Abstract: A variable lift, variable drag airfoil assembly including a leading edge and a trailing edge connected together in spaced apart relation and an elastic skin connected to and extending between the leading and trailing edges to define an airfoil profile. A resilient spring member positioned within said airfoil profile exerts biased outward pressure against a central portion of the lifting surface of the elastic skin to automatically create a varying thickness of said airfoil profile responsive to increased air speed over the airfoil profile wherein lift and drag of the airfoil assembly are proportionately reduced as airspeed increases. In a preferred embodiment, the airfoil assembly is inverted in the form of a rear spoiler of a land vehicle oriented transversely across a rear portion of the vehicle to produce an increasing downward road gripping force on the rear wheels of the vehicle with increasing vehicle speed while reducing the drag produced by the airfoil assembly.

Abstract: A passenger motor vehicle has an air guiding device (8) mounted at a rear end of the vehicle and moveable relative to the rear end by a setting-out mechanism (7). A mounting element (11) connects the setting-out mechanism (7) at a downwardly open depression (12) at an underside region of the air guiding device (8). The mounting element (11) is hooked into the air guiding device (8) in a first region (13), and is connected to the air guiding device (8) by a screw connection (21) in a second region (15). The design enables particularly simple, cheap and fast mounting of the setting-out mechanism in the air guiding device (8).

Abstract: The air guiding device has one or more air guiding bodies. Each air guiding body has an elongate attachment that extends in the longitudinal direction of the vehicle that bulges in a convex manner, is composed of a flexible or soft-elastic material and is embodied in the form of a half shell having a lateral elongate opening and can be adjusted automatically in the driving condition from a rest position into an operative position, in which it can be lowered in the direction of the roadway. In the rest position, the air guiding body is arranged close to the undersurface and, in the operative position, the air guiding body is held in a lowered position relative to the undersurface.

Abstract: An air dam which provides at least one panel which operates between an open condition and a closed condition in the open space established between a truck coupled to a trailer to alter a part of an air stream generated about the truck-trailer during travel.

Abstract: A fixture (1) for adjusting an air guiding device (2) on a motor vehicle, comprising at least one linear adjustment device (3) for adjusting a linear deployment of the air guiding device (2), and at least one angle adjustment device (4) for adjusting an angle of attack of the air guiding device (2), wherein the adjustment devices (3, 4) are connected to the air guiding device (2) in a force-transmitting manner for adjustment of same.

Abstract: An air deflection apparatus for reduction of vehicular air drag comprises at least one air deflection element coupled to a rear portion of the vehicle but not to the rear-facing surface of the vehicle or, in other embodiments, at least one air deflection element coupled to a rear portion of the vehicle but not to any rear door which the vehicle may have. The air deflection elements are displaceable, preferably in unison, between a retracted position and at least one deployed position in which the air deflection elements intersect with the air flowing around the top and sides, and preferably also the bottom, of the vehicle, and in which they divert that airflow in a manner that enhances the aerodynamic characteristics of the vehicle and thereby improves its fuel economy, resulting in a reduction in fuel cost.

Abstract: A fairing structure for a vehicle having a front vehicular component and a rear vehicular component in tandem and separated by a gap, comprising a top fairing surface adapted to be attached to the rear vehicular component, a first side surface adapted to be attached to a first side of the rear vehicular component, joining a first end of the top surface and generally perpendicular to the top surface, and a second side surface adapted to be attached to a second side of the rear vehicular component, joining a second end of the top surface opposite the first end and generally perpendicular to the top surface. Each of the top and first and second side surfaces has a proximal edge adapted to be positioned adjacent a vehicle, as well as a distal edge adapted to be positioned away from the vehicle with respect to the respective proximal edge.

Abstract: A vehicle includes, but is not limited to at least one flow influencing element with a spoiler edge arranged in a lateral rear region of the vehicle. The flow influencing element has a first position, in which the spoiler edge is substantially concealed by a body element and a second position, in which the spoiler edge is substantially exposed.

