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1. 发明申请

US20180128290A1 METHOD TO AUTOMATICALLY DETECT PARAMETER FOR PRESSURE DYNAMICS CONTROL 审中-公开
公开(公告)号：US20180128290A1
公开(公告)日：2018-05-10
申请号：US15808212
申请日：2017-11-09
申请人： Eaton Corporation
发明人： Meng Wang , Michael Berne Rannow
IPC分类号： F15B13/04 , G01N3/08 , F16K37/00
CPC分类号： F15B19/002 , F15B11/006 , F15B13/0417 , F15B19/00 , F15B19/005 , F15B19/007 , F15B21/087 , F15B2013/0409 , F15B2211/20546 , F15B2211/30575 , F15B2211/455 , F15B2211/46 , F15B2211/6313 , F15B2211/634 , F15B2211/6346 , F15B2211/6656 , F15B2211/7053 , F15B2211/7058 , F15B2211/761 , F15B2211/855 , F15B2211/857 , F15B2211/87 , G01F1/36 , G01F15/005
摘要： Systems and methods for auto-commissioning first and second valve assemblies associated with an actuator in an electro-hydraulic system are disclosed. In one method, a controller performs an automatic test protocol to determine a bulk modulus over fluid volume parameter used by the controller to control the valve assemblies. In one aspect, the test protocol can include pressurizing each side of the actuator to two different pressures with one of the first and second valve assemblies and blocking the other side of the actuator with the other of the first and second valve assemblies. The bulk modulus over fluid volume parameter for each valve assembly can be calculated based on recorded fluid pressures at the actuator and consumed flow at the first and second valve assemblies.

2. 发明授权

US09964129B2 Method for determining a control force of an actuator 有权
公开(公告)号：US09964129B2
公开(公告)日：2018-05-08
申请号：US14863632
申请日：2015-09-24
申请人： ZF Friedrichshafen AG
发明人： Alain Tierry Chamaken Kamde , Wilhelm Moser
IPC分类号： F15B19/00 , G05B1/00 , F15B11/042
CPC分类号： F15B19/007 , F15B11/0426 , F15B2211/30575 , F15B2211/3138 , F15B2211/6336 , G05B1/00
摘要： A method for determining an operating force (Fp) of a positioning actuator (3), whose adjustment movements are produced by virtue of an appropriate supply of a working medium via actuating at least one valve (4 to 7) associated with the positioning actuator (3). The operating force (Fp) is determined by computational determination. To be able to carry out the computational determination of the operating force (Fp) with little effort, by the at least one valve (4 to 7) in each case, a respective, essentially constant mass flow ({dot over (m)}iv, {dot over (m)}ov) of working medium is maintained either into the positioning actuator (3) and/or out of the positioning actuator (3).

3. 发明授权

US09441348B1 Hydraulic system with operator skill level compensation 有权
标题翻译：具有操作员技能水平补偿的液压系统
公开(公告)号：US09441348B1
公开(公告)日：2016-09-13
申请号：US14675011
申请日：2015-03-31
申请人： Caterpillar Inc.
发明人： Jeffrey S. Alig , Conrad G. Grembowicz , Bradley Bomer , Jeffrey Fletcher , Karl Kirsch , Zhijun Cai
IPC分类号： F15B15/14 , E02F9/22 , E02F3/43 , E02F9/20 , E02F3/42 , F15B13/04
CPC分类号： E02F9/2228 , E02F3/422 , E02F3/431 , E02F9/2004 , E02F9/2012 , F15B13/0401 , F15B15/14 , F15B19/007 , F15B2211/327 , F15B2211/351 , F15B2211/665 , F15B2211/6654 , F15B2211/6658 , F15B2211/75 , F15B2211/8643
摘要： A hydraulic system for a machine is provided including a first cylinder, a pump and an operator input device for entering a commanded rate of flow of hydraulic fluid to the first cylinder. A control valve operatively is connected between the pump and the first cylinder. A sensor is configured and arranged to provide signals relating to a first operating characteristic of the machine. A controller is in communication with the operator input device, the control valve and the sensor. The controller is configured to determine a skill level of an operator of the machine based on a comparison of the first operating characteristic of the machine and a first threshold and to direct the control valve to provide hydraulic fluid to the first cylinder at an adjusted hydraulic fluid flow rate if the skill level of the operator is below a predetermined level.
摘要翻译：提供了一种用于机器的液压系统，包括第一气缸，泵和用于将液压流体的指令流量输入到第一气缸的操作者输入装置。控制阀可操作地连接在泵和第一气缸之间。传感器被配置和布置成提供与机器的第一操作特性有关的信号。控制器与操作员输入装置，控制阀和传感器通信。控制器被配置为基于机器的第一操作特性与第一阈值的比较来确定机器的操作者的技能水平，并且引导控制阀以在调节的液压流体下向第一气缸提供液压流体如果操作者的技能水平低于预定水平，则流量。

