DE102020111814A1 - Procedure for leak testing a test body and test device as well as high-voltage storage - Google Patents

Abstract

The invention relates to a method for leak testing a test body (10), in particular a high-voltage storage device, comprising the following steps: providing the test body (10), providing a test device (12) which comprises a sensor device (26) for detecting at least one physical parameter, Connecting the test body (10) to the test device (12) in such a way that pressure equalization and / or a mass and / or volume flow can take place between the test body (10) and the test device (12), filling the system from test body (10) and test device (12) with a test medium under a defined test pressure, measuring a pressure compensation and / or a mass and / or volume flow between the test body (10) and the test device (12), correcting the measured pressure compensation and / or the mass and / or volume flow using the at least one parameter detected by means of the sensor device (26), and determining one Leak tightness of the test body (10) based on the corrected pressure compensation and / or the mass and / or volume flow. The invention also relates to a test device (12) for testing the leakage of a test body (10) and a high-voltage storage device.

Description

The invention relates to a method for leak testing a test body, in particular a high-voltage storage device, comprising the following steps: providing the test body, connecting the test body to the test device in such a way that a pressure equalization and / or a mass and / or volume flow between the test body and the test device can be done; Filling the system of test body and test device with a test medium under a defined test pressure, and measurement of a pressure equalization and / or a mass and / or volume flow between the test body and the test device.

The invention also relates to a test device for leak testing a test body, which comprises a container for receiving a test medium, which can be connected to the test body via a line, and a measuring device for measuring a pressure equalization and / or the mass and / or volume flow in the line . The invention also relates to a high-voltage storage device.

When measuring the tightness of a test body using a mass flow method, not only the test body but also a reference volume is filled with a test medium such as air or a gas. The reference volume and the test body are usually connected to one another via a line. Since, in the event of a leak in the test body, pressure equalization takes place via a fluid flow between the two volumes, a leakage value of the test body can be determined by measuring the volume flow from the reference volume into the test body. If the test body has a leak, air or gas flows in from the reference volume and is recorded by a mass flow sensor.

In this method, however, it is assumed that the reference volume and the test body behave the same in terms of their properties, in particular the same in terms of time. In fact, the test body is exposed to external interfering influences which oppose the required equilibrium condition or delay the establishment of equilibrium. Such disturbance variables can be a change in temperature, which results in a measurable change in pressure, or vibrations, which can cause fluctuations in fluid flow in the line.

The adjustment or settling time can make up the largest part of the test time. During this time, the influence of undesired factors (heat factors of the surface, dynamic factors of gas movement and other physical factors) on the measurement of the leakage is neutralized. Currently it can take 3 to 4 minutes to achieve an acceptable result for the adjustment time. Depending on the environmental influences, complete calming down cannot be achieved even after 45 minutes.

EP 0 647 842 A1 describes a method for detecting a leak in which a bottle to be tested is filled with compressed air and, after a settling time, a flow sensor is used to check how much air is leaving the bottle. If the air leaving the bottle lies within a predetermined range, it is concluded that the bottle has no leak. If the amount of air is above a predetermined range, it is concluded that the bottle has a leak.

DE 10 2013 211 400 A1 describes a leak test device for high-voltage storage devices with an air pressure unit for generating and measuring a test pressure and a coupling unit connected to the air pressure unit via an air pressure line for the air pressure-tight connection of the air pressure unit with a ventilation opening of the high-voltage storage unit. It is provided that the coupling unit has a connection unit designed for a positionally stable arrangement of the coupling unit on the ventilation opening and a bell body that is adjustable in the positionally stable arrangement between a sealing position and a release position.

DE 10 2015 220 558 B3 describes a method by means of which changes in volume of the test body, which can influence the leakage measurement, can be compensated mechanically.

It is the object of at least some embodiments to specify a method for leak testing a test body, a testing device and a high-voltage storage device, by means of which the detection of a leak can be detected reliably, in particular with a reduced testing time.

This object is achieved by a method, a test device and a high-voltage storage device according to the independent patent claims. Advantageous embodiments are the subject of the dependent claims.

