Abstract: Provided is a fraction motor including: a hub housing of the bike; a fixing shaft centrally mounted at the hub housing; a motor mounted inside of the hub housing and coaxially arranged with the fixing shaft; a rotation shaft rotatably arranged at the center of the motor to output a turning effect of the motor; and a transmission including a sun gear connected to the rotation shaft and assembled in a separate part receiving power of the motor, a planetary gear meshed with the sun gear to transmit the power of the motor to the hub housing and a ring gear

Abstract: A wheel is provided with a motor having a stator and a rotor and has with a fixed-side member supporting the stator and a rotative-side member receiving rotation transmitted from the rotor. The wheel is supported between a pair of arms with a wheel axle. An axle rotatively supports the rotor and the rotative-side member. An engaging part is provided for engagement with the fixed-side member to position the center of rotation of the rotative-side member with respect to the fixed-side member. The fixed-side member and the rotative-side member are integrated by engagement of the engaging part with the fixed-side member. This configuration allows the axle to be positioned with respect to the fixed-side member, such that the centers of holes in the axle and the fixed-side member for insertion of the wheel axle will be in alignment. The unit U is then incorporated in between the pair of arms.

Abstract: Provided is a wheel driving device which drives a wheel by output rotation of a reduction device disposed on an inside in a radial direction of the wheel. The reduction device includes an output member connected to the wheel, and a pair of bearings supporting the output member. In the pair of bearings, the bearing on a side opposite to a vehicle body has a smaller outer diameter than that of the bearing on a vehicle body side. An injection passage member of a medium injected into the wheel may be disposed on an outside in a diameter direction of the bearing on the side opposite to the vehicle body.

Abstract: An object of the present invention is to reduce an axial dimension of an in-wheel motor driving device in which a motor section A and a wheel hub bearing section C are connected coaxially in series via a speed reducer section B, thereby providing a large inside space of a vehicle as well as increasing freedom of routing a power supply wires. A terminal box for the power supply wires which supply power to the motor section A is disposed on the outer circumferential side surface of the housing which holds the motor section A. The power supply wires are routed out of the terminal box to an inboard side and are anchored by a power supply wire holder which extends perpendicularly to an axial centerline of the housing.

Abstract: There is described a power-driven wheel for a military vehicle, having an axial-flow electric motor, and a hub connected functionally to the motor and rotating about an axis; the motor has an output member housed inside the hub; and the wheel has an epicyclic reducer interposed functionally between the hub and the output member.

Abstract: An in-wheel motor drive apparatus is provided that facilitates the dissipation of the heat generated by a motor and that is excellent in cooling performance. A range (L) of number of revolutions within which a motor (B) generates a maximum torque by low-speed-rotation includes a high-output sub-zone (LH) in which a torque is no less than 50% of the maximum torque. In the high-output sub-zone, a loss in a stator represents no less than 50% of a loss in the motor (B), with the loss in the motor consisting of copper loss and core loss. The motor (B) may include cooling medium passage(s) (45) configured to cool coil portion(s) (28) of the stator (23) with a cooling liquid, and the copper loss may represent no less than 25% of the loss in the motor (B).

Abstract: A motorized hub for electric powering of an axle of a hybrid drive automotive vehicle, said motorized hub comprising a hub designed to receive a wheel, the hub being mounted rotationally relative to a hub carrier about a hub axis, the motorized hub comprising an electric drive motor, the electric motor comprising an external stator connected to the hub carrier and an internal rotor whose axis of rotation is remote from the hub axis, the motorized hub comprising reduction means acting between the rotor of the electric motor and the hub, the motorized hub comprising coupling/uncoupling means capable of adopting a coupling position in which rotation of the electric motor is coupled to the rotation of the hub and an uncoupling position in which rotation of the electric motor is uncoupled from the rotation of the hub, the motorized hub being characterized in that the coupling/decoupling means are arranged between the reduction means and the hub.

