Kazunori Nakamura , Tsuyoshi Nakamura , Motoyuki Yabuuchi
IPC分类号： F16D31/02
CPC分类号： B60W10/30 , B60W10/06 , E02F9/2235 , E02F9/2246 , E02F9/2296 , F02D29/02 , F04B17/05 , F04B49/065 , F16H2059/467
摘要： A traveling working vehicle maintains fuel economy while ensuring a sufficient work rate in heavy-load work A torque control regulator 26 controls the absorption torque of a hydraulic pump 22 to ensure that it does not exceed a preset maximum absorption torque, and an accelerator pedal 12 commands a target revolution speed of an engine 1. Revolution speed deviation computing sections 52 and 62, a modification torque computing section 53, a modification revolution speed computing section 63, speed ratio computing sections 54 and 64, traveling state determining sections 55 and 65, and working state determining sections 56 and 66 determine an operating state of the traveling working vehicle. Both the pump base torque of the hydraulic pump 22 and the target revolution speed of the engine 1 are modified depending on the determination result of the state determining sections.
摘要翻译：行驶工作车辆在重载工作中确保足够的工作速度的同时保持燃料经济性。扭矩控制调节器26控制液压泵22的吸收扭矩，以确保其不超过预设的最大吸收扭矩，并且加速器踏板12 命令发动机的目标转速1.转速偏差运算部52,62，变形转矩运算部53，变形转速运算部63，变速比计算部54,64，行驶状态判定部55,65，工作状态判定部56,66决定行驶工作车辆的运转状态。液压泵22的泵基座扭矩和发动机1的目标转速都根据状态判定部的判定结果进行修正。

2. 发明授权

US07543447B2 Control system for traveling working vehicle 有权
标题翻译：行驶车辆控制系统
公开(公告)号：US07543447B2
公开(公告)日：2009-06-09
申请号：US11632768
申请日：2005-11-11
申请人： Kentaro Itoga , Kazunori Nakamura , Tsuyoshi Nakamura , Motoyuki Yabuuchi
发明人： Kentaro Itoga , Kazunori Nakamura , Tsuyoshi Nakamura , Motoyuki Yabuuchi
IPC分类号： F16D31/02
CPC分类号： B60W10/30 , B60W10/06 , E02F9/2235 , E02F9/2246 , E02F9/2296 , F02D29/02 , F04B17/05 , F04B49/065 , F16H2059/467
摘要： A traveling working vehicle maintains fuel economy while ensuring a sufficient work rate in heavy-load work.A torque control regulator 26 controls the absorption torque of a hydraulic pump 22 to ensure that it does not exceed a preset maximum absorption torque, and an accelerator pedal 12 commands a target revolution speed of an engine 1. Revolution speed deviation computing sections 52 and 62, a modification torque computing section 53, a modification revolution speed computing section 63, speed ratio computing sections 54 and 64, traveling state determining sections 55 and 65, and working state determining sections 56 and 66 determine an operating state of the traveling working vehicle. Both the pump base torque of the hydraulic pump 22 and the target revolution speed of the engine 1 are modified depending on the determination result of the state determining sections.
摘要翻译：行驶中的工作车辆保持燃油经济性，同时确保重载工作中的足够的工作速度。扭矩控制调节器26控制液压泵22的吸收扭矩，以确保其不超过预设的最大吸收扭矩，并且加速器踏板12命令发动机1的目标转速。转速偏差运算部52和62 变更转矩运算部53，变速转速运算部63，变速比计算部54,64，行驶状态判定部55,65以及工作状态判定部56,66决定行驶工作车辆的运转状态。液压泵22的泵基座扭矩和发动机1的目标转速都根据状态判定部的判定结果进行修正。