Abstract: An air dam assembly mounted under a front end of a vehicle includes a passively deployable air dam assembly. The passively deployable air dam assembly includes a passively deployable air dam having a front surface at least partially exposed to ram air when the vehicle is traveling in a forward direction, and a passive deployment assembly including at least one spring biasing the passively deployable air dam into a retracted position, with the passive deployment assembly engaging the passively deployable air dam to allow the passively deployable air dam to move, against the bias of the spring, from the retracted position to a deployed position closer to ground under the vehicle when a forward speed of the vehicle reaches or exceeds a predetermined activation speed.

Abstract: An aerodynamic wing apparatus for mounting on a top panel portion of a vehicle such as a car, a truck cargo box or trailer portion of a tractor-trailer vehicle, in order to improve the aerodynamic movement of the vehicle through the air, provide lift to the vehicle in order to reduce the effective weight thereof, improve fuel economy of the vehicle, and reduce carbon emissions. The wing apparatus includes a main wing body having an airfoil-shaped cross-section, with a rounded leading edge and a substantially sharp trailing edge. The main wing body is adjustably movable to account for changing ambient conditions. The wing apparatus also includes a support frame for mounting the main wing body to a vehicle so as to be spaced away from a top panel portion thereof. A control system may also be provided to control operation of the apparatus, and a method of operation is described.

Abstract: An airflow control device is mounted to the front end of an automotive vehicle and includes an upper air scoop section having a scoop channel disposed rearward of a bumper assembly and oriented to direct airflow entering a bumper intake opening toward an air-receiving powertrain component. A lower air dam section extends downwardly from the upper section to be positioned below a lower extent of the bumper assembly to deflect airflow away from an underside of the vehicle.

Abstract: The device for actuating a pivoting movement of a vehicle flap about a pivot axis includes a gas spring having a cylinder and a piston rod protruding from the cylinder. Either the cylinder or the piston rod is coupled to a fixed component of the vehicle body, and the other one of cylinder and piston rod is coupled to the flap at a distance from the pivot axis. A flexurally rigid guide extends parallel adjacent to the gas spring and is fixedly connected to the cylinder of the gas spring. One region of a flexible tension and compression element is guided in the guide and operatively connected to the flap, and a second region is guided in a flexible casing and operatively connected to a reversible drive, so that the flexible tension and compression element can be motor-driven.

Abstract: A passenger motor vehicle has an air guiding device (8) mounted at a rear end of the vehicle and moveable relative to the rear end by a setting-out mechanism (7). A mounting element (11) connects the setting-out mechanism (7) at a downwardly open depression (12) at an underside region of the air guiding device (8). The mounting element (11) is hooked into the air guiding device (8) in a first region (13), and is connected to the air guiding device (8) by a screw connection (21) in a second region (15). The design enables particularly simple, cheap and fast mounting of the setting-out mechanism in the air guiding device (8).

Abstract: Described herein are embodiments for extending and retracting an extendable spoiler for assisting a motor vehicle in navigating a turn. According to embodiments, an extendable spoiler has a first and second flaps coupled to first and second outer edges of the spoiler respectively. At least one strut is coupled to an underside of the spoiler and to an extension mechanism that can be used to extend and retract the extendable spoiler when various conditions have been met. A steering detection mechanism is also included and configured to detect left and right turn of the motor vehicle and controls which extendable spoilers are moved from a retracted state to an extended state.

Abstract: A rear lid closes a rear compartment of a passenger vehicle. The rear lid, when fitted, is attached to the vehicle and is composed of an inner part and an outer part. The rear lid contains a spoiler device which can be displaced between an inoperative position and an operative position and interacts with an adjustment device. In order to simplify producibility of the rear lid, the inner part is formed by an assembly carrier which forms the supporting structure of the rear lid and to which at least the adjustment device of the spoiler device is fastened. The outer part is formed by the spoiler device and a panel device.

