A method for operating and / or filling a tank of a compressed gas supply system, and an electronic device

Abstract

The present invention relates to a method for operating and / or tank filling a compressed gas supply system (34) having at least two compressed gas tanks (15, 16, 17, 18, 19) connected to an anode path (2) of a fuel cell system (1). 【Means for solving the problem】 In order to improve thermal safety during operation and / or tank filling of the compressed gas supply system (34), an injection path having an actively switchable injection valve and a relief path having an actively switchable relief valve are included for each compressed gas tank (15, 16, 17, 18, 19), and valve devices (21, 22, 23, 24, 25) attached to the pressure tanks (15, 16, 17, 18, 19) are individually controlled through a sensor device including at least one sensor for detecting the current temperature in each valve device (21, 22, 23, 24, 25) and a control device connected with respect to the detection.

Description

Technical Field

[0001] The present invention relates to a method for operating and / or tank filling a compressed gas supply system having at least two compressed gas tanks connected to the anode path of a fuel cell system. In addition, the present invention relates to a control device for an electronic device, preferably a vehicle, in particular a fuel cell vehicle.

Background Art

[0002] From Patent Document 1, a method for initial conditioning of a fuel cell of a fuel cell unit for a fuel cell vehicle is known. The fuel cell is controllable by a control device of the fuel cell unit, and the fuel cell is at least partially or fully initially conditioned by the control device. From Patent Document 2, a method for operating a fuel cell system is known. In this method, hydrogen is taken out from a hydrogen reservoir and supplied to the anode of a fuel cell stack via an anode path. The mass flow rate of hydrogen is set by a hydrogen metering valve arranged in the anode path, and the pressure is variably adjusted by a controllable pressure reducer arranged in the anode path upstream of the hydrogen metering valve regardless of the mass flow rate. The pressure is adjusted depending on at least one current condition, in particular ambient temperature, the time point of the most recent tank filling process, the filling level of the hydrogen reservoir, the calibrated pressure after the pressure reducer, the pressure at the anode, the pressure at the cathode, and / or the delivered hydrogen mass flow rate. From Patent Document 3, a similar method for operating a fuel cell system is known, in which hydrogen taken out from a compressed gas container is thermally conditioned by a heat transfer device arranged in the anode path.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Patent Document 2

[0004] The object of the present invention is to simplify and / or improve the operation and / or tank filling of a compressed gas supply system having at least two compressed gas tanks connected to the anode path of a fuel cell system. [Means for Solving the Problems]

[0005] This problem is solved by individually controlling, through a sensor device including at least one sensor for detecting the current temperature in each valve device and a control device connected with respect to the detection, a valve device attached to a pressure tank, which includes an injection path having an actively switchable injection valve and a relief path having an actively switchable relief valve for each compressed gas tank, in a method of operating and / or tank filling a compressed gas supply system having at least two compressed gas tanks connected to an anode path of a fuel cell system. This method is applied, for example, in a fuel cell system including a hydrogen-based fuel cell in which hydrogen is converted into electrical energy by oxygen. The electrical energy thus provided is utilized for driving in mobile applications, for example, by an electric motor of a vehicle. Alternatively, this method according to the patent application can also be applied in an internal combustion engine system in which hydrogen is utilized for combustion. By means of the actively switchable valves, each compressed gas tank can be individually filled and emptied. This brings great advantages, on the one hand, when filling the compressed gas tank in a compressed gas supply system of a corresponding filling station, such as a hydrogen station. On the other hand, the compressed gas contained in the compressed gas tank, especially hydrogen, can be transported between individual compressed gas tanks depending on the necessity, during the operation of the compressed gas supply system or when the vehicle equipped with the compressed gas supply system is stopped. In that way, time can be saved during tank filling on the one hand. In addition to this, more compressed gas can be injected into individual compressed gas tanks, possibly more than in a conventional compressed gas supply system. Furthermore, individual compressed gas tanks can also be operated below the minimum limit pressure when necessary. This is because individual compressed gas tanks can be quickly and easily disconnected from and connected to the compressed gas supply system for a certain period of time by closing the actively switchable valves when necessary.In the valve device attached to each individual compressed gas tank, preferably, a sensor device including a plurality of sensors is used, and not only the temperature is detected, but also other operating data of the fluid such as the pressure at the branch of the valve device and / or the mass flow rate through each valve device is preferably detected by the sensor device at each valve device during the injection of the compressed gas tank or during the discharge of the contents. The control device is equipped with an appropriate software product to process the signals of the sensors of the sensor device and to control the switching valves, that is, the actively switchable injection valve and the actively switchable relief valve, individually accordingly.