3. 发明授权

US07913801B2 Steering device for construction vehicle 失效
标题翻译：施工车辆转向装置
公开(公告)号：US07913801B2
公开(公告)日：2011-03-29
申请号：US12523937
申请日：2008-01-22
申请人： Tsuyoshi Nakamura , Kentaro Itoga , Hiroyuki Azuma , Kazunori Nakamura
发明人： Tsuyoshi Nakamura , Kentaro Itoga , Hiroyuki Azuma , Kazunori Nakamura
IPC分类号： B62D5/04
CPC分类号： B62D1/22 , B62D5/09 , B62D12/00 , E02F9/2228 , E02F9/225 , E02F9/2285
摘要： To provide a steering system for a construction vehicle, which is suited not only for traveling on general roadways but also for work at construction sites and can perform high-reliability steering control.A steering system for a construction vehicle is provided with a directional control valve 5 for controlling a flow of pressure oil to body-articulating hydraulic cylinders 2 that perform steering and also with a steering-wheel-operated signal generation means 6 for outputting by operation of a steering wheel 7a a pilot signal to the directional control valve 5 for switching the valve 5. The steering system is also provided with a lever-operated signal generation means for producing by operation of a lever 10a a pilot signal to switch the directional control valve 5, said lever-operated signal generation means including pressure-proportional solenoid valves 12a,12b or the like, selector valves 13a,13b switchable to permit selectively outputting the pilot signal from one of the signal generation means to the directional control valve 5, and an automated switching means for switching the selector valves 13a,13b such that upon operation of the steering wheel 7a, the pilot signal from the steering-wheel-operated signal generation means 6 can be preferentially outputted to the directional control valve 5.
摘要翻译：提供一种适用于工程车辆的转向系统，不仅适用于一般道路行驶，而且适用于施工现场的工作，还可进行高可靠性的转向控制。用于施工车辆的转向系统设置有用于控制压力油流向执行转向的身体关节液压缸2的方向控制阀5，以及用于通过操作输出的方向盘操作信号产生装置6输出方向盘7a向方向控制阀5提供用于切换阀5的导向信号。转向系统还设置有操作杆操作信号产生装置，用于通过操作杆10a产生一个导向信号以切换方向控制阀如图5所示，所述杠杆操作信号发生装置包括比例电磁阀12a，12b等，切换阀13a，13b可切换以允许选择性地将信号从信号发生装置中的一个输出到方向控制阀5;以及用于切换选择阀13a，13b的自动切换装置，使得在方向盘7a操作时，来自s的导频信号可以将方向盘操作信号发生装置6优先输出到方向控制阀5。

4. 发明授权

US07370475B2 Traveling hydraulic working machine 有权
标题翻译：行走液压作业机
公开(公告)号：US07370475B2
公开(公告)日：2008-05-13
申请号：US10543920
申请日：2004-11-15
申请人： Tsuyoshi Nakamura , Kazunori Nakamura , Toichi Hirata , Genroku Sugiyama , Kentaro Itoga
发明人： Tsuyoshi Nakamura , Kazunori Nakamura , Toichi Hirata , Genroku Sugiyama , Kentaro Itoga
IPC分类号： F16D31/02
CPC分类号： B60W10/30 , B66F9/0655 , B66F9/20 , E02F9/2235 , E02F9/2296 , F04B49/065 , F04B2203/0603 , F16H2059/467
摘要： A modification torque ΔT and a torque converter speed ratio e is computed from input and output revolution speeds of a torque converter 31. A first determination coefficient α corresponding to the speed ratio e, and a second determination coefficient β corresponding to a pump pressure are computed. A selector 87 selects the smaller one of these coefficients as a determination coefficient γ, and the modification torque ΔT is multiplied by γ to provide a modification torque ΔTA. An adder 89 adds the modification torque ΔTA (negative value) to a pump base torque TR to provide a modified pump base torque TRA, whereby a maximum pump absorption torque TRA is controlled so as to become TRA. The maximum pump torque reducing control can then be performed while accurately confirming a work situation during the combined operation of travel and a working actuator.
摘要翻译：根据变矩器31的输入和输出转速来计算修正转矩DeltaT和变矩器速比e。计算对应于速比e的第一确定系数α和对应于泵压的第二确定系数β。选择器87选择这些系数中的较小的一个作为确定系数γ，并且将修正转矩DeltaT乘以伽玛以提供修改转矩DeltaTA。加法器89将修正转矩DeltaTA（负值）与泵基本转矩TR相加以提供改进的泵基本转矩TRA，由此控制最大泵吸收转矩TRA以变成TRA。然后可以在行驶和工作执行器的组合操作期间精确地确认工作情况的同时执行最大泵扭矩降低控制。

