An air guide apparatus for a vehicle includes a front wheel housing at least partially surrounding a front wheel, and having an air outlet which is open to the front wheel, a first vane assembly including a plurality of first vanes which are tiltable in a position adjacent to the air outlet, and a first driving mechanism by which the plurality of first vanes are driven, and a second vane assembly including a plurality of second vanes which are tiltable in a position adjacent to the plurality of first vanes, and a second driving mechanism by which the plurality of second vanes are driven.

A vehicular aerodynamic device includes first and second links being coupled via first and second engagement members and integrally rotating, thereby transmitting drive force to an aerodynamic member. The first and second engagement members are coupled to the first and second links, respectively, and integrally rotate by engaging with each other, and rotate relative to each other by external force. At least one of a first coupling portion that couples the first link and the first engagement member and a second coupling portion that couples the second link and the second engagement member includes clutch-side and link-side engagement surfaces integrally rotating by engaging with each other. A second gap between the clutch-side and link-side engagement surfaces in a second relative rotation direction is narrower than a first gap between the clutch-side and link-side engagement surfaces in a first relative rotation direction.

A vehicular aerodynamic device includes first and second links being coupled via first and second engagement members and integrally rotating, thereby transmitting drive force to an aerodynamic member. The first and second engagement members are coupled to the first and second links, respectively, and integrally rotate by engaging with each other, and rotate relative to each other by external force. At least one of a first coupling portion that couples the first link and the first engagement member and a second coupling portion that couples the second link and the second engagement member includes clutch-side and link-side engagement surfaces integrally rotating by engaging with each other. A second gap between the clutch-side and link-side engagement surfaces in a second relative rotation direction is narrower than a first gap between the clutch-side and link-side engagement surfaces in a first relative rotation direction.

A vehicle includes an aerodynamic device. The aerodynamic device includes: an air dam movable between a deployed position and a retracted position, an actuator operatively coupled to the air dam, the actuator configured to move the air dam between the deployed position and the retracted position, and a controller communicatively coupled to the actuator. The controller is configured to operate the actuator to move the air dam into the deployed position when the controller receives a service request signal.

A vehicle includes an aerodynamic device. The aerodynamic device includes: an air dam movable between a deployed position and a retracted position, an actuator operatively coupled to the air dam, the actuator configured to move the air dam between the deployed position and the retracted position, and a controller communicatively coupled to the actuator. The controller is configured to operate the actuator to move the air dam into the deployed position when the controller receives a service request signal.

A vehicle is provided that has a vehicle body, a wheel assembly, a suspension linkage, and a cover panel. The vehicle body has an underside and defines a wheel arch that forms an opening in the underside of the vehicle body. The suspension linkage runs within the wheel arch and couples the wheel assembly to the vehicle body to permit motion of the rotation axis of the wheel assembly relative to the vehicle body. The suspension linkage further comprises a first suspension link coupled between the vehicle body and the wheel assembly, whereby the cover panel is coupled to the first suspension link so that the cover panel moves with the first suspension link. The cover panel further extends across part of the opening so that in forward motion the cover panel directs a rearward moving airflow across the opening.

A vehicle is provided that has a vehicle body, a wheel assembly, a suspension linkage, and a cover panel. The vehicle body has an underside and defines a wheel arch that forms an opening in the underside of the vehicle body. The suspension linkage runs within the wheel arch and couples the wheel assembly to the vehicle body to permit motion of the rotation axis of the wheel assembly relative to the vehicle body. The suspension linkage further comprises a first suspension link coupled between the vehicle body and the wheel assembly, whereby the cover panel is coupled to the first suspension link so that the cover panel moves with the first suspension link. The cover panel further extends across part of the opening so that in forward motion the cover panel directs a rearward moving airflow across the opening.

An air dam assembly includes, among other things, an air dam and at least one quick-release pin that secures the air dam to a vehicle structure. An air dam positioning method includes, among other things, when an air dam is in a first position, the step of coupling the air dam to a vehicle structure using at least one quick-release pin in an engaged position. The method further includes transitioning the at least one quick-release pin to a disengaged position, and then, when the quick-release pin is in the disengaged position, moving the air dam to a second position that is different than the first position. The method then, when the air dam is in the second position, includes coupling the air dam to the vehicle structure using the at least one quick-release pin.

An air dam assembly includes, among other things, an air dam and at least one quick-release pin that secures the air dam to a vehicle structure. An air dam positioning method includes, among other things, when an air dam is in a first position, the step of coupling the air dam to a vehicle structure using at least one quick-release pin in an engaged position. The method further includes transitioning the at least one quick-release pin to a disengaged position, and then, when the quick-release pin is in the disengaged position, moving the air dam to a second position that is different than the first position. The method then, when the air dam is in the second position, includes coupling the air dam to the vehicle structure using the at least one quick-release pin.

A vehicle having a vehicle body including a front portion, an opposing rear end portion and an underbody portion configured to face a road surface; and an active diffuser assembly disposed on the underbody portion and configured to control ambient airflow passing under the vehicle body. The active diffuser assembly includes a fixed panel disposed on the vehicle underbody; a movable active panel disposed adjacent the fixed panel and configured for selective movement to be deployed away from the vehicle body and to be retracted toward the vehicle body for stowage; and an actuator configured to deploy and retract the movable active panel, the fixed panel and the movable active panel defining a continuous plane when the movable panel is in the stowed position.