FI119484B - Method and apparatus for collecting information on the load of a heavy goods vehicle - Google Patents

Description

119484

METHOD AND EQUIPMENT FOR THE DATA COLLECTION OF HEAVY VEHICLE LOADS

FIELD OF THE INVENTION

The invention relates to the collection of data on the loads of heavy-duty vehicles, in particular the mass of the load.

BACKGROUND OF THE INVENTION

The monitoring and management of heavy goods transport is an issue of interest to companies and authorities alike in terms of economic efficiency, energy consumption, emissions and safety. For example, fuel consumption during transport is a variable tracked with interest by different actors, with both economic and environmental impacts. Fuel consumption can be influenced in many ways. Different vehicles basically have different energy savings depending on, for example. the engine and the structure of the vehicle 20, for example with respect to air resistance. The driving behavior of the driver is also very important.

• · · ϊ,., Ϊ́ For example, in bus transport, it has been estimated that there is a difference of up to 30% in fuel consumption between different drivers.

• · ·. * · *. 25 Fuel consumption, and thus • · ♦ *:., Transport costs and environmental emissions • · · can be influenced not only by the choice of equipment, but also by training drivers and adapting attitudes to economical driving. In principle, 30 different ways of driving, such as · · · · · · · · · · · · · · · · · · · · · · · incentives linked to energy efficiency could be possible. Different ka-. However, comparing the chassis options and the economics of different drivers requires that all factors affecting performance, such as fuel consumption, * · '* · 35 transportable mass and the characteristics of the route • · ί. reliably. Thus, fuel consumption data for 2 119484 is generally available in some form. Fuel consumption could be a sufficient indicator of driving standard buses, although any seasonal variations in passenger numbers, for example, also lead to load-related changes that are independent of driving economy. In freight transport, the weight of the load easily plays an even greater role in comparing transport economics or energy efficiency. The load capacity of 10 vehicles to be carried in the largest vehicle combinations permitted by Finnish legislation may be as much as forty thousand kilos. In this case, errors in load estimation can easily lead to even major errors in estimating economy or energy consumption. At present, estimates of load mass can be based, for example, on consignment notes or so-called. to bulk density whereby, irrespective of the nature of the goods, their mass is estimated by volume. It is clear that the determination of the load by these methods is inaccurate.

20 There is also a safety aspect associated with the amount of vehicle load. The amount of the load affects the handling characteristics of the vehicle and even the durability of the road, and dangerous loads can be caused by such an overloaded load.

For this reason, for each vehicle type, there are: ♦ '· 25 different maximum mass limits for which ···. ···. naturally requires supervision. Currently, the ··· »; . ·, The train is mainly carried out by means of various movable • · · "!. * Or stationary weighing equipment. Based on these, the · · *** control in which the vehicle in traffic is stopped by means of transported weighing equipment • ♦ · hi i. however, both time-consuming ··· and inevitably by nature random sampling · · · · · · · · · · · · · · · · · · · · · · · · · · · ·

• · T 35 In addition to the above methods, a variety of mechanical, * · V * | to determine the mass of the vehicle based on vehicle depression or air suspension 3 119484 bellows pressures. Such means may include, for example, a simple scale and vehicle inclination indicator, which, when viewed, provide at least a rough estimate of the vehicle mass. In addition to the inaccuracy of the measurement result, such solutions also have the problem of forwarding mass data. Solutions based on vehicle tire pressure for determining vehicle axle weight have also been disclosed. For example, US6688168 discloses a method in which the axle weight of a vehicle is determined by tire pressure and tire rolling radius. However, determining the mass of a vehicle based on the axle weights of the various axles is quite complex.

15 In the light of the foregoing, it is clear that there is a great need for reliable determination of the load of heavy goods vehicles, which could be done with the least possible means and preferably automatically, while driving, irrespective of time and place. In all of the examples described above, it would still be advantageous if information on the load volumes of different vehicles could be collected for analysis and further use of the data in aggregate form.

· »♦ · • ♦ ·

. PURPOSE OF THE INVENTION

♦ · ·

The object of the invention is to eliminate the disadvantages mentioned above:

··· ♦; * · *. In particular, it is an object of the invention to provide ·· # completely new method and hardware data. . • • · "*. * Which data collection can be carried out automatically *; · * tomorrow during the driving event without separate: weighing measures or equipment.

• * · • * • * • · · · • • * · • · · • 4 119484

SUMMARY OF THE INVENTION

The method for collecting information on the load of a heavy-duty vehicle according to the invention is characterized in what is set forth in claim 1.

