DE112013004820T5 - Method and system for load transfer in a vehicle - Google Patents

Abstract

A method (600) and system (700) for controlling load transfers to a vehicle (200) comprising a bogie (220) having at least one front axle (230-1) and one rear axle (230-2). A method (600) comprising confirming (601) the driving condition of the vehicle, a determination (602) of a load transfer configuration for the vehicle (200) based on the confirmed (601) driving condition of the vehicle by operating a driver-operated operating member (300) for selection a load transfer configuration, generating (603) a control signal in a control device (710) that can be influenced by the driver-operated control element (300) to control the load transfer configuration according to the setting (602) made by the driver-operated control element (300) Sending (604) the generated control signal (603) from the controller (710) to a load transfer control mechanism (720) positioned in communication with the bogie (220) and controlling (605) load transfers to the bogie (220) via the control mechanism (720) according to the driver-operated control element (300 ) (602).

Description

Field of engineering

The invention relates to a method and a system in a vehicle. In particular, the invention provides a mechanism for regulating load transfers in a vehicle comprising a bogie having at least a front axle and a rear axle.

General state of the art

Vehicles with a bogie and / or Dreiachsaggregat are increasingly common in current vehicle fleets, partly due to the accessibility and partly due to the loading capacity. These vehicles are used in various applications and have different requirements for accessibility and different requirements for their use of load transfers.

Vehicle in this context means, for example, lorries, semitrailer trucks, delivery vans, vans, camper vans, work trucks, passenger vehicles, rescue vehicles, freight vehicles, vans, ATVs, wooden tugs, excavators, crane vehicles, tankers, motorcycles, wheel loaders, mopeds, motor scooters, sedans, sports cars, race cars. Bumper cars, flatbed trucks, boat trailers, lawn mowers, tanks, snowmobiles, snow groomer, caravan, off-road vehicle, tractor, go-cart, bus, combine harvester, agricultural machine or similar manned or unmanned motor vehicle designed for land-based geographic transport.

A bogie is a device that is usually under the rear section under a car or vehicle with 2, 3, 4, 5, etc. axles, with the aim of distributing the load of the vehicle on several axles, thus reducing the axle pressure Increasing cargo capacity and also distributing the wheel pressure on the road, for example, leads to less wear of the roads and tears less gravel when the vehicle is driven on a gravel road.

Trucks and similar vehicles are often built with a bogie, especially when used for heavy duty transport. A bogie has at least two axles with a center distance of less than two meters. In cases where a vehicle is built with three axles and the distance between the first and third axles is not less than five meters, this is referred to as a "three-axle vehicle" rather than a bogie.

A bogie of a truck is normally not rotatable like a bogie in rail vehicles, which causes some tire seal. To eliminate or at least reduce this tire wear, the wheels on one of the axles are sometimes rotatable so as to pivot outwardly as the front wheels rotate and follow the swing radius.

Dreiachsaggregat is the expression for the special axis aggregate axis with three axes. There may be one or more wheels on each axle end.

The wheel axles contained in a bogie axle may be either driving, in which case they are referred to as drive axles, or only rolling, in which case they are referred to as the caster axle. A bogie can only consist of drive axles or a combination of at least one drive axle and one or more trailing axles. When more than one axis is driving, the designs are sometimes referred to as tandem or tridem.

When transferring loads in a three-axle vehicle, see 1A having a trailing axle and two prior art drive axles, the weight is first transmitted from the trailing axle to both drive axles, see 1B , The load is then transferred from one drive axle to the other drive axle, see 1C , The reason for carrying out such a load transfer may be to increase the pressure on the pad to increase the friction and thus achieve better traction.

According to the existing technique, it is predetermined by parameters from which drive axle the weight should be transmitted, usually from the front drive axle to the rear drive axle. This means that the user has no possibility to adjust the load transfer to his requirements. It is only possible to select whether all the bogie axles should be engaged or whether the load should be transferred to a certain predetermined drive axle.

In summary, there is a need to improve the steering and control of load transfers in vehicles with a bogie.

Summary

It is therefore an object of this invention to adapt and control load transfers in a wheeled vehicle two or more axles to be able to solve at least one of the above problems and thus to achieve an improved vehicle.

