Selective closing of at least one vehicle opening at a front portion of a vehicle

• US 7,766,111 B2
• Filed: 08/24/2005
• Issued: 08/03/2010
• Est. Priority Date: 10/29/2004
• Status: Expired due to Fees

• Current Assignee: Daimler Trucks North America LLC (Daimler Truck Holding AG)
• Original Assignee: Daimler Trucks North America LLC (Daimler Truck Holding AG)
• Inventors: Shin, Changhyun, Trabant, Carl, von Mayenburg, Michael, Guilfoyle, Matthew
• Primary Examiner(s): Dayoan; Glenn
• Assistant Examiner(s): MEYER, JACOB B
• Application Number:
  US11/211,331
• Publication Number:
  US 20060102399A1
• Time in Patent Office: 1,805 Days
• Field of Search: 180/68.1, 180/68.2, 180/903, 296/193.1, 296/180.5, 296/180.1, 296/180.3
• US Class Current: 180/68.1
• CPC Class Codes: B60K 11/04 Arrangement or mounting of radiators, radiator shutters, or radiator blinds B60K11/085 takes precedence
• CPC Class Codes: B60K 11/085 with adjustable shutters or blinds
• CPC Class Codes: B60R 19/48 combined with, or convertible into, other devices or objects, e.g. bumpers combined with road brushes, bumpers convertible into beds
• CPC Class Codes: B62D 35/001 For commercial vehicles or tractor-trailer combinations, e.g. caravans
• CPC Class Codes: Y02T 10/88 Optimized components or subsystems, e.g. lighting, actively controlled glasses
• CPC Class Codes: Y10S 180/903 Airstream reactive vehicle or vehicle structure

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.

Claims

1. A vehicle comprising:

a grille comprising a plurality of spaced apart grille bars that have air flow gaps therebetween, the grille having a front side and a rear side, the rear side being nearer to an engine compartment of the vehicle than the front side;

an air flow regulator slidably coupled to the vehicle in a position located to the rear of the grille, the air flow regulator being movable between at least one first air flow restricting position and at least one second air flow open position, the air flow regulator comprising a plurality of spaced apart air flow control slats, wherein when the air flow regulator is in a second air flow open position, at least a plurality of the air flow control slats are at least partially positioned behind respective grille bars so as to at least partially open spaces between grille bars, and wherein when the air flow regulator is in a first air flow restriction position, at least a plurality of the air flow control slats are positioned to a greater extent in the air flow gaps between the grille bars to thereby restrict air flow through the air flow gaps;

an air regulator actuator operable to selectively shift the air flow regulator between first and second positions; and

an air regulator actuator controller operable to control the air regulator actuator and thereby the position of the air regulator in response to at least one vehicle operating condition and at least one environmental condition, wherein the at least one vehicle operating condition comprises at least one of an air compressor output pressure and a turbo charger output temperature.

2. An apparatus according to claim 1 in which at least a plurality of the air flow control slats are entirely hidden in the wind shadow behind respective grille bars when the air flow regulator is in a most open to air flow position of the second positions.

3. An apparatus according to claim 1 in which the grille bars are transverse and wherein the air regulator actuator is operable to slide the air flow regulator upwardly and downwardly between the first and second positions.

5. An apparatus according to claim 1 comprising a bug screen positioned at least partially between the grille and the air flow regulator.

9. An apparatus according to claim 1 wherein the air regulator actuator comprises at least one solenoid.

10. An apparatus according to claim 1 wherein the at least one vehicle operating condition also comprises the vehicle speed and wherein the at least one environmental condition comprises the ambient air temperature.