The method collects information on the load of a heavy-duty vehicle. Heavy-duty vehicle means trucks, trucks, buses and the like used especially in road transport. According to the invention, the method determines the dependence of the work Wr required for moving the vehicle on the displacement and mass of the vehicle. The determination can be made on a vehicle-by-vehicle basis, but for a large number of vehicles of the same type, it is preferable to use 15 times the type-specific dependencies. Transition here means both the distance traveled and the altitude of the route being traveled. "Mass of the vehicle" means the total mass of the unladen vehicle as well as that of the load. From said dependence, it is possible to further determine, for example, the work required to overcome the frictional forces resisting the movement of the vehicle relative to the mass of the vehicle. Also, according to the invention, the method · ·: ** collects driving position information at a specific time during the driving event: V 25 vehicle position information and vehicle operating information and determines the basic position and operating information •: *; on the road during the driving event measurement • · ·. * · *. vehicle distance s, vehicle altitude change · ·, vehicle speed v, and vehicle. . Work to move 30 watt W. Vehicle operating information * * * *. * Means, for example, information about the vehicle speed • · * · "* and engine operating information such as torque and engine speed. Vehicle ***; distance s, altitude change Ah, and velocity v else »*, 35 it is possible to determine the position information | ], but on the other hand, for determining the change of distance and speed, the speed collected as vehicle operating data and the duration of the measurement period can also be utilized to determine the change in distance and speed. the displacement and mass of the vehicle, the distance s of the vehicle during the measurement period, the change in height Ah, the change in speed v and the work W to move the vehicle and the principle of energy conservation. , the change in the potential energy of the vehicle and the change in the kinetic energy of the vehicle as a whole, since the displacement, speed and 15 work done during the measurement period as well as the work needed to move the vehicle known, the mass of the vehicle can be solved as the only unknown factor in the energy conservation equation. According to the invention, the mass of the vehicle is also transmitted to a central data collection system for mas-20 for storage or further processing. The information about the mass of the vehicle load may be either the mass of the load itself or a quantity proportional to the mass of the vehicle load, · ** .. from which the mass of the load may be determined by the central system. . *. 25 masses. Further processing may be, for example, traffic. ···. • ·. * "t reviewing the energy efficiency of a company's transports by comparing mass data with fuel consumption; or · · *". * control of maximum transport mass limits by public authorities.

In one embodiment of the invention, driving · ·: tests are performed to determine the dependence of the work required to move the vehicle on Wr • · *:. ,, ϊ the displacement and mass of the vehicle. tämiseksi. Can run on known standard • · Φ loads with known load sizes, and then determine the work done • · * "35 based on operational information available from the vehicle data bus. Known route 119484 or in-vehicle positioning system can be used to determine distance traveled and altitude changes! An alternative to driving tests is to determine these dependencies by theoretical calculation.

In a preferred embodiment of the invention, the location information of the vehicle 5 is collected by means of GPS satellite positioning equipment installed in the vehicle. This is useful in particular for obtaining vehicle position elevation data, but other transitions can also be determined using such hardware. The positioning apparatus 10 may be used to collect location data both during the driving event and during any driving tests. On the latest heavy-duty vehicles, GPS equipment is often already installed, so no additional installation is required.

15 Vehicle activity data is preferably collected from the vehicle data bus. In newer heavy-duty vehicles, this type of electronic data bus, which typically collects information about vehicle engine operation and vehicle operating conditions, is already standard. There are 20 different buses, common bus types are CAN, FMS and OBD. The data bus provides information eg. vehicle speed, engine torque and rotation; ***: speed and fuel consumption.

* · · Ϊ *. In a preferred embodiment of the invention, • ···, 2 5 is collected at intervals during the driving event by the vehicle · · «V · '.' from the data bus, the vehicle engine operating data and ·. * "determine the instantaneous · · ··· engine power P ± of the vehicle. The work Vt used to move the vehicle during the measurement period t is determined by the instantaneous engine power Pi and the duration of the measurement cycle. · ·; · La. Engine performance data includes, for example, the torque and engine speed mentioned above, which can be used to directly calculate engine power. • • * • · l ”further reduces the power required by various accessories • · **; · '35 and various mm . *: **: Losses in the transmission to achieve the movement of the vehicle to the: * ·. · increased power By definition the work is · · 7 119484 power multiplied by time, the work done to move the vehicle is further calculated from the instantaneous power. for example, it may take one second to collect data.

