With Motor In Or Moveable With Wheel Patents (Class 180/65.51)
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Patent number: 7800277Abstract: A vehicle drive unit includes a crank case with a crank shaft operatively disposed therein and an attached axial gap type rotating machine. The crank shaft is driven via internal combustion to rotate about a center axis. The axial gap type rotating machine includes a rotor fixed to an end of the crank shaft that extends outside of the crank case and a stator fixed to the crank case and facing the rotor. The stator includes a first stator that has first teeth that form the magnetic flux generating area and a second stator that has second teeth. A gap between the first teeth and the second teeth can be varied to vary magnetic resistance by rotating the second stator relative to the first stator. Preferably, a drive mechanism is provided to rotate the second stator relative to the first stator.Type: GrantFiled: February 5, 2008Date of Patent: September 21, 2010Assignee: Yamaha Hatsudoki Kabushiki KaishaInventor: Hiroyuki Kaminokado
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Patent number: 7798264Abstract: An apparatus and a method for robotic control that allows an unbalanced pendulum robot to raise its Center of Mass and balance on two motorized wheels. The robot includes a pair of arms that are connected to the upper body of the robot through motorized joints. The method consists of a series of movements employing the arms of the robot to raise the robot to the upright position. The method comprises a control loop in which the motorized drives are included for dynamic balance of the robot and the control of the arm apparatus. The robot is first configured as a low Center of Mass four-wheeled vehicle, then its Center of Mass is raised using a combination of its wheels and the joint located at the attachment point of the arm apparatus and the robot body, between the rear and front wheels; the method then applies accelerations to the rear wheels to dynamically pivot and further raise the Center of Mass up and over the main drive wheels bringing the robot into a balancing pendulum configuration.Type: GrantFiled: November 2, 2006Date of Patent: September 21, 2010Inventors: Timothy L. Hutcheson, Jerry E. Pratt
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Patent number: 7798262Abstract: A vehicle has at least three drive axles each with a pair of drive wheels, a steering system that directly controls the steering angle between at least two of the drive axles. The vehicle is arranged so that all drive wheels on its right hand side and left hand side, respectively, essentially follow the same wheel tracks when it is driven. The frequency of rotation is individually controllable for each drive wheel. The vehicle includes differential compensating elements arranged to register the relative steering angle for each consecutive pair of drive axles, respectively, and the mutual frequency of rotation for the drive wheels of each drive axle is controlled by the registered relative steering angle associated with the axle. A drive axle arrangement for such a vehicle is also disclosed.Type: GrantFiled: November 12, 2007Date of Patent: September 21, 2010Assignee: El-Forest ABInventor: Lennart Lundström
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Publication number: 20100230194Abstract: A direct drive traction vehicle motor system for a wheeled vehicle includes an electric motor rotor for mechanically attachment to a vehicle wheel for rotational movement with the vehicle wheel. An attachment structure is concentrically mounting the rotor to the vehicle wheel. An electric motor stator is mounted in a concentric relationship with the rotor. A mechanical structure is coupled between the vehicle and the stator for inhibiting rotation of the stator. An electric drive circuit is electrically coupled to the motor stator for exciting the motor stator to impart a rotational force on the vehicle wheel through the rotor.Type: ApplicationFiled: January 19, 2010Publication date: September 16, 2010Inventor: Harry K. James
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Publication number: 20100224430Abstract: A power axle for assisting an automotive vehicle in ascending and descending steep slopes and grades includes an electromagnetic motor mounted to one floating axle of the vehicle, a junction box mounted to and electrically connected to the electromagnetic motor, a DC/AC power inverter mounted to the cab interposed between and for electrically interconnecting the vehicle's battery to the electromagnetic motor for powering the motor from the battery and control switches mounted on the dashboard and which include an on/off switch and a speed control dial for regulating and controlling the interaction and engagement of the electromagnetic motor with the floating axle of the vehicle.Type: ApplicationFiled: March 5, 2009Publication date: September 9, 2010Inventors: Lawrence R. Bennett, SR., Carol L. Bennett
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Patent number: 7789175Abstract: A wheel assembly for a small-scale machine includes a pair of opposing, individually-driven wheels, associated motors and possibly one or more gear assemblies. The motors receive separate drive signals from a control electronics subsystem of the wheel assembly. The motors can be connected to the wheels via the gear assemblies. Because the wheels are separately driven, driving the two wheel assemblies at similar or different speeds drives the wheel assembly over straight or curved paths. An orientation assembly allows the orientation of the wheels to the machine to be controllably altered. A height adjusting assembly allows the distance between the wheels and a point on the machine where the wheel assembly is attached to be adjusted. The rotational axis that the wheel assembly rotates about when re-oriented need not pass through either wheel of the wheel assembly. The wheels can be driven by control signals generated by on-board control electronics.Type: GrantFiled: October 11, 2005Date of Patent: September 7, 2010Assignee: Cycogs, LLCInventors: Wayland E. Tobey, Peter D. Davis
