DE4229945B4 - motor vehicle - Google Patents
motor vehicle Download PDFInfo
- Publication number
- DE4229945B4 DE4229945B4 DE4229945A DE4229945A DE4229945B4 DE 4229945 B4 DE4229945 B4 DE 4229945B4 DE 4229945 A DE4229945 A DE 4229945A DE 4229945 A DE4229945 A DE 4229945A DE 4229945 B4 DE4229945 B4 DE 4229945B4
- Authority
- DE
- Germany
- Prior art keywords
- flap
- motor vehicle
- frame
- vehicle according
- bottom plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D35/00—Vehicle bodies characterised by streamlining
- B62D35/02—Streamlining the undersurfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T5/00—Vehicle modifications to facilitate cooling of brakes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/88—Optimized components or subsystems, e.g. lighting, actively controlled glasses
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Body Structure For Vehicles (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
Kraftfahrzeug
mit einer Bodenplatte (1) im Frontbereich, die auf ihrer der Fahnbahn
zugewandten Unterseite in Fahrzeuglängsrichtung sich erstreckende Kanäle (14)
zur Zuführung
von Kühlluft
zu den Bremsen (3) aufweist, dadurch gekennzeichnet, daß in den
Kanälen (14)
schwenkbare Klappen (9) vorgesehen sind, die zwischen einer die
Zuführung
von Kühlluft
zu den Bremsen (3) gestattenden ersten Stellung (
Description
Die Erfindung betrifft ein Kraftfahrzeug entsprechend dem Oberbegriff des Anspruchs 1.The The invention relates to a motor vehicle according to the preamble of claim 1.
Ein derartiges Kraftfahrzeug ist in der DE-OS 35 42 376 dargestellt. Die dort vorgesehenen Kühlluftkanäle erhöhen den Luftwiderstand des Fahrzeuges, was inbesondere bei höheren Geschwindigkeiten zu einem erhöhten Kraftstoffverbrauch und eventuell zu einer höheren Geräuschentwicklung führt. Zur Behebung dieses Nachteils ist es bekannt (DE-OS 38 13 971, 38 13 972) die Kühlluftkanäle durch Klappen zu verschließen, wenn kein Kühlluftbedarf vorliegt. Diese Klappen sind in den als geschlossene Kanäle ausgebildeten Kühlluftkanälen angeordnet und bilden im geschlossenen Zustand einen Luftwiderstand, da sie von dem Fahrtwind beaufschlagt werden.One Such motor vehicle is shown in DE-OS 35 42 376. The cooling air ducts provided there increase the Air resistance of the vehicle, especially at higher speeds to an increased Fuel consumption and possibly leads to a higher noise. to Elimination of this disadvantage, it is known (DE-OS 38 13 971, 38 13 972) through the cooling air channels Closing flaps, if no cooling air requirement is present. These flaps are formed in the closed channels Cooling air channels arranged and form an air resistance in the closed state, as they be acted upon by the wind.
Der Erfindung liegt die Aufgabe zugrunde, ein Kraftfahrzeug der gattungsgemäßen Art zu schaffen, das bei nicht benötigter Bremsenkühlung einen besseren Luftwiderstandsbeiwert aufweist als die bekannten Kraftfahrzeuge.Of the Invention is based on the object, a motor vehicle of the generic type to create that when not needed brake cooling has a better drag coefficient than the known Motor vehicles.
Diese Aufgabe wird erfindungsgemäß durch die im Kennzeichen des Anspruchs 1 angegebenen Merkmale gelöst.These The object is achieved by the dissolved in the characterizing part of claim 1 features.
Dadurch, daß die Klappen in ihrer zweiten, die Kühlluftkanäle abdeckenden Stellung mit der Unterseite der Bodenplatte fluchten, wird jede Beeinträchtigung des Luftwiderstandsbeiwertes durch die Klappen vermieden.Thereby, that the Flaps in their second, the cooling air ducts covering Position with the bottom of the bottom plate is aligned, each impairment the drag coefficient through the flaps is avoided.
