Thk Co., Ltd.

Subaru Corporation

Toyota Jidosha Kabushiki Kaisha

Takuya Horie

Mitsumasa Wada

Tetsuhiro Nishide

Ayako Miyajima

Teruaki Ooka

Takeshi Shimamura

Satoshi Kashiwagura

Marie Horikawa

Shinya Saito

Akimasa Yoshida

Hiroyuki Kimura

Shinji Aoki

Hiroaki Mochizuki

Fumiyuki Moriya

Ryuji Furusawa

Manabu Sato

Tomofumi Okamoto

Yuki Nakamura

Hidekazu Michioka

Kaoru Hoshide

Tsuyoshi Yamamoto

Hiroyuki Takizawa

Katsuya Iida

Hiroshi Niwa

Shinya Mori

Yusuke Asano

Hiroshi Kaneshige

Akihiro Teramachi

Yoshinobu Moriyuki

Shinichiro Noda

Junichi Murase

Kentaro Hikomoto

Yosuke Irie

Nobuyuki Ikegami

Fumiaki Morita

Masanori Yoshino

Takuya Yamagata

Keisuke Nagaike

Tetsuya Sakagami

Hiroshi Monna

A vehicle includes a main motor for traveling and an electronic control unit that controls the main motor. The electronic control unit is configured to: extract, from time series data of a rotation speed of the main motor, vibration data in a predetermined frequency band that includes resonance frequency of a drive system that includes the main motor; lower an upper limit value of output torque of the main motor from a normal upper limit value to a first upper limit value lower than the normal upper limit value when magnitude of vibration obtained from the extracted vibration data exceeds a first threshold value; and lower the upper limit value of output torque of the main motor to a second upper limit value lower than the first upper limit value when the magnitude of the vibration exceeds a second threshold value larger than the first threshold value.

Vehicle

A lubricant supplying device has: a mounted member that is mounted to a moving member, which moves along a rail, and that is disposed with an interval between the mounted member and concave portions that are provided in the rail along a length direction of the rail; and a supply path unit that is removably attached to the mounted member, wherein the supply path unit has an introducing port into which a lubricant is supplied, supplying members that project out from the mounted member toward the concave portions and supply the lubricant to rolling surfaces of the concave portions on which rolling bodies that are provided at the moving member roll, and a tubular member that connects the introducing port and the supplying members, and the mounted member has an accommodating portion that is concave and accommodates the supply path unit from the length direction of the rail.

Lubricant supplying device and guiding device

Provided is a motion guide device load measuring system that can accurately measure loads acting on a motion guide device in use. The load measuring system includes a position detecting unit () for detecting the position of a sliding member () relative to a track member () in a direction of relative movement, and at least one sensor (--) for detecting the relative displacement of the sliding member () relative to the track member () in a radial direction and/or a horizontal direction. A calculating unit () calculates loads acting on the motion guide device (), in association with the position of the sliding member (), on the basis of position information detected by the position detecting unit () and displacement information detected by one or more of the sensors (--).

Motion guide device load measuring system and load measuring method, and motion guide device service life calculating method

A vehicle includes: a traction motor; and a drive controller. The traction motor includes a rotational position sensor configured to detect a rotational position of a rotor magnetically. The drive controller controls a driving current output to the traction motor. The drive controller is able to switch a control mode of the driving current between a sensing control mode configured to control the driving current by using a detection result from the rotational position sensor and a sensing-less control mode configured to control the driving current without using a detection result from the rotational position sensor.

Wireless power supply for vehicle

A vehicle includes: a traction motor; a diagnostic module; a receiving coil; and a controller. The diagnostic module executes a diagnostic test of a rotational position sensor of the traction motor. The receiving coil receives a power wirelessly. The controller switches the diagnostic module to a state that is less likely to determine an error than normal when the receiving coil is positioned with respect to a supplying coil in a ground equipment.

Wireless power supply systems for a vehicle

This ball join includes a ball stud with a spherical ball section and a shaft-shaped shaft section and a holder that rotatably bolds the ball section, and has a machining surface subjected to cutting in a welded portion obtained by welding the ball section and the shaft section, and the machining surface has a curve-shaped first corner section. In addition, a method for manufacturing this ball joint includes a welding step of welding the ball section and the shaft section and a cutting step of forming the machining surface by subjecting the welded portion obtained by welding the ball section and the shaft section to cutting, and the cutting step executes processing including forming the curve-shaped first corner section on the machining surface. Consequently, a ball joint with a large oscillation angle can be obtained.

Ball joint and method for manufacturing ball joint

A motion guide apparatus cooling nozzle is provided which can gas-cool a motion guide apparatus. Cooling nozzlesandof the present invention are mounted on a blockof the motion guide apparatus to cool at least one of a guide railand a blockthat is assembled to the guide railvia a rolling elementin such a manner as to be movable relatively. The cooling nozzlesa andinclude an inner passageinto which gas is introduced, an openingconfigured to emit a gas flow introduced into the inner passage, a deflection surfacethat is provided adjacently to the openingto bend the gas flow emitted from the opening, and a guiding surfaceconfigured to attract gas outside the cooling nozzlesand

Motion guide apparatus cooling nozzles, motion guide apparatus with cooling nozzles, and motion guide apparatus cooling system

Ball joint

A magnetic-scale-equipped motion guide apparatus is provided which can scrape iron powder adhered to a magnetic scale by a scraper or seal of a movable member without inviting adverse effects such as wearing away and deformation of the magnetic scale. The magnetic-scale-equipped motion guide apparatus of the present invention comprises a track memberhaving a rolling element rolling portionand also an upper surface where through holesinto which fastening members are inserted open, a movable membermovably assembled to the track membervia a plurality of rolling elements, a grooveformed in the track memberand extended in a longitudinal direction, a magnetic scaleaccommodated in the grooveand having north and south poles alternately formed in the longitudinal direction, and a cover memberthat covers the magnetic scaleand also the through holesof the track member

Magnetic-scale-equipped motion guide apparatus

A motion guide device includes a plurality of rolling element guide members provided along the entire length of a rolling element rolling surface so as to guide the unloaded side of a plurality of rolling elements that perform a rolling movement under load between the rolling element rolling surface and a loaded rolling element rolling surface. The rolling element guide member includes a beam member an outer member including a rolling element guide surface for guiding the unloaded side of the rolling elements, and the beam member and the outer member are insert-molded. Such a structure provides the motion guide device including the rolling element guide member that enables low cost manufacturing of a complex shape and capability of secure installation and guidance of the rolling elements with no deflection and can be adapted for use in various types by optionally selecting a connecting means.

Motion guide device

A motion device () includes a track rail (), a moving body (), a plurality of rolling elements () rolling in an endless circulation passage formed at the track rail () and the moving body (), a pair of lid bodies () attached to end surfaces of the moving body () in a movement direction thereof, and a connector cover body () disposed along a rolling element rolling surface () formed at the moving body () to cover a rolling element connector () connecting and holding the rolling elements (). The connector cover body () has a frame-shaped cover member () which is fixed to the pair of the lid bodies () to be integrally disposed at both ends of the rolling element rolling surface () in a width direction thereof.

Motion device

A rolling guide device is capable of facilitating smooth circulation of rolling elements in an endless circulation path, and enhancing the accuracy of motion of a moving member relative to a track member. The moving member includes: a main body member having load rolling surfaces and return paths for the rolling elements; direction change pipes incorporating inner direction change paths and having inner peripheral guide surfaces of outer direction change paths, respectively; and lid members each being mounted on the main body member and having outer peripheral guide surfaces of the outer direction change paths. The main body member has position reference holes formed therein so as to serve as position references for the direction change pipes, respectively, whereas the direction change pipes have positioning protrusions formed thereon so as to be press-fitted into the position reference holes, respectively. Further, the direction change pipes include rotation restriction protruding portions.

Rolling guide device

A rolling guide device is capable of preventing a scooping piece formed on a circulation path module from being deformed along with use over time, and enhancing the durability of the scooping piece, thereby achieving smooth motion of a moving member relative to a track member. A moving member includes: a main body member having load rolling surfaces and return paths for rolling elements; direction change pipes having formed therein inner direction change paths and having inner peripheral guide surfaces of outer direction change paths, respectively; and lid members each being mounted on the main body member and having outer peripheral guide surfaces of the outer direction change paths. Each of the direction change pipes includes: a first half circulation segment and a second half circulation segment; and a scooping portion for guiding the rolling elements into each of the inner direction change paths.

Rolling guidance device

A motion device includes a track rail, a moving body, rolling elements, fixing members each fixed to an end surface of the moving body, and rolling element circulation members arranged between the moving body and the fixing members. The rolling element circulation members each have a connection section connected to the moving body so as to be rotatable about a Y direction, and a pair of first outside surfaces. The fixing members each have accommodation sections to accommodate the rolling element circulation members, and a pair of first inside surfaces closely contact with the pair of first outside surfaces. The respective rolling element circulation members and the accommodation sections are provided at both sides of the track rail interposed there between.

Growing community of inventors

Tokyo, Japan

Takuya Horie