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公开(公告)号：US20090257891A1
公开(公告)日：2009-10-15
申请号：US12422893
申请日：2009-04-13
申请人： Duqiang Wu , G. Clark Fortune , Aaron H. Jagoda , John R. Kess , Thomas J. Stoltz , Paul Brenner , Benjamin Morris
发明人： Duqiang Wu , G. Clark Fortune , Aaron H. Jagoda , John R. Kess , Thomas J. Stoltz , Paul Brenner , Benjamin Morris
IPC分类号： F04B49/00
CPC分类号： F15B13/07 , F15B1/021 , F15B11/162 , F15B21/08 , F15B2211/20538 , F15B2211/405 , F15B2211/411 , F15B2211/427 , F15B2211/455 , F15B2211/625 , F15B2211/63 , F15B2211/6654 , F15B2211/7135 , F15B2211/781
摘要： An exemplary hydraulic system includes a first digital valve fluidly connectable to a first hydraulic load and a pump. The first valve is operable to fluidly connect the first hydraulic load to the pump. A second digital valve is fluidly connectable to a second hydraulic load and the pump. The second valve is operable to fluidly connect the second hydraulic load to the pump. The system includes a first sensor for detecting a pump discharge pressure and a second sensor for detecting an inlet pressure of the first hydraulic load. A controller is configured to determine a time delay based on the pump discharge pressure and the first hydraulic load inlet pressure and to send a control signal instructing the second valve to commence opening at a time substantially equal to the time delay after commencing closing the first valve.
摘要翻译： 示例性液压系统包括可流体连接到第一液压负载的第一数字阀和泵。 第一阀可操作以将第一液压负载流体连接到泵。 第二数字阀可流体地连接到第二液压负载和泵。 第二阀可操作以将第二液压负载流体连接到泵。 该系统包括用于检测泵排出压力的第一传感器和用于检测第一液压负载的入口压力的第二传感器。 控制器被配置为基于泵排出压力和第一液压负载入口压力来确定时间延迟，并且在开始关闭第一阀之后发送指示第二阀在基本上等于时间延迟的时间开始打开的控制信号 。
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2.发明申请公开(公告)号：US20090255246A1
公开(公告)日：2009-10-15
申请号：US12422911
申请日：2009-04-13
申请人： Duqiang Wu , G. Clark Fortune , Aaron H. Jagoda , John R. Kess , Thomas J. Stoltz , Paul Brenner , Benjamin Morris
发明人： Duqiang Wu , G. Clark Fortune , Aaron H. Jagoda , John R. Kess , Thomas J. Stoltz , Paul Brenner , Benjamin Morris
IPC分类号： F15B21/08
CPC分类号： F15B13/07 , F15B1/021 , F15B11/162 , F15B21/08 , F15B2211/20538 , F15B2211/405 , F15B2211/411 , F15B2211/427 , F15B2211/455 , F15B2211/625 , F15B2211/63 , F15B2211/6654 , F15B2211/7135 , F15B2211/781
摘要： An exemplary hydraulic system includes a digital valve operable to fluidly connect a hydraulic load to a pressure supply. A digital controller is operably connected to the digital valve. The digital controller stores a target value of a hydraulic system operating parameter and is configured to formulate a pulse width modulated control signal based on the target value. The digital controller transmits the control signal to the digital valve for controlling the operation of the valve.
摘要翻译： 示例性的液压系统包括可操作以将液压负载流体连接到压力源的数字阀。 数字控制器可操作地连接到数字阀。 数字控制器存储液压系统运行参数的目标值，并且被配置为基于目标值制定脉宽调制控制信号。 数字控制器将控制信号发送到数字阀，以控制阀的操作。
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公开(公告)号：US20090260352A1
公开(公告)日：2009-10-22
申请号：US12422899
申请日：2009-04-13
申请人： Duqiang Wu , G. Clark Fortune , Aaron H. Jagoda , John R. Kess , Thomas J. Stoltz , Paul Brenner , Benjamin Morris
发明人： Duqiang Wu , G. Clark Fortune , Aaron H. Jagoda , John R. Kess , Thomas J. Stoltz , Paul Brenner , Benjamin Morris
IPC分类号： F15B21/08
CPC分类号： F15B13/07 , F15B1/021 , F15B11/162 , F15B21/08 , F15B2211/20538 , F15B2211/405 , F15B2211/411 , F15B2211/427 , F15B2211/455 , F15B2211/625 , F15B2211/63 , F15B2211/6654 , F15B2211/7135 , F15B2211/781
摘要： An exemplary hydraulic system includes a digital valve operable to fluidly connect a hydraulic load to a pressure supply, and an orifice disposed in a flow path between the hydraulic load and the digital valve. A digital controller is operably connected to the digital valve. The digital controller stores a target pressure drop across the orifice and is configured to determine an actual pressure drop across the orifice and formulate a control signal based on the target pressure drop and the actual pressure drop. The controller transmits the control signal to the digital valve for controlling the operation of the valve.