[0006] A preferred embodiment of the method is that the control device is equipped with a data set product including reference data and / or limit data of the fluid, and this is used to control the valve device depending on the current temperature detected by the valve device during the tank filling process and / or during the operation of the compressed gas supply system, so that the compressed gas tank temperature in the compressed gas tank, which is also detected, is kept lower than a first limit temperature. The reference data and / or limit data of the fluid include at least one limit temperature, preferably a plurality of different limit temperatures, a temperature characteristic curve, and / or a temperature characteristic map. The compressed gas tank temperature is detected by a suitable sensor in all compressed gas tanks. There is an advantage that the temperature of hydrogen in each injection path and relief path can be detected through temperature detection at the valve device. In that way, in combination with the also detected compressed gas tank temperature, extremely efficient temperature control or temperature regulation becomes possible both during tank filling and during the operation of the compressed gas supply system.

[0007] Another preferred embodiment of the present method is that the control device is equipped with a data set product containing reference data and / or limit data of the fluid, and this is used to control the valve device depending on the current temperature detected by the valve device during the tank filling process and / or during the operation of the compression gas supply system, so that the rise in the individual compression gas tank temperature in one of the compression gas tanks is restricted immediately through the control of each valve device when the second limit temperature is reached in the corresponding compression gas tank. Regarding the restriction of the individual compression gas tank temperature through the control of each valve device, the English concept of "dilating" can also be applied. "Dilating" means, in particular, reduction, lowering control, or lowering control. By using two limit temperatures, the temperature control or temperature control can be further improved during operation and during the tank filling of the compression gas supply system.

[0008] Another preferred embodiment of the present method is that in order to meet the predetermined safety requirements, the injection path of the compression gas tank whose detected compression gas tank temperature is below the first limit value is released through the injection valve of each valve device. The safety requirements include, for example, reaching the safety value defined by law during the operation of the compression gas supply system. When the predetermined safety value is reached, the injection path of the compression gas tank is blocked again.

[0009] Another preferred embodiment of the present method is that at least one relief path of the compression gas tank is released through the relief valve of each valve device in order to accurately discharge the heat entering each compression gas tank from the outside from the compression gas tank. Thereby, the safety during operation and / or during the tank filling of the compression gas supply system can be further improved. As soon as a sufficient amount of heat is discharged, the relief path of each compression gas tank is blocked again.

[0010] Another preferred embodiment of the method is characterized in that the filling path and / or the relief path of the valve device are accurately controlled through a control device in order to temporally control the temperature of the compressed gas tank. An appropriately optimized withdrawal strategy from each individual compressed gas tank enables the desired limitation of the temperature in the compressed gas tank in a simple manner. In this way, certain safety requirements can be easily met.

[0011] Another preferred embodiment of the method is characterized in that, when the compressed gas tanks have different internal tank pressures during tank filling, the compressed gas tanks are filled in a cascaded manner based on the control of the injection valve through a check valve in the filling path of the attached valve device. The injection into the corresponding compressed gas tank is preferably only carried out when the internal tank pressure of the compressed gas tank is exceeded during tank filling. In this way, the efficiency during tank filling can be effectively improved.

