Mitsubishi Heavy Industries Limited

Mitsubishi Heavy Industries Thermal Systems, Ltd.

Brother Kogyo Kabushiki-kaisha

Mitsubishi Heavy Industries Automotive Thermal Systems Co., Ltd.

Hitachi, Ltd.

Hitachi Building Systems Co., Ltd.

Showa Sangyo Co., Ltd.

Imasen Electric Industrial Co., Ltd.

Hitachi Home and Life Solutions, Inc.

Toyota Chemical Engineering Co., Ltd.

Wakamatsu Corporation

Toyota Tsusyo Corporation

Mitsubishi Industries Automotive Thermal Systems Co., Ltd.

Makoto Hattori

Masahiko Asai

Koji Nakano

Takayuki Takashige

Kazuki Niwa

Takashi Nakagami

Hiroyuki Kamitani

Hiroto Higuchi

Koji Toyama

Kyohei Watanabe

Shunsuke Yakushiji

Toyohisa Kawashima

Shinichi Isobe

Minoru Kawada

Saku Egawa

Yoshiyuki Ito

Takayuki Watanabe

Mikito Sasaki

Daisuke Matsuka

Koji Takahashi

Hidekazu Takahashi

Satoshi Nakamura

Masahiro Mori

Hideaki Deguchi

Takashi Hattori

Atsushi Miwa

Ryoichi Matsushima

Takayuki Hagita

Junichi Tamamoto

Takeshi Hirano

Hiroshi Murakami

Hiroshi Tokuda

Junki Ueyama

Kazushi Fukuta

Takehiro Masuda

Ryuhei Tanigaki

Hidetaka Sato

Takuma Yamashita

Takeshi Fuwazaki

Naruhito Muto

Keiji Nagasaka

Hirofumi Hirata

Koichi Yamanoue

Masumi Sekita

Taiji Tajima

Hirofumi Tanaka

Naoto Kunieda

Hirofumi Taguchi

Masato Itou

Toshiaki Hatano

Takeo Hayashi

Hiroyuki Sadamori

Hideto Noyama

Rikuo Sonoda

Kazunori Teshima

Wataru Yamamoto

Masashi Fujita

Yutaka Arai

Kenji Tsutsui

Yuuji Hosoda

Shigeo Kasai

Yuta Hamada

Kazuhiro Tomimasu

Masatoshi Ito

Hiroaki Yamato

Toshiyuki Kaneko

Hirohide Ando

Yoshikatsu Azuma

Hirohide Andoh

Makoto Ebisawa

Masahiro Goto

Takeshi Sakakibara

Nobuaki Hamanishi

Teruhiro Isayama

Mikito Wakamatsu

Masaharu Tanaka

Atsushi Takai

Takehiro Adachi

Mitsuaki Arita

This control device controls an inverter for driving a load, the control device comprising: a first generation unit for generating a first signal for performing two-phase modulation if a three-phase alternating current voltage for driving the load is generated; an acquisition unit for acquiring the weight of the load; a storage unit for storing corresponding relationships between the weight of the load and a phase shift amount of the first signal; an identification unit for identifying the phase shift amount corresponding to the weight of the load acquired by the acquisition unit in the corresponding relationship; and a second generation unit for generating a second signal in which the phase shift amount has been altered from the first signal on the basis of the phase shift amount identified by the identification unit.

Control device, inverter system, control method, and program

Provided is a method for continuing the operation of an electric compressor even if the magnitude of ripple voltage exceeds a predetermined threshold value. A control device of an electric compressor is provided with: a detection unit for detecting the ripple voltage of the electric compressor which is driven by a battery; a determination unit for determining whether or not the value of the ripple voltage is greater than or equal to a predetermined threshold value; and a control unit for reducing the rotation speed of a motor of the electric compressor down to a predetermined first target rotation speed greater than 0 when the value is greater than or equal to the threshold value.

Control device, electric compressor, control method, and program

A configuration that converts power from high voltage to low voltage by selectively connecting a predetermined storage element group to a low voltage electrical load from a high voltage power supply formed by connecting storage elements in series. In this configuration, the number of storage elements is set such that the voltage of each storage element group is slightly higher than the rated operating voltage of the low voltage electrical load means when the voltage of the storage elements is at its lowest. Along with this, a rectifying means and a smoothing circuit composed of an inductor and a capacitor are provided on the output side of the switching means to control the ratio of ON time and OFF time (dead time) of the switching means. As a result, a stable low-voltage power supply is constructed without being affected by changes in the voltage (SOC) of the storage element.

Power supply device for vehicle

Provided is a method for detecting a ripple voltage. A control device is provided with: an acquiring unit which acquires the voltage value of an input voltage of a battery-driven electric compressor at irregular intervals; and a waveform computing unit which computes the waveform of a ripple component of the input voltage on the basis of the acquired voltage value.

Control device, electric compressor, ripple voltage detecting method, and program

Provided is a method for determining the generation source of ripple voltage when abnormal ripple voltage is detected. The control device is for an electric compressor, the control device comprising: a detection unit that detects ripple voltage; a judgment unit that judges whether the ripple voltage is abnormal based on the value of the ripple voltage; and a cause determination unit that determines whether the cause of the abnormality is the electric compressor or some other external device, based on the control result of the electric compressor.