4. A vehicle comprising:

a grille comprising a plurality of spaced apart grille bars that have air flow gaps therebetween, the grille having a front side and a rear side, the rear side being nearer to an engine compartment of the vehicle than the front side;

an air flow regulator slidably coupled to the vehicle in a position located to the rear of the grille, the air flow regulator being movable between at least one first air flow restricting position and at least one second air flow open position, the air flow regulator comprising a plurality of spaced apart air flow control slats, wherein when the air flow regulator is in a second air flow open position, at least a plurality of the air flow control slats are at least partially positioned behind respective grille bars so as to at least partially open spaces between grille bars, and wherein when the air flow regulator is in a first air flow restriction position, at least a plurality of the air flow control slats are positioned to a greater extent in the air flow gaps between the grille bars to thereby restrict air flow through the air flow gaps;

an air regulator actuator operable to selectively shift the air flow regulator between first and second positions;

wherein the grille bars are transverse and wherein the air regulator actuator is operable to slide the air flow regulator upwardly and downwardly between the first and second positions; and

wherein each of a plurality of air flow control slats is positioned at least partially behind an associated grille bar when the air flow regulator is in a second open air flow position, wherein each of the plurality of air flow slats is slid to a first position further into the air flow gap between the associated grille bar and an adjacent grille bar when the air flow regulator is slid from a second position to the first position, wherein the height of each of the plurality of slats is less than the height of the air flow gap between the associated grille bar and an adjacent grille bar such that, when the air flow regulator is positioned in a most closed position, each of said plurality of air flow control slats only partially blocks the air flow gap between the associated grille bar and the adjacent grille bar, and wherein the height of each of the plurality of slats is no greater than the height of the associated grille bar such that, when the air flow regulator is positioned in a most open position, the plurality of air flow control slats are each entirely hidden in the wind shadow of the associated grille bar.

6. A vehicle comprising:

a grille comprising a plurality of spaced apart grille bars that have air flow gaps therebetween, the grille having a front side and a rear side, the rear side being nearer to an engine compartment of the vehicle than the front side;

an air flow regulator slidably coupled to the vehicle in a position located to the rear of the grille, the air flow regulator being movable between at least one first air flow restricting position and at least one second air flow open position, the air flow regulator comprising a plurality of spaced apart air flow control slats, wherein when the air flow regulator is in a second air flow open position, at least a plurality of the air flow control slats are at least partially positioned behind respective grille bars so as to at least partially open spaces between grille bars, and wherein when the air flow regulator is in a first air flow restriction position, at least a plurality of the air flow control slats are positioned to a greater extent in the air flow gaps between the grille bars to thereby restrict air flow through the air flow gaps;

an air regulator actuator operable to selectively shift the air flow regulator between first and second positions;

wherein the grille bars are transverse and wherein the air regulator actuator is operable to slide the air flow regulator upwardly and downwardly between the first and second positions; and

wherein the air flow regulator is moved vertically by the air regulator actuator between first and second positions, the air flow regulator comprising plural vertically oriented slide slots, a respective slide being positioned in each slide slot and coupled to the vehicle, the slides and slide slots guiding the motion of the air flow regulator between the first and second positions.

7. An apparatus according to claim 6 wherein each of the slide slots comprises an upper slide receiving opening portion and an upper entrance opening portion leading to the upper slide receiving opening portion, the upper entrance opening portion being of a reduced cross-sectional dimension in comparison to the greatest cross-sectional dimension of the upper slide receiving opening portion, each slide slot comprising a lower slide receiving opening portion and a lower entrance opening portion leading to the lower slide receiving opening portion, the lower entrance opening portion being of a reduced cross-sectional dimension in comparison to the greatest cross-sectional dimension of the lower slide receiving opening portion.

8. An apparatus according to claim 7 comprising noise dampening material bounding at least a portion of the upper slide receiving opening portion and noise dampening material bounding at least a portion of the lower slide receiving opening portion.

11. A vehicle comprising:

a grille comprising a plurality of spaced apart grille bars that have air flow gaps therebetween, the grille having a front side and a rear side, the rear side being nearer to an engine compartment of the vehicle than the front side;

an air flow regulator slidably coupled to the vehicle in a position located to the rear of the grille, the air flow regulator being movable between at least one first air flow restricting position and at least one second air flow open position, the air flow regulator comprising a plurality of spaced apart air flow control slats, wherein when the air flow regulator is in a second air flow open position, at least a plurality of the air flow control slats are at least partially positioned behind respective grille bars so as to at least partially open spaces between grille bars, and wherein when the air flow regulator is in a first air flow restriction position, at least a plurality of the air flow control slats are positioned to a greater extent in the air flow gaps between the grille bars to thereby restrict air flow through the air flow gaps;

an air regulator actuator operable to selectively shift the air flow regulator between first and second positions; and

comprising an air regulator actuator controller operable to control the air regulator actuator, wherein the vehicle comprises a fan, and wherein the air regulator actuator controller is responsive to whether the fan is on or off with the air regulator actuator controller being operable to control the air regulator actuator to position the air flow regulator in a second air flow open position during at least a majority of the time that the engine fan is on.

