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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Применить Всего найдено 2305. Отображено 100.

15-03-2012 дата публикации

Rotation structure of knee joint of artificial limb

Номер: US20120065742A1

Автор: xiang-ming Wu

Принадлежит: Ken Dall Enterprise Co Ltd

A rotation structure of knee joint of artificial limb includes a rotation head forming a rotation-head bore and having a top surface forming a rotation-head recess. The rotation-head recess has an open notch extending outside the rotation head. An arrest block is received in the rotation-head recess and has an end forming a push tab corresponding to the open notch and also forms, in a central portion thereof, an arrest-block opening. A detent is formed on an inner edge of the arrest-block opening. The arrest block is shaped to correspond to the rotation-head recess, but the rotation-head recess has a length greater than that of the arrest block. An arrest shaft forms a retention slot and has a lower end receiving through the arrest-block opening and the rotation-head bore in such a way that the detent of the arrest-block opening is engageable with the retention slot of the arrest shaft.

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Номер записи: 1

05-04-2012 дата публикации

Arrangement comprising at least one dog clutch

Номер: US20120083374A1

Автор: Peter Tiesler, Peter Ziemer, Thilo Schmidt

Принадлежит: ZF FRIEDRICHSHAFEN AG

An arrangement which comprises at least one claw clutch that can be connected to at least one component of a transmission, such that the claw clutch is arranged substantially within a bearing support ( 1 ) of the transmission.

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Номер записи: 2

26-04-2012 дата публикации

Transmission device between an input drive shaft and an output shaft, such as the shaft for driving the wheels of a travelling machine

Номер: US20120096965A1

Автор: Robert Blanchard

Принадлежит: France Reducteurs SA

Transmission device between an input drive shaft and an output shaft, of the type including a housing inside which are placed at least partially a reduction gear mechanism and a progressive cone clutch mechanism, the reduction gear mechanism including a driving member engaged with a driven member, formed by a gearwheel mounted so as to rotate freely on the output shaft and able to be coupled to/uncoupled from the output shaft via two friction cones of the clutch mechanism, the cones being placed coaxial to the axial bore of the gearwheel and capable of coming, under the action of a control device, into bearing contact with a conical bearing surface of the gearwheel. The conical bearing surfaces of the gearwheel are, relative to the axis of rotation of the gearwheel, offset axially from the gear teeth of the gearwheel and are placed on the same side of the gear teeth.

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Номер записи: 3

06-06-2013 дата публикации

TRANSFEMORAL PROSTHETIC SYSTEMS AND METHODS FOR OPERATING THE SAME

Номер: US20130144402A1

Автор: Clausen Arinbjorn Viggo, Oddsson Magnús

Принадлежит: Össur hf.

Certain embodiments of the invention relate to increasing the functionality of a transfemoral prosthetic device. In one embodiment, the transfemoral prosthetic device is configured such that the prosthetic knee maintains a load consistent with a healthy knee walking on level ground, while the prosthetic ankle adjusts for the incline or decline. In certain embodiments, adjustments, such as a toe lift function, are automatically performed after about three strides of the transfemoral prosthetic device user and/or when each of the strides has a stride speed of at least about 0.55 meters/second. 1. A method of controlling a transfemoral prosthetic device , comprising:detecting walking of a user of a transfemoral prosthetic device on a sloped surface, the transfemoral prosthetic device comprising an electronically controlled prosthetic ankle and a prosthetic knee, the prosthetic knee including at least a force sensor;adjusting an angle of the prosthetic ankle in response to the detection of the sloped surface in a manner that the force sensor of the prosthetic knee does not detect that the user is walking on a sloped surface; andadjusting the angle of the prosthetic knee while the user walks on the sloped surface as though the user is walking on level ground.2. The method of claim 1 , wherein the prosthetic ankle communicates its joint angle to the prosthetic knee when the angle of the prosthetic ankle has changed.3. The method of claim 1 , wherein the prosthetic knee is an electronically controlled prosthetic knee.4. The method of claim 1 , further comprising transmitting data between the ankle and the knee.5. A method of controlling a transfemoral prosthetic device claim 1 , comprising:detecting walking of a user of a transfemoral prosthetic device on a surface using at least a force measurement, the transfemoral prosthetic device comprising an electronically controlled prosthetic ankle and an electronically controlled prosthetic knee; andcontrolling the knee based on ...

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Номер записи: 4

13-06-2013 дата публикации

Powered Lower Extremity Orthotic and Method of Operation

Номер: US20130150980A1

Автор: Fairbanks Dylan Miller, Kazerooni Homayoon, Kruze Sebastian, LAMBRECHT Bram Gilbert Antoon, Pillai Minerva Vasudevan, Rosa Matthew, SCHWARTZ Miclas, Strausser Katherine, Swift Tim, Zoss Adam Brian

Принадлежит:

A powered lower extremity orthotic, including a shank link coupled to an artificial foot, a knee mechanism connected to the shank link and a thigh link, is controlled by based on signals from various orthotic mounted sensors such that the artificial foot follows a predetermined trajectory defined by at least one Cartesian coordinate. 1. A method of controlling a powered lower extremity orthotic having at least one leg with at least two actuators configured to be controlled by a signal processor and coupled to the lower limb of a person , comprising:controlling a trajectory of a reference point on the at least one leg of said orthotic when the at least one leg is not touching a ground surface to follow a predetermined trajectory that is defined by at least one Cartesian coordinate.2. The method of wherein the Cartesian claim 1 , coordinate is measured in a horizontal axis.3. The method of wherein the Cartesian coordinate is measured in a vertical axis.4. The method of wherein the Cartesian coordinate is measured in an axis that is not purely horizontal or vertical.5. The method of wherein the trajectory is defined by a vertical Cartesian coordinate and a knee angle coordinate.6. The method of wherein the trajectory is defined by a vertical Cartesian coordinate and a hip angle coordinate.7. The method of wherein the trajectory is defined by a horizontal Cartesian coordinate and a knee angle coordinate.8. The method of wherein the trajectory is defined by a horizontal Cartesian coordinate and a hip angle coordinate.9. The method of further comprising: measuring the trajectory of said reference point with respect to a torso link configured to couple said orthotic to a pelvis or torso region of the person.10. The method of wherein the trajectory of said reference point is measured with respect to an absolute frame of reference.11. The method of wherein the trajectory of said reference point is measured with respect to the ground.12. The method of further comprising: ...

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Номер записи: 5

04-07-2013 дата публикации

Driving force transmission device

Номер: US20130168197A1

Автор: Jun Furuichi, Kuniaki Miyake

Принадлежит: Nissan Motor Co Ltd

A hybrid driving force transmission device is provided with a multiple-plate dry clutch, a piston, a piston arm, a return spring, bellows elastic seal components and an arm fixing plate. The return spring applies biasing force to the piston arm in the release direction of the clutch, during the release period of the multiple-plate dry clutch. The bellows elastic seal member is secured or maintained in a position on the side wall of a clutch drum and seals a through hole and arm distal end from the clutch chamber, and undergoes an elastic deformation following the stroke movement of the arm distal end. The arm fixing plate is integrally provided with the bellows elastic seal member, is fixed to the arm distal end, and when the multiple-plate dry clutch is engaged, is configured to contact the clutch plate for transferring the clutch engagement force.

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Номер записи: 6

04-07-2013 дата публикации

Lower Limb Prosthesis and Control Unit

Номер: US20130173019A1

Автор: Moser David, Sykes Andrew John, Zahedi Mir Saeed

Принадлежит: BLATCHFORD PRODUCTS LIMITED

A self-teaching lower limb prosthesis, for an above-knee amputee, including a dynamically adjustable joint movement control unit arranged to control operation of the joint automatically. A control unit electrically stores a target relationship between a kinetic or kinematic parameter of locomotion and walking speed. The relationship defines a number of values of the parameter associated with different walking speeds. The control unit generates monitoring signals representative of walking speed values and values of the parameter occurring at different walking speeds. An adjustment system adjusts the control unit automatically when the monitoring signals indicate deviation from the target relationship so as to bring the parameters close to that defined by the target relationship. 1. A self-teaching lower limb prosthesis for an above-knee amputee , the prosthesis including a dynamically adjustable knee movement control unit arranged to control flexion and/or extension movements of a knee joint of the prosthesis , wherein the control unit includes:an electronic storage device storing a target relationship between a kinetic or kinematic parameter of locomotion and walking speed, the relationship defining a plurality of values of the parameter associated with different respective walking speeds,a monitoring system arranged to generate monitoring signals representative of walking speed values and values of the parameter occurring during use of the prosthesis at different walking speeds, andan adjustment system arranged to adjust the control unit automatically in response to the said monitoring signals indicating deviation of the parameter from the target relationship so as to bring the parameter closer to a value defined by the target relationship for the respective walking speed.2. A prosthesis according to claim 1 , wherein the monitoring and adjustment systems are respectively arranged to generate the monitoring signals over a plurality of walking step cycles and to ...

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Номер записи: 7

25-07-2013 дата публикации

JOINT MECHANISM

Номер: US20130190896A1

Автор: Bröckl Heinz, Dietl Hans

Принадлежит: OTTO BOCK HEALTHCARE PRODUCTS GMBH

The invention relates to a join mechanism of a knee orthosis or knee prosthesis, having a first part (), a second part (), which is pivotable relative to the latter, and attachment means () for securing the joint mechanism () to a user of the knee orthosis or knee prosthesis, and having a locking mechanism () with which a pivoting of the two parts () relative to each other in a flexion direction is prevented by a form-fit element ) which is arranged movably on the second part () and which, in the locking state, engages with a form lit in a recess () assigned to the first part (), wherein the form-fit element () is mounted rotatably on the second part () and has a contour which, in the locked position, protrudes into the recess () and, in the released position, allows the first part () to pivot past the bearing of the form-fit element (). 1. A joint mechanism of a knee orthosis or knee prosthesis having a first part and a second part , which is pivotable in relation thereto , and a connector for fastening the joint mechanism on a user of the knee orthosis or knee prosthesis , as well as having a locking mechanism , by way of which a pivoting of the two parts relative to one another in the direction of flexion is prevented with a positive locking element , which is arranged so as to be displaceable on the second part and , in a locking position , engages in a positive locking manner in a recess associated with the first part , the positive locking element being mounted so as to be rotatable on the second part and has a contour which , in the locking position , projects into the recess and in a release position enables the first part to pivot past the positive locking element.2. The joint mechanism as claimed in claim 1 , wherein the positive locking element is prestressed in a spring-loaded manner in a direction of the locking position.3. The joint mechanism as claimed in claim 1 , wherein the positive locking element comprises a bolt with a round or oval cross ...

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Номер записи: 8

10-10-2013 дата публикации

SYSTEM AND METHOD FOR PROVIDING BIOMECHANICALLY SUITABLE RUNNING GAIT IN POWERED LOWER LIMB DEVICES

Номер: US20130268090A1

Автор: Goldfarb Michael, Lawson Brian, Shultz Amanda

Принадлежит: VANDERBILT UNIVERSITY

Systems and methods for a running controller for a lower limb device including at least a powered knee joint are provided. The method includes collecting real-time sensor information for the lower limb device and configuring the lower limb device to a first state in a finite state model for an activity mode including the running mode. The method further includes, based on the sensor information, transitioning the lower limb device from a current state to a subsequent state in the finite state model for the detected mode when a pre-defined criteria for transitioning to the subsequent state is met, and repeating the transitioning until the activity mode changes. In the system and method, the finite state model includes at least one stance state and at least one swing state, where the at least one stance state includes at least one absorption state and at least one propulsion state. 1. A method of operating a lower limb device comprising at least a powered knee joint , the method comprising:configuring the lower limb device to a state in a finite state model for an activity mode comprising a running mode;based on real-time sensor information for the lower limb device, transitioning the lower limb device from a current state in the finite state model to a subsequent state in the finite state model for the current activity mode when a pre-defined criteria for transitioning to the subsequent state is met; andrepeating the transitioning until the activity mode changes,wherein the finite state model comprises at least one stance state and at least one swing state, and wherein the at least one stance state comprises at least one absorption state and at least one propulsion state.2. The method of claim 1 , wherein the transitioning comprises:causing the powered knee joint to dissipate a first amount of power during the at least one absorption state, andcausing the powered knee joint to generate a second amount of power during the at least one propulsion state,wherein the ...

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Номер записи: 9

10-10-2013 дата публикации

ACTUATED LEG PROSTHESES FOR AMPUTEES

Номер: US20130268093A1

Автор: Gilbert Benoit, Landry David

Принадлежит:

A prosthetic or orthotic device can include at least one device portion and a joint portion for providing for the at least one device portion to pivot between flexion and extension movements relative to another adjacent device portion or an adjacent limb segment of a user. In some embodiments, a prosthetic or orthotic device can include a compliant transmission assembly in operational communication with the joint portion. The compliant transmission assembly can include a compliant member and a pivot. The pivot can be interposed between the compliant member and the joint portion. In some embodiments, the compliant member absorbs energy when a torque is applied. 1. A prosthetic/orthotic device comprising:at least one device portion;a joint portion for providing for said at least one device portion to pivot between flexion and extension movements relative to another adjacent device portion or an adjacent limb segment of a user; anda compliant transmission assembly in operational communication with said joint portion, said compliant transmission assembly comprising a compliant member and a pivot interposed between said compliant member and said joint portion,wherein said compliant member absorbs energy when a torque is applied between said at least one device portion and said another adjacent prosthetic portion or the adjacent limb segment of the user.2. A prosthetic/orthotic device according to claim 1 , wherein said compliant member is configured such that it can absorb energy during flexion and can release the energy during extension.3. A prosthetic/orthotic device according to claim 1 , wherein when absorbing energy said compliant member resists flexion of said device portion and when releasing energy said compliant member assists extension of said device portion.4. A prosthetic/orthotic device according to claim 1 , wherein said compliant member comprises at least one compliant element.5. A prosthetic/orthotic device according to claim 4 , wherein said compliant ...

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Номер записи: 10

17-10-2013 дата публикации

COORDINATING OPERATION OF MULTIPLE LOWER LIMB DEVICES

Номер: US20130274894A1

Автор: Goldfarb Michael, Lawson Brian

Принадлежит: Vanderbilt Uninersity

Systems and methods for operating autonomous lower limb devices, including at least one adjustable joint and configured for at least supporting a body are provided. A method includes collecting real-time sensor information associated with the autonomous lower limb device. The method also includes receiving, over a communications link, remote data for at least one other lower limb device configured for supporting the body. The method further includes generating control data for transitioning the autonomous lower limb device from a current state in a current finite state model for operating the autonomous lower limb device to a different state in the current finite state model, where the different state is selected based on the real-time sensor information and the remote data. 1. A method of operating a plurality of autonomous lower limb devices configured for at least supporting a body and that each comprise at least one adjustable joint , the method comprising:at a first lower limb device of the plurality of the autonomous lower limb devices, collecting real-time sensor information associated with the first lower limb device;receiving at the first lower limb device remote data for at least a second lower limb device of the plurality of autonomous lower limb devices; andgenerating control data for transitioning the at least one adjustable joint of the first lower limb device from a current state in a finite state model for operating the first lower limb device to a different state in the finite state model, wherein the different state is selected based on the real-time sensor information and the remote data.2. The method of claim 1 , wherein the remote data includes at least one of real-time sensor information for the second lower limb device or state data associated with the second lower limb device.3. The method of claim 2 , wherein the generating comprises configuring the control data to transition the first lower limb device to a non-weight bearing state only if ...

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Номер записи: 11

07-11-2013 дата публикации

CONTROL DEVICE AND SYSTEM FOR CONTROLLING AN ACTUATED PROSTHESIS

Номер: US20130297041A1

Автор: Bédard Stéphane

Принадлежит:

A motorized prosthetic device includes a joint member, a limb member, a pressure sensor, and a kinematic sensor. The pressure sensor indicates interaction between the motorized prosthetic device and the ground and the kinematic sensor measures torque at the joint member. A controller receives data from the pressure sensor and kinematic sensor and calculates a control signal based at least on the received data. An electrical motor receives the control signal and operates an actuator in accordance with the received control signal. 1. (canceled)2. A method of controlling an actuated prosthesis of an amputee , the prosthesis comprising an actuator that supplies mechanical energy to move one or more members about a joint , the method comprising:capturing information in real-time from a plurality of artificial proprioceptors about the dynamics of the amputee's movement;processing said information with a control system to determine a relative vertical direction of a type of gait;determining the required force or torque to be applied by the actuator to the joint based at least on the determined relative vertical direction of the locomotion activity; andoutputting a signal from the control system to operate the actuator and create movement of the joint.3. The method of claim 2 , further comprising processing said information with the control system to determine a progression within the locomotion activity of the amputee's movement claim 2 , wherein the lookup table uses the determined progression within the locomotion activity.4. The method of claim 2 , further comprising processing said information with the control system to determine a walking speed of the amputee claim 2 , wherein the lookup table uses the walking speed of the amputee.5. The method of claim 2 , wherein the relative vertical direction comprises at least one of an incline claim 2 , a decline claim 2 , upstairs claim 2 , and downstairs.6. The method of claim 2 , wherein the actuator is operated to move one ...

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Номер записи: 12

21-11-2013 дата публикации

STAIR ASCENT AND DESCENT CONTROL FOR POWERED LOWER LIMB DEVICES

Номер: US20130310949A1

Автор: Goldfarb Michael, Lawson Brian, Varol Atakan Huseyin

Принадлежит: VANDERBILT UNIVERSITY

Systems and methods of operating a lower limb device having at least a powered joint are provided. A method includes configuring the device to a first state in a finite state model for a current activity mode including a stair ascent mode or a stair descent mode. The method also includes, based on real-time sensor information, transitioning the device between different states in the finite state model when pre-defined criteria for transitioning among the different states are met. In the method, the finite state model for stair ascent includes lifting and swing phases, where the lifting phase includes a powered knee extension and a powered ankle push-off. The finite state model for stair descent includes yielding and swing states, where the swing states include providing a powered plantarflexion of the powered ankle joint and the yielding states include providing a resistive and passive plantarflexion of the powered ankle joint. 1. A method of operating a lower limb device comprising a powered knee joint and a powered ankle joint , the method comprising:configuring the lower limb device to a state of a finite state model for a current activity mode comprising a stair ascent mode;based on real-time sensor information for the lower limb device, transitioning the lower limb device from a current state to a subsequent state in the finite state model when a pre-defined criteria for transitioning to the subsequent state is met; andrepeating the transitioning until the current activity mode changes,wherein the finite state model for the stair ascent mode comprises a series of states, the series of states comprising at least one lifting state and at least one swing state, wherein the at least one lifting state comprises a powered knee extension and a powered ankle push-off.2. The method of claim 1 , wherein the at least one lifting state comprise a powered knee straightening state and an ankle push off portion state claim 1 , and wherein the at least one swing state ...

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Номер записи: 13

28-11-2013 дата публикации

SELF-ALIGNING PROSTHESIS WITH HYDRAULIC ACTUATORS

Номер: US20130317628A1

Автор: Boone David Alan, Love Lonnie, Macomber Ben Gilbert

Принадлежит:

A hydraulic device includes a first plate that pivots in a first direction, a second plate that pivots in a second direction orthogonal to the first direction, a first hydraulic system comprising a first cylinder and piston, a second cylinder and piston and, channels connecting the first cylinder to the second cylinder, the first hydraulic system filled with hydraulic fluid, wherein the transfer of fluid between the first cylinder and second cylinder pivots the first plate, and a second hydraulic system comprising a third cylinder and piston, a fourth cylinder and piston and, channels connecting the third cylinder to the fourth cylinder, the second hydraulic system filled with hydraulic fluid, wherein the transfer of fluid between the third cylinder and fourth cylinder pivots the second plate. 1. A hydraulic device , comprising:a first plate that pivots in a first direction;a second plate that pivots in a second direction orthogonal to the first direction;a first hydraulic system comprising a first cylinder and piston, a second cylinder and piston, and channels connecting the first cylinder to the second cylinder, the first hydraulic system being filled with hydraulic fluid, wherein the transfer of fluid between the first cylinder and second cylinder pivots the first plate; anda second hydraulic system comprising a third cylinder and piston, a fourth cylinder and piston, and channels connecting the third cylinder to the fourth cylinder, the second hydraulic system being filled with hydraulic fluid, wherein the transfer of fluid between the third cylinder and fourth cylinder pivots the second plate.2. The hydraulic device of claim 1 , wherein the first piston and the second piston make contact with the first plate at locations diagonal to each other claim 1 , and the third piston and the fourth piston make contact with the second plate at locations diagonal to each other.3. The hydraulic device of claim 1 , wherein the first plate has a first cam on which a shaft of ...

