Disclosed is a method of operating an elevator system having a plurality of elevator cars that are simultaneously and individually moveable in an elevator shaft between a plurality of floors. A predetermined travel route is assigned to an elevator car or a plurality of elevator cars. This travel route is defined by a sequence of stopping points that is fixed in advance for the respective elevator car and at which stopping points the respective elevator car is intended to make a planned stop. The elevator cars to which a travel route is assigned are then moved in accordance with the travel route assigned to the respective elevator car. Further disclosed is an elevator controller and to an elevator system for carrying out such a method.

The present disclosure relates to a lift system including at least one lift shaft and a plurality of lift cars which can be individually moved. A plurality of the lift cars can be moved in the same lift shaft. The lift system further includes a control system for controlling the lift system. The lift cars of the lift system each have a unique identifier, for example an RFID transponder or a QR code. The disclosure further relates to a method for operating a lift system of this kind.

The present disclosure relates to elevator technology. In particular, the present disclosure relates to an elevator system using a novel powering scheme. Further in particular, the present disclosure relates to an elevator system using a pressurised gas to power at least a part of the elevator system. Accordingly, there is provided an elevator system (200), comprising an elevator car (112) and an elevator drive (224) adapted to move the elevator car in an elevator shaft (302), wherein the elevator system further comprises a gas reservoir (204,a,b), wherein the gas reservoir is adapted for storing of a pressurized gas, wherein the gas reservoir is connected to an element of the elevator system for powering at least a part of the elevator system, and wherein the element is at least one element of a pneumatic elevator drive (224) and a generator (238). Further, there is provided a method of operating the elevator system and for modernizing an elevator system.

An elevator system includes a plurality of elevator cars, an elevator controller communicatively coupled to the plurality of elevator cars. The elevator controller is configured to generate a signal to a first elevator car for indicating an elevator call to the first elevator car. The first elevator car is configured to, in response to a receipt of the signal, initiate a communication with at least one second elevator car for receiving information relating to a status of the at least one second elevator car, and in response to a receipt of the information, generate a control signal with respect to serving the elevator call received by the first elevator car. A method for controlling an elevator car in the elevator system is also disclosed.

An elevator system includes at least one elevator car, and an elevator drive system configured to drive the elevator car in a first direction and a second opposing direction based on at least one drive command signal. The elevator system further includes an electronic elevator control module that determines a first servicing route and a second servicing route. The first servicing route services a first floor located along the first direction in response to at least one first call request. The second servicing route overrides the first servicing route so as to dynamically service at least one second floor located along the second direction based on a comparison between at least one parameter of the at least one elevator car and at least one interrupt criteria.

A method of operating an elevator system for a learn run sequence including the steps of moving, using a linear propulsion system, an elevator car through a lane of an elevator shaft at a selected velocity; detecting, using a sensor system, the location of the elevator car when it moves through the lane; controlling, using a control system, the elevator car, the control system being in operable communication with the elevator car, the linear propulsion system, and the sensor system; and determining, using the control system, a location of each of the car state sensors relative to each other within the lane in response to at least one of a travel time of the elevator car, a velocity of the elevator car, a position of the elevator car, and a height of the elevator car.

A method for operating an elevator system, which may include at least two cars that can move independently of one another within a common elevator shaft, may involve determining with an elevator controller to cause a first car of the at least two cars to perform a transportation process from a start stopping point to a destination stopping point. The elevator controller may determine a starting time and travel parameters according to which the first car carries out the transportation process from the start stopping point to the destination stopping point. The starting time and the travel parameters may be determined by taking into account state parameters of a second car of the at least two cars.

A method for operating a multi-car elevator system having a shaft system with at least one lift shaft, a plurality of elevator cars that can be moved individually in the shaft system, and a control system. Data about the cars is provided at time intervals. When the provision of data relating to a first car fails, a shaft position of said first car is determined. A quarantine section of the shaft system is determined, in which the first car is located by means of the determined shaft position, and the determined quarantine section is blocked for the other cars of the system. The invention further relates to a multi-car elevator system configured for the implementation of such a method.

A lift system for moving a car along a track in a guided manner. The lift system having a guide rail system, a car and a drive unit arranged on the car. The guide rail system forms a closed track along which the car can be moved between floors when in operation. The drive unit has a motor, a gear wheel system connected to the motor by a shaft and a guide disk. The guide rail system has a pinion system and guide edges spaced apart from one another, which cooperate with the guide disk. When in operation, the motor drives the gear wheel system and the gear wheel system acts on the pinion system in order to move the car along the track in a guided manner.

A method for operating an elevator installation may be used with elevator installations that have at least two cars in one elevator shaft. A first car may be travelling or configured to travel in a direction of a second car, and the first car may be moved with reference to a travel curve in such a way that a distance between the first car and the second car can be controlled to an adjustable minimum distance. The adjustable minimum distance may be set as a function of a speed of at least one of the first car or the second car. Further, the distance between the first car and the second car can be controlled to the adjustable minimum distance with continuous calculation of a virtual stopping point for the first car, at which virtual stopping point the first car is stoppable with a safety clearance from the second car.