1. a) Bereitstellen des Prüfkörpers,
2. b) Bereitstellen einer Prüfvorrichtung, welche eine Sensorvorrichtung zur Erfassung zumindest eines physikalischen Parameters umfasst,
3. c) Verbinden des Prüfkörpers mit der Prüfvorrichtung derart, dass ein Druckausgleich und/oder ein Massen- und/oder Volumenstrom zwischen dem Prüfkörper und der Prüfvorrichtung erfolgen kann,
4. d) Befüllen des Systems aus Prüfkörper und Prüfvorrichtung mit einem Prüfmedium unter einem definierten Prüfdruck,
5. e) Messen eines Druckausgleichs und/oder eines Massen- und/oder Volumenstroms zwischen dem Prüfkörper und der Prüfvorrichtung,
6. f) Korrigieren des gemessenen Druckausgleichs und/oder des Massen- und/oder Volumenstroms unter Verwendung des mittels der Sensorvorrichtung erfassten zumindest einen Parameters, und
7. g) Bestimmen einer Dichtigkeit auf Basis des korrigierten Druckausgleichs und/oder des Massen- und/oder Volumenstroms.

A method for leak testing a test body, in particular a high-voltage storage device, comprises the following steps:

1. a) Provision of the test body,
2. b) providing a test device which comprises a sensor device for detecting at least one physical parameter,
3. c) connecting the test body to the test device in such a way that pressure equalization and / or a mass and / or volume flow can take place between the test body and the test device,
4. d) Filling the system consisting of the test body and the test device with a test medium under a defined test pressure,
5. e) measuring a pressure equalization and / or a mass and / or volume flow between the test body and the test device,
6. f) correcting the measured pressure compensation and / or the mass and / or volume flow using the at least one parameter detected by means of the sensor device, and
7. g) Determining a tightness on the basis of the corrected pressure compensation and / or the mass and / or volume flow.

A test device for leak testing a test body, in particular a high-voltage storage device, comprises a sensor device for detecting at least one physical parameter, a container for receiving a test medium that can be connected to the test body via a connecting element, a measuring device for measuring a pressure equalization and / or a mass and / or volume flow in the connecting element, and an evaluation device which is designed to correct the pressure equalization measured by means of the measuring device and / or the mass and / or volume flow using the at least one parameter measured by means of the sensor device, or to determine the tightness of the test body To determine the basis of the corrected pressure compensation and / or the mass and / or volume flow.

A high-voltage storage device for a vehicle that has been tested using the leak test method and / or the leak test device.

The advantage of the method described here, the test device described here and the high-voltage storage device described here is that external (interfering) influences or external disturbance variables, which can influence the evaluation of the tightness of the test body, are recorded, in particular measured, in the form of physical parameters with the aid of the sensor device can be and can be compensated or deducted from the determination of the tightness. It is therefore no longer necessary, for example, for the test body and / or the test device to have to be measured in a vibration-free or vibration-reduced state, but rather the measurement can take place with vibrations. This enables the measurement to take place in the production process of a vehicle, i.e. the test body (high-voltage storage device) does not have to be removed from the production process for the leak test. This simplifies and shortens the manufacturing process. In particular, the test of the tightness of the test body can take place in parallel to the manufacturing process, since external disturbances occurring during the manufacturing process can be compensated for or eliminated during the tightness test. The parallelization of the leak test and the production process also results in a reduction in storage requirements, since it is no longer necessary to store the test specimens for the leak test.

Furthermore, the detection of external disturbance variables enables the measurement accuracy to be increased, since these external disturbance variables can be calculated out of the measurement result or the measurement result can be corrected by the detected disturbance variables. Measurement artifacts and false negative results can thus be reduced. In addition, the test process can be standardized, since external disturbance variables, which can differ depending on the location of the leak test, can be recorded and thus the leak test can be standardized regardless of the location of the test. This allows a standardization of the leakage tests carried out at different locations.

