EP4244175B1 - Refuelling system for motor vehicles - Google Patents

Description

The invention relates to a tank system for motor vehicles.

The fuels available on the fuel market today meet the necessary requirements according to standards. However, these standards were designed to cover a broad spectrum, whereby the optimization potential of the respective fuel cannot be fully exploited in relation to the standards.

Previous concepts for usage optimization deal with fuel analysis in motor vehicles. Simple systems, e.g. for deriving material properties from the dielectric constant, are already in use. More complex products are currently still in development. Attempts are being made to make production cheaper and to generate a higher information content through nanotechnological advances. In addition, attempts are being made to optimize these systems so that as many statements as possible can be generated from as few individual systems as possible. Mathematical evaluation methods and algorithms based on artificial intelligence, e.g. deep learning algorithms, can provide significant support here.

However, these systems are currently very cost-intensive, especially since fuel sensors then have to be provided in every motor vehicle. What makes this even more difficult is that such individual sensor systems on the motor vehicle are limited in their analysis resolution. For example, it is hardly possible to differentiate between paraffinic fuels and fuels from renewable sources and a premium fuel. Furthermore, environmental influences are avoided by moving the sensitive measuring devices in the process chain.

All known solution ideas result in a high cost factor for the vehicle. There is also a need for installation space for the sensor systems and their operational requirements. The latter requirements include robustness against heat and cold as well as against vibrations.

In other known embodiments of the prior art, information transfers between the gas station and the motor vehicle are mediated via database-supported information collections.

The WO 2009/092473 A1 shows, for example, a method for refueling motor vehicles, in which information about the required fuel is sent to the refueling system before refueling. In this case, physical properties of the fuel based on pre-stored fuel data are sent to a vehicle-side receiving device via a transmitting device of the tank system in order to carry out engine settings of the motor vehicle.

In the US 9,995,230 B2 A refueling method is used in which an aftermarket device is used which transmits fuel parameters to an on-board computer system during the refueling process using an electronic fuel characterization table.

In the EP 3 521 091 A1 A system for reducing the risk of incorrect refueling is described, in which a fuel type is received via radio frequency receivers and the refueling process is controlled based on the fuel type. In the WO 2020/109673 A1 A tank system is described with an analysis device which determines the fuel type and leaves the fuel passage open or closes by means of a comparison.

The disadvantage, however, is that the individual fuel properties in the tank of the tank system are not constant and can vary and an electronic database requires permanent updating in order to take the variations on shorter time scales into account.

The invention is based on the object of providing a tank system which at least reduces the above-mentioned problems, in particular is cost-reduced overall and enables current and precise adjustments of control components to the fuel actually used.

In a preferred embodiment of the invention, a tank system for motor vehicles is provided. The tank system includes a motor vehicle with a first communication interface and a control unit. Furthermore, the tank system includes a tank system with a second communication interface, which is communicatively connected to the first communication interface for the transmission of data, and a tank with fuel. Furthermore, the tank system includes a sensor device which is set up to determine a fuel material property of the fuel in the tank system and by means of which To transmit communication interfaces to the motor vehicle. The control unit of the motor vehicle is also set up to control a vehicle component based on the fuel material property determined by the sensor device.

In other words, the sensor device is part of the tank system or is integrated or installed in it. In other words, the sensor device is a sensor unit or a sensor system. A fuel material property, in other words fuel parameter, can be a physical or chemical property. Preferred examples are a density, a viscosity, a dielectric constant or an oxygen content, although the invention is not limited thereto and may include other specific fuel parameters. A vehicle component may be an engine, so that the fuel-adapted control relates to engine management. A vehicle component can also affect other controls such as exhaust aftertreatment, auxiliary heating, activated carbon filter regeneration or subordinate control devices. A fuel material property may include a measure of the quality, sustainability, type and composition of the fuel.

The invention has the advantage that the vehicle does not have to provide integrated sensors. The transmitted fuel material properties are always current and are not subject to temporal fluctuations or changes. This also means that the transmitted fuel material property is accurate or precise because it is obtained through actual measurement of the fuel compared to the use of pre-stored parameter sets in databases, which by definition cannot be current and require constant updating. This means that these fuel material properties do not have to be checked independently by the gas station operator and stored or uploaded to databases. The tank system thus allows the motor vehicle or components thereof to be precisely optimized for the fuel to be filled. In addition, the durability of the motor vehicle or its vehicle components can be significantly increased by precisely adapting it to the fuel. This results from the precise optimization of the fuel.

