Abstract: The start timing of the pole position inference process of the linear motor installed vertically is delayed by a predetermined time after instruction of brake release. For example, from (1) increasing of the thrust instruction value of an ASR control system up to a predetermined value, (2) the movement (falling) distance of the moving part, or (3) the moving (falling) speed of the moving part, the release condition of the brake is detected and moreover after a predetermined time, the inference process of the pole position is started. The inference process of the pole position of a synchronous motor is fit to the release timing of a brake and a malfunction of the inference process and a runaway (falling in the vertical drive) of a moving part are prevented.

Abstract: The start timing of the pole position inference process of the linear motor installed vertically is delayed by a predetermined time after instruction of brake release. For example, from (1) increasing of the thrust instruction value of an ASR control system up to a predetermined value, (2) the movement (falling) distance of the moving part, or (3) the moving (falling) speed of the moving part, the release condition of the brake is detected and moreover after a predetermined time, the inference process of the pole position is started. The inference process of the pole position of a synchronous motor is fit to the release timing of a brake and a malfunction of the inference process and a runaway (falling in the vertical drive) of a moving part are prevented.

Abstract: An elevator group control system for controlling multiple elevators cars each of which serves a plurality of floors includes a route preparation section which, at a time of assigning a hall call to one of the elevator cars, calculates a future trajectory for each of the elevator cars. The future trajectory for each elevator is for a case in which the hall call is assigned to the elevator car. A selecting unit which determines a selected one of the elevator cars to which the hall call is to be assigned using the calculated future trajectories.

Abstract: An elevator group control system includes a reference route generating portion, which for each elevator, generates a reference route which the elevator should follow with respect to the time axis and position axis; and an assignment portion which selects an elevator for assignment to a generated hall call so as to make the actual trajectory of each elevator closer to its reference route. Reference routes which guide the cage's trajectory into temporally equal interval condition are generated, and car assignment is executed to allow the cages to settle in temporally equal interval condition over a long period of time.

Abstract: An elevator group control system includes a reference route generating portion, which for each elevator, generates a reference route which the elevator should follow with respect to the time axis and position axis; and an assignment portion which selects an elevator for assignment to a generated hall call so as to make the actual trajectory of each elevator closer to its reference route. Reference routes which guide the cage's trajectory into temporally equal interval condition are generated, and car assignment is executed to allow the cages to settle in temporally equal interval condition over a long period of time.

Abstract: An elevator group control system includes a reference route generating portion, which for each elevator, generates a reference route which the elevator should follow with respect to the time axis and position axis; and an assignment portion which selects an elevator for assignment to a generated hall call so as to make the actual trajectory of each elevator closer to its reference route. Reference routes which guide the cage's trajectory into temporally equal interval condition are generated, and car assignment is executed to allow the cages to settle in temporally equal interval condition over a long period of time.

Abstract: An elevator group control system is provided which stably keeps cage's position in temporally equal interval condition over a long period of time. The present invention provides a system comprising: reference route generating means, which for each elevator, generates a reference route which the elevator should follow with respect to the time axis and position axis; and assignment means which selects an elevator for assignment to a generated hall call so as to make the actual trajectory of each elevator closer to its reference route. Since reference routes which guides the cage's trajectory into temporally equal interval condition are generated and car assignment is executed so as to make the respective cages follow their reference routes, it is possible to allow the cages to settle in temporally equal interval condition over a long period of time.

Abstract: In order to control the position of a mobile body without using a position detector, a magnetic pole position of a rotor of a synchronous motor is estimated based on electrical quantities in relation to electric power supplied to the synchronous motor and then the mobile body position is estimated based on the estimated magnetic pole position.

Abstract: An elevator in which the sheave diameter is reduced and the attendant lowering of the rope life and strength is suppressed to secure safety and reliability. To this end, a rope is used in which a plurality of element wires constituting the wire rope are each covered with resin material and the whole wire rope is covered with resin material, thereby reducing the wear due to slippage between the element wires and the wear due to contact with the sheave, which wear occurs when the rope is entrained around the sheave. When the elevator sheave diameter is reduced, a worried lowering of the rope life can be suppressed or the rope life can be improved. Thus, it is possible to achieve reduction of size and weight of equipment including motors and hoists, installation space saving for elevators, improved safety and reliability of the system by virtue of the increased rope life.

