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1. 发明授权

US07856951B2 Control apparatus and control method for hydraulically driven cooling fan 有权
标题翻译：液压驱动冷却风扇的控制装置及控制方法
公开(公告)号：US07856951B2
公开(公告)日：2010-12-28
申请号：US11922835
申请日：2006-07-06
申请人： Mitsuhiko Kamado , Shigeru Yamamoto , Tomohiro Nakagawa
发明人： Mitsuhiko Kamado , Shigeru Yamamoto , Tomohiro Nakagawa
IPC分类号： F01P7/10
CPC分类号： F01P7/044 , F01P5/043
摘要： An invention relating to a control apparatus and a control method for a hydraulically driven cooling fan for reducing the peak pressure produced upon reversing the switch position of a switching valve, without stopping an engine, and without greatly modifying existing hydraulic circuitry or increasing the apparatus cost. In the invention, in the case that a reversing switch has been operated so as to output a reversal processing commencement instruction signal, control is carried out such that, under the condition that the rotational speed of the engine has decreased to not more than a stipulated rotational speed, capacity adjusting means is controlled, so as to reduce the capacity of a hydraulic pump, and thus reduce the fan rotational speed, and then the switch position of the switching valve is reversed.
摘要翻译：一种用于液压驱动的冷却风扇的控制装置和控制方法的发明，用于在不停止发动机的情况下减少在切换阀的开关位置反转时产生的峰值压力，并且不会大大改变现有的液压回路或增加设备成本。在本发明中，在反转开关被操作以输出反转处理开始指示信号的情况下，进行控制，使得在发动机的转速降低到规定值以下的条件下旋转速度，容量调节装置被控制，以便降低液压泵的容量，从而降低风扇转速，然后切换阀的开关位置反转。

2. 发明申请

US20090013810A1 Work Vehicle Controller 有权
标题翻译：工作车辆控制器
公开(公告)号：US20090013810A1
公开(公告)日：2009-01-15
申请号：US12086706
申请日：2006-11-30
申请人： Tomohiro Nakagawa , Shigeru Yamamoto , Mitsuhiko Kamado
发明人： Tomohiro Nakagawa , Shigeru Yamamoto , Mitsuhiko Kamado
IPC分类号： F16H59/00
CPC分类号： B60W30/18036 , B60W10/02 , B60W10/184 , E02F9/2083 , F16D2500/3024 , F16D2500/3102 , F16D2500/3108 , F16D2500/31466 , F16D2500/50296 , F16H61/0246 , F16H2312/09 , Y10T74/19251
摘要： A device is provided which eliminates uncomfortable operation feeling, improves the working efficiency, and reduces thermal load on a clutch and transmission shock. It is determined whether the current travel direction of the vehicle body is a forward travel direction F or a reverse travel direction R based on an operation position selected by a travel operation lever, clutch oil pressure of the forward clutch or reverse clutch, and a detected vehicle body speed. Braking force of a brake device is controlled such that the brake device is activated on the conditions that the travel direction position selected by the travel operation lever and the travel direction determined by a travel direction flag are opposite to each other, and the detected vehicle body speed is equal to or greater than a predetermined threshold value.
摘要翻译：提供了一种消除了不舒服的操作感觉，提高了工作效率并降低了离合器的热负荷和传输冲击的装置。基于由行驶操作杆选择的操作位置，前进离合器或倒车离合器的离合器油压，以及检测到的行驶方向，确定车身的当前行驶方向是前进行驶方向F还是倒退行驶方向R 车身速度。控制制动装置的制动力，使得制动装置在由行驶操作杆选择的行驶方向位置和由行驶方向标志确定的行进方向彼此相反的条件下被启动，并且检测到的车体速度等于或大于预定阈值。