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Номер записи: 14

30-01-2014 дата публикации

FRICTION CLUTCH PLATE, FRICTION CLUTCH AND DRIVING FORCE TRANSMISSION APPARATUS

Номер: US20140027236A1

Автор: Ando Hiroyuki, ANDO Junji, TSUDA Takuya

Принадлежит: JTEKT CORPORATION

A clutch plate arranged to face a contact object so as to be relatively rotatable and relatively movable includes a contact surface being able to contact the contact object via lubricant and a minute groove open at the contact surface and formed of a plurality of groove portions having a predetermined groove pitch. A ratio of a contact area of the contact surface to an area obtained by adding an opening area of the minute groove to the contact area of the contact surface is 90% to 96% in an initial state. 1. A friction clutch plate that is arranged to face a contact object so as to be relatively rotatable and relatively movable , comprising:a contact surface configured to be able to contact the contact object via lubricant; anda minute groove open at the contact surface and formed of a plurality of groove portions having a predetermined groove pitch, whereina ratio of a contact area of the contact surface to an area obtained by adding an opening area of the minute groove to the contact area of the contact surface is 90% to 96% in an initial state.2. The friction clutch plate according to claim 1 , wherein the minute groove is set such that the groove pitch of the plurality of groove portions falls within the range of 400 μm to 600 μm.3. The friction clutch plate according to claim 1 , wherein the contact surface faces a diamond-like carbon coating provided on the contact object.4. The friction clutch plate according to claim 1 , wherein an area of the groove portions in cross section perpendicular to an extending direction of the groove portions is set to fall within the range of 200 μmto 700 μm.5. The friction clutch plate according to claim 1 , wherein the plurality of groove portions of the minute groove are independent of each other and are arranged concentrically as annular recessed grooves.6. The friction clutch plate according to claim 1 , wherein each of the groove portions has a trapezoidal shape in cross section perpendicular to an extending direction of ...

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Номер записи: 15

06-02-2014 дата публикации

MODULAR PROSTHETIC DEVICES AND PROSTHESIS SYSTEM

Номер: US20140039644A1

Автор: Dillingham Timothy R.

Принадлежит:

An adjustable prosthesis system for a residual limb includes: an adjustable outer shell having an adjustable inner volume and an adjustable inner shape; at least one closure component attached to the adjustable outer shell and adapted to adjust at least one of the adjustable inner volume and the adjustable inner shape of the adjustable outer shell; an inner liner adapted to receive the residual limb and to be inserted in the adjustable inner volume of the adjustable outer shell; and an adjustable connector having a proximal end adjustably connected to a distal end of the adjustable outer shell and adapted to provide concurrently for a plurality of directional adjustments and/or angular adjustments of a position of the distal end of the adjustable outer shell relative to the proximal end of the adjustable connector, a distal end of the adjustable connector being adapted to connect to a prosthetic device. 1. An adjustable prosthesis system for a residual limb , comprising:an adjustable outer shell having an adjustable inner volume and an adjustable inner shape;at least one closure component attached to the adjustable outer shell and adapted to adjust at least one of the adjustable inner volume and the adjustable inner shape of the adjustable outer shell;an inner liner adapted to receive the residual limb and to be inserted in the adjustable inner volume of the adjustable outer shell; andan adjustable connector having a proximal end adjustably connected to a distal end of the adjustable outer shell and adapted to provide concurrently for a plurality of directional adjustments and/or angular adjustments of a position of the distal end of the adjustable outer shell relative to the proximal end of the adjustable connector, a distal end of the adjustable connector being adapted to connect to a shank or an other prosthetic device.2. An adjustable prosthesis system as in claim 1 , wherein the adjustable outer shell comprisesa first limb engaging panel, anda second limb ...

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Номер записи: 16

13-02-2014 дата публикации

POWERED ARTIFICIAL KNEE WITH AGONIST-ANTAGONIST ACTUATION

Номер: US20140046455A1

Автор: Herr Hugh M., Martinez-Villalpando Ernesto C., Weber Jeff Anthony

Принадлежит: Massachusetts Institute of Technology

A knee prosthesis comprises an agonist-antagonist arrangement of two series-elastic actuators in parallel, including a knee joint, flexion and extension actuators connected to the joint in parallel with a leg member, and a controller for independently energizing the actuators to control the movement of the knee joint and leg. The flexion actuator comprises the series combination of a flexion motor and a flexion elastic element and the extension actuator comprises the series combination of an extension motor and an extension elastic element. Sensors provide feedback to the controller. The flexion actuator and the extension actuator may be unidirectional, with the flexion and extension elastic elements being series springs. The extension actuator may alternatively be bidirectional, with the extension elastic element being a set of pre-compressed series springs. Alternatively, the flexion elastic element may be a non-linear softening spring and the extension elastic element may be a non-linear hardening spring. 19.-. (canceled)10. An artificial knee component , comprising:a) a mechanical knee joint;b) a first rotary actuator;c) a first linear screw connected to the first rotary actuator; andd) a link between the linear screw and the mechanical knee joint, whereby actuation of the first rotary actuator rotates the first linear screw which, in turn, causes the link to move linearly along a major longitudinal axis of the first linear screw and rotate the mechanical knee joint, thereby converting linear force on the link by the first linear screw to torque about the mechanical knee joint.11. The artificial knee component of claim 10 , wherein the first linear screw is a ball-screw and the link includes a first ball-nut threadably engaged with the first linear screw.12. The artificial knee component of claim 11 , wherein the link further includes a loop that extends between the first ball-nut and the mechanical knee joint claim 11 , whereby linear movement of the first ball ...

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Номер записи: 17

06-03-2014 дата публикации

Control System for Prosthetic Limb

Номер: US20140067083A1

Автор: Harshbarger Stuart D., Wenstrand Douglas S.

Принадлежит: THE JOHNS HOPKINS UNIVERSITY

A controller for a prosthetic device includes a processing section, an interface section connected to the processing section, and a power supply connected to both the processing section and the interface section. A dorsal indicator and a dorsal switch are disposed in a hand portion of the prosthetic device, and are both connected to the interface section. 1. A controller for a prosthetic device , comprising:a processing section;an interface section connected to the processing section;a power supply connected to the processing section and the interface section;a dorsal indicator disposed in a hand portion of the prosthetic device and connected to the interface section; anda dorsal switch disposed in the hand portion and connected to the interface section.2. The controller of claim 1 , further comprising a flex connect which connects the processing section to the interface section claim 1 , a processor; and', 'a memory connected to the processor., 'wherein the processing section comprises3. The controller of claim 2 , wherein the processor does not use any power when the prosthetic device is turned off4. The controller of claim 2 , whereinthe memory is implemented in a package-on-package configuration, andinterface section comprises a field programmable gate array.5. The controller of claim 1 , whereinthe interface section comprises a plurality of mating receptacles, and an interface debug mating receptacle; and', 'one or more mating receptacles for a thumb, an index finger, a middle finger, a ring finger and a little finger., 'said plurality of mating receptacles comprises6. The controller of claim 1 , wherein the interface section comprises:a controller area network bus;finger buses; andinput-output interfaces which connect the controller area network bus and the finger buses to one or more components of a plurality of components.7. The controller of claim 6 , wherein the plurality of components comprises a small motor controller claim 6 , a large motor controller ...

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Номер записи: 18

20-03-2014 дата публикации

NOVEL ENHANCED METHODS FOR MIMICKING HUMAN GAIT WITH PROSTHETIC KNEE DEVICES

Номер: US20140081423A1

Автор: Bisbee, III Charles R., PALMER Michael L.

Принадлежит: Freedom Innovations, LLC

The present invention relates to a prosthetic device including a prosthetic joint which accurately transitions between a loose mode and a stiff mode to more accurately mimic a human gait. The prosthetic joint includes a state controller which utilizes a sensor to detect prosthetic joint movement data, and compares it with prosthetic joint movement decision values to determine when a solenoid should be energized to place the prosthetic joint in the loose mode. An optimization unit connects to the prosthetic joint in a prosthetic joint system. The optimization unit generates a plurality of data files containing prosthetic joint movement data corresponding to an amputee walking without stumbling. By iteratively analyzing the prosthetic joint movement data, the optimization unit adjusts the prosthetic joint movement decision values to ensure that the prosthetic joint does not prematurely enter a stumble recovery state. 1. A prosthetic joint capable of selectively entering a stumble recovery state , the prosthetic joint comprising: detect prosthetic joint movement data;', 'determine a state of the prosthetic joint using the prosthetic joint movement data; and', 'analyze the prosthetic joint movement data and at least one prosthetic joint movement decision value to determine when the state of the prosthetic joint should enter a stumble recovery state, wherein the prosthetic joint movement data includes swing time data., 'a state controller programmed to2. The prosthetic joint of wherein the prosthetic joint movement data includes moment data claim 1 , knee angle data claim 1 , or knee angle rate of change data.3. The prosthetic joint of wherein the at least one prosthetic joint movement decision value includes a maximum leg swing time.4. The prosthetic joint of wherein the at least one prosthetic joint movement decision value includes a maximum knee angle or a maximum knee angle rate of change.5. The prosthetic joint of wherein the at least one prosthetic joint movement ...

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Номер записи: 19

27-03-2014 дата публикации

CONTROLLING POWERED HUMAN AUGMENTATION DEVICES

Номер: US20140088727A1

Автор: Barnhart Christopher Eric, Bolger Adrienne, Casler, Garlow David Adams, Girzon Gary, Han Zhixiu, Herr Hugh Miller, JR. Richard J., McCarthy Jennifer T.

Принадлежит: iWalk, Inc.

In a communication system for controlling a powered human augmentation device, a parameter of the powered device is adjusted within a gait cycle by wirelessly transmitting a control signal thereto, whereby the adjusted parameter falls within a target range corresponding to that parameter. The target range is selected and the device parameters are controlled such that the powered device can normalize or augment human biomechanical function, responsive to a wearer's activity, regardless of speed and terrain and, in effect, provides at least a biomimetic response to the wearer of the powered device. 1. A communication system for interfacing with a powered human augmentation device , the system comprising:a wireless transmitter for adjusting a parameter of the powered device within a gait cycle by transmitting a control signal thereto, whereby the adjusted parameter falls within a target range corresponding to that parameter, providing at least a biomimetic response to a wearer of the powered device.2. The system of claim 1 , wherein the parameter is selected from the group consisting of net work claim 1 , toe-off angle claim 1 , peak power applied by the powered device claim 1 , and timing of the peak power relative to the gait cycle.3. The system of claim 1 , wherein the target range corresponding to the parameter is a function of at least one of ambulation speed and ambulation pattern.4. The system of claim 1 , wherein adjusting the parameter is based at least in part on at least one of ambulation speed and ambulation pattern.5. The system of claim 1 , wherein adjusting the parameter is based at least in part on at least one of terrain and activity.6. The system of claim 5 , wherein the activity is selected from the group consisting of walking on level ground claim 5 , walking on uneven ground claim 5 , walking upslope claim 5 , walking downslope claim 5 , ascending stairs claim 5 , and descending stairs.7. The system of claim 1 , wherein adjusting the parameter is ...

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Номер записи: 20

09-01-2020 дата публикации

Electromagnetic locking element for a joint orthosis or a joint prosthesis

Номер: US20200008960A1

Автор: Arno Mecklenburg

Принадлежит: Ottobock SE and Co KGaA

An electromagnetic locking element for locking a joint orthosis or joint prosthesis such as a knee orthosis or knee prosthesis. The electromagnetic locking element includes a bistable solenoid with at least one coil and at least one permanent magnet, a pin, which can be retracted and extended with the aid of the solenoid for locking the joint, one or several electrical energy stores such as capacitors, and an electrical control system, which, with the aid of semiconductor switches, discharges the energy store or stores via the at least one coil of the solenoid in such a way that the pin is extended.

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Номер записи: 21

27-01-2022 дата публикации

Clutch Assembly

Номер: US20220025936A1

Автор: Davis Brad

Принадлежит:

A clutch assembly comprising a sealed clutch and a spacer. The clutch is connected to the spacer and the spacer is connectable to a flywheel along a common axis and the spacer facilitates connection of the clutch to the flywheel in at least two different axially spaced positions. A connection ring can connect the spacer connection to flywheel. 1. A clutch assembly comprising:a sealed clutch, anda spacer,the clutch being connected to the spacer and the spacer being connectable to a flywheel along a common axis and the spacer facilitating connection of the clutch to the flywheel in at least two different axially spaced positions.2. A clutch assembly according to claim 1 , the spacer being formed as a ring.3. A clutch assembly according to claim 1 , the spacer having an inside generally cylindrical surface defining an opening and the clutch being receivable within the opening and axial spacing of the clutch relative to the flywheel being achieved by axial movement of the clutch within the opening relative to the spacer.4. A clutch assembly according to claim 3 , the spacer having opposite axial facing leading and trailing surfaces claim 3 , the flywheel being connectable to the leading surface of the spacer claim 3 , the leading surface or the trailing surface having a configuration that facilitates connection of the clutch to the flywheel in at least two different axially spaced positions.5. A clutch assembly according to claim 1 , a connector being interposed between the spacer and the flywheel for connecting the spacer to the flywheel.6. A clutch assembly according to claim 5 , the connector being a connection ring and the spacer having opposite axial facing leading and trailing surfaces claim 5 , the connection ring being connectable to the leading or trailing surface of the spacer and the leading or trailing surface to which the connection ring is connected having a configuration that facilitates connection of the spacer to the flywheel in at least two different ...

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Номер записи: 22

21-01-2016 дата публикации

Structure of Tumble-Resistant Knee Joint

Номер: US20160015531A1

Автор: Cheng Chia-Pao, Wu Hsiang-Ming

Принадлежит:

A tumble-resistant knee joint includes a knee carrier, a main base, and a coupler connected to each other. The knee carrier includes a connection piece and two connection bars to couple to an upper portion of the main base. The coupler includes coupler recesses formed in one side thereof corresponding to extensions of grips to receive push blocks therein and has two coupling bolts extending through a lower portion of the main base to allow the coupler connected to the lower portion of the main base. The main base receives therein an axle, which is provided, respectively and in sequence from a center thereof toward two opposite ends, with two bearings, two one-way bearings, two bushings, and two grips. The grips include extensions that cooperate with the push blocks to selectively grip or release the axle. The one-way bearings constrain the rotation of the axle to be in one direction.

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Номер записи: 23

21-01-2021 дата публикации

METHOD FOR CONTROLLING AN ARTIFICIAL ORTHOTIC OR PROSTHETIC KNEE JOINT

Номер: US20210015639A1

Автор: Albrecht-Laatsch Erik

Принадлежит: Ottobock SE & Co. KGaA

The invention relates to a method for controlling an artificial orthotic or prosthetic knee joint, on which a lower leg component is arranged and which is assigned a resistance device having at least one actuator, by means of which the bending resistance is modified depending on sensor data that is determined during use of the orthotic or prosthetic knee joint by means of a sensor, wherein the absolute angle of the lower leg component is determined exclusively by means of at least one inertial sensor, the angle determined is compared with at least one threshold value, and the bending resistance is modified when the threshold value is reached. 12453317457. A method for controlling an artificial orthotic or prosthetic knee joint () , on which a lower leg component ( , ) is arranged and which is provided with a resistance device () having at least one actuator () , by means of which the bending resistance is modified as a function of sensor data which are determined by means of a sensor () during use of the orthotic or prosthetic joint , characterized in that the absolute angle of the lower leg component ( , ) is determined exclusively by means of at least one inertial sensor () , the angle determined is compared with at least one threshold value , and the bending resistance is modified when the threshold value is reached.245725. The method as claimed in claim 1 , characterized in that an angular velocity of the lower leg component ( claim 1 , ) is calculated from the sensor data of the at least one inertial sensor () claim 1 , and the bending resistance is reduced only when the angular velocity is not equal to zero.3745. The method as claimed in or claim 1 , characterized in that the absolute angle is determined exclusively by means of one or more inertial sensors () claim 1 , which is or are fastened on the lower leg component ( claim 1 , ) or on an orthotic or prosthetic component fastened distally thereon.4. The method as claimed in one of the preceding claims ...

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Номер записи: 24

15-01-2015 дата публикации

METHOD AND DEVICE FOR CONTROLLING AN ARTIFICIAL ORTHOTIC OR PROSTHETIC JOINT

Номер: US20150018971A1

Автор: KALTENBORN Sven, KAMPAS Philipp, PAWLIK Roland, Seyr Martin

Принадлежит: OTTO BOCK HEALTHCARE PRODUCTS GMBH

The invention relates to a device and method for controlling an artificial orthotic or prosthetic joint of a lower extremity, comprising a resistance unit with which at least one actuator is associated, via which the bending and/or stretching resistance is varied depending on sensor data. During the use of the joint, status information is provided via sensors. According to the invention, the resistance is increased in the standing phase or while standing from a starting value depending on the ground reaction force up to a locking point of the joint. 1. A method for controlling an orthotic or prosthetic joint of a lower extremity with a resistance device , which is assigned at least one actuator , the method comprising:adjusting at least one of a bending and stretching resistance with the at least one actuator in dependence on sensor data pertaining to a state of the joint being provided by way of sensors during use of the joint;increasing the resistance during a standing phase or when standing from an initial value up until a locking of the joint in dependence on a measured ground reaction force;after the resistance is increased, reducing the resistance to the initial value in dependence on at least one of a distance of a ground reaction force from a reference point on a connection part on the joint and a changing of the distance.2. The method as claimed in claim 1 , wherein the resistance is increased continuously during the standing phase when there is increasing loading.3. The method as claimed in claim 1 , wherein the resistance is increased when a threshold value is reached or exceeded.4. The method as claimed in claim 1 , wherein the resistance is increased in dependence on least one of a joint angle and inertial angle of the connection part of the joint.5. The method as claimed in claim 1 , wherein the resistance is increased or locked in dependence on the distance of the ground reaction force from a reference point on the connection part of the joint or in ...

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Номер записи: 25

15-01-2015 дата публикации

METHOD FOR CONTROLLING AN ARTIFICIAL ORTHOTIC OR PROSTHETIC KNEE JOINT

Номер: US20150018972A1

Автор: Albrecht-Laatsch Erik

Принадлежит: OTTO BOCK HEALTHCARE GMBH

The invention relates to a method for controlling an artificial orthotic or prosthetic knee joint, on which a lower leg component is arranged and which is assigned a resistance device having at least one actuator, by means of which the bending resistance is modified depending on sensor data that is determined during use of the orthotic or prosthetic knee joint by means of a sensor, wherein the absolute angle of the lower leg component is determined exclusively by means of at least one inertial sensor, the angle determined is compared with at least one threshold value, and the bending resistance is modified when the threshold value is reached. 1. A method for controlling an artificial orthotic or prosthetic knee joint , on which a lower leg component is arranged , the method comprising:providing the orthotic or prosthetic knee joint with at least one inertial sensor and a resistance device, the resistance device having at least one actuator;determining an absolute angle of the lower leg component exclusively using sensor data from the at least one inertial sensor;comparing the determined absolute angle with at least one threshold value;modifying a bending resistance with the resistance device when the threshold value is reached.2. The method as claimed in claim 1 , further comprising:calculating an angular velocity of the lower leg component using the sensor data of the at least one inertial sensor;reducing the bending resistance only when the angular velocity is not equal to zero.3. The method as claimed in claim 1 , wherein the absolute angle is determined exclusively using one or more inertial sensors claim 1 , which is or are fastened on the lower leg component or on an orthotic or prosthetic component fastened distally thereon.4. The method as claimed in claim 1 , wherein the absolute angle is determined using at least one of 2D or 3D magnetic field sensors claim 1 , 2D or 3D acceleration sensors claim 1 , and 1D claim 1 , 2D or 3D gyroscopes.5. The method as ...

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Номер записи: 26

17-01-2019 дата публикации

MULTI-AREA PISTON

Номер: US20190017556A1

Автор: HEUVER Bradley Ronald

Принадлежит:

A transmission includes a case defining a bore and a piston disposed within the bore. The piston and the case define a fluid chamber in fluid communication with a fluid source. The piston includes an annular piston body defining a plurality of auxiliary bores angularly spaced along the annular piston body about a central axis of the annular piston body. The piston further includes a plurality of auxiliary pistons disposed within the auxiliary bores. The piston body and the auxiliary pistons have rear surfaces in communication with the fluid chamber. The transmission further includes a clutch pack disposed opposite the piston from the fluid chamber. The clutch pack includes at least one friction plate, at least one separator plate, and at least one separator spring. The transmission further includes a return spring adapted to bias the annular piston body in a direction away from the clutch pack.

