Elevator system with control to allocate a call based on charging status of energy storage, and method of controlling an elevator group
First Claim
1. An elevator system, comprising:
- an elevator group, which comprises at least two elevator cars, the elevator cars being fitted to be moved in the elevator hoistway, according to calls allocated by control of the elevator group;
a power supply arrangement, for adjusting power needed to move the elevator cars, to which power supply arrangement an energy storage is connected;
the energy storage being fitted in a first operating situation to yield energy for use in moving the elevator car and in a second operating situation to receive energy released by movement of the elevator car;
a determination of a charging status of the energy storage;
wherein the control of the elevator group is fitted to determine a 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
wherein 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, wherein the allocation criterion is determined according to the charging status of the energy storage.
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Abstract
An elevator system and a method are provided for controlling an elevator group. The elevator system includes an elevator group, which includes 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. The elevator system includes a power supply arrangement, for adjusting the power needed to move the elevator cars. An energy storage is connected to the power supply arrangement. The 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. The elevator system includes a determination of the charging status of the energy storage, and 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. 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.
39 Citations
20 Claims
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1. An elevator system, comprising:
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an elevator group, which comprises at least two elevator cars, the elevator cars being fitted to be moved in the elevator hoistway, according to calls allocated by control of the elevator group; a power supply arrangement, for adjusting power needed to move the elevator cars, to which power supply arrangement an energy storage is connected; the energy storage being fitted in a first operating situation to yield energy for use in moving the elevator car and in a second operating situation to receive energy released by movement of the elevator car; a determination of a charging status of the energy storage; wherein the control of the elevator group is fitted to determine a 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 wherein 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, wherein the allocation criterion is determined according to the charging status of the energy storage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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8. A method for allocating calls in an elevator system, said method comprising the steps of:
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connecting an energy storage to a power supply arrangement of the elevator system; determining a charging status of the energy storage; determining a allocation criterion according to the determined charging status of the energy storage; determining a change in energy that would be caused by movement according to an allocated call of the elevator cars belonging to the elevator group; and allocating 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, wherein the allocation criterion is determined according to the charging status of the energy storage. - View Dependent Claims (9, 10, 11)
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Specification