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    HYDRAULIC CONTROL UNIT FOR A LIMITED SLIP DIFFERENTIAL
    53.
    发明申请
    HYDRAULIC CONTROL UNIT FOR A LIMITED SLIP DIFFERENTIAL 审中-公开
    液压控制单元有限滑差

    公开(公告)号：US20170045127A1

    公开(公告)日：2017-02-16

    申请号：US15290679

    申请日：2016-10-11

    Applicant: Eaton Corporation

    Inventor： Daniel P. Fisher ,  Andrew N. Edler ,  Scott M. Besemer ,  Jeffrey A. Oesch ,  Matthew G. Fox

    IPC: F16H48/32 ,  F15B21/00 ,  F15B1/027 ,  F15B11/10 ,  F16H57/025 ,  F16H57/037

    CPC classification number: F16H48/32 ,  F15B1/26 ,  F15B15/18 ,  F15B2201/21 ,  F15B2201/31 ,  F15B2201/51 ,  F16H57/025 ,  F16H57/037

    Abstract: A hydraulic control unit that delivers hydraulic fluid to a limited slip differential includes a hydraulic control unit housing, a sump and a motor. The hydraulic control unit housing has an accumulator housing portion that houses a biasing assembly and a piston. The sump is defined in the hydraulic control unit housing and at least partially occupies a common space with the accumulator housing portion. The motor is configured to pump fluid into an accumulator chamber of the accumulator housing portion. The fluid pumped into the accumulator housing portion at least partially collapses the biasing assembly and introduces a pre-charge into the hydraulic control unit. The biasing assembly is configured to expand and urge the piston in a first direction resulting in fluid being communicated from the hydraulic control unit and into the limited slip differential.

    Abstract translation: 将液压流体输送到限滑差速器的液压控制单元包括液压控制单元壳体，贮槽和马达。 液压控制单元壳体具有容纳偏置组件和活塞的蓄能器壳体部分。 贮槽被限定在液压控制单元壳体中，并且至少部分地与蓄能器壳体部分占据共同的空间。 电动机构造成将流体泵送到蓄能器壳体部分的蓄能室中。 泵送到蓄能器壳体部分中的流体至少部分地折叠偏压组件并且将预充电引入到液压控制单元中。 偏置组件构造成在第一方向上膨胀和推动活塞，导致流体从液压控制单元传递到限滑差速器。

    ACCUMULATOR RACKS
    54.
    发明申请
    ACCUMULATOR RACKS 审中-公开
    蓄能器架

    公开(公告)号：US20170037875A1

    公开(公告)日：2017-02-09

    申请号：US15330060

    申请日：2015-02-03

    Applicant: DANA ITALIA SPA

    Inventor： LORENZO SERRAO ,  GIULIO ORNELLA ,  ETTORE COSOLI

    IPC: F15B1/027 ,  B60K6/12 ,  F15B1/04

    CPC classification number: F15B1/027 ,  B60K6/12 ,  B60Y2400/10 ,  F15B1/024 ,  F15B1/033 ,  F15B1/04 ,  F15B1/08 ,  F15B2201/205 ,  F15B2201/405 ,  F15B2201/4155 ,  F15B2201/51 ,  F16H61/4096 ,  Y02E60/15

    Abstract: A method of charging a hydro-pneumatic energy storage system is described. The system has a first hydro-pneumatic accumulator with a first hollow vessel. Disposed within the first hollow vessel is a first compressible volume containing a first amount of gas. The system has a second hydro-pneumatic accumulator with a second hollow vessel. Disposed within the second hollow vessel is a second compressible volume containing a second amount of gas. The gas contained in the first volume is pre-pressurized to a first hydrostatic pre-charge pressure and the gas contained in the second volume is pre-pressurized to a second hydrostatic pre-charge pressure. The second pre-charge pressure is higher than the first pre-charge pressure. In addition, the gas in the first volume is pressurized by discharging a non-compressible hydraulic fluid into the first vessel while keeping a quantity of non-compressible hydraulic fluid contained in the second vessel constant to keep the pressure of the gas contained in the second volume at the second pre-charge pressure.

