公开(公告)号：US09303387B2

公开(公告)日：2016-04-05

申请号：US13666260

申请日：2012-11-01

申请人： HUSCO International, Inc.

发明人： Joseph L. Pfaff ,  Corey K. Quinnell

IPC分类号： F16D31/02 ,  E02F3/96 ,  E02F9/22 ,  F15B11/042

CPC分类号： E02F3/964 ,  E02F9/2228 ,  E02F9/2235 ,  E02F9/2296 ,  F15B11/0423 ,  F15B2211/20546 ,  F15B2211/40515 ,  F15B2211/413 ,  F15B2211/41509 ,  F15B2211/426 ,  F15B2211/50536 ,  F15B2211/526 ,  F15B2211/605 ,  F15B2211/6346 ,  F15B2211/6653 ,  F15B2211/6654 ,  F15B2211/781

摘要： A hydraulic system has a pump that furnishes pressurized fluid to a supply node connected to a plurality of functions. Each function includes hydraulic actuator and a control valve assembly through which fluid flows both from the supply node to the hydraulic actuator and from the hydraulic actuator to a return line. A control method involves receiving a plurality of commands, each designating desired operation of a function. Each command is separately used to derive a flow value designating an amount of flow for the respective function, a load value indicating a load magnitude related to the respective function, and a pressure value denoting a supply pressure for the respective function. Then, the control valve assembly for each given hydraulic function is operated in response to the flow and load values for that function and in response to the pressure value that is greatest among the plurality of functions.

摘要翻译： 液压系统具有将加压流体提供给连接到多个功能的供应节点的泵。 每个功能包括液压致动器和控制阀组件，液体流经液压致动器和液压致动器以及从液压致动器流向返回管路。 控制方法包括接收多个命令，每个命令指定功能的期望操作。 每个命令分别用于导出指定相应功能的流量的流量值，指示与各个功能相关的负载量的负载值以及表示相应功能的供给压力的压力值。 然后，用于每个给定液压功能的控制阀组件响应于该功能的流量和负载值以及响应于多个功能中最大的压力值来操作。

公开(公告)号：US20180252243A1

公开(公告)日：2018-09-06

申请号：US15912285

申请日：2018-03-05

申请人： HUSCO INTERNATIONAL, INC.

发明人： Joseph L. Pfaff ,  Benjamin D. Holter ,  Eric P. Hamkins

IPC分类号： F15B13/16 ,  F15B13/02 ,  E02F9/22

CPC分类号： F15B13/16 ,  E02F9/2203 ,  E02F9/2217 ,  E02F9/2228 ,  E02F9/2267 ,  E02F9/2292 ,  E02F9/2296 ,  F15B13/021 ,  F15B13/027 ,  F15B21/082 ,  F15B2201/00 ,  F15B2211/205 ,  F15B2211/20538 ,  F15B2211/20546 ,  F15B2211/30515 ,  F15B2211/30565 ,  F15B2211/30575 ,  F15B2211/3058 ,  F15B2211/40592 ,  F15B2211/41536 ,  F15B2211/426 ,  F15B2211/50536 ,  F15B2211/6313 ,  F15B2211/6336 ,  F15B2211/6346 ,  F15B2211/6656 ,  F15B2211/6658

摘要： The present disclosure provides a control valve assembly arranged between a main control valve and a hydraulic function on a mobile machine. The control valve assembly includes a fluid source, a first supply valve, a first return valve, a second supply valve, and a second return valve. The control valve assembly further includes a controller configured to determine if an actual motion parameter of the hydraulic function is different than a desired motion parameter based on the determination of a motion sensor. The controller configured to selectively move at least one of the first supply valve, the first return valve, the second supply valve, and the second return valve to adjust the actual motion parameter of the hydraulic function and compensate for a difference between the actual motion parameter and the desired motion parameter.

公开(公告)号：US20140116038A1

公开(公告)日：2014-05-01

申请号：US13666260

申请日：2012-11-01

申请人： HUSCO INTERNATIONAL, INC.

发明人： Joseph L. Pfaff ,  Corey K. Quinnell

IPC分类号： F15B13/06

CPC分类号： E02F3/964 ,  E02F9/2228 ,  E02F9/2235 ,  E02F9/2296 ,  F15B11/0423 ,  F15B2211/20546 ,  F15B2211/40515 ,  F15B2211/413 ,  F15B2211/41509 ,  F15B2211/426 ,  F15B2211/50536 ,  F15B2211/526 ,  F15B2211/605 ,  F15B2211/6346 ,  F15B2211/6653 ,  F15B2211/6654 ,  F15B2211/781

摘要： A hydraulic system has a pump that furnishes pressurized fluid to a supply node connected to a plurality of functions. Each function includes hydraulic actuator and a control valve assembly through which fluid flows both from the supply node to the hydraulic actuator and from the hydraulic actuator to a return line. A control method involves receiving a plurality of commands, each designating desired operation of a function. Each command is separately used to derive a flow value designating an amount of flow for the respective function, a load value indicating a load magnitude related to the respective function, and a pressure value denoting a supply pressure for the respective function. Then, the control valve assembly for each given hydraulic function is operated in response to the flow and load values for that function and in response to the pressure value that is greatest among the plurality of functions.

摘要翻译： 液压系统具有将加压流体提供给连接到多个功能的供应节点的泵。 每个功能包括液压致动器和控制阀组件，液体流经液压致动器和液压致动器以及从液压致动器流向返回管路。 控制方法包括接收多个命令，每个命令指定功能的期望操作。 每个命令分别用于导出指定相应功能的流量的流量值，指示与各个功能相关的负载量的负载值以及表示相应功能的供给压力的压力值。 然后，用于每个给定液压功能的控制阀组件响应于该功能的流量和负载值以及响应于多个功能中最大的压力值来操作。