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Номер записи: 27

28-01-2016 дата публикации

MOTION ASSISTANCE APPARATUS AND METHOD OF CONTROLLING THE SAME

Номер: US20160022440A1

Автор: CHO Joon-Kee, Choi Byung-kwon, HA Taesin, ROH ChangHyun, SHIM Youngbo

Принадлежит:

A motion assistance apparatus may include a first fixing member to be fixed to a portion of a user, a second fixing member to be fixed to another portion of the user, a driving source provided in the first fixing member, a power transmitting member connected between the driving source and the second fixing member, a sensing portion configured to sense a fixing state of the first fixing member or the second fixing member, and a controller configured to control the driving source based on information received from the sensing portion. 1. A motion assistance apparatus comprising:a first fixing member configured to attach to a first portion of a user;a second fixing member configured to attach to a second portion of the user;a driving source attached to the first fixing member;a power transmitting device configured to transmit power from the driving source to the second fixing member;a sensor configured to sense a fixing state of one or more of the first fixing member and the second fixing member; anda controller configured to control the transmission of the power by the driving source based on information received from the sensor.2. The motion assistance apparatus of claim 1 , wherein at least one of the first fixing member and the second fixing member comprises:a first fixing portion and a second fixing portion, the first fixing portion configured to fasten and separate from the second fixing portion.3. The motion assistance apparatus of claim 2 , wherein the sensor comprises:a first conductor and a second conductor in the first fixing portion and the second fixing portion, respectively, the first conductor configured to selectively connect to the second conductor to form a current path therebetween based on the fixing state, and whereinthe controller is configured to control the driving source based on whether the current path is formed between the first conductor and the second conductor.4. The motion assistance apparatus of claim 2 , wherein a first one of the ...

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Номер записи: 28

25-01-2018 дата публикации

CLUTCH ASSEMBLY HAVING A HYDRAULICALLY ACTUATE PISTON AND LATCHING DEVICE

Номер: US20180023635A1

Автор: Kaminsky Lawrence A., LITTLEFIELD Joseph R., Neelakantan Vijay A.

Принадлежит:

A clutch assembly having a first clutch member, a second clutch member axially slidable in a first axial direction to engage the first clutch member and in a second axial direction to disengage from the first clutch member, a spring biasing the second clutch member in one of the axial directions, a piston actuatable to move the second clutch member in the other of the axial directions, thereby overcoming a biasing force of the spring, and a latching device to selectively lock the piston in at least one of the first axial direction and second axial direction. The latching device includes a selectively retractable locking pin. The piston has an external surface defining a slot to receive the locking pin, thereby locking the piston in the first position or the second position. A method of operating the clutch assembly is provided. 1. A clutch assembly for a transmission , comprising:a first clutch member extending along a central axis;a second clutch member co-axially spaced from the first clutch member, wherein the second clutch member is axially slidable in a first axial direction to engage the first clutch member and in a second axial direction to disengage from the first clutch member;a spring biasing the second clutch member in one of the first axial direction and the second axial direction;a piston selectively actuatable to move the second clutch member in the other of the first axial direction and the second axial direction, thereby overcoming a biasing force of the spring; anda latching device to selectively lock the piston in at least one of a first position when the second clutch member is in the first axial direction and in a second position when the second clutch member is in the second axial direction.2. The clutch assembly of claim 1 ,wherein the latching device includes a selectively retractable locking pin; andwherein the piston has an external surface defining a slot to receive the locking pin, thereby locking the piston in the first position or the ...

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Номер записи: 29

02-02-2017 дата публикации

ALIGNABLE COUPLING ASSEMBLY FOR CONNECTING TWO PROSTHETIC LIMB COMPONENTS

Номер: US20170027718A1

Автор: Hurley Garrett Ray, Williams Jesse Robert

Принадлежит:

An alignable coupling assembly embodiment for coupling distal and proximal prosthetic components includes a pair of parallel circular plates rotatably disposed in the circular receptacle of a support plate. The circular plates are configured such that they can be unpressed or a pressed. The unpressed condition allows rotation of the paired plates and the pressed condition prevents such rotation by way of a first friction lock. The paired circular plates further have a rectangular slot into which a longitudinal connector is slidably disposed, and which is subject to a second friction lock that prevents sliding when the connector is pulled distally. Rotational movement of the plates and sliding movement of the connector in the slot cooperate to allow its positioning at any point within an anterior-posterior/lateral medial grid centered on the longitudinal axis of the proximal prosthetic component. A distal pull on the longitudinal connector engages both first and second friction locks. 1. A method of aligning a distal prosthetic component with a proximal prosthetic component , the method comprising:coupling the distal prosthetic component and the proximal prosthetic component together, wherein the proximal prosthetic component comprises a distally directed alignable coupling assembly configured to couple to the distal prosthetic component, and wherein the alignable coupling assembly comprises:a coupling assembly base comprising a pair of circular plates and a support plate, the support plate comprising a circular receptacle in which the pair of circular plates is rotatably supported; anda longitudinal connector supported by the pair of circular plates, the longitudinal connector comprising a distal end with a distally-directed coupling feature for the distal prosthetic component; androtating the pair of circular plates within the support plate to position the longitudinal connector at a desired position within a medial-lateral/anterior-posterior circular grid centered ...

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Номер записи: 30

04-02-2016 дата публикации

CONTROL OF A PASSIVE PROSTHETIC KNEE JOINT WITH ADJUSTABLE DAMPING

Номер: US20160030203A1

Автор: Boiten Herman, PUSCH Martin, ZARLING Sven

Принадлежит: OTTO BOCK HEALTHCARE GMBH

The invention relates to the control of a passive prosthetic knee joint with adjustable damping in the direction of flexion such that a prosthetic unit attached to the knee joint can be adapted for climbing stairs. 112-. (canceled)13. A method for initiating and implementing a stairclimbing mode in a passive prosthetic knee joint connected to a prosthetic leg unit including a prosthetic foot , the method comprising:detecting with at least one sensor of the passive prosthetic knee joint a lift phase of the prosthetic foot, the at least one sensor generating sensor data;reducing a flexion damping level of the passive prosthetic knee joint in the lift phase in response to the sensor data to a reduced level that is below a level used by the passive prosthetic knee joint for walking on level ground;detecting a lowering phase of the prosthetic foot;increasing the flexion damping level of the passive prosthetic knee joint in the lowering phase from the reduced level to an increased level that is above the level that is used for walking on level ground; andmaintaining the increased level until a straightened hip is detected when in the lowering phase.14. The method of claim 13 , wherein in the lowering phase claim 13 , an extension damping level is increased to an increased level that is above a level that is used for walking on level ground.15. A method of controlling a passive prosthetic knee joint with adjustable damping in the direction of flexion such that a prosthetic unit that is connected to the passive prosthetic knee joint claim 13 , and that includes an artificial foot claim 13 , can climb stairs claim 13 , the method comprising:detecting with at least one sensor of the passive prosthetic knee joint a low-torque lift of the prosthetic foot, the at least one sensor generating sensor data, andlowering the flexion damping in a lift phase in response to the sensor data to below a level that is used for walking on level ground;increasing extension damping and flexion ...

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Номер записи: 31

24-04-2014 дата публикации

CONTROLLING POWER IN A PROSTHESIS OR ORTHOSIS BASED ON PREDICTED WALKING SPEED OR SURROGATE FOR SAME

Номер: US20140114437A1

Автор: Barnhart Christopher Eric, Casler, Girzon Gary, Han Zhixiu, Herr Hugh Miller, JR. Richard J.

Принадлежит: iWalk, Inc.

In some embodiments of a prosthetic or orthotic ankle/foot, a prediction is made of what the walking speed will be during an upcoming step. When the predicted walking speed is slow, the characteristics of the apparatus are then modified so that less net-work that is performed during that step (as compared to when the predicted walking speed is fast). This may be implemented using one sensor from which the walking speed can be predicted, and a second sensor from which ankle torque can be determined. A controller receives inputs from those sensors, and controls a motor's torque so that the torque for slow walking speeds is lower than the torque for fast walking speeds. This reduces the work performed by the actuator over a gait cycle and the peak actuator power delivered during the gait cycle. In some embodiments, a series elastic element is connected in series with a motor that can drive the ankle, and at least one sensor is provided with an output from which a deflection of the series elastic element can be determined. A controller determines a desired torque based on the output, and controls the motor's torque based on the determined desired torque. 1. An ankle-foot prosthesis or orthosis apparatus comprising:a shank member;a foot member that is operatively configured with respect to the shank member so as to support walking and permit the foot member to plantarflex and dorsiflex with respect to the shank member;a motor configured to plantarflex the foot member with respect to the shank member;a series elastic element connected between at least one of (a) the motor and the shank member and (b) the motor and the foot member;at least one first sensor having an output from which a walking speed can be estimated; anda controller configured to control the motor's torque, based on the output of the at least one first sensor, so that the motor's torque for slow walking speeds is lower than the motor's torque for fast walking speeds.2. The apparatus of claim 1 , wherein ...

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Номер записи: 32

24-04-2014 дата публикации

POWERED LEG PROSTHESIS AND CONTROL METHODOLOGIES FOR OBTAINING NEAR NORMAL GAIT

Номер: US20140114438A1

Автор: Goldfarb Michael, IV Frank Charles, Mitchell Jason, Sup, Varol Huseyin Atakan, Withrow Thomas J.

Принадлежит: VANDERBILT UNIVERSITY

A powered leg prosthesis includes powered knee joint comprising a knee joint and a knee motor unit for delivering power to the knee joint. The prosthesis also includes a prosthetic lower leg having a socket interface coupled to the knee joint and a powered ankle joint coupled to the lower leg opposite the knee joint comprising an ankle joint and an ankle motor unit to deliver power to the ankle joint. The prosthesis further includes a prosthetic foot coupled to the ankle joint, at least one sensor for measuring a real-time input, and at least one controller for controlling movement of the prosthesis based on the real-time input. 1. A method of controlling a powered joint in a leg prosthesis , comprising:determining a passive joint torque component based on a passive function of at least one measured input, the measured input comprising at least one of a measured angle of a powered joint in the leg prosthesis or a measured angular velocity of the powered joint;determining an active joint torque component based on an active function of at least one measured external force on the leg prosthesis and independent of at least one measured input:computing an output torque for at the least one powered joint based on a superposition of the passive joint torque component and the active joint torque component.2. The method of claim 1 , wherein the at least one measured input further comprises at least one of a force or a torque exerted by a user on the leg prosthesis.3. The method of claim 1 , wherein the at least one measured input further comprises a measurement of an inertial movement of the leg prosthesis.4. The method of claim 1 , wherein the passive function is single-valued and odd function of at least one of the measured joint angle or angular velocity.6. The method of claim 5 , wherein the linear stiffness claim 5 , the linear damping coefficient claim 5 , and the equilibrium angle are selected based on a known biomechanical behavior of a healthy joint.7. The method of ...

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Номер записи: 33

02-02-2017 дата публикации

DIRECTLY ACTUATABLE CLUTCH WITH VENTILATION GEOMETRY

Номер: US20170030418A1

Автор: Daikeler René, Hellgoth Rene

Принадлежит:

The invention relates to a friction clutch for a drivetrain of a motor vehicle, having a contact plate that is movable relative to a pressure plate and a clutch disk to engage and disengage the clutch, and having an actuating element that influences the contact plate displacement position and is non-rotatably connected to the contact plate. The actuating element has at least one fluid diverting section which, in an operating state of the clutch, introduces a cooling fluid into the interior of the clutch to cool the contact plate, pressure plate, and/or clutch disk. The actuating element is preferably designed as a rigid component and for a system consisting of such a friction clutch and a transmission bell housing. 110-. (canceled)11. A friction clutch for a drivetrain of a motor vehicle , comprising:a contact plate operatively arranged to displace relative to a pressure plate and a clutch disk to engage and disengage the clutch; and,an actuating element non-rotatably connected to the contact plate and operatively arranged to displace the contact plate, the actuating element including at least one first fluid diverting section which, in an operating state of the friction clutch, introduces a cooling fluid into the interior of the friction clutch to cool the contact plate, pressure plate, and/or clutch disk, wherein the actuating element is designed as a rigid component.12. The friction clutch as recited in claim 11 , wherein the actuating element is designed as a cup-shaped load transfer plate.13. The friction clutch as recited in claim 11 , wherein the actuating element is produced from a cold-formable metal material.14. The friction clutch as recited in claim 11 , wherein the actuating element is implemented as a sheet metal part of a metal material.15. The friction clutch as recited in claim 11 , wherein the at least one first fluid diverting section comprises a diverting blade arranged as an integral part of the actuating element claim 11 , wherein the diverting ...

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Номер записи: 34

04-02-2021 дата публикации

HYDRAULIC PROSTHETIC KNEE WITH RESISTANCE CHANGE MECHANISM AT HYPEREXTENSION

Номер: US20210030568A1

Автор: Drews Jacob, Taszreak Aaron

Принадлежит:

A prosthetic knee includes a hydraulic resistance system with an extension hydraulic circuit and a flexion hydraulic circuit. The flexion hydraulic circuit includes a switchable resistance assembly with a mechanical switch. The mechanical switch has an engaged position and a released position. The switchable resistance assembly provides a first level of hydraulic resistance when the mechanical switch is in the released position and a second level of hydraulic resistance when the mechanical switch is in the engaged position, the second level being less than the first level. The mechanical switch moves to the engaged position when the hydraulic resistance element reaches a predetermined extension position and moves back to the released position fluid flow falls below a predetermined threshold. 1. A prosthetic knee , comprising:an upper thigh portion;a lower shin portion;a joint connecting the upper and lower portions, the joint allowing the shin portion to articulate, between an extended position wherein the thigh portion and the shin portion are generally aligned along a leg axis and a bent position wherein the shin portion is angled rearwardly with respect to the thigh portion, movement from the extended position toward the bent position defined as flexion and movement from the bent position toward the extended position defined as extension; and a hydraulic resistance element having a movable piston defining a first fluid chamber on a first side of the piston and a second fluid chamber on a second side of the piston, a size of the first chamber increasing and a size of the second chamber reducing during flexion and the size of the first chamber decreasing and the second chamber increasing during extension;', 'an extension hydraulic circuit connecting the first and second fluid chambers, the extension hydraulic circuit having a check valve operable to allow flow from the first fluid chamber to the second fluid chamber and to substantially block flow from the second ...

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Номер записи: 35

11-02-2016 дата публикации

ORTHOPEDIC DEVICE COMPRISING A JOINT AND METHOD FOR CONTROLLING SAID ORTHOPEDIC DEVICE

Номер: US20160038312A1

Автор: KAMPAS Philipp, PAWLIK Roland

Принадлежит: OTTO BOCK HEALTHCARE PRODUCTS GMBH

The application relates to an orthopedic device comprising a joint and to a method for controlling an orthopedic device, which has an upper part and a lower part supported pivotally thereon, wherein upper connecting means for fixation onto a limb are disposed on the upper part, and a locking device, which prevents a bending motion of the upper part relative to the lower part, wherein the locking device is configured such that it can be actively actuated by the user of the orthopedic device, wherein a control device is associated with the locking device, the control device being attached to the device with at least one sensor and automatically unlocking or locking the locking device as a function of the sensor signal. 1. An orthopedic device with a joint , comprising:an upper part and a lower part mounted thereon such that it can pivot about the knee joint, wherein an upper connection member configured to secure the device to a limb is arranged on the upper part, and which device also has a locking device configured to control a bending movement of the upper part relative to the lower part, wherein a control device is associated with the locking device, is connected to at least one sensor attached to the device and configured to generate a sensor signal, and automatically unlocks or locks the locking device as a function of the sensor signal, wherein the at least one sensor includes an angle sensor to register an angle between the upper part and the lower part, and a position sensor that determines a spatial orientation of at least the upper part, the joint being locked while the user is standing up and the joint is extended, and the bending movement is locked and an extension movement of the upper part relative to the lower part is released during an entire sit-to-stand movement of the joint if a fixed joint angle is exceeded;wherein an initial sitting position associated with the sit-to-stand movement is determined when there is an approximate right angle between ...

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Номер записи: 36

08-02-2018 дата публикации

ENERGY-HARVESTING MESOFLUIDIC IMPULSE PROSTHESIS

Номер: US20180036148A1

Автор: Boone David Alan, Corson Nicholas Roy, Lincoln Lucas Samuel

Принадлежит: ORTHOCARE INNOVATIONS LLC

A prosthetic joint including a hydraulic system, comprising: at least one chamber; at least one accumulator configured to store hydraulic fluid at a high pressure; at least one reservoir configured to store hydraulic fluid at a low pressure; one or more fluid flow paths connecting the chamber to the accumulator and the reservoir, flow controllers in the fluid flow paths, and fluid distributed throughout the hydraulic system; a load-determining sensor; a displacement-determining sensor; and a microprocessor configured to actuate one or more flow controllers based upon a load determining sensor input, a displacement-determining sensor input, a product of the load-determining sensor input and the displacement-determining sensor input, any time derivative thereof, or any combination thereof, wherein one or more flow controllers are configured to control displacing fluid from the chamber to the accumulator during periods of a threshold negative work, and one or more flow controllers are configured to control displacing fluid from the accumulator to the chamber to perform positive work. 1. A method of harvesting and selectively reapplying energy to a prosthetic joint , comprising: at least one chamber;', 'at least one accumulator configured to store hydraulic fluid at a high pressure;', 'at least one reservoir configured to store hydraulic fluid at a low pressure;', 'one or more fluid flow paths connecting the chamber to the accumulator and the reservoir, flow controllers in the fluid flow paths, and fluid distributed throughout the chamber, accumulator and reservoir;', 'a load-determining sensor;', 'a displacement-determining sensor;', 'a microprocessor configured to actuate one or more flow controllers based upon a load-determining sensor input, a displacement-determining sensor input, a product of the load-determining sensor input and the displacement-determining sensor input, any time derivative thereof, or any combination thereof;, 'providing a prosthetic joint, ...

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Номер записи: 37

08-02-2018 дата публикации

Energy Storing Prosthetic Knee Actuator

Номер: US20180036150A1

Автор: Smit Gerhardus, VALLERY Heike

Принадлежит:

An energy storing prosthetic knee actuator and method of using such an energy storing prosthetic knee actuator comprising a hydraulic or pneumatic cylinder with a piston and a piston rod, wherein the piston and the hydraulic or pneumatic cylinder are movable with respect to each other, an energy storage accumulator and a control valve provided in piping connecting the hydraulic or pneumatic cylinder with the energy storage accumulator for controlling an exchange of fluid or gas between the accumulator and the cylinder, wherein the cylinder and the piston are connected to a user's upper leg and lower leg respectively or vice versa, and wherein the actuator is arranged to close the control valve when the user is sitting down and to open the control valve when the user is going to stand or is standing up. 1. An energy storing prosthetic knee actuator comprising a hydraulic or pneumatic cylinder with a piston and a piston rod , wherein the piston and the hydraulic or pneumatic cylinder are movable with respect to each other and are connected or connectable to a user's upper leg and lower leg respectively or vice versa , and further comprising an energy storage accumulator and at least one control valve provided in piping connecting the hydraulic or pneumatic cylinder with the energy storage accumulator for controlling an exchange of fluid or gas between the energy storage accumulator and the hydraulic or pneumatic cylinder , wherein the control valve is a single control valve and automatically operable and connected to at least one sensor for detecting whether the user is standing up.2. The energy storing prosthetic knee actuator according to claim 1 , wherein the cylinder is a pneumatic cylinder.3. The energy storing prosthetic knee actuator according to claim 1 , wherein the control valve is arranged to close off the piping when the sensor detects that the user is seated and to open the piping when the sensor detects that the user is standing up.4. The energy storing ...

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Номер записи: 38

09-02-2017 дата публикации

Coupling, drive assembly and associated method

Номер: US20170037912A1

Автор: Nicholas Chase Bower, Zachary Alan Bower

Принадлежит: Regal Beloit America Inc

According to an embodiment of the invention, a drive coupling for connecting to a drive is provided. The drive coupling is adapted to removably couple a load to a power source. The drive coupling includes a body and a plurality of components. The components are operably interconnected with each other. The components have a first arrangement in which the components transmit torque from the power source to the load and a second arrangement in which the components transmit no significant torque from the power source to the load. A first of the plurality of components is adapted to translate along its center of rotation relative to a second of the plurality of components from a first position in which the components define the first arrangement to a second position in which the components define the second arrangement.