12. A vehicle comprising:

a grille comprising a plurality of spaced apart grille bars that have air flow gaps therebetween, the grille having a front side and a rear side, the rear side being nearer to an engine compartment of the vehicle than the front side;

an air flow regulator slidably coupled to the vehicle in a position located to the rear of the grille, the air flow regulator being movable between at least one first air flow restricting position and at least one second air flow open position, the air flow regulator comprising a plurality of spaced apart air flow control slats, wherein when the air flow regulator is in a second air flow open position, at least a plurality of the air flow control slats are at least partially positioned behind respective grille bars so as to at least partially open spaces between grille bars, and wherein when the air flow regulator is in a first air flow restriction position, at least a plurality of the air flow control slats are positioned to a greater extent in the air flow gaps between the grille bars to thereby restrict air flow through the air flow gaps;

an air regulator actuator operable to selectively shift the air flow regulator between first and second positions; and

comprising an air regulator controller operable to control the air regulator actuator to selectively move the air flow regulator so as to limit the length of time that the air flow regulator is continuously maintained at any one position to be less than a selected maximum time t_max.

13. A vehicle comprising:

a grille comprising a plurality of spaced apart grille bars that have air flow gaps therebetween, the grille having a front side and a rear side, the rear side being nearer to an engine compartment of the vehicle than the front side;

an air flow regulator slidably coupled to the vehicle in a position located to the rear of the grille, the air flow regulator being movable between at least one first air flow restricting position and at least one second air flow open position, the air flow regulator comprising a plurality of spaced apart air flow control slats, wherein when the air flow regulator is in a second air flow open position, at least a plurality of the air flow control slats are at least partially positioned behind respective grille bars so as to at least partially open spaces between grille bars, and wherein when the air flow regulator is in a first air flow restriction position, at least a plurality of the air flow control slats are positioned to a greater extent in the air flow gaps between the grille bars to thereby restrict air flow through the air flow gaps;

an air regulator actuator operable to selectively shift the air flow regulator between first and second positions;

a bumper with at least one bumper air flow opening passing through the bumper;

a bumper closure member supported by the vehicle and operable to shift between at least one first closure member position wherein the bumper closure member at least partially restricts the air flow through the bumper opening and at least one second closure member position wherein the bumper closure member restricts air flow through the bumper opening to a lesser extent than the restriction on air flow when the bumper closure member is in the first closure member position;

a bumper closure member actuator operable to selectively shift the bumper closure member between first and second closure member positions; and

an air regulator controller operable to control the air regulator actuator and thereby the position of the air regulator in response to at least one vehicle operating condition and at least one environmental condition in which the vehicle is being operated, wherein the at least one vehicle operating condition comprises at least one of an air compressor output pressure and a turbo charger output temperature.

14. An apparatus according to claim 13 wherein the bumper closure member comprises opposed first and second upper channels, the first channel being positioned along a first side of the bumper opening and the second channel being positioned along a second side of the bumper openings opposite to the first side of the bumper opening, respective third and fourth lower channels, the third channel being positioned along the first side of the bumper opening and the fourth channel being positioned along the second side of the bumper opening, the first and third channels being angled relative to one another with the first channel extending upwardly and rearwardly from a first location adjacent to an upper end of the third channel and the third channel extending downwardly and rearwardly from said first location, the second and fourth channels being angled relative to one another with the second channel extending upwardly and rearwardly from a second location adjacent to an upper end of the fourth channel and the fourth channel extending downwardly and rearwardly from said second location, the bumper closure member comprising a first upper portion coupled to the first channel such that motion of such first upper portion is guided by the first channel, the bumper closure member comprising a second lower portion coupled to the second channel such that motion of said second lower portion is guided by the second channel, the bumper closure member comprising a third upper portion opposite to said first upper portion and coupled to the third channel such that motion of the third upper portion is guided by the third channel, the bumper closure member comprising a fourth lower portion opposite to said second lower portion and coupled to the fourth channel such that motion of the fourth lower portion is guided by the fourth channel, and the bumper closure member actuator being coupled to the bumper closure member for shifting the bumper closure member between first and second positions with the channels guiding the motion of the bumper closure member.

