Storage tank fixing assembly and control method thereof

Abstract

The invention relates to a storage tank fixing assembly. The tank fixing assembly includes: a fixing frame connected to a vehicle body frame and extending in one direction; the supporting frame is used for supporting the storage tank, so that the storage tank slides in one direction relative to the fixed frame; and a damping member for adjusting the relative movement of the support frame in one direction with respect to the fixed frame.

Description

[0001] Cross-reference to related applications

[0002] This application claims the benefit of Korean Patent Application No. 10-2023-0155740 filed in the Korean Intellectual Property Office on November 10, 2023, the entire contents of which are incorporated herein by reference. Technical Field

[0003] The present disclosure relates to a storage tank fixing assembly and a control method thereof. Background Art

[0004] Recently, as awareness of environmental crises and depletion of petroleum resources increases, research and development of electric vehicles, which are eco-friendly vehicles, have been highlighted. Electric vehicles include plug-in hybrid electric vehicles (PHEVs), battery electric vehicles (BEVs), and fuel cell electric vehicles (FCEVs).

[0005] The hydrogen battery vehicle includes a fuel cell stack that generates electricity by using hydrogen, a tank that stores hydrogen, and a battery pack that stores electric energy generated by regenerative braking.

[0006] Hydrogen battery vehicles basically require a large-capacity tank to increase their cruising range. In order to ensure the long cruising range of hydrogen battery vehicles, the tank has a cylindrical shape extending in the width direction of the vehicle.

[0007] Meanwhile, hydrogen battery vehicles can be divided into two structures based on the way the tank is fixed in the vehicle: a neck mounting structure that supports the nozzles at opposite ends in the longitudinal direction; and a valley mounting structure that supports the body portion.

[0008] Hydrogen battery vehicles may be at risk of damage due to road vibration and body frame torsion. Therefore, there is an increasing demand for structural components that can more stably resist road vibration or body frame torsion while preventing hydrogen battery vehicles from being damaged. Summary of the invention

[0009] The present disclosure has been made to solve the above-mentioned problems occurring in the prior art while keeping the advantages achieved by the prior art intact.

[0010] The embodiments of the present disclosure provide a storage tank fixing assembly and a control method thereof, by which the degree of freedom of a fixing frame of the storage tank can be adjusted according to circumstances.

[0011] The embodiments of the present disclosure also provide a storage tank fixing assembly and a control method thereof, by which the relative movement of the storage tank with respect to the fixing frame can be adjusted according to the neck mounting structure of the storage tank.

[0012] The embodiments of the present disclosure also provide a storage tank fixing assembly and a control method thereof, by which the movement of the storage tank relative to the fixing frame can be adjusted according to the valley mounting structure of the storage tank.

[0013] The technical problems to be solved by the present disclosure are not limited to the above-mentioned problems, and any other technical problems not mentioned herein will be clearly understood by those skilled in the art to which the present disclosure belongs from the following description.

[0014] According to an embodiment of the present disclosure, a tank fixing assembly includes: a fixing frame connected to a vehicle body frame and extending in one direction; a supporting frame supporting the tank so that the tank slides in one direction relative to the fixing frame; and a damping member regulating relative movement of the supporting frame relative to the fixing frame in one direction.

[0015] The damping member may be configured to allow the support frame to move more freely relative to the fixing frame in one direction based on the displacement of the vehicle body frame in the one direction being greater than or equal to a preset value.

[0016] The damping member may include a damper disposed between one end connected to the fixing frame and an opposite end connected to the supporting frame, and include a coil spring extending around the damper.

[0017] The tank fixing assembly may further include a detection sensor that detects displacement of the vehicle body frame in one direction.

[0018] The damping member may have a first mode and a second mode, in which, in the second mode, a relative displacement of the support frame relative to the fixed frame in one direction is allowed to be greater than the relative displacement in the first mode, the damping member may be controlled to switch from the first mode to the second mode based on a displacement of the vehicle body frame in one direction being greater than or equal to a first preset value, the damping member may be controlled to switch from the second mode to the first mode based on a displacement of the support frame relative to the fixed frame in one direction or in a direction opposite to the one direction caused by the damping member being greater than a second preset value, and a damping coefficient of the damper in the second mode may be less than the damping coefficient of the damper in the first mode.

[0019] The fixed frame may include a first fixed frame and a second fixed frame, the first fixed frame supports one side of the tank, the second fixed frame extends parallel to the first fixed frame and supports the opposite end of the tank, and the support frame includes a first support frame and a second support frame, the first support frame supports one side of the tank, the second support frame supports the opposite end of the tank, and the damping member may include a first damping member and a second damping member, the first damping member adjusts the relative movement of the first support frame relative to the first fixed frame in one direction, and the second damping member adjusts the relative movement of the second support frame relative to the second fixed frame in one direction.

[0020] The tank fixing assembly may further include a controller that controls at least one of the first damping member and the second damping member based on a difference between a displacement of the first body frame in one direction and a displacement of the second body frame in one direction being greater than or equal to a preset value.

[0021] The one direction may be an upward direction, and the controller may control the first damping member based on displacement of the first body frame in the upward direction being greater than displacement of the second body frame in the upward direction so as to allow the first support frame to move more freely relative to the first fixed frame in the vertical direction.

[0022] The storage tank fixing assembly may further include a guide frame fixed to the fixing frame and guiding the sliding movement of the support frame in one direction.

[0023] The guide frame may include a slide groove, the support frame is inserted into the slide groove, so as to guide the support frame to slide in one direction, and the slide groove extends along the one direction.

[0024] The support frame may include a sliding portion inserted into the slide groove, and the guide frame may include an engaging portion inserted into an engaging recess formed on an opposing surface of the sliding portion.

[0025] The storage tank securing assembly may further include a support frame coupled to the securing frame and a torsion bar coupled to the support frame and the support frame.

