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1. 发明授权

US5558590A Geared steering device for crawler vehicle and control unit therefor 失效
标题翻译：用于履带车辆的减速转向装置及其控制单元
公开(公告)号：US5558590A
公开(公告)日：1996-09-24
申请号：US188440
申请日：1994-01-28
申请人： Toshikazu Okada , Hiroshi Itogawa , Hidekazu Nagase
发明人： Toshikazu Okada , Hiroshi Itogawa , Hidekazu Nagase
IPC分类号： B62D11/08 , B62D11/18
CPC分类号： B62D11/08 , B62D11/183 , Y10T477/10 , Y10T477/606
摘要： A geared steering device (30) selectively operates rightside and leftside driving mechanisms (2,3) of a crawler vehicle (1) for more efficient operation of the crawler vehicle. The geared steering device (30) comprises a power input drive element (33) for inputting a driving power from a prime mover (7), rightside and leftside steering brakes (38R, 38L), rightside and leftside direct-coupled clutches (36, 44), a turn clutch (46), three arrays of planet gear trains (40, 43 and 48), and power output shafts (32R, 32L) coupled to right and leftside steering brake hubs (34R, 34L). A control unit compares an actual steering ratio of a geared steering device (30) with a designated steering ratio, outputs control signals to respective solenoid valves for controlling the direct-coupled clutches, the turn clutch or a steering brake so as to cause the actual steering ratio to approximate the designated steering ratio. The control unit outputs an engagement signal to the one of the direct-coupled clutches (36 and 44) on the side opposite to a steering direction entered by the steering lever (57).
摘要翻译：齿轮转向装置（30）选择性地操作履带车辆（1）的右侧和左侧驱动机构（2,3），以更有效地操作履带车辆。齿轮转向装置（30）包括用于从原动机（7），右侧和左侧转向制动器（38R，38L）输入驱动力的动力输入驱动元件（33），右侧和左侧直接离合器（36， 44），转动离合器（46），行星齿轮系（40,43和48）的三个阵列以及联接到右侧和右侧转向制动轮毂（34R，34L）的动力输出轴（32R，32L）。控制单元将齿轮转向装置（30）的实际转向比与指定的转向比进行比较，将控制信号输出到用于控制直接离合器，转向离合器或转向制动器的各个电磁阀，以使实际转向比接近指定转向比。所述控制单元在与所述转向杆（57）输入的转向方向相反的一侧向所述直接离合器（36和44）中的一个输出接合信号。

