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1. 发明授权

US08955472B2 Work vehicle and control method for work vehicle 有权
标题翻译：工作车辆和工作车辆的控制方法
公开(公告)号：US08955472B2
公开(公告)日：2015-02-17
申请号：US12595285
申请日：2008-05-19
申请人： Satoru Shintani , Shigeru Yamamoto , Kazuyuki Suzuki , Takeshi Takaura , Tomohiro Nakagawa
发明人： Satoru Shintani , Shigeru Yamamoto , Kazuyuki Suzuki , Takeshi Takaura , Tomohiro Nakagawa
IPC分类号： F01P7/02 , E02F9/20 , F01P7/08 , F02D29/04 , F01P7/04 , F02D29/02
CPC分类号： E02F9/2025 , F01P7/044 , F01P7/08 , F02D29/02 , F02D29/04
摘要： A work vehicle is provided with an engine, a traveling device driven by driving force from the engine to cause the work vehicle to travel, a first hydraulic pump driven by the driving force from the engine to discharge hydraulic oil, and a cooling device having a cooling fan driven by the hydraulic oil supplied by the first hydraulic pump to cool the engine, and a control unit. The control unit performs a normal cooling control in which an upper limit fan speed is determined based on an engine speed, and a cooling suppression control in which the upper limit fan speed determined based on the engine speed is suppressed to be less than the upper limit fan speed during the normal cooling control when a predetermined operation required to increase the engine speed is performed.
摘要翻译：工作车辆设置有发动机，由发动机的驱动力驱动以使作业车辆行驶的行驶装置，由来自发动机的驱动力驱动以排出液压油的第一液压泵，以及具有由第一液压泵供应的液压油驱动的冷却风扇以冷却发动机，以及控制单元。控制单元进行基于发动机转速确定上限风扇速度的正常冷却控制，将根据发动机转速确定的上限风扇速度抑制在小于上限的冷却抑制控制执行提高发动机转速所需的规定动作时的正常冷却控制时的风扇转速。

2. 发明授权

US06766231B2 Monitor system for work vehicle 有权
标题翻译：工作车辆监控系统
公开(公告)号：US06766231B2
公开(公告)日：2004-07-20
申请号：US10126669
申请日：2002-04-22
申请人： Tomohiro Nakagawa , Shigeru Yamamoto , Kazuyuki Suzuki
发明人： Tomohiro Nakagawa , Shigeru Yamamoto , Kazuyuki Suzuki
IPC分类号： G06F1130
CPC分类号： G07C5/085
摘要： An object is to readily execute various adjustment and setting operations according to the taste of the operator, while various easy adjustment and setting operations are possible at the service side without use of a special input device. A display panel section for displaying various pieces of information on a work vehicle has a message display section which is switchable among a normal mode for displaying the normal operating condition of the work vehicle; a user mode for displaying, by switching, a plurality of functions selectable by an operator who operates the work vehicle; and a service mode for displaying, by switching, a plurality of functions selectable by an adjuster who is in charge of adjustment operation for the work vehicle.
摘要翻译：目的是根据操作者的口味容易地执行各种调节和设置操作，而在服务侧可以进行各种容易的调整和设置操作，而不使用专门的输入设备。用于在工作车辆上显示各种信息的显示面板部分具有可在用于显示工作车辆的正常操作状态的正常模式之间切换的消息显示部分; 用户模式，用于通过切换由操作所述工作车辆的操作者选择的多个功能来显示; 以及服务模式，用于通过切换来显示由负责作业车辆的调整操作的调节器可选择的多个功能。