Abstract: The invention relates to an axle module for a motor vehicle, the axle module being composed of two control arms which can be fixed to the body structure via a pivotal bearing, support the wheels of the axle and are connected to each other by an axle body. According to the invention, each control arm comprises a receiving element for a drive, particularly an electric motor, particularly a wheel hub motor. The receiving device is designed such that it forms the carrier for the stator.

Abstract: A wheel assembly having a motor attached to a hub within the wheel assembly such that the motor powers the wheel assembly to rotate about an axle once the motor receives a predetermined amount of power. A battery system is configured to deliver power to said motor, the battery system is arranged to rotate with the wheel assembly. A sensor system within the wheel assembly that provides data to a control system related to velocity and angle of orientation of the assembly. A load transferring quick-release mechanism is also disclosed for coupling the wheel assembly to a vehicle wheel attachment frame member and a method is provided for calibrating the same.

Abstract: To provide a sensor equipped and in-wheel motor incorporated bearing device for a vehicle wheel, which is capable of accurately detecting a rotating condition of a vehicle drive wheel and is effective to accurately control an electric drive motor or an automotive vehicle, the sensor equipped and in-wheel motor incorporated bearing device includes a wheel support bearing assembly for rotatably supporting a hub of the vehicle drive wheel, an electric drive motor providing a rotation device source for the vehicle drive wheel, and a speed reducing mechanism interposed between the electric drive motor and the wheel support bearing assembly. A rotation detecting device is also provided for detecting the rotation of an output shaft of the speed reducing mechanism.

Abstract: A casing has an inner end, an outer end, and an internal drive mechanism. The internal drive mechanism has an outer wheel mounting hub at the outer end of the casing and an inner wheel mounting hub at the inner end of the casing, both supported for rotation about an axis. A motor operates the internal drive mechanism to impart rotation to the wheel mounting hubs with equal force whilst allowing the wheel mounting hubs to rotate at different speeds. The internal drive mechanism further has a carrier that is disposed between the inner wheel mounting hub and the outer wheel mounting hub and that is rotated about the axis by the motor. The carrier contains a differential gear mechanism having an outer output shaft for imparting rotation to the outer wheel mounting hub and an inner output shaft for imparting rotation to the inner wheel mounting hub.

Abstract: An electric vehicle includes an axle that is a hollow cylindrical shaft. A motor shaft is inserted into a hollow portion of the axle substantially coaxially with the axle. In this case, on one side of a wheel, a motor is connected to a base end of the motor shaft extending from one end of the axle. Also, on the other side of the wheel, a reduction mechanism is connected to a leading end of the motor shaft extending from the other end of the axle.

Abstract: An in-wheel motor drive device is attached to an inner side of a wheel of a vehicle wheel and drives the vehicle wheel. The in-wheel motor drive device includes a rotating electric machine; a transmission mechanism that transmits the rotation of the rotating electric machine; a speed reducing mechanism that reduces in speed the rotation transmitted by the transmission mechanism; and an output shaft that outputs the reduced-speed rotation of the speed reducing mechanism to the wheel. The speed reducing mechanism and the output shaft are disposed on a first axis coaxial with a center of the wheel. The rotating electric machine is disposed on a second axis parallel to the first axis, and the rotating electric machine and the speed reducing mechanism are positioned in a radial cross section perpendicular to the first axis and the second axis.

Abstract: An electrical drive unit for a motor vehicle, with the drive unit including a wheel hub drive that drives a vehicle wheel. The wheel hub drive has a sealing element which is affected by friction and by means of which the interior of the wheel hub drive is sealed off from the surroundings in an airtight manner. A ventilation device is provided by which a pressure difference between the prevailing air pressure in the interior of the wheel hub drive and the prevailing air pressure of the surrounding air can be compensated by displacing volumes of air.