[0026] The tank fixing assembly may further include a supporting frame coupled to the fixing frame, a bell rocker coupled to the fixing frame, and a push rod connecting the bell rocker and the supporting frame, and the damping member may include one end coupled to the bell rocker and an opposite end fixed to the supporting frame.

[0027] The support frame may include a guide groove into which the guide frame is inserted to guide sliding of the support frame in one direction, and the guide groove extends in the one direction.

[0028] The guide bracket may include a guide portion inserted into the guide groove, and the support bracket may include a locking portion inserted into a locking recess formed on an opposite surface of the guide portion.

[0029] The support frame may be coupled to a belt bracket having a belt that surrounds a main body of the tank.

[0030] According to an embodiment of the present disclosure, a method for controlling a tank fixing assembly is provided, the tank fixing assembly comprising: a first vehicle body frame and a second vehicle body frame disposed in a vehicle interior; a tank; a first fixing frame and a second fixing frame connected to the first vehicle body frame and the second vehicle body frame and extending in a vertical direction, respectively; a first support frame and a second support frame, the first support frame supporting one side of the tank and the second support frame supporting an opposite end of the tank; and a first damper and a second damper, the first damper regulating movement of the first support frame in a vertical direction and the second damper regulating movement of the second support frame in a vertical direction, the method comprising: detecting displacement of the first vehicle body frame or the second vehicle body frame; determining a difference between the displacements of the first vehicle body frame and the second vehicle body frame in a vertical direction; determining whether the vehicle is in a severe form condition based on the difference between the displacements; confirming whether the displacement of the first vehicle body frame in an upward direction is greater than the displacement of the second vehicle body frame in an upward direction based on the difference between the displacements being greater than or equal to a first preset value; and based on the displacement of the first vehicle body frame being greater than or equal to the displacement of the second vehicle body frame, performing control to switch the first damper from a first mode to a second mode in which the relative movement of the first support frame relative to the first fixed frame in a vertical direction is allowed to be freer.

[0031] The preset value may be a first preset value, and the method may further include: switching the first damper from the second mode to the first mode based on a displacement of the first support bracket relative to the first fixing frame in a vertical direction being greater than or equal to a second preset value.

[0032] The method may further include: based on the displacement of the first support frame along the vertical direction being less than a second preset value, confirming whether the displacement of the first fixing frame along the vertical direction is within a normal range.

[0033] Confirming whether the displacement of the first fixing frame along the vertical direction is within a normal range may include: confirming whether the displacement of the first fixing frame along the vertical direction is less than a third preset value.

[0034] As discussed, the method and system suitably include the use of a controller or processor.

[0035] In another embodiment, a vehicle comprising an apparatus as disclosed herein is provided. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The above and other objects, features and advantages of the present disclosure will become more apparent from the following detailed description in conjunction with the accompanying drawings:

[0037] Figure 1 is a front view of a hydrogen battery vehicle according to an embodiment of the present disclosure;

[0038] Figure 2is a view showing a storage tank, a first fixing frame, and a second fixing frame according to an embodiment of the present disclosure;

[0039] Figure 3 yes Figure 2 an enlarged view of portion "A" shown in FIG.

[0040] Figure 4 yes Figure 2 A side cross-sectional view of portion "A" shown in FIG.

[0041] Figure 5 is an enlarged front view of a storage tank fixing assembly according to an embodiment of the present disclosure;

[0042] Figure 6 Viewed from the bottom Figure 2 A view of portion "A" shown in FIG.

[0043] Figure 7 It is along Figure 6 A cross-sectional view taken along line BB' shown in FIG.

[0044] Figure 8 is a view showing a storage tank, a first fixing frame, and a second fixing frame according to another embodiment of the present disclosure;

[0045] Fig. 9 is a side cross-sectional view of a storage tank fixing assembly according to another embodiment of the present disclosure;

[0046] Fig.10 is a cross-sectional perspective view of a storage tank fixing assembly according to another embodiment of the present disclosure;

[0047] Fig.11 is a schematic diagram showing a storage tank fixing assembly according to another embodiment of the present disclosure viewed from the front side;

[0048] Fig.12 It is along Fig.11 A cross-sectional view taken along line CC' shown in FIG.

[0049] Fig.13 is a schematic diagram showing a vehicle body frame and a connection frame according to an embodiment of the present disclosure viewed from the side;

[0050] Fig.14 is a schematic diagram showing a vehicle body frame according to an embodiment of the present disclosure viewed from the top;

[0051] Fig.15 and Fig.16 is a schematic diagram showing a storage tank according to an embodiment of the present disclosure, the position of which is changed by a force received from a vehicle body frame; and

[0052] Fig.17 is a flow chart of a method for controlling a storage tank securing assembly according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0053] Hereinafter, the preferred embodiments of the present disclosure will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily implement the present disclosure. The following description is one of several embodiments, and when describing an embodiment, the detailed description of known functions or configurations is omitted to clarify the main points of the present disclosure.

[0054] In addition, when describing the components of the embodiments of the present disclosure, terms such as first, second, "A", "B", (a), and (b) may be used. These terms are only used to distinguish these components, and the nature, order, and sequence of the corresponding components are not limited by these terms. Unless otherwise defined, all terms including technical terms or scientific terms have the same meaning as those generally understood by ordinary technicians in the field to which the present disclosure belongs. Unless explicitly defined in the present disclosure, commonly used terms (such as terms defined in dictionaries) should be interpreted as being consistent with the contextual meaning of the relevant technology and not interpreted as ideal or overly formal meanings.

