Hitachi, Ltd.

Mitsubishi Jidosha Kogyo Kabushiki Kaisha

Hokkaido University

Mitsubishi Electric Corporation

Renesas Technology Corp.

Other

Renesas Electronics Corporation

Hitachi Device Engineering Co., Ltd.

Nec Corporation

Mitsubishi Denki Kabushiki Kaisha

Shimadzu Corporation

Hitachi Ulsi Engineering Corp.

National Univ. Corporation Hokkaido Univ.

Naoki Miyamoto

Kikuo Umegaki

Norihiko Ikoma

Toru Umekawa

Taeko Matsuura

Takayuki Kawahara

Ryo Shimizu

Makoto Kamachi

Shinichi Shimizu

Hironori Abe

Seishin Takao

Yusuke Vincent Fujii

Hiroshi Sato

Yoshikazu Yokota

Shoji Kubono

Toshio Mizuno

Kazuo Ookado

Toshinori Harada

Takayuki Nakaji

Takatoshi Uchida

Kazuya Endo

Kazuyoshi Shiba

Takesada Akiba

Masahiro Yoshida

Yasushi Kawase

Hiroki Shirato

Yuichi Hirata

Susumu Ishida

Yasushi Nagata

Satoshi Nishida

Masumi Umezawa

Shuichi Fujikawa

Kenta Hatano

Taisuke Takayanagi

Hiroaki Kurokawa

Koichi Miyazaki

Kenji Kumamoto

Toshiyuki Umemoto

Takaaki Fujii

Hiroshi Kino

Mototoshi Kumaoka

Hideki Mito

Katsutaka Kimura

Kazuo Hiramoto

Junichi Nishimae

Tatsuya Yamamoto

Satoshi Fujimura

Hirofumi Doi

Tomotaka Katsura

Daiji Morita

Tomohiro Kyoto

Yoshihiko Nagamine

Takanori Sugimoto

Toshiki Koshimae

Shinichiro Fujitaka

Yusuke Jyouno

Yukio Nishimoto

Susumu Konno

Masayori Ishikawa

Hideaki Nihongi

Chihiro Nakashima

Rika Baba

Syunichi Saeki

Yusuke Fujii

Tomoki Murata

Toshie Sasaki

Tsuyoshi Sasagawa

Sodai Tanaka

Satoshi Tomioka

Chie Toramatsu

Seiji Yamanaka

Junichi Yamazaki

Masayuki Yamaji

Hirokazu Yamawaki

Norio Katoh

A motor control device for an electric vehicle, which includes a power transmission path configured such that an output of a first motor and an output of a second motor are, respectively, transmittable to left and right wheels of the vehicle via a differential mechanism, includes a non-interference correction part for predictively correcting an output from a first motor control part or a second motor control part to an opposite motor to a motor performing vibration suppression correction via the power transmission path, such that a change in motor output by a vibration suppression correction torque amount cancels an interference torque interfering with a motor output of the opposite motor.

Motor control device for electric vehicle

A treatment planning system that generates treatment planning for irradiating a target with a particle beam, includes an arithmetic processing device that sets at least two or more irradiation patterns for one treatment planning, calculates a plurality of predicted dose distributions for each irradiation pattern based on a target dose set for each region for at least one region including a region of the target, and calculates an index for evaluating validity of the irradiation pattern based on the plurality of predicted dose distributions.

Treatment planning system, treatment planning generation method, and recording medium

This radiotherapy device comprises: an X-ray irradiation device and an X-ray camera for detecting the position of a specific landmark present in an irradiation target; a storage unit which, with one from among a plurality of time-lapse three-dimensional CT images including the landmark and obtained beforehand during treatment planning used as a reference images, stores the relationship between the displacement of the landmark position from that in the reference image to that in another three-dimensional CT image, and the deformation of each of the sites in the other CT image, obtained by analysis thereof; and an image processing unit, a deformation amount evaluation unit, and a display unit, that estimate the deformation of each of the sites and reproduce the estimated three-dimensional CT image, according to the position of the landmark detected and the relationship stored by the storage unit.