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Номер записи: 39

24-02-2022 дата публикации

Linear actuator assembly, bionic digit and prosthetic hand

Номер: US20220054282A1

Автор: Mark Hunter

Принадлежит: Epic Inventing Inc

A linear actuator assembly housed within a bionic digit, which comprises a base portion, an intermediate portion and an end portion; the intermediate portion pivotally connected to the base portion at one end and pivotally connected to the end portion at the opposite end. The linear actuator assembly includes a drive mechanism; a carriage mechanism having a longitudinal axis (L); a transmission member for transmitting rotational force from the drive mechanism to the carriage mechanism; and a drive member coupled to the carriage mechanism. The carriage mechanism converts the rotational force into an axial force applied to the drive member, moving the drive member along the axis as the carriage mechanism rotates. The drive member is pivotally connected to the end portion. The intermediate portion houses the linear actuator, which further includes a first thrust bearing between the carriage mechanism and the drive mechanism, and the second thrust bearing between the carriage mechanism and a seat provided within the intermediate portion, the carriage mechanism confined between the thrust bearings at each end.

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Номер записи: 40

24-02-2022 дата публикации

DRY DOUBLE CLUTCH FOR AN ELECTRIC AXLE, AND ELECTRIC AXLE COMPRISING THE DRY DOUBLE CLUTCH

Номер: US20220056964A1

Автор: Ortmann Simon, Wagner Philippe, Wimmer Doris Maria

Принадлежит: SCHAEFFLER TECHNOLOGIES AG & CO. KG

A dry double clutch for an electric axle includes a clutch unit and an actuation unit. The clutch unit has a first clutch device for connecting a drive shaft with a first output shaft, and a second clutch device, coaxial to the first clutch device, for connecting the drive shaft with a second output shaft. The actuation unit has a first actuation device for actuating the first clutch device, and a second actuation device for actuating the second clutch device. The first clutch device is closed when the first actuation device is not actuated, and the second clutch device is open when the second actuation device is not actuated. The first clutch device is arranged to be opened by a first pressure force from the first actuation device, and the second clutch device is arranged to be closed by a second pressure force from the second actuation device. 110.-. (canceled)11. A dry double clutch for an electric axle of a vehicle , comprising:a main axis; a first clutch device for connecting a drive shaft with a first output shaft; and', 'a second clutch device for connecting the drive shaft with a second output shaft, the second clutch device arranged coaxial to the first clutch device with respect to the main axis;, 'a clutch unit comprising a first actuation device for actuating the first clutch device; and', the first clutch device is closed when the first actuation device is not actuated;', 'the second clutch device is open when the second actuation device is not actuated;', 'the first clutch device is arranged to be opened by a first pressure force from the first actuation device applied axially with respect to the main axis; and', 'the second clutch device is arranged to be closed by a second pressure force from the second actuation device applied axially with respect to the main axis., 'a second actuation device for actuating the second clutch device, wherein], 'an actuation unit comprising12. The dry double clutch of further comprising a first spring element for ...

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Номер записи: 41

07-02-2019 дата публикации

ROTOR CARRIER AND LOCKING DIAPHRAGM SPRING

Номер: US20190040917A1

Автор: PERSINGER Justin

Принадлежит:

A hybrid drive module, comprising an annular diaphragm spring having an inner surface and one or more fingers protruding radially inward from the inner surface and a carrier hub concentric with the diaphragm spring and connected to a rotor of an electric motor and a cover of a torque converter, the carrier hub having an outer surface with one or more retention grooves configured to interlock with the one or more fingers of the diaphragm spring to inhibit axial movement of the diaphragm spring relative to the carrier hub. 1. A hybrid drive module , comprising:an annular diaphragm spring having an inner surface and one or more fingers protruding radially inward from the inner surface;a carrier hub concentric with the diaphragm spring and connected to a rotor of an electric motor and a cover of a torque converter, the carrier hub having an outer surface with one or more retention grooves configured to interlock with the one or more fingers of the diaphragm spring to inhibit axial movement of the diaphragm spring relative to the carrier hub.2. The hybrid drive module of claim 1 , wherein the one or more fingers are configured to interlock with the one or more retention grooves of the carrier hub upon compression claim 1 , rotation claim 1 , and release of the diaphragm spring against the carrier hub.3. The hybrid drive module of claim 1 , wherein the one or more retention grooves are configured to mitigate rotation between the carrier hub and diaphragm spring when the one or more retention grooves are in contact with the one or more fingers.4. The hybrid drive module of claim 3 , wherein the one or more retention grooves each include a first passageway configured to receive one of the fingers claim 3 , a second passageway generally perpendicular from the first passageway claim 3 , and third passageway generally parallel with the first passageway.5. The hybrid drive module of claim 3 , wherein the one or more retention grooves each include a first passageway configured ...

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Номер записи: 42

01-05-2014 дата публикации

CONTROLLING TORQUE IN A PROSTHESIS OR ORTHOSIS BASED ON A DEFLECTION OF SERIES ELASTIC ELEMENT

Номер: US20140121782A1

Автор: Barnhart Christopher Eric, Casler, Garlow David Adams, Girzon Gary, Han Zhixiu, Herr Hugh Miller, JR. Richard J.

Принадлежит: iWalk, Inc.

In some embodiments of a prosthetic or orthotic ankle/foot, a prediction is made of what the walking speed will be during an upcoming step. When the predicted walking speed is slow, the characteristics of the apparatus are then modified so that less net-work that is performed during that step (as compared to when the predicted walking speed is fast). This may be implemented using one sensor from which the walking speed can be predicted, and a second sensor from which ankle torque can be determined. A controller receives inputs from those sensors, and controls a motor's torque so that the torque for slow walking speeds is lower than the torque for fast walking speeds. This reduces the work performed by the actuator over a gait cycle and the peak actuator power delivered during the gait cycle. In some embodiments, a series elastic element is connected in series with a motor that can drive the ankle, and at least one sensor is provided with an output from which a deflection of the series elastic element can be determined. A controller determines a desired torque based on the output, and controls the motor's torque based on the determined desired torque. 1. An ankle-foot prosthesis or orthosis apparatus comprising:a shank member;a foot member that is operatively configured with respect to the shank member so as to support walking and permit the foot member to plantarflex and dorsiflex with respect to the shank member;a motor configured to plantarflex the foot member with respect to the shank member;a series elastic element connected between at least one of (a) the motor and the shank member and (b) the motor and the foot member;a bumper coupled to at least one of the shank member and the foot member;at least one sensor having an output from which a deflection of the series elastic element and a compression of the bumper can be determined, the at least one sensor comprising a sensor that senses a position of the motor and a sensor that senses an angle of the foot member ...

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Номер записи: 43

03-03-2022 дата публикации

MEDICAL APPLIANCE FOR A JOINT OF A PERSON AND METHOD FOR OPERATING A MEDICAL APPLIANCE

Номер: US20220062010A1

Автор: LEHNER Hans-Peter, NAUMANN Marco

Принадлежит: medi GmbH & Co KG

Medical appliance (a, b, c) for a joint () of a person (), which has at least two parts () which are to be placed on the joint () and can be moved with respect to one another by the joint () and at least one detection device () for detecting a relative movement of the parts (), wherein the medical appliance (a, b, c) comprises an evaluation device (), having: 199991101111131116a,b,c. Medical appliance ( , ) for a joint () of a person () , which has at least two parts () which are to be placed on the joint () and can be moved with respect to one another by the joint () and at least one detection device () for detecting a relative movement of the parts () , characterized by an evaluation device () , having:{'b': 17', '13', '5', '1', '9', '9', '9', '9, 'i': a,', 'b,', 'c, 'a determination unit () for determining, from detection data of the detection device (), a range of movement () of the joint (), which range of movement is actually used when the medical appliance (, ) is worn,'}{'b': 18', '5', '6, 'a comparison unit () for comparing the range of movement () used with a desired range of movement (), and'}{'b': 19', '10', '6', '9', '9', '9', '9', '20', '10, 'i': a,', 'b,', 'c, 'a support unit () for determining support information guiding the person () to the most extensive use possible of the desired range of movement (), said support information being dependent on the result of the comparison, wherein the medical appliance (, ) further has an output device () for outputting the support information to the person ().'}29999999911442525a,b,ca,b,c. Medical appliance ( claim 1 , ) according to claim 1 , characterized in that the medical appliance ( claim 1 , ) has at least one stocking-like enclosure section which is to be pulled over the joint () and/or wrapped around the joint () as a bandage and/or designed as a garment and/or as a belt system () and/or at least one articulated guide element () claim 1 , in particular at least two hinged claim 1 , rigid articulated ...

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Номер записи: 44

14-02-2019 дата публикации

LOWER LIMB PROSTHESIS

Номер: US20190046336A1

Автор: Harris Graham, Lang Stephen Terry, Moser David, PAINTER Robert Michael Andrew, Zahedi Mir Saeed

Принадлежит:

A prosthetic ankle has an ankle joint body (A) constituting a shin component and a foot component (). The ankle joint body (A) is pivotally connected to the foot component () by a first pivotal connection () defining a medial-lateral ankle joint flexion axis. The ankle joint body (A) also forms the cylinder of an ankle joint piston and cylinder assembly with a superior-inferior central axis, the cylinder housing a piston () with upper and lower piston rods (A, B). The lower piston rod (B) is pivotally connected to the foot component () at a second pivotal connection (). As the ankle joint body (A) pivots about the ankle joint flexion axis, the piston () moves substantially linearly in the cylinder formed by the ankle joint body. The cylinder is divided into upper and lower chambers (A, B). These chambers are linked by an hydraulic circuit () incorporating passages (A, B) in the ankle joint body (A), and an energy conversion device in the form of a slave piston and cylinder assembly () having a piston (P) and piston rods (R) which project beyond the cylinder (C) of the assembly (). 16-. (canceled)7. An ankle joint prosthesis comprising a shin member and a foot member and constructed such that the foot member is able to execute a flexion movement relative to the shin member , and a flexion control system for controlling the relative flexion movement between the shin member and the foot member , wherein the flexion control system comprises:an hydraulic circuit including an hydraulic ankle flexion control device interconnecting the shin member and foot member, and an energy conversion device for converting fluid flow energy in the hydraulic circuit resulting from ankle flexion into mechanical movement and vice versa; andan energy input arranged to receive energy into the ankle flexion control system from an external energy source;and wherein the ankle joint prosthesis further comprises at least one sensor for sensing a kinetic or kinematic parameter of locomotion and a ...

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Номер записи: 45

23-02-2017 дата публикации

MODEL-BASED NEUROMECHANICAL CONTROLLER FOR A ROBOTIC LEG

Номер: US20170049587A1

Автор: Eilenberg Michael Frederick, Geyer Hartmut, Herr Hugh M.

Принадлежит:

A model-based neuromechanical controller for a robotic limb having at least one joint includes a finite state machine configured to receive feedback data relating to the state of the robotic limb and to determine the state of the robotic limb, a muscle model processor configured to receive state information from the finite state machine and, using muscle geometry and reflex architecture information and a neuromuscular model, to determine at least one desired joint torque or stiffness command to be sent to the robotic limb, and a joint command processor configured to command the biomimetic torques and stiffnesses determined by the muscle model processor at the robotic limb joint. The feedback data is preferably provided by at least one sensor mounted at each joint of the robotic limb. In a preferred embodiment, the robotic limb is a leg and the finite state machine is synchronized to the leg gait cycle. 1. A method for controlling at least one robotic limb joint of a robotic limb , the method comprising the steps of:providing a neuromuscular model including a muscle model and reflex control equations;receiving feedback data relating to a measured state of the robotic limb;determining, using the feedback data, the muscle model and the reflex control equations of the neuromuscular model, at least one torque command to be applied to the at least one robotic limb joint; andapplying the at least one torque command at the at least one robotic limb joint.2. The method of claim 1 , further including receiving the at least one torque command from the neuromuscular model with a torque control system claim 1 , and wherein the at least one torque command is applied by the torque control system.3. The method of claim 2 , wherein the robotic limb includes at least one sensor mounted to the robotic limb claim 2 , and the feedback data is provided by the at least one sensor mounted to the robotic limb.4. The method of claim 3 , wherein the neuromuscular model and the torque control ...

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Номер записи: 46

14-02-2019 дата публикации

VEHICLE TRANSMISSION CLUTCH ENGAGEMENT CONTROL SYSTEM

Номер: US20190048947A1

Автор: FORD Stuart N., Fujii Yuji, HIPPALGAONKAR Rohit, Kucharski Joseph F., Meyer Jason, Pietron Gregory Michael, WANG Qi

Принадлежит:

A vehicle includes a transmission and a controller. The transmission has clutches that are configured to establish multiple speed ratios, including a first clutch. The first clutch has a measured drag torque distribution. The measured drag torque distribution has a median and a standard deviation. The controller is programmed to increase a pressure at a rate to engage the first clutch and to increase the rate in response to a measured first clutch torque exceeding the median by a predetermined multiple of the standard deviation. 1. A vehicle comprising:a transmission having clutches configured to establish multiple speed ratios, including a first clutch having a measured drag torque distribution with a median and a standard deviation; anda controller programmed to increase a pressure at a rate to engage the first clutch and to increase the rate in response to a measured first clutch torque exceeding the median by a predetermined multiple of the standard deviation.2. The vehicle of claim 1 , wherein the multiple of the deviation ranges between two and four standard deviations of a normal distribution.3. The vehicle of claim 1 , wherein the median is non-zero.4. The vehicle of claim 1 , wherein the transmission includes a second clutch having a second measured drag torque distribution with a second median and a second standard deviation claim 1 , and where the controller is further programmed t claim 1 , decrease a pressure at a second rate to disengage the second clutch and to decrease the second rate in response to a measured second clutch torque decreasing below a predetermined multiple of the second standard deviation.5. The vehicle of claim 1 , wherein the engagement of the first clutch corresponds to an upshift of the transmission.6. The vehicle of claim 1 , wherein the engagement of the first clutch corresponds to a downshift of the transmission.7. The vehicle of claim 1 , wherein the engagement of the first clutch corresponds to a transition of the ...

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Номер записи: 47

13-02-2020 дата публикации

DRIVETRAIN OF AN ELECTRICALLY DRIVEN VEHICLE AND ELECTRICALLY DRIVEN VEHICLE

Номер: US20200049205A1

Автор: Echtler Peter

Принадлежит:

A drivetrain of an electrically driven vehicle has a frictionally engaging normally closed clutch with conical friction elements, which rest against each other in pairs in a closed position and transmit torque. In addition, an electrically driven vehicle with such a drivetrain is provided. 1. Drivetrain of an electrically driven vehicle , with a frictionally engaging clutch , wherein the clutch is a normally closed clutch with conical friction elements , which rest against each other in pairs in a closed position and transmit torque.2. Drivetrain according to claim 1 , wherein the clutch comprises at least one spring element claim 1 , which holds the clutch in the normally closed position.3. Drivetrain according to claim 1 , wherein the cone angle of the friction elements is less than 30°.4. Drivetrain according to claim 1 , wherein the cone angle of the friction elements lies in the range of from 3° to 15°.5. Drivetrain according to claim 1 , wherein at least one of the conical friction elements have an organic or metallic friction lining.6. Drivetrain according to claim 1 , wherein all of the conical friction elements have an organic or metallic friction lining.7. Drivetrain according to claim 1 , wherein the clutch is a wet clutch.8. Drivetrain according to claim 1 , characterized by a gearbox claim 1 , in which the clutch is mechanically integrated.9. Drivetrain according to claim 8 , wherein the gearbox is a multispeed gearbox claim 8 , wherein the clutch is provided for the actuation of at least one drive gear.10. Drivetrain according to claim 9 , wherein the gearbox has a main drive gear and at least one secondary drive gear claim 9 , wherein the normally closed clutch is provided for the actuation of the main drive gear and at least one normally open clutch is provided for the actuation of the at least one secondary drive gear.11. Drivetrain according to claim 8 , wherein the gearbox is a single-speed gearbox.12. Electrically driven vehicle comprising a ...

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Номер записи: 48

03-03-2016 дата публикации

PNEUMATIC ELECTROMYOGRAPHIC EXOSKELETON

Номер: US20160058647A1

Автор: MADDRY Conor J.

Принадлежит:

The invention relates to a pneumatic, electromyographic exoskeleton. The exoskeleton includes a rigid frame designed to be secured to at least a portion of a user's body, a number of pneumatic actuators, each fixed to opposite sides of a hinge on the rigid frame; a storage tank designed to store compressed air to power the pneumatic actuators; valves coupled to the pneumatic actuators to control activation of the pneumatic actuators; electromyographic (EMG) sensors for sensing EMG signals in skeletal muscles of the user; differential amplifiers for amplifying each EMG signal to generate an amplified EMG signal; and a microprocessor programmed to receive the amplified EMG signals and to output activation signals for the pneumatic actuators. 1. A pneumatic , electromyographic exoskeleton comprising:a rigid frame designed to be secured to least a portion of a body of a user, the rigid frame comprising a plurality of hinges corresponding to joints of the user;a plurality of pneumatic actuators, each pneumatic actuator being fixed to opposite sides of a hinge on the rigid frame;a storage tank designed to store compressed air to power the pneumatic actuators;a plurality of valves coupled to the pneumatic actuators to control activation of the pneumatic actuators;a plurality of electromyographic (EMG) sensors for sensing EMG signals in skeletal muscles of the user, each EMG sensor comprising a first contact pad and a second contact pad for sensing an EMG signal in a skeletal muscle of the user, and a differential amplifier for amplifying the EMG signal to generate an amplified EMG signal; receive the amplified EMG signal;', 'detect whether the amplified EMG signal is outside of a threshold voltage region;', 'detect whether the amplified EMG signal has been within the threshold voltage region for a defined delay period; and', 'output an activation signal for a pneumatic actuator beginning when the amplified EMG signal is outside the threshold voltage region and ending when ...

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Номер записи: 49

01-03-2018 дата публикации

PUMP SYSTEM

Номер: US20180055659A1

Автор: JONASSON Hafsteinn, Marlin Dana Stewart, SANDAHL David

Принадлежит:

A prosthetic system includes first and second parts rotatable relative to one another about a joint. The first and second parts are adapted to form at least part of a weight bearing connection between a prosthetic foot and a socket. A pump system includes a pump mechanism operatively connected to the first and second parts. Rotation of the first part and/or the second part about the joint moves the pump mechanism between an original configuration in which the volume of a fluid chamber defined by the pump mechanism is zero or near-zero, and an expanded configuration in which the volume of the fluid chamber is increased. 1. A prosthetic system comprising:first and second parts rotatable relative to one another about a joint, the first and second parts adapted to form at least part of a weight bearing connection between a prosthetic foot and a socket; anda pump system including a pump mechanism operatively connected to the first and second parts such that relative rotation between the first and second parts about the joint moves the pump mechanism between an original configuration in which the volume of a fluid chamber defined by the pump mechanism is zero or near-zero, and an expanded configuration in which the volume of the fluid chamber is increased.2. The prosthetic system of claim 1 , further comprising a movable member having a rigid configuration including a first end attached to the pump mechanism and a second end portion attached to the first part claim 1 , wherein rotation of the movable member moves the pump mechanism between the original and expanded configurations.3. The prosthetic system of claim 1 , wherein the pump mechanism includes a housing and a membrane attached to the housing such that the fluid chamber is defined between the membrane and the housing.4. The prosthetic system of claim 3 , wherein deformation of the membrane increases the volume of the fluid chamber.5. The prosthetic system of claim 3 , wherein the housing is attached to a side ...

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Номер записи: 50

01-03-2018 дата публикации

DIAGNOSTIC AND THERAPEUTIC APPROACHES FOR SPINAL DEFORMITIES

Номер: US20180055660A1

Автор: Boyette Jeremy, MacMahon John, SAUL Tom, STIKELEATHER Luke

Принадлежит:

Wearable devices for spinal deformities, including a wearable brace configured to be worn about a patient's torso, at least one inflation bladder carried directly or indirectly by an inner surface of the brace, and positioned such that inflation of the bladder with a fluid applies a pressure to generate a force on the patient at a targeted location, at least one force sensor carried directly or indirectly by a surface of the brace, to measure the force independent of the bladder, and the force sensor adapted to output a signal indicative of a force applied on the sensor. 1. A force and/or pressure sensing pad adapted for use in spinal diagnostic and therapeutic methods , comprising:an inflatable bladder adapted to be in communication with a fluid source for at least one of inflation and deflation;a force sensor co-located with the inflatable bladder and adapted to sense force, the force sensor in communication with a communication component, wherein the communication component is adapted to at least one of store data and upon availability wirelessly communicate information indicative of the sensed force to a remote device.2. The force sensing pad of claim 1 , further comprising an adhesive substance and a removable cover on at least one portion of the pad claim 1 , the removable cover adapted to be removed from the pad to expose the adhesive substance so that the pad can be adhered to a surface and at least temporarily adhered thereto with the adhesive substance.3. The force sensing pad of claim 2 , wherein the adhesive substance is adapted such that the pad can be removed from the surface if needed claim 2 , such as for replacing with a second pad.4. A force and/or pressure sensing pad adapted for use in spinal diagnostic and therapeutic methods claim 2 , comprisingan inflatable bladder adapted to be in communication with a fluid source for at least one of inflation and deflation;a force sensor co-located with the inflatable bladder and adapted to sense force;an ...