Abstract: The in-wheel motor drive assembly 21 includes: a motor unit A; a wheel hub bearing unit having a tubular wheel hub 32, a cylindrical outer-ring-side member 22c surrounding the outer circumferential surface of the wheel hub, and a wheel hub bearing 33 disposed in an annular space formed between the outer circumferential surface of the wheel hub and the inner circumferential surface of the outer-ring-side member to rotatably support the wheel hub; and a speed reduction unit 101 being a speed reduction mechanism having an output shaft 28 extending in one direction and an input shaft 25 extending in the other direction and reducing the rotational speed of the input shaft and transmitting the reduced rotation to the output shaft, the output shaft being fixedly inserted in the center of the wheel hub 32 and the input shaft being fixedly inserted in the motor rotary shaft 35.

Abstract: A wheel frame for a vehicle including a unitary cylindrical body having a radially inward facing surface and a radially outward facing surface surrounding a wheel axis and extending from an integrally formed mounting flange to an open hub end. The radially inward facing surface of the body including a portion adjacent the hub end of the body that is enlarged for receiving at least a portion of an electric motor assembly.

Abstract: An in-wheel motor drive assembly 21 includes: a motor unit A; a speed reduction unit B having an output shaft 28 reducing the rotational speed of the motor rotary shaft 35 and outputting the reduced rotation and a speed-reduction-unit casing 22b forming a contour, and disposed on one axial side of the motor unit A; a wheel hub bearing unit C having a wheel hub 32 fixedly coupled with the output shaft 28 and a wheel-hub-bearing outer ring 22c rotatably supporting the wheel hub 32, and disposed on one axial side of the speed reduction unit B; and coupling portions 63, 64 secured to at least one of the wheel-hub-bearing outer ring 22c and speed-reduction-unit casing 22b to couple with members of a vehicle body.

Abstract: A wheel assembly for a vehicle may include a rim and an energy recovery system. The energy recovery system may include a flywheel and an infinitely variable transmission (IVT). The flywheel may be concentric with the rim and operable to rotate relative to the rim. The IVT may be positioned within the flywheel and couple the rim to the flywheel. When the vehicle is decelerating and an angular velocity of the rim is greater than an angular velocity of the flywheel, kinetic energy of the rim may be imparted to the flywheel and stored as mechanical potential energy thereby providing a braking force to the vehicle. Alternatively, when the vehicle is accelerating and the angular velocity of the rim is less than the angular velocity of the flywheel, the mechanical potential energy of the flywheel may be imparted to the wheel thereby providing an accelerating force to the vehicle.

Abstract: A wheel hub unit includes a wheel hub, a hydraulic motor and at least one bearing for supporting the wheel hub and the hydraulic motor. The wheel hub unit comprises a first seal for protecting the at least one bearing from hydraulic oil from the hydraulic motor.

Abstract: This air-cooled type in-wheel motor drive assembly 21 includes a lubrication oil circuit for lubricating a speed reduction unit B by allowing lubrication oil discharged from a lubrication oil pump 51 to flow through interconnected oil passages 54, 55, 56 provided to a casing 22, motor-rotary-shaft oil passage 57, speed-reduction-unit input-shaft oil passage 58 and interior of the speed reduction unit B, and for cooling a motor unit A and the speed reduction unit B with the lubrication oil cooled with the aid of outer fins 22f while flowing through the oil passages 54, 55, 56 provided to the casing.

Abstract: The invention relates to a self-contained drive system (1) for a vehicle wheel, including a casing (2), accumulators (3) which store and release the energy needed for the self-contained operation of the system, at least one electric motor (4) capable of generating a rotational movement, a controller (5) which manages the control of the electric motor (4) and of the accumulators (3), and a rotational shaft (6) for the self-contained drive system (1). The system is characterized in that the housing (2) directly supports and stands together the accumulators (3), the electric motor(s) (4) and the controller (5), and the system does not include any metal wear parts in (the) mechanical transmission(s) of the rotational movement.