5. 发明申请

US20100101888A1 Steering Device For Construction Vehicle 失效
标题翻译：施工车辆转向装置
公开(公告)号：US20100101888A1
公开(公告)日：2010-04-29
申请号：US12523937
申请日：2008-01-22
申请人： Tsuyoshi Nakamura , Kentaro Itoga , Hiroyuki Azuma , Kazunori Nakamura
发明人： Tsuyoshi Nakamura , Kentaro Itoga , Hiroyuki Azuma , Kazunori Nakamura
IPC分类号： B62D5/09
CPC分类号： B62D1/22 , B62D5/09 , B62D12/00 , E02F9/2228 , E02F9/225 , E02F9/2285
摘要： [Problem] To provide a steering system for a construction vehicle, which is suited not only for traveling on general roadways but also for work at construction sites and can perform high-reliability steering control.[Solution] A steering system for a construction vehicle is provided with a directional control valve 5 for controlling a flow of pressure oil to body-articulating hydraulic cylinders 2 that perform steering and also with a steering-wheel-operated signal generation means 6 for outputting by operation of a steering wheel 7a a pilot signal to the directional control valve 5 for switching the valve 5. The steering system is also provided with a lever-operated signal generation means for producing by operation of a lever 10a a pilot signal to switch the directional control valve 5, said lever-operated signal generation means including pressure-proportional solenoid valves 12a,12b or the like, selector valves 13a,13b switchable to permit selectively outputting the pilot signal from one of the signal generation means to the directional control valve 5, and an automated switching means for switching the selector valves 13a,13b such that upon operation of the steering wheel 7a, the pilot signal from the steering-wheel-operated signal generation means 6 can be preferentially outputted to the directional control valve 5.
摘要翻译： [问题]提供一种用于施工车辆的转向系统，其不仅适用于在一般道路上行驶，而且适用于在施工现场的工作，并且可以执行高可靠性的转向控制。 [解决方案]用于施工车辆的转向系统设置有用于控制压力油流向执行转向的身体关节液压缸2的方向控制阀5以及用于输出的方向盘操作信号产生装置6 方向盘7a通过操作方向控制阀5的导向信号来切换阀5.转向系统还设置有杆操作信号产生装置，用于通过杆10a的操作产生一个导向信号，以切换方向控制阀5，所述杠杆操作信号发生装置包括比例电磁阀12a，12b等，切换阀13a，13b可切换到允许选择性地将导频信号从信号发生装置之一输出到方向控制阀以及用于切换选择阀13a，13b的自动切换装置，使得在方向盘7a操作时，导频信号从方向盘操作信号发生装置6可以优先输出到方向控制阀5。