The sensor device is preferably a spectroscopic measuring instrument. For example, fluorescence spectroscopy, light absorption spectroscopy using UV (ultraviolet), VIS (visible), NIR (near-infrared) or IR (infrared) can be considered, or dielectric spectroscopy, including miniaturized NMR spectroscopy (nuclear magnetic resonance) or X-ray fluorescence analysis ) is possible in this application, although the invention is not limited to this. Through the spectroscopic process the Fuel material properties determined non-destructively and precisely. There is also space available in the tank system to design the devices in such a way that precise measurements can be carried out. In addition, a large number of fuel parameters can be determined.

In a preferred embodiment, the tank system comprises a nozzle, in other words a nozzle, and a line between the tank and the nozzle or nozzle, the sensor device being positioned and set up to determine the fuel material property of the fuel in the line or at the nozzle. This allows the fuel material properties to be determined during the refueling process since it has already been pumped up the line. In other words, the line is a run. In other words, the nozzle is a nozzle or nozzle.

The sensor device is preferably positioned and set up to determine the fuel material property of the fuel in the tank of the tank system. The advantage here is that fuel properties of a static fluid can be measured. This means that a fuel parameter can be precisely determined before or after the actual refueling process. In further embodiments, a combination of the positions on the tank and/or the tap and/or the line can also take place.

In a preferred embodiment, the sensor device is set up to determine the age of the fuel, to determine a regenerative measure of the fuel based on the age determination and to transmit this to the motor vehicle using the communication interfaces. The sensor device can also include a separate or integrated measuring module, for example in addition to a spectroscopy measuring instrument, in order to carry out this determination. The sensor device can therefore comprise a sensor group. The sensor device can preferably carry out a C ¹⁴ age determination. The renewable measure, in other words a sustainability measure, can be used to determine the degree of sustainability of the fuel. This information can be used, for example, to select the fuel. Fossil fuels are very old, while renewable fuels are very old. A regenerative measure would reflect this aging relationship. The regenerative measure can also be the specific age itself. Such information on sustainability or regenerative character may be necessary for certain or all motor vehicles.

Preferably, the control unit is set up to control a fuel intake quantity to the motor vehicle based on the fuel material property determined by the sensor device. This enables the motor vehicle to select a suitable fuel. A selection signal can, for example, be sent via the communication interface in response to the transmission of the fuel to the tank system. For example, only a certain quality value, in particular according to a regenerative measure, can be used for a motor vehicle. Another criterion can be engine compatibility. Controlling the amount of intake can also include blocking it entirely. The blockage can also occur at the vehicle entrance without communication to the fuel system.

In a preferred embodiment, the control unit is set up to further control the fuel intake quantity to the motor vehicle based on a filling quantity in a motor vehicle tank and the fuel material property of a fuel located therein in the motor vehicle. A fuel material property of the composite fuel can be determined from these variables. This knowledge can in turn be used to determine an appropriate intake quantity. For example, a maximum feed quantity of an inferior fuel can be determined for which the properties of the composite fuel are still judged to be suitable.

The control unit is preferably set up to determine a degree of segregation of the fuel of the motor vehicle tank and the fuel of the tank of the tank system based on the fuel material property determined by the sensor device and the fuel material property of the fuel of the motor vehicle tank and the filling quantity in the motor vehicle tank, and based on the To control the fuel inlet quantity according to the degree of segregability and/or to control a mixing device for mixing. If there are material differences between two fuels, especially in the case of renewable fuels, which differ from one another in particular in the relevant fuel material properties, undesirable segregation can occur in the motor vehicle tank. Then, for example, no homogeneous mixture is formed in the vehicle tank, but rather a first and separate second phase. To prevent this, appropriate fuels can be blocked or their addition can be dosed or limited. A mixing device can also be activated, for example a fuel pump, to create homogeneity.

In a preferred embodiment, the control unit is set up to determine a maximum supply quantity and to control the fuel supply in such a way that the supplied Fuel inlet quantity corresponds to the maximum supply quantity. This is particularly suitable if there is little compatibility, there is a risk of segregation or the composite fuel material properties do not meet the quality requirements.

The control unit is preferably set up to adapt a service interval for a vehicle component of the motor vehicle based on the transmitted fuel property. For example, an oil change interval or a fuel filter change interval can be adjusted to the quality of the fuel because the engine oil receives fuel inputs and the fuel filters are affected by the particular fuel material properties. This allows the durability of the motor vehicle to be extended.