Vorzugsweise bildet die Klappe eine Wand des Kanals. Der Kanal kann dabei von der Klappe und von einem auf der Oberseite der Bodenplatte vorgesehenen Rahmen begrenzt sein, der eine entsprechende Öffnung in der Bodenplatte umgibt, eine sich in Richtung auf die Bremse vergrößernde senkrechte Erstreckung aufweist und an seinem der Bremse zugewandten rückwärtigen Rahmenteil mit einem Durchbruch versehen ist. Die Klappe hat dabei eine der Innenkontur des Rahmens entsprechende Form, ist innerhalb des Rahmens angeordnet und mit dem von der Bremse abgewandten vorderen Ende des Rahmens scharnierartig verbunden. Die Bodenplatte braucht also nur mit den vorher erwähnten Öffnungen versehen zu werden, da die Kühlluftkanäle nicht wie bei dem gattungsgemäßen Kraftfahrzeug durch Verformung der Bodenplatte hergestellt werden müssen.Preferably the flap forms a wall of the canal. The channel can from the flap and one provided on the top of the bottom plate Be limited frame, which surrounds a corresponding opening in the bottom plate, a vertical extent which increases in the direction of the brake has and at its brake facing the rear frame part with a Breakthrough is provided. The flap has one of the inner contour The frame corresponding shape is arranged within the frame and with the front end of the frame facing away from the brake hingedly connected. The bottom plate needs only with the previously mentioned openings to be provided because the cooling air ducts are not as in the generic motor vehicle by Deformation of the bottom plate must be made.
Die Klappe kann an ihrer der Bremse zugewandten Kante eine aufrecht stehende Wand aufweisen, welche den Durchbruch in dem rückwärtigen Rahmenteil in der zweiten Stellung der Klappe abdeckt. Diese Wand der Klappe kann an ihrer freien Kante mit einer Abkantung versehen sein, welche in der zweiten, geschlossenen Stellung der Klappe auf dem rückwärtigen Rahmenteil aufliegt und als Anschlag dient. Im offenen Zustand kann die Klappe mit ihren seitlichen Rändern an nach innen gerichteten Abkantungen des Rahmens anliegen.The Flap can be upright at its edge facing the brake standing wall which the breakthrough in the rear frame part covering in the second position of the flap. This wall of the flap can be provided at its free edge with a fold, which in the second, closed position of the flap on the rear frame part rests and serves as a stop. In the open state, the flap with their lateral edges abut inwardly directed bends of the frame.
Zum Verschwenken der Klappe kann ein Kurbelmechanismus vorgesehen sein, der quer zur Längserstreckung der Klappe verläuft und in seitlich am Rahmen vorgesehenen Lagerböcken und dazwischen mit seiner Kurbelkröpfung in einem an der Klappe vorgesehenen Lagerbock gelagert ist.To the Pivoting the flap may be provided a crank mechanism, the transverse to the longitudinal extent the flap runs and in laterally provided on the frame bearing blocks and in between with his crank throw is mounted in a provided on the flap bearing block.
Der Rahmen und die Klappe können eine Einbaueinheit bilden, die an der Oberseite der Bodenplatte befestigt ist.Of the Frame and the flap can form a mounting unit, which is at the top of the bottom plate is attached.
Die Ansteuerung der Klappen kann in bekannter Weise mittels eines Stellmotors bei Betätigung des Bremspedals und/oder bei Vorliegen eines Kühlluftbedarfs durch einen auf die Erwärmung der Bremsen ansprechenden Sensor erfolgen, wobei als Korrekturparameter auch die Fahrzeuggeschwindigkeit verwendet werden kann.The Control of the flaps can in a known manner by means of a servomotor on actuation of the brake pedal and / or in the presence of a cooling air requirement by a on the warming the brakes responsive sensor, where as correction parameters also the vehicle speed can be used.