[0012] Another preferred embodiment of the method is characterized in that compressed gas tanks having different storage volumes are tank-filled not simultaneously but with a temporal shift through their respective attached filling paths, and the filling path of the compressed gas tank with a larger storage volume is released through the control device earlier in time than the filling path of the compressed gas tank with a smaller storage volume. For example, if there are two compressed gas tanks of different sizes, first, the larger compressed gas tank is filled. If there are multiple larger compressed gas tanks, it is preferable that they are filled in a cascaded manner and then the smaller compressed gas tank is filled. During the tank filling process, when the temperature of the compressed gas in one compressed gas tank exceeds the limit temperature, the injection process of each compressed gas tank can simply be aborted, while the other compressed gas tanks are simply continuously injected.

[0013] Another preferred embodiment of the present method is characterized in that, in order to perform internal equalization in the compressed gas supply system, the compressed gas is accurately transferred between the respective compressed gas tanks via an attached valve device. Also in this case, the control is preferably performed through a control device. By transferring the compressed gas between the respective compressed gas tanks, an intelligent operation strategy and / or a tank filling strategy can be enabled through the control device, for example, by utilizing artificial intelligence. Before reaching the limit temperature, the injection process of the corresponding compressed gas tank can be accurately delayed, for example.

[0014] The present invention also relates to a compressed gas supply system having at least two compressed gas tanks connected to the anode path of a fuel cell system, and each of the compressed gas tanks is attached with a valve device having an injection path provided with an actively switchable injection valve and a relief path provided with an actively switchable relief valve. At this time, the relatively high manufacturing costs required for the paths and the actively switchable valves in the valve device are intentionally tolerated.

[0015] A preferred embodiment of the compressed gas supply system is characterized in that the injection path and the relief path of the valve device are fluidly connected in parallel between the tank internal space and the branch of each compressed gas tank. Thereby, it becomes possible in a simple manner to individually inject each compressed gas tank via an injection path having an actively switchable injection valve. Each compressed gas tank can be individually relieved via a relief path having a switchable relief valve. In this way, the compressed gas supply system can be operated more efficiently than a conventional compressed gas supply system not only during tank filling but also during operation under extreme environmental conditions, particularly environmental temperature.

[0016] Another preferred embodiment of the compressed gas supply system is characterized in that the injection valve of the injection path is arranged between a branch portion and a check valve that shuts off in the direction of the injection valve, and in the relief path, a check valve that shuts off in the direction of the relief valve is arranged between the relief valve and the branch portion. Thereby, malfunction during the operation of the compressed gas supply system is avoided.

[0017] Another preferred embodiment of the compressed gas supply system is characterized in that the valve device is integrated into a valve block assembled to each compressed gas tank together with the injection path, the injection valve, the relief path, the relief valve, and the branch portion. The valve block includes, in addition to the above components, other components that are partially defined by law, such as check valves, filters, sensors, and particularly preferably a pressure limiter. The valve block is preferably assembled to the end of each compressed gas tank. For manufacturing engineering reasons, the valve block is preferably manufactured independently of the compressed gas tank. The valve block is, for example, screwed into the opening of the compressed gas tank. A simple sealing ring, such as an O-ring, can be used to seal between the valve block and the compressed gas tank. By integrating an actively switchable valve into the valve block, a combination of a conventional compressed gas tank and the valve device according to the patent application becomes possible in a simple manner.

[0018] Another preferred embodiment of the compressed gas supply system is characterized in that the injection valve and the relief valve are manufactured as electromagnetically operable 2 / 2-way valves. The 2 / 2-way valve includes a closed position and an open position where each path is released. Both valves are preferably initially stressed to their respective closed positions where the fluid passage through each path is blocked. The valve can be opened by electromagnetic control. Thereby, the safety during the operation of the compressed gas supply system is improved.