In one embodiment of the invention, the load mass mJoad is calculated by first determining the dependence of Wr on the vehicle mass and displacement on the mass of the vehicle and its displacement on the forces opposing the movement of the vehicle K. Then the energy conservation equation W = Kms + mgAh + (ιηΔ (v2) 2, where g is the gravitational acceleration in relation to the mass m of the vehicle. The known mass m0 of the empty vehicle is subtracted from the mass m of the vehicle thus obtained. The anti-movement forces of the Drive-15 advise here mean steady-speed driving while anti-movement friction forces. Motion is also resisted by air resistance, but its importance, especially at low speeds, is insignificant in that it can be neglected in the 20 examinations without major error. The first term on the right side of the image made to overcome the energy conservation liikevastusten ϊ work, the other of potential energy change * · ·., and the third kinetic energy of the vehicle change.

. . *. In another embodiment of the invention, * · · • · ·, ··· is defined. In addition to the work required to move the aforementioned vehicle, the dependency of the work required for moving the empty vehicle to the vehicle is the displacement and speed of the vehicle. This can be done, for example, by driving tests. It is also possible to determine dependency • ·: computationally. The load mass miosltj is calculated from ί ,,, ί in this application by first determining the dependence of the vehicle,) ·, work needed to move Wr on the driving mass and displacement of the vehicle "* 35 to determine the force of the vehicle" * " Then, the dependence of the work required to move the empty vehicle wro 8 119484 on the vehicle displacement and speed over the measurement period with the vehicle s, the change in vehicle position height Ah and the vehicle speed v is determined. w0 The proportion ffjoad of the work W during the measurement period is determined by subtracting the proportion W0 of the work W from the work done. Finally, the energy conservation equation Wio * d = KmioadS + 10 mloadgAh + (mi oa dA (^)) / 2 is solved. -cream, skim man mass mloa (i relative to this. In this application, it is not necessary to know the mass of the empty vehicle to determine the load.

During the measurement period, the vehicle engine 15 torque is preferably at least 70% of the maximum engine torque value to ensure sufficient accuracy in the work done to move the vehicle and thus the load. At low torques, much of the power is consumed by various losses, and the power used to actually move the vehicle is inaccurate.

The distance traveled by the vehicle during the measurement period edullisesti: shall preferably be at least 50 m for the position and function of the vehicle needed to determine the load. 25 data and hence further load mass determination ···. · * ·. to ensure sufficient accuracy. As the distance shortens, the inaccuracy of both location and vehicle operational information increases • · «* 11. *, leading to errors in the determination of the load i ** · *.

The method preferably calculates the mass of the load during the driving event several times on the basis of different measuring periods and calculates the resulting mass. [·. averages weighted over lengths of measurement periods to improve the accuracy of the calculation. Thus, it is possible to refine the first ***** estimate of the load, which may be obtained even after a short run: \ j as the drive continues.

9 119484

Preferably, the mass of the vehicle load is transmitted to the central system during the driving event via the wireless communication medium. This may be, for example, a GSM or GPRS transmitter. Alternatively, in another embodiment of the invention, information about the mass of the vehicle load is stored on the intermediate storage medium and transmitted to the central system after the driving event. The intermediate storage medium may be, for example, a memory card in which the data is stored by means of a computer installed in the vehicle or the like.

It is possible to combine the method of the invention with the collection of fuel consumption data. Data, like other vehicle operating data, can be collected from the vehicle data bus and transmitted to the Central System along with the mass data.

The process of determining the work required to move the entire vehicle to determine the mass of the vehicle load and to transfer the mass data to the central system may be arranged as an automated, computer-controlled operation. Thus, for example, the method of the invention does not require any unusual action on the part of the driver.

. ** ·. For the apparatus according to the invention to provide information on the load of a heavy-duty vehicle, it is • * ·] φ. 25 is characterized by what is stated in claim 13.

