DE102011075339A1 - Suspension subframe for motor vehicle, has front transverse carrier and rear transverse carrier, where both carriers are connected to closed subframe over two longitudinal carriers - Google Patents
Suspension subframe for motor vehicle, has front transverse carrier and rear transverse carrier, where both carriers are connected to closed subframe over two longitudinal carriers Download PDFInfo
- Publication number
- DE102011075339A1 DE102011075339A1 DE201110075339 DE102011075339A DE102011075339A1 DE 102011075339 A1 DE102011075339 A1 DE 102011075339A1 DE 201110075339 DE201110075339 DE 201110075339 DE 102011075339 A DE102011075339 A DE 102011075339A DE 102011075339 A1 DE102011075339 A1 DE 102011075339A1
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- DE
- Germany
- Prior art keywords
- subframe
- cross member
- motor vehicle
- carriers
- subframe according
- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/11—Understructures, i.e. chassis frame on which a vehicle body may be mounted with resilient means for suspension, e.g. of wheels or engine; sub-frames for mounting engine or suspensions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/15—Understructures, i.e. chassis frame on which a vehicle body may be mounted having impact absorbing means, e.g. a frame designed to permanently or temporarily change shape or dimension upon impact with another body
- B62D21/152—Front or rear frames
- B62D21/155—Sub-frames or underguards
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
Description
Die Erfindung betrifft einen vorderen Fahrschemel für ein Kraftfahrzeug nach dem Oberbegriff des ersten Anspruchs und bezweckt die Ausbildung eines solchen Fahrschemels als crashoptimierter Vorderachsträger, umfassend einen vorderen Querträger und einen hinteren Querträger, die über zwei Längsträger zu einem geschlossenen Hilfsrahmen verbunden sind, welcher von unten an einem Vorderwagenmodul einer Fahrzeugkarosserie befestigt wird.The invention relates to a front subframe for a motor vehicle according to the preamble of the first claim and the purpose of the formation of such a subframe as a crash-optimized front axle, comprising a front cross member and a rear cross member, which are connected via two longitudinal members to a closed subframe, which from below a front end module of a vehicle body is fastened.
Ein derartiger Fahrschemel, der auch als Hilfsrahmen bezeichnet wird, ist aus der
Die
Der Erfindung liegt die Aufgabe zugrunde, einen Fahrschemel der eingangs genannten Art so zu gestalten, dass dieser im Falle einer unfallbedingten Verformung bzw. im Falle eines Fahrzeugcrashs ein möglichst hohes Energieabsorptionsvermögen besitzt.The invention has for its object to make a subframe of the type mentioned so that it has the highest possible energy absorption capacity in the event of an accidental deformation or in the event of a vehicle crash.
Die Aufgabe wird durch die Merkmale des ersten Anspruchs gelöst. Bevorzugte Ausgestaltungen der Erfindung beschreiben die abhängigen Ansprüche.The object is solved by the features of the first claim. Preferred embodiments of the invention describe the dependent claims.
Nach der Erfindung ist ein Fahrschemel für ein Kraftfahrzeug, umfassend einen vorderen Querträger und einen hinteren Querträger, die über zwei Längsträger zu einem geschlossenen Hilfsrahmen verbunden sind, dadurch gekennzeichnet, dass die Längsträger zwischen dem vorderen und dem hinteren Querträger gekrümmt und so mit diesen verbunden sind, dass sie von der Krümmungsstelle an, in Fahrtrichtung des Kraftfahrzeugs gesehen, nach vorne außen verlaufen, so dass sich ihr Abstand voneinander in seitlicher Richtung nach vorne vergrößert.According to the invention, a subframe for a motor vehicle, comprising a front cross member and a rear cross member, which are connected via two side members to a closed subframe, characterized in that the side members between the front and the rear cross member are curved and thus connected thereto in that, viewed from the point of curvature, they extend forwards, viewed in the direction of travel of the motor vehicle, so that their distance from one another increases in a laterally forward direction.
