Nsk Corporation

Canon Kabushiki Kaisha

The University of Tokyo

Bridgestone Corporation

Tokyo Electric Mfg. Co., Ltd.

Toyo Electric Mfg. Co., Ltd.

Daisuke Gunji

Yasuyuki Matsuda

Hiroshi Fujimoto

Hiroyasu Kumagai

Kazutaka Tanaka

Masafumi Hikida

Osamu Shimizu

Yasumichi Wakao

Keizo Akutagawa

Isao Kuwayama

Tetsu Takehara

Hiroshi Kawahara

Tomonobu Hiraishi

Hiroyasu Yoshioka

Shin Yamamoto

Tomoharu Saito

Ricardo Rodriguez Lopez

Yuka Kaneko

Naohiro Hitomi

Takehiro Imura

Takashi Imanishi

Eiji Inoue

Gaku Yamamoto

Hiroto Oka

Toshirou Toyoda

Gen Kimura

Naoki Tsukabe

Tohru Ueda

Mitsuru Oike

Ryuho Morita

Tooru Ueda

Fumiaki Soda

Katsuhiro Hata

Motoki Sato

Hiroki Hamada

Chieko Ito

Shuhei Souma

Ricardo Lopez Rodriguez

A wireless power reception systemincludes: a power reception deviceincluding a power reception coilthat receives power supplied wirelessly from a power transmission coilof a power transmission deviceinstalled in a road surface, at least a portion of the power reception coilbeing housed in a wheelof a moving body; and a driving devicewhich is installed in the wheeland which drives the wheelwith power received by the power reception device, wherein the power reception deviceis provided with a converterand an inverter, at least a portion of the converterand at least a portion of the inverterare housed in the wheel, the converteris positioned vertically above the power reception coil, and the inverteris positioned vertically above the converter

Wireless power reception system, moving body, and wheel

A wireless power reception systemincludes: a power reception deviceincluding a power reception coilthat receives power supplied wirelessly from a power transmission coilof a power transmission deviceinstalled in a road surface, at least a portion of the power reception coilbeing housed in a wheelof a moving body; and an onboard devicewhich is installed in the moving bodyand which is electrically connected to the power reception device, wherein the power reception devicecan transmit received power to the onboard device, and the power reception coilincludes a stacked plurality of spiral coil layersand

A wireless power receiving system includes: a power receiving device having a power receiving coil configured to receive electric power supplied wirelessly from a power transmission coil of a power transmission device installed on a road surface, at least part of the power receiving coil being contained in a vehicle wheel; and in-vehicle devices installed in a mobile object, the in-vehicle devices being energizably connected to the power receiving device. The power receiving device transmits the received electric power to the in-vehicle devices.

Wireless power receiving system, mobile object, and vehicle wheel

A propellant force generator is provided having the size in the axial direction of a rotational shaft of a motor reduced while making the pitch angles of rotational blades driven by the motor variable. The propellant force generator includes a propellant-force generating motor adapted to generate a propellant force for rotational blades, a pitch varying motor adapted to generate a rotational motion for changing pitch angles of the rotational blades, a rotation-linear motion converting unit adapted to convert the rotational motion generated by the pitch varying motor into a linear motion, and a linear motion-rotation converting unit adapted to convert the linear motions converted by the rotation-linear motion converting unit into rotational motions. At least a part of the linear motion-rotation converting unit is located within the propellant-force generating motor.

Propellant force generator

At least one processor of an apparatus functions as a generation unit that identifies at least an outer edge of a specific region in a surface layer of an object and that generates outer edge candidates, and a control unit that selects an outer edge candidate based on an instruction from a user among the generated outer edge candidates.

Image processing apparatus, method of processing image, and program

An image processing apparatus capable of simplifying operations for determining an image pickup posture of an image pickup apparatus attached to a robot. The image processing apparatus processes an image that an image pickup apparatus attached to a robot picks up. The image processing apparatus includes a memory device that stores a set of instructions, and at least one processor that executes the set of instructions to specify a working area of the robot based on teaching point information showing a plurality of designated teaching points, specify an image pickup area of the image pickup apparatus so as to include the specified working area; and determine an image pickup posture of the robot based on the specified image pickup area.

Image processing apparatus that processes image picked up by image pickup apparatus attached to robot, control method therefor, and storage medium storing control program therefor

A rolling bearing unit includes: an inner ring member having a recess on a first side in an axial direction, the recess being recessed toward a second side in the axial direction; an outer ring member disposed on the outer periphery side of the inner ring member; a rolling body disposed between the inner ring member and the outer ring member and rotatably supporting the inner ring member with respect to the outer ring member; a transmitter capable of transmitting at least one of electric power or a signal, at least a part of the transmitter being accommodated inside the recess of the inner ring member; and a covering member that is supported by the first side of the outer ring member in the axial direction, covers the first side of the inner ring member in the axial direction, and fixes the transmitter.