Ein Ausführungsbeispiel der Erfindung wird im folgenden unter Bezugnahme auf die Zeichnungen beschrieben. Es zeigt:One embodiment The invention will be described below with reference to the drawings described. It shows:
Das
in
Die
Bodenplatte
Im
geöffneten
Zustand (
Die
Verschwenkung der Klappe zwischen den in
Im
Ausführungsbeispiel
schließt
sich an die Bodenplatte
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4229945A DE4229945B4 (en) | 1992-09-08 | 1992-09-08 | motor vehicle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4229945A DE4229945B4 (en) | 1992-09-08 | 1992-09-08 | motor vehicle |
Publications (2)
Publication Number | Publication Date |
---|---|
DE4229945A1 DE4229945A1 (en) | 1994-03-10 |
DE4229945B4 true DE4229945B4 (en) | 2007-01-04 |
Family
ID=6467460
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE4229945A Expired - Lifetime DE4229945B4 (en) | 1992-09-08 | 1992-09-08 | motor vehicle |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE4229945B4 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006046814A1 (en) * | 2006-10-02 | 2008-04-17 | Audi Ag | Under carriage covering for motor vehicle, has laminar base unit with lower side turning away from roadway, where lower side has beading/fins that are arranged adjacent to one another and are designed convex running in flow direction |
DE102007022298A1 (en) * | 2007-05-12 | 2008-11-13 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Underfloor cladding for motor vehicle has driven closing element for intake aperture to set aperture dependent on operating state and/or vehicle speed |
DE102007051496A1 (en) | 2007-10-27 | 2009-04-30 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Motor vehicle e.g. sports car, has channels aligning with floor space within front region of vehicle in position, where channels in another position supply cooling air to wheel brakes |
DE102012102445A1 (en) * | 2012-03-22 | 2013-09-26 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Motor vehicle with a device for cooling air supply |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4334009C1 (en) * | 1993-10-06 | 1995-01-26 | Daimler Benz Ag | Front end moulding for a motor car |
DE19838116A1 (en) * | 1998-08-21 | 2000-02-24 | Bayerische Motoren Werke Ag | Electronically controlled ventilation for disc brake, esp. for vehicle, has disc in path of flow channel; control unit forms signal for varying flow channel cross-section depending on parameters |
GB2357477B (en) * | 1999-12-20 | 2002-07-17 | Bayerische Motoren Werke Ag | Vehicle brake cooling |
FR2820390B1 (en) * | 2001-02-07 | 2003-08-08 | Plastic Omnium Cie | TECHNICAL FRONT OF MOTOR VEHICLE WITH LOW BEAM |
DE10350375A1 (en) * | 2003-10-28 | 2005-06-02 | Volkswagen Ag | Automobile drive shaft`s differential axle cooling device, has cooling air inlet flanked by diffuser that is moved between closed and open positions based on comparison between reference and axle temperature determined by sensors |
FR2959473A1 (en) * | 2010-04-29 | 2011-11-04 | Peugeot Citroen Automobiles Sa | Vehicle i.e. motor vehicle, has aerodynamic elements moved between active position in which aerodynamic elements extend next to opening and rest position shifted angularly with respect to active position |
DE102010037615B4 (en) | 2010-09-17 | 2023-07-20 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Air guiding device for cooler exhaust air guidance for a cooler unit |
DE102010055639A1 (en) | 2010-12-22 | 2012-06-28 | Volkswagen Ag | motor vehicle |
DE102011089074A1 (en) * | 2011-12-19 | 2013-06-20 | Bayerische Motoren Werke Aktiengesellschaft | Arrangement of an air guiding device on a component of a vehicle |
ITBO20120108A1 (en) | 2012-03-06 | 2013-09-07 | Ferrari Spa | ROAD VEHICLE PROVIDED WITH A COOLING DUCT FOR COOLING A BRAKE |
DE102012017600A1 (en) | 2012-09-06 | 2014-03-06 | Volkswagen Aktiengesellschaft | Method for operating actuating device for cooling wheel brake of motor vehicle, involves selecting cooling air flow to satisfactory cooling air demand by wheel brake |