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Номер записи: 51

05-03-2015 дата публикации

ROBUST SWING LEG CONTROLLER UNDER LARGE DISTURBANCES

Номер: US20150066156A1

Автор: Desai Ruta P., Geyer Hartmut

Принадлежит: CARNEGIE MELLON UNIVERSITY, a Pennsylvania Non-Profit Corporation

Local swing leg control was developed that takes advantage of segment interactions to achieve robust leg placement under large disturbances while generating trajectories and joint torque patterns similar to those observed in human walking and running. The results suggest the identified control as a powerful alternative to existing swing leg controls in humanoid and rehabilitation robotics. Alternatively, a detailed neuromuscular model of the human swing leg was developed to embody the control with local muscle reflexes. The resulting reflex control robustly places the swing leg into a wide range of landing points observed in human walking and running, and it generates similar patterns of joint torques and muscle activations. The results suggest an alternative to existing swing leg controls in humanoid and rehabilitation robotics which does not require central processing. 1. A method for placing an artificial foot connected to a prosthetic or robotic limb on to a target point , wherein the method comprises:{'sub': t', 's, 'providing the prosthetic or robotic limb with a rotatable artificial hip joint, a rotatable artificial knee joint, an artificial thigh having length (l) coupled to the rotatable artificial hip joint and the rotatable artificial knee joint, an artificial shank having length (l) coupled to the rotatable artificial knee joint,'}providing a hip torque actuator coupled to the rotatable artificial hip joint, and a knee torque actuator coupled the rotatable artificial knee joint;{'sub': h', 'k, 'providing a controller in communication with: i. a rotatable artificial hip joint sensor to measure a current hip rotation angle (φ), ii. a rotatable artificial knee joint sensor to measure a current knee rotation angle (φ), iii. the hip torque actuator to apply a positive or a negative torque to the rotatable artificial hip joint, and iv. the knee torque actuator to apply a positive or a negative torque to the rotatable artificial knee joint;'}{'sub': tgt', 'clr ...

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Номер записи: 52

22-05-2014 дата публикации

Modularized knee joint cushioning structure

Номер: US20140142722A1

Автор: Chih Hsuan Liang

Принадлежит: Ken Dall Enterprise Co Ltd

A modularized knee joint cushioning structure includes a top joint seat connectable to a thigh, a friction adjustment assembly including an adjustment screw and coupled, in combination with a spring assembly, to the top joint seat and a bottom joint seat, a caliper forming an axle hole having a circumference forming a gap extending to the outside and including a bearing surface formed on an outside surface thereof, a main body having a main axle connecting the caliper and the top joint seat, and a bottom joint seat having a top end forming, at one side thereof, a brake block and coupled to the main body and the spring assembly. The spring assembly may alternatively used with a fixing assembly to limit the spring force of the spring assembly. The spring assembly is replaceable by a hydraulic assembly or a pneumatic assembly to form alternative cushioning structures.

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Номер записи: 53

08-03-2018 дата публикации

ADJUSTMENT-FREE MULTI-STAGE PROSTHESIS AIR CYLINDER

Номер: US20180064561A1

Автор: SHEN Hsin-Fa

Принадлежит:

An adjustment-free multi-stage prosthesis air cylinder is used in a prosthesis joint and has an air cylinder body, a piston assembly slidably mounted on the air cylinder body, a first check valve mounted in the piston, and a multi-stage air pressure valve mounted inside a lower air way of the air cylinder body. The multi-stage air pressure valve automatically cushions movements of the piston assembly without being adjusted whenever a user of the prosthesis joint walks slowly or quickly, so to allow the user to feel comfortable. 1. An adjustment-free multi-stage prosthesis air cylinder comprising: a top portion;', 'a bottom portion;', 'an air chamber defined inside the air cylinder body; and', 'a lower air way formed in the bottom portion of the air cylinder body and having two ends respectively connected to the air chamber and an outside of the air cylinder body;, 'an air cylinder body having'} a piston rod mounted through the top portion of the air cylinder body and having an inner end;', 'a piston attached to the inner end of the piston rod, mounted in the air chamber of the air cylinder body, and dividing the air chamber into an upper air chamber and a lower air chamber; and', 'an upper air way formed in the piston rod and having two ends respectively connected to the outside of the air cylinder body and the upper air chamber;, 'a piston assembly slidably mounted on the air cylinder body and having'}a first check valve disposed in the piston and having two ends respectively connected to the upper air chamber and the lower air chamber, and the first check valve only allowing air inside the upper air chamber to flow into the lower air chamber; and [ a top part having a top surface and a side surface;', 'a protrusion part axially protruding from the top part and having a bottom surface and a side surface, wherein the bottom surface of the protrusion part and the top surface of the top part are oppositely defined on the first component;', 'a main channel formed ...

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Номер записи: 54

08-03-2018 дата публикации

WEARING MODULE AND MOTION ASSISTANCE APPARATUS INCLUDING THE SAME

Номер: US20180064570A1

Автор: KIM Jeonghun, KIM Yong Jae, LEE Deok Won

Принадлежит:

A wearing module and a motion assistance apparatus including the same is disclosed, wherein the wearing module may include a base frame having a predetermined curved form to cover a body portion of a user, the base frame formed by a rigid material, a middle frame connected to the base frame and formed by a flexible material, the middle frame disposed in a longitudinal direction perpendicular to the base frame, and a connecting member extended from both end portions of the base frame to cover an edge of the middle frame, and bent to correspond to a deformation of the middle frame. 1. A wearing module comprising:a base frame having a curved shape such that the base frame is configured to cover a body portion of a user, the base frame including a rigid material, the base frame including two end portions;a middle frame connected to the base frame and extending longitudinally in a first direction perpendicular to the base frame, the middle frame including a flexible material; anda connecting member extending in the first direction from the end portions of the base frame and connected to edges of the middle frame, the connecting member configured to bend in response to a deformation of the middle frame caused by pressure applied thereto.2. The wearing module of claim 1 , further comprising:a supporting member extending in the first direction, the supporting member configured to support the middle frame in response to the pressure applied to the middle frame.3. The wearing module of claim 2 , wherein the middle frame comprises:a center portion extending from the base frame in the first direction; andat least one side portion extending in a second direction perpendicular to the first direction.4. The wearing module of claim 3 , wherein the at least one side portion comprises:at least one arm connected in a middle thereof to the center portion such that the at least one arm symmetrically extends in the second direction from the center portion.5. The wearing module of claim 4 ...

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Номер записи: 55

11-03-2021 дата публикации

Tunable Actuator Joint Modules Having Energy Recovering Quasi-Passive Elastic Actuators with Internal Valve Arrangements

Номер: US20210069891A1

Автор: Maclean Brian J., Myers Michael, Olivier Marc X., Smith Fraser M.

Принадлежит:

A method of facilitating switching of a quasi-passive elastic actuator of a tunable actuator joint module of a robotic system between an inelastic state and an elastic state comprising configuring a quasi-passive elastic actuator to be operable with a primary actuator of the tunable actuator joint module to selectively apply an augmented torque to assist the primary actuator in rotation of a joint of the tunable actuator joint module. The method further comprises configuring an elastic component of the quasi-passive actuator to comprise a first vane device and second vane device rotatable relative to each other within a housing, supporting a valve assembly about the axis of rotation of the joint through the first vane device, and configuring a shunt circuit to facilitate fluid flow between compression and expansion chambers through the valve assembly. The method can further comprise configuring the valve assembly with a valve device disposed in an opening of a shaft of the first vane device, the valve device being actuatable between an open position to open the shunt circuit and a closed position to close the shunt circuit. 1. A method of facilitating switching of a quasi-passive elastic actuator of a tunable actuator joint module of a robotic system between an inelastic state and an elastic state , the method comprising:configuring a quasi-passive elastic actuator to be operable with a primary actuator of the tunable actuator joint module to selectively apply an augmented torque to assist the primary actuator in rotation of a joint of the tunable actuator joint module about an axis of rotation;configuring an elastic component of the quasi-passive actuator to comprise a first vane device and second vane device rotatable relative to each other within a housing, the first vane device and second vane device defining, at least in part, a compression chamber and an expansion chamber;supporting a valve assembly about the axis of rotation of the joint through the first ...

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Номер записи: 56

11-03-2021 дата публикации

Tunable Actuator Joint Modules Having Energy Recovering Quasi-Passive Elastic Actuators with Internal Valve Arrangements

Номер: US20210069892A1

Автор: Maclean Brian J., Myers Michael, Olivier Marc X., Smith Fraser M.

Принадлежит:

A robotic system for a robotic limb configured to recover energy for minimizing power consumption of the robotic system, comprising a first support member, a second support member, and a quasi-passive elastic actuator rotatably coupling the first and second support members to define a joint of the robotic system rotatable about an axis of rotation defining a degree of freedom. The quasi-passive elastic actuator can comprise a first vane device and a second vane device, the first vane device and second vane device being rotatable relative to each other within the housing and defining, at least in part, a compression chamber and an expansion chamber. The system can further comprise a valve assembly, the valve assembly comprising a valve device disposed through an opening of the first vane device along the axis of rotation, and a shunt circuit facilitating fluid flow between the compression and expansion chambers through the valve assembly. The valve assembly is operable to position the valve device in an open position to open the shunt circuit to place the quasi-passive elastic actuator in an inelastic state, and to position the valve device in a closed position to close the shunt circuit to place the quasi-passive elastic actuator in an elastic state. 1. A robotic system for a robotic limb configured to recover energy for minimizing power consumption of the robotic system , comprising:a first support member;a second support member; and a housing coupled to the first support member;', 'a first vane device supported by the housing and coupled to the second support member;', 'a second vane device coupled to the housing and interfaced with the first vane device, the first vane device and second vane device being rotatable relative to each other within the housing and defining, at least in part, a compression chamber and an expansion chamber;', 'a valve assembly located and operable at the joint of the robotic system, the valve assembly comprising a valve device disposed ...

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Номер записи: 57

24-03-2022 дата публикации

PROSTHETIC KNEE WITH A RECTIFICATION HYDRAULIC SYSTEM

Номер: US20220087835A1

Автор: Byars Jonathan M., Glidden, IV Robert M., PALMER Michael L., Prince Stephen W., Quintero Hugo A.

Принадлежит:

Described here are prosthetic systems, devices, and methods of use therefor. Generally, a prosthesis may be configured to set a resistance to rotation of a prosthetic joint based on a phase of gait. The prosthesis may include a first cylinder, a first piston slidable within the first cylinder, a fluid sump, and a fluid circuit. The fluid circuit may include a plurality of interconnected fluid channels having a unidirectional variable-resistance valve and a set of check valves that are configured to provide unidirectional flow through the valve during piston compression and extension. 1. A prosthesis , comprising:a first cylinder comprising a first cylinder port and a second cylinder port;a first piston slidable within the first cylinder;a fluid sump comprising a sump port, and a first fluid channel comprising a first channel inlet, a first channel outlet, and a unidirectional variable-resistance valve configured to set a variable resistance to fluid flow through the first fluid channel;', 'a second fluid channel comprising a second channel inlet, a second channel outlet, and a second channel check valve;', 'a third fluid channel comprising a third channel inlet, a third channel outlet, and a third channel check valve;', 'a fourth fluid channel comprising a fourth channel inlet, a fourth channel outlet, and a fourth channel check valve;', 'a fifth fluid channel comprising a fifth channel inlet, a fifth channel outlet, and a fifth channel check valve;', 'a first intersection comprising the first channel inlet, the second channel outlet, and the fifth channel outlet;', 'a second intersection comprising the first cylinder port, the second channel inlet, and the third channel outlet;', 'a third intersection comprising the sump port, the third channel inlet, and the fourth channel inlet; and', 'a fourth intersection comprising the second cylinder port, the fourth channel outlet, and the fifth channel inlet., 'a fluid circuit, comprising2. The prosthesis of claim 1 , ...

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Номер записи: 58

07-03-2019 дата публикации

COMPACT LIMB PROSTHESIS SYSTEM AND METHOD

Номер: US20190070020A1

Автор: Bartlett Brian

Принадлежит:

A prosthesis system can have an advantageous use over conventional prostheses in certain activities, including, but not limited to certain sports activities: The system includes, elastic member(s) that can store and release energy. The storing and releasing of energy in the elastic members happens during the movements made by the user and with the application of the user's own body weight while performing an activity. Implementations can also include a variety of routing configurations for the elastic member(s), as well as a variety of mounting points to integrate the elastic member(s) into the system, and/or a variety of adjustable anti-hyperextension members, and/or a variety of interchangeable shoes used for applicable activities. 1. A compact self-contained joint portion for a human prosthesis limb system , the compact self-contained joint portion comprising:a frame comprising relatively rotatable upper and lower frame members;an upper human interface portion coupled to the upper frame member proximate to a user and configured for coupling with a remainder of a natural human limb closer to the user's body than a previous location of a missing joint thereof;a lower artificial prosthetic appendage interface portion coupled to the lower frame member distal from the user's body and configured for coupling with an artificial prosthetic foot or other artificial prosthetic appendage intended to replace the user's missing human limb normally residing beyond the missing joint distal from the user's body;a hinge coupled between the relatively rotatable upper and lower frame members such that the proximate human interface portion and the distal artificial prosthetic appendage interface portion are pivotally movable with respect one to an other along a pivot axis when the relatively rotatable upper and lower frame members are rotated between a straightened state and a bent state;a rotatable cam member having an adjustable range of knee flexion effect, the cam member ...

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Номер записи: 59

19-03-2015 дата публикации

MOVEMENT ASSIST DEVICE

Номер: US20150081036A1

Автор: NAGATA Hideo, NAKANISHI Yoshie, OSAKI Mikio

Принадлежит: KABUSHIKI KAISHA YASKAWA DENKI

A movement assist device includes: a motor including a stator and a rotator; two arm members connected to each of the stator and the rotator and configured to be connected to a predetermined part of a body of an equipped person; a signal acceptor configured to accept a trigger signal that triggers a driving of the motor; and a driving controller configured to drive the motor so that the two arm members expand in response to a trigger that the signal acceptor accepts a first one of the trigger signal. 1. A movement assist device comprising:a motor including a stator and a rotator;two arm members connected to each of the stator and the rotator and configured to be connected to a predetermined part of a body of an equipped person;a signal acceptor configured to accept a trigger signal that triggers a driving of the motor; anda driving controller configured to drive the motor so that the two arm members expand in response to a trigger that the signal acceptor accepts a first one of the trigger signal.2. The movement assist device according to claim 1 , wherein the driving controller is configured to drive the motor so that the two arm members bend in response to a trigger that the signal acceptor accepts a second one of the trigger signal.3. The movement assist device according to claim 1 , wherein the motor and the two arm members are configured to be attachable to and removable from equipment used by the equipped person.4. The movement assist device according to claim 2 , wherein the motor and the two arm members are configured to be attachable to and removable from equipment used by the equipped person.5. The movement assist device according to further comprising a switch configured to output the first trigger signal and the second trigger signal according to a manual operation.6. The movement assist device according to further comprising a voice input unit configured to output the first trigger signal and the second trigger signal according to an inputted voice.7. ...

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Номер записи: 60

19-03-2015 дата публикации

PROSTHETIC AND ORTHOTIC DEVICES AND METHODS AND SYSTEMS FOR CONTROLLING THE SAME

Номер: US20150081037A1

Автор: Langlois David, Rittenhouse Matheson, Roy Yves

Принадлежит:

Prosthetic and/or orthotic devices (PODS), control systems for PODS and methods for controlling PODS are provided. As part of the control system, an inference layer collects data regarding a vertical and horizontal displacement of the POD, as well as an angle of the POD with respect to gravity during a gait cycle of a user of the POD. A processor analyzes the data collected to determine a locomotion activity of the user and selects one or more control parameters based on the locomotion activity. The inference layer may be situated between a reactive layer control module and a learning layer control module of the control system architecture. 1. A control system for controlling a motorized prosthetic or orthotic device (POD) that is actuatable about a joint , the control system comprising:a first inertial measurement unit (IMU) associated with a first segment of a user and configured to collect a first set of data, wherein the first set of data includes one or more measurements of at least one of a vertical displacement of the first segment, a horizontal displacement of the first segment, a torque associated with the first segment, and an absolute angle of the first segment with respect to gravity;a second IMU associated with a second segment of the POD and configured to collect a second set of data, wherein the second set of data includes one or more measurements of at least one of a vertical displacement of the second segment, a horizontal displacement of the second segment, a torque associated with the second segment, an absolute angle of the second segment with respect to gravity, and a net torque between the first segment and the second segment; and receive the first set of data from the first IMU and the second set of data from the second IMU, and', 'identify a locomotion activity of the user based on at least the first set of data and the second set of data., 'an inference layer in communication with the first IMU and the second IMU and configured to2. The ...

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Номер записи: 61

05-06-2014 дата публикации

Control system and method for a prosthetic knee

Номер: US20140156025A1

Автор: Charles R. Bisbee, Iii, Magnús Oddsson, Scott B. Elliott

Принадлежит: OSSUR HF

A prosthetic or orthotic system including a magnetorheological (MR) damper. The MR damper may be configured to operate in shear mode. In one embodiment, the MR damper includes a rotary MR damper. A controller is configured to operate the damper. A mobile computing device may be adapted to intermittently communicate configuration parameters to the controller. A method of configuring a prosthetic or orthotic system is also disclosed.

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Номер записи: 62

18-03-2021 дата публикации

CONE CLUTCH FOR VEHICLE

Номер: US20210079958A1

Автор: PARK Jong Yun

Принадлежит:

A cone clutch for a vehicle including a hub, a sleeve, and a clutch ring including a clutch cone, may further include a first friction ring for forming frictional force with the clutch cone, an internal middle cone, a second friction ring, an external middle cone, and a third friction ring, which are sequentially mounted to be brought into contact with each other. When the third friction ring is pressed by the sleeve and the third friction ring, the external middle cone, the second friction ring, the internal middle cone, the first friction ring, and the clutch cone are sequentially brought into close contact with each other, the distances from the hub in an axial direction gradually increase in the order of the first friction ring, the internal middle cone, the second friction ring, the external middle cone, and the third friction ring. 1. A cone clutch for a vehicle , the cone clutch apparatus comprising:a hub mounted on a rotation shaft such that an axial movement and a rotation of the hub are restrained;a sleeve mounted on an external side of the hub such that a rotation of the sleeve is restrained and an axial movement of the sleeve is allowed;a clutch ring mounted such that an axial movement of the clutch ring is restrained and a rotation of the clutch ring is allowed relative to the rotation shaft, the clutch ring being integrally mounted with a clutch cone protruding toward the hub such that an external diameter of the clutch cone is formed to decrease toward the hub;a first friction ring mounted between the clutch ring and the hub such that a rotation of the first friction ring is restrained relative to the hub, the first friction ring being configured to be pressed toward the clutch ring in an axial direction of the first friction ring to apply frictional force with the clutch cone;an internal middle cone mounted such that a rotation of the internal middle cone is restrained relative to the clutch ring, the internal middle cone including an internal side ...

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Номер записи: 63

18-03-2021 дата публикации

CONE CLUTCH FOR VEHICLE

Номер: US20210079959A1

Автор: GWAK Dong Woo, HONG Sung Wha, PARK Jong Yun, YUN Seong Eun

Принадлежит:

A cone clutch apparatus for the vehicle according to an exemplary embodiment of the present invention includes a hub, a sleeve, a clutch ring including a clutch cone, a first friction ring, an internal middle cone, a second friction ring, an external middle cone, and a third friction ring, wherein clutch ring passages allowing oil to be supplied are formed in the clutch cone, and inclined surfaces for increasing areas with which the oil passing through the clutch ring passages are in contact while moving are formed on the internal middle cone, the second friction ring, and the external middle cone. 1. A cone clutch apparatus for a vehicle , the cone clutch apparatus comprising:a hub mounted so that a movement of the hub in an axial direction of the hub and a rotation of the hub are restricted to a shaft;a sleeve mounted so that a rotation of the sleeve is restricted to an external side of the hub and a movement of the sleeve in the axial direction is allowed;a clutch ring mounted so that a movement of the clutch ring in the axial direction is restricted and a rotation of the clutch ring is allowed with respect to the shaft and integrally including a clutch cone protruding toward the hub and having an external diameter which is reducing;a first friction ring mounted between the clutch ring and the hub, mounted so that a rotation of the first friction ring is restricted with respect to the hub, and pressed toward the clutch ring along the axial direction to allow a frictional force to be applied between the first friction ring and the clutch cone;an internal middle cone mounted so that a rotation of the internal middle cone is restricted with respect to the clutch ring and having an internal side surface in contact with an external side surface of the first friction ring;a second friction ring mounted so that a rotation of the second friction ring is restricted with respect to the hub and having an internal side surface in contact with an external side surface of the ...

