DE10252135A1 - Individual suspension for wheel of vehicle, comprising main arms and carrying bars designed with elliptical cross section - Google Patents

Individual suspension for wheel of vehicle, comprising main arms and carrying bars designed with elliptical cross section Download PDF

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Publication number
DE10252135A1
DE10252135A1 DE2002152135 DE10252135A DE10252135A1 DE 10252135 A1 DE10252135 A1 DE 10252135A1 DE 2002152135 DE2002152135 DE 2002152135 DE 10252135 A DE10252135 A DE 10252135A DE 10252135 A1 DE10252135 A1 DE 10252135A1
Authority
DE
Germany
Prior art keywords
section
elliptical cross
wheel
vehicle
wishbones
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.)
Withdrawn
Application number
DE2002152135
Other languages
German (de)
Inventor
Klaus Gell
Alexander Dipl.-Ing. Geier
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZF Friedrichshafen AG
Original Assignee
ZF Friedrichshafen AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ZF Friedrichshafen AG filed Critical ZF Friedrichshafen AG
Priority to DE2002152135 priority Critical patent/DE10252135A1/en
Publication of DE10252135A1 publication Critical patent/DE10252135A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G3/00—Resilient suspensions for a single wheel
    • B60G3/18—Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram
    • B60G3/20—Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram all arms being rigid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G7/00—Pivoted suspension arms; Accessories thereof
    • B60G7/001—Suspension arms, e.g. constructional features
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2200/00—Indexing codes relating to suspension types
    • B60G2200/10—Independent suspensions
    • B60G2200/14—Independent suspensions with lateral arms
    • B60G2200/144—Independent suspensions with lateral arms with two lateral arms forming a parallelogram
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2200/00—Indexing codes relating to suspension types
    • B60G2200/40—Indexing codes relating to the wheels in the suspensions
    • B60G2200/44—Indexing codes relating to the wheels in the suspensions steerable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
    • B60G2202/10—Type of spring
    • B60G2202/13—Torsion spring
    • B60G2202/135—Stabiliser bar and/or tube
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
    • B60G2202/10—Type of spring
    • B60G2202/15—Fluid spring
    • B60G2202/152—Pneumatic spring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/10—Mounting of suspension elements
    • B60G2204/14—Mounting of suspension arms
    • B60G2204/148—Mounting of suspension arms on the unsprung part of the vehicle, e.g. wheel knuckle or rigid axle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/10—Constructional features of arms
    • B60G2206/12—Constructional features of arms with two attachment points on the sprung part of the vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/10—Constructional features of arms
    • B60G2206/124—Constructional features of arms the arm having triangular or Y-shape, e.g. wishbone
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/80—Manufacturing procedures
    • B60G2206/81—Shaping
    • B60G2206/8101—Shaping by casting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/80—Manufacturing procedures
    • B60G2206/82—Joining
    • B60G2206/8201—Joining by welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2300/00—Indexing codes relating to the type of vehicle
    • B60G2300/14—Buses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2300/00—Indexing codes relating to the type of vehicle
    • B60G2300/38—Low or lowerable bed vehicles

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

The longitudinal components of an individual suspension of the wheel of a vehicle, in particular the transverse control arm and the longitudinal control arm are normally made of die cast profiles or are welded together using individual steel elements. The new versions of those items are designed with elliptical cross sections in order to reduce their weight. The stress acting on the parts is also more evenly distributed.

Description

Die vorliegende Erfindung betrifft eine Achsaufhängung in Einzelradaufhängung für Kraftfahrzeuge, insbesondere für NKW's gemäß dem Oberbegriff des Patentanspruchs 1.The present invention relates to an axle suspension in independent suspension for motor vehicles, especially for Commercial vehicles according to the generic term of claim 1.

