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11. 发明授权

US09002590B2 Engine control device and engine control method 有权
标题翻译：发动机控制装置和发动机控制方式
公开(公告)号：US09002590B2
公开(公告)日：2015-04-07
申请号：US12867577
申请日：2009-02-18
申请人： Teruo Akiyama , Hisashi Asada , Takeshi Ooi
发明人： Teruo Akiyama , Hisashi Asada , Takeshi Ooi
IPC分类号： G06F7/70 , G06F19/00 , G06G7/00 , G06G7/76 , E02F9/22 , F02D29/04
CPC分类号： E02F9/2246 , E02F9/2232 , E02F9/2285 , F02D29/04 , Y10T477/675
摘要： A first target engine speed N1 and a high-speed control area F1 are set according to a command value commanded by a command unit. A second target engine speed N2 and a high-speed control area F2 defined on a low-speed side are set according to the first target engine speed N1. A pump displacement D and an engine torque T of a variable displacement hydraulic pump are detected so that a target engine speed N corresponding to each of the detected pump displacement and engine torque is detected according to a preset relationship between a the pump displacement D and the target engine speed N and a preset relationship between the engine torque T and the target engine speed N during an engine control at the high-speed control area F2. The drive of the engine is controlled so that the engine is driven at the target engine speed N.
摘要翻译：根据由命令单元指令的命令值来设定第一目标发动机转速N1和高速控制区域F1。根据第一目标发动机转速N1设定第二目标发动机转速N2和限定在低速侧的高速控制区域F2。检测可变排量液压泵的泵排量D和发动机扭矩T，使得根据泵排量D和泵排量D的预设关系来检测与检测到的泵排量和发动机扭矩中的每一个对应的目标发动机转速N 目标发动机转速N和在高速控制区域F2的发动机控制期间的发动机转矩T与目标发动机转速N之间的预设关系。控制发动机的驱动，使得发动机以目标发动机转速N驱动。

12. 发明申请

US20140283510A1 HYDRAULIC DRIVE SYSTEM 有权
标题翻译：液压驱动系统
公开(公告)号：US20140283510A1
公开(公告)日：2014-09-25
申请号：US14354735
申请日：2012-09-11
申请人： Teruo Akiyama , Noboru Iida , Koji Saito , Koji Yamashita
发明人： Teruo Akiyama , Noboru Iida , Koji Saito , Koji Yamashita
IPC分类号： F15B15/02
CPC分类号： F15B15/02 , E02F9/2217 , E02F9/2242 , E02F9/226 , E02F9/2282 , E02F9/2289 , E02F9/2292 , E02F9/2296 , F15B11/17 , F15B2211/20546 , F15B2211/20561 , F15B2211/20576 , F15B2211/30525 , F15B2211/327 , F15B2211/613 , F15B2211/633 , F15B2211/6346 , F15B2211/7053 , F15B2211/785
摘要： A shuttle valve connects a second flowpath and a drain flowpath when the hydraulic pressure in a first flowpath is greater than the hydraulic pressure in the second flowpath. The shuttle valve connects the first flowpath and the drain flowpath when the hydraulic pressure in a second flowpath is greater than the hydraulic pressure in the first flowpath. The ratio between the pressure receiving area of a first pressure section and the pressure receiving area of a second pressure section is the same as the ratio between the pressure receiving area of a first chamber side and the pressure receiving area of a second chamber side of a cylinder rod.
摘要翻译：当第一流路中的液压大于第二流路中的液压时，梭阀连接第二流路和排水流路。当第二流路中的液压大于第一流路中的液压时，梭阀连接第一流路和排水流路。第一压力部的受压面积与第二压力部的受压面积之比与第一室侧的受压面积和第二室侧的受压面积之比气缸杆。

13. 发明授权

US08701401B2 Engine control device 有权
标题翻译：发动机控制装置
公开(公告)号：US08701401B2
公开(公告)日：2014-04-22
申请号：US13577205
申请日：2011-02-01
申请人： Takeshi Ooi , Masashi Ichihara , Teruo Akiyama
发明人： Takeshi Ooi , Masashi Ichihara , Teruo Akiyama
IPC分类号： F02D29/04
CPC分类号： E02F9/2246 , E02F9/2296 , F02D29/04 , F02D31/001 , F02D41/0205
摘要： A first target engine speed is set in response to a command value commanded by a command unit and a second target engine speed lower than the first target engine speed is set based on the first target engine speed. A reduction range from the first target engine speed to the second target engine speed is set according to a type of a hydraulic actuator operated by an operation lever or a combination of plural hydraulic actuators operated by an operation lever.
摘要翻译：响应于由命令单元指令的命令值设定第一目标发动机转速，并且基于第一目标发动机转速设定低于第一目标发动机转速的第二目标发动机转速。根据由操作杆操作的液压致动器的类型或由操作杆操作的多个液压致动器的组合，来设定从第一目标发动机转速到第二目标发动机转速的减速范围。

