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1. 发明申请

US20110126608A1 OUT-OF-RANGE SENSOR RECALIBRATION 有权
标题翻译：超范围传感器回读
公开(公告)号：US20110126608A1
公开(公告)日：2011-06-02
申请号：US12626970
申请日：2009-11-30
申请人： Wade L. Gehlhoff , Chris W. Schottler , Kishore Balasubramanian , Christian Fagerlund
发明人： Wade L. Gehlhoff , Chris W. Schottler , Kishore Balasubramanian , Christian Fagerlund
IPC分类号： G01L27/00
CPC分类号： F15B19/002 , F15B19/005
摘要： A method for resetting a calibration of a sensor operating out-of-range in a hydraulic actuation system is provided. The hydraulic actuation system includes a pump, a reservoir, a plurality of work-ports, a plurality of sensors, and a valve system, and a controller for regulating the hydraulic actuation system based on fluid flow demand and sensed pressures. The method includes detecting the sensor operating out-of-range, opening all work-ports to the reservoir, resetting all sensors to reservoir pressure, supplying all sensors with fluid at maximum pump pressure, and sensing the maximum pump pressure at each sensor. Additionally, the method includes determining an average pressure value across all sensors, assigning the determined average pressure value to the sensor that is operating out-of-range, and resetting the calibration of the sensor that is operating out-of-range based on the reservoir pressure and the average pressure values.
摘要翻译：提供了一种用于重置在液压致动系统中操作超出范围的传感器的校准的方法。液压致动系统包括泵，储存器，多个工作端口，多个传感器和阀门系统，以及用于基于流体流量需求和感测压力来调节液压致动系统的控制器。该方法包括检测超出范围的传感器，将所有工作端口打开到储存器，将所有传感器重新设置为储存器压力，为所有传感器提供最大泵压力下的流体，并感测每个传感器的最大泵压。此外，该方法包括确定跨所有传感器的平均压力值，将所确定的平均压力值分配给正在运行超出范围的传感器，以及基于所述传感器的超范围重新设定运行在超范围内的传感器的校准储层压力和平均压力值。

2. 发明授权

US07490626B2 Steer valve with hydraulic vehicle position feedback 有权
标题翻译：转向阀带液压车辆位置反馈
公开(公告)号：US07490626B2
公开(公告)日：2009-02-17
申请号：US11246408
申请日：2005-10-07
申请人： Wade L. Gehlhoff
发明人： Wade L. Gehlhoff
IPC分类号： B62D5/083 , B62D5/097
CPC分类号： B62D5/093 , B62D5/097 , Y10T137/86638 , Y10T137/86662
摘要： A fluid controller (17) controls a main fluid path (18) from a pump (11) to a primary steering cylinder (19) and a second fluid path (26) from a fluid meter (37) to a second cylinder (31). A mechanical or electrical linkage (149) couples the primary steering cylinder (19) to the second cylinder (31) such that displacement of the primary cylinder (19) results in proportional corresponding displacement of the second cylinder (31). The main fluid path (18) and the second fluid path (26) are maintained separate from each other. As such, the main fluid path (18) provides pressurized fluid from the pump to the primary steering cylinder (19) without communicating main fluid flow to the secondary cylinder (31). Due to the separate fluid paths, the present invention can be used to provide a substantial amount of fluid through a fluid controller (17) with a relatively small displacement fluid meter (37).
摘要翻译：流体控制器（17）控制从泵（11）到主转向缸（19）的主流体路径（18）和从流量计（37）到第二缸（31）的第二流体路径（26）。机械或电连杆（149）将主转向缸（19）连接到第二缸（31），使得主缸（19）的位移导致第二缸（31）的比例对应位移。主流体路径（18）和第二流体路径（26）彼此保持分开。这样，主流体路径（18）将加压流体从泵提供到主转向缸（19），而不使主流体流通到次级缸（31）。由于单独的流体路径，本发明可用于通过具有相对小的位移流体计（37）的流体控制器（17）提供大量的流体。

