An aerodynamic device provided as a plate-shaped body attached to a roof or a side wall of a vehicle includes means configured to selectively raise ribs arranged in two directions from a surface portion of the plate-shaped body in a switching manner between the two directions.

One embodiment comprises a fairing assembly adapted to couple to a vehicle, the assembly comprising: a support arm mountable to a frame rail of a vehicle and a fairing adapter adapted to mount a fairing to the support arm. The fairing adapter is rotatably coupled to the support arm and is rotatable from a first orientation corresponding to an aerodynamic position to a second orientation corresponding to a first access position. The fairing adapter may also be rotatable to a third orientation corresponding to a second access position. The assembly further comprises a releasable lock to lock the fairing adapter in the first orientation and releasable to allow the fairing adapter to rotate to the second orientation or the third orientation.

Various embodiments of an airfoil and machines with airfoils are disclosed. The airfoils include a thicker leading airfoil portion and a thinner trailing airfoil portion. In one embodiment, the leading airfoil portion is formed by bending a body of the airfoil back toward itself. In another embodiment, the leading airfoil portion has a solid geometry and includes two elliptic surfaces. To prevent detachment of airflow, the leading airfoil portion includes at least two arc portions or surfaces that act to direct the airflow down to the trailing airfoil portion in a manner that stabilizes vortexes that may form in the region of changing thickness.

A vehicle mirror assembly having a housing or base member, a mirror lens and a connecting gasket member. The mirror lens is provided in the shape of a portion of an end of an ellipsoid. The lens has a varying radius of curvature. The center portion of the tens has a smaller radius of curvature than the outer portions along the major axis of the lens creating an improved field of view of the reflected image.

An object of the present invention is to provide an EMC design technique of a device including an electronic device mounted therein for implementing noise amount analysis of a system in which individual electronic devices are combined. A housing model is acquired, component models are selected and acquire, the acquired component models are connected using a wire, the acquired component models are arranged in the acquired housing model, the arranged component models connected using the wire is driven to generate electromagnetic noise from the component models and the wire, the generated electromagnetic noise is propagated in the housing model to calculate a noise amount, and an output process of outputting data of the calculated noise amount is performed. Thus, even in the system in which a plurality of electronic devices are combined, electromagnetic noise analysis of the system can be easily performed, and a noise reduction design can be supported.

A powered deployable spoiler assembly includes a support member adapted for mounting to a motor vehicle and a spoiler panel disposed in a recessed segment of the support member. A pair of power-operated drive units interconnect the spoiler panel to the support member and are operable to move the spoiler panel between a non-deployed position, a first deployed position to provide aerodynamic assistance at a first vehicle speed, and a second deployed position to provide augmented aerodynamic assistance at a second higher vehicle speed. Each drive unit defines a guide slot and includes a stanchion fixed to the spoiler panel and a follower assembly fixed to the stanchion and disposed for movement within the guide slot. Electric motors are coupled to rotary-to-linear conversion mechanisms for converting rotation into translation of the follower assemblies to control movement of the spoiler panel.

A dual-strake assembly can be coupled to the underbody of the vehicle in order to maximize the downforce-to-drag ratio, thereby enhancing the vehicle aerodynamic efficiency. The dual-strake assembly includes a first strake and a second strake having different curvatures. The second strake has a chord length. Each of the first and second strakes has a first edge and a second edge opposite the first edge. The first edges of the first and second strakes are spaced apart from each other so as to define a gap, which has a gap distance measured from the first edge of the first strake to the first edge of the second strake. The gap distance is equal to or less than twenty-five percent of the chord length. The camber of the first strake is less than the camber of the second strake.

A mounting structure for a peripheral information detection sensor including: an aeropart that is disposed above a cabin of a truck and that has a wall surface that faces toward a front direction, a wall surface that faces toward an upper direction, wall surfaces that face outward in a transverse direction, and a wall surface that faces toward a rear direction; a peripheral information detection sensor that is mounted within a space enclosed by the wall surfaces; and a cover that is provided on at least one wall surface that lies opposite the peripheral information detection sensor, and through which only a detection medium that is required for peripheral information detection is able to be transmitted, is provided.

A vehicle includes an air dam assembly disposed at a first end of the vehicle body that is configured to control an airflow between the vehicle body and a road surface from outside the vehicle to the under-hood compartment of the vehicle. The air dam assembly includes a housing having a top wall and a bottom wall defining a forward wall and an opposing rearward wall therebetween. A plurality of flexible pleats are disposed on the forward wall of the of the air dam housing.

A vehicle includes a vehicle body having an underside and a mesh underbody panel. The mesh underbody panel is attached to the underside of the vehicle body, thereby, shielding vehicle components from a ground surface. The vehicle is situated such that the mesh underbody panel and the ground surface define a pathway through which air flows while the vehicle is in motion. The mesh underbody panel includes apertures extending therethrough that allow airflow through the mesh underbody panel while the vehicle is stopped or traveling within a low-speed range and restrict airflow through the mesh underbody panel while the vehicle is traveling within a high-speed range.