Further preferred embodiments of the invention result from the remaining features mentioned in the subclaims.

The various embodiments of the invention mentioned in this application can be advantageously combined with one another, unless stated otherwise in individual cases.

Figur 1

ein Tanksystem nach einer ersten Ausführungsform der Erfindung,

Figur 2

ein Tanksystem nach einer zweiten Ausführungsform der Erfindung, und

Figur 3

ein Tanksystem nach einer dritten Ausführungsform der Erfindung.

The invention is explained below in exemplary embodiments using the associated drawings. Show it:

Figure 1

a tank system according to a first embodiment of the invention,

Figure 2

a tank system according to a second embodiment of the invention, and

Figure 3

a tank system according to a third embodiment of the invention.

Figure 1 shows a tank system 1 according to a first embodiment of the invention. The Figures 2 and 3 show further embodiments of the tank system, which will be discussed in more detail at an appropriate point, whereby the common features of these embodiments are also described below.

The tank system 1 includes a motor vehicle 10, with all motor vehicles being included in the invention and not just passenger vehicles as shown in the figures. The motor vehicle 10 includes a first communication interface K1. The first communication interface K1 can be positioned at various, suitable positions on the motor vehicle 10. Furthermore, the motor vehicle 10 includes a control unit 12.

The control unit 12 can be an on-board control system, for example a central control. An on-board control system can, for example, consist of networked control units and/or control devices. The control unit 12 can also be a single control unit that carries out a specific control task of the motor vehicle.

The tank system 1 further comprises a tank system 20 for refueling a motor vehicle 10. The tank system 20 can typically include a fuel pump 21 with a fuel hose 28 connected thereto and a tap 24.

The tank system 20 also includes a second communication interface K2. The second communication interface K2 is communicatively connected to the first communication interface K1 for the transmission of data. Communication, i.e. sending data, can take place in both directions. The transmission can take place via data line or wirelessly, i.e. wireless. Bluetooth can preferably be used. Bluetooth can be used without retrofitting thanks to the communication technologies that are often already installed in the radio. Bluetooth has the advantage that the radio signals can be directed or selective, so that only a specific motor vehicle 10 communicates with the tank system 20. The manufacturer therefore has no additional construction costs when using hardware components already installed in the motor vehicle.

Alternatively, data can also be sent via NFC (near field communication) or WLAN. Alternatively, a data line can also be used, which ensures the greatest possible transmission security.

The tank system 20 also includes a tank 22, or several tanks 22, for a fuel. A tank 22 can preferably be positioned below the ground, i.e. designed as an underground tank, although the invention is not limited to this. As shown by way of example in the figure, several tanks 22 can belong to a tank system 20, each of which stores a specific fuel in the tank 22. In other words, these can differ in at least one fuel material property, and the fuel material property can also be variable over time.

The tank system 20 further includes a sensor device 30, ie the sensor device 30 is installed or integrated in the tank system 20. The sensor device 30 is positioned and set up to determine a fuel material property of the fuel of the tank system 20, for example all fuels of the tank system 20. A Fuel material property can be, for example, a density, an oxygen content, a regenerative measure such as age, a fuel type, a fuel quality, etc. Basically, the fuel material property is a physical one or chemical property of the fuel. Volatility or cold fluidity can also be included.

The specific fuel material property is transmitted to the motor vehicle 10 via the communication interfaces K1, K2. In addition, operating instructions for the engine, exhaust gas aftertreatment, an auxiliary heater or other functionalities can also be transmitted, e.g. B. EGR (exhaust gas recirculation) variation with simultaneous shifting of the injection point, adjustment of the regeneration of the exhaust gas aftertreatment and oil change intervals.

The control unit 12 of the motor vehicle 10 can receive this fuel material property via the first communication interface K1. In response, the control unit 12 may control a vehicle component based on the fuel material property determined by the sensor device 30. A vehicle component can be, for example, the engine. In other cases, these may be other control functions in the motor vehicle 10. Controlling here refers in particular to adapting or adjusting the vehicle component to the fuel material properties of the measured fuel.

The transmitted fuel material property is always current through the built-in sensor device 30, so that the transmitted fuel material property is accurate or precise because it was obtained through actual, direct measurement of the fuel. The motor vehicle 10, on the other hand, does not require any expensive sensor devices. This means that there is no need to update databases regularly. The tank system 1 thus allows the motor vehicle 10 or components thereof to be optimized in a precise manner for the fuel to be filled. The precisely tailored properties of each fuel can thus be incorporated into the operation of the motor vehicle 10 in an optimized manner.