3. 发明授权

US08291925B2 Method for operating a hydraulic actuation power system experiencing pressure sensor faults 有权
标题翻译：用于操作经历压力传感器故障的液压致动动力系统的方法
公开(公告)号：US08291925B2
公开(公告)日：2012-10-23
申请号：US12577928
申请日：2009-10-13
申请人： Wade L. Gehlhoff , Chris W. Schottler
发明人： Wade L. Gehlhoff , Chris W. Schottler
IPC分类号： F16K31/06
CPC分类号： F15B20/002 , F15B2211/30575 , F15B2211/6306 , F15B2211/6309 , F15B2211/6313 , F15B2211/862 , F15B2211/8752 , Y10T137/0318 , Y10T137/0379 , Y10T137/2554 , Y10T137/7838 , Y10T137/87217
摘要： A method for operating a hydraulic actuation system during a pressure sensor malfunction is provided. The hydraulic actuation system includes a pump, a reservoir, a first work-port and a second work-port, a valve system with individual orifices, a pressure sensor system, and a controller for regulating the hydraulic actuation system based on fluid flow demand and on determined pressure differences. The method includes detecting a malfunction of a pressure sensor for the first work-port, closing second and third orifices, and regulating the pump to generate fluid flow corresponding to maximum pressure generated by the pump. The method also includes assigning a value for the difference between pump pressure and the pressure of the subject work-port that is equivalent to a value within an attainable range for difference between the two pressures. Furthermore, the method includes regulating a first orifice and a fourth orifice in response to the fluid flow demand.
摘要翻译：提供了一种在压力传感器故障期间操作液压致动系统的方法。液压致动系统包括泵，储存器，第一工作端口和第二工作端口，具有各个孔的阀系统，压力传感器系统和用于基于流体流动需求调节液压致动系统的控制器，以及在确定的压力差。该方法包括检测用于第一工作口的压力传感器的故障，关闭第二和第三孔，并且调节泵以产生对应于由泵产生的最大压力的流体流。该方法还包括分配泵压力和对象工作端口的压力之间的差值，该值等于在两个压力之间的差值的可达到的范围内的值。此外，该方法包括响应于流体流动需求来调节第一孔口和第四孔口。

4. 发明授权

US08286652B2 Configurable active jerk control 有权
标题翻译：可配置的活动混合控制
公开(公告)号：US08286652B2
公开(公告)日：2012-10-16
申请号：US12564069
申请日：2009-09-22
申请人： Wade L. Gehlhoff
发明人： Wade L. Gehlhoff
IPC分类号： F17D1/20
CPC分类号： E02F9/2207 , F15B21/008 , Y10T137/0379 , Y10T137/0396 , Y10T137/7759 , Y10T137/7762
摘要： A method of limiting jerk in a hydraulic system of a machine includes defining a maximum pressure rate. An output pressure of a hydraulic fluid is continuously measured over time from a work port of a hydraulic valve to determine an output pressure rate. The measured output pressure rate is compared to the maximum pressure rate. A requested flow rate is adjusted when the measured output pressure rate is greater than the maximum pressure rate to decrease the pressure differential generated in response to changing the flow rate of the hydraulic fluid through the valve, which thereby limits a change in acceleration or deceleration of the hydraulic system to limit felt jerk in the machine.
摘要翻译：在机器的液压系统中限制冲击的方法包括限定最大压力速率。从液压阀的工作端口连续地测量液压流体的输出压力，以确定输出压力。将测量的输出压力比与最大压力比进行比较。当测量的输出压力比大于最大压力比时，调节所要求的流量，以减小由于改变通过阀的液压流体的流量而产生的压力差，从而限制了加速或减速的变化液压系统限制机器中的毛刺抖动。

5. 发明授权

US07516757B2 Power beyond steering system 有权
标题翻译：超越转向系统的力量
公开(公告)号：US07516757B2
公开(公告)日：2009-04-14
申请号：US11394879
申请日：2006-03-31
申请人： Wade L. Gehlhoff
发明人： Wade L. Gehlhoff
IPC分类号： B62D1/22 , B62D5/097 , F15B11/16
CPC分类号： B62D5/093 , B62D1/22 , B62D5/097 , Y10T137/86654 , Y10T137/86662
摘要： A fluid controller (15a) in a multiple-input hydrostatic power steering system includes a check valve assembly (101), having a first fluid passage (111), defining a check valve seat (105) and a check valve (103) operably associated therewith, in fluid communication with a second fluid passage (109), with the second fluid passage (109) being in fluid communication with a return port (25a). In the left (L) and right (R) operating positions, return flow can flow from the interior region (114) of the valve (27), through the first fluid passage (111), past the check valve (103), and through the second fluid passage (109) to the return port (25a). In the neutral position (N), pressurized fluid can flow from an inlet port (19a) to the return port (25a), with the check valve (103) preventing fluid from flowing through the first fluid passage (111) and into the interior region (114) of the valve (27).
摘要翻译：多输入静液压动力转向系统中的流体控制器（15a）包括止回阀组件（101），其具有限定止回阀座（105）的第一流体通道（111）和可操作地相关联的止回阀（103）从而与第二流体通道（109）流体连通，第二流体通道（109）与返回端口（25a）流体连通。在左（L）和右（R）操作位置，回流可以从阀27的内部区域114通过第一流体通道111流过止回阀103，通过第二流体通道（109）返回到返回端口（25a）。在中立位置（N）中，加压流体可以从入口（19a）流到返回端口（25a），止回阀（103）防止流体流过第一流体通道（111）并进入内部阀门（27）的区域（114）。

