A front vehicle-body structure flows air from the vehicle lower side to its upper side. After hitting a front bumper face, the air is separated and flows around and along a top face of an exterior member, ensuring aerodynamic performance. Embodiments include exterior members covering the upper side of an engine room, and a front grille disposed on a lower side relative to a front end portion of the exterior member. A rectification member extends the width of the exterior member in the vehicle width direction on the lower side of the exterior member front end portion. The rectification member includes a front piece portion extending toward the vehicle up-down-direction lower side from the exterior member to an upper end portion of the front grille, and a lower piece portion extending toward the vehicle rear side from an upper end of the front piece portion.

An active front deflector assembly having a deflector panel, actuator, and linkage assemblies each with a predetermined ratio of the links to each other for motion of the deflector panel. The assembly deploys and retracts based on vehicle requirements, and, when deployed, redirects the air flow in the front of the vehicle to improve the vehicle aerodynamics for either fuel economy or performance characteristics. Additionally, it allows for the deflector panel to retract so the vehicle meets ground clearances, etc. The deflector panel is also both rigid and semi-rigid to absorb impact energy. The drive shaft transmits the drive from the actuator coupled to one linkage assembly to the other linkage assembly for moving the deflector panel between the deployed/retracted positions. The actuator is clutched to prevent damage to the system.

A vehicle, a vehicle brake cooling system, a computer program product, and a method of controlling a vehicle in a manner to achieve enhanced aerodynamic performance of the vehicle and active cooling to the wheel brakes during operation of the vehicle. The vehicle includes one or more a vehicle air vents moveable between a first position and a second position, and one or more processors of a computing system. The one or more processors are configured to dynamically conduct, in response to a detection as sensor data one or more of a current position of the vehicle air vents, a current temperature of vehicle wheel brakes, and a current speed of the vehicle, a vehicle brake analysis of the sensor data. The one or more processors are also configured to dynamically control, in response to the vehicle brake analysis and wireless network data, the vehicle air vents between the first position to enhance the aerodynamic performance of the vehicle and the second position to selectively direct ambient airflow to the vehicle wheel brakes in a manner that selectively cools the vehicle wheel brakes.

A vehicle spat device includes: a spat that rotatably supported by a first rotation shaft and configured to be displaced between a deployment position and a storage position; and a link unit transmitting power of an actuator to the spat. The link unit includes a drive link rotating integrally with a drive shaft when the actuator is driven, and an intermediate link connected to the spat via a second rotation shaft and connected to the drive link via a third rotation shaft. The drive link rotates around the drive shaft between a first position where the spat is disposed at the storage position and a second position where the spat is disposed at the deployment position. In the drive link, the first position is a position rotated from a first neutral position in a first rotation direction.

The disclosure provides a vehicle body lower structure, which can improve aerodynamic performance and improve driving stability. The vehicle body lower structure includes an airflow guiding plate that is arranged on the vehicle body of a vehicle and is movable between a receiving position covering the lower part of the vehicle body and a deploying position protruding downward. The airflow guiding plate includes a first airflow guiding plate and a second airflow guiding plate. The first airflow guiding plate is arranged in front of the left and right front wheels of the vehicle, and the second airflow guiding plate is arranged under the center of the vehicle body. Moreover, the protruding amount of the first airflow guiding plate is different from the protruding amount of the second airflow guiding plate in the deploying position.

A trailer truck is the combination of a truck and one or more trailers used to haul freight. A trailer attaches to the truck via a trailer coupling (hitch), with much of its weight borne by the truck. The result is that both the truck and the trailer will have a distinctly different design than a rigid truck and trailer. Exemplary vehicles are provided, such as heavy duty trucks having truck bodies with improved aerodynamic characteristics, including improved drag coefficients.

Deflector device (7) for a motor vehicle wheel (3), comprising at least one aerodynamic region (4, 400, 401) designed to be exposed to an external air flow (IO), the device (7) further comprising an articulated mechanism (21) for moving the at least one aerodynamic region (4, 400, 401) so as to allow the deflector (7) to move from the retracted position to the deployed position, said articulated mechanism (21) comprising a drive member (22), and said articulated mechanism (21) being arranged to move the drive member (22) translationally when the deflector device (7) moves from the retracted position to the deployed position, the deflector device (7) comprising an actuator (19) configured to control the articulated mechanism (21) so as to allow the aerodynamic regions of the deflector to move relative to each other, said deflector device (7) further comprising a security device (50) configured to return said deflector device (7) to the retracted position without intervention by the actuator (19).

An airflow adjusting apparatus includes an airflow generator, a state detector, and a controller. The airflow generator is configured to generate a control airflow to cause the control airflow to join an around-vehicle airflow formed around a vehicle body of a traveling vehicle. The airflow generator is configured to vary a flow direction of the control airflow with respect to a surface of the vehicle body. The state detector is configured to detect a state of the around-vehicle airflow. The controller is configured to vary the flow direction of the control airflow on the basis of the state of the around-vehicle airflow detected by the state detector.

An active front deflector assembly for a vehicle capable of moving between an extended position and a retracted position or any position there between. The active front deflector assembly has a cross member for attaching to an underbody of a vehicle. The frame member also includes a plurality of slip joint connections for connecting to the underbody of the vehicle. The cross member is a fixed link of an actuator link assembly that has an actuator, drive link, floating link and a blade.

An active air flap of a vehicle according to one embodiment of the present invention includes a frame part which communicates with an outside air inlet of a grill, a flap part including a plurality of flap units which are rotatably connected to the frame part and sequentially open or close the outside air inlet of the grill, a rotary shaft which connects the plurality of flap units to the frame part, and a driven pinion gear connected to the rotary shaft, a driving part which transmits a driving force to the flap part, and a control unit which controls the driving part to be driven.