* «* ··· * According to the invention, the apparatus includes: - the first determination means for moving the vehicle • 4 # to determine the dependence of the required work Wr on the displacement 30 and the mass of the vehicle. For example, the first assay lines can be used to collect vehicle location information and operational information during possible driving tests. data and determine these dependencies based on these * · * * ··· *. Likewise, the apparatus includes, in accordance with the invention t · * ... * 35, means for collecting vehicle location information:: ··· and vehicle activity data at specific: time intervals during the driving event. The collection tools may be the same as the ones used to collect the location and operational data during the driving tests. The apparatus further includes, in accordance with the invention, second determination means for determining vehicle travel distance s, vehicle altitude change Ah, vehicle speed v, and vehicle movement work w based on location data and operating data during the driving event measurement period. The other assay means may be the same means for determining the corresponding quantities during any driving tests. These means may include, for example, a computer for calculating said quantities based on location and activity data. The apparatus also includes, in accordance with the invention, calculating means for calculating the load of the vehicle load J7iioad as a function of the work Wr required for moving the vehicle, the displacement and mass of the vehicle, the distance s traveled,

20 work on changes and moving the vehicle W

and the principle of energy conservation. The counting line can be, for example, a computer, which can be. * ··. same as the above mentioned computer in other configuration tools · "*.

• M

. 25 means of transferring information from the mass of a vehicle • * · to a central data collection system.

ί.ϊ: In one embodiment of the invention, the collecting means comprises an in-vehicle GPS-30 satellite positioning apparatus for collecting vehicle location information. This is the case with the latest vehicle ***. often butter already installed.

··· \ The collection means preferably includes collecting means to collect vehicle activity data from the vehicle data bus. Most modern heavy-duty vehicles * • j ··· typically have this type: an electronic data bus for collecting information about engine activity and other vehicle information, so that operational data can be obtained directly from the bus by means of appropriate collecting means. The collecting means may include, for example, a computer.

The apparatus may further include third determination means for determining the dependence of work Wr0 required for moving an empty vehicle on vehicle displacement and speed. The third assay means are preferably the same as the above-mentioned first assay means.

Preferably, the transmission means include a wireless communication means for wirelessly transferring information from the mass of the vehicle load to the central system. Such means of communication may be, for example, a GSM or GPRS transmitter connected to a computer used for the calculation of the load 15. Alternatively, the transport means may include an intermediate storage medium for storing and transferring the mass data via the intermediate storage medium to the central system after the driving event. Such an intermediate storage medium may be, for example, a memory card on which the mass data is stored by means of a computer used for calculation.

The aforesaid • t * · * ·, used in various functions. the computer may be pre-installed in the vehicle. . ·. 25 trip computer or other electronic control unit, ···. additional functions that may be needed can be organized · · programmatically. Thus, it is possible to carry out the invention with very few accessories.

The invention provides a number of significant advantages 30 compared to prior art solutions for collecting information on the mass of a vehicle load. First of all, / no separate weighing equipment is needed "when mass can be determined at the time of the driving event, • · · - - I" based on the vehicle location and operational data.

* · "** 35 This also significantly speeds up the determination of mass," "** compared to separate weighing. In relation to: * ·, for example, the volumetric weighting method substantially increases the accuracy of mass determination. After determining, for example, the work required to move a vehicle undergoing a road test, the determination of the mass of the entire load and the further transfer of the mass data to the central system can be arranged to be automated by computer control. The invention can utilize vehicle-ready equipment which, in addition to simplicity, enables low costs. Thus, the invention provides a highly efficient and reliable way of collecting real-time load data from a large number of vehicles in traffic, which is a significant development for both the haulier who monitors the driving behavior of his company drivers and the authorities responsible for investigating traffic emissions.

LIST OF FIGURES

In the following, the invention will be described in detail by way of example embodiments with reference to the accompanying drawings, in which Figure 1 is a schematic diagram of one embodiment of the invention, and Figure 2 illustrates an embodiment of the invention. 25 hardware and its operation.

mmm m m m m • • m

DETAILED DESCRIPTION OF THE INVENTION

• · · · · · · · ·

The diagram in Figure 1 illustrates the steps of the method of the invention. They are presented in two main phases: 3 0, the first of which describes the amount of load and the • * · ·. ···. it transmits the load information to the central system.