2. 发明授权

US5620053A Blade apparatus and its control method in bulldozer 失效
标题翻译：铲土机及其在推土机中的控制方法
公开(公告)号：US5620053A
公开(公告)日：1997-04-15
申请号：US378839
申请日：1995-01-26
申请人： Nobuhisa Kamikawa , Toshikazu Okada , Hidekazu Nagase , Naomi Kobayashi , Hiroshi Itogawa , Noriaki Namiki , Norihisa Matsumoto , Shigeru Yamamoto
发明人： Nobuhisa Kamikawa , Toshikazu Okada , Hidekazu Nagase , Naomi Kobayashi , Hiroshi Itogawa , Noriaki Namiki , Norihisa Matsumoto , Shigeru Yamamoto
IPC分类号： E02F3/84 , E02F3/85 , E02F9/20 , E02F9/22 , E02F3/76
CPC分类号： E02F9/2292 , E02F3/7618 , E02F3/844 , E02F9/2004 , E02F9/2296
摘要： A hydraulic drive system for the pitch cylinders (4A, 4B) of a bulldozer blade apparatus can include (a) main hydraulic pumps (30A, 30B) and an assistant hydraulic pump (31) to make up the assistant hydraulic circuit, (b) variable displacement hydraulic pumps (21A, 21B), or (c) fixed displacement hydraulic pumps (30A, 30B) and a plurality of solenoid selector valves such that the pitch cylinders can be connected in series. The assistant hydraulic pump (31) is connectable to delivery lines of the main hydraulic pumps through an assistant solenoid selector valve (32) which is controlled by an external signal. The blade (10) can be formed so that a line (14) tangential to the lower edge of the curved panel of the blade is inclined rearwardly with respect to the front face (13) of the blade edge member (12). Earth-moving work can be performed by inclining the blade (10) rearwardly by an angle (.theta..sub.1) with respect to its posture in digging work, and earth-dumping work can be performed by inclining the blade (10) forwardly by an angle (.theta..sub.2) with respect to its posture in digging work. The coupling positions of the two pitch cylinders (4A, 4B) can be in asymmetrical relation to each other. Control signals can be provided by a blade lever (23), tilt/pitch changeover switch (24), and pitch speed changeover switch (25). The tilt/pitch changeover switch (24) and pitch speed changeover switch (25) can be replaced by pitch-dump selector switch (25A) and pitch-back selector switch (24A).
摘要翻译：用于推土机叶片装置的变桨缸（4A，4B）的液压驱动系统可以包括：（a）主液压泵（30A，30B）和辅助液压泵（31），以组成辅助液压回路;（b）可变排量液压泵（21A，21B）或（c）固定排量液压泵（30A，30B）和多个电磁选择阀，使得变桨缸可以串联连接。辅助液压泵（31）可通过由外部信号控制的辅助电磁换向阀（32）连接到主液压泵的输送管线。叶片（10）可以形成为使得与叶片的弯曲面板的下边缘相切的线（14）相对于叶片边缘构件（12）的前表面（13）向后倾斜。地面移动作业可以通过在挖掘作业中将叶片（10）相对于其姿势向后倾斜角度（θ1）来执行，并且可以通过将叶片（10）向前倾斜角度（θ2）相对于其在挖掘工作中的姿势。两个变桨缸（4A，4B）的联接位置可以彼此不对称。控制信号可由叶片杆（23），倾斜/俯仰切换开关（24）和俯仰速度转换开关（25）提供。俯仰/俯仰切换开关（24）和俯仰速度切换开关（25）可以由倾倒切换选择开关（25A）和俯仰式选择开关（24A）代替。

3. 发明授权

US5983151A Tractive force control apparatus and method for construction equipment 失效
标题翻译：牵引力控制装置及施工设备方法
公开(公告)号：US5983151A
公开(公告)日：1999-11-09
申请号：US849182
申请日：1997-05-28
申请人： Toshikazu Okada , Hidekazu Nagase , Shigeru Yamamoto , Noriaki Namiki , Nobuhisa Kamikawa
发明人： Toshikazu Okada , Hidekazu Nagase , Shigeru Yamamoto , Noriaki Namiki , Nobuhisa Kamikawa
IPC分类号： E02F3/84 , E02F3/85 , E02F9/22 , F02D29/04 , F04B49/00 , F15B11/08 , F15B11/00
CPC分类号： F02D29/04
摘要： A tractive force control apparatus and method for preventing a torque converter from being stalled while a working machine is operated during excavation and earth carrying work using a construction machine. In this apparatus, an engine rotational speed sensor (2), a torque converter output shaft rotational speed sensor (4) and a lift combination solenoid valve (12) are connected to a control apparatus. A pilot pressure control valve (11) for a blade lift is connected to a first lift operating valve (13), and also to a second lift operating valve (14) via the lift combination solenoid valve (12). First and second hydraulic pumps (20, 21) and lift cylinders (15, 15) are connected respectively via the first and second lift operating valves (13, 14). A traction output is computed in the control apparatus (16), and, when the traction output is lower than a target level, the lift combination solenoid valve (12) is turned off to reduce a flow rate of oil to the lift cylinders (15, 15). The traction force is thus increased correspondingly to prevent a torque converter (3) from being stalled.
摘要翻译： PCT No.PCT / JP95 / 02374 371日期1997年5月28日 102（e）日期1997年5月28日PCT提交1995年11月21日PCT公布。公开号WO96 / 17136 日期1996年6月6日一种牵引力控制装置和方法，用于在使用建筑机械的挖掘和承载作业期间在工作机械运行时防止变矩器停转。在该装置中，发动机转速传感器（2），变矩器输出轴转速传感器（4）和升降组合电磁阀（12）连接到控制装置。用于叶片提升的先导压力控制阀（11）连接到第一提升操作阀（13），并且还经由提升组合电磁阀（12）连接到第二提升操作阀（14）。第一和第二液压泵（20,21）和提升缸（15,15）分别经由第一和第二提升操作阀（13,14）连接。在控制装置（16）中计算牵引输出，并且当牵引输出低于目标水平时，提升组合电磁阀（12）被关闭以降低到提升缸（15）的油流量，15）。因此，相应地增加牵引力以防止变矩器（3）停转。