6. 发明授权

US07512471B2 Control device for working vehicle 有权
标题翻译：工作车辆控制装置
公开(公告)号：US07512471B2
公开(公告)日：2009-03-31
申请号：US10545322
申请日：2004-08-10
申请人： Kazunori Nakamura , Tsuyoshi Nakamura , Kentaro Itoga , Genroku Sugiyama
发明人： Kazunori Nakamura , Tsuyoshi Nakamura , Kentaro Itoga , Genroku Sugiyama
IPC分类号： F02D29/00 , G06G7/70
CPC分类号： E02F9/2296 , B60W10/04 , B60W10/06 , B60W10/103 , B60W10/30 , B60W30/1819 , B60W30/1882 , B60Y2200/415 , E02F9/2235 , E02F9/2246 , F02D29/02 , F02D2250/18 , F04B49/065 , F04B2203/0603 , F04B2203/0605 , F16H61/46 , F16H61/468
摘要： The invention provides a control system for a working vehicle, which can realize higher work performance and better fuel economy in a compatible way. A controller 10 includes table 10a, 10b and tables 10e, 10f for deciding maximum pump absorption torques and engine output torques based on an engine revolution speed, and selectors 10c, 10g for switching over the decided maximum pump absorption torques and engine output torques depending on a work performance mode or a fuel economy mode is selected. A pump absorption torque characteristic for the fuel economy mode is set so as to provide a relative small maximum pump absorption torques TB in a high revolution range, and an engine output characteristic for the fuel economy mode is set so as to provide a relatively small engine output torque in the high revolution range.
摘要翻译：本发明提供一种用于工作车辆的控制系统，其可以以兼容的方式实现更高的工作性能和更好的燃料经济性。控制器10包括用于基于发动机转速决定最大泵吸收扭矩和发动机输出转矩的表10a，10b和表10e，10f，以及用于切换所决定的最大泵吸收转矩和根据发动机输出转矩的发动机输出转矩的选择器10c，选择工作性能模式或燃料经济模式。设定用于燃料经济性模式的泵吸收扭矩特性，以便在高转速范围内提供相对较小的最大泵吸收扭矩TB，并且设定用于燃料经济性模式的发动机输出特性以便提供相对较小的发动机输出转矩在高转速范围内。

7. 发明申请

US20080209903A1 Hydraulic Drive Device for Working Vehicle 审中-公开
标题翻译：工作车液压驱动装置
公开(公告)号：US20080209903A1
公开(公告)日：2008-09-04
申请号：US11632345
申请日：2005-07-05
申请人： Kentaro Itoga , Tsuyoshi Nakamura , Kazunori Nakamura
发明人： Kentaro Itoga , Tsuyoshi Nakamura , Kazunori Nakamura
IPC分类号： F15B11/00
CPC分类号： B62D5/07 , E02F9/2235 , E02F9/225 , E02F9/2296
摘要： [Object] To materialize a reduction in pump loss, the assurance of sufficient working device speeds and the priority assurance of an adequate steering capacity with simpler construction and at lower cost than a load sensing system.[Means for Achieving the Object] A hydraulic drive system for a working vehicle is provided with a priority valve for dividing pressure oil, which has been delivered from a variable displacement hydraulic pump, to give oil flow priority to a steering mechanism, plural working device actuators and a steering actuator driven by pressure oil from the priority valve, plural working device control valves for controlling flows of pressure oil to the respective working device actuators, a steering control valve for controlling a flow of pressure oil to the steering actuator, a control stroke detection means for detecting control strokes for the working device control valves, and a pump flow-rate control means for controlling a flow rate of the variable displacement hydraulic pump on the basis of a detection output from the control stroke detection means.
摘要翻译： [目标]实现减少泵损失，确保足够的工作装置速度，并确保足够的转向能力，具有更简单的结构，成本低于负载传感系统。实现对象的手段作业车辆的液压驱动系统设置有用于分离从可变排量液压泵输送的压力油的优先阀，以向转向机构赋予油流优先权，多个作业装置执行器和由优先阀的压力油驱动的转向致动器，用于控制压力油流到各个工作装置致动器的多个工作装置控制阀，用于控制向转向致动器的压力油流动的转向控制阀，控制用于检测工作装置控制阀的控制行程的行程检测装置，以及用于根据来自控制行程检测装置的检测输出来控制可变排量液压泵的流量的泵流量控制装置。