The recorded physical parameter corresponds to an external disturbance variable or an external disturbance influence. An occurring effect, such as vibrations in the test medium between the test body and the test device, can advantageously be recognized as a result of an external disturbance variable and assigned to a cause such as solar radiation or a vibration from the conveyor belt. In addition, several effects occurring as a result of the external disturbance variables can be recognized and each assigned to a cause. A cause is advantageously assigned to each occurring effect by means of an evaluation device. The detection of an occurring effect and its assignment to a cause can take place before step f) or during step f). A learning system allows the recorded physical parameters or the measurement data (pressure and leakage) to be corrected or adjusted to remove the interference that has been initiated. The learning system can make the correction in step f).

An external disturbance variable or an external disturbance influence can cause an acceleration on the test body, on the test device, on the component carrier, on the vehicle and / or on the belt, solar radiation, drafts or wind chill.

The term “test body” is understood here and in the following to mean in particular a test body which is filled with a test medium under a test pressure within a certain pressure range, for example between 20 and 8000 mbar, alternatively between 20 and 100 mbar, to check the tightness.

The test body accordingly has a cavity which, apart from a test body connection that can be connected to the connecting element, should be fluid-tight, gas-tight or liquid-tight. This tightness is checked with the method described here and the test device described here.

The test body is in particular a high-voltage storage device that can be installed in a vehicle or is already installed in a (not yet completely finished) vehicle.

The test device has a container for receiving the test medium, which is preferably fluid-tight, gas-tight or liquid-tight, except for the connection with the connecting element. The container provides the reference volume.

The sensor device has one or more sensors which are used to detect at least one physical parameter. External influences which act on the test body and / or the test device are thus measured by means of the sensor devices. These external influences can have an impact on the measurement of the pressure equalization and / or the mass and / or volume flow.

The physical parameter should be understood here and in the following as a physical variable that can be detected by means of sensors. The sensor device is connected to the evaluation device by means of lines or wirelessly. In the case of a wireless connection between the sensor device and the evaluation device, the sensor device can comprise an energy store, such as a battery, or can be connected to a power supply by means of an electrical line.

Furthermore, the test body is connected to the test device in such a way that pressure equalization and / or a mass and / or volume flow can take place between the test body and the test device. For example, the test body can be connected to the test device by a preferably pressure-stable connection element, such as a line, in particular a hose line and / or a pipeline. The test system comprising the test body and the test device is then filled with a test medium under a defined test pressure, for example by opening a valve.

The step of filling the system comprising test body and test device can for example take place via a filling device separate from the test device, such as a tank, a gas or air cylinder, which is or is in particular connected to the connecting element. This has the advantage that the test body and the test device are filled at an approximately identical rate. However, it is also possible that either the container of the test device and / or the test body are filled directly with the test medium. The test medium is in particular a gas, preferably an inert gas, or air.

In addition to the line, the connecting element can also represent a direct connection between the test device and the test body, as shown, for example, in FIG DE 10 2013 211 400 A1 is described.

The measuring device can have one or more pressure sensors, by means of which a pressure equalization between the test body and the container of the test device can be measured. The pressure equalization can be determined via two pressure sensors arranged in the test body and the container of the test device. Furthermore, a mass and / or volume flow that flows between the test body and the container of the test device in the connecting element can also be measured, for example by means of a mass flow sensor. In this case, the sensor of the measuring device can be arranged in or on the connecting element. These variants described can also be combined with one another. The sensors of the measuring device are connected to the evaluation device wirelessly or by means of electrical lines.

The measurement of the pressure equalization and / or the mass and / or volume flow is preferably carried out continuously, so that a time course of these measured variables can be recorded.

The detection, in particular the sensory detection of the at least one parameter and its evaluation can begin when the system is filled.

In step e), instead of measuring a pressure equalization and / or a mass and / or volume flow between the test body and the test device, vibrations in the test medium can be measured between the test body and the test device. Those in the test medium The vibrations caused result from an external disturbance variable or from several external disturbance variables. If vibrations are measured in the test medium in step e), then the vibrations are corrected in step f) using the at least one parameter detected by the sensor device.

