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公开(公告)号：US09599107B2
公开(公告)日：2017-03-21
申请号：US14162912
申请日：2014-01-24
Applicant: CNH America, LLC
Inventor： Duqiang Wu , Navneet Gulati
IPC: F04B1/32 , F16H61/425 , F04B49/06 , B60K6/08 , E02F9/22
CPC classification number: F04B49/06 , B60K6/08 , E02F9/2253 , E02F9/2289 , F04B1/324 , F04B49/065 , F04B2201/12051 , F16H61/425
Abstract: A method for controlling a hydrostatic drive unit of a work vehicle may generally include determining a reference swashplate position of a hydraulic pump of the hydrostatic drive unit, wherein the reference swashplate position is associated with an uncompensated current command, and determining an actual swashplate position of the hydraulic pump, wherein the actual swashplate position differs from the reference swashplate position due to a loading condition of the work vehicle. The method may also include determining a closed-loop current command based a on the actual and reference swashplate positions and generating a modified current command based on the uncompensated current command and/or the closed-loop current command. The modified current command may differ from the closed-loop current command when an operator input is within a predetermined control input range and may be equal to the closed-Loop current command when the operator input is outside the predetermined control input range.
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12.发明申请公开(公告)号：US20090229456A1
公开(公告)日：2009-09-17
申请号：US11922657
申请日：2006-12-12
Applicant: Thomas Kunze , Wilfried Eichner
Inventor： Thomas Kunze , Wilfried Eichner
IPC: F01B25/00
CPC classification number: F04B51/00 , F04B1/34 , F04B2201/0802 , F04B2201/12051 , F04B2205/05 , F04C2270/80
Abstract: The invention relates to a device (1) for state monitoring in hydrostatic displacement units (2), in particular in axial piston machines (3) operated as a pump or as a motor. The device (1) comprises an acquisition unit (4) with a multiplicity of sensors (5) which are attached to the hydrostatic displacement unit (2) and serve to acquire monitoring data (6) and operating data (7), and an evaluating unit (8) which has a device (9) for analysing the monitoring data in the frequency range and a device (10) for analysing the monitoring data in the time range. A diagnostic unit (11) with an output unit (13) is connected to the evaluating unit (8).
Abstract translation: 本发明涉及一种用于静液压位移单元（2）中状态监测的装置（1），特别是在作为泵或马达操作的轴向活塞机（3）中。 装置（1）包括具有多个传感器（5）的采集单元（4），所述多个传感器（5）附接到静液压位移单元（2）并且用于获取监视数据（6）和操作数据（7） 单元（8），其具有用于分析频率范围内的监视数据的设备（9）和用于在时间范围内分析监视数据的设备（10）。 具有输出单元（13）的诊断单元（11）连接到评估单元（8）。
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公开(公告)号：US20080181793A1
公开(公告)日：2008-07-31
申请号：US11669584
申请日：2007-01-31
Applicant: Sanjay Ishvarlal Mistry , Christopher Paul Masini , Steven Henry Gluck
Inventor： Sanjay Ishvarlal Mistry , Christopher Paul Masini , Steven Henry Gluck
CPC classification number: F04B1/324 , F04B1/22 , F04B2201/12051
Abstract: A variable displacement pump including a first sensor configured to measure a position of the variable displacement pump. The first sensor may be a rotary angle sensor that is mounted to the yoke shaft of the variable displacement pump. A controller is configured to receive position data from the first sensor and control a single or dual stage hydraulic control valve thereby adjusting the output of the first variable displacement pump.
Abstract translation: 一种可变排量泵，包括构造成测量可变排量泵的位置的第一传感器。 第一传感器可以是安装在可变排量泵的轭轴上的旋转角传感器。 控制器被配置为从第一传感器接收位置数据并且控制单级或双级液压控制阀，由此调节第一可变排量泵的输出。
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公开(公告)号：US07275474B2
公开(公告)日：2007-10-02
申请号：US11440636
申请日：2006-05-25
Applicant: Bruce D. Larkin , Joseph A. Kovach , Matthew H. Simon , Eric B. Chapman , Dan T. Nguyen
Inventor： Bruce D. Larkin , Joseph A. Kovach , Matthew H. Simon , Eric B. Chapman , Dan T. Nguyen
CPC classification number: F04B1/2014 , F04B2201/12051 , G01D5/34776
Abstract: In a variable displacement type hydraulic pump/motor assembly including at least one internally movable component, such as a yoke, a swashplate, and the means for moving the swashplate, the improvement includes imparting on this component absolute location indicia markings and the addition of an optical/electronic sensor unit capable of reading such indicia markings fixedly located on a housing of the pump/motor assembly and including an optical read head extending into the housing interior and located at a spaced distance from the indicia markings for reading same, relative to a reference location, and producing a signal indicative of the absolute position of the movable component. The signal can then, in turn, be used for controlling the displacement of the pump/motor assembly. A method for determining the absolute component position is also set forth.