According to a first aspect of the invention, this object is achieved by a method for regulating load transfers in a vehicle having a bogie with at least one front and one rear axle. The method includes determining the driving conditions of the vehicle. Further, the method includes determining a load transfer configuration for the vehicle based on the determined driving conditions of the vehicle by regulation via a driver-operated control to select a load transfer configuration. The method also includes generating a control signal in a control device that may be influenced by the operator-operated control to regulate the load transfer configuration according to the regulation by the driver-operated control. The method also includes transmitting the generated control signal from the controller to a load transfer control mechanism associated with the axle assembly. In addition, the method includes adjusting load transfers to the axle assembly via the control mechanism as adjusted by the operator-operated control member.

According to a second aspect of the invention, this object is achieved by a system in a vehicle. The system includes a bogie with at least one front axle and one rear axle to adjust load transmissions in the vehicle. The system includes a driver-operated control to select a load transfer configuration based on the determined driving conditions of the vehicle. In addition, the system includes a control device that may be influenced by the operator-operated control element and that is adapted to generate and transmit a control signal. In addition, the system includes a control mechanism adapted to receive the control signal and to adjust the load transfer to the axle assembly in accordance with the adjustment by the operator-operated control element.

By enabling the adjustment of the load transfer between the drive axles and thus varying the wheelbase, it is possible to adapt the vehicle characteristics such as the swing radius, the control characteristics and the axle load to the given driving conditions experienced by the driver. Thus, an improvement of the vehicle is achieved.

With variable load transfer between the drive axles, transport may be performed more efficiently, taking into account other aspects such as time, wear, and fuel consumption, in accordance with some embodiments.

Other advantages and other novel features are set forth below in the detailed description of the invention.

List of figures

The invention will be described in more detail with reference to the attached figures which illustrate embodiments of the invention:

1A is an illustration of a load transfer in a vehicle with a three-axis unit according to existing technology.

1B is an illustration of a load transfer in a vehicle with a Dreiachsaggregat according to the existing art.

1C is an illustration of a load transfer in a vehicle with a Dreiachsaggregat according to the existing art.

2 FIG. 10 is an illustration of load transfer in a vehicle having a three-axle unit according to an embodiment. FIG.

3A Fig. 4 is an illustration illustrating an embodiment of the invention.

3B Fig. 4 is an illustration illustrating an embodiment of the invention.

4A Fig. 4 is an illustration illustrating an embodiment of the invention.

4B Fig. 4 is an illustration illustrating an embodiment of the invention.

5A Fig. 4 is an illustration illustrating an embodiment of the invention.

5B Fig. 4 is an illustration illustrating an embodiment of the invention.

6 FIG. 13 is a flowchart illustrating one embodiment of a method. FIG.

7 is an illustration of a control device according to an embodiment of the invention.

Detailed description of the invention

The invention is defined as a method and system that can be implemented in any of the embodiments described below. However, this invention may be embodied in many different forms and is not to be construed as limited to the embodiments described herein, which instead are intended to illuminate and illustrate various aspects of the invention.

Other aspects and features of the invention will become apparent from the following detailed description when taken in conjunction with the accompanying drawings. However, the figures are to be considered as examples only of various embodiments of the invention and are not to be construed as limiting the invention, which is limited only by the appended claims. Furthermore, the figures are not necessarily to scale, and are intended to conceptually illustrate the aspects of the invention, unless otherwise specified.

2 represents a vehicle 200 which is suitable for load transfers through a Dreiachsaggregat. The vehicle 200 has a front wheel axle 210 and a rear bogie 220 on, that from a first drive axle 230-1 , a second drive axle 230-2 and a trailing axle 230-3 consists. The vehicle 200 is arranged so that it is in one direction of travel 240 drives forward. The terms front and rear refer in this context to the direction of travel 240 of the vehicle.