8. 发明申请

US20060201147A1 Traveling hydraulic working machine 有权
标题翻译：行走液压作业机
公开(公告)号：US20060201147A1
公开(公告)日：2006-09-14
申请号：US10543920
申请日：2004-11-15
申请人： Tsuyoshi Nakamura , Kazunori Nakamura , Toichi Hirata , Genroku Sugiyama , Kentaro Itoga
发明人： Tsuyoshi Nakamura , Kazunori Nakamura , Toichi Hirata , Genroku Sugiyama , Kentaro Itoga
IPC分类号： F16D31/02
CPC分类号： B60W10/30 , B66F9/0655 , B66F9/20 , E02F9/2235 , E02F9/2296 , F04B49/065 , F04B2203/0603 , F16H2059/467
摘要： A modification torque computing unit 83 computes a modification torque ΔT and a torque converter speed ratio e is computed from input and output revolution speeds of a torque converter 31. A first determination coefficient α corresponding to the speed ratio e, and a second determination coefficient β corresponding to a pump pressure are computed. A selector 87 selects the smaller one of these coefficients as a determination coefficient γ, and the modification torque ΔT is multiplied by γ to provide a modification torque ΔTA. An adder 89 adds the modification torque ΔTA (negative value) to a pump base torque TR to provide a modified pump base torque TRA, whereby a maximum pump absorption torque TRA is controlled so as to become TRA. The maximum pump torque reducing control can then be performed while accurately confirming a work situation during the combined operation of travel and a working actuator.
摘要翻译：修改扭矩计算单元83计算修正转矩DeltaT，并且由变矩器31的输入和输出转速计算变矩器速度比e。计算对应于速比e的第一确定系数α和对应于泵压的第二确定系数β。选择器87选择这些系数中的较小的一个作为确定系数γ，并且将修正转矩DeltaT乘以伽玛以提供修改转矩DeltaTA。加法器89将修正转矩DeltaTA（负值）与泵基本转矩TR相加以提供改进的泵基本转矩TRA，由此控制最大泵吸收转矩TRA以变成TRA。然后可以在行驶和工作执行器的组合操作期间精确地确认工作情况的同时执行最大泵扭矩降低控制。

9. 发明申请

US20060167607A1 Control device for working vehicle 有权
标题翻译：工作车辆控制装置
公开(公告)号：US20060167607A1
公开(公告)日：2006-07-27
申请号：US10545322
申请日：2004-08-10
申请人： Kazunori Nakamura , Tsuyoshi Nakamura , Kentaro Itoga
发明人： Kazunori Nakamura , Tsuyoshi Nakamura , Kentaro Itoga
IPC分类号： G05D1/00 , G06F19/00
CPC分类号： E02F9/2296 , B60W10/04 , B60W10/06 , B60W10/103 , B60W10/30 , B60W30/1819 , B60W30/1882 , B60Y2200/415 , E02F9/2235 , E02F9/2246 , F02D29/02 , F02D2250/18 , F04B49/065 , F04B2203/0603 , F04B2203/0605 , F16H61/46 , F16H61/468
摘要： The invention provides a control system for a working vehicle, which can realize higher work performance and better fuel economy in a compatible way. A controller 10 includes tables 10a, 10b and tables 10e, 10f for deciding maximum pump absorption torques and engine output torques based on an engine revolution speed, and selectors 10c, 10g for switching over the decided maximum pump absorption torques and engine output torques depending on a work performance mode or a fuel economy mode is selected. A pump absorption torque characteristic for the fuel economy mode is set so as to provide a relatively small maximum pump absorption torques TB in a high revolution range, and an engine output characteristic for the fuel economy mode is set so as to provide a relatively small engine output torque in the high revolution range.
摘要翻译：本发明提供一种用于工作车辆的控制系统，其可以以兼容的方式实现更高的工作性能和更好的燃料经济性。控制器10包括用于基于发动机转速决定最大泵吸收转矩和发动机输出转矩的表格10a，10b和表10e，10f，以及用于切换所确定的最大泵吸收转矩的选择器10c，10g 并且选择取决于工作性能模式或燃料经济模式的发动机输出转矩。设定用于燃料经济性模式的泵吸收扭矩特性，以便在高转速范围内提供相对较小的最大泵吸收扭矩TB，并且设定用于燃料经济性模式的发动机输出特性以便提供相对较小的发动机输出转矩在高转速范围内。

10. 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）。

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