• · * "The first main step is divided into several stages, as shown in the figure. The method shown in the figure first involves driving tests under different loads, Φ 35 to determine the dependence of the work Wr needed to move the vehicle. • · 13 1 19484 based on mass, mass and velocity, first determining the coefficient K to determine the forces opposing the movement of the mass of the vehicle, secondly determining the work Wro required to move the unladen vehicle relative to distance traveled, altitude change and velocity change. with the installed GPS positioning system, the vehicle position information at specific intervals and the vehicle information lane driving information from the vehicle lane to determine the distance traveled by the vehicle during the measurement period of the driving event and the position of the vehicle s the altitude change Ah and the change in vehicle speed v from the operational data. Based on the engine operating information 15, the instantaneous engine power P ± of the vehicle is determined further and the work done during the measurement period to move the vehicle during the measurement period W0 and the displacement and speed data determine the proportion of empty vehicle W0 during the measurement period. work done. The load share of the work done by Wioad is determined by subtracting the percentage of the empty vehicle W0 during the measurement period. . *. 25 of the total work done to calculate it. • Then, · ·, ···. any load mass mioad by solving the corresponding * · energy conservation equation Wl0Ad = Kmi ^ s + mloadgAh + (mioadA (v2)) / 2 where g is the gravitational acceleration. In this * · "··· * method, the mass of the vehicle is first stored on a memory card and transmitted to the central system after the driving event.

Figure 2 shows the vehicle loads i edo collector. ! ·, The equipment used for the mass. Vehicle 1 includes • · XI GPS positioning system 2 to collect vehicle location information *; ** 35. The positioning apparatus is connected to a computer 3 where the location data can be collected. The road machine 3 is also connected to the vehicle data bus 4 14 119484 for collecting vehicle operation data from the data bus. By means of the computer 3, the vehicle transitions s and Ah, the changes in speed v and the work done to move the vehicle 5 can be determined from the position and operational data. The positioning equipment and the computer can be used to collect and process data during both the driving event and possible pre-driving tests. From the data of the driving tests, the computer 3 can also determine the dependence of the work required to move 10 vehicles on the displacement and mass of the vehicle and, if necessary, also on the speed. The computer can further calculate the mass of the vehicle load flUoad · The computer 3 is further provided with a GSM transmitter 15 5 for wirelessly transferring the mass of the data load to a central data collection system 6.

The invention is not limited only to the above exemplary embodiments, but many modifications are possible within the scope of the inventive idea defined by the claims.

• · · m m 1 ♦ 1 1 1 1 2 1 2 2 2 2 2 2 2 2 1 2 2 2 1 2 2 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 * 1 1 1 1 1 1 1 1 1 1 # # ♦ · • · · 1 ♦ 1 1 1 1 1 1 1 1 · · 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 1 1 1 1 · • · · • M • f

Claims (16)

