DE9017845U1 - Rigid axle with hydropneumatic suspension struts in commercial vehicles - Google Patents

Rigid axle with hydropneumatic suspension struts in commercial vehicles

Info

Publication number
DE9017845U1
DE9017845U1 DE9017845U DE9017845U DE9017845U1 DE 9017845 U1 DE9017845 U1 DE 9017845U1 DE 9017845 U DE9017845 U DE 9017845U DE 9017845 U DE9017845 U DE 9017845U DE 9017845 U1 DE9017845 U1 DE 9017845U1
Authority
DE
Germany
Prior art keywords
rigid axle
spring
hydropneumatic
struts
commercial vehicles
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
Application number
DE9017845U
Other languages
German (de)
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.)
MAN Truck and Bus SE
Original Assignee
MAN Nutzfahrzeuge 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 MAN Nutzfahrzeuge AG filed Critical MAN Nutzfahrzeuge AG
Priority to DE9017845U priority Critical patent/DE9017845U1/en
Publication of DE9017845U1 publication Critical patent/DE9017845U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
    • B60G17/005—Suspension locking arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2200/00—Indexing codes relating to suspension types
    • B60G2200/30—Rigid axle suspensions
    • B60G2200/32—Rigid axle suspensions pivoted
    • B60G2200/322—Rigid axle suspensions pivoted with a single pivot point and a straight axle
    • 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
    • B60G2204/12—Mounting of springs or dampers
    • B60G2204/128—Damper mount on vehicle body or chassis
    • 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
    • B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
    • B60G2204/46—Means for locking the suspension
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2400/00—Indexing codes relating to detected, measured or calculated conditions or factors
    • B60G2400/25—Stroke; Height; Displacement
    • B60G2400/252—Stroke; Height; Displacement vertical

Landscapes

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

Description

1.2774 6.2.19921.2774 6.2.1992

Starrachse mit hydropneumatischen Federbeinen in Nutzfahrzeugen BeschreibungRigid axle with hydropneumatic suspension struts in commercial vehicles Description

Die Neuerung bezieht sich auf eine Starrachse mit hydropneumatischen Federbeinen in Nutzfahrzeugen.The innovation relates to a rigid axle with hydropneumatic suspension struts in commercial vehicles.

Bei Fahrzeugen mit Starrachsen und hydropneumatischen Federbeinen ergibt sich aus kinematischen Gründen, daß das Einfedern der Räder bei Verschränkung einen viel größeren Radkasten beansprucht als bei Paralleleinfederung, d.h., daß entweder der Radkasten bei Paralleleinfederung nicht genutzt wird oder die Paralleleinfederung bei vorgegebenen kleinen Radkasten reduziert werden muß.In vehicles with rigid axles and hydropneumatic spring struts, for kinematic reasons, the deflection of the wheels during articulation requires a much larger wheel housing than during parallel deflection, i.e. that either the wheel housing is not used during parallel deflection or the parallel deflection must be reduced given the small wheel housing.

Der Neuerung liegt die Aufgabe zugrunde, die Radkästen optimal auszunutzen.The innovation is based on the task of making optimal use of the wheel arches.

Dies wird neuerungsgemäß dadurch erreicht, daß der Mind estfrei raum zwischen den rahmenfesten Radkasten und den ihnen zugehörigen, mit der Starrachse verbundenen Rädern bei verschränkender Einfederung, geregelt über variable Anschläge, nicht größer ist als bei maximaler Paralleleinfederung. In Ausgestaltung der Neuerung ist an der Starrachse, beiderseits der Fahrzeuglängsmittelebene und in gleichem Abstand zu ihr je ein Sensor zur Erfassung der unterschiedlichen Rahmenhöhe bei Verschränkung angeordnet. Die entsprechenden Meßwerte werden von einem Steuergerät ausgewertet, dessen Signale auf zwischen Federspeichern und hydropneumatischen Federbeinen angeordneten Sperrdrosselventilen geschaltet sind. Bei Erreichen eines vorgegebenen Grenzwertes ist die Verbindung zwischen den Federspeichern und den hydropneumatischen Federbeinen gesperrt. Solcherart können unnötig große Radkasten und Federbeine vermieden werden.This is achieved in accordance with the innovation by ensuring that the minimum free space between the wheel housings fixed to the frame and the wheels connected to them, which are connected to the rigid axle, is not greater during deflection, controlled by variable stops, than during maximum parallel deflection. In the innovation, a sensor is arranged on the rigid axle, on both sides of the vehicle's longitudinal center plane and at the same distance from it, to record the different frame heights during deflection. The corresponding measured values are evaluated by a control unit, the signals of which are switched to blocking throttle valves arranged between the spring accumulators and the hydropneumatic spring struts. When a predetermined limit is reached, the connection between the spring accumulators and the hydropneumatic spring struts is blocked. In this way, unnecessarily large wheel housings and spring struts can be avoided.

Die Neuerung ist in einem Ausführungsbeispiel dargestellt. Die einzige Figur zeigt eine Schemaskizze einer Starrachsenaufhängung.The innovation is shown in an example. The only figure shows a schematic sketch of a rigid axle suspension.

An der Starrachse 6 sind die Räder 7 befestigt, deren oberer Teil von einem Radkasten 8 umgeben ist. Zwischen Rahmen 9 und Starrachse 6 sind beiderseits der Längsmittelebene hydropneumatische Federbeine 2 gelenkig angebunden. Ebenso beiderseitig der Längsmittelebene und in gleichem Abstand zu ihr sind Senso-The wheels 7 are attached to the rigid axle 6, the upper part of which is surrounded by a wheel housing 8. Hydropneumatic spring struts 2 are connected in an articulated manner between the frame 9 and the rigid axle 6 on both sides of the longitudinal center plane. Sensors are also attached on both sides of the longitudinal center plane and at the same distance from it.

