DE102015114262A1 - Apparatus and method for detecting forces acting on an axle and axle assembly - Google Patents

Abstract

A device (12) serves to detect forces acting on an axle (3) of an agricultural work vehicle, wherein the axle (3) has at least two bearings (5, 10) each having at least one rotational and / or translatory degree of freedom, and / or at least one spring unit (4) on the chassis (2) of the working vehicle is stored or supported. In order to improve the detection of forces acting on an axle (3) of an agricultural working vehicle in such a way that even with more complex axle suspensions of the axle (3) such a force detection is reliably possible, at least two bearings (5, 10) or at least one bearing ( 5, 6) and at least one spring unit (4) in each case at least one force measuring unit (6) to be assigned.

Description

The invention relates to a device for detecting forces acting on an axle of an agricultural work vehicle, wherein the axle is supported by at least two bearings each having at least one rotational and / or translational degree of freedom and / or by at least one spring unit on the chassis of the working vehicle . is supported.

Furthermore, the invention relates to an axle assembly for an agricultural work vehicle, comprising at least one axle and at least two bearings, each having at least one rotational and / or translatory degree of freedom, and / or at least one spring unit, via which the axle to a chassis of the working vehicle storable or is supportable.

Furthermore, the invention relates to a method for detecting forces acting on an axle of an agricultural work vehicle, the axle being mounted on the chassis of the work vehicle via at least two bearings each having at least one rotational and / or translatory degree of freedom and / or at least one spring unit or is supported.

The DE 41 23 289 A1 discloses a vehicle with a lateral support of a front axle to a vehicle frame. The vehicle frame takes on a rigidly integrated rear axle and a swinging suspended front axle. For this purpose, the front axle is suspended centrally on a center bolt on the vehicle frame. To determine an axle load acting on the front axle, an electrical force measuring bolt may be provided instead of the center bolt.

An object of the invention is to improve the detection of forces acting on an axle of an agricultural work vehicle in such a way that such a detection of the forces is reliably possible even with more complex axle suspensions of the axle.

This object is solved by the independent claims. Advantageous embodiments are specified in particular in the dependent claims, each of which taken alone or in different combinations with each other can represent an aspect of the invention.

In a device according to the invention for detecting forces acting on an axle of an agricultural work vehicle, wherein the axle via at least two bearings, each having at least one rotational and / or translatory degree of freedom, and / or stored on at least one spring unit on the chassis of the working vehicle is supported, at least two bearings and / or at least one spring unit is assigned in each case at least one force measuring unit.

With the device according to the invention, forces acting on the axis of the agricultural work vehicle, in particular lateral, vertical and / or horizontal, forces can be detected at at least two bearings, via which the axle is suspended on the chassis. In addition, according to the invention it is possible to detect the vertical forces by means of a force measuring device which is associated with at least one spring unit. Such a force detection can thus also take place on several, in particular all, bearings and / or spring units, via which the axle is suspended on the chassis. In an appropriately suspended over two or more bearings on the chassis axis is a force detection on only one camp, as with DE 41 23 289 A1 is not sufficient to detect the forces actually acting on the axle. Particularly with driven, sprung axles, that is to say with more complex axle suspensions, it is not possible to determine adequately accurately lateral, vertical and / or horizontal axle loads by detecting the forces on only one bearing.

The axle can be suspended directly or via another component indirectly via the bearings on the chassis. The invention is intended in particular to be provided for an axle load measurement on a front axle of an agricultural work vehicle.

The force measuring units can each be arranged in particular directly on the respective bearing and thereby assigned to the bearing. The number of force measuring units of the device according to the invention can be selected in particular taking into account the kinematics of the respectively given axle suspension.

The agricultural work vehicle can be designed, for example, as a harvester, in particular a self-propelled harvester or forage harvester, as a tractor or as a system vehicle, ie a trac vehicle or implement carrier.

