发明授权
- 专利标题： Methods and apparatus to limit a change of a drive value in an electro-pneumatic controller
- 专利标题（中）： 限制电动气动控制器中驱动值变化的方法和装置
-
申请号： US13654091申请日： 2012-10-17
-
公开(公告)号： US09063540B2公开(公告)日： 2015-06-23
- 发明人: Stephen George Seberger
- 申请人： FISHER CONTROLS INTERNATIONAL LLC
- 申请人地址： US IA Marshalltown
- 专利权人： Fisher Controls International LLC
- 当前专利权人： Fisher Controls International LLC
- 当前专利权人地址： US IA Marshalltown
- 代理机构： Hanley, Flight & Zimmerman LLC
- 主分类号： G05B13/02
- IPC分类号： G05B13/02 ; G05B19/44 ; G05D3/20
摘要：
Example methods and apparatus to limit a change of a drive value in an electro-pneumatic controller are disclosed. A disclosed example method includes determining a slew limit of a controller based on noise in at least one of a control signal or a feedback signal, calculating a drive value based on the control signal and the feedback signal, and changing the calculated drive value if a difference between the drive value and a previous drive value is greater than the slew limit of the controller.
公开/授权文献
信息查询
