A simplified mathematical modeling and zone scheduling for multi-directional multi-car elevators

ThyssenKrupp Elevator has proposed a multi-directional multi-car elevator product, called MULTI. In this paper, we proposed a simplified mathematical model for multi-directional multi-car elevators. This model is based on Markon's S-ring, which is for single-car elevators. We developed a modeling tool based on the proposed model. In addition, we proposed zone scheduling for multi-directional multi-car elevators, and analyzed the proposed scheduling by applying them to the simulation.