[0019] Another preferred embodiment of the compressed gas supply system is characterized in that the injection valve and the relief valve are connected with respect to detection to a sensor device including at least one sensor for detecting fluid operation data such as the pressure, temperature, and / or mass flow rate of the branch portion, and are connected with respect to control to a control device. Thereby, comfortable control of the temperature, pressure, and / or filling level in each compressed gas tank becomes possible in a simple manner. Preferably, a data set including corresponding reference data and / or limit data regarding the pressure, temperature, and / or mass flow rate is stored in the control device.

[0020] In the method of operating the compressed gas supply system described above, the above-described problems are alternatively or additionally solved by the injection valve and the relief valve being individually controlled by the control device depending on the fluid operation data detected by the sensor device. In this way, it is possible to individually inject into each individual compressed gas tank as needed and to individually discharge the contents of each individual compressed gas tank. As a result, on the one hand, advantages are brought about during the injection of the compressed gas tank of the compressed gas supply system. In addition to this, significant advantages are brought about during the operation of the compressed gas supply system.

[0021] A preferred embodiment of the method is characterized in that the injection valve and the relief valve are individually controlled by the control device so that the compressed gas tank is filled and / or emptied non-uniformly. This is particularly preferred when the compressed gas supply system includes compressed gas tanks of different sizes and / or when the compressed gas tanks are exposed to different environmental conditions, particularly environmental temperatures, when assembled. The reason is that, for example, some compressed gas tanks are placed further outside inside or on the surface of an automobile, which can lead to these compressed gas tanks being heated more rapidly than the compressed gas tanks placed further inside the vehicle when strong sunlight is incident.

[0022] Furthermore, the present invention relates to a control device of an electronic device, preferably of a vehicle, in particular of a fuel cell vehicle, which is set up to carry out the method described above. By means of the electronic device, the valve devices of the individual compressed gas tanks can be controlled individually. In this way, a comfortable control of the filling level, temperature, and / or pressure in the individual compressed gas tanks of the compressed gas supply system becomes possible.

[0023] The present invention also relates, optionally, to valve devices for the compressed gas supply system described above, in particular valve blocks, injection valves, relief valves, sensor devices, sensors, check valves, and / or compressed gas tanks. The aforementioned components can be handled separately.

[0024] Other advantages, components, and specific details of the present invention will become apparent from the following description, which specifically describes various embodiments with reference to the drawings.

Brief Description of the Drawings

[0025]

Figure 1

Figure 2

Embodiments for Carrying Out the Invention

[0026] In FIG. 1, a hydrogen station 40 is schematically illustrated. By arrow 38, it is suggested that an automobile, which has a fuel cell system 1 and is not shown in detail, is filled with hydrogen at the hydrogen station 40.

[0027] The fuel cell system 1 includes a fuel cell stack (not shown in detail) having fuel cells each including an anode that receives a supply of hydrogen via the anode path 2. The structure and function of such a type of fuel cell system are well known.

[0028] In the anode path 2, a check valve 3, a filter 4, a pressure sensor 5, a temperature sensor 6, a temperature sensor 8, another pressure sensor 9, another filter 10, a pressure reducer 11, another filter 12, and a check valve 13 are arranged. A fluid branch portion 7 is provided between the temperature sensor 6 and the temperature sensor 8. At the fluid branch portion 7, a manifold pipe 14 communicates with the anode path 2.

[0029] A total of five compressed gas tanks 15, 16, 17, 18, and 19 of the compressed gas supply system 34 are fluid-connected to the manifold pipe 14. The compressed gas tanks 15 to 19 are manufactured with partially different sizes. The compressed gas tanks 15 to 17 are approximately the same size, but are manufactured larger than both of the compressed gas tanks 18 and 19 that are manufactured with the same size.