[0055] It should be understood that the term "vehicle" or "vehicular" or other similar terms as used herein include a broad range of motor vehicles, such as passenger cars (including sport utility vehicles (SUVs)), buses, trucks, various commercial vehicles, watercraft (including various ships and boats), aircraft, etc., and include hybrid vehicles, electric vehicles, plug-in hybrid electric vehicles, hydrogen-powered vehicles, and other alternative fuel vehicles (e.g., fuels derived from resources other than petroleum). As referred to herein, a hybrid vehicle is a vehicle having two or more power sources, for example, gasoline-powered and electric vehicles.

[0056] The terms used herein are only used for the purpose of describing specific embodiments, and are not intended to limit the present disclosure. As used herein, unless the context clearly indicates otherwise, the singular forms "one", "an" and "the" are intended to also include plural forms. These terms are only intended to distinguish one component from another component, and these terms do not limit the nature, order or sequence of the components. It should also be understood that when the terms "including" and / or "comprising" are used in this specification, it refers to the presence of the features, wholes, steps, operations, elements and / or parts, but does not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, parts and / or their combinations. As used in this article, the term "and / or" includes any and all combinations of one or more related listed items. Throughout the specification, unless explicitly described to the contrary, the word "including" and variants such as "including" or "containing" will be understood to refer to the inclusion of the elements, but do not exclude any other elements. In addition, the terms "unit", "piece", "part" and "module" described in the specification refer to units for processing at least one function and operation, and can be implemented by hardware components or software components and combinations thereof.

[0057] Although the exemplary embodiments are described as using multiple units to perform the exemplary processes, it should be understood that the exemplary processes can also be performed by one or more modules. In addition, it should be understood that the term "controller / control unit" refers to a hardware device that includes a memory and a processor and is specifically programmed to perform the processes described herein. The memory is configured to store the modules, and the processor is specifically configured to execute the modules to perform one or more processes described further below.

[0058] In addition, the control logic of the present disclosure may be embodied as a non-volatile computer-readable medium on a computer-readable medium containing executable program instructions executed by a processor, a controller, etc. Examples of computer-readable media include, but are not limited to, ROM, RAM, compact disk (CD)-ROM, magnetic tape, floppy disk, flash drive, smart card, and optical data storage device. The computer-readable medium may also be distributed in a network-connected computer system so that the computer-readable medium is stored and executed in a distributed manner, such as through a telematics server or a controller area network (CAN).

[0059] Unless otherwise specified or apparent from the context, as used herein, the term "about" should be understood to be within the normal tolerance range in the art, such as within 2 standard deviations of the mean. "About" can be understood to be within 10%, 9%, 8%, 7%, 6%, 5%, 4%, 3%, 2%, 1%, 0.5%, 0.1%, 0.05%, or 0.01% of the value. Unless the context clarifies otherwise, all numerical values ​​provided herein are modified by the term "about".

[0060] In the following, reference will be made to Figures 1 to 17 The embodiments of the present disclosure are described in detail.

[0061] Figure 1 is a front view of a hydrogen battery vehicle 1 according to an embodiment of the present disclosure.

[0062] refer to Figure 1 The hydrogen battery vehicle 1 may have a frame and a plurality of wheels. The hydrogen battery vehicle 1 may include a tank fixing assembly 10 that supports a tank 40 (see Figure 2 ), the tank extends in the lateral direction of the vehicle (eg, the “X” direction) inside the vehicle. The tank 40 may contain a gas such as hydrogen.

[0063] In the hydrogen battery vehicle 1, a large truck has a higher vehicle height from the road surface and is relatively heavier than a small car, and therefore needs to be installed with more tanks 40 inside the vehicle. However, although the drawings show a large truck, the rights of the present disclosure are not limited thereto.

[0064] In a large truck, a plurality of storage tanks 40 may be stacked in the height direction (eg, “Z” direction) of the vehicle body, and each storage tank 40 may be supported by the tank fixing assembly 10 .

[0065] The tanks 40 stacked in the height direction of the vehicle body are arranged at a high spacing distance from the road surface, thereby generating a risk of damage due to road surface vibration or torsion of the vehicle body frames 2a and 3a (see Fig.13 ).

[0066] Hereinafter, the tank fixing assembly 10 that can more stably support the tank 40 despite the road vibration or the torsion of the vehicle body frames 2a and 3a will be described in detail.

[0067] Figure 2 2 is a view showing the storage tank 40 , the first fixing frame 20 , and the second fixing frame 30 according to an embodiment of the present disclosure. Figure 3 yes Figure 2 An enlarged view of portion "A" is shown in FIG. Figure 4 yes Figure 2 A side cross-sectional view of portion "A" is shown in FIG.

[0068] refer to Figures 2 to 4 , the storage tank fixing assembly 10 may include a first fixing frame 20 and a second fixing frame 30 extending parallel to each other in an upward direction (“Z” direction).

[0069] The first fixing frame 20 may support one side of the storage tank 40, and the second fixing frame 30 may support the opposite end of the storage tank 40. The first fixing frame 20 may be connected by a first connecting frame 2 connected to the first vehicle body frame 2a, and the second fixing frame 30 may be connected by a second connecting frame 3 connected to the second vehicle body frame 3a (see Fig.15 ).

[0070] The first fixing frame 20 and the second fixing frame 30 may be displaced in the vertical direction corresponding to the displacement of the first body frame 2 a and the second body frame 3 a in the vertical direction, respectively.

[0071] The storage tank 40 may include a body portion 41 and a nozzle portion 42 in the width direction of the vehicle (e.g., the "X" direction). The body portion 41 may have a cylindrical shape, and the nozzle portion 42 may be provided at opposite ends of the body portion. The respective nozzle portions 42 may be coupled to the support frame 60. The support frame 60 may be configured to support the storage tank 40.

[0072] That is to say, Figures 2 to 7 The structure shown in FIG. 4 may be a neck mounting structure, in which opposite ends of the storage tank 40 are fixed by a support frame 60 .