14. 发明申请

US20100167873A1 Engine Control Device, And Its Control Method 有权
标题翻译：发动机控制装置及其控制方法
公开(公告)号：US20100167873A1
公开(公告)日：2010-07-01
申请号：US12522683
申请日：2007-12-27
申请人： Teruo Akiyama , Hisashi Asada
发明人： Teruo Akiyama , Hisashi Asada
IPC分类号： F16H61/462
CPC分类号： F02D41/021 , E02F9/20 , E02F9/2246 , E02F9/2296 , F02D29/04 , F02D41/0205 , F02D41/083 , F02D41/2422 , F15B2211/20553 , F15B2211/253 , F15B2211/50536
摘要： A first target engine speed Nh and a high-speed control field F1 are set in accordance with a command value by command means. A second target engine speed N2 on the low rotation side and a high-speed control field F2 are set based on the first target engine speed Nh. When a matching point between an engine load and an engine output torque exceeds a first set position A which is a first predetermined pump displacement during control of an engine in the high-speed control field F2, the high-speed control field F2 is shifted toward the high-speed control field F1. Using, as a new high-speed control field, a high-speed control field 3 in which a differential pressure between a pump discharge pressure and a load pressure of an actuator satisfies a load sensing differential pressure in a pump control device 8, the engine is controlled in the high-speed control field 3, and when the differential pressure does not satisfies the load sensing differential pressure, the speed control field is shifted to the high-speed control field F1. With this, it is possible to provide an engine control device and a control method thereof in which the fuel economy of the engine is enhanced, and when the maximum speed of an operating machine is required, the required maximum speed of the operating machine is not lowered.
摘要翻译：根据命令装置的命令值来设定第一目标发动机转速Nh和高速控制场F1。基于第一目标发动机转速Nh设定低转速侧的第二目标发动机转速N2和高速控制场F2。当发动机负荷和发动机输出扭矩之间的匹配点超过在高速控制区域F2中的发动机的控制期间的第一预定泵排量的第一设定位置A时，高速控制区F2向高速控制场F1。使用作为新的高速控制领域的高速控制场3，其中泵排出压力和致动器的负载压力之间的压差满足泵控制装置8中的负载感测差压，发动机在高速控制场3中被控制，并且当差压不满足负载感测差压时，速度控制场转移到高速控制场F1。由此，能够提供发动机的燃油经济性提高的发动机控制装置及其控制方法，并且当需要操作机的最大转速时，操作机的所需最高速度不是降低