4. 发明授权

US07448976B2 Speed-changing device 有权
标题翻译：变速装置
公开(公告)号：US07448976B2
公开(公告)日：2008-11-11
申请号：US11961918
申请日：2007-12-20
申请人： Hikosaburo Hiraki , Takashi Kuse , Toshikazu Okada , Shigeru Yamamoto , Naoki Ishizaki
发明人： Hikosaburo Hiraki , Takashi Kuse , Toshikazu Okada , Shigeru Yamamoto , Naoki Ishizaki
IPC分类号： F16H3/72 , F16H48/30
CPC分类号： F16H47/04 , F16H2037/0866 , F16H2037/088
摘要： A transmission is provided which has a very compact system configuration and is capable of exerting high energy efficiency over all speed regions from a low speed region to a high speed region, while providing improved operability free from a torque shortage. To this end, the transmission has an input shaft, an intermediate output shaft, a planetary gear mechanism, a first pump-motor, and a second pump-motor connected to the first pump-motor, the input shaft being coupled to a first element of the planetary gear mechanism, the second pump-motor being coupled to a second element of the planetary gear mechanism, the intermediate output shaft being coupled to a third element of the planetary gear mechanism, and the transmission further comprising a switching mechanism for selectively coupling the first pump-motor to either the input shaft or the intermediate output shaft.
摘要翻译：提供了一种具有非常紧凑的系统配置并且能够在从低速区域到高速区域的所有速度区域施加高能量效率的传输，同时提供了没有扭矩不足的改进的可操作性。为此，变速器具有输入轴，中间输出轴，行星齿轮机构，第一泵电动机和连接到第一泵电动机的第二泵电动机，输入轴与第一元件所述第二泵电动机联接到所述行星齿轮机构的第二元件，所述中间输出轴联接到所述行星齿轮机构的第三元件，所述变速器还包括用于选择性地联接的切换机构第一个泵马达到输入轴或中间输出轴。

5. 发明申请

US20050071068A1 Vehicle control system 失效
标题翻译：车辆控制系统
公开(公告)号：US20050071068A1
公开(公告)日：2005-03-31
申请号：US10946516
申请日：2004-09-21
申请人： Masahiro Funato , Toshikazu Okada , Shigeru Yamamoto , Tomohiro Nakagawa
发明人： Masahiro Funato , Toshikazu Okada , Shigeru Yamamoto , Tomohiro Nakagawa
IPC分类号： B60W10/04 , B60W10/06 , B60W10/10 , B60W10/101 , F02D29/00 , F16H47/04 , G06F17/00
CPC分类号： B60W10/103 , B60W10/06 , B60W30/1882 , B60Y2200/14 , F16H47/04 , F16H61/46 , F16H61/462 , F16H2037/0866 , F16H2037/088
摘要： A vehicle control system having an engine and a hydro-mechanical transmission, which further comprises a decelerator for changing target engine speed according to the operating amount of a decelerator pedal; a hydrostatic transmission unit controlling means for controlling a hydrostatic transmission unit so as to make the actual speed of the engine coincident with the target engine speed; and engine controlling means for controlling the engine such that if the target engine speed is changed from a first target value to a second target value lower than the first target value by the decelerator, the output torque of the engine is reduced, while keeping the ratio of the amount of change in the output torque of the engine to the amount of change in the target engine speed constant or substantially constant.
摘要翻译：一种具有发动机和液力 - 机械变速器的车辆控制系统，还包括用于根据减速器踏板的操作量改变目标发动机转速的减速器; 液压传动单元控制装置，用于控制液压传动单元，以使发动机的实际速度与目标发动机转速一致; 以及用于控制发动机的发动机控制装置，使得如果目标发动机速度由减速器从第一目标值改变为低于第一目标值的第二目标值，则发动机的输出转矩减小，同时保持比率发动机的输出转矩的变化量与目标发动机转速的变化量恒定或基本恒定。