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Номер записи: 64

18-03-2021 дата публикации

CONE CLUTCH FOR VEHICLE

Номер: US20210079960A1

Автор: GWAK Dong Woo, HONG Sung Wha, PARK Jong Yun, YUN Seong Eun

Принадлежит:

A cone clutch for a vehicle may include a hub, a sleeve, a clutch ring including a clutch cone, a first friction ring, an internal middle cone, a second friction ring, an external middle cone, and a third friction ring, wherein friction members are provided on only any one of two contact surfaces between the clutch cone and the first friction ring, between the first friction ring and the internal middle cone, between the internal middle cone and the second friction ring, between the second friction ring and the external middle cone, and between the external middle cone and the third friction ring. 1. A cone clutch apparatus for a vehicle , the cone clutch comprising:a hub mounted so that movement of the hub in an axial direction of the hub and a rotation of the hub are restricted to a shaft;a sleeve mounted to the hub so that a rotation of the sleeve is restricted to an external side of the hub and movement of the sleeve in the axial direction is allowed;a clutch ring mounted so that movement of the clutch ring in the axial direction is restricted and a rotation of the clutch ring is allowed with respect to the shaft and integrally including a clutch cone protruding toward the hub and having an external diameter that is reducing;a first friction ring mounted between the clutch ring and the hub, mounted so that a rotation of the first friction ring is restricted with respect to the hub, and pressed toward the clutch ring along the axial direction to allow a frictional force to be applied between the first friction ring and the clutch cone;an internal middle cone mounted so that a rotation of the internal middle cone is restricted with respect to the clutch ring and having an internal side surface in contact with an external side surface of the first friction ring;a second friction ring mounted so that a rotation of the second friction ring is restricted with respect to the hub and having an internal side surface in contact with an external side surface of the ...

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Номер записи: 65

24-03-2016 дата публикации

DOUBLE WET CLUTCH MECHANISM FOR A TRANSMISSION SYSTEM

Номер: US20160084322A1

Автор: ARHAB Rabah, CAUMARTIN Laurent, RIBOT Herve

Принадлежит:

A double wet clutch mechanism for a transmission system, at least a first clutch and a second clutch respectively of the multiple-disc type, the first clutch having a first piston and the second clutch having a second piston, the first and second pistons being displaced in order to cause, in an engaged position, clamping of a multiple-disc assemblage against reaction means that are interposed axially between the multiple-disc assemblage of each of the first and second clutches, the assemblage respectively having friction discs that are rotationally connected respectively to the first driven shaft and to the second driven shaft respectively by an external disc carrier, each of the external disc carriers having a radial extension and an axial extension, the axial extension of one of the external disc carriers exhibiting a radial offset. 1201012130290309060121264114126611612135156131151137131141142131137137135. A double wet clutch mechanism () for a transmission system () , especially for a motor vehicle , having around a rotation axis (O) at least a first clutch (E) and a second clutch (E) respectively of the multiple-disc type , the first clutch (E) having at least a first piston () and the second clutch (E) having at least a second piston () , said first and second pistons ( , ) being displaced axially in opposite directions in order to cause , in an engaged position , clamping of a multiple-disc assemblage against reaction means () that are interposed axially between the multiple-disc assemblage of each of said first and second clutches (E , E) , said multiple-disc assemblage of the first clutch (E) and of the second clutch (E) respectively having friction discs ( , ) that are rotationally connected respectively to the first driven shaft (A) and to the second driven shaft (A) respectively by an external disc carrier ( , ) that constitutes the output element of the clutch (E , E) , each of said external disc carriers having a radial extension ( , ) and an axial ...

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Номер записи: 66

24-03-2016 дата публикации

TORQUE TRANSMISSION MODULE INTENDED TO BE PART OF A MOTOR VEHICLE TRANSMISSION

Номер: US20160084325A1

Автор: ARHAB Rabah, CAUMARTIN Laurent, RIBOT Herve

Принадлежит:

A torque transmission module (M) intended to be part of a motor vehicle transmission (), comprising: 11. A torque transmission module (M) intended to be part of a motor vehicle transmission () , comprising:{'b': '10', 'a cover (),'}{'b': '11', 'a double wet clutch mechanism () movable rotationally around an axis (X), and'}{'b': '12', 'a clutch cover () having an oil distribution device intended to supply oil to the double wet clutch,'}{'b': 10', '12', '5, 'the cover () and the clutch cover () being assembled so as to form a casing defining a receptacle in which the double wet clutch mechanism is partly received, the casing being able to be received entirely or in part in a clutch housing () of the transmission.'}2101112. The torque transmission module (M) according to claim 1 , wherein said cover () claim 1 , the double wet clutch mechanism () claim 1 , and the clutch cover () are pre-assembled to form an integral assemblage.350607012. The torque transmission module (M) according to claim 1 , wherein said oil distribution device () comprises at least one pump ( claim 1 , ) supported entirely or in part by the clutch cover ().4111510. The torque transmission module (M) according to claim 1 , wherein the double wet clutch mechanism () has a splined torque input shaft () extending axially toward the outside of the module (M) and passing through the cover ().51010015. The torque transmission module (M) according to claim 4 , wherein the cover () claim 4 , in the general shape of a bell claim 4 , exhibits a first opening () located at the apex of the cover and arranged for passage of the splined torque input shaft ().6101218. The torque transmission module (M) according to claim 1 , wherein the cover () and the clutch cover () are connected to one another by tightening a series of first fastening bolts ().712120. The torque transmission module (M) according to claim 1 , wherein the clutch cover () claim 1 , in the general shape of a bell claim 1 , exhibits a first ...

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Номер записи: 67

23-03-2017 дата публикации

METHOD FOR SEARCHING TOUCH POINT OF DCT CLUTCH

Номер: US20170082156A1

Автор: KIM Min-Hyo

Принадлежит: Hyundai Autron Co., Ltd.

The present invention provides a method for searching a touch point of a clutch in a dual clutch transmission, including: (a) a step of checking whether a touch point searching condition for a non-driving clutch and a driving clutch is met or not; (b) when the search condition of the step (a) is met, a step of detecting a searching point at which an absolute value of a difference between an acceleration value of an engine and an acceleration value of the driving clutch is larger than a threshold value after applying a position value of the non-driving clutch to the engine; and (c) a step of determining a position of the non-driving clutch corresponding to the searching point as the touch point. 1. A method for searching a touch point of a clutch in a dual clutch transmission , comprising:(a) a step of checking whether a touch point searching condition for a non-driving clutch and a driving clutch is met or not;(b) when the search condition of the step (a) is met, a step of detecting a searching point at which an absolute value of a difference between an acceleration value of an engine and an acceleration value of the driving clutch is larger than a threshold value after applying a position value of the non-driving clutch to the engine; and(c) a step of determining a position of the non-driving clutch corresponding to the searching point as the touch point.2. The method of claim 1 , wherein claim 1 , in the step (c) claim 1 , the touch point is determined by adding an offset compensation value corresponding to a torque of the engine to the position of the non-driving clutch corresponding to the searching point.3. The method of claim 1 , wherein claim 1 , in the step (a) claim 1 , when the non-driving clutch is in gear and the driving clutch is in a slip control state claim 1 , the touch point searching condition is met.4. The method of claim 3 , wherein claim 3 , in the step (b) claim 3 , searching the touch point is stopped when there is no change in the ...

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Номер записи: 68

25-03-2021 дата публикации

Biomedical finger assembly with ratcheting lock

Номер: US20210085490A1

Автор: Bradley Arthur CRITTENDEN, Catherine Rocille TREADWELL, Erich Theodore GRIEBLING

Принадлежит: RCM Enterprise LLC

This disclosure provides systems, apparatuses, and devices for a prosthetic digit usable with persons with amputations at or proximal to the metacarpophalangeal joint. The device restores prehension in a person with missing fingers or thumb by providing opposition to forces in the extension direction via a spring-loaded pawl and locking rack ratchet mechanism, thereby allowing an individual to manipulate or stabilize objects. The digit may be spring-loaded in the extension direction by a torsion spring or other biasing member. The pawl may be automatically disengaged from the rack when the digit reaches full flexion, and the full flexion disengage stop may be adjustable. The pawl may be automatically engaged with the rack when the digit reaches full extension, and the extension stop may be adjustable. The pawl may contain a lateral feature that creates interference with the anchoring linkage under load and limits deflection of the structure.

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Номер записи: 69

12-03-2020 дата публикации

DUAL CLUTCH UNIT WITH ELECTRIC DRIVE

Номер: US20200080598A1

Автор: Absenger Marc, Rupp Waldemar

Принадлежит:

A dual clutch unit for variable torque distribution to two output shafts comprises: a clutch input part rotatably drivable about an axis ; a first disk pack for transmitting torque from the clutch input part to a first clutch output part, wherein the first disk pack is axially loadable by a first pressure plate and is axially supported against the clutch input part via a first intermediate plate; a second disk pack for transmitting torque from the clutch input part to a second clutch output part, wherein the second disk pack is axially loadable by a second pressure plate and is axially supported against the clutch input part via a second intermediate plate; wherein the first intermediate plate and the second intermediate plate are axially arranged between the first disk pack and the second disk pack and are axially engaged with each other such that they are axially supported independently of each other against the clutch input part. 118.-. (canceled)19. A dual clutch unit for variably distributing torque to two output shafts , comprising:a clutch input part rotatably drivable about an axis of rotation;a first disk pack for transmitting torque from the clutch input part to a first clutch output part, wherein the first disk pack is axially loadable by a first pressure plate and is supported axially against the clutch input part via a first intermediate plate; anda second disk pack for transmitting torque from the clutch input part to a second clutch output part, wherein the second disk pack is axially loadable by a second pressure plate and is supported axially against the clutch input part via a second intermediate plate;wherein the first intermediate plate and the second intermediate plate are axially arranged between the first disk pack and the second disk pack and are axially engaged with each other such that they are axially supported independently of one another against the clutch input part.20. The dual clutch unit according to claim 19 ,wherein a first contact ...

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Номер записи: 70

29-03-2018 дата публикации

METHOD FOR CONTROLLING A DAMPING MODIFICATION

Номер: US20180085234A1

Автор: PAWLIK Roland, SEIFERT Dirk, Seyr Martin

Принадлежит: OTTO BOCK HEALTHCARE PRODUCTS GMBH

A method for controlling a damping modification in an artificial knee joint of an orthosis, an exoskeleton, or a prosthesis. The artificial knee joint has an upper part pivotally connected to a lower part A resistance unit is secured between the upper part and the lower part in order to provide a resistance against a flexion or extension The resistance unit is paired with an adjustment device to modify the resistance when a sensor signal of a control unit paired with the adjustment device activates the adjustment device. The flexion resistance is reduced for the swing phase. A curve of at least one load characteristic is detected when walking or standing; a maximum of the load characteristic curve when standing is ascertained; and the flexion damping is reduced to a swing-phase damping level during the standing phase when a threshold of the load characteristic below a maximum is reached. 1. A method for controlling a damping variation in an artificial knee joint of an orthosis , an exoskeleton or prosthesis , the method comprising:providing an artificial knee joint with an upper part and a lower part, which are fastened to one another in a manner pivotable about a pivot axis , a resistance unit fastened between the upper part and the lower part to provide a resistance to flexion or extension of the artificial knee joint and an adjustment device assigned to the resistance device to vary the resistance when a sensor signal of a control unit assigned to the adjustment device activates the adjustment device;reducing the flexion resistance for a swing phase;capturing a profile of at least one load characteristic when walking or standing, the at least one load characteristic acting on the orthosis, exoskeleton or prosthesis;ascertaining a maximum of the at least one load characteristic profile during a stance phase or when standing;after reaching the maximum, reducing the flexion damping during the stance phase to a swing phase damping level if a threshold of the at least ...

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Номер записи: 71

29-03-2018 дата публикации

METHOD FOR CONTROLLING THE STANDING-PHASE DAMPING OF AN ARTIFICIAL KNEE JOINT

Номер: US20180085235A1

Автор: SEIFERT Dirk, ZARLING Sven

Принадлежит: OTTO BOCK HEALTHCARE PRODUCTS GMBH

A method for controlling the standing-phase damping of an artificial knee joint comprising an upper part and a lower part which are secured together in a pivotal manner about a pivot axis, a resistance unit which is arranged between the upper part and the lower part and has an adjustment device via which the damping resistance can be modified, and a control unit which is coupled to the adjustment device and which is connected to at least one sensor. The adjustment is carried out on the basis of sensor data, and the knee angle is detected by the at least one sensor during the standing-phase inflexion up to the terminal standing phase. The flexion damping is increased to a level above an initial flexion damping in order to prevent a further inflexion upon reaching a specified maximum knee angle. 1. A method for controlling the stance phase damping of an artificial knee joint , the method comprising:providing an upper part and a lower part which are fastened to one another in a manner pivotable about a pivot axis, a resistance unit which is arranged between the upper part and the lower part and which has an adjustment device to modify the damping resistance, a control unit which is coupled to the adjustment device and which is connected at least to one sensor, wherein the adjustment is carried out using sensor data from the at least one sensor;detecting, during stance phase flexion up until the terminal stance phase, a knee angle using the at least one sensor;increasing the flexion damping to a level above an initial flexion damping, to a point of prevention of further flexion when a set maximum knee angle is reached.2. The method as claimed in claim 1 , wherein the flexion damping is held at the level when the maximum knee angle is reached.3. The method as claimed in claim 1 , wherein the flexion damping is held constant during an initial heel strike and the flexion damping is increased in a manner dependent on a load.4. The method as claimed in claim 1 , wherein a ...

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Номер записи: 72

21-03-2019 дата публикации

MAGNETIC PROSTHETIC IMPLANTS AND METHODS THEREOF

Номер: US20190083266A1

Автор: Cook Stephen D., Harrison Michael C., Nolan Liam P., Patron Laura P.

Принадлежит:

Prosthetic implant devices and related methods are provided. The prosthetic implant devices include an internal component and an external component. The internal component has an implant portion associated with one or more rare earth magnets. The internal component being of a size and shape suitable for surgical implantation into the residual limb of the amputee. The one or more rare earth magnets generate at least one magnetic field. The external component having a prosthetic piston associated with a plurality of magnetic elements and a prosthetic cup associated with a magnetic array. The magnet elements of the prosthetic piston being in adaptable magnetic association with the at least one magnetic field generated by the one or more rare earth magnets. 1. A prosthetic implant device comprising: an implant portion configured for implantation into a bone of a residual limb of an amputee; and', 'one or more first magnets associated with the implant portion;, 'an internal component comprising a prosthetic cup housing a magnet array, the prosthetic cup configured to attach to the residual limb; and', 'a prosthetic piston configured to attach to the prosthetic cup comprising one or more second magnets, the one or more second magnets being in adaptable magnetic association with the one or more first magnets., 'an external component comprising2. The prosthetic implant device of ;wherein the one or more second magnets generate at least one magnetic field; andwherein the magnetic array is configured to reduce lateral or side forces experienced by the one or more first magnets due to the at least one magnetic field generated by the one or more second magnets.3. The prosthetic implant device of ; a bearing cylinder configured to attach to the prosthetic cup; and', 'a linear motion shaft located within the bearing cylinder;, 'wherein the prosthetic piston further compriseswherein the linear motion shaft includes an oval-shaped track and houses the one or more second magnets; ...

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Номер записи: 73

19-03-2020 дата публикации

PUMP SYSTEM

Номер: US20200085598A1

Автор: JONASSON Hafsteinn, Marlin Dana Stewart, SANDAHL David

Принадлежит:

A prosthetic system includes first and second parts rotatable relative to one another about a joint. The first and second parts are adapted to form at least part of a weight bearing connection between a prosthetic foot and a socket. A pump system includes a pump mechanism operatively connected to the first and second parts. Rotation of the first part and/or the second part about the joint moves the pump mechanism between an original configuration in which the volume of a fluid chamber defined by the pump mechanism is zero or near-zero, and an expanded configuration in which the volume of the fluid chamber is increased. 1. A prosthetic system comprising:first and second parts rotatable relative to one another about a joint, the first and second parts adapted to form at least part of a weight bearing connection between a prosthetic foot and a socket; anda pump system including:a pump mechanism operatively connected to the first and second parts such that relative rotation between the first and second parts about the joint moves the pump mechanism between a predetermined configuration in which a volume of a fluid chamber defined by the pump mechanism is zero or near-zero, and an expanded configuration in which the volume of the fluid chamber is increased, the pump mechanism including a housing, a membrane, and at least one valve assembly arranged to control movement of fluid into and/or from the pump mechanism;a movable member including a first end portion connected to the membrane and a second end portion connected to the first part.2. The prosthetic system of claim 1 , wherein the membrane is connected at or near its center point to the movable member and an outer radial edge portion of the membrane is connected to the housing.3. The prosthetic system of claim 1 , wherein the membrane is connected to the movable member by a connector.4. The prosthetic system of claim 3 , wherein the connector defines a through channel in fluid communication with the fluid chamber and ...

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Номер записи: 74

19-06-2014 дата публикации

METHOD AND SYSTEM FOR A PROSTHETIC DEVICE WITH MULTIPLE LEVELS OF FUNCTIONALITY ENABLED THROUGH MULTIPLE CONTROL SYSTEMS

Номер: US20140172120A1

Автор: McFadden Matthew P., QUINTERO Hugo, Steele Wilson, Van Wieren Paul

Принадлежит: Freedom Innovations, LLC

Systems and methods for a prosthetic device with multiple levels of functionality enabled through multiple control systems. The microprocessor-controlled prosthetic device stores a plurality of programmable control systems, such as a beginner control system, an intermediate control system, and an advanced control system. Based on a medical professional's assessment, the prosthetic device is programmed to operate under a programmable control system suitable to the capability level of the amputee. The microprocessor-controlled prosthetic device can be re-programmed to operate under another programmable control system as the capability level of the amputee changes. A new amputee should operate under a beginner control system, which provides high stability and low functionality. The high stability, low functionality combination provides high predictability, which helps the new amputee build confidence and trust in the prosthetic. As the amputee's capability progresses, increased functionality is provided in the intermediate and advanced control systems. 1. A prosthetic device with multiple levels of functionality enabled through multiple control systems , said device comprising of:a controller having a microprocessor;a plurality of sensors;an actuator;a machine-readable storage medium for storing a plurality of programmable control systems, wherein each of the plurality of programmable control systems has at least one functionality different from each other; andan interface configured to receive an external input, wherein the controller is configured to receive the external input from the interface.2. The device of claim 1 , wherein the external input programs the microprocessor-controlled prosthetic device to operate under one of the plurality of programmable control systems.3. The device of claim 2 , wherein the plurality of programmable control systems are mutually exclusive such that the microprocessor-controlled prosthetic device only operates under the selected ...

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Номер записи: 75

28-03-2019 дата публикации

SYSTEM AND METHOD FOR CONTROLLING A PROSTHETIC DEVICE

Номер: US20190091041A1

Автор: Aslam Zulfiqar M.

Принадлежит:

The present invention discloses a system and method for motion recognition and control of a prosthetic device. The system of the present invention uses a movement detector for detecting dimensional motion of a non-disabled physical appendage and generating motion information based on this detecting. The system further includes a microcontroller adapted to be connected to the movement detector for receiving and processing the motion information transmitted from the one or more movement detectors. The system controls a prosthetic device which has actuators that are configured to actuate motion of the prosthetic device based on the processing of the motion information. 1. System for motion recognition and control of a prosthetic device , the system comprising:a movement detector for detecting dimensional motion of a non-disabled physical appendage and generating motion information based on said detecting;a microcontroller adapted to be connected to said movement detector for receiving and processing the motion information transmitted from the movement detector;a prosthetic device, adapted to be connected to the microcontroller, wherein the prosthetic device comprises one or more actuators which are configured to actuate motion of the prosthetic device, based on said processing of the motion information.2. The system of claim 1 , wherein the movement detector comprises one or more sensors claim 1 , wherein the one or more sensors comprise at least one motion sensor and at least one optical sensor.3. The system of claim 2 , wherein the one or more sensors comprise a depth sensor claim 2 , wherein the depth sensor comprises at least one of claim 2 , an accelerometer claim 2 , a gyroscope claim 2 , a magnetometer and an e-compass.4. The system of claim 1 , wherein the processing motion information comprises converting the motion information to movement commands readable by the one or more actuators.5. The system of claim 1 , wherein the processing motion information ...

