System for estimating a sensor output
    4.
    发明授权
    System for estimating a sensor output 有权
    用于估计传感器输出的系统

    公开(公告)号:US09534616B2

    公开(公告)日:2017-01-03

    申请号:US14599220

    申请日:2015-01-16

    申请人: Caterpillar Inc.

    IPC分类号: G01N3/00 F15B19/00 E02F9/22

    摘要: A system for determining an estimated output from a variable displacement hydraulic pump includes a prime mover, a torque sensor, a pressure sensor, and a displacement sensor. A controller is configured to determine the output torque from the prime mover, determine an input torque to the variable displacement hydraulic pump based upon the output torque, determine an output from one of the pressure sensor and the displacement sensor based upon the signals. The controller is further configured to determine a failure of another of the pressure sensor and the displacement sensor and determine an estimated output from the another of the pressure sensor and the displacement sensor based upon the input torque to the variable displacement hydraulic pump and the output from the one of the pressure sensor and the displacement sensor.

    摘要翻译: 用于确定来自可变排量液压泵的估计输出的系统包括原动机,扭矩传感器,压力传感器和位移传感器。 控制器被配置为确定来自原动机的输出扭矩,基于输出扭矩确定到可变排量液压泵的输入扭矩,基于该信号确定压力传感器和位移传感器之一的输出。 所述控制器还被配置成确定所述压力传感器和所述位移传感器中的另一个的故障,并基于所述可变排量液压泵的输入扭矩确定来自所述压力传感器和所述位移传感器中的另一个的估计输出, 压力传感器和位移传感器之一。

    Multifunctional Hydraulic Drive Unit
    6.
    发明申请
    Multifunctional Hydraulic Drive Unit 审中-公开
    多功能液压驱动单元

    公开(公告)号:US20150316919A1

    公开(公告)日:2015-11-05

    申请号:US14621379

    申请日:2015-02-12

    发明人: Holger JUNKERS

    IPC分类号: G05B19/18 G05B15/02

    摘要: The present invention describes a multi-functional hydraulic assembly for driving hydraulic fools with the aim of fulfilling as many requirements as possible for a variety of system applications. This is realized, firstly, by a high-performance cooling and filtering concept, secondly, by modular cascadability of the motor and the electronics, or also the option to be able to attach any number of auxiliary reservoirs via suction lines or communicating systems. To meet the requirements of the industry in terms of data management, access and currentness, it is possible to control and to update the assembly and to bidirectionally exchange data via external central servers or via a cloud. Program data and/or process data and/or system data of the hydraulic assembly is by means of an online portal as a cloud service stored and analyzed for process evaluation and provided to an authorized group of individuals for download or via a web browser. A further cloud service informs the user and clients in automated form when maintenance of the assembly or the system is pending or necessary. Moreover, it is possible via the cloud to integrate all employed system accessories for the inclusion of maintenance intervals, thus creating a flexible overall system and ensuring the multifunctional use of the hydraulic assembly in the system network.

    摘要翻译: 本发明描述了一种用于驱动液压笨蛋的多功能液压组件,目的是为各种系统应用满足尽可能多的要求。 首先,通过高性能冷却和过滤概念实现,其次,通过电机和电子设备的模块级联,或者也可以通过抽吸管线或通信系统连接任何数量的辅助储存器。 为了满足业界在数据管理,访问和流量方面的要求,可以控制和更新组件,并通过外部中央服务器或通过云双向交换数据。 液压组件的程序数据和/或过程数据和/或系统数据通过在线门户作为云服务被存储和分析用于过程评估,并被提供给授权的个人组以供下载或通过网络浏览器。 当维护组件或系统正在等待或需要时,进一步的云服务会以自动的形式通知用户和客户端。 此外,通过云可以整合所有使用的系统附件以包括维护间隔,从而创建灵活的整体系统,并确保系统网络中液压组件的多功能使用。

    HYDRAULIC DEVICES AND METHODS OF ACTUATING SAME
    7.
    发明申请
    HYDRAULIC DEVICES AND METHODS OF ACTUATING SAME 有权
    液压装置及其动作方法

    公开(公告)号:US20150096435A1

    公开(公告)日:2015-04-09

    申请号:US14506421

    申请日:2014-10-03

    IPC分类号: F15B15/14 F15B15/17

    摘要: This disclosure includes hydraulic apparatuses and methods for redundant actuation of a hydraulic device. Some apparatuses include a hydraulic device having a first hydraulic actuator and a second hydraulic actuator, wherein each of the first and second hydraulic actuators comprises at least a first hydraulic cavity, a second hydraulic cavity, and a piston. Some apparatuses also include a controller coupled to the hydraulic device. In some embodiments, the controller is configured to receive hydraulic fluid from a fluid source via at least two parallel hydraulic lines coupled to the controller, select a first hydraulic line of the at least two parallel hydraulic lines, and transfer the hydraulic fluid from the selected first hydraulic line to a first cavity of the first hydraulic actuator to apply pressure to a first piston to actuate the hydraulic device.

    摘要翻译: 本公开包括用于液压装置的冗余致动的液压装置和方法。 一些装置包括具有第一液压致动器和第二液压致动器的液压装置,其中第一和第二液压致动器中的每一个至少包括第一液压腔,第二液压腔和活塞。 一些装置还包括耦合到液压装置的控制器。 在一些实施例中,控制器被配置成经由耦合到控制器的至少两个平行的液压管线从流体源接收液压流体,选择至少两个平行的液压管路的第一液压管线,并且从所选的 第一液压管路连接到第一液压致动器的第一腔体,以向第一活塞施加压力以致动液压装置。

    DYNAMIC SEAL WEAR MITIGATION SYSTEM
    10.
    发明申请
    DYNAMIC SEAL WEAR MITIGATION SYSTEM 有权
    动态密封式减震系统

    公开(公告)号:US20140034133A1

    公开(公告)日:2014-02-06

    申请号:US13832085

    申请日:2013-03-15

    申请人: CATERPILLAR INC.

    摘要: A system can include one or more valve arrangements with a working chamber to receive a working fluid at a first pressure, and a control chamber to receive fluid at a second pressure. A dynamic seal can be disposed on a land of a valve element. A supply passage can be in communication between the control chamber and a tank and can include a check valve. A relief valve can be disposed between the check valve and the control chamber. A pilot pump and another relief valve may be disposed upstream of the check valve. The relief valve downstream of the check valve can have a higher pressure limit than the downstream one. A pressure sensor may be disposed between the check valve and the control chamber and used to warn the operator of a high pressure in the control chamber.

    摘要翻译: 系统可以包括具有工作室的一个或多个阀装置,以在第一压力下接收工作流体,以及控制室,以在第二压力下接收流体。 可以在阀元件的台面上设置动态密封件。 供应通道可以在控制室和罐之间连通,并且可以包括止回阀。 安全阀可以设置在止回阀和控制室之间。 先导泵和另一安全阀可以设置在止回阀的上游。 止回阀下游的安全阀可以具有比下游更高的压力极限。 压力传感器可以设置在止回阀和控制室之间,并且用于警告操作者控制室中的高压。