Steps f) and g) are preferably carried out with the evaluation device. The evaluation device can have a computer, a processor and / or other forms of data processing system. The evaluation device is at least connected to the measuring device and the sensor device in a wireless manner or for data purposes by means of electrical lines.

In step f), the external disturbance variables are corrected from the measurement data measured by the measurement device, that is to say in particular calculated or filtered out. This succeeds because the external disturbance variables are detected by means of the sensor device and a correction or a calculation is therefore possible. A learning system advantageously enables the recorded physical parameters or the measurement data (pressure and leakage) to be corrected or adjusted to remove the interference that has been initiated.

In step e), in particular, a time profile of the pressure equalization and / or of the mass and / or volume flow is recorded. In step f), this temporal course of the pressure equalization and / or of the mass and / or volume flow is corrected so that it is free of disturbance variables or in which the influence of the external disturbance variables is reduced. As a result, an improved result is achieved with a view to the pressure compensation and / or the mass and / or volume flow. On the basis of this corrected result, it is now determined whether the test body is leak-proof or not. For example, a mass and / or volume flow above a certain threshold value, that is, if fluid flows continuously from the test device into the test body, indicate that the test body has a leak.

This result can be displayed by means of a display device such as a display. The display device can be part of the test device and can be connected to the evaluation unit in terms of data. However, it is also possible for the test device to have a transmission unit which transmits the result of the determination in step g) to a central unit, such as a server.

It is preferred that step e) is carried out before a (dynamic) equilibrium is established in the pressure equalization and / or the mass and / or volume flow.

Dynamic equilibrium means that although there is a pressure equalization and / or a mass and / or volume flow, for example due to a leak, the rate or speed of the pressure equalization and / or the mass and / or volume flow does not change.

So far, a pressure equalization and / or a mass and / or volume flow between the test body and the test device has only been measured after a certain calming phase after the test system has been filled or after the valve has been closed.

Such a waiting is no longer necessary, since the external parameters, such as temperature and vibrations, which make the calming phase necessary, can be determined by means of the sensor device and can be calculated from the result of the measurement. This leads to a reduction in the time required for checking the tightness.

It is preferred that step e) is carried out on a moving test body.

For this purpose, the test body can be provided on a component carrier, such as a driverless transport system or an assembly line. In particular, in the case of a moving test body, it is possible to check the tightness of the test body in the production process itself, so that it is not necessary to remove the test body from the production process, for example a vehicle. In addition, the test device itself can also be arranged on the component carrier, so that the test device itself is also moved when the leak test is carried out.

It is preferred that step f) comprises filtering the measured pressure compensation and / or the mass and / or volume flow using the at least one parameter measured by means of the sensor device.

The type of filtering is determined by the at least one parameter measured by the sensor device. This means that the filtering is variable and therefore adapted to the external conditions prevailing at the test location.

It is preferred that step f) is carried out by a learning system, the learning system preferably being trained before steps a) to g) are carried out.

The learning system can, for example, be a neural network and / or others include self-learning systems. The learning system is trained in a test environment in particular on identical test bodies with the aid of physical parameters determined by the sensor device. In this way, reactions of the system from the test body and test device to the measured external physical parameters can be learned and these disturbance variables can be calculated or filtered out with the aid of the self-learning system.

In an optional subsequent step, the self-learning system can also be taught-in at the location where the measurement was actually carried out. This has the advantage that interfering influences occurring specifically at the location of the leak test can flow into the correction of the measurement result. This means that local variations in the external disturbance variables can also flow into the correction of the measurement result. It is also possible that teaching-in takes place exclusively at the location of the later leak test.

It is preferred that step f) takes place alternatively or additionally by means of a calculation in which the parameter measured by the sensor device is included.

Such a calculation can include a standardized filter, such as, for example, a high pass, a low pass or a band pass. The limits of the filters (limit frequencies) are adapted to the location of the measurement and the respective prevailing conditions by the external disturbance variable, that is to say the physical parameters measured by means of the sensor device.