In the vehicle described above 200 is the set of bogies 220 ie a triaxial aggregate, just one example. The vehicle 200 For example, with a number of front wheel axles 210 be equipped. Furthermore, the vehicle 200 a rear bogie 220 in some embodiments, of any number of axes 230-1 . 230-2 . 230-3 may be, for example, two, three, four, five, six, ..., ∞, etc. The rear axle assembly may also be any combination of drive axles in various embodiments 230-1 . 230-2 and trailing axles 230-3 include. For example, in some embodiments, all axes 230-1 . 230-2 . 230-3 in the bogie 220 from drive axles 230-1 . 230-2 consist. In other embodiments, all axes 230-1 . 230-2 . 230-3 in the bogie 220 , except one axle, out of caster 230-3 consist.

This can also be expressed as: n = k + i, where n> 1 and k> 0, where: n = number of axles in the bogie 220 , k = number of drive axes 230-1 . 230-2 and i = number of trailing axes 230-3 ,

In some embodiments, the axes 230-1 . 230-2 . 230-3 in the bogie 220 be suspended in suspension devices, at least some of which have a resilient mounting with adjustable stiffness. Thus, the pressure on the axles 230-1 . 230-2 . 230-3 be distributed.

In some embodiments, the resilient attachment may be pneumatically or hydraulically controllable, including, for example, air suspension with air supply and a control valve for regulating the supply of air.

The vehicle 200 or, rather, his driver, sometimes might want the load weight over all axles 230-1 . 230-2 . 230-3 of the bogie 220 is distributed. Thus, it is possible to maximize the payload size since the load weight is thus on all axles 230-1 . 230-2 . 230-3 can be distributed. An example of this will be illustrated later and in conjunction with the description of 3A and 3B discussed.

However, the driver of the vehicle, for example, when driving on a slippery surface, a load transfer from the front drive axle 230-1 on the rear drive axle 230-2 prefer, as related to the description of 4A and 4B is illustrated and discussed. For vehicles 200 that drive on a slippery surface can be preferred in certain cases, only the trailing axle 230-3 to relieve and for reasons of accessibility this weight on the drive axles 230-1 . 230-2 transferred to. The trailing axle 230-3 can either continue to roll on the road surface but with reduced or zero load; Alternatively, the trailing axle 230-3 be raised.

However, a shortest wheelbase may be required to improve the swing radius, especially in vehicles 200 that are driven on a narrow street and / or to avoid unnecessary tearing of the road. It is then advantageous and desirable to load transfer from the trailing axle 230-3 and the rear drive axle 230-2 on the front drive axle 230-1 perform as in 5A and 5B illustrated.

With this type of load transfer the swing radius is improved, but the stability in the vehicle 200 and the accessibility to the vehicle on a slippery surface are significantly worse than when the load transfer to the rear drive axle 230-2 is carried out. Also in this alternative, the trailing axle 230-3 either continue to roll on the road surface but with reduced or zero load; Alternatively, the trailing axle 230-3 be raised.

The present invention also relates to configurations in which, in addition to the possibility that the trailing axle 230-3 can be raised, including the drive axle 230-1 of the axle can be raised. This configuration makes liftable axis configurations 230-3 and liftable drive axle 230-1 and the possibility gained that load transfers between the axes 230-1 . 230-2 and 230-3 can be performed. It leads to more possibilities of combinations of the load transfer function in that the wheelbase and the Radschwenkradius can be adapted to the driving conditions. For example, if a load transfer from the front drive axle 230-1 on the rear drive axle 230-2 performed and the front drive axle 230-1 is lifted, the pressure on the rear drive axle 230-2 increased and thus gained a longer wheelbase and better stability during normal driving on the highway. It is not necessary, the axes ( 230-1 and or 230-3 ) to obtain a better swing radius, it may be sufficient to load one of them on the drive axle 230-2 and, if possible, also 230-1 and or 230-13 to raise.

It is not uncommon for all of these different configurations to be found in the 3 to 5 the axes 230-1 . 230-2 . 230-3 in the bogie 220 are needed to be needed in the same vehicle. An example of such a vehicle 200 are milk collection vehicles. In order to avoid them tearing the yard unnecessarily, and in addition to be able to turn with the smallest possible turning radius, it is an advantage for the vehicle when driving in the yard 200 , a load transfer to the front drive axle 230-1 in the axle of the vehicle 220 to be able to choose. Other examples of vehicles 200 that can benefit from a reduced swing radius are vehicles 200 that need to be driven in confined spaces such as a garage; Rescue vehicles, such as fire engines and the like, which must drive near a fire, and forest vehicles, which must drive between trees, etc.

