Abstract: A flexible spring element is made of a fibre-reinforced plastics composite material, a functional layer made of a fibre-reinforced plastics composite material being located on each of two mutually opposite sides of a central plane of the flexible spring element. At least one matrix material discharge layer extending parallel to the two functional layers and in a longitudinal direction is arranged in at least one longitudinal portion and has at least a fraction of discharge layer fibres which are oriented differently from the longitudinal direction of the flexible spring element. Within at least one curved portion of the flexible spring element a first volume fraction of flexible spring fibres in the functional layers is smaller, preferably smaller by several % than a second volume fraction of flexible spring fibres in the functional layers within the at least one longitudinal portion.

Abstract: A leaf spring device for a vehicle, comprising a leaf spring apparatus made of a fiber composite plastic, a first bearing point provided at a first end section of the leaf spring apparatus for supporting the leaf spring device on the vehicle, the first bearing point comprising exactly three rotational degrees of freedom, and a second bearing point provided at a second end section of the leaf spring apparatus facing away from the first end section for supporting the leaf spring device on the vehicle, the second bearing point comprising exactly one rotational degree of freedom.

Abstract: A heating and cooling system (4A, 4B, 4C, 4D) for a vehicle (1), comprising a heating and cooling module (6) comprising a refrigerant circuit (7), and a refrigerant-air heat exchanger (22) fluidly connected to the refrigerant circuit (7) for tempering a vehicle interior (3) of the vehicle (1), the refrigerant-air heat exchanger (22) being provided outside the heating and cooling module (6).

Abstract: A method for manufacturing a leaf spring device (1) made from a fiber composite plastic, comprising the following steps: a) providing (S1) a construction kit (11) comprising a leaf spring unit (2) made from the fiber composite plastic and a plurality of stiffening elements (8, 8A, 8A?, 8A?, 8B, 8B?, 8B?, 8C, 8C?) for locally stiffening the leaf spring unit (2), b) designing (S2) the leaf spring device (1) according to a desired application, c) selecting (S3) stiffening elements (8, 8A, 8A?, 8A?, 8B, 8B?, 8B?, 8C, 8C?) from the construction kit (11) according to the design of the leaf spring device (1), and d) combining (S4) the selected stiffening elements (8, 8A, 8A?, 8A?, 8B, 8B?, 8B?, 8C, 8C?) and the leaf spring unit (2) to form the leaf spring device (1).

Abstract: A spring device (1A, 1B) for a motor vehicle (2), comprising a spring unit (3) and a stiffness adjusting unit (15) configured to stiffen the spring unit (3) so as to dynamically vary the spring constant (k, k?) of the spring device (1A, 1B).

Abstract: A leaf spring device for a motor vehicle, comprising a leaf spring unit made of a fiber composite plastic, and a piezo element arrangement which is attached to the leaf spring unit, wherein the piezo element arrangement is configured to generate an electric voltage in response to a deformation of the leaf spring unit.

Abstract: A flexible spring element is made of a fibre-reinforced plastics composite material, a functional layer made of a fibre-reinforced plastics composite material being located on each of two mutually opposite sides of a central plane of the flexible spring element. At least one matrix material discharge layer extending parallel to the two functional layers and in a longitudinal direction is arranged in at least one longitudinal portion and has at least a fraction of discharge layer fibres which are oriented differently from the longitudinal direction of the flexible spring element. Within at least one curved portion of the flexible spring element a first volume fraction of flexible spring fibres in the functional layers is smaller, preferably smaller by several % than a second volume fraction of flexible spring fibres in the functional layers within the at least one longitudinal portion.