In addition, the correction can also follow by calculating external disturbance variables that hardly change over time. For example, a temperature difference between the test body and the test device can be detected, which causes a mass and / or volume flow between these two components. By detecting this temperature difference, such a falsification of the measurement result can be calculated out.

It is preferred that the sensor device comprises at least one mobile sensor which is preferably attached to the test body, the test device and / or a component carrier carrying the test body, in particular a driverless transport system and / or an assembly line.

It is preferred that the mobile sensor comprises an acceleration sensor and a temperature sensor.

To determine the physical parameter, the mobile sensor can be attached to the test body and / or to the test device and / or a component carrier carrying the test body. This means that it is possible to remove the mobile sensor and attach it to a new system to be checked. Physical disturbance variables acting individually on the test body and / or the test device can thus be recorded. The mobile sensor has a fastening device for detachable fastening to the test body, the test device and / or a component carrier carrying the test body.

The sensor device can also have a permanently installed sensor which is permanently attached to the test device and can detect external disturbance variables acting on the test device.

Depending on how the test body and the test device are connected to one another, a sensor of the sensor device can be provided either on the test body or on the test device. This applies, for example, when these two components are firmly connected to one another, so that, for example, a vibration which acts on the test body is also present in the test device. If the test body and the test device are connected to one another by a flexible line such as a hose, the vibration may not be transmitted, so that the vibration should be measured both on the test body and on the test device. The same applies to the determination of the vibrations on the component carrier, which allow conclusions to be drawn as to which vibrations act on the test body.

It is preferred that the sensor device comprises at least one stationary sensor, which is preferably permanently installed in the vicinity of the location of the measurement according to step e).

It is preferred that the stationary sensor comprises a temperature sensor, a sensor for determining a wind chill effect, an acoustic sensor and / or a sensor for determining the solar radiation.

The stationary sensor is therefore not remounted for each leak test, but is, for example, firmly connected to a building. The stationary sensor is used in particular to measure environmental influences which act on the system of test body and test device. For this purpose, for example, temperature, a wind chill effect, noises which cause vibrations on the test body, or solar radiation can be detected, which causes a change in the Temperature of the test body and / or the test device.

In addition, the stationary sensor can also detect parameters that indirectly allow the calculation of interference, for example whether a hall door is closed or open and / or whether or not the irradiation of the sun is enabled. Both parameters allow the determination of temperature and / or noise and thus vibrations indirectly.

• 1 eine schematische Darstellung einer Prüfvorrichtung zur Dichtigkeitsprüfung und einen Prüfkörpers und
• 2 ein Blockdiagramm zur Illustration eines Verfahrens zur Dichtigkeitsprüfung eines Prüfkörpers.

Further advantages and advantageous embodiments of the method and the test device described here emerge from the following in connection with the in 1 and 2 described embodiments. Show it:

• 1 a schematic representation of a test device for leak testing and a test body and
• 2 a block diagram to illustrate a method for leak testing a test body.

1 shows a schematic representation of a structure, such as the tightness of a test body 10 can be checked. A test specimen will be used 10 , for example a high-voltage battery that is to be tested for leaks, and a test device 12th , which is designed as a reference component with a reference volume, provided. By means of a filling device 14th are opened by opening a valve 16 the test body 10 and the testing device 12th filled with a test medium. After filling the valve 16 closed and the volume flow from the reference component (test device 12th ) to the test body 10 is by means of a measuring device 18th measured. This allows the leak rate to be determined. Such a structure is, for example, from DE 10 2013 211 400 A1 known, which describes how the testing device 12th can be constructed in detail.

The test body 10 has a housing which, apart from the connection, has a connecting element 20th is fluid-tight. The test body 10 can be installed in a vehicle, which is on an assembly line 22nd is arranged. In 1 this is shown schematically in that the test body 10 and the testing device 12th on the assembly line 22nd are arranged. Due to the movement of the test body 10 on the assembly line 22nd vibrations can occur, which affect the test specimen 10 act.

The testing device 12th includes a container 24 to provide the reference volume, a sensor device 26th , the connecting element 20th and / or the measuring device 18th .