If there is a remaining amount in the motor vehicle tank 14, a composite fuel material property can also be determined. This can be done by reading the fuel material property of the previously filled fuel from a memory 15 in which the previously determined fuel material property was stored. Furthermore, a fill level sensor 16 can be provided, which determines the fill level of the motor vehicle tank 14. After obtaining these quantities, the control unit 12 can determine a composite fuel material property based on the fuel material properties and the fill level. This can in turn be stored in memory 15 for the next refueling process. This means that the vehicle component can be adjusted or controlled on the basis of such a composite Fuel material properties and thus taking into account the remaining amount of fuel in the motor vehicle tank 14.

The sensor device 30 may further comprise a spectroscopic measuring instrument. With such sensor devices, for which there is typically not enough space in the motor vehicle 10, fuel material properties can be precisely determined. Fluorescence spectroscopy, light absorption spectroscopy or dielectric spectroscopy are preferred, although the invention is not limited thereto. In particular, fuel parameters can be determined non-destructively in this way. For example, a combination of permittivity measurements and near-infrared measurements can be carried out. In further options, molecular clarification, e.g. regenerative content, aromatic content, paraffin content, polarity index, and molecular size distribution, e.g. aging state, can be detected.

The tank system 20 preferably includes a nozzle 24, also called a nozzle or nozzle, and a line 23 between the tank 22 and the nozzle 24. The sensor device 30 can now be positioned differently with respective advantages, with the focus here being on the Figures 1-3 is referred to, which essentially only differ in the positioning of the sensor device 30. In other embodiments, several sensor devices 30 can also be used, which are located, for example, at several or all of the different positions of the Figures 1-3 condition. Thus, the statements of the Figures 1-3 can be combined with each other in their entirety.

In the Figure 1 The sensor device 30 is positioned and set up to determine the fuel material property of the fuel in a line 23, also called a barrel, between a tap 24 and the tank 22. The sensor device 30 can also be integrated within the fuel pump 21.

In the Figure 2 The sensor device 30 is positioned and configured to determine a fuel material property at the tap 24, including a determination shortly after the tap 24.

These locations in the Figures 1 and 2 are particularly suitable for determining the fuel material properties of the fuel to be refueled during the refueling process, see the figure. Then, during the flow through line 23 and tap 24, for example by a pump mechanism, the fuel material properties can be determined and transmitted to the motor vehicle 10 via the communication interfaces K1, K2.

In a further embodiment, as in Figure 3 shown, the sensor device 30 is positioned and set up to determine the fuel material property of the fuel in the tank 22 of the tank system 20. This advantageously results in a static measurement of the fuel to determine the fuel material properties. Furthermore, in particular a measurement can be determined before or after the refueling process, see the figure. The measurement can also be carried out on a bypass, if available. The different positions of the control devices 30 can be advantageously combined with one another in other embodiments.

Due to the available installation space in the tank system 20, the sensor device 30 can also, additionally or alternatively, be set up to determine the age of the fuel. By determining the age, a regenerative measure of the fuel can then be determined. For this purpose, a separate or an integrated measuring module can be provided in the sensor device 30. For this purpose, the sensor device 30 can also include a sensor group, ie, for example, a spectroscopic measuring instrument and an age measuring module. The sensor device 30 can preferably carry out a C ¹⁴ age determination. Such an aging condition can be essential for the functional reliability of the engine, particularly in hybrid technology.

The regenerative measure can be transmitted to the motor vehicle 10 using the communication interfaces K1, K2. The motor vehicle 10 thus receives information about the sustainability of the fuel. The invention then also makes it possible, for example, for the regenerative measure to be transmitted to the motor vehicle 10 in combination with other fuel material properties.

For example, a minimum level of sustainability may also be required for a motor vehicle 10. This information can then be used to select the fuel, for example by blocking or activating certain fuels. The regenerative measure can also be the specific age itself.

The control unit 12 may further control a fuel intake amount to the motor vehicle 10 based on the fuel material property determined by the sensor device 30. Controlling here includes blocking or activating an inlet, ie enabling or blocking the power and/or minimizing the power or quantity of the amount of fuel admitted. For example, the sustainability information, ie the specific regenerative level or the specific age, can be used to check whether quality requirements for the fuel are sufficient and, if necessary, the inflow be blocked or reduced. The fuel quantity or the inlet can be controlled on the one hand at a fuel inlet 18 of the motor vehicle 10 or by transmitting a control signal to the tank system 20 via the communication interfaces K1, K2, for example at a tap 24 or another valve in the tank system 20.