Abstract: A device for sensing a position of a spoiler on a motor vehicle, where the spoiler is moved with a drive unit between a retracted setpoint base position and an extended setpoint operating position. At least one sensor is provided with which at least one of the setpoint positions of the spoiler can be sensed, and which generates first position signals on the basis of the sensed setpoint position. An adjustment position sensing device is provided which senses a current position of the spoiler, and which generates second position signals on the basis of the sensed current position. An evaluation unit evaluates the first position signals and the second position signals, and which actuates, on the basis of the evaluation result, an information device which provides the driver with information about the state of at least one of the position sensing devices and/or actuates the drive unit.

Abstract: The present invention relates to the improvement of the aerodynamic properties of bluff-body shaped ground vehicles. A least one air modulator is assembled on the vehicle to modify an air flow around the vehicle, such that the drag on the vehicle is decreased. Each air modulator has an array of openings including a number of openings, which are arranged next to one another along a essentially straight line. A control unit controls the at least one air modulator output oscillating air from each opening such that air vortices are formed outside the opening. The at least one air modulator is arranged on the vehicle, such that these air vortices have axes that, in proximity to the opening, are essentially perpendicular to a forward driving direction of the vehicle.

Abstract: A vehicle may include multiple fuel storage tanks arranged in a split side-by-side configuration. The vehicle may include a rear suspension having a linkage which moves in a direction not parallel with a centerline plane of the vehicle. The vehicle may include a tip-over structure which prevents unwanted tip-over of the vehicle. The vehicle may have moveable foot control levers to accommodate different size riders. The vehicle may include a moveable windshield.

Abstract: A windshield device for a motorcycle includes a front cowl located at a front side of the vehicle body to cover a vehicle body; a windscreen disposed at an upper part of the front cowl so as to be vertically movable; an air introducing port for introduction of air from the front side being formed between a lower end of the windscreen and a front surface of the front cowl; and an air guide for guiding the air introduced through the air introducing port to flow rearwards along a rear surface of the windscreen, wherein the air guide is firmly attached to the rear surface of the windscreen.

Abstract: A pneumatic system has a compressor (8), a pneumatic reservoir (20) for a gaseous pressure transmission medium, at least one valve device (12) and at least one pneumatically actuable actuator (4). To provide satisfactory functioning even under extreme temperatures, and to provide a simple cost effective construction, the pneumatic reservoir (20) to which the compressor (8) is connected has a variable volume.

Abstract: In order to improve a drive unit for a wind stop device for convertible vehicles, comprising a base part which can be mounted on a vehicle body and a wind blocker which can be pivoted relative to the base part between an active upright position and an inactive position folded towards the back, wherein the drive unit serves the purpose of pivoting the wind blocker between the active position and the inactive position, in such a manner that it can be fitted to the wind stop device without any alteration to the constructional design of the wind stop device it is suggested that the drive unit comprise a displacing device and a displacing element which is tensilely rigid in its direction of extension and movable transversely to the direction of extension and which couples the displacing device to the wind blocker for pivoting the wind blocker between the active position and the inactive position and, for this purpose, has a section extending in a curved manner at least in one position of the wind blocker.

Abstract: A drag reduction device for a motor vehicle is provided that includes a substantially flat plate member preferably rotatably connected to a tailgate assembly. The tailgate assembly has at least one, but preferably two panels defining a cavity. The plate member can be selectively positioned at a first position and a second, third, or fourth position. When in the first position, the plate member is inside the cavity. In the second position, the plate member is substantially vertical, and partially extending outside the cavity. In the third position, the plate member is extending forward, preferably in a horizontal orientation outside the cavity. When in the fourth position, the plate member is extending rearward, preferably in a horizontal orientation outside the cavity. The plate member is of sufficient length when in the second, third, and fourth positions to thereby reduce the coefficient of drag and lift on the vehicle.

