A door closer may utilize a door closing device (e.g., spring) and a force adjustment device (e.g., a motor) in order to allow for manual door opening and assisted door closing. During operation, as a door is manually opened, the spring is loaded (e.g., compressed or tensioned) above its pre-loaded closed position state. Once manual opening is completed, the spring that is loaded during opening begins returning to the pre-loaded closed position state, and thus, moves the door automatically towards the closed position. Depending on the pre-loaded spring setting, the closing force of the door may not be enough to close the door, or to close the door with the preferred force. As such, during closing a controller may engage a motor not to drive the door directly, but to increase the pre-load of spring to increase the closing force in order to allow the door to close as preferred.

A door system includes a controller for controlling the door system. A user computer system transmits information to the controller over a wireless connection to modify operating parameters for controlling the operation of the door system. During installation of the door system sensors may be utilized to determine if the door system has been installed properly. The sensors may be used to identify if the door system is mounted level and plum, and to review the movement, vibration, speed, acceleration, force, or the like of the sensors, and thus, the components to which the sensors are operatively coupled in order to make adjustments to the door assembly. Furthermore, the operating parameters of the installed door system, may be cloned and provided to other door systems in order to quickly clone and distribute the operating parameters of one or more door systems to one or more other door systems.

A drive device for adjusting a vehicle assembly including an electromotive adjustment drive for adjusting the vehicle assembly and a control device for controlling the adjustment drive, the control device is configured to actuate the adjustment drive in a holding mode for holding the vehicle assembly. It is provided that the control device includes a regulation module for regulating a characteristic variable of the adjustment drive and a control module, wherein the regulation module is configured to determine a correcting variable for regulating the characteristic variable of the adjustment drive in the holding mode with reference to a specified setpoint value, and the control module is configured to evaluate a change of the correcting variable to detect an adjustment request for adjusting the vehicle assembly.

A drive device for adjusting a vehicle assembly including an electromotive adjustment drive to adjust the vehicle assembly and a control device for controlling the adjustment drive, the control device configured to actuate the adjustment drive in an automatic mode, for adjusting the vehicle assembly with a predetermined rotational speed, and in a servo mode for providing a supporting force during a manual adjustment of the vehicle assembly by a user. The control device includes a speed regulation module for determining a first setpoint current value in dependence on a rotational speed of the adjustment drive, a servo regulation module for determining a second setpoint current value in dependence on a load acting on the vehicle assembly and a current regulation module for regulating a current of the adjustment drive.

An actuator for a side door of a motor vehicle is described. The actuator brings about automatic opening or closing of the side door depending on a signal. The actuator has an electric motor which, depending on an activation, generates a torque which acts on a hinge of the side door via a transmission. Furthermore, it has a device for holding the side door in any open position, which holding device is realized by a function of the electric motor itself which is designed in such a way that, in the currentless state, it has an increased cogging torque which is configured to a value required as a holding torque for holding the door open. In this way, the actuator is distinguished by a simple and inexpensive design.

An egress entrance system (1) comprising a swing door member (10) having a door leaf (12), an initiate device (13) for initiating a panic opening, and an automatic door operator (30) is provided. The automatic door operator (30) has a motor (34) capable of causing movement of the door member (10), a controller (31) for controlling operation of the motor (34), and the automatic door operator (30) being operable in a testing mode (60) and an operational mode, wherein the controller (31) is configured, in the testing mode (60), to automatically determine at least one test parameter; and causing an action in response to the determined test parameter.

An opening-closing body controller includes a motor body that opens and closes an open-close body, a control unit that controls and drives the motor body, and an inner temperature detector that detects an inner temperature of the motor body. The control unit performs an entrapment detection process in a section excluding a mask section that is set from a fully closed position of the open-close body to a preset position in an opening direction of the open-close body. The control unit corrects the mask section in accordance with the inner temperature of the motor body detected by the inner temperature detector.

The invention is systems and methods of operating a window with an automated window mechanism. The systems and methods include moving with the automated window mechanism a sliding panel of a window relative to a window frame to open or close the window. The sliding panel moves through a proximate closing zone. The method also includes in the proximate closing zone, operating the automated window mechanism in a limited state comprising at least one of reduced velocity, reduced current to the automated window mechanism, or reduced voltage to the automated window mechanism.

A refrigerator and a controlling method thereof are provided. The refrigerator includes a main body including first and second doors, a first motor for opening the first door and a second motor for opening the second door, and a processor configured to, based on a user command for opening the door being obtained, start driving the first motor to open the first door, and after a first time from the time when the first motor has started being driven, start driving the second motor to open the second door.

A method for state-based maintenance of an access device of a vehicle, in particular of a public transport vehicle, wherein the access device includes a moveable element and an electric drive for moving the moveable element and is attached to the vehicle. The drive is controlled with control signals, wherein actual state signals for describing the state are generated based on a detected state of the access device. The control signals are applied to a physical simulation model for computationally simulating the access device and determining expected target state signals and wherein based on a comparison between the actual state signals and associated target state signals, a maintenance state of the access device is determined. The simulation model is adjusted based on the comparison between the actual state signals and the associated target state signals.