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Patent number: 7789178Abstract: A wheel support device (200) includes a spring (302, 304) fitted to an in-wheel motor (70) and damping the vibration of a motor-driven wheel (100) and the in-wheel motor (70) by extending and retracting, a knuckle (180) attached to the spring (302, 304) and rotatably supporting the motor-driven wheel (100), a center part (306) of a dynamic mass damper mechanism (300) vibrating together with the in-wheel motor (70) by a force given from a road surface when a vehicle runs, an upper part (310) thereof restricting the vibration of the in-wheel motor (70) by coming into contact with the center part (306) at a prescribed region, and a cushioning member (322, 324) fitted to a portion of the center part (306) or the upper part (310) corresponding to the prescribed region brought into contact with the other.Type: GrantFiled: May 24, 2005Date of Patent: September 7, 2010Assignees: Toyota Jidosha Kabushiki Kaisha, Aisin Seiki Kabushiki KaishaInventors: Ryoji Mizutani, Fumito Kurata, Shuuetsu Suzuki, Junichiro Sakurai
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Patent number: 7784572Abstract: A drive unit (1) for an industrial truck comprises a drive motor (2), an electronic steering mechanism (3) being arranged at the periphery thereof. In this way, the drive unit (1) is configured such that it is simpler to assemble and more reliable to operate due to less wiring.Type: GrantFiled: April 4, 2006Date of Patent: August 31, 2010Assignee: ZF Friedrichshafen AGInventors: Dirk Bald, Matthias Habel, Peter Streipardt
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Publication number: 20100216372Abstract: A children's ride-on vehicle is disclosed. In some embodiments, the vehicle may include a body including at least one seat sized for a child; a plurality of wheels including at least one driven wheel; a battery-powered drive assembly configured to selectively drive the rotation of the at least one driven wheel; a mechanical assembly including a first mechanical member movably connected to the body and configured to move among a plurality of positions including a first position in which one or more portions of the first mechanical member are not visible, and a second position in which the one or more portions of the first mechanical member are visible; and at least one user input device positioned to receive inputs from a child sitting on the at least one seat, and configured to selectively move the first mechanical member between the first and second positions.Type: ApplicationFiled: February 20, 2009Publication date: August 26, 2010Inventors: Gerald P. Sitarski, David Grober, Ronald M. Asbach
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Publication number: 20100212980Abstract: A power wheel is provided. The power wheel includes a wheel, a power-driving device, and a power supply for the power-driving device. The power supply and the power-driving device are fixed on the wheel. A power supply device such as a rechargeable battery is set in the wheel to fully utilize the space in the wheel. The power wheel is applicable in an electric bicycle, so that a body design of the electric bicycle is not influenced by mounting conditions of the rechargeable battery device, and a body structure of the electric bicycle is greatly simplified, thus being beneficial to the design and production of electric bicycles having varied types. At the same time, the power wheel device having the rechargeable battery set in the wheel enables the gravity center of the electric bicycle to be depressed, thus keeping the balance of the electric bicycle.Type: ApplicationFiled: May 6, 2010Publication date: August 26, 2010Inventor: Hua Wang
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Publication number: 20100206650Abstract: There has been proposed a transport vehicle designed to move in a self-contained transport system as well as on the automobile roads, comprising a frame consisting of a lower part, to which a plurality of wheels is secured, and of a top part comprising at least two arc-like curved rods to each of which electric rail drive units used as current collectors are connected in such a way that they are displaceable along a supporting current-conductive rail and along the arc-like curved rods.Type: ApplicationFiled: March 31, 2008Publication date: August 19, 2010Inventor: Sergei Olegovich Zege
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Patent number: 7770677Abstract: An in-wheel suspension including a wheel; a carrier that rotatably supports the wheel; an arm (90) that is coupled with a vehicle body, and that extends into the wheel; at least one link that is coupled with the carrier so as to be pivotable about a first shaft substantially parallel to a wheel rotation axis and coupled with the arm so as to be pivotable about a second shaft substantially parallel to the wheel rotation axis, the at least one link extending in a longitudinal direction of a vehicle; and at least one of an elastic element and an attenuation element that is arranged between the carrier and the link.Type: GrantFiled: August 7, 2006Date of Patent: August 10, 2010Assignee: Toyota Jidosha Kabushiki KaishaInventor: Hidehiro Takenaka