2 " 1.2774 2 " 1.2774

6.2.19926.2.1992

ren 5 angeordnet. Diese messen bei Verschränkung des Rahmens 6 ihren Wegunterschied, der dann das Maß der Verschränkung bedeutet, das in ein Steuergerät 3 eingegeben wird und dort mit einem maximalen Grenzwert abgeglichen wird. Ist der maximale Grenzwert erreicht, so werden die zwischen den Federspeichern 1 und den hydropneumatischen Federbeinen 2 angeordneten Sperr-Drosselventile 4 geschlossen, wodurch einer weiteren Verschränkung der Radkästen entgegengewirkt wird.ren 5 are arranged. These measure their path difference when the frame 6 is twisted, which then represents the degree of twisting, which is entered into a control unit 3 and compared there with a maximum limit value. If the maximum limit value is reached, the blocking throttle valves 4 arranged between the spring accumulators 1 and the hydropneumatic spring struts 2 are closed, which counteracts further twisting of the wheel arches.

1.2774 6.2.19921.2774 6.2.1992

BezugszeichenlisteList of reference symbols

1 Federspeicher1 spring accumulator

2 hydropneumatische Federbeine2 hydropneumatic spring struts

3 Steuergerät3 Control unit

4 Sperr-Drossel-Ventile4 shut-off throttle valves

5 Sensoren5 sensors

6 Starrachse6 Rigid axle

7 Räder7 wheels

8 Radkästen8 wheel arches

9 Rahmen (Wannenaufbau)9 Frame (tub structure)

Claims (2)

1.2774 6.2.19921.2774 6.2.1992 SchutzansprücheProtection claims 1. Starrachse mit hydropneumatischen Federbeinen in Nutzfahrzeugen, dadurch gekennzeichnet, daß der Mind estfrei raum zwischen den rahmenfesten Radkasten (8) und den ihnen zugehörigen, mit der Starrachse (6) verbundenen Rädern (7) bei verschränkender Einfederung, geregelt über variable Anschläge, nicht größer ist als bei maximaler Paralleleinfederung.1. Rigid axle with hydropneumatic spring struts in commercial vehicles, characterized in that the minimum free space between the frame-fixed wheel housing (8) and the associated wheels (7) connected to the rigid axle (6) is not greater with interlocking spring deflection, controlled by variable stops, than with maximum parallel spring deflection. 2. Starrachse nach Anspruch 1, dadurch gekennzeichnet, daß an der Starrachse (6) beiderseits der Fahrzeuglängsmittelebene und in gleichem Abstand zu ihr je ein Sensor (5) zur Erfassung der unterschiedlichen Rahmenhöhe bei Verschränkung angeordnet ist, daß die entsprechenden Meßwerte von einem Steuergerät (3) ausgewertet werden, dessen Signale auf zwischen Federspeichem (1) und hydropneumatischen Federbeinen (2) angeordneten Sperr-Drosselventilen (4) schaltbar sind und daß bei Erreichen eines vorgegebenen Grenzwertes die Verbindung zwischen den Federspeichern (1) und den hydropneumatischen Federbeinen (2) gesperrt ist.2. Rigid axle according to claim 1, characterized in that a sensor (5) for detecting the different frame heights during articulation is arranged on the rigid axle (6) on both sides of the vehicle's longitudinal center plane and at the same distance from it, that the corresponding measured values are evaluated by a control unit (3), the signals of which can be switched to blocking throttle valves (4) arranged between spring accumulators (1) and hydropneumatic spring struts (2), and that when a predetermined limit value is reached, the connection between the spring accumulators (1) and the hydropneumatic spring struts (2) is blocked.
DE9017845U 1990-08-08 1990-08-08 Rigid axle with hydropneumatic suspension struts in commercial vehicles Expired - Lifetime DE9017845U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE9017845U DE9017845U1 (en) 1990-08-08 1990-08-08 Rigid axle with hydropneumatic suspension struts in commercial vehicles

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4025179 1990-08-08
DE9017845U DE9017845U1 (en) 1990-08-08 1990-08-08 Rigid axle with hydropneumatic suspension struts in commercial vehicles

Publications (1)

Publication Number Publication Date
DE9017845U1 true DE9017845U1 (en) 1992-03-26

Family

ID=25895755

Family Applications (1)

Application Number Title Priority Date Filing Date
DE9017845U Expired - Lifetime DE9017845U1 (en) 1990-08-08 1990-08-08 Rigid axle with hydropneumatic suspension struts in commercial vehicles

Country Status (1)

Country Link
DE (1) DE9017845U1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0607516A2 (en) * 1992-12-21 1994-07-27 Cadillac Gage Textron Inc. Anti-roll system for wheeled vehicles
EP0803384A2 (en) * 1996-04-24 1997-10-29 Xaver Fendt GmbH & Co. Device for limiting the oscillating motion of a rigid axle of a commercial vehicle, especially of an agricultural tractor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0607516A2 (en) * 1992-12-21 1994-07-27 Cadillac Gage Textron Inc. Anti-roll system for wheeled vehicles
EP0607516A3 (en) * 1992-12-21 1995-06-28 Cadillac Gage Textron Anti-roll system for wheeled vehicles.
EP0803384A2 (en) * 1996-04-24 1997-10-29 Xaver Fendt GmbH & Co. Device for limiting the oscillating motion of a rigid axle of a commercial vehicle, especially of an agricultural tractor
EP0803384A3 (en) * 1996-04-24 1999-04-21 Agco GmbH & Co. Device for limiting the oscillating motion of a rigid axle of a commercial vehicle, especially of an agricultural tractor

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