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1. 发明授权

US09109346B2 Hydraulic swing-controlling apparatus of work machine 有权
标题翻译：工作机液压摆动控制装置
公开(公告)号：US09109346B2
公开(公告)日：2015-08-18
申请号：US13382127
申请日：2010-08-18
申请人： Tetsuya Yoshino , Seiichi Akiyama , Yuya Kanenawa
发明人： Tetsuya Yoshino , Seiichi Akiyama , Yuya Kanenawa
IPC分类号： F16D31/02 , E02F9/22 , F04B49/00 , E02F9/12
CPC分类号： E02F9/2235 , E02F9/123 , E02F9/2282 , E02F9/2285 , E02F9/2296 , F04B49/002 , F15B2211/20546 , F15B2211/3051 , F15B2211/50518 , F15B2211/50527 , F15B2211/6054 , F15B2211/6309 , F15B2211/6316 , F15B2211/65 , F15B2211/7058
摘要： In a work machine including a hydraulic pump (1), a swing motor (2), and swing relief valves (3a and 3b), the amount of the swing operation (P1) related to the swing motion of the swing motor (2) is detected, and the hydraulic pressure (P2) supplied from the hydraulic pump (1) to the swing motor is also detected. Additionally, the required flow rate (FR) of hydraulic oil required for the swing motor (1) is set based on the amount of the swing operation (P1). In addition, the volume of relief (FE) is estimated from the hydraulic pressure (P2) based on the override characteristics of the swing relief valves (3a and 3b). The discharge flow rate of the hydraulic pump (1) is controlled based on the value obtained by subtracting the volume of relief (FE) from the required flow rate (FR).
摘要翻译：在包括液压泵（1），摆动马达（2）和摆动释放阀（3a和3b）的作业机械中，与摆动马达（2）的摆动相关的摆动操作量（P1）并且还检测从液压泵（1）供给到回转马达的液压（P2）。此外，基于摆动操作量（P1）设定回转马达（1）所需的液压油所需的流量（FR）。此外，基于回转溢流阀（3a和3b）的超驰特性，从液压（P2）估计浮力体积（FE）。基于通过从所需流量（FR）减去浮动体积（FE）而获得的值来控制液压泵（1）的排出流量。

2. 发明授权

US08899035B2 Hydraulic control apparatus for work machine 有权
标题翻译：工作机液压控制装置
公开(公告)号：US08899035B2
公开(公告)日：2014-12-02
申请号：US13265750
申请日：2010-08-17
申请人： Hiroyasu Nishikawa , Seiichi Akiyama , Yusuke Shimizu , Atsunobu Doi , Sei Shimahara , Manabu Nakanishi , Masashi Shibata
发明人： Hiroyasu Nishikawa , Seiichi Akiyama , Yusuke Shimizu , Atsunobu Doi , Sei Shimahara , Manabu Nakanishi , Masashi Shibata
IPC分类号： F16D31/02 , E02F9/22 , F15B11/042
CPC分类号： E02F9/2235 , E02F9/2282 , E02F9/2285 , E02F9/2296 , F15B11/0423 , F15B2211/20523 , F15B2211/20553 , F15B2211/255 , F15B2211/3116 , F15B2211/45 , F15B2211/6316 , F15B2211/633 , F15B2211/6652 , F15B2211/6654 , F15B2211/85 , F15B2211/88
摘要： A hydraulic pump driven by an engine, a hydraulic actuator, and a negative control circuit are provided on an open center hydraulic circuit, for guiding the hydraulic pressure in the center bypass to the hydraulic pump, as a negative control pressure. A negative control pressure control device controls the negative control pressure to an arbitrary value is also provided. The pump characteristic of the hydraulic pump is set such that the discharge flow rate is minimized when the negative control pressure in the negative control circuit is equal to or greater than a first predetermined pressure. Furthermore, an idling detection device that detects whether the hydraulic actuator is in a non-operated state or not is provided. The negative control pressure is forcefully controlled to the first predetermined pressure or higher when the non-operating state is detected.
摘要翻译：由发动机驱动的液压泵，液压致动器和负控制回路设置在开启中心液压回路上，用于将中心旁路中的液压引导到液压泵，作为负控制压力。还提供负控制压力控制装置将负控制压力控制为任意值。液压泵的泵特性被设定为当负控制回路中的负控制压力等于或大于第一预定压力时，排出流量最小化。此外，提供了检测液压致动器是否处于非操作状态的怠速检测装置。当检测到非操作状态时，负控制压力被强制地控制到第一预定压力或更高。

