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    • 3. 发明申请
    • Method and apparatus for diagnosing leakage in a fluid power system
    • 用于诊断流体动力系统泄漏的方法和装置
    • US20050234660A1
    • 2005-10-20
    • US10826141
    • 2004-04-16
    • Sachin KambliJens EngelhardtChristian Boehm
    • Sachin KambliJens EngelhardtChristian Boehm
    • F15B19/00G01M3/26G06F19/00
    • F15B19/005
    • A method and apparatus of diagnosing leakage in a fluid power system including a fluid supply line operatively connected to a plurality of valves which are connected to a plurality of actuators. Flow signals generated by a flow sensor disposed in the supply line are processed to obtain fluid consumption over time values and signals used to change the state of the plurality of valves are processes to determine a plurality of episodes. Each of the plurality of episodes corresponds to a pressurization of a particular branch of a particular actuator. The flow signals and the signals used to change the state of the valves are combined to calculate a change in air consumption value for each valve change of state. The change in air consumption values for each episode are compared to a predetermined reference value to determine any deviation corresponding to a particular one of the plurality of episode. The one of the plurality of episodes and corresponding pressurized branch with the greatest deviation is identified. A signal is generated indicating both that a leak is present in the system and the branch responsible for the leak.
    • 一种在流体动力系统中诊断泄漏的方法和装置,包括可操作地连接到连接到多个致动器的多个阀的流体供给管线。 处理由设置在供应管线中的流量传感器产生的流量信号,以获得随时间的流体消耗量,并且用于改变多个阀的状态的信号是确定多个发作的过程。 多个情节中的每一个对应于特定致动器的特定分支的加压。 用于改变阀状态的流量信号和信号被组合以计算每个阀门状态改变的空气消耗值的变化。 将每个情节的空气消耗值的变化与预定的参考值进行比较,以确定与多个情节中的特定情节相对应的任何偏差。 识别多个发作中的一个和具有最大偏差的相应的加压分支。 产生一个信号,指示系统中存在泄漏和负责泄漏的分支。
    • 7. 发明授权
    • Method and apparatus for diagnosing leakage in a fluid power system
    • 用于诊断流体动力系统泄漏的方法和装置
    • US07031850B2
    • 2006-04-18
    • US10826141
    • 2004-04-16
    • Sachin KambliJens EngelhardtChristian Boehm
    • Sachin KambliJens EngelhardtChristian Boehm
    • G01F17/00G01F23/00G01L7/00G01N11/00G06F19/00
    • F15B19/005
    • A method and apparatus of diagnosing leakage in a fluid power system including a fluid supply line operatively connected to a plurality of valves which are connected to a plurality of actuators. Flow signals generated by a flow sensor disposed in the supply line are processed to obtain fluid consumption over time values and signals used to change the state of the plurality of valves are processes to determine a plurality of episodes. Each of the plurality of episodes corresponds to a pressurization of a particular branch of a particular actuator. The flow signals and the signals used to change the state of the valves are combined to calculate a change in air consumption value for each valve change of state. The change in air consumption values for each episode are compared to a predetermined reference value to determine any deviation corresponding to a particular one of the plurality of episode. The one of the plurality of episodes and corresponding pressurized branch with the greatest deviation is identified. A signal is generated indicating both that a leak is present in the system and the branch responsible for the leak.
    • 一种在流体动力系统中诊断泄漏的方法和装置,包括可操作地连接到连接到多个致动器的多个阀的流体供给管线。 处理由设置在供应管线中的流量传感器产生的流量信号,以获得随时间的流体消耗量,并且用于改变多个阀的状态的信号是确定多个发作的过程。 多个情节中的每一个对应于特定致动器的特定分支的加压。 用于改变阀状态的流量信号和信号被组合以计算每个阀门状态改变的空气消耗值的变化。 将每个情节的空气消耗值的变化与预定的参考值进行比较,以确定与多个情节中的特定情节相对应的任何偏差。 识别多个发作中的一个和具有最大偏差的相应的加压分支。 产生一个信号,指示系统中存在泄漏和负责泄漏的分支。