Radiotherapy device and radiotherapy method

The disclosed vehicle braking device controls a hydraulic brake system () and a regeneration brake system () mounted on a vehicle () in accordance with an acceleration value and a brake value, and includes a first divider (), a second divider (), and a controller (). The first divider () divides a driver demand torque set according to the accelerator value into a target coast torque and a remaining torque. The second divider () divides a sum of a deceleration torque set according to the brake value and the target coast torque divided by the first divider () into a hydraulic-brake demand torque and a regeneration-brake demand torque. The controller () controls the hydraulic brake system (), using the hydraulic-brake demand torque, and controls the regeneration brake system (), using a total regeneration brake torque calculated from the remaining torque and the regeneration-brake demand torque. This configuration can improve the feeling of operating the brake, resolving the feeling of the shortage of deceleration.

Vehicle braking device

The present invention makes it possible to provide a radiation therapy system capable of not only inhibiting treatment time from increasing more effectively than before but also reducing the loads of fluoroscopic radiation photographing apparatuses. The radiation therapy system has: a therapeutic radiation irradiation apparatus to irradiate a target with therapeutic radiation; two fluoroscopic radiation photographing apparatuses to photograph the target simultaneously from two directions; a target position computation apparatus to compute a three-dimensional position of the target on the basis of photographed fluoroscopic images; a therapeutic radiation irradiation control apparatus to control the irradiation of the therapeutic radiation on the basis of the computed three-dimensional position of the target; and a fluoroscopic radiation photographing control apparatus to control irradiation quantities per unit time of the fluoroscopic radiation photographing apparatuses on the basis of the three-dimensional position of the target.

Radiation therapy system

Through the present invention, three-dimensional coordinates of a tracking object moving in an irradiation object can be calculated from fluoroscopic X-ray images captured and acquired from various angles in a single fluoroscopic X-ray device mounted to a radiation therapy apparatus. The three-dimensional coordinates of the tracking object are calculated on a straight tracking object presence line connecting an X-ray generating device for fluoroscopy and the position in an X-ray plane detector of the tracking object on the fluoroscopic X-ray image acquired by the X-ray generating device for fluoroscopy and the X-ray plane detector, and using line segment information included in a movement region of the tracking object set in advance.

Radiation therapy apparatus configured to track a tracking object moving in an irradiation object

A template matching is performed on two fluoroscopic images by using a template image prepared in advance and a position corresponding to a high matching score is listed as a candidate for the position of a marker. From two lists of the candidates of the position of the marker, the lengths of common vertical lines for all combinations are calculated. Then, the position of the markeris detected based on the matching score and the common vertical line. Then, based on the detected position of the marker, an amount of a proton beam to be irradiated to a target is controlled. Therefore, a tracking target can be accurately detected even when the conditions for X-ray fluoroscopy is severe, e.g., a thick object.

Radiation irradiating system and moving object tracking system

Provided are a moving body tracking apparatus that contributes to shortening treatment time and a radiation therapy system including the moving body tracking apparatus, a program, and a moving body tracking method. The moving body tracking apparatus includes a fluoroscopic apparatus that acquires fluoroscopic images including the targetfrom at least two directions, and the moving body tracking control apparatusA that obtains a position of the targetfrom the fluoroscopic images acquired by the fluoroscopic apparatus. The moving body tracking control apparatusA creates a simulated fluoroscopic image from the CT image including the target, creates a two-dimensional region including the targetfrom the simulated fluoroscopic image as a template, matches each of at least two fluoroscopic images with the template, and obtains a three-dimensional position of the targetfrom a plurality of matching results.