15. An apparatus according to claim 13 wherein the bumper closure member comprises a closure element pivotally coupled to the vehicle so as to pivot, in response to actuation by the bumper closure member actuator, between first and second closure element positions corresponding to the first and second closure member positions, wherein the closure element substantially closes the bumper opening to the flow of air therethrough when the closure element is in a most closed second position.

16. An apparatus according to claim 15 wherein the bumper closure member pivots upwardly to shift the bumper closure element from a first position to the most closed second position.

17. An apparatus according to claim 13 comprising a closure member actuator controller operable to control the bumper closure member actuator and thereby the position of the bumper closure member in response to at least one vehicle operating condition and at least one environmental condition.

18. An apparatus according to claim 17 wherein the at least one vehicle operating condition comprises the vehicle speed and wherein the at least one environmental condition comprises the ambient air temperature.

19. An apparatus according to claim 13 comprising a closure member actuator controller operable to control the bumper closure member actuator to selectively move the bumper closure member so as to limit the length of time that the bumper closure member is continuously maintained in any one position to be less than a selected maximum time t_max.

20. An apparatus according to claim 13 wherein the air regulator actuator controller and closure member actuator controller comprise a common controller.

21. A vehicle comprising:

a grille comprising a plurality of spaced apart grille bars that have air flow gaps therebetween, the grille having a front side and a rear side, the rear side being nearer to an engine compartment of the vehicle than the front side;

an air flow regulator slidably coupled to the vehicle in a position located to the rear of the grille, the air flow regulator being movable between at least one first air flow restricting position and at least one second air flow open position, the air flow regulator comprising a plurality of spaced apart air flow control slats, wherein when the air flow regulator is in a second air flow open position, at least a plurality of the air flow control slats are at least partially positioned behind respective grille bars so as to at least partially open spaces between grille bars, and wherein when the air flow regulator is in a first air flow restriction position, at least a plurality of the air flow control slats are positioned to a greater extent in the air flow gaps between the grille bars to thereby restrict air flow through the air flow gaps;

an air regulator actuator operable to selectively shift the air flow regulator between first and second positions;

a bumper with at least one bumper air flow opening passing through the bumper;

a bumper closure member supported by the vehicle and operable to shift between at least one first closure member position wherein the bumper closure member at least partially restricts the air flow through the bumper opening and at least one second closure member position wherein the bumper closure member restricts air flow through the bumper opening to a lesser extent than the restriction on air flow when the bumper closure member is in the first closure member position;

a bumper closure member actuator operable to selectively shift the bumper closure member between first and second closure member positions; and

comprising a closure member actuator controller operable to control the closure member actuator, wherein the vehicle comprises a fan, and wherein the bumper closure member actuator controller is responsive to whether the fan is on or off with the bumper closure member being in a second air flow open position during at least a majority of the time that the engine fan is on.

22. A vehicle comprising:

a grille comprising a plurality of spaced apart grille bars that have air flow gaps therebetween, the grille having a front side and a rear side, the rear side being nearer to an engine compartment of the vehicle than the front side;

an air flow regulator slidably coupled to the vehicle in a position located to the rear of the grille, the air flow regulator being movable between at least one first air flow restricting position and at least one second air flow open position, the air flow regulator comprising a plurality of spaced apart air flow control slats, wherein when the air flow regulator is in a second air flow open position, at least a plurality of the air flow control slats are at least partially positioned behind respective grille bars so as to at least partially open spaces between grille bars, and wherein when the air flow regulator is in a first air flow restriction position, at least a plurality of the air flow control slats are positioned to a greater extent in the air flow gaps between the grille bars to thereby restrict air flow through the air flow gaps;

an air regulator actuator operable to selectively shift the air flow regulator between first and second positions;

a bumper with at least one bumper air flow opening passing through the bumper;

a bumper closure member supported by the vehicle and operable to shift between at least one first closure member position wherein the bumper closure member at least partially restricts the air flow through the bumper opening and at least one second closure member position wherein the bumper closure member restricts air flow through the bumper opening to a lesser extent than the restriction on air flow when the bumper closure member is in the first closure member position;