3. 发明申请

US20090120386A1 Control Apparatus and Control Method for Hydraulically Driven Cooling Fan 有权
标题翻译：液压驱动冷却风扇的控制装置及控制方法
公开(公告)号：US20090120386A1
公开(公告)日：2009-05-14
申请号：US11922835
申请日：2006-07-06
申请人： Mitsuhiko Kamado , Shigeru Yamamoto , Tomohiro Nakagawa
发明人： Mitsuhiko Kamado , Shigeru Yamamoto , Tomohiro Nakagawa
IPC分类号： F01P7/04 , F15B11/04
CPC分类号： F01P7/044 , F01P5/043
摘要： An invention relating to a control apparatus and a control method for a hydraulically driven cooling fan for reducing the peak pressure produced upon reversing the switch position of a switching valve, without stopping an engine, and without greatly modifying existing hydraulic circuitry or increasing the apparatus cost. In the invention, in the case that a reversing switch has been operated so as to output a reversal processing commencement instruction signal, control is carried out such that, under the condition that the rotational speed of the engine has decreased to not more than a stipulated rotational speed, capacity adjusting means is controlled, so as to reduce the capacity of a hydraulic pump, and thus reduce the fan rotational speed, and then the switch position of the switching valve is reversed.
摘要翻译：一种用于液压驱动的冷却风扇的控制装置和控制方法的发明，用于在不停止发动机的情况下减小在切换阀的开关位置反转时产生的峰值压力，并且不会大大改变现有的液压回路或增加设备成本。在本发明中，在反转开关被操作以输出反转处理开始指示信号的情况下，进行控制，使得在发动机的转速降低到规定值以下的条件下旋转速度，容量调节装置被控制，以便降低液压泵的容量，从而降低风扇转速，然后切换阀的开关位置反转。

4. 发明授权

US06959671B2 Cooling system for work machine 有权
标题翻译：工作机冷却系统
公开(公告)号：US06959671B2
公开(公告)日：2005-11-01
申请号：US10785532
申请日：2004-02-23
申请人： Tomohiro Nakagawa , Shigeru Yamamoto , Mitsuhiko Kamado
发明人： Tomohiro Nakagawa , Shigeru Yamamoto , Mitsuhiko Kamado
IPC分类号： E02F9/00 , B60K11/04 , E02F9/08 , E02F9/22 , F01P5/04 , F01P7/04 , F01P7/10 , F01P11/12 , F16D31/02
CPC分类号： E02F9/2292 , E02F9/0866 , E02F9/0875 , E02F9/2075 , E02F9/2235 , E02F9/226 , E02F9/2296 , F01P5/043 , F16D2300/021
摘要： A cooling system for use in a work machine is provided, in which an increase in the load imposed on a fan driving circuit and occurrence of abnormal noise can be prevented without fail by means of an inexpensive arrangement at the time of switching the rotating direction of a cooling fan. To this end, the cooling system comprises: (1) a variable displacement hydraulic pump driven by the engine; (2) a forwardly and reversely rotatable hydraulic motor operated by hydraulic oil supplied from the hydraulic pump; (3) a cooling fan driven by the hydraulic motor; (4) an electromagnetic selector valve for switching the rotating direction of the hydraulic motor between a forward direction and a reverse direction; (5) controlling means for controlling switching of the electromagnetic selector valve and controlling the hydraulic pump so as to minimize the discharge oil rate of the hydraulic pump during switching of the electromagnetic selector valve.
摘要翻译：提供了一种用于作业机械的冷却系统，其中通过在切换旋转方向时的廉价布置，可以在不失败的情况下防止施加在风扇驱动电路上的负载的增加和异常噪声的发生一个冷却风扇为此，冷却系统包括：（1）由发动机驱动的可变排量液压泵; （2）由液压泵供应的液压油操作的向前和反向旋转的液压马达; （3）由液压马达驱动的冷却风扇; （4）用于在正向和反向之间切换液压马达的旋转方向的电磁选择阀; （5）用于控制电磁切换阀的切换和控制液压泵的控制装置，以便在切换电磁选择阀期间使液压泵的排出油量最小化。

5. 发明申请

US20050183417A1 COOLING SYSTEM FOR WORK MACHINE 有权
标题翻译：工作机冷却系统
公开(公告)号：US20050183417A1
公开(公告)日：2005-08-25
申请号：US10785532
申请日：2004-02-23
申请人： Tomohiro Nakagawa , Shigeru Yamamoto , Mitsuhiko Kamado
发明人： Tomohiro Nakagawa , Shigeru Yamamoto , Mitsuhiko Kamado
IPC分类号： E02F9/00 , B60K11/04 , E02F9/08 , E02F9/22 , F01P5/04 , F01P7/04 , F01P7/10 , F01P11/12 , F16D31/02
CPC分类号： E02F9/2292 , E02F9/0866 , E02F9/0875 , E02F9/2075 , E02F9/2235 , E02F9/226 , E02F9/2296 , F01P5/043 , F16D2300/021
摘要： A cooling system for use in a work machine is provided, in which an increase in the load imposed on a fan driving circuit and occurrence of abnormal noise can be prevented without fail by means of an inexpensive arrangement at the time of switching the rotating direction of a cooling fan. To this end, the cooling system comprises: (1) a variable displacement hydraulic pump driven by the engine; (2) a forwardly and reversely rotatable hydraulic motor operated by hydraulic oil supplied from the hydraulic pump; (3) a cooling fan driven by the hydraulic motor; (4) an electromagnetic selector valve for switching the rotating direction of the hydraulic motor between a forward direction and a reverse direction; (5) controlling means for controlling switching of the electromagnetic selector valve and controlling the hydraulic pump so as to minimize the discharge oil rate of the hydraulic pump during switching of the electromagnetic selector valve.
摘要翻译：提供了一种用于作业机械的冷却系统，其中通过在切换旋转方向时的廉价布置，可以在不失败的情况下防止施加在风扇驱动电路上的负载的增加和异常噪声的发生一个冷却风扇为此，冷却系统包括：（1）由发动机驱动的可变排量液压泵; （2）由液压泵供应的液压油操作的向前和反向旋转的液压马达; （3）由液压马达驱动的冷却风扇; （4）用于在正向和反向之间切换液压马达的旋转方向的电磁选择阀; （5）用于控制电磁切换阀的切换和控制液压泵的控制装置，以便在切换电磁选择阀期间使液压泵的排出油量最小化。