Abstract: An internal motorized bicycle hub includes a hub axle, a motor, a first bearing, a second bearing, a spacer and a movement restricting section. The motor has a rotor and a stator. The first and second bearings rotatably support the rotor on the hub axle. The second bearing is axially spaced apart from the first bearing. Each of the first and second bearings includes an inner race attached to the hub axle, an outer race attached to the rotor, and a rolling element arranged between the inner and outer races. The spacer is arranged between the inner races. The movement restricting section restricts movement of the inner race of the first bearing in a direction of separating from the bearing of the second bearing. The spacer presses the bearing of the first bearing towards the movement restricting section.

Abstract: A method and assembly for mounting an auto rim and either motorcycle or auto tire as a motorcycle rear wheel. The assembly allows tires of different widths and diameters to be used on the rear of motorcycles that have single side swing arms and standard swing arms. The method and assembly allows a left side or right side drive which can be a belt or chain. A hub with bearings and spacers are mounted with a brake rotor disk and a drive pulley in tandem to produce a hub assembly.

Abstract: An internal motorized bicycle hub includes a hub axle, a motor, a partitioning wall section and at least one soundproofing member. The motor includes a stator. The partitioning wall section has least one opening and the stator mounted thereon. The at least one soundproofing member is disposed adjacent the partitioning wall section and blocking the at least one opening.

Abstract: System and method for the combination of a flywheel and motor/generator inside a wheel hub for hybrid vehicle propulsion. The flywheel and motor/generator are connected by a planetary gear system, in which a first port is connected to the flywheel, a second port is connected to the wheel hub, and a third port is connected to a motor/generator. An additional motor/generator may be used at one of the first port and second port. The system may be used in an electric-kinetic hybrid mode, or in a fuel-kinetic hybrid mode, when used in a vehicle having an internal combustion engine as the prime mover. Efficiency of energy storage and release is significantly improved in comparison to prior art.

Abstract: MAW-DirectDrives are a mechanical direct drive mounting apparatus incorporating paired prefabricated frameless direct drive permanent magnets brushless motor stators as actuators. The stators mount on enhanced cooling stator mounting backs connected to a stationary sub-assembly mounting-plate that support vehicle suspensions on its rear. A drive-plate and spindle sub-assembly connected inside vehicle wheels fastens the two sub-assemblies and holds a cylindrical two-sided permanent magnets drive-rotor concentrically disposed between the stators and proximate to the stators' core peripheral surfaces to interact and actuate rotation about the stationary sub-assembly's cylindrical wheel-hub.

Abstract: The present invention relates to motor assisted movement as well as to mobile X-ray systems comprising at least one bidirectional wheel. Positioning heavy objects in in particular confined spaces with high precision may be a cumbersome and tedious task. Consequently, a motor assisted movement assembly as well as an X-ray system comprising at least one bidirectional wheel is presented. According to the present invention a motor assisted movement assembly (19) comprising at least one bidirectional wheel (18) and a motor arrangement associated with the at least one bidirectional wheel (18) is provided. The motor assisted movement assembly (19) is adapted to move on a surface, wherein the at least one bidirectional wheel (18) is adapted to roll in at least a first direction (20) and in at least a second direction (22), with the first direction (20) and the second direction (22) being non-parallel.

Abstract: An electric power assist system for use with a pedal vehicle. The system has (a) an electric motorized wheel (2) including a plurality of spokes (8) extending from the motor housing to the rim (6), at least one the spoke (8) configured so as to define within it a battery compartment (20) in which at least one power supply battery (22) is deployed, wherein the battery compartment (20) lies in the planer region substantially defined by the outer sides of the rim (6); (b) a wireless throttle control in RF communication with the wheel (2); and (c) a wireless pedal assist sensor in RF comunication with the wheel (12) and configured to deteect movement of the pedal vehicle and transmit command signals to the wheel so as to start power assist operation, and to stop the power assist operation as determined by the movement of the pedals.