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Номер записи: 76

06-04-2017 дата публикации

ORTHOPEDIC KNEE JOINT AND METHOD FOR CONTROLLING AN ORTHOPEDIC KNEE JOINT

Номер: US20170095354A1

Автор: KAMPAS Philipp, PUSCH Martin

Принадлежит: OTTO BOCK HEALTHCARE GMBH

The invention relates to an orthopedic knee joint, comprising an upper part (), on which upper connecting means () are disposed, a lower part () pivotally supported on the upper part (), connecting means for orthopedic components (), and a stop ( ) for delimiting an extension movement, wherein the stop () is configured displaceably and coupled to an adjusting device (), which is coupled to a control device (), which actuates the adjusting device () as a function of sensor data and changes the position of the stop (). 112-. (canceled)13. A method for controlling an orthopedic knee joint , comprising:providing an orthopedic knee joint having an extension stop, an adjustment device, and at least one sensor, the at least one sensor configured to generate sensor data;determining a walking speed or a stride length from the sensor data;automatically changing a position of the extension stop with the adjustment device based upon the determined walking speed or stride length.14. The method as claimed in claim 13 , wherein the orthopedic knee joint comprises a blocking device claim 13 , the method further comprising:closing the blocking device when an extension stop position is reached.15. The method as claimed in claim 13 , further comprising:changing the position of the extension stop to a maximum extension position for standing.16. The method as claimed in claim 13 , further comprising:adjusting the position of the extension stop during a swing phase.17. The method as claimed in claim 16 , further comprising:continuously adapting the position of the extension stop.18. The method as claimed in claim 13 , wherein the orthopedic knee joint comprises a blocking device claim 13 , the method further comprising:adjusting the position of the extension stop by closing the blocking device in a hydraulic line.19. The method as claimed in claim 13 , further comprising:measuring at least one of a moment, force, and acceleration occurring within the orthopedic knee joint using the at ...

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Номер записи: 77

06-04-2017 дата публикации

DUAL CLUTCH

Номер: US20170097051A1

Автор: Baumann Michael, Reimnitz Dirk

Принадлежит: SCHAEFFLER TECHNOLOGIES AG & CO. KG

The invention relates to a duplex clutch for coupling a drive shaft of a motor vehicle engine to a first transmission input shaft and/or a second transmission input shaft of a motor vehicle transmission, including a first partial clutch for coupling the drive shaft to the first transmission input shaft, with the first partial clutch comprising a first counter plate, at least one first intermediate plate that can be axially displaced in reference to the first counter plate, and a first compression plate that can be axially displaced in reference to a first counter plate, and to a first intermediate plate for compressing first friction linings of a first clutch disk between the first counter plate and the first intermediate plate and between the first intermediate plate and the first compression plate, a second partial clutch for coupling the drive shaft to the second transmission input shaft, with the second partial clutch comprising a second counter plate, at least one second intermediate plate that can be axially displaced in reference to the second counter plate, and a second compression plate that can be axially displaced in reference to the second counter plate, and to the second intermediate plate for compressing second friction linings of a second clutch disk between the second counter plate and the second intermediate plate as well as between the second intermediate plate and the second compression plate, a first actuating cup embodied stiffly for the displacement of the first compression plate and a second actuating cup embodied stiffly for the displacement of the second compression plate. 1. A duplex clutch for coupling a drive shaft of a motor vehicle to at least one of a first transmission input shaft or a second transmission input shaft of a motor vehicle transmission , the duplex clutch comprising a first partial clutch for coupling the drive shaft to the first transmission input shaft , with the first partial clutch comprising a first counter plate , ...

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Номер записи: 78

06-04-2017 дата публикации

MULTI-DISK CLUTCH

Номер: US20170097052A1

Автор: Reimnitz Dirk

Принадлежит: SCHAEFFLER TECHNOLOGIES AG & CO. KG

A multi-plate clutch, in particular a dual-plate clutch, for coupling a drivetrain of a motor vehicle engine having at least one transmission input shaft, in particular for a dual clutch is provided, having a counter plate for introducing a torque from the driveshaft, a clutch plate for channeling the torque to the transmission input shaft, the clutch plate having a first lining ring for frictionally engaged torque transfer and a second lining ring which is movable axially relative to the first lining ring for frictionally engaged torque transfer, a separator plate which is movable axially relative to the counter plate, the separator plate being positioned between the first lining ring and the second lining ring in the axial direction, and a contact plate which is movable axially relative to the counter plate by an actuating element to frictionally compress the clutch plate, the first lining ring being positioned between the contact plate and the separator plate in the axial direction and the second lining ring being positioned between the separator plate and the counter plate, there being n separator plates and n+1 lining rings provided, the movement of the separator plate in the axial direction being coupled with the movement of the contact plate in the axial direction by means of a coupling mechanism, where over at least part of the distance between an open position of the contact plate corresponding to the disengaged position of the multi-plate clutch and a maximum closed position of the contact plate corresponding to the engaged position of the multi-plate clutch when the lining rings are worn, a current distance translation ratio i(s) of the axial displacement of the contact plate to the axial displacement of the separator plate which is furthest distant in the axial direction from the contact plate at an axial position sof the contact plate deviates from i(s)=n+1, and/or a current distance translation ratio i(s)of the axial displacement of the contact plate ...

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Номер записи: 79

14-04-2016 дата публикации

TRANSMISSION SYSTEM HAVING A DOUBLE WET CLUTCH MECHANISM

Номер: US20160102717A1

Автор: ARHAB Rabah, CAUMARTIN Laurent, RIBOT Herve

Принадлежит:

A transmission system (), especially for a motor vehicle, having around an axis (O) at least an input shell () that is rotationally connected to a driving shaft and to a drive web () in order to rotationally connect said input shell () to a double wet clutch mechanism () that, having at least a first clutch (E) and a second clutch (E) respectively of the multiple-disc type, is controlled to selectively couple said driving shaft to a first driven shaft (A) and to a second driven shaft (A), wherein the input shell () and the drive web () are rotationally connected by connecting means (), which are constituted in particular by rivets (), with zero angular clearance. 110121812201212. A transmission system () , especially for a motor vehicle , having around an axis (O) at least an input shell () that is rotationally connected to a driving shaft and to a drive web () in order to rotationally connect said input shell () to a double wet clutch mechanism () that , having at least a first clutch (E) and a second clutch (E) respectively of the multiple-disc type , is controlled to selectively couple said driving shaft to a first driven shaft (A) and to a second driven shaft (A) ,{'b': 12', '18, 'wherein the input shell () and the drive web () are rotationally connected by connecting means, with zero angular clearance.'}224. The system according to claim 1 , wherein said connecting means () are implemented by riveting.324. The system according to claim 1 , wherein said connecting means () are implemented by welding.424. The system according to claim 3 , wherein said connecting means () are implemented by a circumferentially continuous weld bead.5. The system according to claim 3 , wherein said connecting means are implemented by a circumferentially discontinuous weld bead claim 3 , such as an added-material weld.624. The system according to claim 3 , wherein said connecting means () are implemented by a weld with no added material claim 3 , such as a spot resistance weld. ...

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Номер записи: 80

12-04-2018 дата публикации

INJECTION MOLDED PROSTHETIC LIMB SYSTEM AND RELATED METHODS

Номер: US20180098862A1

Автор: Kuiken Todd, Ursetta Frank

Принадлежит:

Injection molded prosthetic limb systems and related methods are disclosed. Example prosthetic hands include a plurality of segments, wherein each segment is comprised of an injection molded plastic. 1. A prosthetic hand comprising a plurality of segments , wherein each segment is comprised of an injection molded plastic.2. The prosthetic hand as defined in claim 1 , comprising a spool connected to one or more of the segments via corresponding flexion cables in the one or more segments.3. The prosthetic hand as defined in claim 2 , wherein the spool is configured to rotate in a first direction to flex the segments and to rotate in a second direction to release the segments.4. The prosthetic hand as defined in claim 2 , wherein at least one of the flexion cables is routed through at least one of the segments of a finger and is coupled to a first spring at a distal end of the one of the finger.5. The prosthetic hand as defined in claim 4 , wherein the spring and the one of the flexion cables are configured to provide compliance of the corresponding member.6. The prosthetic hand as defined in claim 4 , wherein at least one of the segments of the finger comprises a second spring biased to extend the finger.7. The prosthetic hand as defined in claim 2 , further comprising a motor configured to actuate the spool.8. The prosthetic hand as defined in claim 2 , further comprising a Bowden cable configured to actuate the spool.9. The prosthetic hand as defined in claim 7 , wherein the spool has a first diameter where the flexion cables are coupled to the spool and a second diameter where the Bowden cable is coupled to the spool.10. The prosthetic hand as defined in claim 1 , wherein at least one of the segments is a thumb finger that is manually positionable.11. The prosthetic hand as defined in claim 1 , further comprising metallic joints configured to pivotally couple two or more of the segments corresponding to a same finger.12. The prosthetic hand as defined in claim 1 , ...

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Номер записи: 81

12-04-2018 дата публикации

ACTUATOR-DAMPER UNIT

Номер: US20180098864A1

Автор: AUBERGER Roland, Seyr Martin, SIMA Harald

Принадлежит: OTTO BOCK HEALTHCARE PRODUCTS GMBH

An actuator-damper unit for use in orthotic or prosthetic devices. The actuator-damper unit includes a housing which may be fastened on the orthotic or prosthetic device and in which a cylinder is formed. A first piston is displaceably mounted in the cylinder and is coupled to a piston rod. The piston rod is disposed, via a first end, on the first piston and may be coupled, via a second end, to the orthotic or prosthetic device. The first piston separates two fluid chambers in the cylinder from each other and forms a piston-cylinder unit, wherein at least one further piston is coupled to the first piston in order to form at least one further, variable-volume fluid chamber. 1. An actuator-damper unit for use between first and second components of an orthotic or prosthetic device , comprising:a first housing having a cylinder formed therein and configured to be coupled to the first component of the orthotic or prosthetic device;a first piston displaceably mounted in the cylinder, the first piston separating the cylinder into a first fluid chamber and a second fluid chamber, the first piston and cylinder defining a first piston-cylinder unit;a first piston rod coupled to the first piston at a first end, and configured to be coupled at a second end to the second component of the orthotic or prosthetic device;a second piston coupled to the first piston, the second piston creating at least one separate variable-volume fluid chamber by dividing the first or second fluid chamber.2. The actuator-damper unit according to claim 1 , wherein the first piston and the second piston are coupled to each other hydraulically or mechanically.3. The actuator-damper unit according to claim 1 , wherein the second piston is coupled to the first piston by at least one of an compressible energy accumulator and an expandable energy accumulator.4. The actuator-damper unit according claim 3 , wherein the energy accumulator is one of a spring claim 3 , an elastomeric element claim 3 , and a ...

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Номер записи: 82

13-04-2017 дата публикации

Coordinating Operation of Multiple Lower Limb Devices

Номер: US20170100264A1

Автор: Goldfarb Michael, Lawson Brian

Принадлежит:

Systems and methods for operating autonomous lower limb devices, including at least one adjustable joint and configured for at least supporting a body are provided. A method includes collecting real-time sensor information associated with the autonomous lower limb device. The method also includes receiving, over a communications link, remote data for at least one other lower limb device configured for supporting the body. The method further includes generating control data for transitioning the autonomous lower limb device from a current state in a current finite state model for operating the autonomous lower limb device to a different state in the current finite state model, where the different state is selected based on the real-time sensor information and the remote data. 120-. (canceled)21. A method for operating an autonomous leg prosthesis for a lower limb of a body having at least one adjustable joint , at least one sensor for collecting real-time sensor information for the autonomous leg prosthesis , and a communications device , the method comprising:generating, via a first control system of the autonomous leg prosthesis, first control data for the communications device to establish a communications link with a second leg prosthesis associated with another lower limb of the body contralateral to the lower limb and having a second control system operating independently of the first control system;receiving, at the first control system over the communications link, remote data for the second leg prosthesis, the remote data comprising state information for a second finite state model used by the second control system for operating the second leg prosthesis;generating, via the first control system, second control data for transitioning the autonomous leg prosthesis from a current state in a first finite state model for operating the autonomous leg prosthesis to a different state in the first finite state model,wherein the different state is selected based on ...

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Номер записи: 83

26-03-2020 дата публикации

WEDGE CLUTCH WITH WEDGE CHAIN

Номер: US20200096052A1

Автор: Lee Brian, OHR CARSTEN

Принадлежит: SCHAEFFLER TECHNOLOGIES AG & CO. KG

A wedge clutch includes an inner race and an outer race. The outer race defines an inner cam surface. A chain of wedges encircles the inner race and are configured to couple the races when the clutch is engaged. The wedges have outer surfaces that match with sections of the inner cam surface such that the wedges have an outer radial position when in first rotational position relative to the cam surface and have an inner radial position when in a second rotational position to frictionally engage the inner race. 1. A wedge clutch comprising:an inner race;an outer race defining an inner cam surface; anda chain of wedges encircling the inner race and configured to couple the races when the clutch is engaged, the wedges having outer surfaces that match with sections of the inner cam surface such that the wedges have an outer radial position when in a first rotational position relative to the cam surface and have an inner radial position when in a second rotational position to frictionally engage the inner race.2. The wedge clutch of claim 1 , wherein the wedges are interconnected by links.3. The wedge clutch of claim 1 , wherein the wedges are arranged in pairs with the wedges of each pair being in a mirrored orientation relative to each other.4. The wedge clutch of claim 3 , wherein the wedges of each pair are interconnected to each other with a first type of link claim 3 , and wherein the pairs are connected to others of the pairs with a second type of links.5. The wedge clutch of claim 4 , wherein the first type of link includes a resilient member that basis the wedges of the pair away from each other.6. The wedge clutch of claim 1 , wherein the wedges are movable relative to each in a circumferential direction.7. The wedge clutch of claim 1 , wherein each of the wedges defines at least one slot generally elongated in a circumferential direction of the clutch claim 1 , and wherein the chain of wedges further includes links having pins disposed in the slots.8. The ...

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Номер записи: 84

02-06-2022 дата публикации

JOINT DEVICE

Номер: US20220168118A1

Автор: ONO Hiromi

Принадлежит:

The joint device having a linking unit which links a first member and a second member in a manner allowing relative movement, and having an expansion/contraction device which is connected across the first member and the second member in a manner allowing power transmission and which can modify an angle formed by the first member and the second member around the linking member by expanding and contracting. The expansion/contraction device has a rotary unit which generates rotary power, and a conversion unit which is connected to the rotating unit in a manner allowing power transmission and converts the rotary power generated by the rotary unit into translational motion along a direction of expansion/contraction. 1. A joint device comprising:a linking unit that links a first member with a second member such that the first and second members are movable relative to each other; andan extension/contraction device that is connected between the first member and the second member in a manner allowing power transmission, and is capable of varying an angle formed by the first member and the second member around the linking unit by extending and contracting,wherein the extension/contraction device includes a rotary unit that is configured to generate a rotational power, and a conversion unit that is connected to the rotary unit in a manner allowing power transmission and is configured to convert the rotational power generated by the rotary unit into translational motion in an extension/contraction direction.2. The joint device according to claim 1 ,wherein the rotary unit includes a rotating machine that generates a rotational power upon supply of electric power.3. The joint device according to claim 2 , further comprising:a control unit that controls the rotational power of the rotating machine.4. The joint device according to claim 3 ,wherein the control unit is configured to control the rotating machine such that when an external force acting in a contraction direction is ...

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Номер записи: 85

21-04-2016 дата публикации

METHOD FOR A HYDRAULIC SYSTEM FOR A DUAL-CLUTCH GEARBOX

Номер: US20160108977A1

Автор: AMMLER Stefan

Принадлежит: Audi AG

A hydraulic system for an automatic gearbox for a motor vehicle, includes a high-pressure circuit which includes a pressure accumulator, at least one clutch and actuators, and a low-pressure circuit for cooling the clutch, the high-pressure circuit and the low-pressure circuit each containing a hydraulic cooling pump and a hydraulic charging pump that can be driven by a shared electric motor; and a controller which, when it is detected that the pressure accumulator needs to be charged, controls the electric motor to run at a charging setpoint speed, and/or, when it is detected that cooling is needed or another need exists, controls the electric motor to run at a cooling setpoint speed or another setpoint speed. When the pressure accumulator does not need to be charged and there is no need for cooling and no other need, the controller reduces the setpoint speed to zero for a specified period. At the end of the period the controller controls the electric motor to run at least at the test speed. 123.-. (canceled)24. A hydraulic system for an automatic transmission , in particular dual-clutch transmission , of a motor vehicle comprising:a high-pressure circuit comprising a pressure accumulator, at least one clutch, and actuators;a low-pressure circuit for cooling the at least one clutch, said high-pressure circuit and said low-pressure circuit each comprising a cooling hydraulic pump and a charging hydraulic pump, said cooling hydraulic pump and said charging hydraulic pump being drivable via a shared electric motor;a control device having a pressure model unit, said control device being configuredto control the electric motor to run at a charging setpoint speed when recognizing a requirement for charging the pressure accumulator and/orto control the electric motor to run at a cooling setpoint speed or other setpoint speed when recognizing a requirement for cooling or other requirement,to lower the speed of the electric motor to zero for a predetermined period of time ...

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Номер записи: 86

09-06-2022 дата публикации

VALVE AND PROSTHETIC KNEE JOINT HAVING SUCH A VALVE

Номер: US20220175556A1

Автор: Boiten Herman

Принадлежит: Ottobock SE & Co. KGaA

A valve an inlet, an outlet that is connected to the inlet via a fluid connection, and a valve body which can be brought by displacing it along a displacement direction into a first position, in which the fluid connection is blocked, and a second position, in which the fluid connection is open, wherein the inlet is designed and arranged in such a way that a fluid entering through the inlet exerts a total force on the valve body that at least also acts in a force direction which is perpendicular to the displacement direction when the valve body is in the first position. 111-. (canceled)12. A valve comprising:an inlet;an outlet that is connected to the inlet via a fluid connection; anda valve body movable along a displacement direction into a first position, in which the fluid connection is blocked, and a second position, in which the fluid connection is open;wherein the valve body is maintained in the second position when a fluid is flowing in the fluid connection.13. The valve according to claim 12 , further comprising a spring positioned above the valve body.14. The valve according to claim 13 , wherein the spring spring-loads the valve body towards the first position.15. The valve according to claim 13 , further comprising a connection channel positioned above the spring and fluidly connected to the outlet.16. The valve according to claim 15 , wherein the connection channel generates a negative pressure that maintains the valve body in the second position when the fluid is flowing in the fluid connection.17. The valve according to claim 12 , wherein the valve comprises a switch pin claim 12 , the activation of which enables the movement of the valve body from the first position into the second position.18. The valve according to claim 17 , wherein the valve comprises a switch spring claim 17 , which is configured to transfer a force from the switch pin to the valve body when the switch pin is activated.19. The valve according to claim 18 , wherein the switch ...

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Номер записи: 87

28-04-2016 дата публикации

CLUTCH MECHANISM FOR MOTOR VEHICLES

Номер: US20160116003A1

Автор: Kirchhoffer Johann

Принадлежит:

A clutch mechanism for motor vehicles, having a dry individual clutch or a dual clutch, transmits torque from an engine to the transmission or selectively to one of two transmission sections. The clutch has a central disk and, on at least one side, a pressure plate. In order to further improve the cooling effect, especially in the region of the central disk and of the pressure plates, the central disk and/or at least one of the pressure plates is composed of two partial plates, wherein the mutually facing inner surfaces of the partial plates are provided with intermeshing vanes such that the intermeshing vanes of the two partial plates form an interior space having through channels which brings about flow in a radial direction or in a direction having a radial component. 1. A clutch mechanism for motor vehicles comprising:a central disk and pressure plate, wherein at least one of the central disk and pressure plate comprise two partial plates, wherein mutually facing inner surfaces of the partial plates are provided with intermeshing vanes such that the intermeshing vanes define channels on an interior space to bring about flow of cooling air in a direction having a radial component.2. The clutch mechanism of wherein the vanes of the two partial plates are curved claim 1 , wherein the curvature of the vanes is oriented in the same circumferential direction claim 1 , and wherein the vanes intermesh with a gap.3. The clutch mechanism of wherein the intermeshing vanes of the partial plates are curved counter to the direction of rotation of the central disk.4. The clutch mechanism of wherein the two partial plates are connected to one another by rivets that are arranged in a manner distributed at intervals over the circumference of the partial plates.5. The clutch mechanism of wherein the channels have outlets situated radially on the outside of the channels between the riveted joints.6. The clutch mechanism of wherein the channels have inlets on opposite sides in the ...