15. 发明授权

US5481872A Hydraulic circuit for operating plural actuators and its pressure compensating valve and maximum load pressure detector 失效
标题翻译：用于操作多个执行器的液压回路及其压力补偿阀和最大负载压力检测器
公开(公告)号：US5481872A
公开(公告)日：1996-01-09
申请号：US244439
申请日：1994-09-23
申请人： Tadao Karakama , Teruo Akiyama , Kouji Yamashita , Naoki Ishizaki
发明人： Tadao Karakama , Teruo Akiyama , Kouji Yamashita , Naoki Ishizaki
IPC分类号： E02F9/22 , F15B11/17 , F15B13/04 , F16D31/02 , F15B11/08
CPC分类号： F15B13/0417 , E02F9/2225 , F15B11/17 , F15B2211/20553 , F15B2211/20576 , F15B2211/27 , F15B2211/3054 , F15B2211/3111 , F15B2211/40515 , F15B2211/40569 , F15B2211/41518 , F15B2211/428 , F15B2211/455 , F15B2211/50536 , F15B2211/5157 , F15B2211/6303 , F15B2211/6313 , F15B2211/6316 , F15B2211/6355 , F15B2211/65 , F15B2211/654 , F15B2211/6654 , F15B2211/7142 , F15B2211/78
摘要： Simultaneous operation efficiency in a case where a plurality of actuators are operated by one or a plurality of hydraulic pumps is improved. A delivery pressure passage (1a) of one hydraulic pump (1) and that (1a) of the other hydraulic pump (1) communicate with each other through a first short-circuit passage (39) via a pair of check valves (38, 38), and an unload valve (40) is provided in this first short-circuit passage (39). The load pressure introduction passages (6, 6) on the left and right hydraulic pumps (1, 1) communicate with each other through a second short-circuit passage (36) via a pair of check valves (35, 35), and a relief valve (37) is provided in this short-circuit passage (36). The unload valve (40) is unloaded by the differential pressure between the pump delivery pressure in the first short-circuit passage (39) and the load pressure in the second short-circuit passage (36), whereby a single relief valve (37) carries out a relieving operation both at the time of flow merging and at the time of flow branching to equalize the maximum pump delivery pressures. The set pressure of the relief valve (37) can be a high level so as to relieve the valve (37) under a predetermined high load pressure, whereby the relieving operation can be arbitrarily controlled.
摘要翻译： PCT No.PCT / JP92 / 01540 Sec。 371日期1994年9月23日 102（e）1994年9月23日PCT PCT日期：1992年11月25日PCT公布。公开号WO93 / 11364 日期：1993年6月10日。在多个致动器由一个或多个液压泵操作的情况下的同时操作效率提高。一个液压泵（1）的输送压力通道（1a）和另一个液压泵（1）的（1a）通过第一短路通道（39）经由一对止回阀（38， 38），在该第一短路通路（39）上设置有卸载阀（40）。通过一对止回阀（35,35），通过第二短路通路（36）将左右液压泵（1,1）的负荷压力引入通路（6,6）相互连通，在该短路通路（36）上设有安全阀（37）。卸载阀（40）通过第一短路通道（39）中的泵输送压力和第二短路通道（36）中的负载压力之间的压差来卸载，由此单个安全阀（37）在流动合并时和流动分支时均执行减压操作以均衡最大泵输送压力。安全阀（37）的设定压力可以是高水平，以便在预定的高负载压力下释放阀（37），从而可以任意地控制卸载操作。

16. 发明授权

US4495767A Anticavitation control system for a hydrostatic transmission 失效
标题翻译：防静电传动防腐控制系统
公开(公告)号：US4495767A
公开(公告)日：1985-01-29
申请号：US445533
申请日：1982-11-30
申请人： Teruo Akiyama , Koichi Morita
发明人： Teruo Akiyama , Koichi Morita
IPC分类号： B60K17/10 , B60T13/22 , F15B11/044 , F16H61/66 , F16D31/02
CPC分类号： F16H61/40 , B60K17/10 , B60W10/10 , B60W10/18 , F15B11/0445 , F16H61/4157 , F15B2211/20553 , F15B2211/20561 , F15B2211/27 , F15B2211/3058 , F15B2211/40515 , F15B2211/45 , F15B2211/613 , F15B2211/6355 , F15B2211/7058 , F15B2211/715 , F15B2211/75 , F15B2211/8609 , Y10T477/813
摘要： A hydrostatic transmission has an engine-driven, bidirectional, variable-displacement drive pump connected in circuit with a bidirectional, variable-displacement propelling motor. A charging pump is also connected to the circuit of the drive pump and the propelling motor. A brake assembly normally locks the output shaft of the propelling motor against rotation and releases same only while being supplied with a hydraulic brake release signal. The control system for the hydrostatic transmission comprises a speed control valve actuated manually to deliver fluid pressure signals to servo controls for adjusting the outputs from the drive pump and the propelling motor, and a brake control valve pilot-operated to deliver the brake release signal to the brake assembly. Also included are a charge sensor valve and a speed control sensor valve. The two sensor valves cooperate to cause the output from the charging pump to pilot-actuate the brake control valve, for the delivery of the brake release signal, only when the charging pump output pressure rises to a predetermined level and, simultaneously, when the speed control valve is being manipulated. Whenever the charging pump output pressure falls below the predetermined level, the sensor valves cause the brake control valve to terminate the production of the brake release signal and to drain the signal output ports of the speed control valve, thereby causing the transmission to stop the vehicle and so avoiding cavitation in the drive pump and the propelling motor.
摘要翻译：液压传动装置具有发动机驱动的，双向的，可变排量的驱动泵，其与双向可变排量推进电动机连接。充电泵也连接到驱动泵和推进电机的电路。制动组件通常将推进马达的输出轴锁定在旋转状态，而仅在提供液压制动释放信号时释放。用于静液压变速器的控制系统包括手动致动的速度控制阀，以将流体压力信号传送到伺服控制器，用于调节来自驱动泵和推进电动机的输出;以及先导操作的制动控制阀，以将制动释放信号传送到制动总成。还包括充电传感器阀和速度控制传感器阀。两个传感器阀门协调，使得来自充电泵的输出仅在充电泵输出压力上升到预定水平时才引导致动制动控制阀，用于传递制动释放信号，同时当速度控制阀正在被操纵。每当充电泵输出压力低于预定水平时，传感器阀使制动控制阀终止制动释放信号的产生，并排出速度控制阀的信号输出端口，从而使变速器停止车辆并且因此避免驱动泵和推进电机中的气蚀。