Abstract: An assembling structure for wheel and hub of an electric bicycle is disclosed, the structure capable of firmly assembling a hub and a wheel by separately manufacturing the hub embedded with a motor and a transmission gear box from the wheel, the structure including a hub accommodating a motor therein, a wheel coupled to one side of the wheel by way of a sliding method, a groove unit circumferentially arranged at a periphery of the hub, and a lug unit formed at an area coupled to the hub of the wheel and meshed with the groove unit to allow the wheel to rotate with the hub, whereby coupling of the wheel and the hub is simplified to reinforce the coupling force therebetween.

Abstract: In a first aspect, the invention is directed to a wheel assembly for a vehicle, including a non-rotating support member, a wheel and an electric motor. Loads incurred during vehicle use can cause dynamic flexing of portions of the wheel. The wheel assembly in accordance with the first aspect of the invention has a load path for loads incurred by the wheel that passes from the wheel to the non-rotating support member without passing through the motor, thereby reducing a potential source of distortion of the gap in the motor (between the motor's rotor and stator) during the aforementioned flexing.

Abstract: A drive mechanism includes a rotatable steering unit, a wheel supported by the steering unit, a drive member rotating about an axis extending along a center axis of the steering unit, an output shaft located at an offset position from the center axis of the steering unit and transmitting rotational force of the drive member to the wheel. The drive member includes a first drive unit driven in a forward rotation direction and a second drive unit driven in a reverse rotation direction and located coaxially with the first drive unit. The output shaft includes a first output unit to which driving force is transmitted from the first drive unit, and a second output unit to which driving force is transmitted from a conversion unit for converting rotation of the second drive unit, is restricted by both the output units, and transmits rotational force obtained from the output units to the wheel.

Abstract: An electric wheel for electric vehicles includes a rim, connecting members, a hub motor, a battery, and a control device. The connecting members are connected to an inside of the rim and the hub motor is connected to the connecting members. The hub motor includes a shaft, a rotor and a stator. The shaft is located on a central axis of the rim and two ends of the shaft are fixed to a vehicle frame. The battery is located on the rim and the control device receives a wireless command signal and generating a control signal to control the battery to provide power to the hub motor, and to allow the hub motor to operate. The rim is equipped with the battery and the hub motor and directly connected to the vehicle frame without wires connected to the vehicle frame.

Abstract: This invention relates to a wheel driven mechanism for a vehicle such as a wheelchair, an electrical bicycle, or a motorcycle, especially to a vehicle which has a wheel driven by power but without using an independent electric motor. The wheel driven mechanism comprises a rotor, a plurality of permanent magnets, a stator, and a plurality of electromagnets. The rotor is divided into a first block and a second block, and the permanent magnets are disposed within the first block to reduce the weight and the cost of the wheel driven mechanism. Furthermore, the user can easily rotate the handwheel mechanism during power off.

Abstract: Wheel for a vehicle operable by muscular force and in particular for a bicycle with an auxiliary motor and with a hub comprising a hub axle and a hub body rotatably supported relative to the hub axle. Furthermore the wheel comprises a rim with a rim base and a rim well and rim flanks. The rim is connected with the hub through a plurality of spoke devices. Each of the spoke devices comprises one spoke nipple and one spoke. The rim base is provided with passage openings through which the spoke devices extend into the rim. The hub is provided with an electric drive as an auxiliary motor and a ratio of the outer diameter of the hub to the outer diameter of the rim is higher than 1:5. The clear inner diameter of a passage opening is at least 50% larger than an outer diameter of the spoke device at the passage opening.

Abstract: A motor wheel assembly for a motor vehicle comprises a radial flux brushless electric motor having a plurality of stator magnets arranged along a circumferential path; a wheel; first connecting means to connect motor to wheel in a torque transfer manner and second connecting means suitable for connecting motor to the motor vehicle. The motor wheel assembly defines a seat interrupting the sequence of stator magnets along the circumferential path and is suitable for housing a caliper of a braking system of the motor vehicle.