Rolling bearing unit

A rolling bearing unit includes: an inner ring member having a recess on a first side in an axial direction along a rotation axis, which is recessed toward a second side in the axial direction; an outer ring member on an outer peripheral side of the inner ring member; a rolling body between the inner ring member and the outer ring member; a non-contact transmitter using electric field coupling capable of transmitting at least one of an electric power or a signal and including a stationary-side transmission part including a stationary-side electrode and a rotary-side transmission part including a rotary-side electrode facing the stationary-side electrode; and a covering member supported by the first side of the outer ring member in the axial direction, covering the first side of the inner ring member in the axial direction, and fixing the stationary-side transmission part to the first side in the axial direction.

An electric vehicle drive device includes: a first motor; a second motor; a transmission mechanism coupled to the first motor and the second motor; and a control unit configured to control operation of the first motor and the second motor based on a drive signal. The transmission mechanism includes: a sun gear shaft coupled to the first motor; a first planetary gear mechanism; a second planetary gear mechanism; and a one-way clutch configured to restrict a rotation direction of a first carrier to a predetermined positive rotation direction. The drive signal includes gear change information indicating a first state in which the second motor is controlled based on torque or a second state in which the second motor is controlled based on rotation speed, and throttle information indicating an acceleration of rotation speed of a wheel.

Electric vehicle drive device

An electric vehicle driving device includes a first motor, a second motor, a transmission device to which power of at least one of the first motor and the second motor is transmitted, and an output member that rotates with power output from the transmission device. A rotation axis of the first motor, a rotation axis of the second motor, and a rotation axis of the transmission device are arranged in parallel to a rotation axis of the output member. When seen from an axial direction parallel to the rotation axis of the output member, the rotation axis of the first motor is located on one side of a straight line passing through the rotation axis of the output member and the rotation axis of the transmission device and the rotation axis of the second motor is located on the other side of the straight line.

Electric vehicle driving device

There are provided an object recognition unit of recognizing a target object in sequentially acquired images, a tracking unit of performing tracking on the sequentially acquired images for the recognized target object, and a storage controller of controlling so as to store in a first storage device the sequentially acquired images. The tracking unit further performs tracking for the target object on stored images, that are acquired before the target object is recognized by the object recognition unit in the sequentially acquired images, and are stored in the first storage device. The storage controller controls so as to store in a second storage device different from the first storage device, images in which the target object is tracked by the tracking unit of the sequentially acquired images, and images in which the target object is tracked by the tracking unit of the stored images.

Image processing apparatus, image processing method, and program

A suspension operation system includes: a suspension that includes a plurality of links supporting a wheel, at least one or more of the links having an actuator increasing or decreasing its length in an axial direction; a control device that supplies a drive signal to the actuator to control operation of the suspension; and a suspension operation terminal that operates the suspension. The suspension operation terminal includes: a detector that detects operation input information to the suspension operation terminal; and a communicator that transmits information about a target posture of the wheel, the information being based on the operation input information, to the control device as an operation command. The control device includes: a first calculator that calculates the length of the actuator on the basis of the operation command; and a drive circuit that produces the drive signal on the basis of information from the first calculator.

Suspension operation system and suspension operation terminal

A charger incorporated in a vehicle wheel supporting rolling bearing unit detects an output voltage of an electric generator and calculates a rotation speed of a hub. When a rotation speed of the hub is in a low speed state where a sensor and a wireless communication device are operated by electric power supplied 5 by a battery, a frequency of wireless communication performed between the wireless communication device and a calculator disposed on a vehicle body side is changed according to the rotation speed of the hub or a traveling speed of a vehicle.

Rolling bearing unit for wheel support

A rotation transmission device having a high torque measurement resolution is provided. The rotation transmission device is provided with: a rotary-shaft unit () having a first and second rotary shaft () combined so as to be coaxial and such that the end sections thereof can rotate relative to each other and a torsion bar () that is provided on the inner-diameter side of the first and second rotary shafts so as to be coaxial therewith, has one end section connected to the first rotary shaft (), and has the other end section connected to the second rotary shaft (); a first gear () fastened to the outer peripheral surface of the first rotary shaft (); a second gear () fastened to the outer peripheral surface of the second rotary shaft (); a coupling shaft () provided on the inner-diameter side of the torsion bar () so as to be coaxial therewith, having one end section connected to one rotary shaft (), and having the other end section protruding from an end of the torsion bar () in the axial direction; a first encoder disposed and fixed on the other end of the coupling shaft () so as to be coaxial with the first rotary shaft () and having a first detected section (); a second encoder fastened on the other end of the second rotary shaft () so as to be close to the first encoder and having a second detected section (); and a sensor unit having at least one sensor () that faces the first and second detected sections ().

Rotation transmission device

An in-wheel motor system can drive an in-wheel motor stably, and also allows power feeding from the road surface, even when transmission and reception coils are misaligned. An in-wheel motor system () includes a power transmitter () that utilizes a resonance phenomenon using a magnetic field. The power transmitter () transmits power (P) wirelessly from the vehicle body to an in-wheel motor () mounted in a wheel. The in-wheel motor system () may also include a communication interface () that communicates between the vehicle body and the wheel, and the communication interface () may transmit a control signal (CTL) for driving the in-wheel motor.

Growing community of inventors

Kanagawa, Japan

Daisuke Gunji