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Patent number: 7766110Abstract: A vehicle having in-wheel motors, wherein when the in-wheel motors are mounted on the vehicle driven by the torque of an internal combustion engine, the in-wheel motors are mounted on wheels on one side of the vehicle opposite to the other side on which the internal combustion engine is mounted. The non-rotating side of the motor and the knuckle are supported by a buffer mechanism having plates connected to each other by a direct-acting guide with springs composed of a direct-acting guide having a linear bearing and a rod and spring members moving in the vertical direction of the vehicle and mated with the direct-acting guide and a damper for interconnecting the plates, moving in the vertical direction of the vehicle to support the motor to either one or both of the unsprung mass of the vehicle and the car body by the buffer mechanism. Thus, the running ability and riding comfort of the vehicle having in-wheel motors can be improved.Type: GrantFiled: April 4, 2005Date of Patent: August 3, 2010Assignees: Kabushiki Kaisha Bridgestone, Kayaba Industry Co., Ltd., Akebono Brake Industry Co., Ltd.Inventors: Yasuhiro Suzuki, Katsumi Tashiro, Hisashi Kurokawa, Yoshinari Nakamura, Kimio Takahashi
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Patent number: 7753151Abstract: A drive axle assembly for driving a wheel of a vehicle includes a moveable suspension arm and a wheel spindle fixed to the suspension arm. A planetary gearset includes a sun gear, a ring gear and a carrier rotatably supporting a plurality of planet gears in meshed engagement with the sun gear and the ring gear. The carrier encompasses the wheel spindle and is drivingly connected to the wheel. An electric motor includes a rotor and a stator. The rotor drives the sun gear.Type: GrantFiled: October 3, 2008Date of Patent: July 13, 2010Assignee: American Axle & Manufacturing, Inc.Inventors: Gregory A. Marsh, Herbert L. Adams
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Publication number: 20100163323Abstract: A road wheel propulsion apparatus for alternately propelling and retarding the rotation of a road wheel supporting an automotive vehicle. An electric drive motor is carried by a vehicle and is drivingly connected to a road wheel to provide motive force to the vehicle by driving the road wheel in rotation relative to the vehicle. The electric drive motor includes a radially inner motor stator to be fixed to a vehicle. The electric drive motor also includes a radially outer annular motor rotor to be carried within a road wheel and to be driven in rotation relative to the motor stator by electromagnetic forces developed by between the motor stator and the motor rotor.Type: ApplicationFiled: May 16, 2008Publication date: July 1, 2010Inventor: Michael Frederick Pickholz
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Publication number: 20100147609Abstract: “Bumper car” amusement rides are disclosed. An exemplary bumper car comprises a frame, a seat, multiple drive wheels, a motor controller, and at least one rider control. The seat is configured to hold and position at least one rider of the bumper car. The car is electrically powered from an internal and/or external power source. Each drive wheel comprises a respective hub motor that, when supplied with the electrical power from the source, rotates the respective drive wheel relative to the frame and propels the bumper car. The controller is connected to the source and to the hub motors. The controller is configured: (a) to limit a maximal current supplied by the source to the hub motors during a surge-current situation to a preset maximum, and (b) to ramp down the maximal current over a preset time interval during the surge-current situation. The at least one rider control is interconnected with the source and the hub motors and is configured to be manipulated by a rider for maneuvering the bumper car.Type: ApplicationFiled: September 17, 2009Publication date: June 17, 2010Inventors: Henry Gorgas, John J. Dean, Michael L. Sweringen
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Patent number: 7735589Abstract: A housing structure of an in-wheel motor, the housing structure being formed by combining a plurality of divided housings, the housing structure receiving at least an electric motor for revolving a wheel, the housing structure includes a suspension side divided housing having a fixing boss for fixing the housing structure to a suspension system, and a connection side divided housing connecting to the suspension side divided housing and having a connection boss formed in a position corresponding to a position where the fixing boss is formed.Type: GrantFiled: June 24, 2005Date of Patent: June 15, 2010Assignee: Toyota Jidosha Kabushiki KaishaInventor: Mizuho Sugiyama
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Patent number: 7735588Abstract: A suspension system 10 for a vehicle for suspending a wheel 1 is disclosed. An outer rotor type motor 20 is provided within the wheel 1. The motor 20 has a stator (28, 30) provided on an outer surface of a cylindrical member 24 that defines space 70 open to at least an inboard side of the vehicle, and a rotor (22,26) rotatably supported by the cylindrical member 24. The wheel 1 receives the motor 20 and is connected to the rotor (22,26). The mounting portions of suspension arms (50,52,54) are provided on an inner surface of the cylindrical member 24.Type: GrantFiled: May 12, 2004Date of Patent: June 15, 2010Assignee: Toyota Jidosha Kabushiki KaishaInventor: Satoshi Murata