6. 发明授权

US07124579B1 Anti jerk valve 有权
标题翻译：防潮阀
公开(公告)号：US07124579B1
公开(公告)日：2006-10-24
申请号：US11124933
申请日：2005-05-09
申请人： Wade L. Gehlhoff
发明人： Wade L. Gehlhoff
IPC分类号： F16D31/02
CPC分类号： B62D12/00 , B62D5/093 , F15B11/0445 , F15B2211/3051 , F15B2211/528 , F15B2211/55 , F15B2211/57 , F15B2211/7107 , F15B2211/7128 , F15B2211/853 , F15B2211/8613
摘要： A hydraulic control system including a source (11) of fluid having a pressure responsive means (15) and an actuator. A main control valve (21) has ports (27,29) communicating with the actuator ports by means of first (41) and second (43) conduits, and means to generate a load pressure (45). A pressure spike suppression valve (51) has ports connected across the conduits, the valve including a spool (65) moveable between a first position blocking communication between the ports, and a second position permitting communication. The valve (51) defines a spring chamber (67) including a spring (69) biasing the spool toward the first position. The valve defines a load signal passage (83) to communicate the load pressure to a chamber also to bias the spool toward the first position. The valve defines a pressure chamber (81) in communication with the source, fluid pressure therein biasing the spool toward the second position.
摘要翻译：一种液压控制系统，包括具有压力响应装置（15）和致动器的流体源（11）。主控制阀（21）具有通过第一（41）和第二（43）管道与致动器端口连通的端口（27,29），以及用于产生负载压力（45）的装置。压力尖峰抑制阀（51）具有连接在管道两端的端口，该阀包括可在阻挡端口之间的通信的第一位置和允许通信的第二位置之间移动的阀芯（65）。阀（51）限定弹簧室（67），弹簧室（67）包括弹簧（69），该弹簧将阀芯朝第一位置偏置。该阀限定了负载信号通道（83），以将负载压力传递到室，以将阀芯朝向第一位置偏置。阀限定与源相连通的压力室（81），其中的流体压力将阀芯朝向第二位置偏置。

7. 发明授权

US08166795B2 Out-of-range sensor recalibration 有权
标题翻译：超范围传感器重新校准
公开(公告)号：US08166795B2
公开(公告)日：2012-05-01
申请号：US12626970
申请日：2009-11-30
申请人： Wade L. Gehlhoff , Chris W. Schottler , Kishore Balasubramanian , Christian Fagerlund
发明人： Wade L. Gehlhoff , Chris W. Schottler , Kishore Balasubramanian , Christian Fagerlund
IPC分类号： G01L27/00
CPC分类号： F15B19/002 , F15B19/005
摘要： A method for resetting a calibration of a sensor operating out-of-range in a hydraulic actuation system is provided. The hydraulic actuation system includes a pump, a reservoir, a plurality of work-ports, a plurality of sensors, and a valve system, and a controller for regulating the hydraulic actuation system based on fluid flow demand and sensed pressures. The method includes detecting the sensor operating out-of-range, opening all work-ports to the reservoir, resetting all sensors to reservoir pressure, supplying all sensors with fluid at maximum pump pressure, and sensing the maximum pump pressure at each sensor. Additionally, the method includes determining an average pressure value across all sensors, assigning the determined average pressure value to the sensor that is operating out-of-range, and resetting the calibration of the sensor that is operating out-of-range based on the reservoir pressure and the average pressure values.
摘要翻译：提供了一种用于重置在液压致动系统中操作超出范围的传感器的校准的方法。液压致动系统包括泵，储存器，多个工作端口，多个传感器和阀门系统，以及用于基于流体流量需求和感测压力来调节液压致动系统的控制器。该方法包括检测超出范围的传感器，将所有工作端口打开到储存器，将所有传感器重新设置为储存器压力，为所有传感器提供最大泵压力下的流体，并感测每个传感器的最大泵压。此外，该方法包括确定跨所有传感器的平均压力值，将所确定的平均压力值分配给正在运行超出范围的传感器，以及基于所述传感器的超范围重新设定运行在超范围内的传感器的校准储层压力和平均压力值。

8. 发明授权

US06782698B2 Steering control unit with low null band load sensing boost 有权
公开(公告)号：US06782698B2
公开(公告)日：2004-08-31
申请号：US10255453
申请日：2002-09-26
申请人： Wade L. Gehlhoff
发明人： Wade L. Gehlhoff
IPC分类号： F16D3102
CPC分类号： B62D5/09
摘要： A fluid controller (21) of the static load signal type which includes controller valving (25), a fluid inlet port (27), a control fluid port (33), a fluid return port (37), and a load signal port (39). The controller includes valving (25) which defines a neutral position (N) and an operating position (R), and further defines a variable load sense drain orifice, having a maximum flow area when the valving is in the neutral position and a decreasing flow area as the valving is displaced toward the operating position. The valving defines a variable load sense boost orifice (91) communicating from the inlet port (27) to the load signal port (39), the boost orifice having a maximum flow area when the valving is in neutral, and a decreasing flow area as the valving is displaced toward the operating position. The load sense drain orifice (93) is sized, relative to the boost orifice (91) to generate a static load signal (19) having a predetermined relationship to a predetermined standby pressure of the source (11) of pressurized fluid.