In accordance with an advantageous embodiment, the device comprises at least one control and / or regulating unit that can be connected by signal technology to the force measuring units and that is set up for evaluating force measuring signals generated by means of the force measuring units. The control and / or regulating unit can be wired or wireless signal technology connected to the force measuring units. For receiving and evaluating the force measuring signals, the control and / or Control unit at least one electronics, in particular a microprocessor, have. The determined data are preferably transmitted digitally via a data bus. The control and / or regulating unit may be formed by a vehicle electronics of the agricultural work vehicle or separately. The control and / or regulating unit can be set up to derive from the received force measuring signals the momentarily acting wheel and / or axle forces which can be used as control and / or controlled variables for components and / or functions of the agricultural working vehicle, for example for regulation of pneumatic or hydropneumatic spring units of the working vehicle, a chassis stiffness of the working vehicle, a tire pressure and / or a tensile force. Furthermore, the control and / or regulating unit can use the force measuring signals for designing a ballast, for controlling a brake force distribution and / or for controlling a drive train controller and / or controller of the agricultural work vehicle. Here, various parameters that describe, for example, the tire-ground contact, calculated, displayed, evaluated, analyzed and used to control vehicle systems. In addition, the force measuring signals can be used to implement a tip-over protection, to determine permissible axle loads, to weigh, to detect abuse, for coupling force control in trailer operation and the like. Furthermore, the control and / or regulating unit can cooperate with a device by means of which, depending on the front axle force, one or more parameters of an implement used with the agricultural working machine, in particular the tractor, are regulated. For example, the working depth of a mounted or mounted on the rear of the tractor attachment can be regulated. For example, the working depth of a semi-mounted plow or a Aufsattelgrubbers is changed for this purpose. In addition, the biasing force of a traction booster on a tillage implement or a top cylinder on, for example, a slurry tank can be controlled in dependence on the front axle load. Finally, it is also possible, depending on the determined axle load, to regulate the tire pressure, for example of an attached slurry tanker or silage transport vehicle, as well as the drive torque of, for example, a hydraulically or electrically driven drive axle.

In research projects, there are approaches to determine the vertical axle load of a tractor on sprung axles from the pressure in the cylinders of a pneumatic or hydropneumatic axle suspension. A disadvantage of this solution is that depending on the axle kinematics used no precise determination of the axle load is possible because the driving and braking torques acting on the wheel flanges of the axle cause measurement errors. In addition, friction in the cylinders and in the bearings of the suspension kinematics causes hysteresis effects. In addition, it is not possible with these approaches, in addition to the wheel or axle load and the tensile forces, ie to determine forces in the horizontal direction.

According to a further advantageous embodiment, at least one force measuring unit comprises at least one force measuring pin. The force measuring bolt can be guided by a defined by the respective bearing bearing point and thereby replace a bearing pin. It can also have at least one force measuring pin each force measuring unit.

Advantageously, the force measuring pin comprises at least one strain gauge, at least one magnetoelastic sensor or at least one Hall sensor. Which of these alternatives is chosen depends on the respective technical conditions and requirements. However, the force measuring pin can also work according to another measuring principle.

A further advantageous embodiment provides that at least one force measuring unit is arranged for detecting uniaxial, biaxial or multiaxial forces. This makes it possible to detect forces acting on the front axle in one, two or more axial directions, as a result of which, in particular, lateral, vertical and / or horizontal forces can be detected.

An axle assembly according to the invention for an agricultural work vehicle comprises at least one axle, at least two bearings, each having at least one rotational and / or translational degree of freedom or formed as a spring unit and via which the axle can be stored on a chassis of the working vehicle, and at least one device according to one of the aforementioned embodiments or any combination thereof.

With the axle arrangement, the advantages mentioned above with respect to the device are connected accordingly. Preferably, it is a Vorderachsanordnung.