The container 24 is just like the housing of the test body 10 fluid-tight except for the connection with the connecting element 20th . The measuring device 18th is in or on the connecting element 20th provided and is used to detect a mass and / or volume flow through the connecting element 20th through.

Alternatively or additionally, the measuring device 18th have a pressure sensor in the test body 10 and / or in the container 24 is arranged.

The connecting element 20th can be designed as a line, such as a flexible hose or a rigid tube. It is also possible that the container 24 directly with the test body 10 connected is. In this case, the connecting element 20th as a connector for connection to the test body 10 be trained.

The sensor device 26th comprises at least one sensor for detecting a physical parameter which is applied to the test body 10 who have favourited the testing device 12th and / or the assembly line 22nd acts. In the embodiment shown, the sensor device comprises 26th a mobile sensor 30th and one, especially two, stationary sensor (s) 32 . The mobile sensor 30th can be used while checking the tightness of the test specimen 10 on the test body 10 and / or on the assembly line 22nd be attached.

The mobile sensor 30th is used to record physical parameters directly on the test body 10 and / or on the test device 12th . The mobile sensor 30th can for example comprise an acceleration sensor, by means of which vibrations can be detected, which the test body 10 shows or on the test body 10 act.

The stationary sensor 32 is close to the site of checking the tightness of the test body 10 attached and is used to record external disturbances that affect the test body 10 and / or on the test device 12th act. The stationary sensor 32 can for example comprise a temperature sensor, a sensor for determining the wind chill effect, an acoustic sensor or a sensor for determining the solar radiation.

In the embodiment shown, the stationary sensor communicates 32 wirelessly with the evaluation device 28 . The mobile sensor 30th can be data-technically connected to the evaluation device via a line 28 be connected.

The measuring device 18th has, in the embodiment shown, a mass flow sensor, which is located in the connecting element 20th arranged is. The evaluation device 28 is also in terms of data with the measuring device 18th connected, i.e. by means of a line or wirelessly.

The evaluation device 28 corrects the one from the measuring device 18th detected pressure equalization and / or mass and / or volume flow based on the sensor device 26th recorded physical parameters. This can be done, for example, by filtering and / or by a calculation in which the data from the sensor device 26th recorded physical parameters are included. The evaluation device 28 can for example have a learning system, such as a neural network, in order to correct the data from the measuring device 18th to carry out recorded values. Using the corrected, from the measuring device 18th recorded measured values can be determined whether the test body 10 is tight or not.

Optionally, the test device 12th have a display device which displays the result of the leak test. Furthermore, the test device 12th alternatively or additionally have a transmission unit which transmits the result of the leak test to a central unit.

The following is a method for testing the leakage of the test specimen 10 using the block diagram of 2 described.

If the evaluation device 28 has a self-learning system, the self-learning system is learned in an optional step S1. For this purpose, the method described below is carried out in a test environment to determine the behavior of the type of test body 10 and the testing device 12th to train on the measured physical parameter. In a subsequent, second optional learning step, the system can be learned again at the location of the leak test that is actually taking place, so that the external disturbance variables occurring specifically at the location of the leak test can be learned.

In step S2, the test specimen 10 as well as the test device 12th for example on the assembly line 22nd provided.

In step S3, the test device 12th with the test body 10 connected by, for example, the connecting element 20th on the test body 10 is connected. About the fastener 20th is such a pressure equalization and / or a mass and / or volume flow between the test body 10 and the testing device 12th , especially the container 24 , possible.

In step S4, both the test specimen 10 as well as the testing device 12th filled with the test medium under a defined test pressure. This is done, for example, by removing the test medium from the filling device 14th via the open valve 16 in the connecting element 20th can flow in and thus both the test specimen 10 as well as the testing device 12th is filled.

In step S5, the pressure equalization and / or the mass and / or volume flow that is in the connecting element 20th takes place with the help of the measuring device 18th measured. This takes place in particular before there is a (dynamic) equilibrium between the test body 10 and the testing device 12th adjusts. This is made possible in that, in the subsequent step S6, external disturbance variables, which can cause the imbalance, are measured.