A method for gathering information on the amount of load in a heavy traffic vehicle (1), characterized in that the relationship between the work Wz required to move the vehicle (1) and the displacement and mass of the vehicle is determined in advance; during the driving event, position information about the vehicle (1) and function information about the vehicle are collected from the data bus (4) of the vehicle (1) at time intervals; on the basis of the position information and the function information, the distance s is determined as the vehicle (1) travels, the height change position Ah of the vehicle, the change in vehicle speed v and the work W performed to move the vehicle during the measurement period during the driving event; the mass m <3 of the vehicle load (1) is calculated during the measurement period by means of the relationship between the work Wr required to move the vehicle and the vehicle's displacement and mass, the distance s as the vehicle • ·] ”· * traveling, the altitude change Ah, the velocity v change and the work W done to move the vehicle and the principle of energy conservation; and * ·· ϊ, ## ί the information on the vehicle (1) load: : *: is transmitted to a central system that collects mass information for storage or further processing. 2. A method according to claim 1, characterized in that driving tests are made to • ♦ · II clarify the relationship between the work Wr is needed to *** move the vehicle (1) and the displacement of the vehicle and • · i: · mass . t ·: ***; Method according to claim 1 or 2, characterized in that position information on the vehicle (1) is collected by means of a vehicle installed in the vehicle. GPS seat elite positioning equipment (2). Method according to any of claims 1-3, characterized in that during the driving event, at the time intervals from the vehicle bus (1) the data bus (4) functions on the vehicle engine and on the basis of them, the instantaneous engine power of the vehicle is determined Ρ ± '. , and on the basis of the engine power P ± and the length of the measurement period, the work W performed to move the vehicle (1) during the measurement period is determined. Method according to any of claims 1 to 4, characterized in that the mass of the load is calculated by determining, on the basis of the relationship between the work needed to move the vehicle (1) and the displacement of the vehicle and the mass, the coefficient K which defines the mass of the vehicle. impact on the forces that counteract the movement of the vehicle; By solving the equation for the conservation of energy W = Kms + mgAh + (mAfv2)) / 2, where g is the gravitational acceleration, in relation to the vehicle's mass, · and ·: ** by subtracting the mass obtained from the vehicle (1) by subtracting the known mass m0 of the empty mold in the device. A method according to any one of claims 1. - 4, characterized in that an additional • · · is determined in advance the relationship between the work Wro which means. #. # 30 is raised to move the empty vehicle (1) and the displacement and speed of the vehicle and the load of the load is calculated. · '* · Mass mioadi: V: by determining the relationship between the work required to move the vehicle (1) and the vehicle displacement and mass at the base of the vehicle mass. * ·: Is the effect on the coefficient K which defines the forces that influence the movement of the vehicle; 22 119484 by comparing the relationship between the work VJro needed to move the empty vehicle (1) and the displacement and speed of the vehicle with the distance s traveled by the vehicle, the height change of the vehicle position 5 Ah and the change of the vehicle speed v and on the basis of the comparison determine VJo corresponding to the part of the work VJ that the empty vehicle performed during the period of the measurement period, - by determining, during the period of the measurement period, the part VJioad of the work VJ corresponding to the load by subtracting it from the work performed part VJo corresponding to the empty vehicle (1); and by solving the equation for the energy-conserving IV10a (i = Kmloads + mioadffAh + (mioadA (v ^)) / 2, where g is the gravitational acceleration, relative to the mass fflload Method according to any of the preceding patent claims, characterized in that during the period of the measurement period, the torque of the vehicle (1) is at least 70% of the maximum torque value of the engine to ensure sufficient accuracy in the determination. · 'Of the work done to displace the vehicle and thus · · ϊ * ·· thus further determining the load. i.J.i 25 8. Method according to any preceding claim: ***: Tent requirement, characterized in that the distance ··· •; * · as the vehicle (1) has been moved during the period of measurement ♦ · · · · it is at least 50 meters for guaranteeing of a sufficient accuracy in determining the position information required for the load and the functional information, and thus further determining the load. : V 9. A method according to any preceding claim: ***: Tent requirements, characterized in that the mass of • · *. *. The load of the vehicle (1) is calculated during the run-up event several times on the base of different measurement periods. • From this result, a mean is calculated for the lengths of the measurement periods for the measurement periods. improving the accuracy of the calculation. Method according to any of the preceding patent claims, characterized in that the information about the mass of the load of the vehicle (1) is transmitted to the central system during the driving event by the transmission of a wireless data transfer means (5). Method according to any of claims 1 to 9, characterized in that information about the mass of the load of the vehicle (1) is stored in an intermediate saving means and transmitted to the central system after the driving event. 12. Equipment for gathering information on the load of a vehicle (1) for heavy traffic, characterized in that the equipment includes first determining means (2, 3) for determining the relationship between the work Wr needed to move the vehicle and the displacement and mass of the vehicle; collecting means (2, 3) for collecting vehicle position information (1) and collecting means (3) for • ♦ '···' collecting vehicle functional information from the vehicle's data bus (4) at time intervals during the run:. ·, ϊ 25 event; other determining means (3) for determining; during the measurement period during the driving event «··« the distance s traveled by the vehicle (1), the position of the vehicle * · «height change Ah, the change in the vehicle speed 30 v and the work W performed to move the vehicle • · t M at the base of the position information and function information • · ··· *; : We calculating means (3) for calculating the mass millionth of the vehicle load (1) by means of co. *. The band between the work Wr needed to move the vehicle and the vehicle displacement and mass, the distance traveled by the vehicle, the change in altitude of the position Ah, the change in speed of the speed and the work W made for moving the vehicle during the measurement period and the principle of energy conservation; and transmission means (5) for transmitting information about the mass of the vehicle (1) to a mass information gathering central system (6). 13. Equipment according to claim 12, characterized in that the collection means include a GPS satellite positioning equipment (2) installed in the vehicle for collecting the location information of the vehicle. Equipment according to claim 12 or 13, characterized in that the equipment further comprises third determining means (2, 3) for determining the relationship between the work Wr0 needed to move the empty vehicle (1) and the displacement and speed of the vehicle. . Equipment according to any one of claims 12 to 14, characterized in that the transmitting means include a wireless data transfer means (5) for transmitting information about the vehicle (1) ... load of massless wireless to the central system (6). 16. Equipment according to any of the claims. * 12 * -15, characterized in that the transfer means include an intermediate saving means for saving mass data and with the help of of the intermediate pairing agent transferred to the central system (6) after the run event. · »· · ··» • · · · ··· 30 • · · · · · · · ♦ ·· • · · · ··· · · · · · · · · · ♦ · • »♦ · · · · · · · · · · ··· · ··