LOW-IMPEDANCE ACTUATION DEVICE USINGMAGNETORHEOLOGICAL FLUID CLUTCH APPARATUSES

    公开(公告)号:US20230098877A1

    公开(公告)日:2023-03-30

    申请号:US17795736

    申请日:2021-02-08

    Applicant: EXONETIK INC.

    Abstract: A magnetorheological (MR) actuator device comprising two or more MR actuator units. Each of the MR actuator units may include a motor, an MR fluid clutch apparatus operatively coupled to the motor to receive torque from the motor, the MR fluid clutch apparatus operable to generate a variable amount of torque transmission when subjected to a magnetic field. An output member is provided, a transmission operatively coupling the at least two MR actuator units to the output member, for the output member to receive torque from the MR actuator units. A controller for controlling the two or more MR actuator units to drive the output member, the controller driving the output member in at least an antagonistic mode in which the MR actuator units transmit torque in opposite directions to the output member. A collaborative mode may be provided to combined the torque of the two or more MR actuator units in a common direction on the output member.

    EXOSKELETON, ORTHOSIS, WEARABLE DEVICE OR MOBILE ROBOTS USING MAGNETORHEOLOGICAL FLUID CLUTCH APPARATUS

    公开(公告)号:US20200069441A1

    公开(公告)日:2020-03-05

    申请号:US16610337

    申请日:2018-05-14

    Applicant: EXONETIK INC.

    Abstract: A system comprises one or more wearable devices including a first body interface adapted to be secured to a first bodily part. A second body interface is adapted to be secured to a second bodily part separated from the first bodily part by a physiological joint. One or more joints provide one or more degrees of freedom between the first body interface and the second body interface. A magnetorheological (MR) fluid actuator unit comprises one or more power sources. An MR fluid clutch apparatus receiving torque from the at least one power source, the at least one MR fluid clutch apparatus operable to generate a variable amount of torque transmission when subjected to a magnetic field. A transmission couples the MR fluid actuator unit to the wearable device for converting torque from the MR fluid actuator unit to relative movement of the body interfaces with respect to one another.

Patent Agency Ranking