Das hat den Vorteil, dass im Falle eines frontalen Aufpralls des Kraftfahrzeuges, bei dieser Konstruktionsanordnung die Verformung durch die Krümmungsstelle an den Längsträgern vorgegeben ist und ein optimaler Energieabbau durch die Längsträger erfolgt, die durch den Seitenknick zusätzliche Energie definiert abbauen, da die Profile während des Crashverlaufs nicht abreißen. Weiter kommt noch vorteilhaft hinzu, dass durch ein Verbleiben des gesamten Schweißverbundes des vorderen Trägerbereichs die vorderen Fahrzeugräder mit der Achse verbunden bleiben und sich bei ihrer Rückwärtsbewegung nach hinten gegen die Radhäuser abstützen.This has the advantage that in the case of a frontal impact of the motor vehicle, in this design arrangement, the deformation is predetermined by the curvature of the longitudinal beams and an optimal energy reduction by the side members takes place, which defined by the side bend reduce additional energy because the profiles during the Do not tear off crash course. Next comes even more advantageous that remain by remaining the entire welded joint of the front support portion, the front vehicle wheels with the axle and are supported in their backward movement towards the rear against the wheel arches.
Weitere bevorzugte Ausführungen der Erfindung sind dadurch gekennzeichnet, dass links und rechts jeweils ein nach vorne, oben und seitlich überstehendes Eckteil, insbesondere aus einem Leichtmetall-Strangpressprofil, vorgesehen ist, das am jeweiligen Längsträger und/oder am vorderen Querträger angebracht ist. Durch die Lage der überstehenden Eckteile wird der Crashverlauf anfänglich bestimmt und es findet ein seitliches Wegschwenken der Eckprofile statt. Dabei werden die Längsträger nach unten gedrückt und ihre Krümmung nach außen wird verstärkt, was vorteilhafterweise viel Energie abbaut und den Bauraum über dem Fahrschemel nach oben nicht verkleinert.Further preferred embodiments of the invention are characterized in that on the left and right in each case a forward, top and laterally projecting corner part, in particular of a light metal extruded profile is provided, which is attached to the respective side member and / or on the front cross member. Due to the position of the protruding corner parts of the crash course is initially determined and there is a lateral pivoting away the Eckprofile instead. The side members are pressed down and their curvature is amplified outwards, which advantageously dissipates a lot of energy and does not reduce the space above the subframe upwards.
Wenn die Quer- und/oder Längsträger und/oder die Eckteile aus Profilteilen aus einer schweißbaren Leichtmetalllegierung bestehen und durch Schweißen miteinander verbunden sind begünstigt dies sowohl den Leichtbau als auch den Energieabbau beim Crash. So können die Längsträger vorteilhafterweise nach außen gebogene, gezogene Strangpressrohre und die Profilteile der Querträger hohlprofilartig, insbesondere zu einem Kastenprofil aus L-förmigen Blechprofilen, zusammen gebaut sein. Dabei ist es für die Gesamtkonstruktion günstig, wenn an den Quer- und/oder Längsträgern Anlageflächen für Radführungslenker und/oder Motorträger und/oder Motorlager und/oder für eine direkte oder indirekte Anbindung an einen Fahrzeug-Aufbau vorgesehen sind und wenn jedes Eckteil eine Aufnahmegabel für einen Radlenker, insbesondere für eine Zugstrebe, besitzt. Außerdem wird der Zusammenbau optimiert, wenn der Fahrschemel von unten an ein Vorderwagenmodul einer Kraftfahrzeugkarosserie angefügt und mit diesem verbunden werden kann.If the transverse and / or longitudinal members and / or the corner parts of profile parts consist of a weldable light metal alloy and are joined together by welding, this promotes both the lightweight construction and the energy reduction in the crash. Thus, the longitudinal beams advantageously outwardly curved, drawn extruded tubes and the profile parts of the cross member hollow profile, in particular to a box section of L-shaped sheet metal profiles, be built together. It is favorable for the overall construction, if at the transverse and / or longitudinal beams contact surfaces for Radführungslenker and / or engine mounts and / or engine mounts and / or for a direct or indirect connection to a vehicle body are provided and if each corner part has a receiving fork for a Radlenker, in particular for a tie rod. In addition, the assembly is optimized when the subframe can be attached from below to a front end module of a motor vehicle body and connected to it.
Ein bevorzugtes Ausführungsbeispiel der Erfindung ist in der nachfolgenden Beschreibung und der zugehörigen Zeichnung näher dargestellt. Dazu zeigt die einzige Figur eine räumliche Draufsicht auf einen erfindungsgemäßen Fahrschemel mit einem in Vorwärtsfahrtrichtung zeigenden Pfeil F.A preferred embodiment of the invention is illustrated in more detail in the following description and the accompanying drawings. For this purpose, the single FIGURE shows a spatial plan view of a subframe according to the invention with an arrow pointing in the forward direction arrow F.