6. 发明授权

US07946404B2 Work vehicle controller 有权
标题翻译：工作车辆控制器
公开(公告)号：US07946404B2
公开(公告)日：2011-05-24
申请号：US12086706
申请日：2006-11-30
申请人： Tomohiro Nakagawa , Shigeru Yamamoto , Mitsuhiko Kamado
发明人： Tomohiro Nakagawa , Shigeru Yamamoto , Mitsuhiko Kamado
IPC分类号： B60W10/10 , B60W10/18 , B60W30/18
CPC分类号： B60W30/18036 , B60W10/02 , B60W10/184 , E02F9/2083 , F16D2500/3024 , F16D2500/3102 , F16D2500/3108 , F16D2500/31466 , F16D2500/50296 , F16H61/0246 , F16H2312/09 , Y10T74/19251
摘要： A device for a work vehicle eliminates uncomfortable operation feeling, improves the working efficiency, and reduces thermal load on a clutch and transmission shock. It is determined whether the current travel direction of the vehicle body is a forward travel direction F or a reverse travel direction R based clutch oil pressure of the forward clutch or reverse clutch. Braking force of a brake device is controlled such that the brake device is activated on the conditions that the travel direction position selected by the travel operation lever and the travel direction determined by a travel direction flag are opposite to each other, and the detected vehicle body speed is equal to or greater than a predetermined threshold value.
摘要翻译：用于工作车辆的装置消除了不舒服的操作感觉，提高了工作效率，并且减少了离合器的热负荷和传输冲击。确定车体的当前行驶方向是前进离合器还是倒档离合器的前进行驶方向F或倒档行驶方向R的离合器油压。控制制动装置的制动力，使得制动装置在由行驶操作杆选择的行驶方向位置和由行驶方向标志确定的行进方向彼此相反的条件下被启动，并且检测到的车体速度等于或大于预定阈值。

7. 发明申请

US20130081836A1 CONSTRUCTION MACHINE 有权
标题翻译：建筑机械
公开(公告)号：US20130081836A1
公开(公告)日：2013-04-04
申请号：US13249806
申请日：2011-09-30
申请人： Kazuhiko HAYASHI , Mitsuhiko Kamado , Tomohiro Nakagawa
发明人： Kazuhiko HAYASHI , Mitsuhiko Kamado , Tomohiro Nakagawa
IPC分类号： E02F3/85
CPC分类号： E02F3/847 , E02F9/264 , G01S19/49 , G01S19/53
摘要： A bulldozer of the present invention includes a GPS receiver which is fixed to a vehicle body of the bulldozer, and angle obtaining part which stores a conversion table in which a combination of an angling cylinder length and a tilt cylinder length are matched with a combination of a blade angling angle and a blade tilting angle.
摘要翻译：本发明的推土机包括：固定在推土机的车体上的GPS接收器;以及角度获取部，其存储将倾斜缸长度与倾斜缸长度的组合与叶片倾角和叶片倾斜角度。