3. 发明授权

US06755487B2 Brake adjustment method and apparatus thereof 有权
标题翻译：制动调整方法及其装置
公开(公告)号：US06755487B2
公开(公告)日：2004-06-29
申请号：US10002184
申请日：2001-12-05
申请人： Kazuyuki Suzuki , Shigeru Yamamoto , Tomohiro Nakagawa
发明人： Kazuyuki Suzuki , Shigeru Yamamoto , Tomohiro Nakagawa
IPC分类号： B60T832
CPC分类号： E02F9/225 , B60K2350/406 , B60T13/22 , B62D11/08 , B62D11/183 , E02F9/26
摘要： A brake adjustment method and apparatus thereof are described which are capable of providing proper brake hydraulic pressure compensation without causing variations due to different adjusters and without lifting the vehicle. The apparatus comprises: (a) an adjustment mode setting device for setting an adjustment mode for adjusting brake hydraulic pressure to a proper value, while the vehicle is in its stopped state; (b) brake hydraulic pressure changing control for controlling the brake hydraulic pressure to gradually change when the adjustment mode has been set by the adjustment mode setting device; (c) vehicle travel start detector for detecting a start of traveling of the vehicle; (d) brake pressure command value detector for detecting a brake pressure command value at the start of traveling of the vehicle, if a start of vehicle traveling is detected by the vehicle travel start detector while the brake hydraulic pressure is gradually changed by the brake hydraulic pressure changing control; and (e) a brake hydraulic pressure correcting system for correcting the brake hydraulic pressure to a proper value, based on the brake pressure command value detected by the brake pressure command value detector.
摘要翻译：描述了一种制动调节方法及其装置，其能够提供适当的制动液压补偿，而不会由于不同的调节器而引起变化，并且不提升车辆。该装置包括：（a）调节模式设定装置，用于在车辆处于停止状态时，将调节制动液压的调节模式设定为适当的值; （b）当通过调节模式设定装置设定了调节模式时，用于控制制动液压的制动液压变更控制逐渐变化; （c）用于检测车辆行驶开始的车辆行驶起动检测器; （d）制动压力指令值检测器，用于在车辆行驶开始时检测制动压力指令值，如果在制动液压由制动液压逐渐变化时由车辆行驶起动检测器检测到车辆行驶开始变压控制; 以及（e）制动液压校正系统，用于基于由制动压力指令值检测器检测到的制动压力指令值，将制动液压校正到适当的值。

4. 发明授权

US06654676B2 Steering system for tracklaying vehicle 有权
公开(公告)号：US06654676B2
公开(公告)日：2003-11-25
申请号：US10103115
申请日：2002-03-22
申请人： Tomohiro Nakagawa , Shigeru Yamamoto , Kazuyuki Suzuki
发明人： Tomohiro Nakagawa , Shigeru Yamamoto , Kazuyuki Suzuki
IPC分类号： G06F1900
CPC分类号： B62D11/183 , Y10T477/10
摘要： An object is to provide a steering system for a tracklaying vehicle which is capable of preventing overrun of a motor during a pivot turn irrespective of the load of the road surface and does not cause a shortage of power during a turn. The steering system is comprised of a pair of brakes for right and left output shafts and designed to transmit the driving force of a hydraulic motor to the output shafts through a planetary gear mechanism. A transmission of a driving force from the hydraulic motor to the planetary gear mechanism is interrupted after concurrently carrying out actuation of a brake for either one of the right and left output shafts and a transmission of a driving force from the hydraulic motor to the planetary gear mechanism for a specified period of time, when the vehicle carries out a pivot turn. During a pivot turn of the vehicle, the engine is controlled such that a vehicle body speed obtained by a bevel shaft rotational speed detector becomes equal to a specified value.

5. 发明授权

US06637529B2 Steering control system for tracklaying vehicle 有权
公开(公告)号：US06637529B2
公开(公告)日：2003-10-28
申请号：US10023648
申请日：2001-12-21
申请人： Kazuyuki Suzuki , Shigeru Yamamoto , Tomohiro Nakagawa , Masahiro Ikeda
发明人： Kazuyuki Suzuki , Shigeru Yamamoto , Tomohiro Nakagawa , Masahiro Ikeda
IPC分类号： B62D1108
CPC分类号： B62D11/183
摘要： A steering control system for a tracklaying vehicle, which ensures smooth turning performance according to various modes such as ascent travel, descent travel, and travel in a low speed range and which provides improved controllability. According to various operation states such as an ascent travel state, descent travel state, high-load drive state, low engine rotational speed travel state, and high-speed travel state, the clutch/brake modulation characteristic (i.e., static or dynamic characteristic) is varied to select the optimum characteristic.

