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1.发明授权Hydraulic control system for improving pump response and dynamic matching of pump and valve 失效液压控制系统，用于提高泵响应和泵与阀的动态匹配公开(公告)号：US06446433B1
公开(公告)日：2002-09-10
申请号：US09661714
申请日：2000-09-14
IPC分类号： F16D3102
CPC分类号： F15B21/087 , F04B49/065 , F04B49/225 , F04B2205/16 , F04B2205/172 , F15B11/006 , F15B11/08 , F15B21/008 , F15B21/08 , F15B2211/20546 , F15B2211/30575 , F15B2211/327 , F15B2211/35 , F15B2211/6303 , F15B2211/6652 , F15B2211/6654 , F15B2211/853
摘要： A hydraulic control system having a pump for delivering fluid under pressure from a fluid reservoir, a hydraulic actuator selectively driven by the fluid, the system comprises a main flow control valve connected between the pump and the actuator for selectively providing the fluid to and from the actuator, and a control unit connected to the main flow control valve for controlling operation of the main flow control valve to control the rate of change of the area of the main flow control valve relative to the delivery of fluid from the pump, and the control unit connected to the pump to increase or decrease the actual pump command proportional to the inverse of the pump command.
摘要翻译： 一种具有用于在压力下从流体储存器输送流体的泵的液压控制系统，由流体选择性驱动的液压致动器，所述系统包括连接在泵和致动器之间的主流量控制阀，用于选择性地将流体提供到和 致动器和连接到主流量控制阀的控制单元，用于控制主流量控制阀的操作，以控制主流量控制阀相对于来自泵的流体输送的面积的变化率，并且控制 连接到泵的单元增加或减少与泵命令的倒数成比例的实际泵命令。
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2.发明授权公开(公告)号：US06173572B1
公开(公告)日：2001-01-16
申请号：US09404013
申请日：1999-09-23
IPC分类号： F16D3102
CPC分类号： F15B21/087 , E02F9/2203 , E02F9/2228 , E02F9/2235 , E02F9/2296 , F15B11/165 , F15B21/045 , F15B2211/20546 , F15B2211/255 , F15B2211/3051 , F15B2211/30525 , F15B2211/31576 , F15B2211/327 , F15B2211/40515 , F15B2211/413 , F15B2211/41563 , F15B2211/426 , F15B2211/45 , F15B2211/50518 , F15B2211/5151 , F15B2211/6309 , F15B2211/6323 , F15B2211/633 , F15B2211/6343 , F15B2211/6346 , F15B2211/71
摘要： The present invention provides a method and apparatus for controlling the fluid flow in a fluid circuit 102. The fluid circuit 102 includes a pump 32 driven by an engine 106. The pump 32 delivers fluid to at least one actuator 44, 45 through a control valve assembly 120, 122. In addition, the pump is connected to a bypass control valve, which is connected to a fluid tank. The method includes the steps of establishing a desired fluid flow to be delivered by the pump, determining an expected fluid flow to be delivered by the pump in response to the desired fluid flow, and determining a position of the bypass control valve in response to the expected fluid flow.
摘要翻译： 本发明提供了一种用于控制流体回路102中的流体流动的方法和装置。流体回路102包括由发动机106驱动的泵32.泵32通过控制阀向至少一个致动器44,45输送流体 组件120,122。另外，泵连接到旁通控制阀，该旁路控制阀连接到流体箱。 该方法包括以下步骤：建立要由泵输送的期望的流体流，响应于期望的流体流量确定由泵输送的预期流体流量;以及响应于所述流体流动来确定旁路控制阀的位置 预期流体流动。
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公开(公告)号：US5878363A
公开(公告)日：1999-03-02
申请号：US684531
申请日：1996-07-19
申请人： Douglas W. Koehler
发明人： Douglas W. Koehler
IPC分类号： E02F9/20 , F15B11/16 , G05B11/36 , G05B19/414 , F15B13/16
CPC分类号： G05B19/414
摘要： A control system is typically used for controlling the implements of a machine. The control system includes a operator control section and a electronic control section having a module for sensing a pair of control signals from the operator control section. When a lift signal and a dump signal is sensed the module will modify the electronic control section in response to the sensed signals.
