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ELEVATOR SYSTEM AND METHOD OF CONTROLLING AN ELEVATOR GROUP

  • US 20110120811A1
  • Filed: 01/10/2011
  • Published: 05/26/2011
  • Est. Priority Date: 08/21/2008
  • Status: Active Grant
First Claim
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1. An elevator system, comprising:

  • an elevator group, which comprises at least two elevator cars, which elevator cars are fitted to be moved in the elevator hoistway, according to the calls allocated by the control of the elevator group;

    a power supply arrangement, for adjusting the power needed to move the elevator cars, to which power supply arrangement an energy storage is connected;

    which energy storage is fitted in the first operating situation to yield energy for use in moving the elevator car, and in the second operating situation to receive energy released by movement of the elevator car;

    a determination of the charging status of the energy storage;

    the control of the elevator group is fitted to determine the change in energy that would be caused by the movement according to an allocated call of the elevator cars belonging to the elevator group; and

    the control of the elevator group is fitted to allocate a call by favoring in the allocation an elevator car, the determined change in energy caused by the movement of which best meets the allocation criterion, which allocation criterion is determined according to the charging status of the energy storage.

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