Abstract: A vehicle flow trip, includes a moveable body portion in physical communication with a vehicle body, and an actuator comprising an active material in operative communication with the vehicle body and the moveable body portion; wherein the active material undergoes a change in a property upon receipt of an activation signal, wherein the change in a property is effective to displace the moveable body portion from either an original position or a deployed position in an airflow stream to the other of the original or the deployed position through motion of the actuator.

Abstract: A motor vehicle, especially a passenger car, is provided with an air-conducting device arranged in its rear area. The air conducting device can be moved by way of an adjusting mechanism from a rest position flush with the adjacent body of the rear area into a driven-out operating position. The adjusting mechanism includes two openers arranged in side areas of the air-conducting device for moving the air-conducting device. In order to be able to adjust an air-conducting element continuously from a lowered rest position and a raised operating position, each opener is connected via a swivel-joint on a bearing part that is fastened to the vehicle and aligned vertically.

Abstract: An air guiding device for a motor vehicle, in particular a rear spoiler, can be moved between a retracted non-use position and at least one deployed use position and contains an air guiding body on which are disposed two lateral air guiding body sections which can be moved in the vehicle transverse direction. Here, it is important that, in the non-use position of the air guiding device, the lateral air guiding body sections form a common joint which runs in the vehicle longitudinal direction, with at least one of the two air guiding body sections having, on its side which forms an edge of the common joint, a depression at least in regions.

Abstract: A drive unit for a movable member includes the movable member adjusting aerodynamic characteristics of a vehicle while the movable member is changing a position thereof, an electric motor operating the movable member, a preventing device preventing the movable member from operating beyond a specified operating range by making contact with the movable member, and a controlling device supplying an electric power to the electric motor for a reference time and operating the movable member from a first end to a second end of the specified operating range, the controlling device correcting the reference time on the basis of an external factor that affects an operating speed of the movable member.

Abstract: Vanes are used for reducing drag on a moving vehicle having a substantially planar rear surface. The current disclosure describes a means for mounting vanes to a vehicle using pliant material which creates no work for the driver of the vehicle during loading or unloading activities. The apparatus is extremely light weight, and includes a rigid vane of length L having a leading edge, a trailing edge, and an aerodynamic center therebetween, positioned at a distance of between 0.15 L and 0.5L from said leading edge. The vane has an inner surface facing the vehicle and an outer surface. At least one first pliant attachment means connects the leading edge of the vane to a side surface of said vehicle; at least one second pliant attachment means connects the inner surface of said vane to a rear surface of said vehicle; and a third pliant attachment means connects the trailing edge of the vane to the vehicle. The second pliant attachment means is connected to the inner surface of the vane at a distance of between 0.

Abstract: An active air dam adapted for use with a vehicle, includes a deflector pivotally translatable relative to the vehicle, so as to be caused to achieve stowed and deployed conditions, wherein the deflector, when in the deployed condition, is configured to occlude air flow beneath the vehicle, and further includes an active material actuator comprising an active material drivenly coupled to the deflector, and configured to cause the deflector to pivot to one of the stowed and deployed conditions as a result of activating the material, and the vehicle is preferably configured to cause the actuator to pivot the deflector when a pre-determined vehicle or external condition is detected.

Abstract: Apparatus and method for an airfoil being disposed on the rear of an automobile or like vehicle. The angle of the airfoil is controlled by a bob weight connected to the airfoil through a series of linkages so that when the vehicle accelerates or de-accelerates, the angle of the airfoil is adjusted. The linkage between the airfoil and the bob weight controls the angle of attack of the airfoil so as to optimize vehicle down force on the tires so as to optimize performance.

Abstract: Mechanisms are described for selectively closing grille and/or bumper openings. These mechanisms may be operated in response to one or more vehicle parameters. Closure mechanism control signals may be delivered to such mechanisms along a vehicle databus. In addition, vehicle parameters used in determining the control of such mechanisms may be sensed and provided along the databus to a controller which then processes the parameter information for determining whether to open or close the vehicle grille closing mechanism and/or the vehicle bumper opening closing mechanism.

