Provided herein is a door opening and closing apparatus capable of reducing torque of a motor required for removing an adhesive force between a door and a housing. The door opening and closing apparatus includes a motor configured to output power for opening and closing a door, a power transmission apparatus configured to transmit the power of the motor to a hinge by rotation of a plurality of driving gears, and an auxiliary apparatus configured to generate an auxiliary force for moving the door at a closing position toward an opening position, where the auxiliary force is generated at the auxiliary apparatus by the power of the motor before the power of the motor is transmitted to the hinge through the power transmission apparatus.

A vehicle includes a body and a door that is movably mounted to the body. The door has a powered latch and an electrically-powered actuator that extends and retracts a plunger from an inner side of the door. A controller unlatches the powered latch and actuates the electrically-powered actuator such that the plunger contacts the body and pushes the door open. The controller then controls the electrically-powered actuator to retract the plunger while the door is open.

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.

A vehicular closure system includes a cover panel disposed at a charge port of a vehicle and movable between a closed position, where the cover panel conceals the charge port, and an opened position. An actuator is operable to move the cover panel between the closed and opened positions. A motor of the actuator rotates an output gear about an axis of rotation. An output element is connected to the cover panel and rotates about the axis of rotation as the cover panel moves. When the motor of the actuator is operated to move the cover panel, the output element rotates in tandem with the output gear. When the cover panel is manually moved, the output element rotates about the axis of rotation relative to the output gear.

A vehicular opening/closing body control device includes a braking controller configured to apply a braking force to an opening/closing body, a full-closing detection unit configured to detect that the opening/closing body is in a fully-closed state, and a failure detection unit configured to detect failure of a latch mechanism provided on the opening/closing body. The latch mechanism is provided with a pawl switch, which is switched between ON and OFF states in conjunction with operation of a pawl. The failure detection unit detects, based on the ON and OFF states of the pawl switch, occurrence of an engagement failure in which the latch mechanism fails to hold the opening/closing body in the fully-closed state. The braking controller executes braking control for applying the braking force to the opening/closing body when the engagement failure is detected in the latch.

A vehicular opening/closing body control device includes: a braking control unit configured to apply a braking force to an opening/closing body provided in an opening in a vehicle; a traveling state determination unit configured to determine a traveling state of the vehicle; an abnormality detection unit configured to detect occurrence of a full-closing abnormality in which the opening/closing body is not held in a fully-closed state during the traveling of the vehicle; and a record holding unit configured to hold a detection record of the full-closing abnormality, wherein the braking control unit executes braking control through detection of the full-closing abnormality of the opening/closing body, and in a case where the detection record of the full-closing abnormality is held after the vehicle stops, executes the braking control of the opening/closing body based on the detection record of the full-closing abnormality before the vehicle travels.

In a method for the commissioning of a door or window closer which comprises an energy accumulator, a damping device with an electric motor being operable as a generator and a transmission element, the leaf is opened and/or closed at least once in a teach-in process, the angular position of the motor shaft is detected during opening and/or closing, a functional relationship is determined between the angular position of the motor shaft and an angular position of the rotatable leaf at least over an area of the opening width of the leaf and the functional connection is automatically taken as a basis for a subsequent actuation of the electric motor for the damping of the closing movement of the leaf.

A drive device for a leaf of a door, of a window or the like comprises a drive with a mechanical store which is charged by an opening movement of the leaf and is discharged with a closing movement of the leaf, at least one electric motor which is in operative connection with the leaf by means of at least one motor shaft and is operable as a generator for damping the leaf movements, and with open- and/or closed-loop control electronics for actuating the electric motor. The drive device also comprises a sensor system for monitoring at least one hazard zone in the region of the leaf. The electric motor is actuatable by means of the open- and/or closed-loop control electronics as a function of the output signals of the sensor system to make safe the hazard zone.

A method and a device for closing a door on a door opening of a vehicle are provided. The closing device includes a seal formed between the door and the door opening for separating an interior space and an exterior space from each other when the door is in a closed position. The device also includes a door drive for moving the door and a controller coupled to the door drive for controlling movement of the door based on an operating request of a user. The controller includes a condition monitoring unit configured to determine and use at least one variable state variable chosen from the group consisting of the device, the door, the door opening, and the installation environment of the door. The controller is configured to generate a value of at least one closing parameter for closing the door depending on the at least one variable state variable.

A method of accessing a cargo in a trailer. The method includes steps of engaging the trailer to a vehicle, wherein the trailer comprises at least one trailer door assembly operably engaged with at least one driving assembly; unlocking a trailer door of the at least one trailer door assembly via at least one locking assembly; actuating the trailer door, via a rotary actuator, from a closed position to an opened position; pivoting the trailer door, via an expansion assembly of the at least one driving assembly, from the closed position to the opened position; and providing access to the cargo inside of the trailer.