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公开(公告)号：US06691603B2
公开(公告)日：2004-02-17
申请号：US10029266
申请日：2001-12-28
IPC分类号： F15B1110
CPC分类号： F15B11/042 , E02F9/2025 , E02F9/2228 , F15B11/006 , F15B11/028 , F15B11/044 , F15B11/161 , F15B21/08 , F15B2211/30575 , F15B2211/327 , F15B2211/45 , F15B2211/5059 , F15B2211/6313 , F15B2211/6346 , F15B2211/6653
摘要： A method for controlling a hydraulic system may include receiving an input command from an input device, generating a desired working pressure value relating to a working chamber of an actuator based on the input command, and generating a desired pressure value relating to a non-working chamber of the actuator based on the input command. The method may also include operating a valve assembly to control a fluid flow condition of the working chamber and to control fluid flow from the non-working chamber.
摘要翻译： 用于控制液压系统的方法可以包括从输入装置接收输入命令，基于输入命令产生与致动器的工作室相关的期望的工作压力值，并产生与非工作相关的期望压力值 基于输入命令执行器的腔室。 该方法还可以包括操作阀组件以控制工作室的流体流动状态并且控制来自非工作室的流体流动。
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公开(公告)号：US20100050621A1
公开(公告)日：2010-03-04
申请号：US12230461
申请日：2008-08-29
申请人： Matthew J. Beschorner , Jason J. Podany , Aleksandar M. Egelja , Mikhail A. Sorokine , Benjamin Yoo , Manu Murthy
发明人： Matthew J. Beschorner , Jason J. Podany , Aleksandar M. Egelja , Mikhail A. Sorokine , Benjamin Yoo , Manu Murthy
IPC分类号： F16D33/00
CPC分类号： F04B49/02 , E02F9/2235 , E02F9/2267 , E02F9/2271 , E02F9/2292 , E02F9/2296 , F04B49/002 , F04B2203/0209 , F04B2205/10 , F04B2205/11 , F15B21/042 , F15B2211/411 , F15B2211/41563 , F15B2211/426 , F15B2211/45 , F15B2211/6343 , F15B2211/66 , F15B2211/665 , F15B2211/6651 , F15B2211/6652 , F15B2211/6654
摘要： A control system for a machine is disclosed. The control system may have a pump, a low pressure reservoir, and at least one actuator connected to receive fluid pressurized by the pump and discharge fluid to the low pressure reservoir. The control system may also have a bypass passage situated to allow fluid to bypass the at least one actuator, and a warmup valve disposed within the bypass passage and being movable between a flow-passing position and a flow-blocking position. The control system may further have a hydraulic temperature sensor configured to generate a signal indicative of a temperature of the fluid, and a controller in communication with the pump, the warmup valve, and the hydraulic temperature sensor. The controller may be configured to move the warmup valve to the flow-passing position, fix a displacement position of the pump, and adjust an input speed of the pump in response to the signal.
摘要翻译： 公开了一种用于机器的控制系统。 控制系统可以具有泵，低压储存器和连接以接收由泵加压的流体并将流体排放到低压储存器的至少一个致动器。 控制系统还可以具有旁路通道，其设置成允许流体绕过至少一个致动器，以及设置在旁路通道内并可在流动通过位置和阻流位置之间移动的暖机阀。 控制系统还可以具有液压温度传感器，该液压温度传感器被配置为产生指示流体温度的信号，以及与泵，暖机阀和液压温度传感器连通的控制器。 控制器可以被配置为将暖机阀移动到流通位置，固定泵的位移位置，并响应于该信号来调节泵的输入速度。
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公开(公告)号：US07260931B2
公开(公告)日：2007-08-28
申请号：US11287342
申请日：2005-11-28
CPC分类号： F16D31/02 , E02F9/2203 , E02F9/2228 , E02F9/226 , E02F9/2292 , F15B11/163 , F15B2211/20576 , F15B2211/6306 , F15B2211/6346 , F15B2211/665 , F15B2211/7053 , F15B2211/7058
摘要： A hydraulic control system for a work machine is disclosed. The hydraulic control system has a fluid actuator, a supply of pressurized fluid, and a control valve movable to selectively pass pressurized fluid to the fluid actuator. The hydraulic control system also has a sensor configured to sense the pressure of the pressurized fluid passed to the fluid actuator and a controller in communication with the control valve and the sensor. The controller is configured to receive an input indicative of a desired velocity of the fluid actuator and to determine a fluid flow rate corresponding to the desired velocity. The controller is also configured to determine a ratio of the sensed pressure to a stall pressure of the supply and to scale down the determined flow rate an amount based on the determined ratio. The controller is further configured to move the control valve an amount corresponding to the scaled down flow rate.
