DE19654241A1 - Procedure for connecting rear axles of multi=axle vehicle and articulated trucks - Google Patents
Procedure for connecting rear axles of multi=axle vehicle and articulated trucksInfo
- Publication number
- DE19654241A1 DE19654241A1 DE1996154241 DE19654241A DE19654241A1 DE 19654241 A1 DE19654241 A1 DE 19654241A1 DE 1996154241 DE1996154241 DE 1996154241 DE 19654241 A DE19654241 A DE 19654241A DE 19654241 A1 DE19654241 A1 DE 19654241A1
- Authority
- DE
- Germany
- Prior art keywords
- rear axles
- procedure
- axle vehicle
- axles
- connecting rear
- 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- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D7/00—Steering linkage; Stub axles or their mountings
- B62D7/06—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins
- B62D7/14—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins the pivotal axes being situated in more than one plane transverse to the longitudinal centre line of the vehicle, e.g. all-wheel steering
- B62D7/142—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins the pivotal axes being situated in more than one plane transverse to the longitudinal centre line of the vehicle, e.g. all-wheel steering specially adapted for particular vehicles, e.g. tractors, carts, earth-moving vehicles, trucks
- B62D7/144—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins the pivotal axes being situated in more than one plane transverse to the longitudinal centre line of the vehicle, e.g. all-wheel steering specially adapted for particular vehicles, e.g. tractors, carts, earth-moving vehicles, trucks for vehicles with more than two axles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D13/00—Steering specially adapted for trailers
- B62D13/04—Steering specially adapted for trailers for individually-pivoted wheels
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
Abstract
Description
Die Erfindung bezieht sich auf Sattelschlepper oder allgemein auf Fahrzeuge mit mehr als einer Achse nach der gelenkten Vorderachse.The invention relates to semitrailers or generally to vehicles with more than an axle after the steered front axle.
Bei derartigen Fahrzeugen wenden die hinteren Achsen nicht um ihre Längsmitte sondern um einen aus der Geometrie der Gesamtheit der Achsen sich bildenden gemeinsamen Dreh punkt (1). Die Räder (2) an solchen Achsen bewegen sich nicht entlang des zum jeweiligen Wendekreis gehörenden Tangentenvektors sondern entlang einem Vektor mit starker radi aler Komponente. Das gesamte System der hinteren Achsen wird unter der Führung der Vorderachse oder im Fall von Sattelschleppern unter Führung des Zugwagens herumge zerrt. Das führt zur Reduzierung der Straßenhaftung, was sich insbesondere in abschüssigen Kurven unfallträchtig bemerkbar macht und zu übermäßigem Reifenverschleiß führt.In such vehicles, the rear axles do not turn around their longitudinal center but around a common pivot point ( 1 ) formed from the geometry of the entirety of the axles. The wheels ( 2 ) on such axes do not move along the tangent vector belonging to the respective turning circle but along a vector with a strong radial component. The entire system of the rear axles is dragged around under the guidance of the front axle or in the case of articulated lorries under the guidance of the towing vehicle. This leads to a reduction in road grip, which is particularly noticeable in steep turns and leads to excessive tire wear.
Das mit dieser Erfindung vorgeschlagene Verfahren fordert die Nachlenkung der hinteren Achsen auf spezielle Weise, entweder unter Inanspruchnahme sogenannter Achsenkreuze oder paarweiser Einzelradlenkung wie bei Vorderrädern.The method proposed by this invention requires the rearward steering Axes in a special way, either using so-called axis crosses or pairwise independent wheel steering as with front wheels.
Die Nachlenkung von Hinterachsen ist dem Stand der Technik entsprechend bekannt. Doch dienen alle bekannt gewordenen Konstruktionen der Verbesserung der Manövrier fähigkeit. Insbesondere bei Fahrzeugen mit Überlänge oder bei Schwerlastfahrzeugen erweist sich das als Vorteil. Bei den bekannt gewordenen Konstruktionen erfolgt der Radeinschlag bei allen hinteren Achsen gleichsinnig. Das Fahrzeug schwenkt hinten seitlich aus. Einer Verbesserung der Straßenhaftung dienen diese Konstruktionen nicht.The articulation of rear axles is known in the prior art. However, all known constructions serve to improve maneuvering ability. Especially for vehicles with excess length or heavy-duty vehicles this proves to be an advantage. With the known constructions the Wheel lock in the same direction on all rear axles. The vehicle swings sideways at the rear out. These constructions do not serve to improve road grip.
