Mitsubishi Denki Kabushiki Kaisha

Nsk Corporation

Mitsubishi Electric Corporation

Toshiba Ceramics Co., Ltd.

Mitsubishi Heavy Industries Food & Packaging Machinery Co., Ltd.

Kenichi Okamoto

Takashi Yumura

Shuji Endo

Kenji Utsunomiya

Hiroshi Kigawa

Shunzo Shimai

Yuho Aoki

Mineo Okada

Koichi Imura

Minoru Danno

Hideo Yamakoshi

Atsushi Ueda

Tatsuo Matsuoka

Yoshikatsu Hayashi

Yuji Asahara

Seiji Goto

Tadayoshi Muto

Takaharu Ueda

Shin Kumagai

Masashi Ueno

Daiki Fukui

Takuo Kugiya

Koichi Shiraishi

Kuniko Ando

Ichiro Shibata

Akiko Niizuma

There is provided an in-vehicle electronic control apparatus suitable for enhancing a robust characteristic of a failure diagnosis process performed for a functional part having a function relating to a drive-control of an actuator. A functional part () relating to the drive-control of an electric motor () includes a main functional part () and an alternative functional part () that is an alternative of the main functional part.

In-vehicle electronic control apparatus

In an elevator apparatus, a car is suspended by a suspending device. A braking apparatus applies a braking force to the car by the suspending device. An excessive speed detection level that changes in response to car position is set in an excessive speed monitoring portion. The excessive speed monitoring portion makes the braking apparatus perform a braking operation when car speed reaches the excessive speed detection level. An anomalous acceleration detecting mechanism operates a safety device if acceleration that exceeds a preset set value arises in the car.

Elevator apparatus including an anomalous acceleration detecting mechanism

In an elevator apparatus, a car is suspended by a suspending means. The car is raised and lowered by a driving apparatus by means of the suspending means. The car is braked by a braking apparatus. An abnormal acceleration detecting mechanism operates the braking apparatus to stop the car if acceleration that exceeds a preset set value arises in the car.

Elevator with acceleration detection

An in-vehicle electronic control device for diagnosing the details of an abnormality of a microcomputer appropriately is provided. A monitoring function for detecting a malfunction by monitoring input/output of a main function of a hardware part and a monitoring function for detecting an abnormality by monitoring the calculating result of a main function in a software part are provided in a microcomputer. The main function to be monitored is implemented with a different structure than the malfunction/abnormality monitoring function. Furthermore, a malfunction processing circuit for monitoring an abnormality of the microcomputer is provided outside the microcomputer.

In-vehicle electronic control device

An inner electrode for barrier film formation is an inner electrode for barrier film formation that is inserted inside a plastic container having an opening, supplies a medium gas to the inside of the plastic container, and supplies high frequency power to an outer electrode arranged outside the plastic container, thereby generating discharge plasma on the inner surface of the plastic container to form a barrier film on the inner surface of the plastic container, and that is provided with a gas supply pipe having a gas flow path to supply a medium gas and an insulating member screwed into an end portion of the gas supply pipe to be flush therewith and having a gas outlet communicated with the gas flow path.

Inner electrode for barrier film formation and apparatus for film formation

An inner electrode for barrier film formation is an inner electrode for barrier film formation that is inserted inside a plastic container having an opening, supplies a medium gas to the inside of the plastic container, and supplies high frequency power to an outer electrode arranged outside the plastic container, thereby generating discharge plasma on the inner surface of the plastic container to form a barrier film on the inner surface of the plastic container, and that is provided with a gas supply pipe () having a gas flow path () to supply a medium gas (G) and an insulating member () screwed into an end portion of the gas supply pipe () to be flush therewith and having a gas outlet () communicated with the gas flow path ().

Since the elevator type is varied, a set value used for judging car oscillation must be set for each elevator, which requires much time and labor. Also, if the criteria of all elevators are represented by one set value to eliminate the time and labor required for the setting, variations in detection occur. A car oscillation detecting device includes a means in which a set value, which is used as a criterion for judging car oscillation, is stored in advance as a table or a relational expression in which an elevator specification is used as a parameter, and the set value is selected automatically by using the information of the elevator specification, by which the time and the labor for setting are eliminated. Further, since the set value is a value suitable for that elevator, variations in detection can be restrained, and hence the reliability is high.

Car oscillation detecting device for elevator using a set value to judge car oscillation

In an elevator apparatus, a car is mounted with an safety device for bringing the car to an emergency stop. A drive unit for raising and lowering the car is controlled by a drive control portion. A safety control portion detects an abnormality in the elevator and outputs an actuation signal. An electrical actuator portion actuates the safety device in response to an actuation signal output from the safety control portion. A mechanical actuator portion mechanically detects an abnormality in the elevator, and actuates the safety device through mechanical transmission of a control force. In the event of power failure, a backup power source enables functioning of at least the drive unit and of the drive control portion.

Elevator apparatus including a safety control portion that detects an abnormality

Provided is a braking device for an elevator in which energy required for braking and releasing is reduced. The braking device includes a movable plunger (), braking mechanisms (-) which are connected to one end of the movable plunger and are switched between a braking state and a releasing state by an axial movement of the movable plunger, a first drive mechanism () using mechanical or magnetic force, for reversing the movable plunger in the middle of a movable range in an axial direction for the switching between the braking state and the releasing state to press and hold the movable plunger to the braking side or the releasing side, and a second drive mechanism () using an electromagnetic force, for driving the movable plunger to a reversion position in the middle of the movable range from the braking side or the releasing side against a pressing force of the first drive mechanism in order to switch between the braking state and the release state.

Brake device for elevator

In an elevator apparatus, a control device obtains car information including at least one of car position information and car speed information based on a main detection signal from a main sensor unit. An auxiliary sensor unit detects arrival of a car at a preset reference position with in a hoistway to generate an auxiliary detection signal. The control device makes corrections to the car information based on the auxiliary detection signal.

Elevator apparatus including main and auxiliary sensors

An elevator apparatus has a criterion (overspeed levels) that changes in accordance with an operational condition of a car. The elevator apparatus also has a position information correcting means that corrects an error in value that determines the criterion. In the elevator apparatus, the overspeed levels are determined using continuous information corresponding to car position, while the continuous information is corrected using intermittent information corresponding to actual car position. According to the elevator apparatus, on-the-spot adjustment or long-time maintenance becomes unnecessary, and overspeed detection levels can easily be changed in accordance with the operation conditions of the car.

Elevator apparatus with position correction for overspeed detection

An elevator vibration reducing device in which horizontal vibrations of a cage are detected by a vibration sensor. The cage is displaced horizontally by an actuator. A control portion for controlling the actuator has a computing portion for computing a vibration reduction control signal for reducing the horizontal vibrations of the cage based on a vibration detection signal generated by the vibration sensor. The control portion has a detection signal comparing portion for comparing a detection value obtained from the vibration detection signal with a previously set value, and stopping controlling of the actuator when the detection value becomes no less than the set value.

Active horizontal vibration reducing device for elevator

A guide device for an elevator in which a pair of corresponding actuators are controlled by controllers in accordance with information from acceleration sensors, and the force with which guide members are pressed against guide rails is adjusted. Each controller includes a current amplification device and diodes. The diodes selectively output signals from the current amplification device to the pair of actuators.

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Tokyo, Japan

Kenichi Okamoto