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Publication number: 20100139999Abstract: The present invention relates to a motor having yokes concentrically arranged and a driving apparatus having the motor. More particularly, the present invention relates to a motor, in which armature metal cores having coils wound thereon and yokes having magnets attached thereto are arranged in multiple stages around a central shaft, and a driving apparatus having the motor. A motor having yokes concentrically arranged according to an aspect of the present invention comprises a rotor and a stator. The rotor has a plurality of cylindrical yokes arranged in multiple stages in a radial direction and a plurality of magnets respectively fixed to the yokes with polarities of the magnets alternated with each other in a circumferential direction. The stator has armature metal cores arranged to face the respective yokes and a plurality of armature coils wound on the armature cores to face the magnets.Type: ApplicationFiled: April 17, 2008Publication date: June 10, 2010Inventor: Gye-Jeung Park
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Patent number: 7733039Abstract: A power system that provides power between an energy storage device, an external charging-source/load, an onboard electrical power generator, and a vehicle drive shaft. The power system has at least one energy storage device electrically connected across a dc bus, at least one filter capacitor leg having at least one filter capacitor electrically connected across the dc bus, at least one power inverter/converter electrically connected across the dc bus, and at least one multiphase motor/generator having stator windings electrically connected at one end to form a neutral point and electrically connected on the other end to one of the power inverter/converters. A charging-sourcing selection socket is electrically connected to the neutral points and the external charging-source/load. At least one electronics controller is electrically connected to the charging-sourcing selection socket and at least one power inverter/converter.Type: GrantFiled: September 21, 2007Date of Patent: June 8, 2010Assignee: UT-Battelle, LLCInventor: Gui Jia Su
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Publication number: 20100138127Abstract: An electric motor includes one or more separate coil sets arranged to produce a magnetic field of the motor. The electric motor also includes a plurality of control devices coupled to respective sub-sets of coils for current control. A similar arrangement is proposed for a generator. A coil mounting system for an electric motor or generator includes one or more coil teeth for windably receiving a coil for the motor and a back portion for attachably receiving a plurality of the coil teeth. A traction control system and method for a vehicle having a plurality of wheels independently powered by a respective motor. A suspension control system and method for a vehicle having a plurality of wheels, each wheel being mounted on a suspension arm of the vehicle and being independently powered by a respective motor.Type: ApplicationFiled: July 13, 2007Publication date: June 3, 2010Applicant: QED GROUP LIMITEDInventor: Martin Boughtwood
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Patent number: 7717203Abstract: In a wheel rotating apparatus including a motor and a planet gear mechanism to generate a drive force, the planet gear includes first and second gears having different diameters, connected to each other in an axial direction thereof with planet gear shaft. The first gear is inside the stator and the rotor in radial and axial directions of the wheel and the second gear is outside the first gear in an axial direction of the wheel. A vehicle may include a suspension connected to the base of the wheel rotating apparatus.Type: GrantFiled: August 29, 2007Date of Patent: May 18, 2010Assignee: Honda Motor Co., Ltd.Inventors: Tsutomu Yoshino, Koichi Oku
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Publication number: 20100116567Abstract: Apparatuses for assisting motion of vehicles are disclosed here. Embodiments of the present disclosure include an apparatus comprising, a charge-storage unit, an electromotor coupled to the charge-storage unit, wherein, at least a portion of the power supplied to the electromotor is supplied by the charge-storage unit. The apparatus may further include, a wheel powered by the electromotor to rotate in a plane about an axis, a housing, and a handle coupled to the housing, the handle being physically configured to, when, in operation, couple to an external entity to whom motion assistance is to be provided. The external entity may be a vehicle (e.g., a motor vehicle although other objects may be connected.Type: ApplicationFiled: November 24, 2009Publication date: May 13, 2010Inventor: Yadon Arad
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Publication number: 20100116572Abstract: An autonomous modular wheel assembly includes at least one connector for connecting the wheel control assembly to a vehicle axle, one or more suspension arms that support the assembly with respect to the axle, an electric drive motor connected to a the vehicle wheel, a steering bearing, and a steering actuator. The electric drive motor and steering bearing control the operation of the vehicle wheel in response to commands received via the actuator. The connector has one or more electrical connection points for providing power and information to the wheel assembly. The robot wheel increases the vehicle steering range to up to 150 degrees and enables new vehicle drive modes. The traditional +/?30 degrees of front wheel steering are enabled, as well as at least three new drive modes: four wheel parallel and converse steering, spin on spot steering, and 90 degree sideways motion.Type: ApplicationFiled: June 25, 2009Publication date: May 13, 2010Applicant: Massachusetts Institute of TechnologyInventors: Peter Alfons Schmitt, William J. Mitchell
