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公开(公告)号:US20160025114A1
公开(公告)日:2016-01-28
申请号:US14489778
申请日:2014-09-18
申请人: Google Inc.
发明人: Alex Perkins , Kevin Blankespoor , Alfred Rizzi
IPC分类号: F15B13/02
CPC分类号: F15B13/021 , F15B9/09 , F15B11/048 , F15B15/28 , F15B15/2815 , F15B21/08 , F15B2211/30575 , F15B2211/6336 , F15B2211/665 , F15B2211/6654 , F15B2211/6656 , F15B2211/6658 , F15B2211/7053 , F15B2211/755 , F15B2211/7653 , F15B2211/8606 , G05B19/00
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.
摘要翻译: 在一些应用中,液压致动器的活塞可以高速运动,并且如果活塞以高速到达液压致动器的终端,则可能产生大的不期望的力。 例如,不期望的力可能导致液压致动器中的机械损坏。 控制器可以接收指示活塞到达终端的第一阈值距离处的第一位置的信息,并且作为响应,可以将信号修改为控制液压流体流向和从液压致动器流出的阀组件。 此外,控制器可以接收指示活塞到达靠近液压致动器的停止的第二阈值距离处的第二位置的信息,并且作为响应,控制器可以进一步修改到阀组件的信号,以便 在活塞上远离终点站施加力。
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公开(公告)号:US09546672B2
公开(公告)日:2017-01-17
申请号:US14489778
申请日:2014-09-18
申请人: Google Inc.
发明人: Alex Perkins , Kevin Blankespoor , Alfred Rizzi
IPC分类号: F15B9/09 , F15B13/02 , F15B21/08 , F15B15/28 , F15B11/048
CPC分类号: F15B13/021 , F15B9/09 , F15B11/048 , F15B15/28 , F15B15/2815 , F15B21/08 , F15B2211/30575 , F15B2211/6336 , F15B2211/665 , F15B2211/6654 , F15B2211/6656 , F15B2211/6658 , F15B2211/7053 , F15B2211/755 , F15B2211/7653 , F15B2211/8606 , G05B19/00
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.
摘要翻译: 在一些应用中,液压致动器的活塞可以高速运动,并且如果活塞以高速到达液压致动器的终端,则可能产生大的不期望的力。 例如,不期望的力可能导致液压致动器中的机械损坏。 控制器可以接收指示活塞到达终端的第一阈值距离处的第一位置的信息,并且作为响应,可以将信号修改为控制液压流体流向和从液压致动器流出的阀组件。 此外,控制器可以接收指示活塞到达靠近液压致动器的停止的第二阈值距离处的第二位置的信息,并且作为响应,控制器可以进一步修改到阀组件的信号,以便 在活塞上远离终点站施加力。
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公开(公告)号:US20170089365A1
公开(公告)日:2017-03-30
申请号:US15373626
申请日:2016-12-09
申请人: Google Inc.
发明人: Alex Perkins , Kevin Blankespoor , Alfred Rizzi
IPC分类号: F15B13/02 , F15B15/28 , F15B21/08 , 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.
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