Fujitsu Ten Limited

Kawasaki Jukogyo Kabushiki Kaisha

Masahiro Yamada

Ryo Yamamoto

Yasuyoshi Sawada

Yukito Imamura

Azusa Matsuoka

Yoji Yudate

Shinichi Moriyama

Miki Murasumi

Takumi Hayashida

Tadashi Anada

Susumu Taniguchi

Naoyuki Okada

Hideyasu Muraoka

Masahiro Suzuki

Hideki Tanaka

Kouei Kiyo

Kazuto Fujiyama

Yuka Shidochi

Kenta Shimizu

Ryuichi Morimoto

Keita Morikawa

Minoru Fujioka

Toshinori Esaka

Toru Morita

Masamichi Maruyama

Noriaki Takakura

Kenjirou Hara

A spool valve device includes: a housing with channels; a spool moving to change channel connection statuses; an electric actuator including an electric motor and linear-motion conversion mechanism, the motor rotating an output shaft by torque corresponding to a drive current supplied to the motor, the mechanism converting rotational output shaft movement into straight movement and applying thrust corresponding to the torque to the spool to change position; a biasing member applying biasing force to the spool against the actuator thrust; an angle detector detecting an motor output shaft angular position; a driving portion driving the motor by controlling drive current flow supplied to the motor based on a position command input and the angular position detected by the angle detector; and an abnormality determining portion calculating the spool position based on the detected angular position and determine presence or absence of operation spool abnormality.

Spool valve device and spool valve

An image processing apparatus for processing an image according to one embodiment includes a generating unit, a display control unit, and a change receiving unit. The display control unit generates a synthetic image providing a view of a vehicle from a virtual viewpoint, based on a plurality of onboard camera images. The display control unit displays the generated synthetic image on a display unit. The change receiving unit receives a change in the relative positional relation between an image region that is based on one of the camera images and image regions that are based on the other camera images in the synthetic image. The generating unit generates a synthetic image, based on a changed positional relation every time a change in the positional relation is received.

Image processing apparatus and image processing method for generating synthetic image and changing synthetic image

A tilting angle control device includes pressure sensors. Each of the pressure sensors outputs to a control unit a pressure command signal corresponding to an operation amount. The control unit outputs to an electromagnetic proportional control valve a pressure control signal corresponding to the pressure command signal, and the electromagnetic proportional control valve outputs to a tilt adjustment mechanism pilot pressure corresponding to the pressure control signal. The tilt adjustment mechanism adjusts a tilting angle of a variable displacement pump such that the tilting angle becomes an angle corresponding to the pilot pressure. A pilot pressure sensor detects the pilot pressure to output a pressure feedback signal to the control unit. The control unit calculates the pressure control signal based on the pressure feedback signal and the pressure command signal and performs feedback control of the pilot pressure.

Tilting angle control device

An image generation unit uses a plurality of captured image data and vehicle body data of a vehicle to continuously generate a virtual perspective image indicating the vehicle body of the vehicle and the periphery of the vehicle as seen from a virtual perspective (VP) positioned within the cabin of the vehicle. An image control unit alters the angle in a plan view of the line of sight of the VP in a manner such that the line of sight circles the surroundings of the vehicle, and moves the position of the VP in the front-back direction of the vehicle.

Image generation device, image display system, image generation method and image display method

There is provided an image generation apparatus used for a vehicle having side mirrors. An image acquisition unit is configured to acquire a plurality of captured images obtained by a plurality of cameras including side cameras provided in the side mirrors. A generation unit is configured to generate a composite image which indicates a periphery of the vehicle viewed from a virtual viewpoint, by using target areas defined for the respective captured images. A state acquisition unit is configured to acquire a developed or folded state of the side mirrors. The generation unit changes the target areas in accordance with the developed or folded state of the side mirrors.

Image generating apparatus, image displaying system, parameter acquiring apparatus, image generating method and parameter acquiring method

An image processing apparatus determines a transparency percentage of each of plural portions of a cabin image of a vehicle, causes the plural portions to be semi-transparent or to be transparent at the determined transparency percentages and displays the cabin image. Thus, the user can intuitively understand a positional relationship between the vehicle and a surrounding region and does not miss an obstacle in a course of traveling of the vehicle.

Image processing apparatus

A plurality of light sources to assist in image capturing is attached to a vehicle at low cost and simplicity. Three light sources that illuminate a side area in the same direction of the vehicle are fixed to and accommodated in the same housing in a state where light axes of the light sources are directed to different directions from each other. Through this, the three light sources are integrated into a side camera unit by the housing. Accordingly, by attaching the side camera unit only, the light sources can be attached to the vehicle at a time. As a result, the light sources for widely illuminating the side area of the vehicle can be mounted on the vehicle at low cost and simplicity.