However, for road transport, the vehicle may instead be preferable for improved control, stability and traction 200 with a load transfer to the rear drive axle 230-2 to drive, especially in slippery roads.

If the vehicle 200 has picked up a load, for example milk, if the vehicle 200 a milk truck is, it can be beneficial to load on multiple axles or even all axles 230-1 . 230-2 . 230-3 in the bogie 220 to distribute.

The activation of the function can be done with a control element 300 be solved, for example in the form of a handle 310 or a switch with three positions or such, by which the driver is enabled to select in some embodiments between different load transfers, which in the 3B . 4B and 5B is illustrated.

The construction of this control element 300 in the figures is to be regarded only as an example of a construction. For example, the control element 300 be prompted for the various alternatives, such as "small swing radius required", "heavy load" and / or "highway" or similar texts. Furthermore, the operating element 300 be designed as a switch, number of pushbuttons, sliders, software button or the like.

Thus, the driver obtains the ability to adjust the load transfer of the vehicle to the driving situation, the road condition and the load, resulting in an improved vehicle 200 with improved handling, especially in situations where a small swing radius is an advantage.

6 illustrates an example of an embodiment of the invention. The schedule in 6 illustrates a method 600 to regulate load transfers in a vehicle 200 that is a bogie 220 with at least one front axle 230-1 and a rear axle 230-2 includes. The bogie 220 may in at least two drive axles in certain embodiments 230-1 . 230-2 and at least one trailing axle 230-3 include. The bogie 220 In various embodiments, a triaxial aggregate, a four-axle aggregate, a five-axle aggregate, a six-axle aggregate, a seven-axle aggregate, an eight-axle aggregate and / or a nine-axle aggregate, etc. may be included.

To transfer the load to the vehicle 200 To regulate correctly, the procedure can 600 a number of steps 601 to 605 include. However, it should be understood that certain portions of the steps described herein are included only in some alternative embodiments of the invention. Furthermore, the steps described here 601 to 605 be performed in a slightly different time sequence than by the Numbering indicated, and some of them can be completed in parallel to each other. The procedure 600 includes the following steps:

step 601

The driving condition of the vehicle is determined.

This determined driving condition, which may be the existing or required condition, may include: reduced swing radius, improved control characteristics and traction and / or load maximization. The driving condition can be confirmed or determined by the driver of the vehicle. The driver may determine these driving conditions based on prevailing environmental conditions and / or vehicle-related information. Environmental conditions include, for example, the driver taking into account the current road conditions, geographical location and / or weather conditions. But the driver also takes into account vehicle-related information, such as the load of the vehicle and / or the handling of the vehicle. As driving behavior is for example referred to when the vehicle tilts or brakes on different wheels engage differently or instabilities in the steering wheel. The determination is in connection with driving the vehicle and based on vehicle-related information. In this way, the regulation of load transmissions may be based on the current road condition, the geographical position, the weather condition, but also on the basis of information about the driving behavior of the vehicle and / or the vehicle load. In certain driving situations, it may be advantageous to distribute the load on multiple axles or on all axles in the axle assembly in order to maximize the payload size.

In an alternative embodiment, the driver is via the communication module 740 informed of the prevailing environmental conditions and / or vehicle-related information, and the driver can thus determine the driving condition of the vehicle. The communication module 740 is adapted to environmental signals representing the prevailing environmental conditions from the control device 710 but also vehicle-related information, such as information about the vehicle load and information about the driving behavior of the vehicle. Ambient signals (not shown in the figure) represent, for example, information about the friction between the vehicle and the road surface, the geographical position and / or the prevailing weather conditions obtained via a location system. The control device 710 receives data from the in-vehicle systems and sensors to generate environmental signals and vehicle-related information. Examples of the in-vehicle systems and sensors include tilt sensors, gyroscopes, accelerometers, steering wheel sensors, yaw rate sensors, temperature sensors, rain sensors, load sensing sensors, but information from, for example, the brake system and the stability system may also be used. Based on the information about the prevailing environmental conditions and the vehicle-related information, the driver can determine the driving conditions of the vehicle and thus the regulation of the load transmission can be made.