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Publication number: 20100116573Abstract: Disclosed herein is an in-wheel motor vehicle to increase design freedom of an electric motor mounted in a wheel, dynamic performance of the vehicle, and cooling performance of a brake device. The in-wheel motor vehicle includes a wheel rotatably mounted to a vehicle body, an electric motor mounted in the wheel to drive the wheel, an axle extending from the wheel to the vehicle body so as to be rotated together with the wheel, and a brake device mounted to the vehicle body at a position spaced apart from the wheel for braking of the axle.Type: ApplicationFiled: November 9, 2009Publication date: May 13, 2010Applicant: MANDO CORPORATIONInventor: Myoung June KIM
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Patent number: 7712561Abstract: A driving wheel structure (100) for a motor vehicle employing an in-wheel motor arrangement includes first (105) and second (108) electric motors for generating drive torques to rotate a wheel (102), a first support member attached to the vehicle body for supporting the first motor on a vehicle body, and a second support member attached to the vehicle body for supporting the second motor on the vehicle body. When the wheel (102) is rotated in one direction by the first motor (105), a reaction torque (F1) is induced in the first support member by the drive torque of the first motor (105) that applies a down-ward bias force (F1) to the wheel (102). When the wheel (102) is rotated in said one direction by the second motor (108), a reaction torque (F2) is induced in the second support member by the drive torque of the second motor that applies an upward bias force (F2) to the wheel (102).Type: GrantFiled: March 6, 2007Date of Patent: May 11, 2010Assignee: Toyota Jidosha Kabushiki KaishaInventor: Tomohiko Niwa
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Publication number: 20100108417Abstract: A suspension module that includes a suspension component, a pair of wheel hubs coupled to the at least one suspension component and an auxiliary drive system. Each wheel hub is mounted to a vehicle wheel. The auxiliary drive system has a pair of drive units, an auxiliary battery, an auxiliary battery charger and a controller. Each of the drive units has an electric motor that is selectively operable for providing drive torque that is transmitted to an associated one of the wheel hubs. The controller is configured to operate in a first mode wherein an output of the auxiliary battery charger is employed to charge the auxiliary battery. The controller is also configured to operate in a second mode wherein the output of the auxiliary battery charger and an output of the auxiliary battery are employed to power the electric motors of the drive units.Type: ApplicationFiled: October 27, 2009Publication date: May 6, 2010Inventor: Curt Douglas Gilmore
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Publication number: 20100108418Abstract: An electric wheelchair that enables users suffering from impairment of the lower extremities due to paralysis or weakness caused by aging to manage their daily lives independently for social rehabilitation by allowing them to raise and lower the seat of the wheelchair between squatting and standing positions, to support their body weight at any position by stopping the chair, and to operate the movement of the wheel chair by using their arms or elbows pressed on either the inner or outer surfaces of the armrests even if both hands are occupied or impaired.Type: ApplicationFiled: October 31, 2009Publication date: May 6, 2010Inventor: Yoshisuke KURAMOTO
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Publication number: 20100101879Abstract: A combined motor-battery system comprising an electric power source adapted to convert self-originating electrical current to mechanical power utilizing a set of common functional structures. Preferred embodiments include an electrochemical cell comprising field reactive electrodes that directly produce extractable mechanical forces in the presence of a magnetic field.Type: ApplicationFiled: January 5, 2010Publication date: April 29, 2010Inventor: Jack C. McVickers
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Patent number: 7703565Abstract: There are provided plural suspension links, one end of each of which is coupled to a wheel and the other end of each of which is coupled to a vehicle body. The suspension links are disposed so as to extend substantially in a vehicle width direction. A drive motor is disposed so as to be offset from a center of a wheel on a side that is away from disposition location of the suspension links. The drive motor and the wheel are coupled by a drive-force transmitting mechanism so that a drive force can be transmitted. Accordingly, there can be provided the disposition structure of a drive device for a vehicle that can provide both the drive motors and the suspension links without any improper interference, ensuring proper controlling of the wheel positions.Type: GrantFiled: January 15, 2008Date of Patent: April 27, 2010Assignee: Mazda Motor CorporationInventors: Kazutoshi Ikenoya, Kenji Asada, Shigeyuki Mori