Abstract translation: 在包括至少一个内部可移动部件（例如轭架，斜盘）和用于移动斜盘的装置的可变排量型液压泵/电动机组件中，改进包括赋予该部件绝对位置标记标记和添加 光学/电子传感器单元，其能够读取固定地位于泵/马达组件的壳体上的标记标记，并且包括延伸到壳体内部并位于与标记标记间隔开的位置处的光学读取头，用于相对于 并产生指示可移动部件的绝对位置的信号。 然后，信号又可以用于控制泵/马达组件的位移。 还阐述了确定绝对分量位置的方法。
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公开(公告)号：US07086225B2
公开(公告)日：2006-08-08
申请号：US10776768
申请日：2004-02-11
Applicant: George Kadlicko
Inventor： George Kadlicko
IPC: F04B49/00
CPC classification number: F16D31/02 , F04B1/324 , F04B49/002 , F04B49/08 , F04B2201/0805 , F04B2201/1201 , F04B2201/12051 , Y10S92/02
Abstract: A variable capacity hydraulic machine has a rotating group located within a casing and a control housing secured to the casing to extend across and seal an opening in the casing. The control housing accommodates a control circuit and a pair of sensors to sense change in parameters associated with the rotating group. One of the sensors is positioned adjacent the barrel on the rotating group to sense rotational speed and the other senses displacement of the swashplate. The control housing accommodates a control valve and accumulator to supply fluid to the control valve.
Abstract translation: 可变容量液压机具有位于壳体内的旋转组和固定到壳体的控制壳体，以延伸跨过并密封壳体中的开口。 控制壳体容纳控制电路和一对传感器以感测与旋转组相关联的参数的变化。 传感器中的一个定位在旋转组上的筒附近以感测旋转速度，而另一个感测旋转斜盘的位移。 控制壳体容纳控制阀和蓄能器以将流体供应到控制阀。
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Patent Agency Ranking
公开(公告)号：US06848888B2
公开(公告)日：2005-02-01
申请号：US10317210
申请日：2002-12-12
Applicant: Hongliu Du , Mark P. Vonderwell
Inventor： Hongliu Du , Mark P. Vonderwell
CPC classification number: F04B1/2014 , F04B51/00 , F04B2201/12051
Abstract: A sensor for a variable displacement pump is provided. The pump has a housing containing a swashplate that is adapted to rotate about an axis. The sensor includes a magnet connected to the swashplate to rotate with the swashplate. A semiconductor chip is disposed proximate the magnet and within the housing. A control is adapted to direct a current through the semiconductor chip and to determine the voltage across the semiconductor chip. The control is further adapted to determine the angle of the swashplate relative to the housing based on the determined voltage.
Abstract translation: 提供了一种用于可变排量泵的传感器。 泵具有容纳旋转斜盘的壳体，该斜盘适于围绕轴线旋转。 传感器包括连接到斜盘以与斜盘一起旋转的磁体。 半导体芯片靠近磁体设置在壳体内。 控制器适于引导电流通过半导体芯片并确定半导体芯片两端的电压。 该控制还适于基于所确定的电压来确定斜盘相对于壳体的角度。
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公开(公告)号：US20040115065A1
公开(公告)日：2004-06-17
申请号：US10317210
申请日：2002-12-12
Applicant: Caterpillar Inc.
Inventor： Hongliu Du , Mark P. Vonderwell
IPC: F04B049/00
CPC classification number: F04B1/2014 , F04B51/00 , F04B2201/12051
Abstract: A sensor for a variable displacement pump is provided. The pump has a housing containing a swashplate that is adapted to rotate about an axis. The sensor includes a magnet connected to the swashplate to rotate with the swashplate. A semiconductor chip is disposed proximate the magnet and within the housing. A control is adapted to direct a current through the semiconductor chip and to determine the voltage across the semiconductor chip. The control is further adapted to determine the angle of the swashplate relative to the housing based on the determined voltage.