Also, the control unit 12 can control the fuel intake amount to the motor vehicle 10 based on the filling amount in the motor vehicle tank 14 and the fuel material property of the fuel therein in the motor vehicle tank 14. This makes it possible to check the compatibility of the fuels and, if necessary, reduce or refuse supply.

In particular, it is advantageously provided that the control unit 12 determines a degree of segregation of the fuel of the motor vehicle tank 14 and the fuel of the tank 22 of the tank system 20 based on the fuel material property determined by the sensor device 30 and the fuel material property of the fuel of the motor vehicle tank 14 and the filling quantity in the Motor vehicle tank 14 determined. Then, based on the degree of segregation, the fuel intake amount can be controlled. It can therefore be advantageously taken into account that with different fuels, especially with renewable fuels, undesirable segregation can occur in the motor vehicle tank 14. Determining a maximum supply amount can prevent phase separation in the vehicle tank 14 from occurring.

Furthermore, a mixing device 19, for example a pump, can also be operated for mixing based on the degree of segregation. This allows multi-phase fuel components, often in biofuels, to be homogenized. As already explained above, this can be done on the basis of the determination of segregability.

A maximum supply quantity can also take place based on the fuel material property determined by the sensor device 30 and the fuel material property of the fuel of the motor vehicle tank 14 and the filling quantity in the motor vehicle tank 14. Then, the fuel supply can be controlled such that the supplied fuel inlet quantity corresponds to the maximum supply quantity. For example, segregation can only occur at a certain feed rate and below that the mixture remains homogeneous. Then this maximum feed quantity can prevent segregation. In other examples, this can be used to add low-grade fuel up to a maximum length while maintaining quality requirements.

The control unit 12 can also adapt a service interval for a vehicle component of the motor vehicle based on the transmitted fuel property. For example, an oil change interval may be adjusted based on the fuel material property transmitted by the sensor device 30. For example, an oil change interval can be increased for higher quality fuel and reduced for lower quality fuel. Furthermore, the replacement interval of a particle filter in an exhaust gas aftertreatment system can be shortened or extended. In these cases, the operation of the motor vehicle 10 can be optimized.

In further embodiments of the invention, a fuel material property can be recognized based on the detection of chemical tracers in the fuel. In other words, a chemical tracer is a fuel marker. For example, artificial DNA, additive packages and/or fuel identification markers can be implemented as chemical tracers. Using the recognized fuels, specifically defined work instructions can then be transmitted from the manufacturer to the vehicle. For this purpose, the sensor device 30 can comprise a spectroscopic measuring instrument, for example a fluorescence spectroscopic measuring instrument, which uniquely identifies the tracer using characteristic fluorescence. The transmitted fuel material property can either be the information about the tracer itself or the associated fuel material property. For example, the tracer can be used to identify high-quality fuels or to record other parameters using corresponding databases. This solution for determining tracers can be combined with the exemplary embodiments described above.

In a further embodiment of the invention, for example before the measurement by the sensor device 30, the motor vehicle 10 can also transmit data, for example vehicle information, to the tank system 20 using the communication interfaces K1, K2 with the tank system 20. In this embodiment, the tank system 20 has a control unit.

For example, an engine characteristic or other information can be transmitted to the tank system. The tank system 20 or the control unit 12 can then select, for example unlock or block, a tank 22 or a tap in response to the transmitted vehicle information. For example, the control unit can activate tanks 22 or taps 24 with fuels that match the vehicle information and/or block unsuitable fuels. For example, a motor vehicle 10 with a gasoline engine may only find blocked diesel taps. Furthermore, all incompatible fuel mixtures can also be blocked based on a transmission of the fill level and the Fuel property of the fuel in the tank. Incorrect refueling or filling with fuel that is harmful to the engine can thus be avoided. Further information such as a condition of the vehicle, for example particle filter full, high-pressure feed pump critically closed, can be transmitted so that the tank system 20 or its control unit can initiate fuel measures such as selection of the optimal fuel, post-additization or blending of the fuel. Optionally, the driver can be informed about this measure at the gas pump 21, elsewhere, or using an app. A further aspect of the invention can be that motor vehicles with existing emissions requirements, for example for operation in inner cities, are specifically supplied with fuel.

