Electrohydraulic system with distributed control
    4.
    发明公开
    Electrohydraulic system with distributed control 失效
    电动液压系统

    公开(公告)号:EP0272397A2

    公开(公告)日:1988-06-29

    申请号:EP87115153.6

    申请日:1987-10-16

    IPC分类号: G05B19/403 G05B19/417

    摘要: An electrohydraulic system which includes a plurality of electrohydraulic devices (12, 14) individually controlled by microprocessor-based control electronics (12a, 14a). A central controller for coordinating operation among the various devices includes a host controller (18) for providing low speed serial and/or parallel output of control signals, and a master controller (20) having a low speed serial and parallel I/O port (40, 42) for connection to the host controller (18), and a high speed serial I/O port (44) connected by a full duplex bidirectional data bus (22) in common to all of the device controllers (12a, 14a).

    摘要翻译: 一种电动液压系统,其包括由基于微处理器的控制电子装置(12a,14a)分别控制的多个电动液压装置(12,14)。 用于协调各种设备之间的操作的中央控制器包括用于提供控制信号的低速串行和/或并行输出的主机控制器(18),以及具有低速串行和并行I / O端口的主控制器(20) 40,42),以及通过全双工双向数据总线(22)连接到所有设备控制器(12a,14a)的高速串行I / O端口(44) 。

    Electrohydraulic system with distributed control
    5.
    发明公开
    Electrohydraulic system with distributed control 失效
    电动液压系统。

    公开(公告)号:EP0240965A1

    公开(公告)日:1987-10-14

    申请号:EP87105043.1

    申请日:1987-04-04

    IPC分类号: G05B19/403 F15B9/03 G05D3/18

    摘要: An electrohydraulic system includes a plurality of electrohydraulic devices (22a-22n) individually controlled by on-board microprocessor-based control electronics (56, 58, 60). Each individual device controller (26) is connected to and addressable by a master controller (36) for coordinating operation of the various devices. An electrohydraulic servo valve assembly (34) includes a hydraulic manifold (42) having a valve spool (44) variably positionable therein under control of a torque motor (49). A microprocessor-based controller (56, 58, 60) is connected to the torque motor (49) and is mounted on the manifold (42) by a cover (40) which encloses and protects both the controller (26) and the torque motor (36). A watchdog timer (110) in the microprocessor-based controller (56, 58, 60) monitors pulsewidth modulated signals to the torque motor (49) for terminating operation in the event of signal loss. In a preferred embodiment of the invention, the servo valve assembly (34) is coupled to a linear actuator (24) which has its position monitored by an electroacoustic transducer (80). Improved electronics (56, 92) couple the transducer (80) to the control microprocessor (100).

    摘要翻译: 电动液压系统包括由基于微处理器的控制电子装置(56,​​58,60)单独控制的多个电动液压装置(22a-22n)。 每个单独的设备控制器(26)被主控制器(36)连接并可寻址,用于协调各种设备的操作。 电动液压伺服阀组件(34)包括液压歧管(42),该液压歧管具有在扭矩马达(49)的控制下可变地定位的阀芯(44)。 基于微处理器的控制器(56,58,60)连接到扭矩马达(49),并通过盖(40)安装在歧管(42)上,盖(40)封闭并保护控制器(26)和扭矩马达 (36)。 基于微处理器的控制器(56,58,60)中的看门狗定时器(110)监视到扭矩马达(49)的脉宽调制信号,以在信号丢失的情况下终止操作。 在本发明的优选实施例中,伺服阀组件(34)联接到线性致动器(24),该致动器的位置由电声换能器(80)监控。 改进的电子设备(56,92)将换能器(80)耦合到控制微处理器(100)。