According to an advantageous embodiment, the axle assembly comprises at least one pneumatic or hydropneumatic spring unit, which is connected via a first bearing to the front axle and connectable via a second bearing to the chassis, wherein at least one of these two bearings at least one force measuring unit is arranged. The front axle is suspended afterwards suspended on the chassis. Preferably, the Vorderachsanordnung this at least two corresponding pneumatic or hydropneumatic spring units, on each of which a force measuring unit is arranged accordingly. In particular vertical axis forces can be determined via the force measuring units. Alternatively, it is possible to determine the occurring axial forces due to the pressures occurring in the hydropneumatic or pneumatic spring units.

Advantageously, the Vorderachsanordnung comprises at least one longitudinal rocker over which the front axle is guided on the chassis and which is connected via at least one bearing to the chassis, and wherein at least one force measuring unit is arranged on the bearing. The longitudinal rocker, for example, act as a pushed longitudinal rocker and be aligned substantially horizontally.

Among other things, horizontal axis forces can be detected via the force measuring unit.

According to a further advantageous embodiment, it is provided that the longitudinal rocker is U-shaped and has two parallel swing arms, wherein the front axle is pivotally mounted on at least one pendulum joint on the longitudinal rocker, each rocker arm is articulated via at least one bearing to the chassis, and wherein at least one of these two bearings at least one force measuring unit is arranged. Here, the front axle can be designed as a rigid axle. Among other things, horizontal axle forces can be detected via the force measuring units.

A further advantageous embodiment provides that the front axle is designed as a front axle which can be driven via a cardan shaft. Furthermore, the front axle can additionally be guided on the chassis via at least one Panhard bar, at least one force measuring unit being arranged on at least one further bearing via which the Panhard bar is articulated to the chassis or to the front axle. The Vorderachsanordnung can in this case have a longitudinal rocker, which is guided via a bearing in the form of a ball joint on the chassis. In addition, the Vorderachsanordnung may have at least two hydropneumatic spring units over which the front axle is suspended suspended from the chassis.

According to a further advantageous embodiment, the front axle is provided with space links for independent suspension, wherein at least two bearings or a spring unit and a bearing, via which a space link is articulated to another component of the front axle or the chassis, at least one force measuring unit is arranged. As a result, in particular wheel forces can be detected, which act on the front axle.

According to a further advantageous embodiment, the front axle is suspended unsprung on the chassis. At least two bearings, at least one force measuring unit is arranged in each case.

According to a method according to the invention for detecting forces acting on a front axle of an agricultural work vehicle, the front axle being mounted on the chassis of the work vehicle via at least two bearings each having at least one rotational and / or translatory degree of freedom and / or being designed as a spring unit, the forces acting thereon are detected at at least two bearings or at the spring unit, wherein the detected forces are used as parameters for designing a ballast, for regulating pneumatic or hydropneumatic spring units, for regulating a tire pressure, for controlling a chassis rigidity, for regulating a brake force distribution, for controlling a tractive force, for traction optimization, for controlling a driving and / or driveline control of the agricultural working vehicle and / or for regulating a parameter of an implement connected to the agricultural working vehicle be used.

The method according to the invention is correspondingly associated with the advantages mentioned above with reference to the device or the front axle arrangement. The method can be used to optimize the operation of the agricultural work vehicle.

The invention is not limited to the specified combination of the features of the independent claims and the dependent claims. In addition, there are further possibilities of combining individual features, in particular if they result from the patent claims, the following description of the exemplary embodiments or directly from the figures. In addition, the reference of the claims to the figures by the use of reference numerals is not intended to limit the scope of the claims to the illustrated embodiments.

In the following, the invention will be explained by way of example with reference to the attached figures with reference to a preferred embodiment, wherein the features illustrated below may represent an aspect of the invention both individually and in different combinations with each other.

Show it:

1 a schematic and perspective view of an embodiment of a Vorderachsanordnung invention;

2 a schematic and perspective view of another embodiment of a Vorderachsanordnung invention; and

3 a schematic and perspective view of another embodiment of a Vorderachsanordnung invention.