In a preferred embodiment, a blocking of all fossil fuels could be considered for a motor vehicle that is only registered for renewable fuels.

In further embodiments of the invention, the information exchanged between motor vehicle 10 and tank system 20 can be forwarded to suitable servers. Possible applications include ensuring measures to reduce greenhouse gases and/or pollutants. These can be transmitted in plain text, anonymized, pseudo-anonymized or summarized.

The invention has, among other things, the advantage that the motor vehicle 10 does not have to provide integrated sensors, but rather receives the precisely and currently determined fuel properties via the tank system 20. The transmitted fuel material property is precise because it is obtained through actual measurement of the fuel by a built-in or integrated sensor device 30, and thus enables a precise adjustment to the fuel to be filled in all versions and a suitable fuel selection can be made.

Reference symbol list

1

Tank system

10

motor vehicle

12

Control unit

14

Motor vehicle tank

15

Storage

16

Level sensor

18

Fuel inlet

19

Mixing device

20

Tank system

21

Gas pump

22

tank

23

Line

24

tap

28

Hose

30

Sensor device

K1

first communication interface

K2

second communication interface

Claims (10)

1. Refuelling system (1) for a motor vehicle, comprising:

   - a motor vehicle (10), comprising:

   a first communication interface (K1); and

   a control unit (12);

   - a refuelling installation (20), comprising:
   a second communication interface (K2), which has a communication connection to the first communication interface (K1) for the transmission of data; and a tank (22) with a fuel;

   characterized in that

   the refuelling installation (20) comprises a sensor device (30), which is configured to determine a fuel material property of the fuel of the refuelling installation (20) and to transmit this to the motor vehicle (10) by means of the first and second communication interfaces (K1, K2); and

   the control unit (12) of the motor vehicle (10) is configured to control a vehicle component on the basis of the fuel material property determined by the sensor device (30).
2. Refuelling system (1) according to Claim 1, characterized in that the sensor device (30) comprises a spectroscopic measuring instrument.
3. Refuelling system (1) according to either of Claims 1 and 2, characterized in that the refuelling installation (20) comprises a fuel-pump nozzle (24) and a line (23) between the tank (22) and the fuel-pump nozzle (24), the sensor device (30) being positioned and configured so as to determine the fuel material property of the fuel in the line (23) or at the fuel-pump nozzle (24).
4. Refuelling system (1) according to one of Claims 1 to 3, characterized in that the sensor device (30) is positioned and configured so as to determine the fuel material property of the fuel in the tank (22) of the refuelling installation (20).
5. Refuelling system (1) according to one of Claims 1 to 4, characterized in that the sensor device (30) is configured to perform a determination of the age of the fuel and/or to ascertain a measure of the renewability of the fuel on the basis of the age determination, and to transmit this to the motor vehicle (10) by means of the first and second communication interfaces (K1, K2).
6. Refuelling system (1) according to one of Claims 1 to 5, characterized in that the control unit (12) is configured to control a quantity of the intake of fuel into the motor vehicle (10) on the basis of the fuel material property determined by the sensor device (30).
7. Refuelling system (1) according to Claim 6, characterized in that the control unit (12) is configured to control the quantity of the intake of fuel into the motor vehicle (10) also on the basis of a capacity of a vehicle fuel tank (14) and the fuel material property of a fuel in the motor vehicle (10) located therein.
8. Refuelling system (1) according to one of Claims 1 to 7, characterized in that the control unit (12) is configured to determine a degree of demiscibility of the fuel of the vehicle fuel tank (14) and the fuel of the tank (22) of the refuelling installation (20) on the basis of the fuel material property determined by the sensor device (30), the fuel material property of the fuel of the vehicle fuel tank (14) and the capacity of the vehicle fuel tank (14), and, on the basis of the degree of demiscibility, to control the quantity of the intake of fuel and/or to control a mixing device (19) for mixing.
9. Refuelling system (1) according to either of Claims 7 and 8, characterized in that the control unit (12) is configured to determine a maximum delivery quantity, and to control the fuel delivery in such a manner that the delivered quantity of the intake of fuel corresponds to the maximum delivery quantity.
10. Refuelling system (1) according to one of Claims 1 to 9, characterized in that the control unit (12) is configured to adjust a stored service interval of a vehicle component of the motor vehicle (10) on the basis of the transmitted fuel property.

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