发明申请
- 专利标题: Actuator Limit Controller
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申请号: US16550903申请日: 2019-08-26
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公开(公告)号: US20190376533A1公开(公告)日: 2019-12-12
- 发明人: Alex Perkins , Kevin Blankespoor , Alfred Rizzi
- 申请人: Boston Dynamics, Inc.
- 申请人地址: US MA Waltham
- 专利权人: Boston Dynamics, Inc.
- 当前专利权人: Boston Dynamics, Inc.
- 当前专利权人地址: US MA Waltham
- 主分类号: F15B13/02
- IPC分类号: F15B13/02 ; F15B15/28 ; F15B11/048 ; F15B21/08 ; F15B9/09
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
- US10851810B2 Actuator limit controller 公开/授权日:2020-12-01
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