Abstract: An integrated wheel and an electric scooter using the wheel are disclosed. The electric scooter comprises an operation level and a footrest. The operation lever is provided with a front wheel at a lower end thereof. The footrest is provided with a rear wheel at a rear end thereof. At least one of the front and rear wheels is an integrated wheel. The integrated wheel comprises a wheel rim and a rubber tire. The external periphery of the wheel rim is provided with a plurality of positioning grooves. The rubber tire is integratedly formed on the external periphery of the wheel rim and has an internal periphery provided with a plurality of blocks each of which is correspondingly engaged into one of the positioning grooves. Thereby, the wheel rim can be firmly fixed with the rubber tire so as to prolong the lifetime of the wheel and ensure the driving safety.

Abstract: There is described a power-driven wheel for a military vehicle, having an axial-flow electric motor, and a hub connected functionally to the motor and rotating about an axis; the motor has an output member housed inside the hub; and the wheel has an epicyclic reducer interposed functionally between the hub and the output member.

Abstract: There is described a power-driven wheel for a military vehicle, having an axial-flow electric motor, and a hub connected functionally to the motor and rotating about an axis; the motor has an output member housed inside the hub; and the wheel has an epicyclic reducer interposed functionally between the hub and the output member.

Abstract: A motor and brake assembly includes a mounting member. A stator winding assembly, a brake assembly, a hub, and a rotor magnet assembly. The stator winding assembly is mounted to the mounting member. The brake assembly is operably connected to the mounting member. The hub is rotatably coupled to the mounting member. The rotor magnet assembly is mounted to an inside of a radially outer wall of the hub. The brake assembly is operable to move a component of the brake assembly between an engaged position where the component engages the inside of the radially outer hub wall and a disengaged position where the component is spaced apart from the inside of the radially outer hub wall.

Abstract: A braking mechanism is provided for a hydraulic motor driven wheel utilizing a two-piece design of a hub that rotates by means of a drive shaft. A hydraulic chamber is created on the hub in which a piston resides. The piston is grounded (i.e., non-rotatable relative to the motor housing) in the sealed chamber. The piston face inside of the chamber has a radial set of face teeth. These face teeth are similar to the face teeth inside of the hydraulic chamber. When the chamber is pressurized, the piston face teeth are pushed away from the hub face teeth allowing the hub to freely rotate. When pressure is released from the chamber, a spring, or a number of springs, push the piston into the hub causing it to stop rotating relative to the piston.

Abstract: A brake device for an in-wheel motor according to the invention can be easily attached to inside of the wheel. The vehicle wheel is driven by the in-wheel motor attached to the inside of the wheel. The in-wheel motor transmits the rotation of the rotor to the vehicle wheel with a speed reduced by the planetary gear set. In the brake device, the brake motor is rotated to move the plunger in an axial direction. Thus, the brake device squeezes or presses the disc which rotates with the rotor with the first pad and the second pad to apply braking force between the rotor and the planetary gear set. Accordingly, there is no need to prepare a hydraulic pressure source, a hydraulic cylinder and a hydraulic pressure conduit system and the brake device can be decreased in size and can be easily attached to the inside of the wheel.

Abstract: A wheel assembly includes a tire and an electrical motor having a stator and a rotor. The wheel assembly also includes a rim that is encircled by the tire. At least one of the stator and rotor is directly exposed to the rim. Both the stator and the rotor are housed by the rim. The electrical motor is operable to drivingly rotate the rim and the tire.

Abstract: A wheel assembly having a motor attached to a hub within the wheel assembly such that the motor powers the wheel assembly to rotate about an axle once the motor receives a predetermined amount of power. A battery system is configured to deliver power to said motor, the battery system is arranged to rotate with the wheel assembly. A sensor system within the wheel assembly provides data related to velocity and angle of orientation of the assembly. A control system within the wheel assembly receives data related to velocity and angle of orientation of the wheel assembly from the sensor system, with the control system having at least one output to from the battery system indicative of an amount of power that is delivered to the motor.

