发明授权
- 专利标题: Actuator limit controller
- 专利标题(中): 执行器限位控制器
-
申请号: US14489778申请日: 2014-09-18
-
公开(公告)号: US09546672B2公开(公告)日: 2017-01-17
- 发明人: Alex Perkins , Kevin Blankespoor , Alfred Rizzi
- 申请人: Google Inc.
- 申请人地址: US CA Mountain View
- 专利权人: Google Inc.
- 当前专利权人: Google Inc.
- 当前专利权人地址: US CA Mountain View
- 代理机构: McDonnell Boehnen Hulbert & Berghoff LLP
- 主分类号: F15B9/09
- IPC分类号: F15B9/09 ; F15B13/02 ; F15B21/08 ; F15B15/28 ; F15B11/048
摘要:
In some applications, a piston of a hydraulic actuator may move at high speeds, and large undesired forces may be generated if the piston reaches an end-stop of the hydraulic actuator at a high speed. The undesired forces may, for example, cause mechanical damage in the hydraulic actuator. A controller may receive information indicative of the piston reaching a first position at a first threshold distance from the end-stop, and, in response, may modify a signal to a valve assembly controlling flow of hydraulic fluid to and from the hydraulic actuator. Further, the controller may receive information indicative of the piston reaching a second position at a second threshold distance closer to the end-stop of the hydraulic actuator, and, in response, the controller may further modify the signal to the valve assembly so as to apply a force on the piston in a away from the end-stop.
公开/授权文献
- US20160025114A1 Actuator Limit Controller 公开/授权日:2016-01-28
信息查询