a bumper closure member actuator operable to selectively shift the bumper closure member between first and second closure member positions;

a closure member actuator controller operable to control the bumper closure member actuator and thereby the position of the bumper closure member in response to at least one vehicle operating condition and at least one environmental condition;

an air regulator controller operable to control the air regulator actuator and thereby the position of the air regulator in response to at least one vehicle operating condition and at least one environmental condition in which the vehicle is being operated, the air regulator actuator controller and closure member actuator controller being a common controller; and

wherein the common controller is operable to selectively control the bumper closure member actuator independently of the air regulator actuator such that the bumper closure member can be positioned in a first position while the air flow regulator is in a second position.

23. A vehicle comprising:

a bumper with at least one bumper air flow opening passing through the bumper;

a bumper closure member supported by the vehicle and operable to shift between at least one first air flow restricting position wherein the bumper closure member at least partially restricts the air flow through the bumper opening and at least one second bumper open position, wherein when in a second position the bumper closure member restricts the flow of air through the bumper opening to a lesser extent than when in the first position;

a bumper closure member actuator operable to selectively shift the bumper closure member between first and second positions; and

a closure member actuator controller operable to control the bumper closure member actuator and thereby the position of the bumper closure member in response to at least one vehicle operating condition and at least one environmental condition, wherein the at least one vehicle operating condition comprises at least one of an air compressor output pressure and a turbo charger output temperature, wherein the bumper closure member actuator is controlled to selectively move the bumper closure member so as to limit the length of time that the bumper closure member is continuously maintained in any one position to a time that is less than a selected maximum time t_max.

24. An apparatus according to claim 23 wherein the at least one vehicle operating condition comprises the vehicle speed and wherein the at least one environmental condition comprises the ambient air temperature.

25. An apparatus according to claim 23 wherein the bumper closure member pivots upwardly to shift the bumper closure element to the first position from the second position.

26. An apparatus according to claim 23 wherein the bumper closure member comprises opposed first and second upper channels, the first channel being positioned along a first side of the bumper opening and the second channel being positioned along a second side of the bumper openings opposite to the first side of the bumper opening, respective third and fourth lower channels, the third channel being positioned along the first side of the bumper and the fourth channel being positioned along the second side of the bumper opening, the first and third channels being angled relative to one another with the first channel extending upwardly and rearwardly from a first location adjacent to an upper end of the third channel and the third channel extending downwardly and rearwardly from said first location, the second and fourth channels being angled relative to one another with the second channel extending upwardly and rearwardly from a second location adjacent to an upper end of the fourth channel and the fourth channel extending downwardly and rearwardly from said second location, the bumper closure member comprising a first upper portion coupled to the first channel such that motion of such first upper portion is guided by the first channel, the bumper closure member comprising a second lower portion coupled to the second channel such that motion of said second lower portion is guided by the second channel, the bumper closure member comprising a third upper portion opposite to said first upper portion and coupled to the third channel such that motion of the third upper portion is guided by the third channel, the bumper closure member comprising a fourth lower portion opposite to said second lower portion and coupled to the fourth channel such that motion of the fourth lower portion is guided by the fourth channel, and the bumper closure member actuator being coupled to the closure member for shifting the closure member between first and second positions with the channels guiding the motion of the closure member.

27. A vehicle comprising:

a bumper with at least one bumper air flow opening passing through the bumper;

a bumper closure member supported by the vehicle and operable to shift between at least one first air flow restricting position wherein the bumper closure member at least partially restricts the air flow through the bumper opening and at least one second bumper open position, wherein when in a second position the bumper closure member restricts the flow of air through the bumper opening to a lesser extent than when in the first position;

a bumper closure member actuator operable to selectively shift the bumper closure member between first and second positions;

a closure member actuator controller operable to control the bumper closure member actuator and thereby the position of the bumper closure member in response to at least one vehicle operating condition and at least one environmental condition; and

wherein the vehicle comprises a fan and wherein the closure member actuator controller is responsive to whether the fan is on or off with the bumper closure member being controlled to be in a second position for at least a majority of time that the engine fan is on.