[0073] The tank fixing assembly 10 according to an embodiment of the present disclosure may include a guide frame 50 fixed to the fixing surface 21 of the first fixing frame 20. The position of the guide frame 50 may be fixed to the fixing surface 21 of the first fixing frame 20 by a separate fastening member. The guide frame 50 may guide the sliding of the support frame 60 in the vertical direction.

[0074] The sliding structure of the support frame 60 relative to the guide frame 50 in the vertical direction will be described later.

[0075] The support frame 60 may be configured to support the nozzle portion 42 of the storage tank 40 , and relative movement of the support frame 60 with respect to the first fixing frame 20 in a vertical direction may be adjusted by the damping member 70 .

[0076] That is, the support frame 60 may be configured to support the storage tank 40 such that the storage tank 40 slides in an upward direction (“Z” direction) or a downward direction (“−Z” direction) relative to the first fixed frame 20 .

[0077] The storage tank fixing assembly 10 may include a damping member 70 that adjusts relative movement of the support frame 60 with respect to the first fixing frame 20 in an upward direction (“Z” direction) or a downward direction (“−Z” direction).

[0078] The damping member 70 may include one end 71 connected to the support bracket 60 and an opposite end 72 connected to the first fixing frame 20 , and may be configured to adjust a distance between the first fixing frame 20 and the support bracket 60 .

[0079] The damping member 70 may include a damper 70 a disposed between one end 71 and an opposite end 72 of the damping member 70 , and a coil spring 70 b extending around the damper 70 a .

[0080] The damper 70a may be provided as a hydraulic damper to adjust a damping coefficient, and the coil spring 70b may extend around the damper 70a to have a structure in which an elastic range of the coil spring 70b is limited by the damper 70a.

[0081] That is, since it is difficult to adjust the separation distance between the first fixed frame 20 and the support frame 60 only by the coil spring 70b, the damping member 70 can be set as a spring damper, wherein the coil spring 70b is connected to the damper 70a, making it easier to adjust the separation distance between the first fixed frame 20 and the support frame 60.

[0082] According to this principle, when the linear distance between the one end 71 and the opposite end 72 of the damping member 70 is adjusted, the support bracket 60 may move in the vertical direction relative to the first fixing frame 20 .

[0083] The support frame 60 may include a nozzle coupling portion 61 coupled to the nozzle portion 42 and a sliding portion 65 inserted into the guide frame 50. The nozzle coupling portion 61 and the sliding portion 65 may be combined as separate components or may be integrally provided as one component. The nozzle coupling portion 61 may be provided with a damping member fixing portion 61a coupled to one end 71 of the damping member 70, and may be provided with a torsion bar fixing portion 61b.

[0084] The storage tank fixing assembly 10 may include a support frame 80 extending in a horizontal direction (e.g., an "X" direction) and connecting the first fixing frame 20 and the second fixing frame 30. The support frame 80 may be respectively coupled to the first fixing frame 20 and the second fixing frame 30 to extend obliquely in the horizontal direction when the first fixing frame 20 and the second fixing frame 30 are displaced in the vertical direction.

[0085] Because the structure of the tank fixing assembly 10 according to the embodiment of the present disclosure is a neck mounting structure in which the nozzle portions 42 disposed at opposite ends of the tank 40 are supported, the torsion of the components located at opposite sides of the tank 40 may be stronger than that in the valley mounting structure to be described later.

[0086] Accordingly, the tank securing assembly 10 may include a torsion bar 85 for alleviating torsion of components located on opposite sides of the tank 40 .

[0087] The torsion bar 85 may be coupled while extending along the support frame 80, and opposite ends of the torsion bar may be fixed to the torsion bar fixing portion 61b of the support frame 60. According to this structure, even when the positions of the first fixing frame 20 and the second fixing frame 30 in the vertical direction become different, and therefore, even when the storage tank fixing assembly 10 is twisted, the influence of the twisting is reduced due to the torsion bar 85. This allows a more stable support structure. The support frame 80 may be connected to the support frame 60 by the link member 81.

[0088] As will be described later, a support frame detection sensor 66 may be provided on the fixing surface 21 of the first fixing frame 20. The support frame detection sensor 66 may detect whether the support frame 60 is excessively displaced in the vertical direction relative to the first fixing frame 20. In addition, the position of the support frame detection sensor 66 is not limited thereto, and any sensor for detecting the relative displacement of the support frame 60 relative to the first fixing frame 20 in the upward or downward direction is sufficient.

[0089] Figure 5 is an enlarged front view of a storage tank securing assembly 10 according to an embodiment of the present disclosure. Figure 6 is shown viewed from the bottom Figure 2 A view of portion "A" is shown.

[0090] refer to Figure 5 and Figure 6 , when the body frames 2a and 3a (see Fig.15 ) When the support frame 60 is displaced in the downward direction from the road surface, the support frame 60 moves in the upward direction relative to the first fixed frame 20, and the linear distance between the one end 71 and the opposite end 72 of the damping member 70 can increase and then decrease again, and thus, the support frame 60 can move to become closer to its original position again. At the same time, the torsion bar 85 can also transmit a force to the support frame 60 to prevent the support frame 60 from twisting.

[0091] On the other hand, even when the support frame 60 moves in the downward direction relative to the first fixed frame 20, the linear distance between the one end 71 and the opposite end 72 of the damping member 70 can increase and then decrease again, thereby returning to a position closer to its initial position. At the same time, the torsion bar 85 can also receive a force from the support frame 60 to prevent the support frame 60 from twisting.

[0092] According to this structure, even when the first fixed frame 20 or the second fixed frame 30 is displaced, the support frame 60 and the storage tank 40 may not be able to completely absorb the vibration from the first fixed frame 20 or the second fixed frame 30, and the vibration energy may be partially converted into heat energy or friction energy through the damping member 70, so that the vibration amplitude transmitted to the support frame 60 is relatively reduced.