Das Ausführungsbeispiel nach der Figur zeigt einen Fahrschemel für ein Kraftfahrzeug, der aus einem vorderen Querträger
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- DE 10235110 A1 [0002] DE 10235110 A1 [0002]
- EP 1187753 B1 [0003] EP 1187753 B1 [0003]
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201110075339 DE102011075339A1 (en) | 2011-05-05 | 2011-05-05 | Suspension subframe for motor vehicle, has front transverse carrier and rear transverse carrier, where both carriers are connected to closed subframe over two longitudinal carriers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201110075339 DE102011075339A1 (en) | 2011-05-05 | 2011-05-05 | Suspension subframe for motor vehicle, has front transverse carrier and rear transverse carrier, where both carriers are connected to closed subframe over two longitudinal carriers |
Publications (1)
Publication Number | Publication Date |
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DE102011075339A1 true DE102011075339A1 (en) | 2012-11-08 |
Family
ID=47019418
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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DE201110075339 Withdrawn DE102011075339A1 (en) | 2011-05-05 | 2011-05-05 | Suspension subframe for motor vehicle, has front transverse carrier and rear transverse carrier, where both carriers are connected to closed subframe over two longitudinal carriers |
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DE (1) | DE102011075339A1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3046590A1 (en) * | 2016-01-11 | 2017-07-14 | Peugeot Citroen Automobiles Sa | FRONT CRADLE OF VEHICLE |
CN109159820A (en) * | 2018-08-24 | 2019-01-08 | 安徽江淮汽车集团股份有限公司 | vehicle frame |
CN110510001A (en) * | 2019-08-30 | 2019-11-29 | 泰牛汽车技术(苏州)有限公司 | Automobile multi link type Rear secondary frame for vehicle |
CN114506389A (en) * | 2020-11-16 | 2022-05-17 | 北汽福田汽车股份有限公司 | Frame cross member and vehicle |
CN115230815A (en) * | 2022-07-29 | 2022-10-25 | 重庆长安汽车股份有限公司 | Frame type auxiliary frame integrating body part longitudinal beams and vehicle |
CN115352527A (en) * | 2022-09-16 | 2022-11-18 | 岚图汽车科技有限公司 | Rear auxiliary frame and vehicle thereof |
Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3912501A1 (en) * | 1989-04-17 | 1990-10-18 | Daimler Benz Ag | ARRANGEMENT OF A REAR AXLE ON THE BOTTOM OF THE BODY OF A PERSONAL VEHICLE |
DE4003520C1 (en) * | 1990-02-06 | 1991-03-28 | Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De | Vehicle body sub-frame arrangement - incorporates rubber bearings for struts |
WO1996032312A1 (en) * | 1995-04-14 | 1996-10-17 | Gesellschaft Für Innenhochdruckverfahren Mbh & Co. Kg | Suspension arm arrangement |
DE19909945C1 (en) * | 1999-03-06 | 2000-10-26 | Porsche Ag | Subframe for a motor vehicle |
DE10109636A1 (en) * | 2001-03-01 | 2002-09-12 | Magna Ihv Ges Fuer Innenhochdr | Subframe for rear axle of motor vehicle with independent wheel suspension has longitudinal members with ends connected to vehicle, front and rear cross members connecting longitudinal members, and tubular reinforcing members |
DE69806460T2 (en) * | 1997-12-20 | 2003-01-16 | Bayerische Motoren Werke Ag | Subframes for vehicles |
DE10235110A1 (en) | 2002-08-01 | 2004-02-19 | Audi Ag | Subframes for motor vehicles |
EP1187753B1 (en) | 1999-05-22 | 2004-04-21 | Volkswagen Aktiengesellschaft | Full auxiliary chassis |
DE102004057176A1 (en) * | 2004-08-27 | 2006-03-16 | Audi Ag | Device for fastening a supported component to a load-bearing component of a motor vehicle body |
DE102006002750A1 (en) * | 2006-01-20 | 2007-09-20 | Dr.Ing.H.C. F. Porsche Ag | Motor vehicle e.g. passenger car, has deformation region provided in connection zone when seen in driving direction, where connecting unit is adjusted in deformation region during collision of vehicle with object |