Abstract translation: 提供了一种用于可变排量泵的传感器。 泵具有容纳旋转斜盘的壳体，该斜盘适于围绕轴线旋转。 传感器包括连接到斜盘以与斜盘一起旋转的磁体。 半导体芯片靠近磁体设置在壳体内。 控制器适于引导电流通过半导体芯片并确定半导体芯片两端的电压。 该控制还适于基于所确定的电压来确定斜盘相对于壳体的角度。
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公开(公告)号：US06592099B2
公开(公告)日：2003-07-15
申请号：US09793565
申请日：2001-02-27
Applicant: Yuichi Yamamoto , Tomohisa Kaneda
Inventor： Yuichi Yamamoto , Tomohisa Kaneda
IPC: F16K3102
CPC classification number: F15B21/041 , F01P7/044 , F01P2025/40 , F01P2025/52 , F01P2025/64 , F01P2031/00 , F04B49/065 , F04B2201/12051 , F04D27/004 , F15B20/008 , Y10T137/4245
Abstract: A relation between an instruction current value (is) to be given to a solenoid valve and its supply time range (t) is predetermined, and a silting prevention current instruction (is) is given to the solenoid valve according to the this relation. Then, silting can be prevented without fail even if a control current instruction is zero, and no fine vibration is caused in a hydraulic actuator when the control current instruction is being output.
Abstract translation: 预定给予电磁阀的指令电流值（is）与其供给时间范围（t）之间的关系，根据该关系向电磁阀提供防止粉尘的电流指令（is）。 然后，即使控制电流指令为零，也可以防止淤泥，并且在输出控制电流指令时在液压致动器中不会引起细微振动。
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公开(公告)号：US20010042849A1
公开(公告)日：2001-11-22
申请号：US09793565
申请日：2001-02-27
Inventor： Yuichi Yamamoto , Tomohisa Kaneda
IPC: F16K031/02
CPC classification number: F15B21/041 , F01P7/044 , F01P2025/40 , F01P2025/52 , F01P2025/64 , F01P2031/00 , F04B49/065 , F04B2201/12051 , F04D27/004 , F15B20/008 , Y10T137/4245
Abstract: A relation between an instruction current value (is) to be given to a solenoid valve and its supply time range (t) is predetermined, and a silting prevention current instruction (is) is given to the solenoid valve according to the this relation. Then, silting can be prevented without fail even if a control current instruction is zero, and no fine vibration is caused in a hydraulic actuator when the control current instruction is being output.
Abstract translation: 预定给予电磁阀的指令电流值（is）与其供给时间范围（t）之间的关系，根据该关系向电磁阀提供防止粉尘的电流指令（is）。 然后，即使控制电流指令为零，也可以防止淤泥，并且在输出控制电流指令时在液压致动器中不会引起细微振动。
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公开(公告)号：US6053707A
公开(公告)日：2000-04-25
申请号：US060352
申请日：1998-04-15
Applicant: Yoshiyasu Itsuji , Kouji Yotsumoto , Kenji Fujita
Inventor： Yoshiyasu Itsuji , Kouji Yotsumoto , Kenji Fujita
CPC classification number: F04B49/08 , B29C45/82 , F04B49/002 , F04B49/065 , F04B2201/12041 , F04B2201/12051 , F04B2205/07
Abstract: A control device is herein disclosed which comprises a drive piston 12p for changing the position of a slanting plate in a variable capacity pump 11, an electromagnetic proportional valve 13 for driving the drive piston, and a position detector 14 for detecting a position of the slanting plate. The control device performs a flow rate control of operating oil by controlling the electromagnetic proportional valve in accordance with a difference between a flow rate instruction value Fr for the operating oil and a position detection value from the position detector so as to change the position of the slanting plate. The control device further includes a pressure detector 18 for detecting a pressure of the operating oil supplied to an injection cylinder 10, and correcting means for correcting the flow rate instruction value on the basis of a pressure detection value from the pressure detector to output a corrected flow rate instruction value.
Abstract translation: 本文公开了一种控制装置，其包括用于改变可变容量泵11中的倾斜板的位置的驱动活塞12p，用于驱动驱动活塞的电磁比例阀13以及用于检测倾斜位置的位置检测器14 盘子。 控制装置通过根据工作油的流量指令值Fr和来自位置检测器的位置检测值之间的差来控制电磁比例阀来进行工作油的流量控制，以便改变位置 倾斜板 控制装置还包括用于检测供应到注射缸10的工作油的压力的压力检测器18，以及根据来自压力检测器的压力检测值来校正流量指令值的校正装置，以输出校正的 流量指令值。
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