17. 发明授权

US09683585B2 Hydraulic drive system 有权
公开(公告)号：US09683585B2
公开(公告)日：2017-06-20
申请号：US14129387
申请日：2012-08-13
申请人： Teruo Akiyama , Noboru Iida , Koji Saito , Takayuki Watanabe , Koji Yamashita
发明人： Teruo Akiyama , Noboru Iida , Koji Saito , Takayuki Watanabe , Koji Yamashita
IPC分类号： F15B11/042 , E02F9/22 , F15B11/04
CPC分类号： F15B11/0423 , E02F9/2217 , E02F9/2228 , E02F9/2232 , E02F9/2285 , E02F9/2289 , E02F9/2292 , E02F9/2296 , F15B11/0413 , F15B2211/20546 , F15B2211/20561 , F15B2211/20576 , F15B2211/27 , F15B2211/613 , F15B2211/633 , F15B2211/6346 , F15B2211/7053 , F15B2211/785
摘要： A hydraulic driving system includes a hydraulic pump, a driving source, a hydraulic cylinder, a closed circuit hydraulic path between the pump and cylinder, a pump-flow-rate control unit controlling a discharge flow rate of the pump, a flow rate control valve between the pump and the cylinder in the fluid path, a directional control unit, a target flow rate setting unit and a control device. The directional control unit allows a flow of fluid from the pump to the cylinder and prohibits a flow of fluid from the cylinder to the pump when fluid is supplied from the pump to the cylinder via the flow rate control valve. The control device controls fluid flow to the cylinder with the flow rate control valve when the target flow rate is within a prescribed range, and with the pump-flow-rate control unit when the target flow rate is greater than the prescribed range.

18. 发明申请

US20140130487A1 HYDRAULIC DRIVE SYSTEM 有权
标题翻译：液压驱动系统
公开(公告)号：US20140130487A1
公开(公告)日：2014-05-15
申请号：US14129387
申请日：2012-08-13
申请人： Teruo Akiyama , Noboru Iida , Koji Saito , Takayuki Watanabe , Koji Yamashita
发明人： Teruo Akiyama , Noboru Iida , Koji Saito , Takayuki Watanabe , Koji Yamashita
IPC分类号： F15B11/042 , F15B11/04 , E02F9/22
CPC分类号： F15B11/0423 , E02F9/2217 , E02F9/2228 , E02F9/2232 , E02F9/2285 , E02F9/2289 , E02F9/2292 , E02F9/2296 , F15B11/0413 , F15B2211/20546 , F15B2211/20561 , F15B2211/20576 , F15B2211/27 , F15B2211/613 , F15B2211/633 , F15B2211/6346 , F15B2211/7053 , F15B2211/785
摘要： A hydraulic driving system includes a hydraulic pump, a driving source, a hydraulic cylinder, a closed circuit hydraulic path between the pump and cylinder, a pump-flow-rate control unit controlling a discharge flow rate of the pump, a flow rate control valve between the pump and the cylinder in the fluid path, a directional control unit, a target flow rate setting unit and a control device. The directional control unit allows a flow of fluid from the pump to the cylinder and prohibits a flow of fluid from the cylinder to the pump when fluid is supplied from the pump to the cylinder via the flow rate control valve. The control device controls fluid flow to the cylinder with the flow rate control valve when the target flow rate is within a prescribed range, and with the pump-flow-rate control unit when the target flow rate is greater than the prescribed range.
摘要翻译：液压驱动系统包括液压泵，驱动源，液压缸，泵和缸之间的闭路液压路径，控制泵的排出流量的泵流量控制单元，流量控制阀在流体路径中的泵和缸之间，方向控制单元，目标流量设定单元和控制装置。方向控制单元允许流体从泵到气缸流动，并且当流体经由流量控制阀从泵供应到气缸时，阻止流体从气缸流到泵。当目标流量在规定范围内时，控制装置利用流量控制阀，当目标流量大于规定范围时，利用泵流量控制单元来控制流向缸的流体。