摘要翻译： 示例性液压系统包括可操作以将液压负载流体连接到压力供应器的数字阀和设置在液压负载和数字阀之间的流动路径中的孔。 数字控制器可操作地连接到数字阀。 数字控制器存储穿过孔口的目标压降，并且被配置为确定穿过孔口的实际压降并基于目标压降和实际压降来制定控制信号。 控制器将控制信号发送到数字阀，以控制阀的操作。
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公开(公告)号：US08474364B2
公开(公告)日：2013-07-02
申请号：US12422881
申请日：2009-04-13
申请人： Duqiang Wu , G. Clark Fortune , Aaron H. Jagoda , John R. Kess , Thomas J. Stoltz , Paul Brenner , Benjamin Morris
发明人： Duqiang Wu , G. Clark Fortune , Aaron H. Jagoda , John R. Kess , Thomas J. Stoltz , Paul Brenner , Benjamin Morris
CPC分类号： F15B13/07 , F15B1/021 , F15B11/162 , F15B21/08 , F15B2211/20538 , F15B2211/405 , F15B2211/411 , F15B2211/427 , F15B2211/455 , F15B2211/625 , F15B2211/63 , F15B2211/6654 , F15B2211/7135 , F15B2211/781
摘要： An exemplary hydraulic system includes a plurality of digital valves, each valve fluidly connectable to a corresponding hydraulic load. The digitals valves are operable to fluidly connect the corresponding hydraulic load to a pressure source. The hydraulic system further includes a digital controller operably connected to the plurality of digital valves. The digital controller is configured to assign a priority level so that it is associated with each of a plurality of hydraulic loads, and to formulate a pulse width modulated control signal based on the assigned priority levels. The digital controller transmits the control signal to the plurality of digital valves for controlling the operation of the valves.
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公开(公告)号：US20090255245A1
公开(公告)日：2009-10-15
申请号：US12422881
申请日：2009-04-13
申请人： Duqiang Wu , G. Clark Fortune , Aaron H. Jagoda , John R. Kess , Thomas J. Stolz , Paul Brenner , Benjamin Morris
发明人： Duqiang Wu , G. Clark Fortune , Aaron H. Jagoda , John R. Kess , Thomas J. Stolz , Paul Brenner , Benjamin Morris
IPC分类号： F15B21/08
CPC分类号： F15B13/07 , F15B1/021 , F15B11/162 , F15B21/08 , F15B2211/20538 , F15B2211/405 , F15B2211/411 , F15B2211/427 , F15B2211/455 , F15B2211/625 , F15B2211/63 , F15B2211/6654 , F15B2211/7135 , F15B2211/781
摘要： An exemplary hydraulic system includes a plurality of digital valves, each valve fluidly connectable to a corresponding hydraulic load. The digitals valves are operable to fluidly connect the corresponding hydraulic load to a pressure source. The hydraulic system further includes a digital controller operably connected to the plurality of digital valves. The digital controller is configured to assign a priority level so that it is associated with each of a plurality of hydraulic loads, and to formulate a pulse width modulated control signal based on the assigned priority levels. The digital controller transmits the control signal to the plurality of digital valves for controlling the operation of the valves.
摘要翻译： 示例性的液压系统包括多个数字阀，每个阀可流体地连接到相应的液压负载。 数字阀可操作以将相应的液压负载流体连接到压力源。 液压系统还包括可操作地连接到多个数字阀的数字控制器。 数字控制器被配置为分配优先级，使得其与多个液压负载中的每一个相关联，并且基于所分配的优先级来制定脉宽调制控制信号。 数字控制器将控制信号发送到多个数字阀，以控制阀的操作。
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公开(公告)号：US08505291B2
公开(公告)日：2013-08-13
申请号：US12422899
申请日：2009-04-13
申请人： Duqiang Wu , G. Clark Fortune , Aaron H. Jagoda , John Ryan Kess , Thomas J. Stoltz , Paul Brenner , Benjamin Morris
发明人： Duqiang Wu , G. Clark Fortune , Aaron H. Jagoda , John Ryan Kess , Thomas J. Stoltz , Paul Brenner , Benjamin Morris
IPC分类号： F16D31/02 , F15B11/10 , F15B13/044
CPC分类号： F15B13/07 , F15B1/021 , F15B11/162 , F15B21/08 , F15B2211/20538 , F15B2211/405 , F15B2211/411 , F15B2211/427 , F15B2211/455 , F15B2211/625 , F15B2211/63 , F15B2211/6654 , F15B2211/7135 , F15B2211/781
摘要： An exemplary hydraulic system includes a digital valve operable to fluidly connect a hydraulic load to a pressure supply, and an orifice disposed in a flow path between the hydraulic load and the digital valve. A digital controller is operably connected to the digital valve. The digital controller stores a target pressure drop across the orifice and is configured to determine an actual pressure drop across the orifice and formulate a control signal based on the target pressure drop and the actual pressure drop. The controller transmits the control signal to the digital valve for controlling the operation of the valve.