Abstract: An elevator system in which a car travels upward and downward among a plurality of floors. The elevator system includes a first terminal having a wireless transmitting/receiving unit provided for at least one of the plurality of floors and a second terminal having a wireless transmitting/receiving unit associated with the car. A mobile terminal is provided which enables wireless transmitting/receiving of signals between at least the first and second terminals.

Abstract: An elevator group control system is provided which stably keeps cage's position in temporally equal interval condition over a long period of time. The present invention provides a system comprising: reference route generating means, which for each elevator, generates a reference route which the elevator should follow with respect to the time axis and position axis; and assignment means which selects an elevator for assignment to a generated hall call so as to make the actual trajectory of each elevator closer to its reference route. Since reference routes which guides the cage's trajectory into temporally equal interval condition are generated and car assignment is executed so as to make the respective cages follow their reference routes, it is possible to allow the cages to settle in temporally equal interval condition over a long period of time.

Abstract: An elevator having a power feeding apparatus effective for reducing the installation space for the elevator is disclosed. The dimension of the power transmission part disposed at the hoist way and the dimension of the power receiving part mounted on the counter weight, each measured in the direction along which the counter weight moves are made different from each other.

Abstract: An elevator system in which a car travels upward and downward among a plurality of floors. The elevator system includes a first terminal having a wireless transmitting/receiving unit provided for at least one of the plurality of floors and a second terminal having a wireless transmitting/receiving unit associated with the car. A mobile terminal is provided which enables wireless transmitting/receiving of signals between at least the first and second terminals.

Abstract: The start timing of the pole position inference process of the linear motor installed vertically is delayed by a predetermined time after instruction of brake release. For example, from (1) increasing of the thrust instruction value of an ASR control system up to a predetermined value, (2) the movement (falling) distance of the moving part, or (3) the moving (falling) speed of the moving part, the release condition of the brake is detected and moreover after a predetermined time, the inference process of the pole position is started. The inference process of the pole position of a synchronous motor is fit to the release timing of a brake and a malfunction of the inference process and a runaway (falling in the vertical drive) of a moving part are prevented.

Abstract: An elevator system in which a car travels upward and downward among a plurality of floors. The elevator system includes terminals each having a wireless transmitting/receiving unit. One of the terminals is correspondingly provided for at least one of the plurality of floors and another of the terminals is correspondingly provided for the car and at least one of a counterweight. A mobile terminal is provided which enables wireless transmitting/receiving of signals between the terminals which are arranged within a predetermined distance of each other.

Abstract: The present invention provides an electric rotary machine including a rotor having a field magnet provided on a shaft, the field magnet having magnetic poles of sequentially different polarities arranged in a rotational direction, a second field magnet with magnetic poles of sequentially different polarities arranged in a rotational direction wherein the second field magnet is rotatable on the shaft and displaced axially with respect to the first field magnet.

Abstract: An elevator is capable of transmitting signals between an elevator control unit and a car control unit without using tail cords. Resin-coated ropes for suspending an elevator car and a counterweight comprise conductive metal wires. Transmitter-receivers use the conductive metal wires of the ropes for contactless signal transmission. The conductive metal wires of the two ropes are connected in rope-anchoring parts to form an electrical closed loop for signal transmission.

Abstract: An elevator system in which a car travels upward and downward among a plurality of floors. The elevator system includes terminals each having a wireless transmitting/receiving unit. One of the terminals is correspondingly provided for at least one of the plurality of floors and another of the terminals is correspondingly provided for the car and at least one of a counterweight. A mobile terminal is provided which enables wireless transmitting/receiving of signals between the terminals which are arranged within a predetermined distance of each other.

Abstract: An elevator system in which a car travels upward and downward among a plurality of floors includes an elevator control unit and terminals each having a wireless transmitting/receiving unit. The terminals are provided for the elevator control unit and for each of the floors. Transmitting/receiving of signals between two of the terminals distant from each other is effected so as to at least enable wireless bi-directional communication between the two of the terminals distant from each other by relaying signals through another wireless transmitting/receiving unit of another of the terminals.

Abstract: In order to supply an AC motor control apparatus which identifies the type of motor automatically, the AC motor control apparatus has a motor type identification means by which the type of motor connected to the motor control apparatus is identified by issuing the appropriate voltage command for motor type identification and judging from the detected current whether the motor rotor is equipped with a magnet and has magnetic salience. The AC motor control apparatus has a control scheme selection means which selects the appropriate control scheme according to the above-identified type of motor and controls the driving of the motor.