[0093] That is, since the support frame 60 receives relatively less vibration energy, the storage tank 40 can be supported more stably, thereby reducing the risk of damage to the storage tank 40. In addition, due to the more simplified structure, the weight of the storage tank fixing assembly 10 can be reduced, thereby improving economic efficiency.

[0094] Hereinafter, the sliding of the support frame 60 on the guide frame 50 in the vertical direction will be described.

[0095] Figure 7 It is along Figure 6 A cross-sectional view taken along line BB' shown in FIG.

[0096] refer to Figure 7 The guide frame 50 fixed to the first fixed frame 20 may include a slide groove 51 (see Figure 6 ), the sliding portion 65 is inserted into the sliding groove to guide the support frame 60 to slide in the vertical direction, and the sliding groove extends in the vertical direction.

[0097] The slide groove 51 may be formed on one side facing the slide portion 65 and may extend in a vertical direction. The guide frame 50 may include a groove surface 52 facing the slide portion 65 and engaging portions 53 and 54 protruding toward each other on opposite sides of the groove surface 52.

[0098] The sliding portion 65 may include a sliding surface 65 a contacting the groove surface 52 , and engaging recessed portions 65 b and 65 c formed on opposing surfaces located at opposite sides of the sliding surface 65 a .

[0099] The engaging recesses 65b and 65c may be formed on opposite sides facing in opposite directions of the slide portion 65. Therefore, the engaging portions 53 and 54 of the guide frame 50 may be respectively inserted into the engaging recesses.

[0100] Since the engaging portions 53 and 54 are blocked by the engaging recesses 65 b and 65 c , the movement of the sliding portion 65 in the direction perpendicular to the vertical direction can be restricted, and the sliding portion 65 can slide only in the vertical direction relative to the guide frame 50 .

[0101] Thus, the support frame 60 of the storage tank fixing assembly 10 can move in the vertical direction relative to the first fixing frame 20 .

[0102] At the same time, the above-mentioned guide frame 50, support frame 60, nozzle portion 42 and damping member 70 are respectively the first guide frame 50, the first support frame 60, the first nozzle portion 42 and the first damping member 70, and correspondingly, the second guide frame, the second support frame, the second nozzle portion and the second damping member are arranged adjacent to the second fixed frame 30, so that the relative movement of the support frame 60 relative to the second fixed frame 30 in the vertical direction can be adjusted.

[0103] In addition, the present disclosure is not limited to this, and the guide frame 50 may not be set as a structure separated from the fixed frames 20 and 30, and the groove surface 52 and the snap-fitting parts 53 and 54 protruding from the groove surface 52 may be integrally formed with the fixed frames 20 and 30 on a surface facing the sliding part 65.

[0104] Therefore, even when the vehicle body frames 2a and 3a (see Fig.13 ) can also more stably support the tank fixing assembly 10 when twisted.

[0105] Figure 8 is a view showing a storage tank 140 , a first fixing frame 120 , and a second fixing frame 130 according to another embodiment of the present invention. Fig. 9 is a side cross-sectional view of a storage tank securing assembly 110 according to another embodiment of the present disclosure. Fig.10 is a cross-sectional perspective view of a storage tank fixing assembly 110 according to another embodiment of the present disclosure.

[0106] refer to Figures 8 to 10 , the storage tank fixing assembly 110 may include a first fixing frame 120 and a second fixing frame 130 extending parallel to each other in an upward direction (“Z” direction).

[0107] The first fixing frame 120 may support one side of the storage tank 140, and the second fixing frame 130 may support the opposite end of the storage tank 40. The first fixing frame 120 may be connected to the first vehicle body frame 2a (see Fig.15 ), and the second fixing frame 30 can be connected to the second vehicle body frame 3a.

[0108] The tank fixing assembly 110 according to another embodiment of the present disclosure is a valley mounting structure in which the tank 140 is supported by a band 145a surrounding opposite sides of a main body 141 of the tank 140. Unlike the above-mentioned neck mounting structure, the valley mounting structure can support opposite sides of the main body 141 of the tank 140 and can be supported by a support frame 160 through a band bracket 145b having the band 145a.

[0109] The storage tank fixing assembly 110 may include a guide frame 150 coupled to a fixing surface 121 of the first fixing frame 120 extending in a vertical direction, and include a support frame 160 sliding in a vertical direction with respect to the guide frame 150 .

[0110] As will be described later, the support frame 160 may include a guide groove 161 which is formed on one side facing the first fixing frame 120 and into which the guide frame 150 is inserted.

[0111] The support frame 160 may move in the vertical direction relative to the first fixing frame 120. In other words, the storage tank fixing assembly 110 may further include a damping member 170 configured to adjust the relative movement of the support frame 160 relative to the first fixing frame 120 in the vertical direction.

[0112] The tank fixing assembly 110 may include a support frame 180 coupled to the first fixing frame 120 and the second fixing frame 130 and extending from the first fixing frame 120 toward the second fixing frame 130. Different from what is shown in the figure, the damping member 170 may be configured to connect the support frame 160 and the first fixing frame 120, but in Figure 1 The tanks 40 shown in FIG. 1 can be stacked in the height direction of the vehicle body, whereby the damping member 170 is coupled to a bell rocker arm 190 to avoid interference with adjacent tanks 40, and thus, the relative movement of the support frame 160 relative to the first fixing frame 120 in the vertical direction can be adjusted.

[0113] The bell rocker arm 190 may be coupled to the first fixing frame 120 and may be connected to the support frame 160 by a push rod 191 connecting the bell rocker arm 190 and the support frame 160. In addition, the damping member 170 may include one end 171 coupled to the bell rocker arm 190 and an opposite end 172 fixed to the support frame 180 by a damping member bracket 181. The damping member 170 may correspond to the structure of the damping member 70 described above.