[0030] The compressed gas tanks 15 to 19 are each equipped with valve devices 21 to 25 at the left end of FIG. 1. The compressed gas tanks 15 to 19 are each equipped with valve devices 26 to 30 at the right end of FIG. 1. Through the valve devices 26 to 30, the compressed gas tanks 15 to 19 are connected to the manifold pipe 20. The manifold pipe 20 serves, for example, to manually empty the compressed gas tanks 15 to 19. In that case, the valve devices 26 to 30 are manufactured as tank discharge valves.

[0031] All of the valve devices 21 to 25 are manufactured identically, and with reference to FIG. 2 below, the valve device 21 at the left end of the compressed gas tank 15 in FIG. 1 will be taken up and described in detail. The valve device 21 is connected to the manifold pipe 14 via a connecting pipe or a coupling pipe 31. In this way, the internal tank space of the compressed gas tank 15, which is labeled 64 in FIG. 2, can be connected to the manifold pipe 14 and the anode path 2 via the valve device 21.

[0032] As suggested in FIG. 2, the valve device 21 is integrated into a valve block 50 that is assembled to the upper end of a compressed gas tank 15, which is fabricated, for example, as a gas cylinder, as viewed in FIG. 2.

[0033] Above FIG. 2, a hydrogen station 40 having a tank path 38 symbolically indicated by an arrow is schematically shown. The hydrogen station 40 can be connected for control via an infrared interface 41 and a control line 42 to a control device 43. The control device 43 is attached to a compressed gas supply system 34 and a fuel cell system 1 in a fuel cell vehicle equipped with the fuel cell system 1 shown in FIG. 1.

[0034] The hydrogen station 40 is suggested above FIG. 2. Below FIG. 2, the upper end of a compressed gas tank 15 fabricated as a gas cylinder is suggested as viewed in FIG. 2. The tank internal space 64 of the compressed gas tank 15 is connected to a discharge path 61, an injection path 65, and a relief path 70. These three paths 61, 65, and 70 extend through the valve block 50.

[0035] Above FIG. 2, a connecting pipe 31 is connected to the valve block 50 at a connection point 52. A connecting pipe 51 extends from the connection point 52 to a fluid branch 53 of the valve block 50. The connecting pipe 51 is preferably fabricated as a connecting passage within the valve block 50. For the sake of convenience, all fluid connections will be referred to as pipes hereinafter. However, within the valve block 50, it is preferred that all pipes be fabricated as bores.

[0036] The connecting pipe 51 is provided with an optional hydraulic resistance 56 in the form of a throttle. A filter 57 is arranged between the hydraulic resistance 56 and the branch portion 53. Starting from the branch portion 53, a discharge path 61 communicating with the internal space 64 of the tank extends. In the discharge path 61, two valves 62 and 63 are connected in series. The valve 62 is a manual discharge valve or a drain valve. Through the valve 62, when necessary, for example, when the service life has passed and the use is terminated, the content of the compressed gas tank 15 can be manually discharged.

[0037] The valve 63 is a pressure relief valve that can be activated by heat. The internal space 64 of the tank can be relieved through the valve 63. A manually operable shut-off valve 58 is arranged between the branch portion 53 and the branch portion 54. The manually operable shut-off valve 58 serves to safely close the compressed gas tank 15, for example, during repair.

[0038] Starting from the branch portion 54, a sensor line 59 extends, through which operating data such as pressure, temperature, and / or fluid mass flow rate is detected by a sensor device 60 at the branch portion 54 of the valve block 50 during the operation of the compressed gas supply system. The connecting pipe 51 extending from the branch portion 52 communicates with the branch portion 55. Starting from here, an injection path 65 extends, and a relief path 70 communicates here.

[0039] In the injection path 65, an injection valve 66 and a check valve 67 are connected in series. The check valve 67 opens in the direction of the internal space 64 of the tank and closes in the direction of the injection valve 66. The injection path 65 extends parallel to the relief path 70 from the branch portion 55.