6. 发明授权

US5569109A Geared steering device for crawler vehicle and control system therefor 失效
标题翻译：用于履带式车辆的变速箱转向装置及其控制系统
公开(公告)号：US5569109A
公开(公告)日：1996-10-29
申请号：US266019
申请日：1994-06-27
申请人： Toshikazu Okada
发明人： Toshikazu Okada
IPC分类号： B62D11/08 , B62D11/18 , B62D11/06 , B62D6/00 , B62D11/02
CPC分类号： B62D11/08 , B62D11/183 , Y10T477/10
摘要： A geared steering system, which is capable of actuating rightside and leftside driving mechanisms to ensure efficient operation of a crawler vehicle, has a geared steering device (30) and a control system. The geared steering device (30) has one power input shaft (31), leftside and rightside steering brakes (38L, 38R) and leftside and rightside direct-coupled clutches (36, 44), one turn clutch (46), three planet gear trains (40, 43, 48), leftside and rightside power output shafts (32L, 32R) coupled to leftside and rightside steering brake hubs (34L, 34R), and a hydraulic turning motor (83) coupled to the turn clutch (46) with gears. The control system has a controller (56) which compares an actual steering ratio of the geared steering device (30) and a designated steering ratio, and outputs a correction signal for approximating the actual steering ratio to the designated steering ratio to solenoid valves (60-64) for controlling the leftside and rightside direct-coupled clutches (36, 44), the turn clutch (46) or the leftside and rightside steering brakes (38L, 38R), an engaging signal to a direct-coupled clutch for an opposite direction to the steering direction to be entered by an operation lever (57), and, in a low speed large radius turn, a signal for controlling an amount of discharge of a variable capacity hydraulic pump (87).
摘要翻译：能够驱动右侧和左侧驱动机构以确保履带车辆的有效操作的齿轮转向系统具有齿轮转向装置（30）和控制系统。齿轮转向装置（30）具有一个动力输入轴（31），左侧和右侧转向制动器（38L，38R）和左侧和右侧直接离合器（36,44），一转离合器（46），三个行星齿轮联接到左侧和右侧转向制动轮毂（34L，34R）的列车（40,43,48），左侧和右侧动力输出轴（32L，32R）和联接到转动离合器（46）的液压回转马达（83）与齿轮。控制系统具有控制器（56），其将齿轮传动装置（30）的实际转向比与指定的转向比进行比较，并将用于将实际转向比近似的修正信号输出到电磁阀（60 -64），用于控制左侧和右侧直接离合器（36,44），转动离合器（46）或左侧和右侧转向制动器（38L，38R），与直接耦合离合器的接合信号相对通过操作杆（57）进入到转向方向的方向，并且在低速大半径转弯时，控制可变容量液压泵（87）的排出量的信号。