[0114] The bell-shaped rocker arm 190 can rotate one end 171 of the damping member 170 when receiving the relative movement of the support frame 160 relative to the first fixed frame 120 in the vertical direction through the push rod 191 and rotating. Fig.11 and Fig.12 Describe its structure in more detail.

[0115] Fig.11 is a schematic diagram showing a storage tank fixing assembly 110 from a front side according to another embodiment of the present disclosure. Fig.12 It is along Fig.11 A cross-sectional view taken along line CC' shown in FIG.

[0116] refer to Fig.11 and Fig.12 , when the body frames 2a and 3a (see Fig.15 ) When shifted in a downward direction from the road surface, the support frame 160 can move upward relative to the first fixed frame 120, and the bell-shaped rocker arm 190 can be rotated clockwise by the push rod 191, whereby the straight-line distance between the opposite end 172 fixed to the support frame 180 and the bell-shaped rocker arm 190 can be reduced and increased again, so that the support frame 160 can move to become closer to its original position again.

[0117] On the other hand, even when the support frame 160 moves in the downward direction relative to the first fixing frame 120, the bell arm 190 may rotate counterclockwise while the push rod 191 pulls the bell arm 190 in the downward direction. When the bell arm 190 rotates, the support frame 160 may move to its original position again, while the minimum distance between the one end 171 of the damping member 170 coupled to the bell arm 190 and the opposite end 172 fixed to the support frame 180 may increase and then decrease again.

[0118] According to this structure, since the support frame 160 and the tank 140 cannot completely absorb the vibration from the vehicle body frames 2a and 3a through the bell rocker arm 190 and the push rod 191, but the damping member 170 partially absorbs the vibration energy and then transmits it to the support frame 160, the influence of the vibration received by the support frame 160 can be relatively reduced.

[0119] For this structure, the support frame 160 must be able to slide in the vertical direction relative to the guide frame 150. To this end, the support frame 160 may include a guide groove 161, into which the guide frame 150 is inserted to guide the sliding of the support frame 160 in the vertical direction, and the guide groove extends in the vertical direction.

[0120] The support frame 160 may include a guide surface 162 facing the guide frame 150 , and locking portions 163 and 164 disposed on opposite sides of the guide surface 162 and protruding toward each other.

[0121] The guide frame 150 may include a fixing frame coupling portion 151 and a guide portion 155 for being inserted into the guide groove 161. The guide portion 155 may include a contact surface 165a facing the guide surface 162, and locking recesses 155b and 155c formed on opposite sides of the guide portion 155 located on opposite sides of the contact surface 165a.

[0122] Locking recesses 155 b and 155 c may be formed on opposite sides of the guide portion 155 facing opposite directions so that the locking portions 163 and 164 of the support bracket 160 may be respectively inserted into the locking recesses.

[0123] As the locking portions 163 and 164 are inserted into the locking recesses 155 b and 155 c , movement of the support frame 160 along the guide portion 155 in a direction perpendicular to the vertical direction may be restricted, and the support frame 160 may slide only in the vertical direction relative to the guide portion 155 .

[0124] In this way, the support frame 160 of the storage tank fixing assembly 110 can move in the vertical direction relative to the first fixing frame 120 .

[0125] Meanwhile, the guide frame 150, the support frame 160 and the damping member 170 may be the first guide frame 150, the first support frame 160 and the first damping member 170, respectively, and correspondingly, the second guide frame, the second support frame and the second damping member may be disposed adjacent to the second guide frame to adjust the relative movement of the second support frame relative to the second fixing frame 130 in the vertical direction. In addition, even when the vehicle body frames 2a and 3a (see Fig.15 ) can also more stably support the tank fixing assembly 110 when twisted.

[0126] In addition, the present disclosure is not limited thereto, and the fixing frames 120 and 130 and the support frame 160 may not be provided as separate components, but the guide portion 155 protruding in a direction facing the support frame 160 relative to the fixing frames 120 and 130 may be integrally formed with the fixing frames 120 and 130 .

[0127] Furthermore, unlike the above structure, the protrusions of the support frame 160 and the recesses of the fixing frames 120 and 130 are coupled to each other so that the support frame 160 can move in a vertical direction (“Z” direction) relative to the fixing frames 120 and 130 .

[0128] Fig.13 1 is a schematic diagram showing vehicle body frames 2 a and 3 a and connecting frames 2 and 3 according to an embodiment of the present disclosure, viewed from the side. Fig.14 1 is a schematic diagram showing vehicle body frames 2 a and 3 a according to an embodiment of the present disclosure viewed from the top. Fig.15 and Fig.16 is a diagram showing the reservoir tank 40 according to the embodiment of the present disclosure, the position of which is changed by receiving a force from the vehicle body frames 2 a and 3 a . Fig.17 is a flow chart of a method for controlling the storage tank securing assembly 10 according to an embodiment of the present disclosure.

[0129] In the following, it is assumed Figure 2 Tank fixing assembly 10 in execution Fig.17 However, accordingly, Figure 8 The tank fixing assembly 110 can perform Fig.17 In addition, Fig.17In the description, operations described as being performed by the device may be understood to be controlled by a controller (not shown) of the tank fixing assembly.

[0130] refer to Figures 13 to 17 The vehicle body frames 2a and 3a may be frames extending horizontally from the road surface toward the forward direction (eg, in the "Y" direction). The vehicle body frames 2a and 3a may be provided with connection frames 2 and 3 extending in a direction perpendicular to the vehicle body frames 2a and 3a.

[0131] The body frames 2a and 3a may include a first body frame 2a and a second body frame 3a, and the connecting frames 2 and 3 may include a first connecting frame 2 coupled to the first body frame 2a and a second connecting frame 3 coupled to the second body frame 3a.