4. 发明申请

US20040167726A1 Method of flow control 审中-公开
标题翻译：流量控制方法
公开(公告)号：US20040167726A1
公开(公告)日：2004-08-26
申请号：US10374128
申请日：2003-02-25
发明人： Gino James Rouss
IPC分类号： G06G007/48
CPC分类号： G01F1/36 , F15B19/007 , G01F1/42
摘要： An improved method of flow control by developing a dimensionless model describing Reynolds number values of a pipe as a function of Reynolds numbers of a flow control device connected to the pipe. The model describes the effect on flow performance of the flow control device due to variations of choke sizes operatively installed in proximity to the flow control device. The model is then utilized to determine the characteristic dimension of a choke to be placed in proximity to a flow control device in order to achieve a desired flow coefficient value.
摘要翻译：通过开发描述管道的雷诺数值作为连接到管道的流量控制装置的雷诺数的函数的无量纲模型的改进的流量控制方法。该模型描述了由于可操作地安装在流量控制装置附近的扼流圈尺寸的变化，对流量控制装置的流动性能的影响。然后利用该模型来确定要放置在流量控制装置附近的扼流圈的特征尺寸，以获得所需的流量系数值。

5. 发明授权

US06637271B1 Method and apparatus for identifying and eliminating vibration symptoms in hydraulic clutch actuators 失效
标题翻译：用于识别和消除液压离合器执行机构振动症状的方法和装置
公开(公告)号：US06637271B1
公开(公告)日：2003-10-28
申请号：US10011799
申请日：2001-12-04
申请人： Arlan Vennefron , Jiamu Hu
发明人： Arlan Vennefron , Jiamu Hu
IPC分类号： G01N332
CPC分类号： F16D25/12 , F15B7/00 , F15B19/007
摘要： The present invention provides a method and apparatus for identifying and eliminating vibration in a hydraulic clutch actuator. The vibration is identified by using transducers to characterize the vibrational characteristics of a power train of a vehicle. That characterization is used to program a shaker on a test bed to replicate the vibrations on the vehicle in a hydraulic clutch actuator. Different hydraulic dampers may be employed to eliminate the vibration. The preferred apparatus of the present invention includes a two piece hydraulic damper which may be opened as to insert different diaphragms for testing.
摘要翻译：本发明提供一种用于识别和消除液压离合器致动器中的振动的方法和装置。通过使用换能器来表征车辆的动力传动系的振动特性来识别振动。该表征用于对测试台上的振动器进行编程，以在液压离合器致动器中复制车辆上的振动。可以采用不同的液压阻尼器来消除振动。本发明的优选装置包括两片液压阻尼器，其可以打开以插入不同的隔膜用于测试。