In the figures, identical or functionally identical components are provided with the same reference numerals.

1 shows a schematic and perspective view of an embodiment of a Vorderachsanordnung invention 1 for an agricultural work vehicle, of which in 1 in addition to the front axle arrangement 1 the chassis 2 is shown.

The front axle arrangement 1 includes a rigid front axle 3 , Furthermore, the Vorderachsanordnung includes 1 two hydropneumatic spring units 4 , each with a first camp 5 with the front axle 3 and each via a not shown second bearing with the chassis 2 are connected. In 1 is just one of the hydropneumatic spring units 4 to see. At both camps 5 is each a force measuring unit 6 arranged.

In addition, the Vorderachsanordnung includes 1 a longitudinal swingarm 7 about which the front axle 3 on the chassis 2 is guided. The longitudinal swingarm 7 is U-shaped and comprises two substantially parallel swing arms 8th , The front axle 3 is via a pendulum joint 9 pendulum on the longitudinal swingarm 7 stored. Every swing arm 8th is about one camp each 10 to the chassis 2 hinged. At the camps 10 is each a force measuring unit 6 arranged. On the chassis 2 are also two stop buffers 11 arranged at which the respective swing arm 8th can strike.

The front axle 3 is thus about the bearings 5 . 10 and the bearings, not shown, between the hydropneumatic spring units 4 and the chassis 2 on the chassis 2 stored. Camps 5 and the bearings, not shown, between the hydropneumatic spring units 4 and the chassis 2 are designed as spherical bearings. Camps 10 are designed as a pivot bearing.

The front axle arrangement 1 further comprises a device 12 for detecting on the front axle 3 acting forces. The device 12 includes those at the camps 5 and 10 arranged force measuring units 6 and a signaling connections S Signaltechnisch with the force measuring units 6 connectable control and / or regulating unit 13 for evaluating by means of force measuring units 6 generated force measuring signals is set up.

At least one force measuring unit 6 includes a force measuring bolt, not shown. The force measuring pin may have at least one strain gauge, not shown, at least one magnetoelastic sensor, not shown, or at least one Hall sensor, not shown. At least one force measuring unit 6 may be configured to detect uniaxial, biaxial or multiaxial forces.

The 2 shows a schematic and perspective view of another embodiment of a Vorderachsanordnung invention 1 for a in 2 not shown agricultural work vehicle.

The front axle arrangement 1 includes a rigid front axle 3 , Furthermore, the Vorderachsanordnung includes 1 two hydropneumatic spring units 4 , each with a first camp 5 with the front axle 3 and in each case via a not shown second bearing with a chassis of the agricultural work vehicle are connectable. At both camps 5 is each a force measuring unit 6 arranged.

In addition, the Vorderachsanordnung includes 1 a pushed longitudinal rocker 7 about which the front axle 3 is guided on the chassis. The longitudinal swingarm 7 is rigid with the front axle 3 and about a camp 17 articulated with a hinged eye attachable to the chassis 18 connected. This allows the front axle 3 around a pendulum axis 19 commute. At the camp 17 is a force measuring unit 6 arranged. The front axle 3 is as a non-illustrated cardan shaft drivable front axle 3 trained, including the front axle 3 a propeller shaft flange 14 having. The front axle 3 is additionally via a Panhardstab 15 led to the chassis. At least one more camp 16 , about which the Panhardstab 15 on the chassis (not shown) or on the front axle 3 is hinged, a force measuring unit, not shown, may be arranged. The front axle arrangement 1 also includes a steering cylinder 20 and two wheel flanges 21 ,

The front axle 3 is thus about the bearings 5 . 16 . 17 and the bearings not shown between the hydropneumatic spring units 4 and the chassis mounted on the chassis. Camps 5 and the bearings, not shown, between the hydropneumatic spring units 4 and the chassis as well as the bearings 16 and 17 are designed as spherical bearings.

