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1.发明公开公开(公告)号：US20240173149A1
公开(公告)日：2024-05-30
申请号：US18436390
申请日：2024-02-08
申请人： EXONETIK INC.
发明人： Pascal Larose , Marc DENNINGER , Jean-Sebastien PLANTE , Jean-Philippe LUCKING BIGUE , Catherine VERONNEAU
CPC分类号： A61F2/70 , A61F5/0127 , A61F5/013 , A61H1/0281 , B25J9/0006 , F16D37/02 , A61F2002/6845 , A61F2002/6863 , A61F2/74 , A61F2/741 , A61F2005/0155 , A61H2201/1207 , A61H2201/1616 , A61H2201/165 , F16D2037/004
摘要： 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.
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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.
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.
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3.发明申请公开(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.
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.
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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.
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.
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公开(公告)号：US10690200B2
公开(公告)日：2020-06-23
申请号：US15748304
申请日：2016-07-28
申请人： EXONETIK INC.
摘要： A braking control apparatus comprises at least one torque source. At least one magnetorheological (MR) fluid clutch apparatus having an input coupled to the at least one torque source to receive torque from the torque source, the MR fluid clutch apparatus controllable to transmit a variable amount of torque via an output thereof. A modulation interface couples the output of the at least one MR fluid clutch apparatus to a braking power transmission of a brake system. At least one sensor provides information indicative of a braking state of the load. A processing unit receives the information indicative of the braking state of the load and for outputting a signal to control the at least one MR fluid clutch apparatus in exerting a desired force on the braking power transmission to assist in braking the load. A method for assisting a manually-actuated braking of a vehicle is also provided.
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公开(公告)号：US20200182310A1
公开(公告)日：2020-06-11
申请号：US16642495
申请日：2018-08-29
申请人： SOCIETE DE COMMERCIALISATION DES PRODUITS DE LA RECHERCHE APPLIQUÉE SOCPRA SCIENCES ET GÉNIE S.E.C. , EXONETIK INC.
摘要： A system for controlling a tension of a tether between an object and a load tethered to the object comprises magnetorheological (MR) fluid actuator unit(s) including at least one torque source and at least one MR fluid clutch apparatus 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 torque via an output of the MR fluid actuator unit. A tensioning member is connected to the output so as to be pulled by the output member upon actuation of the magnetorheological fluid clutch apparatus, a free end of the tensioning member adapted to exert a pulling action when being pulled by the output member. Sensor(s) provide information indicative of a relation between the object and the load tethered to the object. A controller controls the at least one MR fluid clutch apparatus in exerting the pulling action based on said information.
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公开(公告)号：US20190128340A1
公开(公告)日：2019-05-02
申请号：US16095528
申请日：2017-04-25
申请人： EXONETIK INC.
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.
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公开(公告)号：US11821471B2
公开(公告)日：2023-11-21
申请号：US17772003
申请日：2020-11-12
申请人： EXONETIK INC.
发明人： Pascal Larose , Patrick Chouinard , Marc Denninger
IPC分类号： F16D37/02 , E05F15/611 , F16D37/00
CPC分类号： F16D37/02 , E05F15/611 , E05Y2201/216 , E05Y2201/246 , E05Y2900/531 , F16D2037/004 , F16D2200/003
摘要： A system for operating at least one magnetorheological fluid clutch apparatus may, in a first mode, vary an amount of torque transmission between a driving member and a driven member in the at least one magnetorheological fluid clutch apparatus by actuating at least one coil in the at least one magnetorheological fluid clutch apparatus. In a second mode, the system may cause torque transmission between the driven member and the driving member by setting a desired remanent magnetization level in a magnetic component of the at least one magnetorheological fluid clutch apparatus by actuating the at least one coil in the at least one magnetorheological fluid clutch apparatus.
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公开(公告)号：US11267529B2
公开(公告)日：2022-03-08
申请号：US16995908
申请日：2020-08-18
申请人： EXONETIK INC.
IPC分类号： B62M6/55 , B62M6/45 , B62M19/00 , F16D37/02 , E05F15/60 , E05F15/627 , F16D29/00 , B62B5/00 , B60K1/00 , B62M11/14 , B60K7/00 , F16D37/00 , F16H19/06 , E05F15/611 , F16H1/16
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.
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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.
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.
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