The evaluation device performs in step S6 28 a correction of the measurement device 18th measured values. This can be done, for example, by filtering or calculating the disturbance variables. In particular, as described above, a self-learning system can be used for this purpose.

In a subsequent step S7 it is determined whether the test body 10 is tight or not. This can be determined, for example, by the fact that the measured mass flow and / or volume flow is above a certain threshold value. The determination is made on the basis of the corrected values obtained by the measuring device 18th be measured. The result of the leak test can then be displayed or transmitted to a central unit.

List of reference symbols

10

Test specimen

12th

Testing device

14th

Filling device

16

Valve

18th

Measuring device

20th

Connecting element

22nd

Assembly line

24

container

26th

Sensor device

28

Evaluation device

30th

mobile sensor

32

stationary sensor

QUOTES INCLUDED IN THE DESCRIPTION

This list of the documents listed by the applicant was 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.

Patent literature cited

• EP 0647842 A1 [0006]
• DE 102013211400 A1 [0007, 0026, 0059]
• DE 102015220558 B3 [0008]

Claims (10)

Method for leak testing a test body (10), in particular a high-voltage storage device, comprising the following steps: a) providing the test body (10), b) providing a test device (12) which comprises a sensor device (26) for detecting at least one physical parameter, c) connecting the test body (10) to the test device (12) in such a way that pressure equalization and / or a mass and / or volume flow can take place between the test body (10) and the test device (12), d) Filling the system consisting of the test body (10) and the test device (12) with a test medium under a defined test pressure, e) measuring a pressure equalization and / or a mass and / or volume flow between the test body (10) and the test device (12), f) correcting the measured pressure compensation and / or the mass and / or volume flow using the at least one parameter detected by means of the sensor device (26), and g) determining a tightness of the test body (10) on the basis of the corrected pressure compensation and / or the mass and / or volume flow. Procedure according to Claim 1 , characterized in that step e) is carried out before an equilibrium is established in the pressure equalization and / or the mass and / or volume flow. Procedure according to Claim 1 or 2 , characterized in that step e) is carried out on a moving test body (10). Method according to one of the preceding claims, characterized in that step f) comprises filtering the measured pressure compensation and / or the mass and / or volume flow using the at least one parameter measured by means of the sensor device (26). Method according to one of the preceding claims, characterized in that step f) is carried out by a learning system, the learning system preferably being trained before steps a) to g) are carried out. Method according to one of the preceding claims, characterized in that step f) is carried out by a calculation in which the parameter measured by the sensor device (26) is included. Method according to one of the preceding claims, characterized in that the sensor device (26) comprises at least one mobile sensor (30), which is preferably on the test body (10), the test device (12) and / or a component carrier carrying the test body (10) , in particular a driverless transport system and / or an assembly line (22), wherein the mobile sensor (30) further preferably comprises an acceleration sensor and / or a temperature sensor. Method according to one of the preceding claims, characterized in that the sensor device (26) comprises at least one stationary sensor (32), which is preferably permanently installed in the vicinity of the location of the measurement, the stationary sensor (32) further preferably being a temperature sensor, comprises a sensor for determining a wind chill effect, an acoustic sensor and / or a sensor for determining the solar radiation. Test device (12) for leak testing a test body (10), in particular a high-voltage storage device, comprising: a sensor device (26) for detecting at least one physical parameter, a container (24) for receiving a test medium, which can be connected to the test body (10) via a connecting element (20), a measuring device (18) for measuring a pressure equalization and / or the mass and / or volume flow through the connecting element (20), and an evaluation device (28) which is designed to correct the pressure equalization measured by means of the measuring device (18) and / or the mass and / or volume flow using the at least one parameter detected by means of the sensor device (26) and to check the tightness of the test body ( 10) on the basis of the corrected pressure compensation and / or the mass and / or volume flow. High-voltage storage for a vehicle tested using a method according to one of the Claims 1 until 8th and / or a test device (12) Claim 9 .

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