The front axle arrangement 1 includes a device 12 for detecting on the front axle 3 acting forces. The device 12 includes those at the camps 5 and 17 , and maybe 16 , arranged force measuring units 6 and a signaling connections S Signaltechnisch with the force measuring units 6 connectable control and / or regulating unit 13 for evaluating by means of force measuring units 6 generated force measuring signals is set up.

At least one force measuring unit 6 includes a force measuring bolt, not shown. The force measuring pin may have at least one strain gauge, not shown, at least one magnetoelastic sensor, not shown, or at least one Hall sensor, not shown. At least one force measuring unit 6 may be configured to detect uniaxial, biaxial or multiaxial forces.

To calculate the axial traction, the balance of forces in the x-direction can be established: ΣF _x = + F _{x_swing} + F _{drives_li} + F _{drives_re} = 0

For the axle tension then applies: F _{train_axis} = -F _{drive_li} - F _{drive_re} = F _{x_swing}

This makes it clear that the Achszugkraft F _{Zug_Achse} , so the sum of the driving forces F _{Trieb_li} and F _{Trieb_re of} the left and right front wheel, not shown, by the force measuring pin 6 at the camp 17 in the x-direction measured force F _{x_Schwinge} corresponds.

The vertical axle load F _{axle load} can be determined by an equilibrium of forces in the z-direction: ΣF _z = F _{z_Schwinge} - F _{z_Zyl_li} - F _{z_Zyl_re} + F _{Radlast_li} + F _{Radlast_re} = 0 F _{axle load} = F _{wheel load_li} + F _{wheel load_re} = F _{z_Zyl_li} + F _{z_Zyl_re} - F _{z_Schwinge}

The vertical axle load F _{axle load} , ie the sum of the wheel loads F _{Radlast_li} and F _{Radlast_re} , results according to the last-mentioned equation from the sum of the bearings in the vertical direction 17 measured force F _{z_Schwinge} and at the camps 5 measured forces F _{z_Zyl_li} and F _{z_Zyl_re} .

Alternatively to the detection of the camps 5 attacking forces could be the vertical forces on the hydropneumatic spring units 4 be determined from the pressure of the hydropneumatic suspension of the agricultural work vehicle. However, this requires the angle α of the hydraulic spring units 4 be known with respect to the axis A. For small pendulum angles, a position sensor of a level control of the agricultural work vehicle could be sufficient.

The moment equilibrium about the axis A in the xz plane shows that in addition to the driving or braking torques M _{Rad_li} and M _{Rad_re} acting on the wheels, the forces acting on the axle kinematics in the z direction also appear in the equation: ΣM A / xz = -F _z-swing · l _swing + F _{z_Zyl_li} · l _{h_Zyl} + F _{z_Zyl_re} · l _{h_Zyl} + M _{Rad_li} + M _{Rad_re} = 0

Here are l _rocker the length of the rocker and l _{h_Zyl} the lever arm of the force _application points of the suspension _cylinder relative to the force _{application point} of the wheel forces in the middle of the wheel flange. Consequently, in axle designs in which the hydropneumatic spring units have a relative lever arm l _{h_Zyl} at the _{point of application of} the wheel forces, the axle load at braking or driving torques can no longer be determined correctly only from the forces on the suspension cylinders, for example from the pressures of the hydropneumatic suspension ,

3 shows a schematic and perspective view of another embodiment of a Vorderachsanordnung invention 1 for an agricultural work vehicle, of which in 3 in addition to the front axle arrangement 1 an internal combustion engine 22 and a related one as a chassis 2 serving Vorderachslagerbock are shown.