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Patent number: 7694765Abstract: A power-dividing device for a working vehicle includes a case member, an input shaft supported by the case member so that a first end portion of the input shaft can be operatively connected to a driving source, a PTO unit having a PTO shaft supported by the case member so as to be offset with respect to the input shaft, a power transmission mechanism accommodated in the case member to transmit power from the input shaft to the PTO shaft, and a first pump unit having a first pump shaft operatively connected to the input shaft and being fluid-connected to an actuator disposed outside.Type: GrantFiled: August 10, 2007Date of Patent: April 13, 2010Assignee: Kanzaki Kokyukoki Mfg. Co., Ltd.Inventors: Hiroshi Kitagawara, Koji Kiyooka
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Publication number: 20100078236Abstract: To dispose a large battery in a saddle-ride electric vehicle equipped with a head pipe steerably supporting a front fork with the front wheel journaled to a lower end portion and a steering handlebar, a main frame extending downward and rearward from the head pipe, and an electric motor generating power for rotatively driving a rear wheel. The battery supplying electric power to an electric motor is disposed in a space S1 that is surrounded by a down frame connected to the head pipe or a front end portion of the main frame 14 and extending downward, a pivot frame connected to the rear end portion of the main frame and extending downward, and the main frame. The electric motor is disposed on a side of the rear wheel rather than in the space S1.Type: ApplicationFiled: September 16, 2009Publication date: April 1, 2010Inventors: Taiki Sasage, Masahiko Takenaka
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Publication number: 20100078237Abstract: An electric motorcycle is provided such that even if a power drive unit is mounted to a swing arm, it is difficult for a load to be applied to wiring connected to the power drive unit. In an electric motorcycle in which a PDU and a running-purpose power-generating motor are attached to a swing arm turning around a pivot shaft, and electricity from batteries is supplied via a contactor box to the PDU, from which the electricity is supplied to a power-generating motor, torsional portions extending generally parallel to the pivot shaft are provided at a portion of output lines connecting the contactor box with the PDU so as to allow torsion to absorb swinging movement of the swing arm.Type: ApplicationFiled: September 25, 2009Publication date: April 1, 2010Inventors: Atsushi YONEHANA, Hiroyuki Kikuchi
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Patent number: 7685815Abstract: A system and method for driver-initiation of regeneration of a diesel particulate filter using a service brake pedal in a motor vehicle to reduce the risk that the vehicle will become unattended during on-going regeneration.Type: GrantFiled: October 20, 2006Date of Patent: March 30, 2010Assignee: International Truck Intellectual Property Company, LLCInventor: Kevin V. Gudorf
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Patent number: 7686315Abstract: A wheel drive assembly and suspension for a vehicle wheel includes a spindle, a wheel drive shaft that rotates relative to the spindle about an axis of rotation, and an electric motor that has a motor output shaft for driving the wheel drive shaft. A motor housing encloses a speed reducing planetary gear set that is driven by the motor output shaft. The motor output shaft and the wheel drive shaft are co-axial. A suspension arm extends in a direction transverse to the axis of rotation. The suspension arm includes a pivot end attached to a vehicle structure and an attachment end that is rigidly attached to the motor housing such that the electric motor is a structural part of the suspension.Type: GrantFiled: August 29, 2006Date of Patent: March 30, 2010Assignee: ArvinMeritor Technology, LLCInventor: Dennis A. Kramer
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Patent number: 7686145Abstract: A drive device for electric vehicles comprises a casing 30, a motor 40 housed in the casing and having a rotating shaft 42, a housing 50 rotatably fitted around the casing and coupled to the outer end of the rotating shaft of the motor by a reduction gear mechanism 48, a drive wheel 80 provided around the housing and an electromagnetic brake 60 for arresting the rotation of the rotating shaft of the motor at the base end of the shaft. The rotating shaft of the motor is engaged with or disengaged from the electromagnetic brake by a clutch mechanism 70 provided between the shaft and the brake.Type: GrantFiled: September 20, 2006Date of Patent: March 30, 2010Assignee: Sanyo Electric Co., Ltd.Inventors: Takayoshi Akagi, Takuya Noro, Kazuhiro Tomoshige, Satoshi Komukai
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Publication number: 20100071972Abstract: An axial flux electrical machine is provided. The machine includes a plurality of rotors, each sandwiched between a respective pair of stator parts. The plurality of rotors, together with their respective stators, are axially-stacked to form a multistage machine. Heat exchangers are provided adjacent each stator to provide cooling. Each rotor disc is a composite rotor disc in which permanent magnets are embedded. The magnets are embedded in apertures through each disc so that surfaces of the magnets are flush with surfaces of the respective rotor disc.Type: ApplicationFiled: January 6, 2009Publication date: March 25, 2010Inventors: Michael Ulrich LAMPERTH, Peethamparam ANPALAHAN