摘要翻译： 公开了一种用于作业机械的液压控制系统。 液压控制系统具有流体致动器，加压流体的供应和可移动以选择性地将加压流体传递到流体致动器的控制阀。 液压控制系统还具有传感器，其构造成感测传递到流体致动器的加压流体的压力和与控制阀和传感器连通的控制器。 控制器被配置为接收指示流体致动器的期望速度的输入并且确定对应于期望速度的流体流速。 控制器还被配置为确定感测到的压力与电源的失速压力的比率，并且基于所确定的比例来将确定的流量减小量。 控制器还被配置成使控制阀移动与缩小的流量对应的量。
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公开(公告)号：US20100122528A1
公开(公告)日：2010-05-20
申请号：US12292430
申请日：2008-11-19
CPC分类号： F15B11/024 , F15B21/14
摘要： A hydraulic system for a machine is disclosed. The hydraulic system may have a pump, a tank, a first actuator with a head-end and a rod-end, and a first valve arrangement configured to control fluid flow from the pump to the first actuator and from the first actuator to the tank. The hydraulic system may also have a second actuator with a head-end and a rod-end, and a second valve arrangement configured to control fluid flow from the pump to the second actuator and from the second actuator to the tank. The hydraulic system may further have a third valve arrangement fluidly connected between the first and second valve arrangements to receive pressurized fluid from the pump in parallel with the first and second valve arrangements. The third valve arrangement may be configured to facilitate fluid regeneration of and supplemental flow to at least one of the first and second actuators.
摘要翻译： 公开了一种用于机器的液压系统。 液压系统可以具有泵，罐，具有头端和杆端的第一致动器，以及配置成控制流体从泵到第一致动器的流动以及从第一致动器到罐的第一阀装置 。 液压系统还可以具有头端和杆端的第二致动器，以及构造成控制从泵到第二致动器的流体流动以及从第二致动器到罐的流体流动的第二阀装置。 液压系统还可以具有流体地连接在第一和第二阀装置之间的第三阀装置，以从第一和第二阀装置平行地接收来自泵的加压流体。 第三阀装置可以被配置为便于流体再生和向第一致动器和第二致动器中的至少一个致动器补充流量。
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公开(公告)号：US07201096B2
公开(公告)日：2007-04-10
申请号：US11144713
申请日：2005-06-06
IPC分类号： F15B13/044 , F15B13/043 , H01F7/08
CPC分类号： H01F7/1615 , H01F7/122 , H01F2007/1692 , H02K41/031 , H02P25/034 , Y10T137/86614
摘要： A linear motor is provided including a stator having at least one electromagnetic coil and a rotor having at least one permanent magnet. The rotor is movable toward at least a first position when least one electromagnetic coil is energized and solely magnetically biased to a neutral position when the at least one electromagnetic coil is de-energized.