The front axle arrangement 1 includes a two drive shafts 23 having front axle 3 of which in 3 only one is shown. Furthermore, the Vorderachsanordnung includes 1 two hydropneumatic spring units 4 , which has an unseen first bearing with the front axle 3 and via a not shown second bearing with the chassis 2 or a further chassis component of the agricultural work vehicle, not shown, are connectable. At one of the bearings, over which the respective hydropneumatic spring unit with the front axle 3 or the chassis 2 or the further chassis component is connected, a force measuring unit, not shown, is arranged. Further, on the chassis 2 a front lift 28 arranged.

The front axle arrangement 1 also includes two upper wishbones 24 (Space bar) and two lower wishbones 25 (Space bar), on the one hand to the chassis 2 and on the other hand to a steering knuckle 26 the front axle arrangement 1 are articulated. The front axle arrangement 1 also includes two track and steering levers 27 , The front axle 3 is thus with space links 24 and 25 provided for independent suspension. At least one camp 29 , about which a space link 24 respectively. 25 to the chassis 2 or to the respective steering knuckle 26 is hinged, at least one force measuring unit, not shown, is arranged.

The front axle 3 is thus about the bearings 29 over which the space directors 24 respectively. 25 to the chassis 2 are hinged to the chassis 2 stored. Camps 29 are designed as a pivot bearing.

The front axle arrangement 1 includes a device 12 for detecting on the front axle 3 acting forces. The device 12 includes those at the camps 29 arranged force measuring units and via signal connections S signal technically connectable to the force measuring units control and / or regulating unit 13 , which is set up to evaluate force measuring signals generated by the force measuring units.

At least one force measuring unit comprises a force measuring pin, not shown. The force measuring pin may have at least one strain gauge, not shown, at least one magnetoelastic sensor, not shown, or at least one Hall sensor, not shown. At least one force measuring unit can be set up to detect uniaxial, biaxial or multiaxial forces. Like from the 3 shows the control and / or regulating unit 13 also via signal connections S with force measuring units of the two hydropneumatic or pneumatic spring units 4 in connection. In this case, the respective force measuring unit determines the pressure in the spring unit, via which the control and / or regulating unit 13 a value for the axle load is derived.

LIST OF REFERENCE NUMBERS

1

front axle

2

chassis

3

Front

4

spring unit

5

camp

6

Force measurement unit

7

longitudinal link

8th

swing arm

9

pendulum joint

10

camp

11

buffer

12

contraption

13

Control and / or regulating unit

14

propshaft flange

15

Panhardstab

16

camp

17

camp

18

knuckle

19

swing axle

20

steering cylinder

21

wheel flange

22

gearbox

23

drive shaft

24

Multi-link (upper wishbone)

25

Multi-link (lower wishbone)

26

journal

27

steering lever

28

Front linkage

29

camp

S

signal connection

α

angle

QUOTES INCLUDE IN THE DESCRIPTION

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.

Cited patent literature

• DE 4123289 A1 [0004, 0008]

Claims (15)