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Publication number: 20100051365Abstract: The subject invention provides a wheel assembly (20) having a spindle (26) for attachment to a vehicle along a rotational axis (R). An electric motor (22) is disposed radially about the spindle (26) and includes a stationary stator (34) and a rotor (36) rotatable about the rotational axis (R) relative to the stator (34). A rotor support (40) is disposed about the spindle (26) and includes a collar (42) rotatably supported by at least one rotor support bearing (46) on the spindle (26). The rotor support (40) includes a flange (44) disposed within a predetermined axial distance (D) and extending radially outward from the collar (42) to support the rotor (36). A planetary gear system (62) interconnects the rotor support (40) and a wheel drive (52) for reducing rotational speed of the rotor (36) and increasing the torque of the wheel assembly (20).Type: ApplicationFiled: November 10, 2009Publication date: March 4, 2010Applicant: AXLETECH INTERNATIONAL IP HOLDINGS, LLCInventors: Jay DeVeny, Herb Larsen, Barry Groves, Clinton F. Justice
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Publication number: 20100036543Abstract: A drive assistance device for a wheel chair having a drive motor, a driving wheel, a sensor means which is designed such that a driving force manually induced into a driving wheel is detected, and a control unit, designed such that the drive motor is controlled to drive the driving wheel in accordance with a drive assistance degree depending on the driving force manually induced into the driving wheel, wherein the control unit comprises an anti-rollback operational mode in which it is adapted to control the drive motor such that an unintended rolling of the driving wheel is avoided. The invention also relates to a wheel chair having such a drive assistance device.Type: ApplicationFiled: July 30, 2009Publication date: February 11, 2010Applicant: ULRICH ALBER GMBHInventors: Paul-Gerhard BITZER, Bernhard STUMPP
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Patent number: 7658251Abstract: A direct drive traction vehicle motor system for a wheeled vehicle includes an electric motor rotor for mechanically attachment to a vehicle wheel for rotational movement with the vehicle wheel. An attachment structure is concentrically mounting the rotor to the vehicle wheel. An electric motor stator is mounted in a concentric relationship with the rotor. A mechanical structure is coupled between the vehicle and the stator for inhibiting rotation of the stator. An electric drive circuit is electrically coupled to the motor stator for exciting the motor stator to impart a rotational force on the vehicle wheel through the rotor.Type: GrantFiled: September 20, 2006Date of Patent: February 9, 2010Inventor: Harry K. James
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Patent number: 7654350Abstract: Drive and steering unit for a wheel of a floor conveyor, in which a driving motor and a steering motor are disposed coaxially one below the other and are each one coupled via a drive gear or a steering gear, respectively, with a shaft of the wheel or the bearing equipment of the wheel, respectively, wherein one shaft extends as a hollow shaft and the other shaft extends through the hollow shaft, and an electronic control for the driving motor and the steering motor, which is connected with desired value transmitters for the rotational speed and the steering angle, characterised in that the electronic control has at least one circuit board which is coaxially arranged between the driving motor and the steering motor and/or the steering motor and the steering gear.Type: GrantFiled: October 24, 2006Date of Patent: February 2, 2010Assignee: Jungheinrich AktiengesellschaftInventors: Frank Manken, Ulf Schipper, Martin Von Werder, Hans Rudolf Wrede
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Publication number: 20100018784Abstract: A vehicle operated by an electric motor (16) comprises an energy generating unit (11, 12, 16) for generating electric energy for the electric motor (16) and an energy storage device (8, 9) for storing electric energy, wherein the energy storage device (8, 9) is connected to the electric motor (16) for supplying the electric motor (16) with electric energy in addition to the energy supplied by the energy generating unit (11, 12, 16). The maximum power which can be provided by the energy generating unit (11, 12, 16) is higher, but by no more then 15%, than an average motor power in the operation of the vehicle.Type: ApplicationFiled: December 28, 2007Publication date: January 28, 2010Applicant: CLEAN MOBILE AGInventor: Rudolf Hoebel
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Publication number: 20100000811Abstract: A geared motor 10G, which is provided with an electric motor 10 and a reduction gear mechanism 11 for reducing the rotation speed thereof and transmitting the reduced speed to a wheel 2, is elastically connected to a knuckle 5 by a dynamic vibration absorber 20 which comprises a motor mounting member 21 attached to a lateral side of a motor case 10a, a knuckle mounting member 22?? attached to the knuckle 5, a spring member 23 interconnecting the motor mounting member 21 and the knuckle mounting member 22??, two guide members 24,24 for guiding the operation of the spring member 23 in the up-and-down direction, and a damper 25?? disposed in parallel with the guide members 24,24. Also, the electric motor 10 and the dynamic vibration absorber 20 are disposed posterior to the reduction gear mechanism 11. As a result, the geared motor 10G is provided with an ample stroke width, and also the dynamic vibration absorber 20 can perform its expected function fully.Type: ApplicationFiled: January 23, 2007Publication date: January 7, 2010Applicant: KABUSHIKI KAISHA BRIDGESTONEInventor: Haruo Iwano