Control device, electric compressor, ripple voltage abnormality cause determination method and program

A work machine unit includes: a support member assembled to an end effector connection part of an operating machine; a work machine part assembled to one end of the support member; and a linear guide disposed at another end of the support member across its connection to the end effector connection part from the support member, arranged in parallel to an axial direction of the work machine part, and configured to abut against a work object or its peripheral structural object. Further, the linear guide is passed through a through-hole formed in the support member, and the support member is configured to move in the axial direction of the work machine part as guided by the linear guide.

Work machine unit and articulated robot

The present invention provides an intra-hoistway measurement system automatically measuring dimensions within an elevator hoistway prior to elevator installation to reduce labor of workers. An intra-hoistway measurement system according to the present invention includes: a reference laser device that is mounted to a structure on a ceiling or in an upper portion of the hoistway for an elevator and emits a laser beam toward a lowermost part; a mobile measuring device that has a plane measuring device to measure horizontal dimensions within the hoistway; and a moving device that is mounted to the structure on the ceiling or in the upper portion of the hoistway and moves the mobile measuring device up and down. The mobile measuring device has a reference laser detection device that detects the laser beam emitted from the reference laser device, and an attitude detection device that detects its own attitude.

Intra-hoistway measurement system

An electric compressor includes: a circuit board on which a plurality of switching elements () are mounted; a compression mechanism which is driven by a motor operated using AC power output from the switching elements (); and a lead holding member () disposed between element main bodies () of the switching elements () and the circuit board. The circuit board includes a plurality of through-holes through which a plurality of leads () that extend from the element main bodies () can be respectively inserted. The lead holding member () includes lead insertion holes () through which the leads () can be inserted such that positions of the leads () is held at positions that correspond to positions of the through-holes.

Electric compressor

A capacitor unit () includes: a harness side terminal () provided in a housing () for accommodating a capacitor main body therein and connectable to an electric power harness for supplying DC power from an outside; and a board side terminal () connectable to a circuit board from which the DC power is output via the capacitor main body. The board side terminal () extends in a plate shape from a base portion () held in the housing () toward a distal end portion () connected to the circuit board, and has a notch portion () recessed inward of the board side terminal () in a width direction between the base portion () and the distal end portion ().

Capacitor unit, and electric compressor

A control device for a compressor includes an operation stop control unit that stops the compressor in a procedure different from a normal stop request signal when a signal different from the normal stop request signal that requests the compressor to stop in a predetermined procedure and a forced stop request signal from a device including the compressor is detected. The operation stop control unit stops the compressor in the different procedure according to a speed of the compressor when the forced stop request signal is detected.

Control device for electric compressor, electric compressor, air conditioning device for moving object, and method for controlling electric compressor

A current estimating device that estimates a capacitor current of a high-voltage circuit for driving a motor, wherein the current estimating device calculates a voltage utilization rate using the input voltage of an inverter included in the high-voltage circuit and the speed of the motor, calculates a first constant by applying the voltage utilization rate to a predetermined first arithmetic expression, and calculates the capacitor current of an electrical condenser included in the high-voltage circuit by multiplying the first constant by a motor current effective value.

Current estimating device, electric compressor, current estimating method, and motor current effective value estimating method

A motor control device provided with a control unit which controls the number of rotations of a motor by implementing a first control which enables high-torque and precise control, or a second control enabling more efficient control than the first control with respect to the motor; and a switching determination unit which, if an actual measurement value of the number of rotations of the motor is greater than a prescribed threshold value of the number of rotations, switches the first control to the second control. The switching determination unit further switches the first control to the second control if the actual measurement value of the number of rotations is not more than the threshold value of the number of rotations, and when a prescribed time has passed from a point in time at which the actual measurement value of the number of rotations matched the required number of rotations.

Electric compressor, motor control method, and non-transitory computer-readable medium

A power conversion circuit board () is a circuit board on which a power conversion circuit configured to convert a direct current into an alternating current is mounted. A low-voltage circuit () to which a low voltage is applied and a high-voltage circuit () to which a high voltage is applied are separately disposed in different areas on the same circuit board surface. Furthermore, part of wiring of the high-voltage circuit () is formed on the circuit board surface, and the other wiring is constituted by a bus bar provided at a predetermined distance from the circuit board surface.

Power conversion circuit board and electric compressor

A capacitor unit () includes: a harness side terminal () provided on a first end portion () side of a first surface of a housing () for accommodating a capacitor main body therein; a board side terminal () provided in the housing () and connectable to a circuit board; and a plurality of guide portions () that protrude from the first surface and extend from a second end portion () on a side opposite to the first end portion () toward the first end portion (). The plurality of guide portions () are provided to be separated in a second direction orthogonal to a first direction of connecting the first end portion () and the second end portion () to each other so as to sandwich the harness side terminal () therebetween.

Insulating material for electric compressor

Growing community of inventors

Tokyo, Japan

Makoto Hattori