6. 发明申请

US20100107996A1 WORK VEHICLE AND CONTROL METHOD FOR WORK VEHICLE 有权
标题翻译：工作车辆的工作车辆和控制方法
公开(公告)号：US20100107996A1
公开(公告)日：2010-05-06
申请号：US12595285
申请日：2008-05-19
申请人： Satoru Shintani , Shigeru Yamamoto , Kazuyuki Suzuki , Takeshi Takaura , Tomohiro Nakagawa
发明人： Satoru Shintani , Shigeru Yamamoto , Kazuyuki Suzuki , Takeshi Takaura , Tomohiro Nakagawa
IPC分类号： F01P7/02 , F04B35/00
CPC分类号： E02F9/2025 , F01P7/044 , F01P7/08 , F02D29/02 , F02D29/04
摘要： A work vehicle is provided with an engine, a traveling device driven by driving force from the engine to cause the work vehicle to travel, a first hydraulic pump driven by the driving force from the engine to discharge hydraulic oil, and a cooling device having a cooling fan driven by the hydraulic oil supplied by the first hydraulic pump to cool the engine, and a control unit. The control unit performs a normal cooling control in which an upper limit fan speed is determined based on an engine speed, and a cooling suppression control in which the upper limit fan speed determined based on the engine speed is suppressed to be less than the upper limit fan speed during the normal cooling control when a predetermined operation required to increase the engine speed is performed.
摘要翻译：工作车辆设置有发动机，由发动机的驱动力驱动以使作业车辆行驶的行驶装置，由来自发动机的驱动力驱动以排出液压油的第一液压泵，以及具有由第一液压泵供应的液压油驱动的冷却风扇以冷却发动机，以及控制单元。控制单元进行基于发动机转速确定上限风扇速度的正常冷却控制，将根据发动机转速确定的上限风扇速度抑制在小于上限的冷却抑制控制执行提高发动机转速所需的规定动作时的正常冷却控制时的风扇转速。

7. 发明授权

US06712187B2 Clutch adjustment method and apparatus thereof 有权
标题翻译：离合器调整方法及其装置
公开(公告)号：US06712187B2
公开(公告)日：2004-03-30
申请号：US10011779
申请日：2001-12-11
申请人： Kazuyuki Suzuki , Shigeru Yamamoto , Tomohiro Nakagawa
发明人： Kazuyuki Suzuki , Shigeru Yamamoto , Tomohiro Nakagawa
IPC分类号： F16D1322
CPC分类号： F16D48/066 , F16D48/068 , F16D2500/1112 , F16D2500/3026 , F16D2500/30406 , F16D2500/3067 , F16D2500/30825 , F16D2500/3101 , F16D2500/50236 , F16D2500/50858 , F16D2500/70406
摘要： A clutch adjustment method and apparatus thereof are described which are capable of properly compensating for performance variations or performance deterioration due to variations or wear in various parts. The apparatus comprises: (a) adjustment mode setting means for setting an adjustment mode for adjusting clutch hydraulic pressure to a proper value, while brakes being in their actuated state; (b) clutch hydraulic pressure changing means for controlling the clutch hydraulic pressure to gradually change when the adjustment mode is set by the adjustment mode setting means; (c) clutch sliding start detecting means for detecting a start of sliding of a clutch; (d) clutch pressure command value detecting means for detecting a clutch pressure command value at the start of sliding of the clutch if sliding of the clutch is detected by the clutch sliding start detecting means while the clutch hydraulic pressure being gradually changed by the clutch hydraulic pressure changing means; and (e) clutch hydraulic pressure correcting means for correcting the clutch hydraulic pressure to a proper value, based on the clutch pressure command value detected by the clutch pressure command value detecting means.
摘要翻译：描述了一种离合器调节方法和装置，其能够适当地补偿由于各种部件中的变化或磨损引起的性能变化或性能劣化。该装置包括：（a）调节模式设定装置，用于在制动器处于其启动状态时将用于将离合器液压调节的调节模式设定为适当的值; （b）当通过调节模式设定装置设定调节模式时，用于控制离合器液压逐渐变化的离合器液压变化装置; （c）离合器滑动开始检测装置，用于检测离合器的滑动开始; （d）离合器压力指令值检测装置，用于当离合器液压由离合器液压逐渐变化时，通过离合器滑动启动检测装置检测到离合器的滑动，检测离合器滑动开始时的离合器压力指令值压力改变装置; 和（e）离合器液压校正装置，用于基于由离合器压力指令值检测装置检测到的离合器压力指令值，将离合器液压校正到适当的值。

8. 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。

9. 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。

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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