step 602

A load transfer configuration for the vehicle 200 is determined on the basis of 601 Driving conditions of the vehicle determined by a driver-operated control 300 is set to select a load transfer configuration. Thus, the load transfer configuration for the vehicle becomes 200 determined on the basis of the driving conditions determined by the driver. If the driver believes that he will drive the vehicle in a slippery-road environment, the driver selects a driver-operated control 300 the load transfer function best suited to the prevailing environmental conditions, such as in this case slippery road conditions.

The driver-operated control element 300 , which is adjustable according to a load transfer configuration, includes: Load distribution to all in the bogie 220 included axes 230-1 . 230-2 , Load transfer to the rear axle 230-2 in the bogie 220 and load transfer to the front axle 230-1 in the bogie 220 ,

The determination of the load transfer configuration can be made such that the load transfer to the front axle 230-1 in the bogie 220 can occur if the driver desires a reduced swing radius. Furthermore, the load transfer to the rear axle 230-2 in the bogie 220 occur when the driver desires improved control characteristics and improved traction. The load distribution, according to some embodiments, also on all in the axle 220 included axes 230-1 . 230-2 occur when a maximization of the load is desired.

step 603

A control signal is in a control device 710 generated by the driver-operated control element 300 can be influenced to the load transfer configuration according to the regulation 602 by the driver-operated control element 300 to regulate.

The adjustment of the load transfer is made according to some embodiments of a first load transfer configuration, in which the load distribution to all in the axle 220 included axes 230-1 . 230-2 . 230-3 takes place, either on the front axle 230-1 or the rear axle 230-2 in the bogie 220 , Such adjustment of load transfer may involve load transfer from the trailing axle, in accordance with some embodiments 230-3 on the drive axles 230-1 . 230-2 to be started.

step 604

The generated control signal 603 is from the control device 710 to one in conjunction with the bogie 220 located control mechanism 720 sent for load transfers.

This control signal may be sent via an interface, which may in some embodiments consist of a wireless interface, but also of a wired interface. The wireless interface may be formed from a wireless transmitter based on wireless communication technology such as 3rd Generation Partnership Project (3GPP), Long Term Evolution (LTE) (Long Term Evolution), LTE Advanced (Advanced LTE), Evolved Universal Terrestrial Radio Access Network (E-UTRAN) (Universal Terrestrial Radio Access Network), Universal Mobile Telecommunications System (UMTS), Global System for Mobile Communications / Enhanced Data Rate for GSM Evolution (GSM / EDGE) / enhanced data rate for GSM evolution), Wideband Code Division Multiple Access (WCDMA), World-Wide Interoperability for Microwave Access (WiMax), Wireless Local Area Network (WLAN) Network), Ultra Mobile Broadband (UMB) (ultra mobile broadband), Bluetooth (BT) or an infrared transmitter, which are mentioned here as some possible examples of wireless communication.

In some embodiments, the communication may be over a communication bus. Such communication may be arranged to include a number of electronic control devices (ECUSs) or controllers and various ones in the vehicle 200 arranged components connects.

step 605

The load transfer to the axle unit 220 is about the control mechanism 720 according to the setting 602 by the driver-operated control element 300 regulated.

7 illustrates an embodiment of a system 700 in a vehicle 200 , whose system 700 a bogie 220 with at least one front axle 230-1 and a rear axle 230-2 includes to the load transfer in the vehicle 200 adjust. The bogie 220 includes at least two drive units 230-1 . 230-2 and at least one trailing axle 230-3 ,

The system 700 includes a driver-operated control element 300 for selecting a load transfer configuration based on the determined driving condition of the vehicle. This determined driving condition, which may be the existing or required condition, may include: reduced swing radius, improved control characteristics and traction and / or load maximization. The driving condition can be confirmed or determined by the driver of the vehicle.

Furthermore, the system includes 700 a control device 710 caused by the driver-operated control element 300 can be influenced and is adapted to generate and send a control signal to adjust the load transfer.