FR2997912B1 (en) * | 2012-11-12 | 2016-04-01 | Renault Sas | AERODYNAMIC SCREEN LOWER FRONT SHIELD OF A MOTOR VEHICLE |
DE102013014447A1 (en) | 2013-08-30 | 2014-07-10 | Audi Ag | Air-guide device for motor vehicle, has flap that is arranged in direction of basic position of spring force so that air flow generates with increasing flow velocity and reinforcing negative pressure in road facing pressure zone |
DE102014213678A1 (en) * | 2014-07-15 | 2016-02-18 | Bayerische Motoren Werke Aktiengesellschaft | Vehicle with a spoiler |
FR3030417B1 (en) * | 2014-12-18 | 2018-03-23 | Renault S.A.S | DEVICE FOR COOLING A FUNCTIONAL ELEMENT OF A VEHICLE, AND VEHICLE EQUIPPED WITH SUCH A DEVICE |
US9623848B2 (en) * | 2015-08-18 | 2017-04-18 | Honda Motor Co., Ltd. | Vehicle brake cooling apparatus, and methods of use and manufacture thereof |
US20180290535A1 (en) * | 2017-04-07 | 2018-10-11 | GM Global Technology Operations LLC | Adjustable airflow assembly and a vehicle |
DE102017128791B4 (en) | 2017-12-05 | 2022-04-28 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Front diffuser for a vehicle |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3104603C2 (en) * | 1981-02-10 | 1985-09-19 | Messerschmitt-Bölkow-Blohm GmbH, 8012 Ottobrunn | Rail vehicle |
DE3542376A1 (en) * | 1985-11-30 | 1987-06-04 | Porsche Ag | MOTOR VEHICLE WITH A BENDING PART THAT IS NEAR A ROAD |
DE3613302A1 (en) * | 1986-04-19 | 1987-10-29 | Daimler Benz Ag | BOW COVERING FOR VEHICLES |
DE3813971A1 (en) * | 1987-05-08 | 1988-11-17 | Volkswagen Ag | Brake cooling device |
DE3813972A1 (en) * | 1987-05-08 | 1988-11-17 | Volkswagen Ag | Brake cooling device |
DE3834119A1 (en) * | 1988-10-07 | 1990-04-12 | Peter Kirschner | Brake cooling flaps and air ducting system for vehicles |
-
1992
- 1992-09-08 DE DE4229945A patent/DE4229945B4/en not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3104603C2 (en) * | 1981-02-10 | 1985-09-19 | Messerschmitt-Bölkow-Blohm GmbH, 8012 Ottobrunn | Rail vehicle |
DE3542376A1 (en) * | 1985-11-30 | 1987-06-04 | Porsche Ag | MOTOR VEHICLE WITH A BENDING PART THAT IS NEAR A ROAD |
DE3613302A1 (en) * | 1986-04-19 | 1987-10-29 | Daimler Benz Ag | BOW COVERING FOR VEHICLES |
DE3813971A1 (en) * | 1987-05-08 | 1988-11-17 | Volkswagen Ag | Brake cooling device |
DE3813972A1 (en) * | 1987-05-08 | 1988-11-17 | Volkswagen Ag | Brake cooling device |
DE3834119A1 (en) * | 1988-10-07 | 1990-04-12 | Peter Kirschner | Brake cooling flaps and air ducting system for vehicles |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006046814A1 (en) * | 2006-10-02 | 2008-04-17 | Audi Ag | Under carriage covering for motor vehicle, has laminar base unit with lower side turning away from roadway, where lower side has beading/fins that are arranged adjacent to one another and are designed convex running in flow direction |
DE102006046814B4 (en) * | 2006-10-02 | 2020-11-12 | Audi Ag | Underbody paneling for a motor vehicle |
DE102007022298A1 (en) * | 2007-05-12 | 2008-11-13 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Underfloor cladding for motor vehicle has driven closing element for intake aperture to set aperture dependent on operating state and/or vehicle speed |
DE102007022298B4 (en) | 2007-05-12 | 2023-04-06 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Underbody covering for a motor vehicle |
DE102007051496A1 (en) | 2007-10-27 | 2009-04-30 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Motor vehicle e.g. sports car, has channels aligning with floor space within front region of vehicle in position, where channels in another position supply cooling air to wheel brakes |
DE102012102445A1 (en) * | 2012-03-22 | 2013-09-26 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Motor vehicle with a device for cooling air supply |
Also Published As
Publication number | Publication date |
---|---|
DE4229945A1 (en) | 1994-03-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8110 | Request for examination paragraph 44 | ||
8120 | Willingness to grant licences paragraph 23 | ||
8364 | No opposition during term of opposition | ||
R071 | Expiry of right | ||
R071 | Expiry of right |