    Abstract translation: 描述了一种对液压气动能量存储系统进行充电的方法。 该系统具有带有第一中空容器的第一液压气动蓄能器。 设置在第一中空容器内的是包含第一量气体的第一可压缩体积。 该系统具有带有第二中空容器的第二液压气动蓄能器。 设置在第二中空容器内的是包含第二量气体的第二可压缩体积。 包含在第一体积中的气体被预加压到第一静水压预充压压力，并且包含在第二容积中的气体被预加压到第二静水压预充压力。 第二预充压力高于第一预充压压力。 此外，第一容积中的气体通过将不可压缩的液压流体排放到第一容器中而被加压，同时保持包含在第二容器中的一定量的不可压缩的液压流体保持恒定，以保持包含在第二容器中的气体的压力 体积在第二预充压力。

    System and method for estimating health and remaining useful life of a hydraulic element
    55.
    发明授权
    System and method for estimating health and remaining useful life of a hydraulic element 有权
    用于估计液压元件的健康和剩余使用寿命的系统和方法

    公开(公告)号：US09556887B2

    公开(公告)日：2017-01-31

    申请号：US14534611

    申请日：2014-11-06

    Applicant: Caterpillar Inc.

    Inventor： Richard Andrew Carpenter

    IPC: F15B19/00 ,  B60T17/22 ,  B60T13/66

    CPC classification number: F15B19/005 ,  B60T13/662 ,  B60T17/22 ,  F15B2201/51 ,  F15B2211/212 ,  F15B2211/6306 ,  F15B2211/857

    Abstract: A method for estimating health and remaining useful life of a hydraulic element of a machine is provided. The method includes determining a charge time of a hydraulic accumulator coupled to the hydraulic element in which a current pressure of a hydraulic fluid in the hydraulic accumulator reaches an upper threshold pressure, the current pressure being measured by a hydraulic accumulator pressure sensor coupled to the processor and the hydraulic accumulator. The method includes determining a discharging flow rate of the hydraulic element based upon the determined charge time of the hydraulic accumulator, a health indicator of the hydraulic element based upon a difference between the discharging flow rate and a stored discharging flow rate. The method includes determining a remaining useful life of the hydraulic element based upon the health indicator of the hydraulic element.

    Abstract translation: 提供了一种用于估计机器的液压元件的健康和剩余使用寿命的方法。 该方法包括确定耦合到液压元件的液压蓄能器的充电时间，其中液压蓄能器中的液压流体的当前压力达到上限阈值压力，当前压力由耦合到处理器的液压蓄能器压力传感器 和液压蓄能器。 该方法包括基于液压蓄能器的确定的充电时间，基于排出流量与存储的排出流量之间的差异来确定液压元件的健康指示器来确定液压元件的排出流量。 该方法包括基于液压元件的健康指示器确定液压元件的剩余使用寿命。

    ONLINE SENSOR CALIBRATION FOR ELECTROHYDRAULIC VALVES
    56.
    发明申请
    ONLINE SENSOR CALIBRATION FOR ELECTROHYDRAULIC VALVES 审中-公开
    电动阀门在线传感器校准

    公开(公告)号：US20170023349A1

    公开(公告)日：2017-01-26

    申请号：US15195450

    申请日：2016-06-28

    Applicant: Eaton Corporation

    Inventor： Michael Berne Rannow ,  Stephen D. Smith ,  Jason T. Kraft

    IPC: G01B7/14 ,  F15B19/00 ,  G01L27/00

    CPC classification number: G01B7/14 ,  E02F3/34 ,  E02F9/2267 ,  E02F9/264 ,  F15B1/027 ,  F15B1/26 ,  F15B11/16 ,  F15B19/002 ,  F15B2201/51 ,  F15B2211/25 ,  F15B2211/255 ,  F15B2211/455 ,  F15B2211/46 ,  F15B2211/6309 ,  F15B2211/6313 ,  F15B2211/634 ,  F15B2211/78 ,  F15B2211/8626 ,  F15B2211/8752 ,  G01L27/002 ,  G01L27/007