The system 700 also includes a control mechanism 720 which is adapted to receive the control signal and according to the setting by the driver-operated control element 300 the load transfer to the axle unit 220 adjust.

To correctly generate and send the control signal for setting the load transfer, the control device comprises 710 a number of components, which are described in greater detail in the text below. Some of the described subcomponents occur only in some but not necessarily all embodiments. There may also be some additional electronic components in the control device 710 present, which are not absolutely necessary to the inventive function of the control device 710 to understand.

The control device 710 includes a processing circuit 730 , a communication module 740 and in some embodiments a memory 750 ,

The communication module 740 is suitable for signals from the driver-operated control element 300 to recieve. These signals from the control 300 can be received over a wireless or wired interface. The communication module 740 is also set up for instructions to the control mechanism 720 to send, with the control mechanism 720 in turn affects the load transfer of the vehicle. The communication module 740 According to one embodiment, it is suitable for the control device to transmit ambient signals and / or vehicle-related information representing the prevailing ambient conditions and vehicle-related information 710 to recieve. The control device 710 receives data from the in-vehicle systems and sensors to be able to generate environmental signals and vehicle-related information.

The communication module 740 In some embodiments, it may consist of a separate transmitter and receiver. The communication module 740 In some embodiments, it may consist of a transceiver capable of transmitting and receiving radio signals, and parts of the structure, such as the antenna, are connected to the transmitter and receiver. Furthermore, the communication module 740 suitable for wireless information transmission over a wireless interface, such as: wireless transmitters based on wireless communication technology such as 3rd Generation Partnership Project (3GPP), Long Term Evolution (LTE), LTE-Advanced (Enhanced LTE), Evolved Universal Terrestrial Radio Access Network (E-UTRAN) (Universal Terrestrial Radio Access Network), Universal Mobile Telecommunications System (UMTS) (Global Mobile Telecommunication System), Global System for Mobile Communications / Enhanced Data Rate for GSM Evolution (GSM / EDGE) (Gobal Mobile Communication / Enhanced Data Rate for GSM Evolution), Wideband Code Division Multiple Access (WCDMA), World-Wide Interoperability for Microwave Access (WiMax), Wireless Local Area Network (WLAN) (wireless local area network), Ultra Mobile e Broadband (UMB) (ultra-mobile broadband), Bluetooth (BT) or an infrared transmitter, to name a few possible examples of wireless communication.

However, the communication module 740 in some embodiments, especially for a wired exchange of information with the control 300 , with the control mechanism 720 and / or the data bus or communication bus of the vehicle. Such a communication bus is arranged to include a number of electronic control devices (ECUs) and various ones in the vehicle 220 arranged components connects. The communication bus of the vehicle may consist of one or more of a cable, a data bus such as a Controller Area Network (CAN), a Media Oriented Systems Transport (MOST) or other bus configuration, or a wireless connection, for example according to one of the above-mentioned techniques.

The above-mentioned processing circuit 730 For example, it may consist of one or more central processing units (CPUs), microprocessors, or other logic designed to interpret and execute instructions and / or read and write data. The processing circuit 730 may handle data for input, output, or data processing of data, as well as caching data, control functions, and the like.

In some alternative embodiments, the control device comprises 710 a storage device 750 , which consists of a storage medium for data. The storage device 750 may for example consist of a memory card, a flash memory, a USB memory, a hard disk or similar data storage devices, for example, any of the following group: a ROM (Read-Only Memory), a PROM (Programmable Read-only memory), an Erasable PROM (erasable programmable read only memory) EPROM, a flash memory, an Electrically Erasable PROM (EEPROM), etc., in various embodiments.

Furthermore, the invention comprises a computer program for adjusting the load transfer to a vehicle 200 that is a bogie 220 with at least one front axle 230-1 and a rear axle 230-2 includes. The computer program is set up for the procedure 600 according to at least one of the steps described above 601 to 605 execute when the computer program is in a processing circuit 730 in the control device 710 is performed.

The method according to the steps 601 to 605 For setting a control algorithm to the stress level of a driver may be through one or more processing circuits 730 the control device 710 be implemented in conjunction with a computer program code to one, several, any or all of the steps described above 601 to 605 perform. Thus, a computer program can provide instructions for performing the steps 601 to 605 then into the processing circuitry 710 getting charged.

