dormakaba Deutschland GmbH

A method for determining at least one property of a rotational movement of a three-phase rotary current machine in generator operation, with an electrical parameter for a phase voltage of the relevant phase of the three-phase alternating voltage of the rotary current machine generated in generator operation being continuously recorded metrologically for each of the three phases. Three electrical parameter pairs are formed from the three electrical parameters, whereby the three electrical parameter pairs respectively include electrical parameters of a first and a second phase, electrical parameters of the second phase and a third phase, and electrical parameters of the third phase and the first phase. A sign of a difference between the electrical parameters of each parameter pair is continuously determined. The property of the rotational movement is determined from change times corresponding to times of immediately successive sign changes of the differences between the three parameter pairs.

A monitoring device for a door functional unit, in particular a door closer, door drive, door lock or door hold-open system, including a sensor unit, designed for arrangement in the door functional unit, having a first magnetic sensor and an associated encoder, with the sensor unit being designed and configured to detect a position of a moving functional element of the door functional unit, and at least one second magnetic sensor which is designed and configured to detect an external magnetic field to monitor the operation of the first magnetic sensor.

A drive device for pivoting a leaf, in particular a door leaf or window leaf, about a leaf axis, the drive device having a motor-transmission module, the motor-transmission module including an electric machine having a machine axis as well as a transmission having an output shaft that is mounted to be rotatable about an output axis. The electric machine is at least partially, in particular entirely, arranged in a mounting space between the leaf axis and the output axis.

A method for operating a door actuator of a door system, having at least one movable door leaf and a control device, which is designed to control the drive of the door leaf, and having a sensor unit, which is designed to detect at least one person in a region before the door system, and transmits information about the person to the control device, includes at least the following steps; a) detecting a person approaching the door system laterally, b) identifying a parameter set (P) having the distance (A) changing in time, the approach angle (□) and/or the speed (S) of the person relative to the door system, c) determining the desire to enter of the person approaching laterally on the basis of a comparison of the currently identified parameters with stored parameters and d) opening the door leaf only in the case of the determined desire to enter.

A method for operating a door actuator of a pivot leaf door, having a pivotable door leaf, includes at least the following steps: performing a pivot movement of the door leaf; and identifying an interaction between the door leaf and a person and determining a correction value for the pivot movement of the door leaf based on the interaction and correcting future pivot movements of the door leaf by the correction value. A door actuator of a door system is configured to carry out the method.