Bei herkömmlichen Achsaufhängungen für NKW in Einzelradaufhängung wie beispielsweise einer Achsaufhängung nach der DE 100 61 408 A1 werden die Achs-Querlenker und Achs-Längslenker üblicherweise aus Blechkastenprofilen bzw. Tiefziehteilen, Guss- oder Schmiedeteilen, oder aus zusammengeschweißten Formstählen ausgebildet. Hierbei sind die Bauteilquerschnittsformen aus Rohr-, 4kt-, T- oder I-Profilen ausgebildet, so dass der Nachteil entsteht, dass die Bauteile schwer sind. Zudem sind die Widerstandsmomente nicht immer an die Belastung angepasst.In conventional axle suspensions for commercial vehicles in independent suspension, such as an axle suspension according to the DE 100 61 408 A1 the wishbones and trailing arms are usually formed from sheet metal box sections or deep-drawn parts, cast or forged parts, or from welded molded steels. Here, the component cross-sectional shapes are formed from tubular, square, T or I profiles, so that the disadvantage arises that the components are heavy. In addition, the resistance moments are not always adapted to the load.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, eine Achsaufhängung für Kraftfahrzeuge, insbesondere für NKW anzugeben, welche die erwähnten Nachteile des Standes der Technik vermeidet. Insbesondere soll eine homogene Bauteilbeanspruchung bei gleichzeitiger Gewichtseinsparung ermöglicht werden. Des weiteren soll die erfindungsgemäße Achsaufhängung kostengünstig herstellbar sein.The present invention lies the task of an axle suspension for motor vehicles, in particular for commercial vehicles indicate which of the mentioned Avoids disadvantages of the prior art. In particular, a homogeneous component stress while saving weight allows become. Furthermore, the axle suspension according to the invention should be inexpensive to manufacture.

Diese Aufgabe wird durch die Merkmale des Patentanspruchs 1 gelöst. Weitere Ausgestaltungen und Vorteile gehen aus den Unteransprüchen hervor.This task is due to the characteristics of claim 1 solved. Further configurations and advantages emerge from the subclaims.

Demnach wird vorgeschlagen, die Achsaufhängung derart zu gestalten- dass zumindest die hauptbeanspruchten Lenker arme und -streben der Quer- und Längslenker in jedem Bereich einen Ellipsenquerschnitt aufweisen. Dadurch entsteht der Vorteil, dass aufgrund der weichen Übergänge in die verschiedenen Ellipsenquerschnittsgrößen keine schroffen Körperübergänge bzw. Steifigkeitssprünge und somit keine Spannungsspitzen entstehen.Accordingly, it is proposed that the axle suspension be such to design - that at least the main stressed arms and arms - struts of the wishbones and trailing arms have an ellipse cross section in each area. This creates the advantage that none due to the smooth transitions into the different ellipse cross-section sizes rugged body transitions or in stiffness and therefore no voltage peaks arise.

Des weiteren wird durch die Anpassung der Höhe und Breite der Ellipsenquerschnitte an die vorliegende Belastung eine gleichmäßige Beanspruchung über das gesamte Bauteil erzielt, wodurch keine zusätzlichen Versteifungen bzw. Verstärkungen notwendig sind.Furthermore, through the adjustment the height and width of the ellipse cross sections to the present load an even load over the entire component is achieved, whereby no additional stiffening or Reinforcements necessary are.

Dies bedeutet auch, dass eine signifikante Gewichtseinsparung bei gleichzeitiger einfacherer Herstellung erzielt wird. Außerdem wird durch die erfindungsgemäße ellipsenförmige Ausbildung der Bauteilquerschnitte die Aerodynamik verbessert.This also means significant weight savings is achieved with simpler production at the same time. Besides, will by the elliptical design according to the invention the component cross-sections improves the aerodynamics.

Die Erfindung wird im folgenden anhand der beigefügten Figuren beispielhaft näher erläutert. Es stellen dar:The invention is illustrated below the attached Figures closer by way of example explained. They represent:

1: Eine Darstellung einer Achsaufhängung nach dem Stand der Technik; 1 : A representation of an axle suspension according to the prior art;

2: Eine Darstellung einer Achsaufhängung gemäß der vorliegenden Erfindung; 2 : An illustration of an axle suspension according to the present invention;

3: Eine Darstellung eines Querlenkers aus 2; und 3 : A representation of a wishbone 2 ; and

4: Eine Draufsicht eines Querlenkers gemäß der Erfindung mit den entsprechenden Querschnitten an einzelnen Punkten. 4 : A top view of a wishbone according to the invention with the corresponding cross sections at individual points.

Wie im Rahmen der 1 gezeigt, sind die Quer- und Längslenker 1 einer nach dem Stand der Technik ausgebildeten Einzelradaufhängung für Kraftfahrzeuge vorzugsweise als Gussteil mit einer Querschnittsform ausgebildet; dies resultiert in Vertiefungen, Ecken und Kanten, welche, wie bereits erläutert, das Gewicht erhöhen und keine gleichmäßige Beanspruchung gewährleisten.As part of the 1 shown are the wishbones and trailing arms 1 an independent wheel suspension for motor vehicles designed according to the prior art, preferably designed as a cast part with a cross-sectional shape; this results in depressions, corners and edges, which, as already explained, increase the weight and do not guarantee uniform stress.

