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    Magnetorheological fluid clutch apparatus with cylindrical fluid gap
    2.
    发明授权
    Magnetorheological fluid clutch apparatus with cylindrical fluid gap 有权

    公开(公告)号：US10480594B2

    公开(公告)日：2019-11-19

    申请号：US15785916

    申请日：2016-04-21

    申请人： EXONETIK INC.

    发明人： Jean-Sebastien Plante ,  Marc Denninger ,  Guifre Julio ,  Patrick Chouinard ,  Pascal Larose

    IPC分类号： F16D37/02 ,  F16D29/00 ,  B64C27/59 ,  F16D37/00

    摘要： A magnetorheological fluid clutch apparatus comprises a stator having at least an annular wall; a first rotor rotatably mounted to the stator, the first rotor having at least one first shear surface; a second rotor rotatably mounted to the stator for rotating about a common axis with the first rotor, the second rotor having at least one second shear surface opposite the at least one first shear surface, the shear surfaces separated by at least one annular space. A magnetorheological (MR) fluid is in an MR fluid chamber including the at least one annular space, the MR fluid configured to generate a variable amount of torque transmission between the rotors when subjected to a magnetic field. An inner magnetic core and an outer magnetic core with an annular cavity therebetween receive the annular wall of the stator, the inner magnetic core and the outer magnetic core connected to at least one of the rotors to rotate therewith so as to be rotatably mounted to the stator. Outer and inner fluid gaps are between the inner magnetic core and the annular wall, and between the outer magnetic core and the annular wall, the outer and inner fluid gaps filled with at least one fluid. At least one coil is supported by the annular wall and actuatable to deliver a magnetic field through the MR fluid, the magnetic field following a path comprising the annular wall, the outer fluid gap, the outer magnetic core, the at least one first shear surface and the at least one second shear surface,the inner magnetic core and the inner fluid gap, wherein one of the rotors is adapted to be coupled to a power input and the other of the rotors is adapted to be connected to an output whereby actuation of the at least one coil results in a variation of torque transmission between the rotors.

    HUMAN-HYBRID POWERTRAIN FOR A VEHICLE OR MOVING EQUIPMENT USING MAGNETORHEOLOGICAL FLUID CLUTCH APPARATUS
    3.
    发明申请
    HUMAN-HYBRID POWERTRAIN FOR A VEHICLE OR MOVING EQUIPMENT USING MAGNETORHEOLOGICAL FLUID CLUTCH APPARATUS 审中-公开

    公开(公告)号：US20180370591A1

    公开(公告)日：2018-12-27

    申请号：US15776611

    申请日：2016-11-16

    申请人： EXONETIK INC.

    发明人： Marc DENNINGER ,  Guifre JULIO ,  Jean-Sebastien PLANTE ,  Pascal Larose

    IPC分类号： B62M6/55 ,  F16H19/06 ,  B62M19/00 ,  F16D37/02 ,  B62M6/45 ,  E05F15/60 ,  E05F15/627

    摘要： A system for assisting a user in moving a device relative to a structure comprises a magnetorheological (MR) fluid actuator unit including at least one torque source and at least one MR fluid clutch apparatus having an input coupled to the at least one torque source to receive torque from the at least one torque source, the MR fluid clutch apparatus controllable to transmit a variable amount of assistance force via an output thereof. An interface is configured for coupling the output of the at least one MR fluid clutch apparatus to the device or surrounding structure. At least one sensor provides information about a movement of the device. A processor unit for controlling the at least one MR fluid clutch apparatus in exerting the variable amount of assistance force as a function of said information, wherein the system is configured for one of the MR fluid actuator unit and the interface to be coupled to the structure, and for the other of the MR fluid actuator unit and the interface to be coupled to the device for the assistance force from the MR fluid actuator unit to assist in moving the device.

    Magnetorheological fluid clutch apparatus with low permeability drums
    4.
    发明授权
    Magnetorheological fluid clutch apparatus with low permeability drums 有权

    公开(公告)号：US11499594B2

    公开(公告)日：2022-11-15

    申请号：US17284601

    申请日：2019-10-11

    申请人： EXONETIK INC.

    发明人： Jean-Sebastien Plante ,  Jérôme Marchand ,  Pascal Larose ,  Patrick Chouinard ,  Marc Denninger ,  Jean-Philippe Lucking Bigue

    IPC分类号： F16D37/02 ,  F16D37/00

    摘要： A magnetorheological fluid clutch apparatus comprises an input(s) having an input shear surface(s). An output(s) is rotatably mounted about the input for rotating about a common axis with the input, the output(s) having output shear surface(s), the input shear surface and the output shear surface separated annular space(s), with magnetorheological fluid, configured to generate a variable amount of torque transmission between the sets of input rotor and output rotor when subjected to a magnetic field. An electromagnet(s) delivers a magnetic field through the magnetorheological fluid, the electromagnet configured to vary the strength of the magnetic field, whereby actuation of the electromagnet results in torque transmission from the input to the output. A member(s) defining at least one of the shear surfaces is made of a low-permeability material.