Abstract: The device for actuating a pivoting movement of a vehicle flap about a pivot axis includes a gas spring having a cylinder and a piston rod protruding from the cylinder. Either the cylinder or the piston rod is coupled to a fixed component of the vehicle body, and the other one of cylinder and piston rod is coupled to the flap at a distance from the pivot axis. A flexurally rigid guide extends parallel adjacent to the gas spring and is fixedly connected to the cylinder of the gas spring. One region of a flexible tension and compression element is guided in the guide and operatively connected to the flap, and a second region is guided in a flexible casing and operatively connected to a reversible drive, so that the flexible tension and compression element can be motor driven.

Abstract: The present invention relates to a deflector for responding a vehicle speed including a deflector body installed at a door frame to rotate diagonally toward the rear of the vehicle, wherein one end of the deflector body in the front of the vehicle is connected via a hinge and the other end thereof in the rear of the vehicle is configured in a form of a free end; a solenoid connected to the deflector body and pushing up or down the deflector body; a piezoelectric element installed in a division channel and sensing the intensity of wind being in contact with the same; and an ECU adjusting a projection height of the deflector body in multiple levels by applying control current corresponding to three levels to the solenoid on the basis of the vehicle speed, a status of a rear door glass, and a sensing signal of the piezoelectric element.

Abstract: There is provided a vehicle-body underside airflow controller capable of obtaining an optimum aerodynamic performance by detecting vehicle speed and by controlling a rise angle of an under-cover (10) corresponding to the vehicle speed by driving actuators (14) so that a road clearance of the under-cover (10) becomes H2 and the rise angle thereof becomes ?2 when the vehicle speed is equal to or higher than a predetermined vehicle speed (when high speed) and by driving the actuators (14) so that the road clearance of the under-cover (10) becomes H1 and the rise angle thereof becomes ?1 when the vehicle speed is lower than the predetermined vehicle speed (when low speed).

Abstract: Foldable cab extenders are disclosed which are secured to the rearward ends of fixed cab extenders secured to the opposite rearward sides of a tractor cab. Each of the foldable cab extenders includes a forward panel member, an intermediate panel member and a rearward panel member with the forward panel member being secured to the associated fixed cab extender and with the intermediate panel member and the forward panel member being hingedly secured together and with the rearward panel member being hingedly secured to the intermediate panel member. The cab assemblies are selectively movable between a deployed position to a stowed position and vice versa. Actuators are operatively connected to the intermediate panel members and to the rearward panel members to enable the assemblies to be pivotally moved between their stowed and deployed positions. The actuators may be hydraulic or pneumatic cylinders or electrically driven devices.

Abstract: The invention relates to an air-guiding device (10) of a vehicle (1), comprising a spoiler (12) fastened to a spoiler base (14), and an adjusting device (20) for adjusting the spoiler base (14) between an inoperative position, in which the spoiler (12) is essentially situated within the vehicle contour (3), and at least one first operating position, in which the spoiler (12) is deployed beyond the vehicle contour (3) in order to provide a down force effect during the journey, the adjusting device (20) comprising a pivoting-link arrangement (22, 28) coupled to the spoiler base (14) and controllable driving means for pivoting the pivoting-link arrangement (22, 28) in order to adjust the spoiler base (14) between the inoperative position and the operating position.

Abstract: An aerodynamic base drag reduction and stability control apparatus and method uses a plurality of articulable base flaps each hingedly connected near one of a left side edge, a right side edge, a top side edge, and a bottom side edge of a rear end base of a vehicle so that each of the base flaps have a corresponding range of motion between a first position subject to direct impingement by a free stream adjacent the vehicle in motion and a second position not subject to direct impingement by the free stream. And a controller independently actuates the base flaps to corresponding desired positions relative to the free stream and within the corresponding ranges of motion to produce a desired combined aerodynamic drag reducing and/or stabilizing effect on the vehicle in motion.