Gemäß der Erfindung werden die Quer- und Längslenker 1 einer Einzelradaufhängung für Kraftfahrzeuge derart ausgebildet, dass zumindest die hauptbeanspruchten Lenkerarme und -streben der Quer- und Längslenker 1 in jedem Bereich einen Ellipsenquerschnitt aufweisen. Dies wird in 2 veranschaulicht, welche eine erfindungsgemäße Einzelradaufhängung mit Ellipsenquerschnitt der Lenkerarme und -streben der Quer- und Längslenker 1 zeigt.According to the invention, the wishbones and trailing arms 1 an independent wheel suspension for motor vehicles designed such that at least the main arm and struts of the wishbones and trailing arms 1 have an ellipse cross section in each area. This is in 2 illustrates which an independent wheel suspension according to the invention with elliptical cross-section of the handlebar arms and struts of the wishbones and trailing arms 1 shows.

Gemäß der Erfindung wird die Höhe und Breite der Ellipsenquerschnitte entlang der Quer- und Längslenker 1 an die vorliegende Belastung angepasst, so dass eine gleichmäßige Beanspruchung über das gesamte Bauteil erzielbar ist. Dies wird im Rahmen der 3 und 4 gezeigt. In 4 ist eine Draufsicht eines erfindungsgemäßen Querlenkers 1 gezeigt; zudem zeigen die Detailbilder 12-12, 11-11, 10-10, 9-9, 8-8, 7-7, 6-6, 5-5, 4-4, 3-3, 2-2 und 1-1 Schnitte entlang der Linien 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2 bzw. 1, woraus zu entnehmen ist, dass die ellipsenförmige Querschnitte der Bauteile in Abhängigkeit von der Belastung unterschiedlich dimensioniert sind.According to the invention, the height and width of the ellipse cross sections along the transverse and trailing arms 1 adapted to the existing load so that a uniform load can be achieved over the entire component. This will be done within the 3 and 4 shown. In 4 is a top view of a control arm according to the invention 1 shown; also show the detailed pictures 12-12 . 11-11 . 10-10 . 9-9 . 8-8 . 7-7 . 6-6 . 5-5 . 4-4 . 3-3 . 2-2 and 1-1 Cuts along the lines 12 . 11 . 10 . 9 . 8th . 7 . 6 . 5 . 4 . 3 . 2 or 1, from which it can be seen that the elliptical cross sections of the components are dimensioned differently depending on the load.

Claims (2)

Einzelradaufhängung für Kraftfahrzeuge, insbesondere für NKW's, umfassend Achsquerlenker und Achslängslenker, dadurch gekennzeichnet , dass zumindest die hauptbeanspruchten Lenkerarme und -streben der Quer und Längslenker in jedem Bereich einen Ellipsenquerschnitt aufweisen.Independent wheel suspension for motor vehicles, in particular for commercial vehicles, comprising wishbones and trailing arms, characterized in that at least the main arm and struts of the wishbones and trailing arms have an elliptical cross section in each area. Einzelradaufhängung nach Anspruch 2, dadurch gekennzeichnet, dass Höhe und Breite der Ellipsenquerschnitte entlang der Lenkerarme und -streben der Quer- und Längslenker an die vorliegende Belastung angepasst sind, so dass eine gleichmäßige Beanspruchung erzielt wird.independent suspension according to claim 2, characterized in that the height and width of the ellipse cross sections along the handlebar arms and struts of the wishbones and trailing arms are adapted to the existing load, so that an even load is achieved.
DE2002152135 2002-11-09 2002-11-09 Individual suspension for wheel of vehicle, comprising main arms and carrying bars designed with elliptical cross section Withdrawn DE10252135A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE2002152135 DE10252135A1 (en) 2002-11-09 2002-11-09 Individual suspension for wheel of vehicle, comprising main arms and carrying bars designed with elliptical cross section