    Multimode control system for magnetorheological fluid actuator unit
    6.
    发明授权
    Multimode control system for magnetorheological fluid actuator unit 有权

    公开(公告)号：US10746235B2

    公开(公告)日：2020-08-18

    申请号：US16095528

    申请日：2017-04-25

    申请人： EXONETIK INC.

    发明人： Marc Denninger ,  Guifre Julio ,  Jean-Sebastien Plante ,  Pascal Larose

    IPC分类号： F16D37/00 ,  B25J9/10 ,  B25J9/12 ,  B25J13/08 ,  F16D27/10 ,  F16D48/06 ,  F16D37/02 ,  B25J9/16 ,  F16D7/02 ,  B25J19/00 ,  B25J19/06 ,  B25J9/14

    摘要： A control system is provided for controlling movements of an end effector connected to a clutch output of at least one magnetorheological (MR) fluid clutch apparatus. A clutch driver is configured to drive the at least one MR fluid clutch apparatus between a controlled slippage mode, in which slippage between a clutch input and the clutch output of the MR fluid clutch apparatus varies, and a lock mode, in which said slippage between the clutch input and the clutch output is maintained below a given threshold, the clutch output transmitting movement to the end effector. A motor driver is configured to control a motor output of at least one motor, the motor output coupled to the clutch input. A mode selector module is configured to receive signals representative of at least one movement parameter of the end effector, the mode selector module selecting a mode between the controlled slippage mode and the lock mode of the clutch driver based on the signals, and switching the selected mode based on the signals. A movement controller controls the clutch driver and the motor driver to displace the end effector based on at least one of the selected mode and on commanded movements of the end effector for the end effector to achieve the commanded movements. A method for controlling movements of an end effector connected to the MR fluid clutch apparatus is also provided.

    Telepresence controller and system using magnetorheological fluid clutch apparatuses
    8.
    发明授权
    Telepresence controller and system using magnetorheological fluid clutch apparatuses 有权

    公开(公告)号：US11027434B2

    公开(公告)日：2021-06-08

    申请号：US16329395

    申请日：2017-09-01

    申请人： EXONETIK INC.

    发明人： Pascal Larose ,  Jean-Sebastien Plante ,  Marc Denninger ,  Guifre Julio

    IPC分类号： B25J13/02 ,  B25J9/16 ,  B25J13/08 ,  F16D37/02

    摘要： A telepresence controller is provided for interaction with a remote telepresence session to control haptic interactions between an end effector and the remote telepresence session. Force sensor(s) monitor force(s) applied to an end effector. Position sensor(s) monitor a position of the end effector. The telepresence controller communicates with the remote telepresence session to exchange position data and force data indicative of concurrent haptic movements of the end effector and an object in the remote telepresence session. Magnetorheological fluid clutch apparatus(es) have an input adapted to be connected to a power source and configured to receive a degree of actuation (DOA) therefrom, the magnetorheological fluid clutch apparatus(es) having an output being actuatable to selectively transmit the received DOA to the end effector by controlled slippage. A force controller module determines a force input required on the end effector as a function of haptic events for the object in the remote telepresence session. A clutch driver module drives the magnetorheological fluid clutch apparatus with the controlled slippage being as a function of the force input.

    Multiple MR fluid clutch apparatuses sharing MR fluid
    10.
    发明授权
    Multiple MR fluid clutch apparatuses sharing MR fluid 有权

    公开(公告)号：US11092201B2

    公开(公告)日：2021-08-17

    申请号：US16340556

    申请日：2017-10-13

    申请人： EXONETIK INC.

    发明人： Jean-Sebastien Plante ,  Pascal Larose ,  Marc Denninger ,  Guifre Julio

    IPC分类号： F16D27/12 ,  F16D25/12 ,  F16D27/14 ,  F16D37/00 ,  F16H15/01 ,  F16D37/02

    摘要： A system comprises magnetorheological fluid clutch apparatuses, each magnetorheological fluid clutch apparatus including a first rotor having at least one first shear surface, a second rotor rotating about a common axis with the first rotor, the second rotor having at least one second shear surface opposite the at least one first shear surface, the shear surfaces separated by at least one annular space, magnetorheological (MR) fluid in an MR fluid chamber including the at least one annular space, the MR fluid configured to generate a variable amount of torque transmission between the rotors when subjected to a magnetic field, and coil(s) actuatable to deliver a magnetic field through the MR fluid such that each said magnetorheological fluid clutch apparatus is actuatable to selectively transmit actuation by controlled slippage of the rotors with respect to one another. The MR fluid chambers of the second magnetorheological fluid clutch apparatuses are in fluid communication for the MR fluid to circulate between the magnetorheological fluid clutch apparatuses.