Contraption ( 12 ) for detecting on an axis ( 3 ) of an agricultural work vehicle, the axis ( 3 ) over at least two bearings ( 5 . 10 . 16 . 17 . 29 ), each having at least one rotational and / or translatory degree of freedom, and / or via at least one spring unit ( 4 ) on the chassis ( 2 ) of the work vehicle, characterized in that at least two bearings ( 5 . 10 . 16 . 17 . 29 ) and / or the at least one spring unit ( 4 ) at least one force measuring unit ( 6 ) assigned. Contraption ( 12 ) according to claim 1, characterized by at least one signaling technology with the force measuring units ( 6 ) connectable control and / or regulating unit ( 13 ) used for evaluating by means of force measuring units ( 6 ) Force measuring signals is established. Contraption ( 12 ) according to claim 1 or 2, characterized in that at least one force measuring unit ( 6 ) has at least one force measuring bolt. Contraption ( 12 ) according to claim 3, characterized in that the force measuring pin has at least one strain gauge. Contraption ( 12 ) according to claim 3, characterized in that the force measuring pin has at least one magnetoelastic sensor or at least one Hall sensor. Contraption ( 12 ) according to one of claims 1 to 5, characterized in that at least one force measuring unit ( 13 ) is arranged for detecting uniaxial, biaxial or multiaxial forces. Axle arrangement ( 1 ) for an agricultural work vehicle, comprising at least one axle ( 3 ) and at least two bearings ( 5 . 10 . 16 . 17 . 29 ), each having at least one rotational and / or translational degree of freedom, and / or at least one spring unit ( 4 ) over which the axis ( 3 ) on a chassis ( 2 ) of the work vehicle is storable or supportable, characterized by at least one device ( 12 ) according to one of claims 1 to 7. Axle arrangement ( 1 ) according to claim 7, characterized by at least one pneumatic or hydropneumatic spring unit ( 4 ), which has a first warehouse ( 5 ) with the axis ( 3 ) and via a second bearing to the chassis ( 2 ) is connectable, wherein at least one of these two bearings ( 5 ) at least one force measuring unit ( 6 ) is arranged. Axle arrangement ( 1 ) according to claim 7, characterized by at least one hydropneumatic or pneumatic spring unit ( 4 ) over which the chassis ( 2 ) with respect to the axis ( 3 ), wherein the occurring axial forces due to the in the respective hydropneumatic or pneumatic spring unit ( 4 ) occurring pressures is determined. Axle arrangement ( 1 ) according to claim 8, characterized by at least one longitudinal rocker ( 7 ) over which the axis ( 3 ) on the chassis ( 2 ) and which has at least one warehouse ( 10 . 17 ) with the chassis ( 2 ), whereby at the bearing ( 10 . 17 ) at least one force measuring unit ( 6 ) is arranged. Axle arrangement ( 1 ) according to claim 10, characterized in that the longitudinal rocker ( 7 ) U-shaped and two parallel swing arms ( 8th ), wherein the front axle ( 3 ) via at least one pendulum joint ( 9 ) oscillating on the longitudinal rocker ( 7 ) and each rocker arm ( 8th ) via at least one warehouse ( 10 ) to the chassis ( 2 ), whereby at least one of these two bearings ( 10 ) at least one force measuring unit ( 6 ) is arranged. Axle arrangement ( 1 ) according to claim 10, characterized in that the axis ( 3 ) additionally via at least one Panhardstab ( 15 ) on the chassis ( 2 ), at least one further bearing ( 16 ), over which the Panhardstab ( 15 ) on the chassis ( 2 ) or to the axis ( 3 ), at least one force measuring unit ( 6 ) is arranged. Axle arrangement ( 1 ) according to claim 9, characterized in that the axis ( 3 ) with space links ( 24 . 25 ) is provided for independent suspension, wherein at least one bearing ( 29 ), via which a space link ( 24 . 25 ) to another component of the axle ( 3 ) or the chassis ( 2 ), at least one force measuring unit ( 6 ) is arranged. Front axle arrangement ( 1 ) according to claim 8, characterized in that the axis ( 3 ) unsprung on the chassis ( 2 ) is suspended. Method for detecting on an axis ( 3 ) of an agricultural work vehicle, the axis ( 3 ) over at least two camps ( 5 . 10 . 16 . 17 . 29 ), each having at least one rotational and / or translatory degree of freedom, and / or via at least one spring unit ( 4 ) on the chassis ( 2 ) of the work vehicle, characterized in that at least two bearings ( 5 . 10 . 16 . 17 . 29 ) and / or the at least one spring unit ( 4 ) the forces acting there are detected, whereby the detected forces as parameters for the design of a ballast, for the regulation of hydropneumatic or pneumatic spring units ( 4 ), for regulating a tire pressure, for controlling a chassis stiffness, for controlling a brake force distribution, for controlling a tractive force, for traction optimization, for controlling an attachment, for controlling a drive axle of a trailer and / or for controlling a drive and / or drive train control of the agricultural Work vehicle to be used.

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