Abstract: An airflow control device comprises a body and an active material in operative communication with the body. The active material, such as shape memory material, is operative to change at least one attribute in response to an activation signal. The active material can change its shape, dimensions and/or stiffness producing a change in at least one feature of the airflow control device such as shape, dimension, location, orientation, and/or stiffness to control vehicle airflow to better suit changes in driving conditions such as weather, ground clearance and speed, while reducing maintenance and the level of failure modes. As such, the device reduces vehicle damage due to inadequate ground clearance, while increasing vehicle stability and fuel economy. An activation device, controller and sensors may be employed to further control the change in at least one feature of the airflow control device such as shape, dimension, location, orientation, and/or stiffness of the device.

Abstract: In order to improve a windbreak device for motor vehicles, in particular for cabriolet vehicles, comprising a windbreak base which can be mounted such that it is fixed to the vehicle and on which a wind deflector which extends in a wind deflector surface can be mounted so as to move between an active position and an inactive position, and a drive device for moving the wind deflector between the inactive and the active position and vice versa, in such a way that the said windbreak device can be operated in as optimum a manner as possible, it is proposed that the drive device can be supplied with power from an on-board electrical system of the motor vehicle by means of a power transmission device, and that the power transmission device comprises a first element which is disposed on the windbreak base, and a second element which is disposed on a side wall of the body of the motor vehicle, the said elements transferring power from the on-board electrical system of the motor vehicle to the drive device which is di

Abstract: One or more airfoils, mounted above the upper surface of an automobile or other vehicle, optionally with variable angle of attack and/or camber, under the continuous automatic control of the vehicle's computer (electronic control module), for the purpose of providing well-distributed vertical thrust with minimum drag, or strong downward thrust with drag, depending on driving circumstances, thereby increasing the safety of the vehicle as well as improving its efficiency and performance.

Abstract: A motor vehicle (1) has a wind deflector (13) adjacent an upper cowl (8), a roof arrangement (10) behind the wind deflector (13) and an air-guiding device (16) behind the roof arrangement (10). The wind deflector (13) is extended into a first operative position (WS1) and the rear air-guiding device (16) is transferred into first lifting position (HS1) if the roof arrangement (10) is open and if the driving speed (VF) of the motor vehicle (1) is below a predetermined first value (V1). The wind deflector (13) is transferred into a second operative position (WS2) and the rear air-guiding device (16) is transferred into a second lifting position (HS2) above the first lifting position (HS1) if the roof arrangement (10) is open and if the driving speed (VF) is above a predetermined, second value (V2).

Abstract: A spoiler device, especially a rear spoiler, is adjustable between a non-usage setting and at least one usage setting. The rear spoiler is joined at its rear end area as viewed in the direction of travel via a covering device having a folded structure with a body, especially with a trunk lid of a motor vehicle. The covering device is embodied as a two-component part.

Abstract: The invention provides a fairing assembly (10) for a motorcycle (12) including an aerodynamic shield (11) and a mounting arrangement for mounting the shield (11) on a motorcycle (12). The shield (11) is operable between a stowed condition and an operative condition. In the operative condition, the shield (11) is positioned to reduce aerodynamic drag on a front wheel (13) of a motorcycle (12), such that, in use, the drag on the front wheel (13) is smaller when the shield (11) is in its operative condition than when the shield (11) is in its stowed position. The invention also extends to a motorcycle (12) having such an aerodynamic shield (11) mounted adjacent a front wheel (13) of the motorcycle (12). The invention further extends to a method of improving the aerodynamic characteristics of a motorcycle (12).

