Control system and control method for reassigning the cars of a double-deck elevator

A control method for a double-deck elevator system having an first deck and a second deck, wherein the control method receives a plurality of car calls from the decks and a plurality of hall calls from floors and assigns the decks to respond to the plurality of hall calls and car calls, the method comprising the steps of:

• determining whether a plurality of the car calls and the hall calls can be responded to simultaneously;
• and
• reassigning the decks when the control method determines that it is possible to respond to any of the plurality of the aforementioned car calls and boarding hall calls simultaneously wherein the first deck is assigned to respond to one of the plurality of car calls and boarding calls at a first floor and the second deck is assigned to respond to another one of the plurality of car calls and boarding hall calls at a second floor.