6. 发明申请

US20020069916A1 METHOD AND APPARATUS FOR DETERMINING A VALVE STATUS 失效
标题翻译：用于确定阀状态的方法和装置
公开(公告)号：US20020069916A1
公开(公告)日：2002-06-13
申请号：US09733178
申请日：2000-12-08
发明人： Alan L. Ferguson , Matthew C. Full , Matthew J. Miller , Michael K. Oudyn , Derek A. Sauder
IPC分类号： G05D007/06
CPC分类号： F04B49/065 , F04B49/10 , F04B2205/06 , F04B2205/09 , F15B19/005 , F15B19/007 , F15B2211/20538 , F15B2211/20546 , F15B2211/6306 , F15B2211/632 , F15B2211/634 , F15B2211/6346 , F15B2211/8636 , F15B2211/87 , F16K37/0091 , Y10T137/0324 , Y10T137/7761 , Y10T137/8158
摘要： The present invention provides a method and apparatus for detecting a status of a valve, the valve being connected to a fluid circuit. The method includes the steps of establishing an expected value of a characteristic of the fluid of the fluid circuit, determining an actual value of the fluid characteristic of the fluid circuit, and determining a valve status in response to the actual value, and the expected value.
摘要翻译：本发明提供了一种用于检测阀的状态的方法和装置，该阀连接到流体回路。该方法包括以下步骤：确定流体回路的流体的特性的预期值，确定流体回路的流体特性的实际值，以及响应于实际值确定阀状态，以及期望值。

7. 发明申请

US20180128292A1 CONTROL STRATEGY FOR HYDRAULIC ACTUATOR WITH A PAIR OF INDEPENDENT METERING VALVES 审中-公开
公开(公告)号：US20180128292A1
公开(公告)日：2018-05-10
申请号：US15808373
申请日：2017-11-09
申请人： Eaton Corporation
发明人： Meng Wang , Michael Berne Rannow
IPC分类号： F15B21/02 , F15B11/00 , F15B21/08
CPC分类号： F15B19/002 , F15B11/006 , F15B13/0417 , F15B19/00 , F15B19/005 , F15B19/007 , F15B21/087 , F15B2013/0409 , F15B2211/20546 , F15B2211/30575 , F15B2211/455 , F15B2211/46 , F15B2211/6313 , F15B2211/634 , F15B2211/6346 , F15B2211/6656 , F15B2211/7053 , F15B2211/7058 , F15B2211/761 , F15B2211/855 , F15B2211/857 , F15B2211/87 , G01F1/36 , G01F15/005
摘要： Systems and methods for controlling valve assemblies associated with an actuator in an electro-hydraulic system are disclosed. In one method, a controller monitors hydraulic fluid flow for an actuator to identify one valve assembly connected to the actuator as a meter-in valve and another valve assembly connected to the actuator as a meter-out valve. In one aspect, the valve assembly most recently identified as the meter-in valve is controlled to maintain a pressure setpoint and the valve assembly most recently identified as the meter-out valve is controlled to maintain a hydraulic fluid flow rate. The method can also include determining whether the actuator is in a passive state or an overrunning state and controlling the valve most recently identified as the meter-in valve to maintain a first pressure setpoint when the actuator is in a passive state and to maintain a second pressure setpoint when the actuator is in an overrunning state.

8. 发明申请

US20180030692A1 CONTROL SYSTEM, WORK MACHINE, AND CONTROL METHOD 审中-公开
公开(公告)号：US20180030692A1
公开(公告)日：2018-02-01
申请号：US15506799
申请日：2016-07-29
申请人： Komatsu Ltd.
发明人： Yuta Kamoshita , Tadashi Kawaguchi , Teruo Akiyama
IPC分类号： E02F9/22 , F16H61/47 , F16H61/4008 , F15B11/16
CPC分类号： E02F9/2228 , E02F9/2242 , E02F9/2253 , E02F9/2296 , F15B11/163 , F15B11/17 , F15B19/007 , F15B2211/20546 , F15B2211/20576 , F15B2211/3054 , F15B2211/30595 , F15B2211/6309 , F15B2211/6313 , F15B2211/6333 , F15B2211/6652 , F15B2211/6654 , F16H61/4008 , F16H61/47
摘要： A control system includes a cylinder pressure data acquisition unit that acquires cylinder pressure data indicating a pressure of operating oil of a hydraulic cylinder; an operation amount data acquisition unit that acquires operation amount data of an operating device; a pump flow rate calculation unit that calculates a first pump flow rate indicating a flow rate of the operating oil discharged from a first hydraulic pump and a second pump flow rate indicating a flow rate of the operating oil discharged from a second hydraulic pump in a splitting state in which a passage is closed based on the cylinder pressure data and the operation amount data; and a pump control unit that controls the first hydraulic pump and the second hydraulic pump based on the first pump flow rate and the second pump flow rate.