摘要翻译： 控制系统通常用于控制机器的工具。 控制系统包括操作员控制部分和具有用于感测来自操作者控制部分的一对控制信号的模块的电子控制部分。 当检测到提升信号和转储信号时，模块将响应于感测到的信号来修改电子控制部分。
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公开(公告)号：US07926267B2
公开(公告)日：2011-04-19
申请号：US12076613
申请日：2008-03-20
IPC分类号： F16D31/02
CPC分类号： F16H61/4148 , F16D31/02 , F16H61/421 , F16H61/431 , F16H61/462
摘要： A transmission for use with a machine is disclosed. The transmission may have a pump, a motor fluidly connected to receive pressurized fluid from the pump and propel the machine, and an operator input device configured to generate a signal indicative of an operator desired gear ratio of the transmission. The transmission may also have a controller in communication with the pump, the motor, and the operator input device. The controller may be configured to determine an desired gear ratio of the transmission as a function of the signal, and determine an efficiency loss of the transmission at the desired gear ratio. The controller may also be configured to select a known setting of at least one of the pump and motor that provides the desired gear ratio and accounts for the efficiency loss.
摘要翻译： 公开了一种用于机器的变速器。 变速器可以具有泵，流体连接以从泵接收加压流体并推进机器的马达以及被配置为产生指示变速器的操作者期望传动比的信号的操作者输入装置。 变速器还可以具有与泵，电动机和操作者输入装置通信的控制器。 控制器可以被配置为根据信号确定变速器的期望传动比，并且以期望的传动比确定变速器的效率损失。 控制器还可以被配置为选择提供所需传动比并考虑到效率损失的泵和马达中的至少一个的已知设定。
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5.发明授权公开(公告)号：US06609369B2
公开(公告)日：2003-08-26
申请号：US09997095
申请日：2001-11-28
IPC分类号： F15B903
CPC分类号： F15B21/087 , E02F9/2025 , E02F9/2203 , F15B11/05 , F15B2211/30525 , F15B2211/327 , F15B2211/6303 , F15B2211/6346 , F15B2211/665 , F15B2211/6654 , F15B2211/75
摘要： A pressure compensator for use in a control system for an electro hydraulic-implemented work element being operated through the use of operator input control mechanisms generating operator input signals upon the application thereof, the control system including an actuator coupled thereto for controlling the operation thereof, the pressure compensator determining a pressure compensator coefficient to be applied to an operator input signal to compensate for changes of pressure drop across a valve in communication with the actuator. The pressure compensator coefficient is used to produce an input flow control signal for inputting to the valve to control the amount of hydraulic fluid that flows therethrough to the actuator so that a desired velocity of the actuator is achieved.
摘要翻译： 一种压力补偿器，用于通过使用在其应用时产生操作者输入信号的操作者输入控制机构来操作的电液压实现的工作元件的控制系统，所述控制系统包括与其连接的用于控制其运行的致动器， 压力补偿器确定要施加到操作者输入信号的压力补偿器系数，以补偿与致动器连通的阀上的压降的变化。 压力补偿器系数用于产生用于输入到阀的输入流量控制信号，以控制流过致动器的液压流体的量，从而实现致动器的期望速度。
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公开(公告)号：US06199378B1
公开(公告)日：2001-03-13
申请号：US09400683
申请日：1999-09-21
申请人： James A. Aardema , Thomas J. Hajek, Jr. , Douglas W. Koehler , Edward W. Mate , Vincent Triffaux
发明人： James A. Aardema , Thomas J. Hajek, Jr. , Douglas W. Koehler , Edward W. Mate , Vincent Triffaux
IPC分类号： F16D3102
CPC分类号： F15B13/0405 , F15B11/006 , F15B11/028 , F15B2211/20546 , F15B2211/30575 , F15B2211/3111 , F15B2211/3144 , F15B2211/31576 , F15B2211/327 , F15B2211/45 , F15B2211/50518 , F15B2211/513 , F15B2211/5151 , F15B2211/526 , F15B2211/55 , F15B2211/6309 , F15B2211/6313 , F15B2211/6346 , F15B2211/6652 , F15B2211/6653
摘要： A control arrangement operates in conjunction with a control scheme to control the maximum pressure level within a conduit network of a fluid system without the need to have high flow pressure relief valves. The control arrangement provides a low flow pressure relief valve connected in parallel with an electrically actuated valve mechanism to trim any over-pressure conditions so that the control scheme has more time to move the electrically actuated valve mechanism to a flow bypassing, pressure relieving position.