7. 发明授权

US07556586B2 Shift control device and shift control method for vehicle 有权
标题翻译：变速控制装置和变速控制方法
公开(公告)号：US07556586B2
公开(公告)日：2009-07-07
申请号：US11658297
申请日：2005-07-28
申请人： Tomohiro Nakagawa , Shigeru Yamamoto , Shunji Oka , Toshikazu Okada
发明人： Tomohiro Nakagawa , Shigeru Yamamoto , Shunji Oka , Toshikazu Okada
IPC分类号： B60W10/04 , F16H31/00
CPC分类号： F16H61/061 , B60W30/20 , B60W2710/027 , B60W2720/10 , F16D48/02 , F16D48/062 , F16D48/066 , F16D2500/1026 , F16D2500/10412 , F16D2500/1045 , F16D2500/1112 , F16D2500/30406 , F16D2500/3067 , F16D2500/30825 , F16D2500/3102 , F16D2500/3108 , F16D2500/3127 , F16D2500/3144 , F16D2500/3146 , F16D2500/50239 , F16D2500/50684 , F16D2500/70406 , F16D2500/7041 , F16D2500/70418 , F16D2500/70462 , F16H59/40 , F16H61/143 , F16H2059/405 , F16H2061/145 , F16H2306/54 , Y10T477/676 , Y10T477/753
摘要： A shift control device and a shift control method for a vehicle for reducing shift shock by taking into account the difference in vehicle speeds before and after shifting. In one of the main inventions, the clutch pressure of another clutch (forward clutch) is controlled to match a target vehicle speed to a calculated actual vehicle speed by the time of start of the connecting operation of a selected speed stage clutch. Since such control is performed so that the vehicle speed is caused to match the target vehicle speed, an actual vehicle speed change rate is held within a predetermined range in at least the instant that the connecting operation of the selected speed stage clutch is started. Also, in another one of the main inventions, as shown in FIG. 7, control is performed to adjust the clutch pressure of the other clutch (forward clutch) so that the vehicle speed change rate reaches a predetermined value in the period from when the connecting operation of the selected speed stage clutch is started until when the connecting operation is completed.
摘要翻译：变速控制装置和变速控制方法，用于通过考虑变速前后车速的差异来减少变速冲击的车辆。在主要发明之一中，通过所选择的速度档离合器的连接操作开始时，控制另一个离合器（前进离合器）的离合器压力，以将目标车速与计算出的实际车速相匹配。由于进行这样的控制使得车速与目标车速一致，所以至少在所选择的速度档离合器的连接动作开始的时刻，将实际的车速变化率保持在规定范围内。此外，在另一个主要发明中，如图1所示。如图7所示，在从所选择的速档级离合器的连接动作开始到连接动作之间的期间，进行控制以调整其他离合器（前进离合器）的离合器压力，使得车速变化率达到规定值完成了。

8. 发明授权

US07267634B2 Drive device for working vehicle and method of controlling the drive of working vehicle 有权
标题翻译：工作车辆用驱动装置及工作车辆驱动控制方法
公开(公告)号：US07267634B2
公开(公告)日：2007-09-11
申请号：US11100402
申请日：2005-04-07
申请人： Tomohiro Nakagawa , Shigeru Yamamoto , Shunji Oka , Toshikazu Okada
发明人： Tomohiro Nakagawa , Shigeru Yamamoto , Shunji Oka , Toshikazu Okada
IPC分类号： B60W10/02 , B60W10/04
CPC分类号： F16H61/0246 , B60W10/02 , B60W10/06 , B60W10/184 , B60W30/18045 , B60W2710/0644 , Y10T477/6392 , Y10T477/6403 , Y10T477/644 , Y10T477/745 , Y10T477/75 , Y10T477/753
摘要： The present invention provides a drive device for a working vehicle whereby gear change shock during the forward/reverse running changeover action can be reduced while achieving shortening of cycle time and protecting various clutch mechanisms in the transmission. If a reverse running command is output from a running control device while the vehicle is running forward, an ECMV controls a braking force of a brake device so as to reduce a vehicle speed through a first prescribed speed to a second prescribed speed, and disengages the forward clutch. When the vehicle speed reaches the first prescribed speed, the ECMV puts the reverse clutch in a slipping action condition and, after the vehicle speed reaches the second prescribed speed, gradually engages the reverse clutch.
摘要翻译：本发明提供了一种用于工作车辆的驱动装置，其中可以减少前进/后退行驶转换动作期间的变速冲击，同时实现循环时间的缩短并保护变速器中的各种离合器机构。如果在车辆向前行进时从行驶控制装置输出反转运行命令，则ECMV控制制动装置的制动力，以将车速通过第一规定速度降低到第二规定速度，前进离合器当车速达到第一规定速度时，ECMV使倒档离合器处于滑动动作状态，并且在车速达到第二规定速度后，逐渐接合倒档离合器。

