Abstract: The disclosure relates to a drive assembly of a closure element assembly of a motor vehicle, wherein the drive assembly comprises a drive motor and, connected to the drive motor, a feed gearing for generating linear drive movements along a geometrical drive axis, wherein the drive motor and the feed gearing are arranged in a drive train of the drive assembly and the drive train extends between two mechanical drive connections for putting out drive movements and wherein the drive assembly comprises a brake for braking at least a portion of the drive train. It is proposed that the brake is designed such that the braking action of the brake is reduced with an increasing load in the drive train.

Abstract: A spindle drive for a closure element of a vehicle for generating drive movements along a geometric spindle axis, wherein a tube-like drive housing and a spindle unit with a spindle guide bush and a spindle movably mounted therein are provided, a first drive connection and a second drive connection which is linearly displaceable with respect to the latter being provided to generate the drive movements, a spindle guide tube being connected to the first drive connection and, together with the first drive connection, forming a first drivetrain component which is connected to the spindle guide bush of the spindle unit, and a connecting element being connected to the second drive connection and forming a second drivetrain component which is connected to the spindle. The spindle can be mounted in the spindle guide bush in such a way that it is purely linearly movable in the spindle guide bush.

Abstract: The disclosure relates to a linear unit for a flap arrangement with a flap, and a closed position, wherein the linear unit has two drive connections which are coupled to each other via a gearing and are adjustable relative to each other along a geometrical linear axis, wherein the linear unit has a helical spring arrangement, wherein the helical spring arrangement has a first spring element which is configured as a helical spring and a second spring element which is configured as a helical spring, with which helical springs the two drive connections can be pretensioned against each other, wherein the second spring element is oriented coaxially with respect to the first spring element with regard to a geometrical spring axis. It is proposed that the spring wire at one end of the second spring element forms a supporting portion via which the first spring element secures the second spring element axially.

Abstract: The disclosure relates to a drive assembly of a closure element assembly of a motor vehicle, wherein the drive assembly comprises a drive motor and, connected to the drive motor, a feed gearing for generating linear drive movements along a geometrical drive axis, wherein the drive motor and the feed gearing are arranged in a drive train of the drive assembly and the drive train extends between two mechanical drive connections for putting out drive movements and wherein the drive assembly comprises a brake for braking at least a portion of the drive train. It is proposed that the brake is designed such that the braking action of the brake is reduced with an increasing load in the drive train.

Abstract: The disclosure relates to a drive arrangement of a flap arrangement of a vehicle, wherein the flap arrangement has a flap which can be displaced between an open position and a closed position, wherein the drive arrangement has two mechanical drive connections for the technical drive connection of the drive arrangement and a helical spring arrangement for producing a total resilient force between the two drive connections. It is proposed that the helical spring arrangement have at least one integral helical spring element, in particular a helical compression spring element, having a helical spring axis, that a displacement, in particular a closure displacement, of the flap be associated with a deflection of the helical spring element and that, in order to produce the curve progression of the total resilient force which has different curve gradients, the helical spring element has a progressive resilient behavior at least over a deflection portion.

Abstract: A braking device for braking a movement of a first vehicle part and a second vehicle part with respect to each other includes a housing element having an inner bore and a piston element having a shaft extending in the inner bore along a longitudinal axis and being mounted on the housing element such that the shaft is displaceable along the longitudinal axis with respect to the housing element along a displacement path. A braking element is arranged within the inner bore of the housing element and constituted to provide a friction force for braking a displacement movement of the piston element and the housing element with respect to each other at least within a portion of the displacement path. A tensioning device is constituted to radially, with respect to the longitudinal axis, act onto the braking element to provide a radial tensioning force.

Abstract: A braking device for braking a movement of a first vehicle part and a second vehicle part with respect to each other comprises a housing element having an inner bore and a piston element having a shaft extending in the inner bore along a longitudinal axis and being mounted on the housing element such that the shaft is displaceable along the longitudinal axis with respect to the housing element along a displacement path. A braking element is arranged within the inner bore of the housing element and constituted to provide a friction force for braking a displacement movement of the piston element and the housing element with respect to each other at least within a portion of the displacement path. A tensioning device is constituted to radially, with respect to the longitudinal axis, act onto the braking element to provide a radial tensioning force.