DE102007002609B3 (en) * | 2007-01-12 | 2008-01-10 | Benteler Automobiltechnik Gmbh | Motor vehicle has stiffening struts, at least one with two sheet elements, and at least one tension belt joining them, whereby opposing sheet elements of a strut are arranged in opposite directions in a plane |
DE102008009292A1 (en) * | 2008-02-15 | 2009-08-20 | Volkswagen Ag | Reinforcing structure for longitudinal carrier of supporting frame in motor vehicle, has reinforcing element provided with predominant tubular cross-section and firmly connected with adjacent wall of components by material engagement |
-
2011
- 2011-05-05 DE DE201110075339 patent/DE102011075339A1/en not_active Withdrawn
Patent Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3912501A1 (en) * | 1989-04-17 | 1990-10-18 | Daimler Benz Ag | ARRANGEMENT OF A REAR AXLE ON THE BOTTOM OF THE BODY OF A PERSONAL VEHICLE |
DE4003520C1 (en) * | 1990-02-06 | 1991-03-28 | Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De | Vehicle body sub-frame arrangement - incorporates rubber bearings for struts |
WO1996032312A1 (en) * | 1995-04-14 | 1996-10-17 | Gesellschaft Für Innenhochdruckverfahren Mbh & Co. Kg | Suspension arm arrangement |
DE69806460T2 (en) * | 1997-12-20 | 2003-01-16 | Bayerische Motoren Werke Ag | Subframes for vehicles |
DE19909945C1 (en) * | 1999-03-06 | 2000-10-26 | Porsche Ag | Subframe for a motor vehicle |
EP1187753B1 (en) | 1999-05-22 | 2004-04-21 | Volkswagen Aktiengesellschaft | Full auxiliary chassis |
DE10109636A1 (en) * | 2001-03-01 | 2002-09-12 | Magna Ihv Ges Fuer Innenhochdr | Subframe for rear axle of motor vehicle with independent wheel suspension has longitudinal members with ends connected to vehicle, front and rear cross members connecting longitudinal members, and tubular reinforcing members |
DE10235110A1 (en) | 2002-08-01 | 2004-02-19 | Audi Ag | Subframes for motor vehicles |
DE102004057176A1 (en) * | 2004-08-27 | 2006-03-16 | Audi Ag | Device for fastening a supported component to a load-bearing component of a motor vehicle body |
DE102006002750A1 (en) * | 2006-01-20 | 2007-09-20 | Dr.Ing.H.C. F. Porsche Ag | Motor vehicle e.g. passenger car, has deformation region provided in connection zone when seen in driving direction, where connecting unit is adjusted in deformation region during collision of vehicle with object |
DE102007002609B3 (en) * | 2007-01-12 | 2008-01-10 | Benteler Automobiltechnik Gmbh | Motor vehicle has stiffening struts, at least one with two sheet elements, and at least one tension belt joining them, whereby opposing sheet elements of a strut are arranged in opposite directions in a plane |
DE102008009292A1 (en) * | 2008-02-15 | 2009-08-20 | Volkswagen Ag | Reinforcing structure for longitudinal carrier of supporting frame in motor vehicle, has reinforcing element provided with predominant tubular cross-section and firmly connected with adjacent wall of components by material engagement |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3046590A1 (en) * | 2016-01-11 | 2017-07-14 | Peugeot Citroen Automobiles Sa | FRONT CRADLE OF VEHICLE |
CN109159820A (en) * | 2018-08-24 | 2019-01-08 | 安徽江淮汽车集团股份有限公司 | vehicle frame |
CN110510001A (en) * | 2019-08-30 | 2019-11-29 | 泰牛汽车技术(苏州)有限公司 | Automobile multi link type Rear secondary frame for vehicle |
CN114506389A (en) * | 2020-11-16 | 2022-05-17 | 北汽福田汽车股份有限公司 | Frame cross member and vehicle |
CN115230815A (en) * | 2022-07-29 | 2022-10-25 | 重庆长安汽车股份有限公司 | Frame type auxiliary frame integrating body part longitudinal beams and vehicle |
CN115352527A (en) * | 2022-09-16 | 2022-11-18 | 岚图汽车科技有限公司 | Rear auxiliary frame and vehicle thereof |
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R163 | Identified publications notified | ||
R012 | Request for examination validly filed | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |