Kubota Corporation

Panasonic Intellectual Property Management Co., Ltd.

Matsushita Electric Industrial Co., Ltd.

Atsushi Shinkai

Keishiro Nishi

Kazuo Sakaguchi

Yushi Matsuzaki

Kenji Tamatani

Megumi Suzukawa

Izuru Shimamoto

Yasunobu Nakatani

Eiji Nishi

Kotaro Yamaguchi

Tomofumi Fukunaga

Takahiro Nakatsuka

Yoshiharu Oomori

Yasuhisa Uoya

Hiroki Suga

Takafumi Morishita

Kenji Ueno

Atsushi Haramoto

Shigeki Hayashi

Susumu Umemoto

Shogo Nakayama

Yoshitomo Fujimoto

Hideki Tanaka

Hironobu Chiba

Hisao Mukai

Michita Kono

Kenichi Matsushima

Takeshi Ichihara

Atsushi Kobayashi

Takuji Kawashima

Masakatsu Nawate

Eiichi Uriu

Osamu Shibata

Yutaka Taguchi

Yoshiharu Omori

Hiroshi Suenaga

Nobushige Ichikawa

Yoshihiko Kuroshita

Hidetoshi Hana

Akiyoshi Ono

Ryohei Harada

Tomoyuki Washizaki

Takaharu Yoshida

Kazutoshi Matsumura

Akisato Hori

Isamu Morimoto

Takeshi Orita

Kenji Kato

Kazunobu Sugano

Hironori Motomitsu

Kazuo Oishi

Yoichi Sugihara

Muneji Okamoto

Chie Sasaki

Issei Tanimura

Nariaki Ishida

Tomoya Omura

Yoichi Nagaso

Toshikazu Kawamoto

Norio Obata

A common mode noise filter includes an insulating layer, a first coil conductor disposed on a first surface of the insulating layer and extending slenderly, and a second coil conductor disposed on a second surface of the insulating layer and extending slenderly. The second coil conductor faces the first coil conductor across the insulating layer. A portion of the second coil conductor has a cross section crossing a direction in which the portion of the second coil conductor extends slenderly. The cross section includes an apex portion facing the first coil conductor across the insulating layer and a base side portion opposite to the apex portion. A width of the apex portion is smaller than a width of the base-side portion. The common mode noise filter reduces attenuation of differential signals in high frequencies.

Common mode noise filter

A working vehicle includes a traveling vehicle to autonomously travel on a target traveling route, a working device attached to the traveling vehicle, an offset acquirer to acquire an offset amount and offset direction in a vehicle width direction between a width directional center of the traveling vehicle and a predetermined point in the working device, and a traveling position corrector to correct, based on the offset amount and the offset direction acquired by the offset acquirer, a traveling position of the traveling vehicle so that the predetermined point is located on the target traveling route.

Working vehicle

A working vehicle includes a vehicle body capable of traveling, a ground working device attached to the vehicle body to perform ground working, an imaging device located on the vehicle body to image a ground working result after the ground working by the ground working device, and a storage to store a ground working image representing the ground working result taken by the imaging device.

The present invention is provided to more reliably keep a work vehicle from coming into contact with an obstacle during automated driving. The work vehicle includes an electronic control system for automated driving that automatically drives the vehicle body. The electronic control system includes an obstacle detection module configured to detect presence or absence of an obstacle, and a contact avoidance control unit configured to perform, upon the obstacle detection module detecting an obstacle, contact avoidance control to keep the vehicle body from coming into contact with the obstacle. The obstacle detection module includes a plurality of obstacle searchers that are distributed on the front end portion and the right and left end portions of the vehicle body such that the front side and the right and left lateral sides of the vehicle body are search-target areas.

Work vehicle

A work vehicle includes: an electronic control system for automatic driving; and a cabin with which a boarding space is formed. The electronic control system includes an antenna unit for satellite navigation, and the antenna unit is attached to a central area of a roof of the cabin in a left-right direction. An upper surface of an area of the roof around the antenna unit is formed so as to be an inclined surface that is inclined in a front-rear direction. Left and right end portions of the roof are provided with left and right bulging edge portions that bulge upward from the left and right end portions and have a length that spans between front and rear ends of the roof, and water drain grooves that guide water on the roof toward the left and right bulging edge portions such that water detours the antenna unit.

An objective is to appropriately position a communication module that carries out wireless communication to exchange information regarding cooperative travel with another vehicle, in order to simplify the measures that are to be taken to avoid thermal damage, and prevent antenna cables from being damaged, for example. A work vehicle includes: a cabinin which a boarding space is formed; and an electronic control system for automatic driving through which a vehicle body is automatically driven. The electronic control system includes a positioning unit that measures the position and orientation of the vehicle body, and a cooperation control unit that causes the vehicle body to automatically travel in cooperation with another vehicle. The cabinis provided with a roofthat provides a storage spaceA that is surrounded by an inner roofand an outer roof. The cooperation control unit includes a communication modulethat wirelessly communicates with another vehicle to exchange information regarding cooperative travel with the other vehicle, including vehicle body position information. Antennas of the communication moduleare provided on an upper end portion of the cabin, and a communication information processing apparatusof the communication moduleis provided in the storage spaceA.