Some embodiments of the invention also include a vehicle 200 that is the system described above 700 includes.

Claims (6)

Procedure ( 600 ) to regulate load transfers to a vehicle ( 200 ), which is a bogie ( 220 ) with at least one front axle ( 230-1 ) and a rear axle ( 230-2 ), characterized by: confirmation ( 601 ) of the driving condition of the vehicle, determination ( 602 ) a load transfer configuration for the vehicle ( 200 ) on the basis of the confirmed ( 601 ) Driving condition of the vehicle by setting a driver-operated operating element ( 300 ) for selecting a load transfer configuration, generation ( 603 ) of a control signal in a control device ( 710 ) generated by the driver-operated control element ( 300 ) can be influenced in order to determine the load transfer configuration according to the load-actuated control element ( 300 ) ( 602 ), send ( 604 ) of the generated control signal ( 603 ) from the control device ( 710 ) to one in connection with the axle assembly ( 220 ) control mechanism ( 720 ) for load transfers and regulation ( 605 ) the load transfer to the axle unit ( 220 ) via the control mechanism ( 720 ) according to the driver-operated control element ( 300 ) attitude ( 602 ), whereby the provision ( 602 ) of the load transfer configuration is such that the load transfer to the front axle ( 230-1 ) in the axle assembly ( 220 ), if the driver wants a reduced turning radius, load transfers to the rear axle ( 230-2 ) in the axle assembly ( 220 ), if the driver wants improved control characteristics and traction, and load distribution on all axles ( 230-1 . 230-2 ) in the axle assembly ( 220 ) occurs when a load maximization is desired, and wherein the bogie ( 220 ) at least two drive axles ( 230-1 . 230-2 ) and at least one trailing axle ( 230-3 ) and where the attitude ( 603 ) of the load transfer from the load transfer configuration, where the load distribution to all in the bogie ( 220 ) axes ( 230-1 . 230-2 . 230-3 ), either on the front axle ( 230-1 ) or the rear axle ( 230-2 ) in the axle assembly ( 220 ), with the load transmission from the trailing axle ( 230-3 ) on the drive axle ( 230-1 . 230-2 ) begins. Procedure ( 600 ) according to claim 1, wherein the driver-operated operating element ( 300 ) is adjustable to a load transfer configuration, comprising: load distribution to all in the axle assembly ( 220 ) axes ( 230-1 . 230-2 ), Load transfer to the rear axle ( 230-2 ) in the axle assembly ( 220 ) and load transfer to the front axle ( 230-1 ) in the axle assembly ( 220 ). Procedure ( 600 ) according to claim 1 or 2, wherein the confirmed ( 601 ) Driving conditions include: reduced swing radius, improved control characteristics and traction and load maximization. System ( 700 ) in a vehicle ( 200 ), whereby its system ( 700 ) a bogie ( 220 ) with at least one front axle ( 230-1 ) and a rear axle ( 230-2 ) to transfer loads to the vehicle ( 200 ), characterized by: a driver-operated control element ( 300 ) for selecting a load transfer configuration based on the determined running condition of the vehicle, a control device ( 710 ) generated by the driver-operated control element ( 300 ) and is adapted to generate and transmit a control signal, and a control mechanism ( 720 ), which is adapted to receive the control signal and according to the by the driver-operated control element ( 300 ) setting the load transfer to the bogie ( 220 ), and wherein the axle assembly ( 220 ) at least two drive axles ( 230-1 . 230-2 ) and at least one trailing axle ( 230-3 ). Vehicle ( 200 ), the system ( 700 ) according to claim 4, which is suitable for the control of load transfers according to the method ( 600 ) is suitable according to claim 1 to 3. Computer program for controlling load transfers to a vehicle ( 200 ), which is a bogie ( 220 ) with at least one front axle ( 230-1 ) and a rear axle ( 230-2 ), characterized in that the method ( 600 ) is carried out according to one of claims 1 to 3, when a computer program in a processing circuit ( 730 ) in a control device ( 710 ) is performed.

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