[0040] In the relief path 70, a check valve 71, a relief valve 72, a filter 73, and a flow-through restrictor 74 are connected in series. The check valve 71 blocks in the direction of the relief valve 72 and opens in the direction of the branch portion 55. The flow-through restrictor 74 serves to limit leakage in the event of an undesirable pipe breakage.

[0041] The injection valve 66 and the relief valve 72 are manufactured as 2 / 2-way valves having an open position and a closed position. Both valves 66 and 72 are operated electromagnetically and are connected with respect to control to the control device 43. Both valves 66 and 72 are initially stressed to their respective closed positions, as suggested by the symbol of a spring. The sensor device 60 is also connected with respect to detection or with respect to control to the control device 43. In FIG. 2, a control line or signal line or sensor line 76 is suggested by a dashed line.

[0042] The control device 43 is equipped with software by which the sensor signals detected by the sensor device 60 during operation of the compressed gas supply system 34 are processed. By the sensor of the sensor device 60, for example, temperature, pressure, mass flow rate, flow direction, and possibly other measured quantities are detected at the branch 54 of the valve block 50.

[0043] Through the control device 43, the compressed gas tanks 15 to 19 are individually controlled for non-uniform injection from and / or non-uniform discharge into the compressed gas tanks 15 to 19. For this purpose, the injection valve 66 and the relief valve 72 are actively controlled through the control device 43. In this way, the content of the individual compressed gas tanks 15 to 19 can be discharged so as to be below the allowable operating system limit pressure, while at least one of the compressed gas tanks 15 to 19 is kept energized at least at the allowable operating system limit pressure. In this way, in the compressed gas tank whose content has been discharged so as to be below the allowable operating system limit pressure, a defined amount of compressed gas, in particular hydrogen, is retained and can then be used for conditioning of the fuel cell system 1 at system start-up.

[0044] The active release of the injection path 65 by the control device 43 via the injection valve 66 enables the operation of the compressed gas supply system 34 by the fuel cell system 1 under various different tank internal pressures. The switching valves 66 and 72 are individually controlled according to the operating modes of the vehicle equipped with the fuel cell system 1 and the compressed gas supply system 34, such as driving operation, parking, tank filling, etc.

[0045] Precise temporal control or regulation of the pressure and / or temperature of the individual compressed gas tanks 15 to 19 has the advantage that it enables a pressure reduction below the system's limit pressure. Such a reduction can be particularly preferably carried out under the system mode during pre-injection from a compressed gas tank with low pressure into the system, i.e., when hydrogen is injected, or when conditioning is carried out with hydrogen for operation. Such conditioning can be carried out down to a very low residual pressure. Thereby, the operating range of the system is extended.

[0046] By the method according to the patent application, precise and temporal control or regulation of the compressed gas tank temperature is possible by an optimized withdrawal strategy from the individual compressed gas tanks. In that way, it is possible to limit the compressed gas tank temperature in the individual compressed gas tanks in order to improve the operating safety. Through an actively switchable valve, it is possible to respond earlier by dilating to an increase in the compressed gas tank temperature.

[0047] In the case where the compressed gas tanks have different pressures during tank filling, the check valve 67 of the injection path 65 automatically acts for cascade tank filling after the switching of the injection valve 66. The corresponding compressed gas tank is only injected when the current pressure of the corresponding compressed gas tank is exceeded during tank filling.

Explanation of Reference Signs

[0048] 1 Fuel cell system 2 Anode path 15, 16, 17, 18, 19 Compressed gas tank 21, 22, 23, 24, 25 Valve device 26, 27, 28 Valve device 34 Compressed gas supply system 43 Control device 60 Sensor device 65 Injection path 66 Injection valve 70 Relief path 72 Relief valve

Claims

1. In a method for operating and / or filling a compressed gas supply system (34) having at least two compressed gas tanks (15, 16, 17, 18, 19) connected to an anode path (2) of a fuel cell system (1), an injection path (65) having an actively switchable injection valve (66) and a relief path (70) having an actively switchable relief valve (72) are included for each compressed gas tank (15, 16, 17, 18, 19), and valve devices (21, 22, 23, 24, 25) attached to the pressure tanks (15, 16, 17, 18, 19) are individually controlled through a sensor device (60) including at least one sensor for detecting the current temperature in each of the valve devices (21, 22, 23, 24, 25) and a control device (43) connected with respect to the detection. The method is characterized by this.

