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: There is provided a vehicle operating system constituted of a vehicle and at least a charging apparatus, the system comprising means for enabling high-precision unmanned positioning, despite primarily vertical displacements of the vehicle due to changes in tire pressure or weight of a passenger or passengers, and hence enabling efficient, stable power feeding. The charging apparatus includes a power feeding unit, and a vehicle includes a power receiving unit for feeding power in a noncontact manner, which makes possible recharging without manual assistance. A C-shaped transformer and an I-shaped transformer are used for the power feeding unit and the power receiving unit, respectively, so that a magnetic flux induced therebetween can develop substantially in the horizontal direction, thereby feeding power stably despite changes in tire pressure and the like.

Abstract: There is provided a vehicle operating system constituted of a vehicle and at least a charging apparatus, the system comprising means for enabling high-precision unmanned positioning, despite primarily vertical displacements of the vehicle due to changes in tire pressure or weight of a passenger or passengers, and hence enabling efficient, stable power feeding. The charging apparatus includes a power feeding unit, and a vehicle includes a power receiving unit for feeding power in a noncontact manner, which makes possible recharging without manual assistance. A C-shaped transformer and an I-shaped transformer are used for the power feeding unit and the power receiving unit, respectively, so that a magnetic flux induced therebetween can develop substantially in the horizontal direction, thereby feeding power stably despite changes in tire pressure and the like.

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 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: The number of electrical wires in the car is reduced by radio communications between the operation panel and terminal. Furthermore, reliability and dependability of communications are improved because the operation panel and terminal communicate with each other at a comparatively short distance.

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.

Abstract: The number of electrical wires in the car is reduced by radio communications between the operation panel and terminal. Furthermore, reliability and dependability of communications are improved because the operation panel and terminal communicate with each other at a comparatively short distance.

Abstract: In order to make it possible to transmit and receive information between terminals and to reduce the number of wires used for an elevator in a building in an elevator system by transmitting and receiving information through wireless transmission even if a very weak radio wave having a narrow communicable range is used, an elevator control unit, a car terminal and floor terminals are individually provided with short distance wireless transmitting/receiving units having a communicable range of nearly a 2-floor distance (5 to 6 m) using very weak radio waves. The radio waves are received and transmitted between the wireless transmitting/receiving units located within the communicable range to transmit information by a relaying method of sequentially transferring information from terminal to terminal until it reaches a final destination.

Abstract: The present invention provides an electric rotary machine including a rotor having a field magnet provided on a shaft, the field magnet comprising a first field magnet with 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 having a power feeding apparatus effective for reducing the installation space for the elevator is disclosed.

Abstract: An elevator capable of supplying electric power to accessory hall devices such as up/down elevator buttons and position indicators without requiring power supply lines between the cage and each hall. A drive battery which supplies electric power to hall devices provided in each hall and a receptor connected to the battery are provided on the hall. A feeder contactable with the respective receptors, a charging device that charges the battery via the feeder and receptor are provided on the top of the cage. When the charging voltage, for example, used in a hall of the floor drops below a predetermined voltage value, the cage stops automatically at the floor and the charger charges the drive battery in the hall of the floor via the receptors and feeder.

Abstract: An elevator system in which an elevator-car and a counter weight are suspended on a pulley system in a hoistway. The elevator system includes a receiving unit for receiving an electric power from a feeding unit provided in the hoistway, an inverter for converting the received electric power into ac power, a motor connected to an ac side of the inverter for driving the counter weight in up and down directions, a sensor for detecting a position of the receiving unit, and a control unit for controlling an inverter on the basis of the position detected by the position sensor. The counter weight carries the receiving means, the inverter, and the motor.

Abstract: An elevator capable of supplying electric power to accessory hall devices such as up/down elevator buttons and position indicators without requiring power supply lines between the cage and each hall. A drive battery which supplies electric power to hall devices provided in each hall and a receptor connected to the battery are provided on the hall. A feeder contactable with the respective receptors, a charging device that charges the battery via the feeder and receptor are provided on the top of the cage. When the charging voltage, for example, used in a hall of the floor drops below a predetermined voltage value, the cage stops automatically at the floor and the charger charges the drive battery in the hall of the floor via the receptors and feeder.

Abstract: A control system for determining a control function for a control device on the basis of a transfer function of an object to be controlled and for adjusting an operation quantity of an object to be controlled in accordance with the determined control operation function, wherein an control function of a first control device is determined so that a closed-loop transfer function of a control system including the object to be controlled and the first control device coincides with a predetermined first transfer function, an control function of a second control device is determined, in a closed loop control system including the control system and the first control device, so that a transfer function from a disturbance applied to the object to be controlled to a state variable of a point at which the disturbance is applied to the object to be controlled, and a sum signal indicative of a sum of outputs of the first and second control devices is used as an operation quantity of the object to be controlled.

Abstract: An elevator in which an elevator-car and a counter weight are hung like a draw well. The elevator includes a receiving unit for receiving an electric power from a feeding unit provided in a hoistway, an inverter for converting the received electric power into ac power, a motor connected to an ac side of the inverter, for driving the counter weight in up and down directions, a sensor for detecting a position of a receiving unit, and a control unit for controlling an inverter on the basis of the position detected by the position sensor. The counter weight has the receiving means, the inverter, and the motor.

Abstract: Elevator group supervisory control method and system for group supervisory control of a plurality of elevators serving a plurality of floors. The method and apparatus of the invention permits the inputting of qualitative requests (guidance), from the user, concerning elevator operation into the group supervisory control system. Qualitative requests concerning elevator operation are set in the form of guidance (or request) targets. The thus set request targets are converted into control targets for the elevators. Actual group supervisory control is executed using the control targets.

Abstract: The present invention relates to a group control elevator system which has been adjusted to operate in response to a state of utilizing elevator cars. In a group control elevator system which carries out a control of allocating elevator cars to elevator car calls for serving many floors by using an evaluation function having a plurality of variable parameters, targets for elevator control performance are inputted, a traffic flow to which elevator car demand belongs is judged, variable parameters to be adjusted which have been set in advance for each combination of said targets and traffic flows are stored, stored variable parameters are adjusted, adjustment sequence of variable parameters to be adjusted is stored, and a plurality of variable parameters are sequentially adjusted according to the stored sequence. By the above arrangement, only desired parameters to be adjusted are selected and adjusted out of a plurality of variable parameters for desired targets and traffic flows.

Abstract: An information transfer system in which an information transfer control arrangement including information transfer control and reference information storage is provided in a system having at least three subsystems communicating with each other using transfer information which contains an information unit common to all information handled by the subsystems. The information transfer control refers to information in the reference information storage, and rearranges the information arrangement from the transferer subsystem to an information arrangement suitable for the transferee subsystem, if necessary, followed by transferring it. The subsystem can be changed easily by adding, deleting or correcting the reference information in the reference information storage. The configuration of the transfer control system is therefore flexible.

Abstract: An elevator system which is provided with power converters, electric motors supplied with power from the power converters, and a torque distributing section having functions for determining allocation of output power from the power converters on the basis of a required torque, by which an elevator is operated on the basis of functions selected in accordance with the operation mode. The system is able to save power in the elevator operation and also improve control functions and increase system capacity.