摘要翻译： 提供一种线性电动机，其包括具有至少一个电磁线圈的定子和具有至少一个永磁体的转子。 当至少一个电磁线圈断电时，当至少一个电磁线圈通电时，转子可以朝着至少第一位置移动，并且仅在至少一个电磁线圈断电时被磁偏置到中性位置。
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公开(公告)号：US20090277243A1
公开(公告)日：2009-11-12
申请号：US12149992
申请日：2008-05-12
CPC分类号： G01F15/005 , F15B19/002 , F15B2211/30535 , F15B2211/30575 , F15B2211/31511 , F15B2211/327 , F15B2211/6309 , F15B2211/6313 , F15B2211/665 , F15B2211/6652 , F15B2211/6654 , F16K37/0083
摘要： A method of calibrating an electrically controlled hydraulic valve having a known relationship between flow rate through the valve and displacement of a valve element is disclosed. The method includes ascertaining a first current level for actuating the electrically controlled hydraulic valve to move the valve element to a position adjacent an inlet port, and a first displacement of the valve element responsive to the first current level. The method also includes ascertaining a second current level for actuating the electrically controlled hydraulic valve to move the valve element from the position adjacent the inlet port to a position permitting flow through the inlet port, and ascertaining a second displacement of the valve element responsive to the second current level. The method further includes establishing a relationship between current and displacement associated with the electrically controlled hydraulic valve.
摘要翻译： 公开了一种校准具有通过阀的流量和阀元件的位移之间已知关系的电控液压阀的方法。 该方法包括确定用于致动电控液压阀的第一电流水平以将阀元件移动到与入口相邻的位置，以及响应于第一电流水平的阀元件的第一位移。 该方法还包括确定用于致动电控液压阀的第二电流水平以使阀元件从邻近入口端口的位置移动到允许流过入口的位置，并且响应于该阀元件确定阀元件的第二位移 第二当前水平。 该方法还包括建立与电控液压阀相关联的电流和位移之间的关系。
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7.发明申请PROCESS FOR ELECTRO-HYDRAULIC CIRCUITS AND SYSTEMS INVOLVING EXCAVATOR BOOM-SWING POWER MANAGEMENT 有权电动液压电路及涉及挖掘机起动电源管理的系统公开(公告)号：US20090120083A1
公开(公告)日：2009-05-14
申请号：US11939028
申请日：2007-11-13
申请人： Randy N. Peterson , Todd Lawrence Baker , Michael Todd Verkuilen , Aleksandar M. Egelja , Tetsuya Yoshino
发明人： Randy N. Peterson , Todd Lawrence Baker , Michael Todd Verkuilen , Aleksandar M. Egelja , Tetsuya Yoshino
CPC分类号： F02D29/04 , E02F9/2228 , E02F9/2242 , E02F9/2292 , E02F9/2296 , F04B17/05 , F04B2203/0605 , F04B2207/044 , Y02P80/13
摘要： A method of controlling an electro-hydraulic system having an engine driving a variable displacement pump, a hydraulic valve and a hydraulic actuator in order to achieve more efficient engine operation is disclosed. The pressures in the electro-hydraulic system are monitored and commands are received indicating the desired movement of the hydraulic actuator. Based on the pressure and the commands, the operation being performed by the machine is determined and the engine is set to an efficient setting for the particular segment of machine operation.
摘要翻译： 公开了一种控制电动液压系统的方法，该电液系统具有驱动可变排量泵，液压阀和液压致动器的发动机，以实现更有效的发动机运转。 监测电液系统中的压力并接收指示液压致动器所需运动的命令。 基于压力和命令，确定由机器执行的操作，并且将引擎设置为机器操作的特定段的有效设置。
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公开(公告)号：US20120152368A1
公开(公告)日：2012-06-21
申请号：US12971149
申请日：2010-12-17
IPC分类号： F16K31/02
CPC分类号： F15B11/05 , F15B2211/20523 , F15B2211/30575 , F15B2211/40561 , F15B2211/5059 , F15B2211/7053 , Y10T137/0379 , Y10T137/7761
摘要： An independent metering valve (IMV) assembly is disclosed that includes a metering stem including an inlet. The IMV assembly also includes a hydro-mechanical control valve in communication with a fluid source and the inlet. The control valve also including a spool with a closed end and an open end. The control valve includes a biasing member that biases the control valve or spool towards an open position thereby establishing communication between the fluid source and the inlet. The control valve also including a load signal line providing communication between an outlet of the control valve upstream of the inlet and the closed end of the spool. Wherein high pressure in the load signal line allowing the control valve to move towards a closed position thereby overcoming bias of the biasing member and reducing flow to the inlet during a high pressure condition.