摘要翻译： 控制装置结合控制方案进行操作，以控制流体系统的管道网络内的最大压力水平，而不需要具有高流量压力释放阀。 该控制装置提供了一个与电动阀机构并联连接的低流量泄压阀，以便调整任何过压状态，使得控制方案具有更多的时间将电致动的阀机构移动到流动旁路的减压位置。
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公开(公告)号：US20100154730A1
公开(公告)日：2010-06-24
申请号：US12341331
申请日：2008-12-22
IPC分类号： F01P7/00
CPC分类号： F01P7/167 , F01P2025/62 , F01P2025/64
摘要： A coolant flow control system includes a fluid cooling device, a coolant bypass circuit, and a controller. The controller is configured to generate a control signal indicative of a desired flow of coolant through the coolant bypass circuit as a function of the projected rate of change in the cooling device temperature gradient.
摘要翻译： 冷却剂流量控制系统包括流体冷却装置，冷却剂旁通回路和控制器。 控制器被配置为根据冷却装置温度梯度的预计变化率来生成指示冷却剂通过冷却剂旁通回路的期望流量的控制信号。
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公开(公告)号：US06357276B1
公开(公告)日：2002-03-19
申请号：US09378455
申请日：1999-08-20
IPC分类号： F61D3100
CPC分类号： F15B19/002 , F15B11/006 , F15B2211/20538 , F15B2211/30575 , F15B2211/3111 , F15B2211/3144 , F15B2211/327 , F15B2211/35 , F15B2211/5059 , F15B2211/5159 , F15B2211/6346 , F15B2211/6654 , F15B2211/765
摘要： A system for controlling an independent metering valve having a pair of independently controlled electrohydraulic displacement controlled spool valves for controlling pump-to-cylinder communication between an inlet port and a pair of control ports and another pair of independently controlled electrohydraulic displacement controlled spool valves for controlling cylinder-to-tank fluid flow between the control ports and an outlet port. The spool valves of the independent metering valve are calibrated to provide the required fluid flow.
摘要翻译： 一种用于控制独立计量阀的系统，具有一对独立控制的电液位移控制滑阀，用于控制入口端口和一对控制端口之间的泵与缸之间的连通，以及另一对独立控制的电液位移控制滑阀，用于控制 控制端口和出口之间的气缸对罐体流体流动。 校准独立计量阀的滑阀以提供所需的流体流量。
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公开(公告)号：US5960695A
公开(公告)日：1999-10-05
申请号：US845337
申请日：1997-04-25
CPC分类号： F15B21/082 , F15B11/006 , F15B11/02 , F15B21/085 , F15B21/087 , F15B2211/30575 , F15B2211/3111 , F15B2211/3144 , F15B2211/327 , F15B2211/50572 , F15B2211/5059 , F15B2211/5159 , F15B2211/6346 , F15B2211/6654 , F15B2211/75 , Y10T137/0318 , Y10T137/87217
摘要： A system and method for controlling an independent metering valve operating in a hydraulic circuit determines a displacement command for one or more metering valves to provide desired flows through the metering valves and desired pressure drops across the metering valves. The system determines the displacement command based on a mode of operation of the hydraulic circuit and a velocity for a hydraulic device controlled by the hydraulic circuit. The system determines the displacement command further based on an amount of flow available to the hydraulic circuit. The system allows the hydraulic circuit to be electronically controlled thereby providing flexibility not found in conventional hydraulic control systems.
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公开(公告)号：US20110072809A1
公开(公告)日：2011-03-31
申请号：US12874243
申请日：2010-09-02
CPC分类号： F15B11/16 , E02F9/2235 , E02F9/2296 , F15B21/08 , F15B2211/20546 , F15B2211/3053 , F15B2211/30575 , F15B2211/3144 , F15B2211/50518 , F15B2211/6309 , F15B2211/6313
摘要： A hydraulic system is disclosed having at least two hydraulic circuits. The disclosed system apportions flow between the two hydraulic circuits based on an assumed flow rate that is held constant in both power-limited and non-power-limited conditions.
摘要翻译： 公开了具有至少两个液压回路的液压系统。 所公开的系统分配在两个液压回路之间基于在功率受限和非功率受限条件下保持恒定的假定流量流动。
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