    Abstract: An online method for reconfiguring pressure and position sensors in a hydraulic system is disclosed. In one step, a sensor drift condition, a recalibration request, or an unisolated fault condition is detected. In another step, a system pressure sensor or another sensor, such as a load-sense pressure sensor, is verified as a trusted master reference sensor. Another step includes measuring and recording a first pressure reading at the master reference sensor and first voltage readings associated with first, second, third, and fourth pressure slave sensors at a first pump pressure set point. Another step includes, repeating the previous step at a second pump pressure set point. A new gain and offset for each of the first, second, third, and fourth pressure sensors can be calculated based on a comparison of the recoded first and second pressure readings and the recorded first and second voltage readings.

    Abstract translation: 公开了一种在液压系统中重新配置压力和位置传感器的在线方法。 在一个步骤中，检测到传感器漂移条件，重新校准请求或非隔离故障条件。 在另一步骤中，将系统压力传感器或诸如负载感测压力传感器的另一传感器验证为可信赖的主参考传感器。 另一步包括测量和记录主参考传感器处的第一压力读数和在第一泵压设定点处与第一，第二，第三和第四压力从属传感器相关联的第一电压读数。 另一个步骤包括在第二泵压力设定点重复上述步骤。 可以基于重新编码的第一和第二压力读数与记录的第一和第二电压读数的比较来计算第一，第二，第三和第四压力传感器中的每一个的新增益和偏移。

    PITCH TRIM ACTUATOR SERVICING MONITORING SYSTEM
    57.
    发明申请
    PITCH TRIM ACTUATOR SERVICING MONITORING SYSTEM 有权
    PITCH TRIM执行器维修监控系统

    公开(公告)号：US20160027225A1

    公开(公告)日：2016-01-28

    申请号：US14522105

    申请日：2014-10-23

    Applicant: GOODRICH CORPORATION

    Inventor： AMIR M. FAZELI ,  ADNAN CEPIC ,  SUSANNE M. REBER

    IPC: G07C5/08 ,  B64D45/00

    CPC classification number: G07C5/0808 ,  B64C25/60 ,  B64D45/00 ,  B64D2045/0085 ,  F15B1/24 ,  F15B19/005 ,  F15B20/005 ,  F15B2201/50 ,  F15B2201/51 ,  F15B2201/515 ,  F15B2211/625 ,  F15B2211/7054 ,  F15B2211/857

    Abstract: A method includes detecting at least one position measurement of a separator piston of a pitch trim actuator. The method includes detecting at least one pressure measurement of a gas. The method includes detecting at least one temperature measurement of the gas. The method includes storing at least one position value based on the at least one position measurement of the separator piston, at least one pressure value based on the at least one pressure measurement of the gas and at least one temperature value based on the at least one temperature measurement of the gas. The method includes determining a volume of an oil within an oil chamber of the pitch trim actuator and a pressure of the gas within the gas chamber of the pitch trim actuator, based on the at least one position value, the at least one pressure value and the at least one temperature value.

    Abstract translation: 一种方法包括检测间距调节致动器的分离器活塞的至少一个位置测量。 该方法包括检测气体的至少一个压力测量。 该方法包括检测气体的至少一个温度测量。 该方法包括基于分离器活塞的至少一个位置测量来存储至少一个位置值，基于气体的至少一个压力测量的至少一个压力值和至少一个温度值 气体的温度测量。 所述方法包括基于所述至少一个位置值，所述至少一个压力值和所述至少一个压力值来确定所述俯仰调节致动器的油室内的油的体积和所述俯仰调节致动器的气体室内的气体的压力，以及 所述至少一个温度值。

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