In-vehicle illuminating apparatus, image processing apparatus, and image displaying system

An image acquisition part acquires a plurality of shot images captured by a plurality of cameras disposed on a vehicle, each of the plurality of shot images showing a periphery of the vehicle. An image composer projects data of the plurality of shot images onto a virtual projection surface corresponding to the periphery of the vehicle, and generates a composite image showing the periphery of the vehicle viewed from a virtual viewpoint, using the data projected onto the virtual projection surface. The image composer uses, as the virtual projection surface, a special virtual projection surface that includes a curved area having an upward convex curve. The curved area includes an area where a distance from a location of the vehicle is relatively short and a slope is relatively high, and another area where the distance from the location of the vehicle is relatively long and the slope is relatively low.

Image generator

An image generating apparatus generates a vicinity image including a vehicle and a vicinity of the vehicle viewed from a virtual viewpoint, based on a captured image, and generates a combined image by superimposing a vehicle image of the vehicle on the vicinity image. Then the image generating apparatus generates the vehicle image in a frame style that shows a body frame of the vehicle by frame lines and changes a style form in the frame style in accordance with a predetermined condition.

Image generating apparatus

In drive control of an operating machine configured to drive a structure by a hydraulic motor configured to be driven by operating oil supplied from a hydraulic pump an electric motor configured to cooperate with the hydraulic motor, a speed command generated based on a manipulation amount of a remote control valve configured to determine an operation amount of the structure is subjected to speed feedback control performed based on the actual rotation speed of the hydraulic motor and pressure difference feedback control performed based on an operating oil pressure difference between a suction port and discharge port of the hydraulic motor. With this, a tilting angle command is generated such that the operating oil, the amount of which is necessary at the actual rotation speed of the hydraulic motor, is ejected, and the tilting angle of the hydraulic pump is controlled.

Drive control method of operating machine

An electro-hydraulic drive system for a work machine which drives an upper rotary body by controlling a flow rate of a hydraulic fluid by a control valve, includes an electro-hydraulic pump including a hydraulic pump driven by an engine, and a first electric motor, and an electro-hydraulic motor including a hydraulic motor rotated by the hydraulic oil supplied from the electro-hydraulic pump, and a second electric motor, and a controller which determines an operating state of the first electric motor and an operating state of the second electric motor based on a load of the electro-hydraulic pump and a load of the electro-hydraulic motor, and is able to perform an efficient operation by using a hydraulic pressure (fluid pressure) and electric power.

Electro-hydraulic drive system for a work machine

An electric double-layer capacitor, which provides enhanced heat release-ability with a simple configuration ensuring vibration resistance and impact resistance and to improve durability in a severe marginal environment, is provided. The electric double-layer capacitor includes capacitor cells; a pair of end plates, respectively disposed on both sides of a plurality of parallelly arranged capacitor cells; a metallic case for housing the end plates, a plurality of capacitor cells; and an insulating resin, filling the interior of the metallic case to cover the end plates, a plurality of capacitor cells and lead terminals, wherein the electric double-layer capacitor further includes an external connecting terminal having two end sections, one of the end sections being disposed in the end plate within the insulating resin, and wherein the lead terminal of the capacitor cell disposed adjacent to the end plate is configured to be connected to the one of the end sections of the external connecting terminal.

Electric double-layer capacitor

In drive control of an operating machine configured to drive a structure by a hydraulic motor configured to be driven by operating oil supplied from a hydraulic pump through a control valve and an electric motor configured to cooperate with the hydraulic motor, a speed command generated based on a manipulation amount of a remote control valve configured to determine an operation amount of the structure is subjected to speed feedback control performed based on an actual rotation speed of the hydraulic motor and pressure difference feedback control performed based on an operating oil pressure difference between a suction port and discharge port of the hydraulic motor.

An electricity-oil hybrid motorincludes an oil-pressure motorand an electric motor. The electricity-oil hybrid motorincludes a rotating shaftand causes the rotating shaftto rotate by supplied operating oil. The electric motorincludes a rotorconnected to the rotating shaft, a statorprovided around the rotor, and a housingin which the rotorand the statorare accommodated. The rotorand the housingare provided so as to surround and cover a casingof the oil-pressure motor. The housingincludes a rotating shaft accommodating spacein which the rotating shaftis accommodated and a stator accommodating spacein which the stator is accommodated. A sealing memberconfigured to separate the accommodating spacesandis provided in the housing

Electricity-liquid hybrid liquid-pressure apparatus

A resolver signal converter and a resolver signal conversion method amplify and perform analogue-digital conversion on a sine wave output from a resolver; thereafter, among frequency components of the sine wave output, pass and thereby extract a predetermined bandwidth of which the center frequency is the frequency of an excitation signal, by means of a band-pass filter; sample the sine wave output while synchronizing the sine wave output with a reference signal which is based on the excitation signal; and generate a detection angle signal sine value from the sampled signal. Similarly, a detection angle signal cosine value is generated from a cosine wave output from the resolver. A detection angle is calculated based on the detection angle signal sine value and the detection angle signal cosine value. Accordingly, an influence, on an input resolver signal, of disturbance noise such as noise caused due to a magnetic field generated by a motor and switching noise caused due to PWM driving, is eliminated, and frequency dependence of arithmetic processing is eliminated. As a result, detection angle errors are reduced.

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Kobe, Japan

Masahiro Yamada