Patent ID: 7108106

Claim:
A control device for controlling an elevator installation with a multiple deck car that simultaneously serves several floors of a building with one stop, the car having at least two car decks that are accessible at the same time at a main stopping point by way of different associated main stopping floors, the elevator installation further including a call registering device at the main stopping point by which a passenger can input a destination call representing his or her travel order for a desired destination floor, comprising: a conversion unit adapted to be connected to the call registering device, said conversion unit responding to a destination call input by a passenger at the main stopping point and to destination floor travel orders already allocated to and/or demanded of the multiple deck car to ascertain which car deck of the multiple deck car is to be allocated to the passenger at the main stopping point in order to minimize the number of stops to be made by the multiple deck car; and an indicating device connected to said conversion unit and being responsive to the ascertained car deck to indicate to the passenger at the main stopping point the main stopping floor associated with the allocated car deck.