摘要翻译： 示例性液压系统包括可操作以将液压负载流体连接到压力供应器的数字阀和设置在液压负载和数字阀之间的流动路径中的孔。 数字控制器可操作地连接到数字阀。 数字控制器存储穿过孔口的目标压降，并且被配置为确定穿过孔口的实际压降并基于目标压降和实际压降来制定控制信号。 控制器将控制信号发送到数字阀，以控制阀的操作。
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公开(公告)号：US08226370B2
公开(公告)日：2012-07-24
申请号：US12422893
申请日：2009-04-13
申请人： Duqiang Wu , G. Clark Fortune , Aaron H. Jagoda , John Ryan Kess , Thomas J. Stoltz , Paul Brenner , Benjamin Morris
发明人： Duqiang Wu , G. Clark Fortune , Aaron H. Jagoda , John Ryan Kess , Thomas J. Stoltz , Paul Brenner , Benjamin Morris
IPC分类号： F04B49/00
CPC分类号： F15B13/07 , F15B1/021 , F15B11/162 , F15B21/08 , F15B2211/20538 , F15B2211/405 , F15B2211/411 , F15B2211/427 , F15B2211/455 , F15B2211/625 , F15B2211/63 , F15B2211/6654 , F15B2211/7135 , F15B2211/781
摘要： An exemplary hydraulic system includes a first digital valve fluidly connectable to a first hydraulic load and a pump. The first valve is operable to fluidly connect the first hydraulic load to the pump. A second digital valve is fluidly connectable to a second hydraulic load and the pump. The second valve is operable to fluidly connect the second hydraulic load to the pump. The system includes a first sensor for detecting a pump discharge pressure and a second sensor for detecting an inlet pressure of the first hydraulic load. A controller is configured to determine a time delay based on the pump discharge pressure and the first hydraulic load inlet pressure and to send a control signal instructing the second valve to commence opening at a time substantially equal to the time delay after commencing closing the first valve.
摘要翻译： 示例性液压系统包括可流体连接到第一液压负载的第一数字阀和泵。 第一阀可操作以将第一液压负载流体连接到泵。 第二数字阀可流体地连接到第二液压负载和泵。 第二阀可操作以将第二液压负载流体连接到泵。 该系统包括用于检测泵排出压力的第一传感器和用于检测第一液压负载的入口压力的第二传感器。 控制器被配置为基于泵排出压力和第一液压负载入口压力来确定时间延迟，并且在开始关闭第一阀之后发送指示第二阀在基本上等于时间延迟的时间开始打开的控制信号 。
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8.发明授权公开(公告)号：US08434302B2
公开(公告)日：2013-05-07
申请号：US12422911
申请日：2009-04-13
申请人： Duqiang Wu , G. Clark Fortune , Aaron H. Jagoda , John Ryan Kess , Thomas J. Stoltz , Paul Brenner , Benjamin Morris
发明人： Duqiang Wu , G. Clark Fortune , Aaron H. Jagoda , John Ryan Kess , Thomas J. Stoltz , Paul Brenner , Benjamin Morris
IPC分类号： F16D31/02
CPC分类号： F15B13/07 , F15B1/021 , F15B11/162 , F15B21/08 , F15B2211/20538 , F15B2211/405 , F15B2211/411 , F15B2211/427 , F15B2211/455 , F15B2211/625 , F15B2211/63 , F15B2211/6654 , F15B2211/7135 , F15B2211/781
摘要： An exemplary hydraulic system includes a digital valve operable to fluidly connect a hydraulic load to a pressure supply. A digital controller is operably connected to the digital valve. The digital controller stores a target value of a hydraulic system operating parameter and is configured to formulate a pulse width modulated control signal based on the target value. The digital controller transmits the control signal to the digital valve for controlling the operation of the valve.
摘要翻译： 示例性的液压系统包括可操作以将液压负载流体连接到压力源的数字阀。 数字控制器可操作地连接到数字阀。 数字控制器存储液压系统运行参数的目标值，并且被配置为基于目标值制定脉宽调制控制信号。 数字控制器将控制信号发送到数字阀，以控制阀的操作。
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