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Patent number: 7641010Abstract: An in-wheel motor includes a motor generating motive power, a planetary gear arranged toward a wheel disc relative to the motor to reduce an output of the motor, and a shaft arranged toward the wheel disc relative to the planetary gear and connected to a planetary carrier. Shaft is connected to a constant velocity joint transmitting the motive power to wheel disc.Type: GrantFiled: December 16, 2005Date of Patent: January 5, 2010Assignees: Toyota Jidosha Kabushiki Kaisha, Aisin Seiki Kabushiki KaishaInventors: Ryoji Mizutani, Fumito Kurata, Shigekazu Yogo, Kenji Harada, Atsushi Torii, Yuki Tojima, Masafumi Sakuma
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Publication number: 20090321162Abstract: A wheelchair has two central wheels (15) which can be separately driven by a motor. In order to allow the wheelchair to turn around in narrow spaces, the central wheels (15) can be driven in opposite directions of rotation. When the wheelchair is turned around, the front wheels (17) and rear wheels (19) do not constitute a hindrance because they are kept at a distance from the ground (25) by the swivelling wheel (21). All three wheels (15, 17, 19) are coupled together on each side by a chain (27). When the front wheels run against an obstacle, the wheelchair climbs over the obstacle with the driven front wheels (17). This causes the fork (22) of the swivelling wheel (21) to swivel about the rotational axis (31) in the direction of arrow (33), against the force of a spring, bringing the rear wheels in contact with the ground and also driving the wheelchair's rear wheels.Type: ApplicationFiled: June 16, 2006Publication date: December 31, 2009Inventors: Kurt Hunziker, Samuel Huerlimann, Alexandre Tapis
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Publication number: 20090314562Abstract: A transport vehicle wheel assembly comprising a set of rotating components and a set of static components wherein an applied electrical current applied to conductive material incorporated into at least one components structural matrix of one set of components gives rise to primary magnetic fields which interact with reactive magnetic fields associated with material incorporated into at least one components structural matrix of another set of components and gives rise to rotational forces which act on the rotating components of said transport vehicle wheel assembly to induce controlled forward rotation of a wheel and having regenerative braking and reverse drive ability thus allowing controlled retardation assistanceType: ApplicationFiled: August 12, 2009Publication date: December 24, 2009Inventor: Rod F. Soderberg
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Publication number: 20090312134Abstract: A compact gear reducer electric motor assembly with an internal brake disclosed and claimed wherein a high speed electric motor is interconnected with a gear reducer having substantial gear reduction. The assembly includes a spindle, a brake mounted substantially within said high speed electric motor and operable against a spring biasing said brake into engagement with ground. The brake is electrically actuated to permit transmission of energy to the gear reducer. The gear reducer includes an input, intermediate and output planetary stages. The input and intermediate stages residing within the spindle, and, the output planetary stage drives an output ring gear. Releasing means for releasing the output ring gear from the brake allowing rotation thereof.Type: ApplicationFiled: October 21, 2008Publication date: December 17, 2009Inventor: BENJAMIN WARREN SCHOON
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Patent number: 7633205Abstract: In order to be able to electric drives in very tight installation spaces, e.g. in propulsion vehicles or machine tools, an electric machine (1) is proposed having a stator and a rotor (28), with the laminations (2) of the stator have axial slots (4) and teeth (5, 6) extending between adjacent slots (4) in direction air gap. At least a predefined number of the teeth (6) is configured as a single-tooth winding (7), and at least one section (3) is provided in circumferential direction of the stator and is designed without slots but follows the contour of the stator bore (11) in the area of the air gap.Type: GrantFiled: November 22, 2004Date of Patent: December 15, 2009Assignee: Siemens AktiengesellschaftInventors: Thilo Hoffmann, Andreas Jöckel
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Patent number: 7624830Abstract: A vehicle energy recovery system has an axle, a wheel affixed to the axle so as to rotate with a rotation of the axle, a flywheel assembly mounted in or adjacent to the wheel so as to be rotatable independently of the rotation of the axle, a stator positioned in proximity to the flywheel assembly, a brake disk affixed to the axle and extending radially outwardly therefrom, and an energy transfer system cooperative with the brake disk for transferring energy from the brake disk to the flywheel assembly. A pair of calipers are respectively mounted adjacent opposite sides of the brake disk. The energy transfer system can be an induction stator or rotor positioned adjacent to the brake disk.Type: GrantFiled: June 30, 2006Date of Patent: December 1, 2009Inventor: Kevin Williams
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Patent number: 7624828Abstract: A vehicle power transfer system and method, and vehicle using the same. The vehicle power transfer system including a differential unit coupled to a half axle, and an electric motor for supplying torque to propel a vehicle. The electric motor is collinear with the differential unit and the half axle.Type: GrantFiled: May 4, 2006Date of Patent: December 1, 2009Assignee: Ford Global Technologies, LLCInventor: Shailesh Kozarekar