Abstract: A drag reduction mean which consists a duct and a support mean which duct can reflect passed through flows and which is mounted on one end of the support mean which another end can be mounted on an object which can move in a fluid; the length of the support mean being able to be altered by a mechanical mean; the ratio of the cross-sectional areas of the entrance and the exit of the duct being able to be altered; the normal directions of the exit of the duct being able to be altered; the algorithms of using the drag reduction means being revealed.

Abstract: An adjustable aerodynamic splitter for a motor vehicle having a rearward flexible segment for attachment to the vehicle body and a forward more rigid segment, wherein the forward segment's leading edge is arranged for selectively attaching thereto an extension strip of a desired width, and at least one pair of adjustable length linkages attaching the splitter to the vehicle body near the leading edge, spaced symmetrically about the vehicle centerline, and arranged to raise or lower the leading edge in response to adjustment of the linkages' length.

Abstract: A reversibly deployable spoiler for a vehicle comprises a body and an active material in operative communication with the body. The active material, such as shape memory material, is operative to change at least one attribute in response to an activation signal. The active material can change its shape, dimensions and/or stiffness producing a change in at least one feature of the active spoiler airflow control device such as shape, dimension, location, orientation, and/or stiffness to control vehicle airflow and downforce to better suit changes in driving conditions such as speed, while reducing maintenance and the level of failure modes. An activation device, controller and sensors may be employed to further control the change in at least one feature of the active spoiler airflow control device such as shape, dimension, location, orientation, and/or stiffness.

Abstract: A wind deflector noise reduction system is provided. The wind deflector noise reduction system particularly reduces or eliminates wind throb in a moving vehicle having a rear side window in an open position. The system includes a panel attached to the B-pillar of a motor vehicle and operable to move between a closed position and an open position. When the panel is in the open position, wind is deflected from entering the moving vehicle. An actuator associated with the panel and operable to move the panel between the closed and the open position can be energized by a controller. The controller can be activated by the user of the motor vehicle and/or by a sensor that detects the position of the rear side window.

Abstract: An air deflection apparatus for reduction of vehicular air drag comprises at least one air deflection element coupled to a rear portion of the vehicle but not to the rear-facing surface of the vehicle or, in other embodiments, at least one air deflection element coupled to a rear portion of the vehicle but not to any rear door which the vehicle may have. The air deflection elements are displaceable, preferably in unison, between a retracted position and at least one deployed position in which the air deflection elements intersect with the air flowing around the top and sides, and preferably also the bottom, of the vehicle, and in which they divert that airflow in a manner that enhances the aerodynamic characteristics of the vehicle and thereby improves its fuel economy, resulting in a reduction in fuel cost.

Abstract: A drive for moving a lamella of a wind deflector is provided. The drive includes at least one coupling mechanism by which the lamella can be adjusted from a non-use position into a use position and vice versa. The mechanism is articulatedly connected at one end to the lamella and at the other end to the roof frame. The coupling mechanism is designed as a crank-rocker mechanism which raises the lamella away from the roof frame into the use position, and lowers the lamella onto the roof frame into the non-use position, in a substantially parallel fashion.

Abstract: A vehicle air guiding system in a rear area of the vehicle has a central air guiding element displaceable between a moved-in inoperative position into a moved-out operative position. Lateral air guiding elements, which are displaceable together with the central air guiding element, are telescopically displaceable relative to the central air guiding element while enlarging the transverse dimension of the air guiding system transversely to vehicle longitudinal direction from an also moved-in inoperative position into an also moved-out operative position. In the inoperative position, the lateral air guiding elements are pushed over the central air guiding element so that they rest against one another by way of the end sections and completely cover or envelop the central air guiding element.

Abstract: A motor vehicle with at least one air guide device, which can be extended by means of a drive device, and which can be adjusted to at least one intermediate position between a maximally extended and a completely retracted position. The motor vehicle comprises an adjustable sliding/tilting roof, wherein a control unit is provided, which is designed so that it acts on an air guide element of the air guide device as a function of the position of the sliding/tilting roof.