[0132] The first connecting frame 2 may be coupled to the first vehicle body frame 2 a through the first supporting frame 4 , and the second connecting frame 3 may be coupled to the second vehicle body frame 3 a through the second supporting frame 5 .

[0133] The first fixing frame 20 and the second fixing frame 30 may be connected to the first vehicle body frame 2 a and the second vehicle body frame 3 a , respectively, to be displaced in a vertical direction.

[0134] In the hydrogen battery vehicle, the displacement of the vehicle body frames 2a and 3a in the vertical direction from the reference line may not be relatively large.

[0135] However, if Fig.15 As shown, in the hydrogen battery vehicle, the displacement of the vehicle body frames 2a and 3a in the vertical direction from the reference line can be relatively large.

[0136] Then, displacement detection sensors 6 and 7 configured to detect displacement of the vehicle body frames 2 a and 3 a in the vertical direction may be attached to the vehicle body frames 2 a and 3 a .

[0137] In more detail, the first displacement detecting sensor 6 may be mounted to the first vehicle body frame 2a via the first sensor coupling portion 6s, and the second displacement detecting sensor 7 may be mounted to the second vehicle body frame 3a via the second sensor coupling portion 7s.

[0138] The first displacement detection sensor 6 and the second displacement detection sensor 7 may be configured to detect displacements of the first body frame 2 a and the second body frame 3 a in the vertical direction, respectively.

[0139] Furthermore, the first support frame 4 may be provided with a first acceleration detection sensor 8 configured to detect acceleration of the first body frame 2a, and the second support frame 5 may be provided with a second acceleration detection sensor 9 configured to detect acceleration of the second body frame 3a.

[0140] In more detail, the first front acceleration detection sensor 8a may be provided on the front surface of the first support frame 4, and the first rear acceleration detection sensor 8b may be provided on the rear surface of the first support frame 4. In addition, the second front acceleration detection sensor 9a may be provided on the front surface of the second support frame 5, and the second rear acceleration detection sensor 9b may be provided on the rear surface of the second support frame 5.

[0141] The acceleration detection sensors 8 and 9 may be used to determine the hydrogen battery vehicle 1 (see FIG. 1 ) by detecting the acceleration of the first body frame 2a and the second body frame 3a in the vertical direction. Figure 1 ) is a sensor that detects whether the driving condition is a harsh environment or a torsional state caused by tilt alone.

[0142] Due to this structure, the displacement of the first body frame 2a or the second body frame 3a in the vertical direction can be detected by the displacement detection sensors 6 and 7. At the same time, based on the difference between the displacements of the first body frame 2a and the second body frame 3a in the vertical direction being greater than or equal to the first preset value, the damping member 70 can be controlled by the controller so that at least one of the first support frame 60 and the second support frame is allowed to move more freely relative to the first fixed frame 20 or the second fixed frame 30 in the vertical direction.

[0143] That is, the damping member 70 can be switched between a first mode and a second mode, in which the second mode allows a greater relative displacement of the support frame 60 relative to the adjacent fixing frames 20 and 30 in the vertical direction.

[0144] That is, the damping member 70 may be controlled to switch between the first mode and the second mode. When the relative movement of the support frame 60 in the vertical direction relative to the adjacent fixed frames 20 and 30 is the same according to the displacement of the vehicle body frames 2a and 3a, the first fixed frame 20 and the second fixed frame 30, and the first support frame 60 and the second support frame may move together with the tank 40 like a rigid body, and damage to the components may become more serious due to collision between the components such as the first support frame 60, the second support frame and the tank 40.

[0145] On the other hand, in the structure according to the embodiment of the present disclosure, based on the displacement of the first fixed frame 20 or the second fixed frame 30 in the vertical direction being greater than or equal to the first preset value, the first mode (in which the displacement of the vehicle body frames 2a and 3a in the vertical direction is relatively small) can be switched to the second mode to allow the support frame 60 to have a larger relative displacement in the vertical direction relative to the adjacent fixed frames 20 and 30. Therefore, the impact between the support frame 60 and the adjacent components can be prevented in advance, so that the durability can be improved and the safety accident can be prevented.

[0146] In addition, the damping member 70 can be controlled to switch from the second mode to the first mode by recognizing that the displacement of the support frame 60 relative to the first fixed frame 20 or the second fixed frame 30 in the vertical direction becomes greater than the expected displacement of the damping member 70 in the second mode. In this way, after the relative movement of the support frame 60 in the vertical direction is controlled to a certain extent, the relative movement relative to the fixed frames 20 and 30 can be reduced again, so that the support structure of the storage tank 40 and the support frame 60 can be more stably realized.

[0147] In more detail, when the hydrogen battery vehicle starts driving, the vehicle body frames 2 a and 3 a may be displaced according to the running conditions (step S10 ).

[0148] The controller may determine whether the difference between the displacements of the first and second body frames 2a and 3a in the vertical direction is greater than or equal to a first preset value (step S20). Then, the displacements may be determined by electrical signals from the displacement detection sensors 6 and 7 disposed adjacent to the body frames 2a and 3a.

[0149] When the difference between the displacements of the first body frame 2a and the second body frame 3a in the vertical direction is less than the first preset value (No in step S20), the damper 70a is fixed in the first mode (step S40). That is, the damper 70a is not controlled alone and can be controlled to have the first damping coefficient in the first mode. Here, the first preset value may be 200 mm.

[0150] When the difference between the displacements of the first and second body frames 2a and 3a in the vertical direction is greater than or equal to the first preset value (yes in step S20), the controller may determine whether the hydrogen battery vehicle is in a “bad driving condition” (step S30).