9. 发明申请

US20170029256A1 LOAD DEPENDENT ELECTRONIC VALVE ACTUATOR REGULATION AND PRESSURE COMPENSATION 审中-公开
标题翻译：负载依赖电子阀执行器调节和压力补偿
公开(公告)号：US20170029256A1
公开(公告)日：2017-02-02
申请号：US15182875
申请日：2016-06-15
申请人： DANFOSS POWER SOLUTIONS GMBH & CO OHG
发明人： Abhijit Das , Lee Mahlum , Luke Wadsley , Richard Hitchcock , Jeffrey A. Sipila , Larry Joachim
IPC分类号： B66F9/24 , B66F9/22 , F16K31/02
CPC分类号： B66F9/24 , B66F9/22 , E02F9/2203 , E02F9/2228 , F15B11/04 , F15B19/007 , F15B21/087 , F15B2211/6306 , F15B2211/6313 , F15B2211/6346 , F15B2211/6656 , F15B2211/75 , F15B2211/761 , F15B2211/857 , F16K31/02
摘要： A hydraulic control system that uses system pressure information and a rescaled operator input to command valve spool area to control actuator speed. The system uses soft sealing and/or soft pressure compensation.
摘要翻译：液压控制系统，使用系统压力信息和重新调节的操作员输入来指示阀芯区域来控制执行器速度。该系统使用软密封和/或软压力补偿。

10. 发明申请

US20160091001A1 METHOD FOR DETERMINING A CONTROL FORCE OF AN ACTUATOR 有权
标题翻译：确定执行机构控制力的方法
公开(公告)号：US20160091001A1
公开(公告)日：2016-03-31
申请号：US14863632
申请日：2015-09-24
申请人： ZF Friedrichshafen AG
发明人： Alain Tierry CHAMAKEN KAMDE , Wilhelm MOSER
IPC分类号： F15B19/00 , F15B13/04 , F15B15/14
CPC分类号： F15B19/007 , F15B11/0426 , F15B2211/30575 , F15B2211/3138 , F15B2211/6336 , G05B1/00
摘要： A method for determining an operating force (Fp) of a positioning actuator (3), whose adjustment movements are produced by virtue of an appropriate supply of a working medium via actuating at least one valve (4 to 7) associated with the positioning actuator (3). The operating force (Fp) is determined by computational determination. To be able to carry out the computational determination of the operating force (Fp) with little effort, by the at least one valve (4 to 7) in each case, a respective, essentially constant mass flow ({dot over (m)}iv, {dot over (m)}ov) of working medium is maintained either into the positioning actuator (3) and/or out of the positioning actuator (3).
摘要翻译：一种用于确定定位致动器（3）的操作力（Fp）的方法，所述定位致动器（3）的调节运动是通过致动与定位致动器相关联的至少一个阀（4至7）而适当地供应工作介质而产生的 3）。操作力（Fp）由计算确定确定。为了能够在几乎没有力量的情况下通过至少一个阀（4至7）执行操作力（Fp）的计算确定，各自基本上恒定的质量流（{dot（（m）}） iv，将工作介质的{dot over（m）} ov保持在定位致动器（3）和/或定位致动器（3）中。

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