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Номер записи: 88

10-07-2014 дата публикации

POWERED LEG PROSTHESIS AND CONTROL METHODOLOGIES FOR OBTAINING NEAR NORMAL GAIT

Номер: US20140195007A1

Автор: Goldfarb Michael, IV Frank Charles, Mitchell Jason E., Sup, Varol Huseyin Atakan, Withrow Thomas J.

Принадлежит: VANDERBILT UNIVERSITY

A powered leg prosthesis includes powered knee joint comprising a knee joint and a knee motor unit for delivering power to the knee joint. The prosthesis also includes a prosthetic lower leg having a socket interface coupled to the knee joint and a powered ankle joint coupled to the lower leg opposite the knee joint comprising an ankle joint and an ankle motor unit to deliver power to the ankle joint. The prosthesis further includes a prosthetic foot coupled to the ankle joint, at least one sensor for measuring a real-time input, and at least one controller for controlling movement of the prosthesis based on the real-time input. 125-. (canceled)26. A prosthesis , comprising:a powered joint including a joint and a motor unit configured to deliver power to the joint;at least one sensor configured to measure at least one real-time input; and determine a passive portion of a joint torque for the joint, the passive portion being based on a passive function of at least one of an angle of the joint and an angular velocity of the joint;', 'determine an active portion of the joint torque for the joint, the active portion being based on an active function of the at least one real-time input; and', 'control movement of the motor unit based on the passive portion and the active portion of the joint torque., 'a controller electronically connected to the powered joint and configured to27. The prosthesis of claim 26 , wherein the at least one real-time input results from an interaction between a user and the prosthesis.28. The prosthesis of claim 26 , wherein the passive portion has a spring-dashpot behavior.29. The prosthesis of claim 26 , wherein the controller is further configured to determine the active and passive portions of the joint torque by solving a constrained optimization problem.30. The prosthesis of claim 26 , wherein the controller is further configured to generate control signals for controlling movement of the motor unit based on a difference between the active ...

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Номер записи: 89

30-04-2015 дата публикации

WEARABLE ROBOT AND METHOD OF CONTROLLING THE SAME

Номер: US20150119996A1

Автор: CHOI Jong Do, HA Tae Sin, KIM Gyung Rock, KIM Ji Min, KWON Young Do, Shim Young Bo

Принадлежит:

Provided is a method of controlling a wearable robot, the method including: measuring a ground reaction force (GRF) exerted on a wearer's soles; calculating a time variation rate of the measured GRF; measuring the wearer's knee joint angle; and detecting a time point at which the calculated time variation rate of the GRF and the measured knee joint angle cross each other. 1. A method of controlling a wearable robot configured to be worn by a user , the method comprising:measuring a ground reaction force (GRF) and a knee joint angle, the GRF being a force exerted on at least one sole of the user and the knee joint angle being an angle of one or more knee joints of the user;detecting a point in time at which a time variation rate of the GRF and the knee joint angle cross each other; anddetermining whether the user has begun standing based on the detecting, and applying an auxiliary torque to the wearable robot, if the user has begun standing.2. The method of claim 1 , further comprising:generating the auxiliary torque, after the determining that the user has begun standing.3. The method of claim 2 , wherein the generating the auxiliary torque generates an auxiliary torque having a trigonometrical function wave shape in which a plurality of sinusoidal waves overlap each other.4. The method of claim 3 , wherein the plurality of sinusoidal waves have different frequencies claim 3 , sizes claim 3 , and phases.5. The method of claim 2 , wherein the generating an auxiliary torque further comprises:determining a time when the generated auxiliary torque is applied to the wearable robot.6. The method of claim 5 , wherein the determining a time when the generated auxiliary torque is applied to the wearable robot comprises:measuring a hip joint angle when the user leans forward at a movement speed;calculating the movement speed by differentiating the measured hip joint angle; anddetermining an auxiliary torque applying time based on the movement speed.7. The method of claim 1 , ...

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Номер записи: 90

26-04-2018 дата публикации

CLUTCH FOR VEHICLE

Номер: US20180112720A1

Автор: Choi Jae Young, HONG Sung Wha, PARK Jong Yun

Принадлежит: HYUNDAI MOTOR COMPANY

A clutch for a vehicle may include a first rotor locked to a rotating shaft controlling rotations of the first rotor; a second rotor rotatably provided on the rotating shaft; a clutch part inclinedly protruding from the second rotor toward the first rotor, wherein an outer circumferential surface of the clutch part is configured as a conical surface; an inner ring rotating along with the first rotor; a cone rotating along with the second rotor; an outer ring rotating along with the first rotor; and a sleeve rectilinearly slidable at an outside of an outer circumferential surface of the first rotor along a direction of the rotating shaft to press the outer ring toward the second rotor, forming friction surfaces between the outer ring and the cone, between the cone and the inner ring, and between the inner ring and the clutch part. 1. A clutch for a vehicle , the clutch comprising:a first rotor locked to a rotating shaft;a second rotor rotatably provided on the rotating shaft;a clutch part inclinedly protruding from the second rotor toward the first rotor, wherein an outer circumferential surface of the clutch part is configured as a conical surface;an inner ring rotating along with the first rotor, and configured to provide a friction surface relative to the outer circumferential surface of the clutch part;a cone rotating along with the second rotor, and configured to provide a friction surface relative to an outer circumferential surface of the inner ring;an outer ring rotating along with the first rotor, and configured to provide a friction surface relative to an outer circumferential surface of the cone; anda sleeve rectilinearly slidable at an outside of an outer circumferential surface of the first rotor along a direction of the rotating shaft to press the outer ring toward the second rotor, forming friction surfaces between the outer ring and the cone, between the cone and the inner ring, and between the inner ring and the clutch part.2. The clutch of claim 1 , ...

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Номер записи: 91

26-04-2018 дата публикации

LOCK-UP DEVICE FOR TORQUE CONVERTER

Номер: US20180112758A1

Автор: Maeda Kazuhito, YASUDA Keiichi

Принадлежит: EXEDY CORPORATION

A lock-up device transmits a torque through a turbine of a torque converter. The lock-up device includes a friction surface, a clutch disc, a piston and a pressure plate. The friction surface is provided on a lateral surface of a front cover. The clutch disc has an annular shape and is capable of being pressed in contact with the friction surface. The piston is disposed between the front cover and the turbine. The piston is movable in an axial direction. The pressure plate has an annular shape. The pressure plate is disposed between the piston and the clutch disc, and presses the clutch disc toward the front cover by a pressing force to be applied thereto from the piston. The pressure plate has a lower bending stiffness than the piston, and is deformable in accordance with deformation of the front cover when pressed toward the front cover by the piston. 1. A lock-up device for a torque converter , the lock-up device for transmitting a torque from a front cover to a transmission-side member through a turbine of the torque converter , the lock-up device comprising:a friction surface provided on a lateral surface of the front cover;a clutch disc having an annular shape, the clutch disc capable of being pressed in contact with the friction surface;a piston disposed between the front cover and the turbine, the piston being movable in an axial direction; anda pressure plate having an annular shape, the pressure plate disposed between the piston and the clutch disc so as to be movable in the axial direction, the pressure plate for pressing the clutch disc toward the front cover by a pressing force to be applied thereto from the piston, whereinthe pressure plate has a lower bending stiffness than the piston, the pressure plate deformable in accordance with deformation of the front cover when pressed toward the front cover by the piston.2. The lock-up device for a torque converter according to claim 1 , whereinthe clutch disc includes a core plate having an annular shape and ...

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Номер записи: 92

18-04-2019 дата публикации

ACTUATOR AND MOTION ASSISTANCE APPARATUS INCLUDING THE SAME

Номер: US20190110908A1

Автор: CHOI Byungjune, CHOI Hyun Do, KIM Jeonghun, Lee Jongwon, LEE Minhyung, LEE Youn Baek, PARK Youngjin, ROH Se-gon

Принадлежит: SAMSUNG ELECTRONICS CO., LTD.

An actuator includes a plurality of power transmitters configured to transmit power sequentially, and an elastic element configured to connect a first power transmitter and a second power transmitter that are adjacent to each other and perform a coaxial rotation motion, among the plurality of power transmitters. 1. An actuator , comprising:a plurality of power transmitters configured to transmit power sequentially, the plurality of power transmitters including a first power transmitter and a second power transmitter, the first power transmitter and the second power transmitter being adjacent ones of the plurality of power transmitters and configured to perform coaxial rotation motion; andan elastic element configured to connect the first power transmitter and the second power transmitter.2. The actuator of claim 1 , further comprising:a first angle sensor configured to measure a first rotation angle of the first power transmitter;a second angle sensor configured to measure a second rotation angle of the second power transmitter; anda controller configured to determine a torque to apply between the first power transmitter and the second power transmitter based on the first rotation angle and the second rotation angle.3. The actuator of claim 2 , wherein the controller is configured to determine the torque based on a difference between the first rotation angle and the second rotation angle.4. The actuator of claim 1 , further comprising:a motor configured to transmit the power to the plurality of power transmitters; anda case including a motor receiver and a main receiver such that the motor receiver overlaps at least a portion of the main receiver in a direction perpendicular to a drive shaft of the motor, the motor receiver configured to receive the motor, and the main receiver configured to receive the first power transmitter, the second power transmitter, and the elastic element.5. The actuator of claim 4 , wherein the case further includes a cover detachably ...

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Номер записи: 93

27-04-2017 дата публикации

DUAL ACTUATION BALL CONTOUR SYNCHRONIZING CLUTCH

Номер: US20170114839A1

Автор: Ince Marion Jack, Zhong Guihui

Принадлежит: SCHAEFFLER TECHNOLOGIES AG & CO. KG

A dual actuation synchronizing clutch assembly including an improved synchronization arrangement is provided. The dual actuation synchronizing clutch assembly has a plurality of operational phases, including initial, synchronization, positioning, engagement, and running phases that vary the torque flow path between the input shaft and output shaft. A synchronizing assembly is provided that includes a synchronizer ring having a first friction surface and synchronizer teeth. A connecting gear includes a lock-up assembly with retractable elements and connecting gear teeth. An output gear includes a second friction surface configured to frictionally engage the first friction surface of the synchronizer ring, and a contoured receiving path with positioning points configured to receive the retractable elements of the lock-up assembly. 1. A dual actuation synchronizing clutch assembly comprising:an input shaft;a rotatably supported output shaft axially aligned with the input shaft;a connecting gear including a lock-up assembly with retractable elements, connecting gear teeth, and the connecting gear is connected to the input shaft;a first actuator configured to engage a first actuator loading bearing axially against the connecting gear;a synchronizer ring including a first friction surface and synchronizer teeth;an output gear fixed to the output shaft, the output gear including a second friction surface configured to frictionally engage the first friction surface of the synchronizer ring, a contoured receiving path with positioning points configured to receive the retractable elements of the lock-up assembly, and output gear teeth;a shifter sleeve including shifter sleeve teeth that mesh with the connecting gear teeth and the synchronizer teeth, and the shifter sleeve teeth are configured to mesh with the output gear teeth;a second actuator configured to engage a second actuator loading bearing axially against the shifter sleeve;a first spring arranged between the ...

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Номер записи: 94

13-05-2021 дата публикации

DOUBLE CLUTCH ASSEMBLY

Номер: US20210140490A1

Автор: JEONG Euihee, Kam Jeong Heon, KIM Jong Min, LEE Jinwoo

Принадлежит:

A double clutch assembly includes: a center plate, first and second disks, first and second pressure plates, a connecting plate, a cover plate, a pulling cover, first and second diaphragm springs, and a guide plate. In particular, the pulling cover is formed with an engagement recess, an engagement slot is formed at the second diaphragm spring, and the guide plate includes a body, an exterior engagement end protruding toward the second diaphragm spring and inserted into the engagement slot and the engagement recess, an interior engagement end formed at an interior circumference of the body, and a fixing end inserted into an incision slit of the second diaphragm spring. 1. A double clutch assembly , comprising:a center plate;first and second disks disposed at both sides of the center plate;a first pressure plate disposed at a distal side of the first disk;a second pressure plate disposed at a distal side of the second disk;a connecting plate disposed at a distal side of the second pressure plate and configured to receive an engine torque;a cover plate disposed at a distal side of the first pressure plate and fixedly coupled with the center plate;a pulling cover disposed at a distal side of the cover plate and connected with the second pressure plate;a first diaphragm spring disposed between the first pressure plate and the cover plate and configured to introduce an axial direction displacement to the first pressure plate;a second diaphragm spring disposed between the cover plate and the pulling cover and configured to introduce an axial direction displacement of the cover plate; anda guide plate fixedly coupled to the cover plate and configured to guide the second diaphragm spring in an axial direction,wherein the pulling cover is formed in a disc shape and is formed with a plurality of engagement recesses at an interior circumference portion of the pulling cover,wherein a plurality of engagement slots are formed along an exterior circumference of the second ...

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Номер записи: 95

05-05-2016 дата публикации

METHOD OF ADJUSTING CLUTCH CHARACTERISTICS OF DCT VEHICLE

Номер: US20160123411A1

Автор: Cho Sung Hyun, Hur Hwan

Принадлежит:

A method of adjusting clutch characteristics of a Double Clutch Transmission (DCT) vehicle may include determining whether gear shifting has been initiated, updating a T-S curve of a release-side clutch by a transmission torque that is determined using an equation of motion of an engine and a clutch, when a condition in which a difference between an engine speed and a speed of a release-side input shaft is satisfied to be above a first predetermined reference value during a first reference period of time when the gear shifting is determined to have been initiated, and when a torque handover has not been initiated, updating the T-S curve of a connection-side clutch by the transmission torque that has been determined using the equation of motion during a period of time from completion of torque handover to completion of the shifting of gears. 1. A method of adjusting clutch characteristics of a Double Clutch Transmission (DCT) vehicle by a controller , the method comprising steps of:Determining, by the controller, whether gear shifting has been initiated;Updating, by the controller, a T-S curve of a release-side clutch by a transmission torque that is determined using an equation of motion of an engine and a clutch, when a condition in which a difference between an engine speed and a speed of a release-side input shaft is satisfied to be above a first predetermined reference value during a first reference period of time when the gear shifting is determined to have been initiated, and when a torque handover has not been initiated;Updating, by the controller, the T-S curve of a connection-side clutch by the transmission torque that has been determined using the equation of motion during a period of time from completion of torque handover to completion of the shifting of gears.2. The method according to claim 1 , further including:applying the updated T-S curve to an actuator of the clutch.3. The method according to claim 1 , wherein claim 1 , in updating the T-S curve ...

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Номер записи: 96

05-05-2016 дата публикации

Shifting control method for vehicle with dct

Номер: US20160123465A1

Автор: Hwan HUR, Sung Hyun Cho

Принадлежит: Hyundai Motor Co, Kia Motors Corp

A shifting control method for a vehicle with a Double Clutch Transmission (DCT), may include determining whether a manual range power-on up shift has been started, determining whether an actual shifting period has been started, when the manual range power-on up shift has been started, and applying additional predetermined compensation torque to basic torque applied to an engagement-side clutch, when the actual shifting period has been started.

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Номер записи: 97

07-05-2015 дата публикации

ACTIVE ANKLE FOOT ORTHOSIS

Номер: US20150127117A1

Автор: Blaya Joaquin, Herr Hugh, Pratt Gill A.

Принадлежит:

An Active Ankle Foot Orthosis (AAFO) is provided where the impedance of an orthotic joint is modulated throughout the walking cycle to treat ankle foot gait pathology, such as drop foot gait. During controlled plantar flexion, a biomimetic torsional spring control is applied where orthotic joint stiffness is actively adjusted to minimize forefoot collisions with the ground. Throughout late stance, joint impedance is minimized so as not to impede powered plantar flexion movements, and during the swing phase, a torsional spring-damper (PD) control lifts the foot to provide toe clearance. To assess the clinical effects of variable-impedance control, kinetic and kinematic gait data were collected on two drop foot participants wearing the AAFO. It has been found that actively adjusting joint impedance reduces the occurrence of slap foot, allows greater powered plantar flexion, and provides for less kinematic difference during swing when compared to normals. 1. A variable-impedance active ankle foot orthosis comprising an actuator for modulating an impedance of an orthotic joint throughout a walking cycle for treating an ankle foot gait pathology.2. The device of claim 1 , wherein the orthosis includes a torsional spring stiffness control.3. The device of claim 1 , wherein the orthosis includes a spring-damper positional control.4. The device of claim 1 , wherein the actuator is coupled to a foot portion of the orthosis.5. The device of claim 1 , wherein the actuator includes a series elastic actuator.6. The device of claim 1 , wherein the orthosis includes an ankle angle sensor.7. The device of claim 1 , wherein the orthosis includes one or more ground reaction force sensors.8. The device of claim 1 , wherein the orthosis includes an actuator claim 1 , an ankle angle sensor claim 1 , one or more ground reaction force sensors claim 1 , and a controller for controlling the orthosis.9. The device of claim 1 , wherein the orthosis includes a foot switch.10. The device of ...

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Номер записи: 98

07-05-2015 дата публикации

PROSTHETIC, ORTHOTIC OR EXOSKELETON DEVICE

Номер: US20150127118A1

Автор: Barnhart Christopher Eric, Casler, Han Zhixiu, Herr Hugh Miller, JR. Richard J.

Принадлежит: iWalk, Inc.

A time-dependent decay behavior is incorporated into one or more joint actuator control parameters during operation of a lower-extremity, prosthetic, orthotic or exoskeleton device. These parameters may include joint equilibrium joint impedance (e.g., stiffness, damping) and/or joint torque components (e.g., gain, exponent). The decay behavior may be exponential, linear, piecewise, or may conform to any other suitable function. Embodiments presented herein are used in a control system that emulates biological muscle-tendon reflex response providing for a natural walking experience. Further, joint impedance may depend on an angular rate of the joint. Such a relationship between angular rate and joint impedance may assist a wearer in carrying out certain activities, such as standing up and ascending a ladder. 1. A prosthesis , orthosis or exoskeleton apparatus comprising:a proximal member;a distal member;a joint connecting the proximal and distal members, the joint adapted to permit flexion and extension between the proximal and distal members;a motorized actuator configured to apply at least one ofa joint impedance and a joint torque, the joint impedance including at least one of a stiffness and damping, wherein the stiffness is referenced to a joint equilibrium;a sensor configured to detect at least one of a phase and a change in a phase of joint motion in a repetitive cycle; anda controller configured to modulate at least one of the joint equilibrium, the joint impedance and the joint torque, the modulation employing a decaying time response as a function of at least one of the phase and the detected change in phase of joint motion.2. The apparatus of claim 1 , wherein the sensor is configured to detect a state transition phase of gait.3. The apparatus of claim 1 , wherein the apparatus is an ankle prosthesis claim 1 , orthosis or exoskeleton.4. The apparatus of claim 1 , wherein the stiffness is at least one of a Swing-phase stiffness claim 1 , a Controlled ...

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Номер записи: 99

27-05-2021 дата публикации

POLYCENTRIC KNEE JOINT HAVING AN ADJUSTMENT-FREE MULTI-STAGE AIR CYLINDER

Номер: US20210154027A1

Автор: SHEN Hsin-Fa

Принадлежит:

A polycentric knee joint including an adjustment-free multi-stage prosthesis air cylinder. The air cylinder has an air cylinder body, a piston assembly slidably mounted on the air cylinder body, a first check valve mounted in the piston, and a multi-stage air pressure valve mounted inside a lower air way of the air cylinder body. The multi-stage air pressure valve automatically cushions movements of the piston assembly without being adjusted whenever a user of the prosthesis joint walks slowly or quickly, for improved comfort. 1. A polycentric knee joint comprising:first and second anterior links pivotally connected to a chassis and a housing, and a posterior link pivotally connected to the chassis and the housing, an air cylinder arranged for adjustment-free multi-stage movement and pivotally connecting to the first and second anterior links and the housing, the air cylinder comprising: a top portion;', 'a bottom portion, the bottom portion connecting to the first and second anterior links;', 'an air chamber defined inside the air cylinder body; and', 'a lower air way formed in the bottom portion of the air cylinder body and having two ends respectively connected to the air chamber and an outside of the air cylinder body;, 'an air cylinder body having'}a piston assembly slidably mounted on the air cylinder body;wherein the first and second anterior links each have a proximal end connecting to an anterior side of the housing at a first pivot point and a distal end connecting at the anterior side of a distal end of the chassis at a second pivot point, the posterior link connects to a third pivot point at a posterior side of the housing and connects to the chassis at a fourth pivot point.wherein the chassis defines a cavity in which extends at least part of the air cylinder and an adapter below the cavity, the air cylinder having a shaft extending through the adapter and the piston rod extends within the posterior link, the piston rod having a proximal link pivotally ...

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Номер записи: 100