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1. 发明授权

US06874525B2 Linear solenoid valve control device 失效
标题翻译：线性电磁阀控制装置
公开(公告)号：US06874525B2
公开(公告)日：2005-04-05
申请号：US10912281
申请日：2004-08-06
申请人： Yusuke Kimura , Tatsuo Ochiai , Tateki Jozaki , Yoshinori Ishimori , Hideshi Wakayama
发明人： Yusuke Kimura , Tatsuo Ochiai , Tateki Jozaki , Yoshinori Ishimori , Hideshi Wakayama
IPC分类号： F16K31/06 , F16H9/00 , F16H61/00 , F16H61/02 , F16H61/12 , F16K51/00
CPC分类号： F16H61/0251 , Y10T137/4245 , Y10T137/4358
摘要： Disclosed is a control device for controlling a two-way linear solenoid valve (60) including a pressure regulating port (60p) which communicates with a hydraulic circuit side, a drain port (60d) which communicates with a drain side, a plunger (61) which controls the state of communication between the pressure regulating port and drain port, and a coil (70) which drives the plunger in accordance with an exciting current. The control device has a current generator (65) which supplies the coil with the exciting current corresponding to a duty signal; and a microcomputer (1). The microcomputer determines whether or not a preset foreign matter removal starting condition for removing foreign matter accumulated in the ports has been established. When the foreign matter removal starting condition is established, the microcomputer sets a variation pattern for a current command value in the form of a rectangular wave having a preset maximum current command value (A1) and a preset minimum current command value (A0), and transmit to the current generator a first duty signal corresponding to the maximum current command value and a second duty signal corresponding to the minimum current command value. The microcomputer further determines whether or not a preset foreign matter removal completion condition has been established. When the foreign matter removal completion condition is established, the microcomputer terminates the setting of the rectangular wave variation pattern.
摘要翻译：公开了一种用于控制双向线性电磁阀（60）的控制装置，其包括与液压回路侧连通的压力调节口（60p），与排水侧连通的排出口（60d），柱塞（61 ），其控制压力调节口和排出口之间的连通状态，以及根据励磁电流驱动柱塞的线圈（70）。控制装置具有电流发生器（65），其向线圈提供与占空比信号相对应的励磁电流; 和微计算机（1）。微型计算机确定是否建立了用于去除在端口中累积的异物的预设异物去除开始条件。当异物去除开始条件成立时，微型计算机以具有预设最大电流指令值（A1）和预设最小电流指令值（A0）的矩形波形式形成电流指令值的变化模式，以及向电流发生器发送对应于最大电流指令值的第一占空比信号和对应于最小电流指令值的第二占空比信号。微型计算机进一步确定是否建立了预设的异物去除完成条件。当异物去除完成条件成立时，微计算机终止矩形波变化模式的设置。

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