Class / Patent application number | Description | Number of patent applications / Date published |
476011000 | ELECTRIC OR MAGNETIC CONTROL | 11 |
20090280949 | ASSEMBLIES AND METHODS FOR CLAMPING FORCE GENERATION - Mechanisms and methods for clamping force generation are disclosed. In one embodiment, a clamping force generator system includes a permanent magnet bearing coupled to a traction ring and to a torque coupling. The traction ring can be provided with an electromagnetic bearing rotor and the torque coupling can be provided with an electromagnetic bearing stator. In some embodiments, a mechanical load cam, a permanent magnet bearing, and an electromagnetic bearing cooperate to generate a clamping force between the traction rings, the power rollers, and the idler. In other embodiments, a series of permanent magnet bearings and a mechanical bearing configured to produce a clamping force. In one embodiment an electromagnetic bearing is coupled to a control system and produces a specified clamping force that is associated with a torque transmitted in the transmission during operation. In some embodiments, a mechanical load cam produces a clamping force proportional to torque, while a permanent magnet bearing provides a minimum clamping force. | 11-12-2009 |
20100120577 | SPEED ADJUSTING MECHANISM FOR ROLLER TRACTION TOROIDAL CONTINUOUSLY VARIABLE TRANSMISSION - A speed adjusting mechanism for roller traction toroidal continuously variable transmission is disclosed, which comprises an input disk; an output disk coaxially and symmetrically positioned relative to the input disk; a rotation shaft thought the axis of input disk and output disk; a screw rod coaxially connected to the rotation shaft and being rotated accordingly; and a plurality of friction balls respectively contact with the input disk and output disk and rotate same; each friction ball respectively revolved on its own center axis and each center axis respectively connected to a supporting bracket and each supporting bracket respectively connected to an arc-shaped screw gear; wherein the screw rod is engaged to the screw gears so that they will rotate correspondingly to let each center axis tilt to the same extent so that the input disk and out disk will have different rotation rate. | 05-13-2010 |
20100273602 | TRACTION DRIVE SYSTEM - A traction drive system for an articulated robotic arm. The traction drive system can include an input drive disk, a spider, an array of traction balls, a traction plate, an output drive shaft, a clamping device to load the traction balls, and an absolute rotation position sensor system. The rotation of the output drive shaft can be coupled to the rotation of the input drive disk while the traction balls are frictionally engaged to the drive disk surface and traction plate surface. The rotational connection can be decoupled when the traction balls are not frictionally engaged to the drive disk surface and traction plate surface. A rotational position sensor located in proximity to the traction drive can provide absolute rotational position feedback of the output drive shaft. | 10-28-2010 |
20110207577 | FAN CLUTCH SYSTEM AND METHOD - Some embodiments of a fan clutch system for use in a vehicle can provide efficient access to one or more components for inspection and service even after the fan clutch system is installed in the vehicle. In particular embodiments, the fan clutch system can include a fan clutch device and a coil retainer assembly that are removably mounted to a right-angle gear box assembly in a manner that permits a technician to accessing at least one component for inspection, repair, or replacement. The coil retainer assembly may at least partially house an electromagnetic coil for selective activation. The system may further include a fan clutch device removably mounted to the drive member of the gear box assembly. | 08-25-2011 |
20130225360 | Electric Drive for a Bicycle - The invention relates to an electric drive for a bicycle. The electric drive comprises an electric motor and a contact roller having an outer contact surface. The motor comprises a stator having plurality of stator coils as well as corresponding magnetic rotor elements. The rotor elements are fixedly attached to an inner surface of the contact roller. According to the invention, the contact roller encloses the stator. Particular embodiments provide a mounting assembly for mounting the electric drive to the bicycle's frame, preferably at a component of the bicycle adapted for mounting a kickstand recess. | 08-29-2013 |
20130324355 | CONTAINMENT CONTROL FOR A CONTINUOUSLY VARIABLE TRANSMISSION - A speed ratio containment process limits the speed ratio of a variator for a CVT for a motor vehicle when rolling backward by commanding a speed ratio that is higher than the actual speed ratio in an overdrive direction. Accordingly, the actual speed ratio moves to a lowest limit, which provides maximum torque when a driver of the motor vehicle steps on the accelerator pedal to resume forward motion of the motor vehicle. | 12-05-2013 |
20130337970 | Anhaenger-Rangierantrieb - A maneuvering drive for a trailer includes a fastening device, a carrier, a drive motor as well as a drive roller. The fastening device is provided for fastening the maneuvering drive to the trailer. The carrier is movable relative to the fastening device and holds the drive motor. The drive roller is rotatably drivable by the drive motor which is a brushless electric motor with an external rotor. | 12-19-2013 |
20140038771 | ELECTROMOTIVE DRIVES - A transmission having a plurality of tilting balls and opposing input and output discs provides an infinite number of speed combinations over its transmission ratio range. The transmission provides multiple powerpaths and can be combined with electrical components to provide motor/generator functionality, which reduces the overall size and complexity of the motor and transmission compared to when they are constructed separately. In one embodiment, rotatable components of a continuously variable transmission are coupled separately to an electrical rotor and to an electrical stator so that the rotor and stator rotate simultaneously in opposite directions relative to one another. In other embodiments, an electrical rotor is configured to transfer torque to or from a disc that is in contact with a plurality of speed adjusters, while an electrical stator is configured to transfer torque to a shaft that is operationally coupled to the speed adjusters via an idler. | 02-06-2014 |
20140349804 | ROLLER DEVICE FOR A TRACTION MECHANISM DRIVE OF A MOTOR VEHICLE - A roller device for a traction mechanism drive of a motor vehicle, with a roller element for introducing a torque provided via the traction mechanism and a driven shaft for driving an auxiliary unit. The roller device has a magnetic coupling for non-positive torque transfer between the roller element and the driven shaft. The magnetic coupling has a primary-side unit connected to the roller element with a primary magnetic element and a secondary-side unit connected to the driven shaft with a secondary-side magnetic element. The magnetic elements are permanent and/or electromagnetic elements. The non-positive torque transfer is realized by magnetic fields of the primary-side and secondary-side magnetic elements. At least one magnetic element of the two units for changing the magnetic field overlap of the magnetic fields of the primary-side and secondary-side magnetic elements is movably arranged within its unit. A corresponding traction mechanism drive and method are provided. | 11-27-2014 |
20150018167 | ELECTRIC AUTOMOBILE DRIVE APPARATUS - Construction of an electric automobile drive apparatus is realized in which the relationship of the traveling speed and acceleration of a vehicle can be made smooth and closer to the ideal, and the transmission efficiency can be maintained. A bypass gear-transmission mechanism | 01-15-2015 |
20150018168 | MAGNETIC GEARS, AND RELATED SYSTEMS AND METHODS - A magnetic gear may comprise a first gear member comprising a plurality of permanent magnets arranged to have a first number of magnetic pole pairs and a second gear member positioned relative to the first gear member. The second gear member may comprise a plurality of individually rotatable magnetized elements each driven and synchronized with one another to selectively generate a second number of magnetic pole pairs that differs from the first number of magnetic pole pairs. The magnetic gear may further comprise a plurality of interpole elements positioned between the first and second gear members. The plurality of interpole elements may be disposed to harmonically couple the magnetic pole pairs of the first gear member with the magnetic pole pairs of the second gear member for each selectively generated second number of magnetic pole pairs. | 01-15-2015 |