Robust operation of tendon-driven robot fingers using force and position-based control laws
    1.
    发明授权
    Robust operation of tendon-driven robot fingers using force and position-based control laws 有权
    使用强力和基于位置的控制规律对肌腱驱动的机器人手指进行稳健的操作

    公开(公告)号:US08489239B2

    公开(公告)日:2013-07-16

    申请号:US12916803

    申请日:2010-11-01

    IPC分类号: G06F19/00 G05B15/00 G05B19/00

    CPC分类号: B25J15/0009 B25J9/1045

    摘要: A robotic system includes a tendon-driven finger and a control system. The system controls the finger via a force-based control law when a tension sensor is available, and via a position-based control law when a sensor is not available. Multiple tendons may each have a corresponding sensor. The system selectively injects a compliance value into the position-based control law when only some sensors are available. A control system includes a host machine and a non-transitory computer-readable medium having a control process, which is executed by the host machine to control the finger via the force- or position-based control law. A method for controlling the finger includes determining the availability of a tension sensor(s), and selectively controlling the finger, using the control system, via the force or position-based control law. The position control law allows the control system to resist disturbances while nominally maintaining the initial state of internal tendon tensions.

    摘要翻译: 机器人系统包括腱驱动的手指和控制系统。 当张力传感器可用时,系统通过基于力的控制律控制手指,并且当传感器不可用时,通过基于位置的控制规律来控制手指。 多个腱可以各自具有相应的传感器。 当只有一些传感器可用时,系统选择性地将符合值注入基于位置的控制律。 控制系统包括主机和具有控制过程的非暂时计算机可读介质,该控制过程由主机通过基于力或基于位置的控制定律来执行以控制手指。 用于控制手指的方法包括确定张力传感器的可用性,以及使用控制系统通过力或基于位置的控制律选择性地控制手指。 位置控制法允许控制系统抵抗干扰,同时名义上保持内部肌腱张力的初始状态。

    ROBUST OPERATION OF TENDON-DRIVEN ROBOT FINGERS USING FORCE AND POSITION-BASED CONTROL LAWS
    2.
    发明申请
    ROBUST OPERATION OF TENDON-DRIVEN ROBOT FINGERS USING FORCE AND POSITION-BASED CONTROL LAWS 有权
    使用强力和基于位置的控制法强力运转机器人手指

    公开(公告)号:US20120109379A1

    公开(公告)日:2012-05-03

    申请号:US12916803

    申请日:2010-11-01

    IPC分类号: G05B15/00

    CPC分类号: B25J15/0009 B25J9/1045

    摘要: A robotic system includes a tendon-driven finger and a control system. The system controls the finger via a force-based control law when a tension sensor is available, and via a position-based control law when a sensor is not available. Multiple tendons may each have a corresponding sensor. The system selectively injects a compliance value into the position-based control law when only some sensors are available. A control system includes a host machine and a non-transitory computer-readable medium having a control process, which is executed by the host machine to control the finger via the force- or position-based control law. A method for controlling the finger includes determining the availability of a tension sensor(s), and selectively controlling the finger, using the control system, via the force or position-based control law. The position control law allows the control system to resist disturbances while nominally maintaining the initial state of internal tendon tensions.

    摘要翻译: 机器人系统包括腱驱动的手指和控制系统。 当张力传感器可用时,系统通过基于力的控制律控制手指,并且当传感器不可用时,通过基于位置的控制规律来控制手指。 多个腱可以各自具有相应的传感器。 当只有一些传感器可用时,系统选择性地将符合值注入基于位置的控制律。 控制系统包括主机和具有控制过程的非暂时计算机可读介质,该控制过程由主机通过基于力或基于位置的控制定律来执行以控制手指。 用于控制手指的方法包括确定张力传感器的可用性,以及使用控制系统通过力或基于位置的控制律选择性地控制手指。 位置控制法允许控制系统抵抗干扰,同时名义上保持内部肌腱张力的初始状态。

    TORQUE CONTROL OF UNDERACTUATED TENDON-DRIVEN ROBOTIC FINGERS
    4.
    发明申请
    TORQUE CONTROL OF UNDERACTUATED TENDON-DRIVEN ROBOTIC FINGERS 有权
    受力驱动的机动手指的扭矩控制

    公开(公告)号:US20100280662A1

    公开(公告)日:2010-11-04

    申请号:US12720727

    申请日:2010-03-10

    IPC分类号: G05B15/00

    CPC分类号: H01R13/17 H01R13/052

    摘要: A robotic system includes a robot having a total number of degrees of freedom (DOF) equal to at least n, an underactuated tendon-driven finger driven by n tendons and n DOF, the finger having at least two joints, being characterized by an asymmetrical joint radius in one embodiment. A controller is in communication with the robot, and controls actuation of the tendon-driven finger using force control. Operating the finger with force control on the tendons, rather than position control, eliminates the unconstrained slack-space that would have otherwise existed. The controller may utilize the asymmetrical joint radii to independently command joint torques. A method of controlling the finger includes commanding either independent or parameterized joint torques to the controller to actuate the fingers via force control on the tendons.

    摘要翻译: 机器人系统包括具有等于至少n的总自由度(DOF)等于至少n的机器人,由n个腱和n个DOF驱动的欠驱动的腱驱动的手指,所述手指具有至少两个关节,其特征在于不对称的 一个实施例中的接头半径。 控制器与机器人通信,并且使用力控制来控制腱驱动的手指的致动。 通过对肌腱的力控制操作手指,而不是位置控制,消除了否则存在的无约束的松弛空间。 控制器可以利用非对称关节半径来独立地命令关节扭矩。 控制手指的方法包括将独立或参数化的关节扭矩指令给控制器以通过对肌腱上的力控制来致动手指。

    Torque control of underactuated tendon-driven robotic fingers
    6.
    发明授权
    Torque control of underactuated tendon-driven robotic fingers 有权
    欠肌腱驱动机器人手指的扭矩控制

    公开(公告)号:US08565918B2

    公开(公告)日:2013-10-22

    申请号:US12720727

    申请日:2010-03-10

    IPC分类号: G06F19/00

    CPC分类号: H01R13/17 H01R13/052

    摘要: A robotic system includes a robot having a total number of degrees of freedom (DOF) equal to at least n, an underactuated tendon-driven finger driven by n tendons and n DOF, the finger having at least two joints, being characterized by an asymmetrical joint radius in one embodiment. A controller is in communication with the robot, and controls actuation of the tendon-driven finger using force control. Operating the finger with force control on the tendons, rather than position control, eliminates the unconstrained slack-space that would have otherwise existed. The controller may utilize the asymmetrical joint radii to independently command joint torques. A method of controlling the finger includes commanding either independent or parameterized joint torques to the controller to actuate the fingers via force control on the tendons.

    摘要翻译: 机器人系统包括具有等于至少n的总自由度(DOF)等于至少n的机器人,由n个腱和n个DOF驱动的欠驱动的腱驱动的手指,所述手指具有至少两个关节,其特征在于不对称的 一个实施例中的接头半径。 控制器与机器人通信,并且使用力控制来控制腱驱动的手指的致动。 通过对肌腱的力控制操作手指,而不是位置控制,消除了否则存在的无约束的松弛空间。 控制器可以利用非对称关节半径来独立地命令关节扭矩。 控制手指的方法包括将独立或参数化的关节扭矩指令给控制器以通过对肌腱上的力控制来致动手指。