A work vehicle includes a wheel supporting memberthat is supported by a vehicle body framethat includes left and right side members; left and right steerable wheels that are supported by the wheel supporting memberso as to be steerable; and a steering mechanismthat includes a power steering unitand steers the left and right steerable wheels. The power steering unitis located near the wheel supporting membersuch that at least a portion of the power steering unitis located between the left and right side members

A travel route generation device for a field work vehicle includes a memory and circuitry. The circuitry is configured to generate, based on field data stored in the memory, a travel route. The circuitry is configured to determine a getting-off point in the travel route at which a driver gets off the field work vehicle. The circuitry is configured to determine a getting-on point in the travel route at which the driver gets on the field work vehicle. The circuitry is configured to define a first partial route in the travel route between the entrance and the getting-off point and a second partial travel route in the travel route between the getting-on point and the entrance as a manual travel route. The circuitry is configured to define a third partial travel route in the travel route between the getting-off point and the getting-on point as an automatic travel route.

Travel route generation device and method for generating travel route for field work vehicle

A work-vehicle position measurement system includes a reference station and a work vehicle. The reference station is provided at a reference position to measure a measured position of the reference position by receiving a radio wave from a satellite and to transmit reference information including the measured position. The work vehicle includes circuitry configured to obtain a calculated position of the work vehicle based on satellite information from the satellite and the reference information transmitted from the reference station, to control the work vehicle to travel along a predetermined travel route in a work field based on the calculated position of the work vehicle, and to manage map data of the work field to correspond to the reference information of the reference position.

Work-vehicle position measurement system, work vehicle, and work-vehicle position measurement method

There is a need for a work vehicle that allows accurate traveling time management in a work site traveling. A work vehicle includes a vehicle body mounting a traveling mechanism, an implement mounted on the vehicle body and configured to effect a ground work on a work site, a satellite positioning modulefor outputting positioning data, a traveling distance calculation sectionfor calculating a traveling distance of the vehicle body based on the positioning data, a traveling time calculation sectionfor calculating an actual distance traveling time from a time required for traveling of traveling distance calculated by the traveling distance calculation sectionand a work management sectionfor managing the ground work based on the actual distance traveling time.

Work vehicle and time-based management system applicable to the work vehicle

Resource consumption of a work vehicle in a specified work site is estimated more appropriately and a resource replenishment timing is calculated appropriately. A resource replenishing system for a work vehicle that effects work-implementing travel in a work site while consuming an amount of resource supplied from an energy source pack mounted on its vehicle body includes a consumption amount recording sectionfor recording an actual unit consumption amount of the resource together with work contents as work history, a work plan management sectionfor managing work plan information containing the work contents, an estimated consumption amount calculation sectionfor calculating an estimated unit consumption amount of the resource consumed per unit work amount of the work vehicle implemented based on the work plan information, with reference to the work history, and a replenishment management sectionfor calculating a replenishment timing for replenishing the resource to the energy source pack, based on the estimated unit consumption amount.

Resource replenishment system and work vehicle

A travel route generation device includes circuitry configured to calculate positions of a starting point, an end point, and intermediate points from a start vehicle position, an end vehicle position, and intermediate vehicle positions, respectively, based on a distance from a contour point to a reference point. The circuitry is configured to define the shape of the target work region by calculating a line connecting the starting point, the intermediate points, and the end point, the line defining the shape of the target work region. The circuitry is configured to generate a travel route along which the work vehicle is to travel in the target work region.

Travel route generation device and travel route generation method

An obstacle detection device includes an ultrasonic sensor, an obstacle detector to determine presence of an obstacle of interest if an intensity of a received ultrasonic wave exceeds a threshold value, and a threshold value setter to set a short-distance detection threshold value as the threshold value for the obstacle detection in a short-distance detection area in a vicinity of the ultrasonic sensor and to set a long-distance threshold value as the threshold value for the obstacle detection in a long-distance detection area located farther from the ultrasonic sensor than the short-distance detection area, the long-distance threshold value being less than the short-distance detection threshold value. The short-distance detection area is an area where variation in sound pressure distribution of transmitted ultrasonic waves is equal to or greater than the threshold value, and the long-distance detection area includes an area where the variation of the sound pressure distribution of transmitted ultrasonic wave is smaller than the threshold value.

Obstacle detection device

A controller for a work machine includes a steering control circuit, a memory, and a speed control circuit. The steering control circuit is configured to control a steering of the work machine to change a steering angle based on a travel route. The memory is to store a threshold angle. The speed control circuit is configured to control a speed of the work machine if the steering angle is equal to or larger than the threshold angle and if the steering control circuit does not control the steering.

Controller for work machine, control method for work machine, and work machine

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Sakai, Japan

Atsushi Shinkai