Abstract: A system and method for powering of a vehicle is disclosed. In accordance with embodiments of the present disclosure, a powering assembly may include an axle, a wheel coupled to the axle, and at least one secondary coil winding affixed to the wheel. The wheel may be configured to rotate about the axle in a plane substantially perpendicular to an axis of the axle. The at least one secondary coil may be configured such that when the wheel is proximate to an embedded conductor embedded in a roadway and carrying a first electrical current, a magnetic field induced by the first electrical current induces a second electrical current in the at least one secondary coil winding.

Abstract: A drive unit for a vehicle is provided for use as a robot in pipe systems, cavities or the like. The drive unit includes at least one ring-like outer wheel and at least one driven magnetic wheel. The outer and the magnetic wheels have axes parallel to each other and are arranged eccentrically to one another, and engage one another such that when rotating relative to the outer wheel, the magnetic wheel delineates with its wheel axis a concentric circle lying within the outer wheel. In such a drive unit, stronger magnetic adhesion is enabled by the outer and magnetic wheels being arranged one behind the other in an axial direction. The engagement between the outer and magnetic wheels is effected by a circular, concentric disk connected securely against rotation to the magnetic wheel and rolls with its outer peripheral surface on the inner peripheral surface of the outer wheel.

Abstract: The invention relates to a method for mounting a tyre on a rim or demounting a tyre from a rim, wherein the wheel (tyre/rim assembly) is rotated by an electric motor (12) about an axis (A), wherein the motor current fed to the electric motor (12) is controlled dependent on the rotational speed and torque required for the mounting and/or demounting operation, and wherein the motor current is automatically changed to apply a high torque peak, when the measured motor current is greater than a preset limit at a low rotational speed during a preset time.

Abstract: A brake structure for a wheel rotating device includes a motor provided in a wheel and is driven for rotating the wheel, and a braking mechanism for actuating brake to brake the wheel. The motor includes: a motor housing; a stator positioned in and fixed to the motor housing; and a rotor positioned in the motor housing and facing to the stator. The braking mechanism includes: a brake rotor to rotate with the wheel; frictional members to be in contact with the brake rotor for generation of braking force; a pressing force generating unit for generating pressing force of the frictional members so that the frictional members are urged to and pressed against the brake rotor by supplying brake fluid through a brake fluid passage to transmit fluid pressure; and a housing for the pressing force generating unit. The brake fluid passage is formed inside a wall of the motor housing, and is connected to a brake fluid supply port provided in the housing for the pressing force generating unit.

Abstract: Embodiments of hybrid sensor-enabled and autonomous electric wheels can include a plurality of systems and devices integrated into a single compact hub unit that can be retrofitted into numerous types of two-wheeled bicycles. In one embodiment, an electrically motorized bicycle wheel can include a wheel rim, a wheel hub having an electric motor, a battery pack and a control unit configured to control a drive torque of the electric motor, and a plurality of wheel spokes connecting the wheel rim to the wheel hub. The electric motor, the battery pack and the control unit can be positioned within the wheel hub of the electrically motorized bicycle wheel.

Abstract: An in-wheel motor drive unit (21) includes a motor portion A, a speed reduction portion B, and a wheel hub C. The speed reduction portion B includes outer pins (27) engaging with circumferences of curve plates (26a) and (26b) to generate rotation movements of the curved plates, and an outer pin holding portion (45) fixedly fitted in an inner diameter surface of a casing (22) holding the speed reduction portion B, to hold the outer pins (27) parallel to a rotation axis of a motor side rotation member (25). The outer pin holding portion (45) includes a cylindrical portion (46), a pair of ring portions (47) and (48) extending from axial both ends of the cylindrical portion (46) to radially inner side, and a pair of outer pin holding holes (47a) and (48a) provided at opposed positions of the pair of ring portions (47) and (48), and extending parallel to the rotation axis of the motor side rotation member (25) to hold the axial ends of the outer pin (27).

Abstract: A bicycle wheel with a tri-flange hub includes a hub with a first flange, second flange, and a third flange. The rim of the bicycle wheel is connected to the first, second and third flanges by spokes. The third flange is located on the hub along a centerline which passes through the center of the rim.