摘要翻译： 公开了一种独立计量阀（IMV）组件，其包括包括入口的计量阀杆。 IMV组件还包括与流体源和入口连通的水力机械控制阀。 控制阀还包括具有封闭端和开口端的线轴。 控制阀包括偏压构件，该偏置构件将控制阀或阀芯朝向打开位置偏置，从而建立流体源和入口之间的连通。 控制阀还包括负载信号线，其提供在入口上游的控制阀的出口与阀芯的封闭端之间的连通。 其中负载信号线中的高压允许控制阀朝向关闭位置移动，由此克服偏置构件的偏压并且在高压条件期间减少到入口的流量。
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公开(公告)号：US07194856B2
公开(公告)日：2007-03-27
申请号：US11139687
申请日：2005-05-31
CPC分类号： E02F9/2217 , E02F9/2207 , F15B1/021 , F15B1/033
摘要： A hydraulic control system for a work machine is disclosed. The hydraulic control system has a source of pressurized fluid and at least one actuator having a first and a second chamber. The hydraulic control system also has a first independent metering valve disposed between the source and the first chamber, and a second independent metering valve disposed between the reservoir and the second chamber. The first and second independent metering valves each have a valve element movable from a flow blocking to a flow passing position to facilitate movement of the at least one actuator. The hydraulic control system further has an accumulator and a third independent metering valve disposed in parallel with the first independent metering valve and between the accumulator and the first chamber. The third independent metering valve is configured to selectively communicate the accumulator with the first chamber to cushion movement of the at least one actuator.
摘要翻译： 公开了一种用于作业机械的液压控制系统。 液压控制系统具有加压流体源和具有第一和第二室的至少一个致动器。 液压控制系统还具有设置在源和第一室之间的第一独立计量阀和设置在储存器和第二室之间的第二独立计量阀。 第一和第二独立计量阀各自具有可从流动阻塞移动到流动通过位置的阀元件，以促进至少一个致动器的移动。 液压控制系统还具有与第一独立计量阀平行设置并且在蓄能器和第一室之间设置的蓄能器和第三独立计量阀。 第三独立计量阀构造成选择性地将蓄能器与第一室连通以缓冲至少一个致动器的运动。
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公开(公告)号：US08752371B2
公开(公告)日：2014-06-17
申请号：US12971149
申请日：2010-12-17
IPC分类号： F16D31/02 , F15B13/042
CPC分类号： F15B11/05 , F15B2211/20523 , F15B2211/30575 , F15B2211/40561 , F15B2211/5059 , F15B2211/7053 , Y10T137/0379 , Y10T137/7761
摘要： An independent metering valve (IMV) assembly is disclosed that includes a metering stem including an inlet. The IMV assembly also includes a hydro-mechanical control valve in communication with a fluid source and the inlet. The control valve also including a spool with a closed end and an open end. The control valve includes a biasing member that biases the control valve or spool towards an open position thereby establishing communication between the fluid source and the inlet. The control valve also including a load signal line providing communication between an outlet of the control valve upstream of the inlet and the closed end of the spool. Wherein high pressure in the load signal line allowing the control valve to move towards a closed position thereby overcoming bias of the biasing member and reducing flow to the inlet during a high pressure condition.
摘要翻译： 公开了一种独立计量阀（IMV）组件，其包括包括入口的计量阀杆。 IMV组件还包括与流体源和入口连通的水力机械控制阀。 控制阀还包括具有封闭端和开口端的线轴。 控制阀包括偏压构件，该偏置构件将控制阀或阀芯朝向打开位置偏置，从而建立流体源和入口之间的连通。 控制阀还包括负载信号线，其提供在入口上游的控制阀的出口与阀芯的封闭端之间的连通。 其中负载信号线中的高压允许控制阀朝着关闭位置移动，由此克服偏置构件的偏压并且在高压条件期间减少到入口的流量。
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