Bei einer Achskonstruktion nach dem Verfahren dieser Erfindung werden die Räder einer Achse durch äußere Mittel so eingeschlagen, daß sie dem jeweiligen Tangentenvektor folgen. Die äußeren Mittel sind entweder hydraulisch oder pneumatisch wirkende Kräfte, die von dafür vorgesehenen Geräten in Abhängigkeit vom Lenkeinschlag der Vorderachse oder bei Sattelschleppern in Abhängigkeit von der Knickung erzeugt und gesteuert werden.In an axle construction using the method of this invention, the wheels become one Axis struck by external means so that it corresponds to the respective tangent vector consequences. The external means are either hydraulic or pneumatic forces, the devices provided for this depending on the steering angle of the front axle or generated and controlled for articulated lorries depending on the buckling.
Fahrzeuge, deren Achsen nach dem vorgeschlagenen Verfahren nachgelenkt werden, haben in Kurven hohe Straßenhaftung und gegenüber konventionellen Konstruktionen wesentlich verringerten Reifenverschleiß.Vehicles whose axles are redirected according to the proposed procedure high road grip in curves and essential compared to conventional constructions reduced tire wear.
Fig. 1 zeigt die Disposition eines dreiachsigen Systems, bei dem die vordere und die hintere der drei Achsen nachgelenkt werden. Ein Hydraulikgenerator (4), der mitlaufend von der mittleren Achse angetrieben wird, bringt den hydraulischen Druck auf, mit dessen Hilfe Hydrauliksteller (5) auf der vorderen und der hinteren der drei Achsen die Auslenkung der Räder (2) um die senkrechten Achsen (3) besorgen. Der Grad der Auslenkung ist abhängig vom Hydraulikdruck, der dem Hydrauliksteller zugeführt wird. Dieser wird durch ein übliches Hydraulikventil (nicht gezeichnet) reguliert. Dieses Ventil wird seinerseits gesteuert durch einen elektrischen oder einen hydraulischen Signalkreis (nicht gezeichnet) und dieser wiederum von einem dafür vorgesehenen Gerät (nicht gezeichnet) in Abhängigkeit von Lenkeinschlag oder Knickradius. In einer Variante könnte der für die Verstellung notwen dige Hydraulikdruck von einem am Motor des Fahrzeugs angetriebenen Hydraulikgenerator erzeugt werden. Die Rückstellung erfolgt jeweils durch eine Gegendruckfeder oder einen in die Gegenrichtung arbeitenden Hydrauliksteller. Fig. 1 shows the disposition of a three-axis system, in which the front and the rear of the three axes are articulated. A hydraulic generator ( 4 ), which is driven by the central axis, applies the hydraulic pressure, with the help of which hydraulic actuators ( 5 ) on the front and rear of the three axes deflect the wheels ( 2 ) around the vertical axes ( 3 ) to get. The degree of deflection depends on the hydraulic pressure that is supplied to the hydraulic actuator. This is regulated by a standard hydraulic valve (not shown). This valve is in turn controlled by an electrical or a hydraulic signal circuit (not shown) and this in turn by a device provided for this purpose (not shown) depending on the steering angle or kink radius. In a variant, the hydraulic pressure required for the adjustment could be generated by a hydraulic generator driven on the engine of the vehicle. The reset is carried out by a counter pressure spring or a hydraulic actuator working in the opposite direction.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1996154241 DE19654241A1 (en) | 1996-12-23 | 1996-12-23 | Procedure for connecting rear axles of multi=axle vehicle and articulated trucks |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1996154241 DE19654241A1 (en) | 1996-12-23 | 1996-12-23 | Procedure for connecting rear axles of multi=axle vehicle and articulated trucks |
Publications (1)
Publication Number | Publication Date |
---|---|
DE19654241A1 true DE19654241A1 (en) | 1997-11-06 |
Family
ID=7816145
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1996154241 Withdrawn DE19654241A1 (en) | 1996-12-23 | 1996-12-23 | Procedure for connecting rear axles of multi=axle vehicle and articulated trucks |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE19654241A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016124662A1 (en) * | 2015-02-06 | 2016-08-11 | Saf-Holland Gmbh | Steering stabilizing means |
-
1996
- 1996-12-23 DE DE1996154241 patent/DE19654241A1/en not_active Withdrawn
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016124662A1 (en) * | 2015-02-06 | 2016-08-11 | Saf-Holland Gmbh | Steering stabilizing means |
CN107207046A (en) * | 2015-02-06 | 2017-09-26 | 塞夫霍兰德有限公司 | Stable direction device |
CN107207046B (en) * | 2015-02-06 | 2019-09-10 | 塞夫霍兰德有限公司 | Stable direction device |
US10689032B2 (en) | 2015-02-06 | 2020-06-23 | Saf-Holland Gmbh | Steering stabilizing means |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OAV | Applicant agreed to the publication of the unexamined application as to paragraph 31 lit. 2 z1 | ||
8139 | Disposal/non-payment of the annual fee |