3. 发明申请

US20120131913A1 HYDRAULIC SWING-CONTROLLING APPARATUS OF WORK MACHINE 有权
标题翻译：液压摆动控制装置
公开(公告)号：US20120131913A1
公开(公告)日：2012-05-31
申请号：US13382127
申请日：2010-08-18
申请人： Tetsuya Yoshino , Seiichi Akiyama , Yuya Kanenawa
发明人： Tetsuya Yoshino , Seiichi Akiyama , Yuya Kanenawa
IPC分类号： F16D31/02
CPC分类号： E02F9/2235 , E02F9/123 , E02F9/2282 , E02F9/2285 , E02F9/2296 , F04B49/002 , F15B2211/20546 , F15B2211/3051 , F15B2211/50518 , F15B2211/50527 , F15B2211/6054 , F15B2211/6309 , F15B2211/6316 , F15B2211/65 , F15B2211/7058
摘要： In a work machine including a hydraulic pump (1), a swing motor (2), and swing relief valves (3a and 3b), the amount of the swing operation (P1) related to the swing motion of the swing motor (2) is detected, and the hydraulic pressure (P2) supplied from the hydraulic pump (1) to the swing motor is also detected. Additionally, the required flow rate (FR) of hydraulic oil required for the swing motor (1) is set based on the amount of the swing operation (P1). In addition, the volume of relief (FE) is estimated from the hydraulic pressure (P2) based on the override characteristics of the swing relief valves (3a and 3b). The discharge flow rate of the hydraulic pump (1) is controlled based on the value obtained by subtracting the volume of relief (FE) from the required flow rate (FR).
摘要翻译：在包括液压泵（1），摆动马达（2）和摆动释放阀（3a和3b）的作业机械中，与摆动马达（2）的摆动相关的摆动操作量（P1）并且还检测从液压泵（1）供给到回转马达的液压（P2）。此外，基于摆动操作量（P1）设定回转马达（1）所需的液压油所需的流量（FR）。此外，基于回转溢流阀（3a和3b）的超驰特性，从液压（P2）估计浮力体积（FE）。基于通过从所需流量（FR）减去浮动体积（FE）而获得的值来控制液压泵（1）的排出流量。

4. 发明申请

US20120036845A1 HYDRAULIC CONTROL APPARATUS FOR WORK MACHINE 有权
标题翻译：液压控制装置
公开(公告)号：US20120036845A1
公开(公告)日：2012-02-16
申请号：US13265750
申请日：2010-08-17
申请人： Hiroyasu Nishikawa , Seiichi Akiyama , Yusuke Shimizu , Atsunobu Doi , Sei Shimahara , Manabu Nakanishi , Masashi Shibata
发明人： Hiroyasu Nishikawa , Seiichi Akiyama , Yusuke Shimizu , Atsunobu Doi , Sei Shimahara , Manabu Nakanishi , Masashi Shibata
IPC分类号： F15B15/02
CPC分类号： E02F9/2235 , E02F9/2282 , E02F9/2285 , E02F9/2296 , F15B11/0423 , F15B2211/20523 , F15B2211/20553 , F15B2211/255 , F15B2211/3116 , F15B2211/45 , F15B2211/6316 , F15B2211/633 , F15B2211/6652 , F15B2211/6654 , F15B2211/85 , F15B2211/88
摘要： A hydraulic pump driven by an engine, a hydraulic actuator, and a negative control circuit are provided on an open center hydraulic circuit, for guiding the hydraulic pressure in the center bypass to the hydraulic pump, as a negative control pressure. A negative control pressure control device controls the negative control pressure to an arbitrary value is also provided. The pump characteristic of the hydraulic pump is set such that the discharge flow rate is minimized when the negative control pressure in the negative control circuit is equal to or greater than a first predetermined pressure. Furthermore, an idling detection device that detects whether the hydraulic actuator is in a non-operated state or not is provided. The negative control pressure is forcefully controlled to the first predetermined pressure or higher when the non-operating state is detected.
摘要翻译：由发动机驱动的液压泵，液压致动器和负控制回路设置在开启中心液压回路上，用于将中心旁路中的液压引导到液压泵，作为负控制压力。还提供负控制压力控制装置将负控制压力控制为任意值。液压泵的泵特性被设定为当负控制回路中的负控制压力等于或大于第一预定压力时，排出流量最小化。此外，提供了检测液压致动器是否处于非操作状态的怠速检测装置。当检测到非操作状态时，负控制压力被强制地控制到第一预定压力或更高。

