Method and device for controlling a closing movement of a door of an elevator car in the event of a power failure, method for retrofitting a door of an elevator car, door for an elevator car, and elevator system
AssigneeInventio AG
InventorHansueli Stocker
Life of this patent
Estimating the term…
Abstract
A method for controlling a closing movement of a door of an elevator car in the event of a power failure uses the door drive and an electrical energy store. During normal operation of the door by the door drive, electrical energy is buffered in the energy store. In response to a power failure when the door is open, a closing mechanism begins to close the door and the stored electrical energy is provided as backup energy to the door drive by a control device to decelerate the closing movement.
Claims14
A method for controlling a closing movement of a door of an elevator car in response to a power failure of a door drive acting on the door, the method comprising steps of:
- buffering electrical energy during a normal operation of the door by the door drive;
- in response to a power failure of the door drive, providing the buffered energy as backup energy to a door control device to operate the door drive and brake a closing movement of the door;
- and
- providing the backup energy intermittently to the door control device.
A closing control device for controlling a closing movement of a door of an elevator car in response to a power failure of a door drive acting on the door, the closing control device comprising:
- an energy store buffering electrical energy during a normal operation of the door by the door drive;
- control electronics that respond to a power failure of the door drive by providing the buffered energy from the energy store as backup energy to a door control device to operate the door drive and brake a closing movement of the door;
- and
- wherein the control electronics provide the backup energy intermittently to the door control device.
Dependencies are inferred from the claim text.