9. 发明申请

US20060217225A1 Speed-changing device 有权
标题翻译：变速装置
公开(公告)号：US20060217225A1
公开(公告)日：2006-09-28
申请号：US10556843
申请日：2004-04-30
申请人： Hikosaburo Hiraki , Takashi Kuse , Toshikazu Okada
发明人： Hikosaburo Hiraki , Takashi Kuse , Toshikazu Okada
IPC分类号： F16H47/04
CPC分类号： F16H47/04 , F16H2037/0866 , F16H2037/088
摘要： A transmission is provided which has a very compact system configuration and is capable of exerting high energy efficiency over all speed regions from a low speed region to a high speed region, while providing improved operability free from a torque shortage. To this end, the transmission has an input shaft 3, an intermediate output shaft 8, a planetary gear mechanism 9, a first pump-motor 7, and a second pump-motor 15 connected to the first pump-motor 7, the input shaft 3 being coupled to a first element (planetary carrier 12) of the planetary gear mechanism 9, the second pump-motor 15 being coupled to a second element (sun gear 19) of the planetary gear mechanism 9, the intermediate output shaft 8 being coupled to a third element (ring gear 16) of the planetary gear mechanism 9, and the transmission further comprising a switching mechanism (synchromesh mechanism 6) for selectively coupling the first pump-motor 7 to either the input shaft 3 or the intermediate output shaft 8.
摘要翻译：提供了一种具有非常紧凑的系统配置并且能够在从低速区域到高速区域的所有速度区域施加高能量效率的传输，同时提供了没有扭矩不足的改进的可操作性。为此，变速器具有连接到第一泵电动机7的输入轴3，中间输出轴8，行星齿轮机构9，第一泵电动机7和第二泵电动机15，输入轴 3联接到行星齿轮机构9的第一元件（行星架12），第二泵电动机15联接到行星齿轮机构9的第二元件（太阳齿轮19），中间输出轴8被联接到行星齿轮机构9的第三元件（环形齿轮16），并且变速器还包括用于选择性地将第一泵电动机7联接到输入轴3或中间输出轴8的切换机构（同步啮合机构6）。

10. 发明授权

US06349882B1 Controlling device for hydraulically operated cooling fan 有权
标题翻译：液压冷却风扇控制装置
公开(公告)号：US06349882B1
公开(公告)日：2002-02-26
申请号：US09553156
申请日：2000-04-20
申请人： Ikuo Kita , Toshikazu Okada , Atsushi Uemura , Shigeru Yamamoto , Tomohiro Nakagawa
发明人： Ikuo Kita , Toshikazu Okada , Atsushi Uemura , Shigeru Yamamoto , Tomohiro Nakagawa
IPC分类号： F01P702
CPC分类号： F01P7/044 , F01P5/043
摘要： A controlling device for a hydraulically operated cooling fan capable of obtaining optimum cooling efficiency by continuously controlling a rotational frequency of the cooling fan according to a cooling water temperature, a hydraulic oil temperature, and an engine speed is provided. To this end, the controlling device includes a hydraulic motor (16) for driving a cooling fan (13), a variable displacement hydraulic pump (14) capable of controlling the rotational frequency of the hydraulic motor (16), a cooling water temperature sensor (21) for detecting a cooling water temperature (TW), a hydraulic oil temperature sensor (22) for detecting a hydraulic oil temperature (To), an engine speed sensor (23) for detecting an engine speed (E), and a controller (20) which inputs detected signals from these sensors (21, 22, 23), computes and outputs a discharge capacity command value of the variable displacement hydraulic pump (14) according to the inputted cooling water temperature (Tw), hydraulic oil temperature (To), and engine speed (E), and continuously controls a rotational frequency (N) of the cooling fan (13) by means of the variable displacement hydraulic pump (14).
摘要翻译：提供一种用于通过根据冷却水温度，液压油温度和发动机转速连续控制冷却风扇的转速来获得最佳冷却效率的液压冷却风扇的控制装置。为此，控制装置包括用于驱动冷却风扇（13）的液压马达（16），能够控制液压马达（16）的转速的可变排量液压泵（14），冷却水温度传感器用于检测冷却水温度（TW）的控制器（21），用于检测液压油温度（To）的液压油温度传感器（22），用于检测发动机转速（E）的发动机转速传感器（23）输入来自这些传感器（21,22,23）的检测信号的输入端（20）根据输入的冷却水温度（Tw），液压油温度（Tw）计算并输出可变排量液压泵（14）的排出容量指令值 To）和发动机转速（E），并通过可变排量液压泵（14）连续地控制冷却风扇（13）的转速（N）。

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