Development of Group Control for Multi-Car Elevator Systems based on a Detailed Model

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This study treated a group control problem for multi-car elevator systems where more than one car is installed in every elevator shaft. A collision and reversal avoidance method that dynamically optimizes the floors to be visited next by cars was constructed based on a realistic model of the system such that floor stoppage time of a car cannot be known in advance. Next, call allocation methods under immediate and delayed guidance policies were proposed that combine zoning and minimization of predicted passenger service time. Then, the validity of the collision and reversal avoidance method and the effectiveness of the proposed group control method were investigated and verified by computer simulation.