8. 发明授权

US08463512B2 Construction machine 有权
标题翻译：施工机械
公开(公告)号：US08463512B2
公开(公告)日：2013-06-11
申请号：US13249806
申请日：2011-09-30
申请人： Kazuhiko Hayashi , Mitsuhiko Kamado , Tomohiro Nakagawa
发明人： Kazuhiko Hayashi , Mitsuhiko Kamado , Tomohiro Nakagawa
IPC分类号： E02F3/76 , G01S5/02 , G01C21/00
CPC分类号： E02F3/847 , E02F9/264 , G01S19/49 , G01S19/53
摘要： A bulldozer of the present invention includes a GPS receiver which is fixed to a vehicle body of the bulldozer, and angle obtaining part which stores a conversion table in which a combination of an angling cylinder length and a tilt cylinder length are matched with a combination of a blade angling angle and a blade tilting angle.
摘要翻译：本发明的推土机包括：固定在推土机的车体上的GPS接收器;以及角度获取部，其存储将倾斜缸长度与倾斜缸长度的组合与叶片倾角和叶片倾斜角度。

9. 发明授权

US08047121B2 Working machine, and quick load-dropping method 有权
标题翻译：工作机，快速卸载方式
公开(公告)号：US08047121B2
公开(公告)日：2011-11-01
申请号：US12279912
申请日：2007-04-04
申请人： Shigeru Yamamoto , Tomohiro Nakagawa , Satoru Shintani
发明人： Shigeru Yamamoto , Tomohiro Nakagawa , Satoru Shintani
IPC分类号： F15B13/042
CPC分类号： E02F9/2228 , E02F3/844 , E02F9/2203 , E02F9/2285 , E02F9/2292 , F15B2211/3127 , F15B2211/6346 , F15B2211/7053 , F15B2211/7107
摘要： A tank 16 and a main hydraulic pump 17 are connected to head side actuator chambers 13 and rod side actuator chambers 14 of hydraulic actuators 12 via conduits 21, 22. A direction control valve 18 and a quick drop valve 36 are connected to the conduits 21, 22. A hydraulic circuit is provided with an electromagnetic switch valve 42, which switches the quick drop valve 36 from a non-quick drop position 37 to a quick drop position 38. When switching the direction control valve 18 from a neutral position 23 to a lowering operation position 25, if the manipulation speed of a manipulation lever 33 exceeds a criteria speed, an excitation signal is output from a control device 32 to an electromagnetic switch valve 42 to quickly drop a blade 11, and the quick drop valve 36 is switched from the non-quick drop position 37 to the quick drop position 38.
摘要翻译：油箱16和主液压泵17通过管道21,22与液压致动器12的头侧致动器室13和杆侧致动器室14连接。方向控制阀18和快速下降阀36连接到管道21 液压回路设置有电磁切换阀42，其将快速下降阀36从非快速下降位置37切换到快速下降位置38.当将方向控制阀18从空档位置23切换到降低操作位置25，如果操纵杆33的操纵速度超过标准速度，则将激励信号从控制装置32输出到电磁开关阀42，以迅速地降低叶片11，并且快速下降阀36为从非快速下落位置37切换到快速下落位置38。

10. 发明申请

US20100256877A1 TRANSMISSION CONTROL DEVICE AND METHOD FOR WORKING VEHICLE 有权
标题翻译：变速箱控制装置和车辆工作方法
公开(公告)号：US20100256877A1
公开(公告)日：2010-10-07
申请号：US12675811
申请日：2008-10-07
申请人： Tomohiro Nakagawa , Shigeru Yamamoto , Kenjiro Shimada
发明人： Tomohiro Nakagawa , Shigeru Yamamoto , Kenjiro Shimada
IPC分类号： G06F19/00 , F16H61/14
CPC分类号： F16H61/143 , E02F9/2246 , E02F9/2253 , E02F9/2296 , F16H59/48 , F16H61/0437 , F16H2061/146 , Y10T74/19251 , Y10T477/638 , Y10T477/755
摘要： A transmission control device includes a load increase rate computation portion and a transmission control portion. The load increase rate computation portion is configured to compute an increase rate of a load acting on the work vehicle. The transmission control portion is configured to shift a high-speed gear down to a low-speed gear with producing a lock-up state in which a lock-up clutch is engaged when the load increase rate is less than a load increase rate threshold in shifting the high-speed gear down to the low-speed gear, and producing a torque converter state in which the lock-up clutch is disengaged when the load increase rate is equal to or greater than the load increase rate threshold in shifting the high-speed gear down to the low-speed gear.
摘要翻译：传输控制装置包括负载增加率计算部分和传输控制部分。负载增加率计算部被配置为计算作用在作业车辆上的负载的增加率。变速器控制部构成为，在负荷增加率小于负荷增加率阈值的情况下，在产生锁定状态的情况下，将高速齿轮向下移动到低速齿轮，在该状态下锁定离合器接合将高速齿轮降档到低速档，并产生一个变矩器状态，其中当负载增加率等于或大于负载增加率阈值时，锁止离合器分离，高速档下降到低速档。

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