19. 发明申请

US20120304635A1 Engine Control Device 有权
标题翻译：发动机控制装置
公开(公告)号：US20120304635A1
公开(公告)日：2012-12-06
申请号：US13577217
申请日：2011-02-01
申请人： Takeshi Ooi , Masashi Ichihara , Teruo Akiyama , Hisashi Asada
发明人： Takeshi Ooi , Masashi Ichihara , Teruo Akiyama , Hisashi Asada
IPC分类号： F02D29/04
CPC分类号： E02F9/2246 , E02F9/2296 , F02D29/04 , F02D31/007 , F02D41/0205 , F02D41/021 , F02D2250/18
摘要： A first target engine speed is set in response to a command value commanded by a command unit. A second target engine speed equal to or lower than the first target engine speed is set based on the first target engine speed. When the first target engine speed is reduced, the second target engine speed is set to be constant or be decreased and a reduction range for decreasing the first target engine speed to the second target engine speed is set to be decreased. The reduction range is set at zero when the first target engine speed is equal to or lower than an engine speed at least at a maximum torque point.
摘要翻译：响应于由命令单元指令的命令值设定第一目标发动机转速。基于第一目标发动机转速来设定等于或低于第一目标发动机转速的第二目标发动机转速。当第一目标发动机转速降低时，将第二目标发动机转速设定为恒定或减小，并且将用于将第一目标发动机转速降低至第二目标发动机转速的减小范围设定为减小。当第一目标发动机转速等于或低于至少在最大扭矩点处的发动机转速时，减速范围被设定为零。

20. 发明授权

US5622206A Multiple valve unit for pressurized fluid supply system 失效
标题翻译：用于加压流体供应系统的多个阀单元
公开(公告)号：US5622206A
公开(公告)日：1997-04-22
申请号：US552693
申请日：1995-11-03
申请人： Masamitsu Takeuchi , Kazunori Ikei , Tadao Karakama , Mitsumasa Akashi , Teruo Akiyama , Jun Maruyama , Keisuke Taka
发明人： Masamitsu Takeuchi , Kazunori Ikei , Tadao Karakama , Mitsumasa Akashi , Teruo Akiyama , Jun Maruyama , Keisuke Taka
IPC分类号： E02F9/22 , F15B11/16 , F15B13/00 , F15B13/04 , F15B13/08
CPC分类号： F15B11/165 , E02F9/2225 , E02F9/2232 , E02F9/2267 , E02F9/2296 , F15B11/163 , F15B11/168 , F15B13/0417 , F15B13/0839 , F15B13/0896 , F15B2211/20553 , F15B2211/253 , F15B2211/30505 , F15B2211/30525 , F15B2211/30535 , F15B2211/3111 , F15B2211/3116 , F15B2211/3144 , F15B2211/31511 , F15B2211/31576 , F15B2211/329 , F15B2211/351 , F15B2211/355 , F15B2211/6054 , F15B2211/6058 , F15B2211/71 , Y10T137/87169 , Y10T137/87885
摘要： A multiple valve includes first and second valve units respectively having first and second valve bodies. The first and second valve bodies have respective spool bores therein; and a respective spool is inserted in the spool bore of each of the first and second valve bodies. The first and second valve bodies of the first and second valve units also have inlet ports, tank ports, and first and second blocks having mounting holes, the blocks and a respective valve body being fixedly coupled together by means of stud bolts. The first block has a first threaded hole on one side surface thereof for receiving the stud bolt, and a second threaded hole on another side surface thereof for receiving a cover bolt. A pump passage, a main passage and a tank passage extend between the one side surface and the another side surface of the first block, and a stud bolt extends through the second block and is engaged with the first threaded hole. A cover is fixedly mounted on the another side surface of the first block by a cover bolt which is engaged with the second threaded hole, the cover having a cut-out groove therein for communicating the pump passage with the main passage.
摘要翻译：多阀包括分别具有第一和第二阀体的第一和第二阀单元。第一和第二阀体在其中具有各自的阀芯孔; 并且相应的卷轴插入每个第一和第二阀体的滑阀孔中。第一和第二阀单元的第一和第二阀体还具有入口端口，罐口，以及具有安装孔的第一和第二块，所述块和相应的阀体通过双头螺栓固定地联接在一起。第一块在其一个侧表面上具有用于接收双头螺栓的第一螺纹孔，在另一个侧表面上具有用于接收盖螺栓的第二螺纹孔。泵通道，主通道和罐通道在第一块的一个侧表面和另一个侧表面之间延伸，并且双头螺栓延伸穿过第二块并与第一螺纹孔接合。盖通过与第二螺纹孔接合的盖螺栓固定地安装在第一块的另一侧表面上，盖在其中具有用于使泵通道与主通道连通的切口槽。

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