A method of operating an elevator system is provided. The method includes powering, using a battery, the elevator system when an external power source is unavailable. The method also includes controlling, using a controller, a plurality of components of the elevator system. The controlling comprises operating at least one of the battery, an elevator car, a drive unit, and a brake. The method further includes determining, using the controller, a run profile of the elevator car in response to a selected deceleration. The method yet further includes operating, using the controller, the elevator car in response to the run profile determined, and determining, using the controller, an actual velocity of the elevator car.

According to one embodiment, a method of operating an elevator system is provided. The method includes detecting, using a controller, when an external power source is unavailable. The method also includes controlling, using the controller, a plurality of components of the elevator system. The controlling comprises operating at least one of an elevator car, a drive unit, an inverter and a brake. The method further includes detecting, using the controller, an original direction of travel of the elevator car. The method yet further includes detecting, using the controller, a mode of the elevator car, wherein the mode includes at least one of a motoring mode, a near balance mode, and a regenerative mode. The method includes determining, using the controller, a target floor. The method also includes adjusting, using the controller, a velocity of the elevator car to reach the target floor in response to the mode detected.

An elevator system may include a plurality of cars that are disposed vertically one above another in a common shaft. The plurality of cars may be independently movable. Further, the plurality of cars may include evacuation devices that permit the passage of passengers from a car to be evacuated into an adjacent car that is disposed vertically above or below the car to be evacuated. In some cases, an evacuation device of an uppermost car of the plurality of cars includes an opening floor hatch, and an evacuation device of a lowermost car of the plurality of cars includes an opening roof hatch.

An illustrative example embodiment of an elevator system includes a cab configured to accommodate at least one passenger or item inside the cab. A motorized module includes a base, a connector supported on the base and at least one drive member supported on the base. The connector is configured to selectively establish a releasable connection between the motorized module and the cab. The drive member is configured to engage a vertical surface, climb along the vertical surface to selectively cause vertical movement of the base, and selectively prevent movement of the base when the drive member remains in a selected position relative to the vertical surface. At least one motor is associated with the drive member to selectively cause the drive member to climb along the vertical surface. The motorized module is vertically movable independent of the cab when the motorized module is released from the cab.

An emergency movement device for a lift has a mounting body attached to the lift and a pivoting body pivotally attached to the mounting body. A gear box with an output drive shaft for engaging a main drive of the lift is provided. The output drive shaft is movable in conjunction with the pivoting body. The pivoting body is movable between an engaging position in which the output drive shaft engages the main drive to allow for rotation of the main drive of the lift and a non-engaging position in which the output drive shaft is disconnected from the main drive. An input shaft is provided and has a first end and a second end. The first end is connected to the gear box to allow rotation of the input shaft which causes rotation of the output drive shaft. An input shaft support is positioned on the lift for providing support to the input shaft so that the input shaft is supported in a substantially horizontal orientation. A biasing spring is provided in communication with the pivoting body for biasing the pivoting body and the output drive shaft in the non-engaging position.

A brake assembly for an elevator includes a brake, a brake operating device and a first brake wire connected to the brake operating device and to the brake, the brake operating device being configured to release the brake by moving the brake operating device and the first brake wire to a first direction. A second brake wire is connected to the brake operating device and to the brake, and the brake operating device is configured to engage the brake by moving the brake operating device and the second brake wire to a second direction.

A method for determining a speed of an electric motor of an elevator comprising a plurality of phases for supplying electric current to the electric motor. The method comprises forming an effective short-circuit between at least two of the plurality of phases of the electric motor, determining a short-circuit current, the short-circuit current being the current flowing in the effective short-circuit, and determining the speed of the electric motor based on at least one characteristic of the short-circuit current.

An elevator includes first and second elevator units vertically movable in a hoistway and interconnected by at least one belt-shaped hoisting rope. Each of the belt-shaped hoisting ropes is moved and passes around a drive wheel and includes consecutively a first rope section extending between the drive wheel and the first elevator unit, and a second rope section extending between the drive wheel and the second elevator unit. The elevator further includes non-driven cambered diverting wheels, each said first and second rope section being arranged to pass around and rest against a cambered circumferential surface area thereof. A monitoring arrangement monitors displacement of the first and second rope sections of the wheels in the axial direction. When one or more of the first and second rope sections is displaced in the axial direction of the wheels away from a predefined zone, rotation of the drive wheel is stopped.

A method for aiding or managing a rescue operation in an elevator system includes at least one elevator having a car driving in an elevator runway having several floors, and an elevator control which gathers data of components of the elevator system and issues a failure signal in any case of failure situation in the elevator system leading to a stop of the car between the floors. In the method it is checked based on first sensor data, whether a person is trapped in the car, and based on the first data or manually a rescue managing process is started, using a rescue managing circuit connected to the elevator control. The rescue managing process includes a pre-rescue process in which following data is read from sensors and/or components of the elevator system: car position data, status data of the elevator system and of the elevator components, functional data of the elevator system and/or of the elevator components, which functional data is obtained from the elevator control and/or from sensors connected to the elevator system. From these data presentation data are generated and displayed on a display connected to the rescue managing circuit and/or to the elevator control in preparation of a manual or automatic rescue drive.

A drive control method and system for controlling an inverter during power disruptions in the operation of an elevator drive includes the steps of predetermining whether a hoist motor of the elevator drive will be operating in a motor mode, a balanced mode or a regenerative mode on commencement of the power disruption, and controlling the inverter in accordance with the predetermined operating mode after commencement of the power disruption.