Moving body tracking apparatus, radiation therapy system including the same, program, and moving body tracking method

A tumor tracking control device () performs windowing process on a captured image A () and a captured image B (), measures a position of a marker () using the captured image A () and the captured image B () after performing the windowing process, and generates a signal capable of controlling irradiation with radiation based on the position of the marker (). Accordingly, it is possible to provide a tumor tracking apparatus and an irradiation system which are capable of tracking an object to be tracked without erroneous detection, even in a case where a structure similar to the object to be tracked is in the vicinity of the object to be tracked, in tumor tracking.

Tumor tracking apparatus and irradiation system

A fuel maintenance guide system is provided in a hybrid vehicle in which a shift to a fuel maintenance mode prioritizing consumption of fuel is automatically performed under a predetermined condition regardless of a driver's intention. The fuel maintenance guide system includes an information notification unit configured to perform notification of information urging consumption of the fuel, and a control unit configured to estimate a time to shift automatically to the fuel maintenance mode and to begin to perform notifying actuation of the information notification unit a predetermined period of time before the estimated time.

Fuel maintenance guide system in hybrid vehicle

In a hybrid vehicle including a front motor for driving front wheels, a rear motor for driving rear wheels, a generator for generating power by being driven by an internal combustion engine, and a step-up converter for stepping up the voltage from a battery and supplying power to the front motor, while stepping-down the generated power of the generator and supplying the power to the rear motor, a hybrid control unit decreases the power supplied from the generator to the rear motor, and increases the power supplied from the battery to the rear motor when input power of the step-up converter is limited based on a temperature condition of the step-up converter.

Travel driving apparatus of vehicle

A controller of a hybrid vehicle includes: a control unit configured to activate a starter device for starting any one of a drive motor and an engine by stepping up electric power from a battery by a voltage transformer. The control unit includes a limitation part that limits passing power of the voltage transformer when the temperature of the voltage transformer rises, and a calculation part that obtains a maximum electric power that can be supplied to the drive motor when the starter device is activated, by subtracting a consumed power of the starter device from limited power during limitation of passing power by the limitation part. The control unit activates the starter device and starts the engine, when required power of the drive motor reaches the maximum electric power calculated by the calculation part during limitation of passing power by the limitation part.

Controller of hybrid vehicle

A fuel maintenance guide system in hybrid vehicles in which a shift to the fuel maintenance mode giving priority to consuming fuel is executed automatically under a predetermined condition regardless of intention of a driver, the fuel maintenance guide system including: a residual fuel detecting unit detecting a residual amount of the fuel; a cancel condition determining unit determining a cancel condition for cancelling the shift to the fuel maintenance mode, based on the residual amount detected by the residual fuel detecting unit; and a displaying unit displaying the cancel condition determined by the cancel condition determining unit from a predetermined time period before the shift to the fuel maintenance mode.

A power controller of a hybrid vehicle includes: a first drive motor that drives any one of a front wheel and a rear wheel of a vehicle; an engine that drives the one wheel or the corresponding other one of the front wheel and the rear wheel of the vehicle through a clutch; a generator that is driven by the engine; and a voltage transformer that steps down generated electric power supplied to the first drive motor and a battery from the generator. The power controller limits passing power of the voltage transformer according to the temperature of the voltage transformer, and connects the clutch when the passing power of the voltage transformer is limited.

Power controller of hybrid vehicle

In a hybrid vehicle including a front motor for driving front wheels, and a step-up converter for stepping up voltage from a battery to supply power to the front motor, in which power regenerated by rotational force of the front wheel during vehicle deceleration is stepped down by a step-up converter and can be supplied to a battery, the hybrid vehicle includes a hybrid control unit which computes maximum input power of the step-up converter and regenerated power of the front motor during vehicle deceleration, and sets a difference obtained by subtracting regenerated power of the front motor from the maximum input power of the step-up converter to the maximum generated power of the generator.

Growing community of inventors

Tokyo, Japan

Naoki Miyamoto