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007047792A1 (en) 2007-11-15 2009-05-20 Zf Friedrichshafen Ag Independent wheel suspension has axle journal arranged to rotate around axis of rotation, where axle journal is supported on spring bracket, which is connected with vehicle frame over damper and pneumatic spring or over spring damper module
DE102007047791A1 (en) 2007-11-15 2009-05-20 Zf Friedrichshafen Ag independent suspension
DE102007047787A1 (en) 2007-11-15 2009-05-20 Zf Friedrichshafen Ag independent suspension
DE102007047786A1 (en) 2007-11-15 2009-05-20 Zf Friedrichshafen Ag Independent wheel suspension for controllable vehicle wheel, has steering stub axle arranged around axis of rotation in pivoting manner, where bearing flange of wheel body is pivotably supported in steering stub axle
DE102007047789A1 (en) 2007-11-15 2009-05-20 Zf Friedrichshafen Ag Individual wheel suspension for vehicle, has steering knuckle, which is pivotally disposed around pivot axis, and steering knuckle is supported on spring support connected to vehicle chassis by shock absorber
DE102007047793A1 (en) 2007-11-15 2009-05-20 Zf Friedrichshafen Ag Arrangement for fastening brake device, has wheel carrier with bore holes for receiving depth bolts, where one part of depth bolt serves fastening of brake device and fastening of steering or tracking lever
DE102007047788A1 (en) 2007-11-15 2009-05-20 Zf Friedrichshafen Ag independent suspension
EP1932691B1 (en) * 2006-12-15 2011-09-07 Iveco France S.A. Suspension system for steering wheels of transport vehicle of the bus type, and corresponding transport vehicle
EP3141408A1 (en) * 2015-09-10 2017-03-15 Volkswagen Aktiengesellschaft Wheel-guiding strut for a motor vehicle

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4441220A1 (en) * 1994-11-19 1996-05-23 Lemfoerder Metallwaren Ag Pendulum support or the like for the articulated connection of chassis parts in motor vehicles
DE19802685A1 (en) * 1998-01-24 1999-07-29 Benteler Werke Ag Process for producing an elongated hollow body and its use
DE19961678A1 (en) * 1999-12-21 2001-06-28 Magna Ihv Ges Fuer Innenhochdr Axle rocker arm for vehicle, with hollow body forming arc at end facing rocking head
DE10061408A1 (en) * 2000-12-09 2002-06-13 Zahnradfabrik Friedrichshafen Steering device for steerable front wheels

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4441220A1 (en) * 1994-11-19 1996-05-23 Lemfoerder Metallwaren Ag Pendulum support or the like for the articulated connection of chassis parts in motor vehicles
DE19802685A1 (en) * 1998-01-24 1999-07-29 Benteler Werke Ag Process for producing an elongated hollow body and its use
DE19961678A1 (en) * 1999-12-21 2001-06-28 Magna Ihv Ges Fuer Innenhochdr Axle rocker arm for vehicle, with hollow body forming arc at end facing rocking head
DE10061408A1 (en) * 2000-12-09 2002-06-13 Zahnradfabrik Friedrichshafen Steering device for steerable front wheels

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1932691B1 (en) * 2006-12-15 2011-09-07 Iveco France S.A. Suspension system for steering wheels of transport vehicle of the bus type, and corresponding transport vehicle
DE102007047792A1 (en) 2007-11-15 2009-05-20 Zf Friedrichshafen Ag Independent wheel suspension has axle journal arranged to rotate around axis of rotation, where axle journal is supported on spring bracket, which is connected with vehicle frame over damper and pneumatic spring or over spring damper module
DE102007047791A1 (en) 2007-11-15 2009-05-20 Zf Friedrichshafen Ag independent suspension
DE102007047787A1 (en) 2007-11-15 2009-05-20 Zf Friedrichshafen Ag independent suspension
DE102007047786A1 (en) 2007-11-15 2009-05-20 Zf Friedrichshafen Ag Independent wheel suspension for controllable vehicle wheel, has steering stub axle arranged around axis of rotation in pivoting manner, where bearing flange of wheel body is pivotably supported in steering stub axle
DE102007047789A1 (en) 2007-11-15 2009-05-20 Zf Friedrichshafen Ag Individual wheel suspension for vehicle, has steering knuckle, which is pivotally disposed around pivot axis, and steering knuckle is supported on spring support connected to vehicle chassis by shock absorber
DE102007047793A1 (en) 2007-11-15 2009-05-20 Zf Friedrichshafen Ag Arrangement for fastening brake device, has wheel carrier with bore holes for receiving depth bolts, where one part of depth bolt serves fastening of brake device and fastening of steering or tracking lever
DE102007047788A1 (en) 2007-11-15 2009-05-20 Zf Friedrichshafen Ag independent suspension
EP2246204A1 (en) 2007-11-15 2010-11-03 ZF Friedrichshafen AG Independent wheel suspension
US8205896B2 (en) 2007-11-15 2012-06-26 Zf Friedrichshafen Ag Independent wheel suspension
EP3141408A1 (en) * 2015-09-10 2017-03-15 Volkswagen Aktiengesellschaft Wheel-guiding strut for a motor vehicle

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Effective date: 20120601