9. 发明申请

US20120204549A1 CONDITIONAL LOAD SENSE CONTROL 审中-公开
标题翻译：条件负载感测控制
公开(公告)号：US20120204549A1
公开(公告)日：2012-08-16
申请号：US13370948
申请日：2012-02-10
申请人： Wade L. Gehlhoff
发明人： Wade L. Gehlhoff
IPC分类号： F15B13/00
CPC分类号： F15B20/007 , B66F9/22 , F15B2211/20546 , F15B2211/251 , F15B2211/6309 , F15B2211/6313 , F15B2211/6346 , F15B2211/665 , F15B2211/6652 , F15B2211/6653 , F15B2211/8755
摘要： A method of controlling a hydraulic circuit having a pump, a hydraulic actuator, and a control valve disposed between the pump and hydraulic actuator is disclosed. The method includes selectively placing the hydraulic circuit between a work mode and a work standby mode based upon the relationship between the hydraulic actuator hydraulic pressure and at least one maximum pressure limit value. The work mode includes moving the control valve to an open position such that the pump and hydraulic actuator are in fluid communication with each other and commanding the pump to generate an output pressure value that is greater than the measured hydraulic actuator hydraulic pressure. The work standby mode includes moving the control valve to a closed position such that the pump is isolated from the hydraulic actuator and commanding the pump to generate an output pressure value that is independent of the measured hydraulic actuator hydraulic pressure.
摘要翻译：公开了一种控制液压回路的方法，该液压回路具有设置在泵和液压致动器之间的泵，液压致动器和控制阀。该方法包括基于液压致动器液压与至少一个最大压力极限值之间的关系，将液压回路选择性地放置在工作模式和待机模式之间。工作模式包括将控制阀移动到打开位置，使得泵和液压致动器彼此流体连通并且命令泵产生大于所测量的液压致动器液压的输出压力值。工作待机模式包括将控制阀移动到关闭位置，使得泵与液压致动器隔离并且命令泵产生独立于所测量的液压致动器液压的输出压力值。

10. 发明申请

US20110083750A1 METHOD FOR OPERATING A HYDRAULIC ACTUATION POWER SYSTEM EXPERIENCING PRESSURE SENSOR FAULTS 有权
标题翻译：操作压力传感器故障的液压启动电源系统的方法
公开(公告)号：US20110083750A1
公开(公告)日：2011-04-14
申请号：US12577928
申请日：2009-10-13
申请人： Wade L. Gehlhoff , Chris W. Schottler
发明人： Wade L. Gehlhoff , Chris W. Schottler
IPC分类号： F15B13/00
CPC分类号： F15B20/002 , F15B2211/30575 , F15B2211/6306 , F15B2211/6309 , F15B2211/6313 , F15B2211/862 , F15B2211/8752 , Y10T137/0318 , Y10T137/0379 , Y10T137/2554 , Y10T137/7838 , Y10T137/87217
摘要： A method for operating a hydraulic actuation system during a pressure sensor malfunction is provided. The hydraulic actuation system includes a pump, a reservoir, a first work-port and a second work-port, a valve system with individual orifices, a pressure sensor system, and a controller for regulating the hydraulic actuation system based on fluid flow demand and on determined pressure differences. The method includes detecting a malfunction of a pressure sensor for the first work-port, closing second and third orifices, and regulating the pump to generate fluid flow corresponding to maximum pressure generated by the pump. The method also includes assigning a value for the difference between pump pressure and the pressure of the subject work-port that is equivalent to a value within an attainable range for difference between the two pressures. Furthermore, the method includes regulating a first orifice and a fourth orifice in response to the fluid flow demand.
摘要翻译：提供了一种在压力传感器故障期间操作液压致动系统的方法。液压致动系统包括泵，储存器，第一工作端口和第二工作端口，具有各个孔的阀系统，压力传感器系统和用于基于流体流动需求调节液压致动系统的控制器，以及在确定的压力差。该方法包括检测用于第一工作口的压力传感器的故障，关闭第二和第三孔，并且调节泵以产生对应于由泵产生的最大压力的流体流。该方法还包括分配泵压力和对象工作端口的压力之间的差值，该值等于在两个压力之间的差值的可达到的范围内的值。此外，该方法包括响应于流体流动需求调节第一孔口和第四孔口。

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