5. 发明授权

US06672055B1 Hydraulic pump control device 失效
标题翻译：液压泵控制装置
公开(公告)号：US06672055B1
公开(公告)日：2004-01-06
申请号：US09869924
申请日：2001-07-09
申请人： Hideo Konishi , Kenji Arai , Seiichi Akiyama , Masumi Nomura
发明人： Hideo Konishi , Kenji Arai , Seiichi Akiyama , Masumi Nomura
IPC分类号： F16D3102
CPC分类号： E02F9/2292 , E02F9/2235 , E02F9/2296 , F04B49/08 , F04B2201/1203 , F04B2203/0604
摘要： Disclosed herein is a hydraulic-pump controller that is capable of controlling absorbed pump torque in good balance against engine output at all times. In this hydraulic-pump controller, the discharge flow rates of the operating oil that are discharged from hydraulic pumps (9, 10) according to manipulation of manipulation units (12, 13) are predicted based on the discharge pressure of the hydraulic pumps (9, 10) that are driven by an engine (1), and based on the manipulation amount of the manipulation units (12, 13) that manipulate hydraulic actuators (27, 28), or a physical quantity correlating with the manipulation amount. Based on the predicted discharge flow rates and the discharge pressure, the absorbed torque of the hydraulic pumps is computed. Then, the predictive engine speed of the engine (11) is computed from the absorbed torque of the hydraulic pumps (9, 10) computed. Based on the deviation between the computed predictive engine speed and the actual engine speed of the engine (11), the regulators (12, 13) of the hydraulic pumps (9, 10) are controlled.
摘要翻译：本文公开了一种液压泵控制器，其能够始终控制吸收的泵扭矩与发动机输出的良好平衡。在该液压泵控制器中，基于操作单元（12,13）的操作从液压泵（9,10）排出的工作油的排出流量基于液压泵（9）的排出压力，10），并且基于操纵液压致动器（27,28）的操作单元（12,13）的操作量或与操作量相关的物理量。基于预测的排放流量和排放压力，计算出液压泵的吸收扭矩。然后，从计算出的液压泵（9,10）的吸收转矩算出发动机（11）的预测发动机转速。基于计算出的预测发动机速度与发动机（11）的实际发动机转速之间的偏差，控制液压泵（9,10）的调节器（12,13）。

6. 发明授权

US06810663B2 Fluid pressure circuit control system 失效
标题翻译：流体压力回路控制系统
公开(公告)号：US06810663B2
公开(公告)日：2004-11-02
申请号：US10344087
申请日：2003-02-07
申请人： Hideo Konishi , Seiichi Akiyama , Masayuki Tanaka
发明人： Hideo Konishi , Seiichi Akiyama , Masayuki Tanaka
IPC分类号： E02F922
CPC分类号： E02F9/2285 , E02F3/965 , E02F9/2228 , E02F9/2242 , E02F9/2292 , F15B11/162 , F15B11/167 , F15B11/17 , F15B2211/3057 , F15B2211/3059 , F15B2211/3116 , F15B2211/6316 , F15B2211/6355 , F15B2211/7142 , F15B2211/781
摘要： Hydraulic oil supplied from pumps (12),(13) to an attachment actuator (60) is controlled by attachment control valves (27),(28). Hydraulic oil supplied from pumps (12),(13) to other actuators (52),(54),(56),(58) is controlled by other control valves (21) through (26). Control conditions for operating the attachment actuator (60) alone and control conditions for operating the attachment actuator (60) simultaneously with any of the other actuators (52),(54),(56),(58) are discriminated by the pilot pressure sensors (32),(34),(36),(38). Control characteristics of the attachment control valves (27),(28) are controlled by a controller (43) based on the discriminated control conditions.

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