2. The control device (43) is equipped with a data set product including reference data and / or limit data of the fluid, and using this, during the tank filling process and / or during operation of the compressed gas supply system (34), the valve devices (21, 22, 23, 24, 25) are controlled depending on the current temperature detected by the valve devices (21, 22, 23, 24, 25), and the compressed gas tank temperature in the compressed gas tanks (15, 16, 17, 18, 19) which is also detected is kept lower than a first limit temperature. The method according to Claim 1 is characterized by this.

3. The control device (43) is equipped with a data set product including reference data and / or limit data of the fluid, and using this, during the tank filling process and / or during operation of the compressed gas supply system (34), the valve devices (21, 22, 23, 24, 25) are controlled depending on the current temperature detected by the valve devices (21, 22, 23, 24, 25), and when the rise in the individual compressed gas tank temperature in one of the compressed gas tanks (15, 16, 17, 18, 19) reaches a second limit temperature in the corresponding compressed gas tank (15, 16, 17, 18, 19), the control of each of the valve devices (21, 22, 23, 24, 25) is restricted through this. The method according to Claim 2 is characterized by this.

4. The method according to claim 2 or 3, characterized in that, in order to meet the specified safety requirements, the injection path (65) of the compressed gas tank (15, 16, 171, 181, 19) in which the detected compressed gas tank temperature is below the first limit value is respectively released through the injection valve (66) of the valve device (21, 22, 23, 24, 25).

5. The method according to any one of claims 2 to 4, characterized in that, in order to accurately discharge the heat entering each of the compressed gas tanks (15, 16, 17, 18, 19) from the outside from the compressed gas tanks (15, 16, 17, 18, 19), at least one of the relief paths (70) of the compressed gas tanks (15, 16, 17, 18, 19) is respectively released through the relief valve (72) of the valve device (21, 22, 23, 24, 25).

6. The method according to any one of claims 1 to 5, characterized in that the injection path (65) and / or the relief path (70) of the valve device (21, 22, 23, 24, 25) are accurately controlled through the control device (43) in order to temporally control the compressed gas tank temperature in the compressed gas tanks (15, 16, 17, 18, 19).

7. The method according to any one of claims 1 to 6, characterized in that when the compressed gas tanks (15, 16, 17, 18, 19) have different tank internal pressures during tank filling, the compressed gas tanks (15, 16, 17, 18, 19) are filled in a cascaded manner based on the control of the injection valve (66) through the check valve (67) in the injection path (65) of the attached valve device (21, 22, 23, 24, 25).

8. The method according to any one of claims 1 to 7, characterized in that the compressed gas tanks (15, 16, 17, 18, 19) having different storage volumes are filled with the tank in a time-shifted manner rather than simultaneously through their respective attached injection paths (65), and the injection path (65) of the compressed gas tank (26, 27, 28) with a large storage volume is released through the control device (43) earlier in time than the injection path (65) of the compressed gas tank (29, 30) with a small storage volume.

9. The method according to any one of claims 1 to 8, characterized in that, in order to effect internal equalization in the compression gas supply system (34), the compression gas is accurately transferred between the respective compression gas tanks (15, 16, 17, 18, 19) via the attached valve devices (21, 22, 23, 24, 25).

10. An electronic device, preferably a control device (43) of a vehicle, in particular a fuel cell vehicle, set up to carry out the method according to any one of claims 1 to 9.

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