[0151] By receiving electrical signals from the acceleration detection sensors 8 and 9 disposed adjacent to the vehicle body frames 2a and 3a, it is possible to determine whether the hydrogen battery vehicle is in a "bad driving condition." As an example, it can be determined based on electrical signals from the first front acceleration detection sensor 8a and the first rear acceleration detection sensor 8b adjacent to the first vehicle body frame 2a, and the second front acceleration detection sensor 9a and the second rear acceleration detection sensor 9b adjacent to the second vehicle body frame 3a.

[0152] When the magnitude of the acceleration detected by the first front acceleration detection sensor 8a, the first rear acceleration detection sensor 8b, the second front acceleration detection sensor 9a, or the second rear acceleration detection sensor 9b is greater than or equal to about 4.6 times the gravitational acceleration, it can be determined as a "bad driving condition" (Yes in step S30). On the other hand, when the magnitude of the detected acceleration is less than about 4.6 times the gravitational acceleration, it can be determined as a "normal driving condition" caused by a simple tilt or high-speed impact (No in step S30), and therefore the damper 70a in the first mode may not be controlled to be fixed alone.

[0153] When it is determined that the hydrogen battery vehicle is in a “bad driving condition” (YES in step S30 ), the controller may recognize that the damper 70 a needs to be controlled (step S50 ).

[0154] Thereafter, the controller may select a fixing frame located at an upper side among the first fixing frame 20 and the second fixing frame 30 (step S60 ), and may allow the supporting frame 60 to move more freely relative to the fixing frames 20 and 30 .

[0155] In other words, when it is determined that the first body frame 2a is located on the upper side of the second body frame 3a by comparing the displacement of the first body frame 2a in the upward direction with the displacement of the second body frame 3a in the upward direction (yes in step S60), the first damper 70a can be switched from the first mode to the second mode (step S70), thereby allowing the first support frame 60 to move more freely relative to the first fixed frame 20 in the vertical direction.

[0156] Then, the damping coefficient of the first damper 70a may be controlled to be a second damping coefficient that is smaller than the first damping coefficient in the first mode.

[0157] On the other hand, when the second body frame 3a is located on the upper side of the first body frame 2a (No in step S60), the second damper can be switched from the first mode to the second mode (step S80), whereby the relative movement of the second support frame with respect to the second fixed frame 30 becomes freer.

[0158] Thereafter, after the mode of the first damper 70 a or the second damper is switched from the first mode to the second mode, the controller may determine whether an excessive displacement occurs (step S90 ).

[0159] In more detail, the support frame detection sensor 66 (see Figure 4 ) can detect that the support frame 60 deviates from a specific displacement in the upward or downward direction relative to the fixing frames 20 and 30, and when the support frame detection sensor 66 detects the support frame 60, it can be identified that the support frame 60 is excessively displaced.

[0160] That is, based on the displacement of the support bracket 60 relative to the first fixing frame 20 in the vertical direction being greater than or equal to the second preset value, the first damping member 70 may be switched from the second mode to the first mode again (step S100 ).

[0161] In other words, when the excessive displacement of the support frame 60 is recognized, the controller allows the support frame 60 to be excessively free due to the first damper 70a or the second damper, so that the second mode of the first damper 70a or the second damper can be controlled to be switched to the first mode again (step S100). That is, when the second mode is switched to the first mode again, the damping coefficient of the first damper 70a or the second damper can be controlled to be larger.

[0162] On the other hand, when the supporting frame 60 is not excessively displaced (step S90 ), the controller may determine whether the first fixing frame 20 or the second fixing frame 30 is normally displaced (step S110 ).

[0163] Based on the fact that the vertical displacement of the support frame 60 relative to the first fixed frame 20 is less than the second preset value (No in step S90 ), it can be determined whether the vertical displacement of the first fixed frame 20 or the second fixed frame 30 is within the normal displacement (step S110 ).

[0164] When the displacement of the first fixing frame 20 or the second fixing frame 30 in the vertical direction is not a normal displacement (No in step S110 ), the controller may recognize a need to control the damper 70 a again (step S50 ).

[0165] As an example, when the displacement of the first fixed frame 20 or the second fixed frame 30 in the vertical direction is less than the third preset value, that is, the displacement of the first fixed frame 20 or the second fixed frame 30 in the vertical direction is a normal displacement (yes in step S110), the controller can control the first damper 70a or the second damper so that the second mode of the first damper 70a or the second damper is switched to the first mode (step S100).

[0166] Meanwhile, the controller may include at least one processor, a memory, a user interface input device, a user interface output device, a storage, and a network interface.

[0167] The processor may be a central processing unit (CPU) or a semiconductor device that processes instructions stored in a memory and / or storage device. The memory and storage device may include various types of volatile or non-volatile storage media. For example, the memory may include a read-only memory (ROM) and a random access memory (RAM).

[0168] Therefore, the operation of the method or algorithm described in conjunction with the embodiments disclosed herein can be directly implemented as hardware, software modules, or a combination of the two, which are executed by a processor. The software module can be located in a storage medium (i.e., memory and / or storage device), such as RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, detachable disk, or CD-ROM.

[0169] An exemplary storage medium may be coupled to a processor, and the processor may read information from the storage medium and write information to the storage medium. Alternatively, the storage medium may be integrated with the processor. The processor and the storage medium may be located in an application specific integrated circuit (ASIC). The ASIC may be located in a user terminal. Alternatively, the processor and the storage medium may be located in a user terminal as separate components.

[0170] This technology can adjust the degree of freedom of the tank's fixing frame according to the situation, thereby reducing the load on the fixing frame. Therefore, the tank can be supported more stably even when driving.

[0171] In addition, because the tank can be supported more stably, the technology can prevent safety accidents.

[0172] Furthermore, various effects directly or indirectly identified may be provided through this document.

[0173] The above description is a simple exemplary description of the technical spirit of the present disclosure, and a person skilled in the art to which the present disclosure belongs may make various corrections and modifications without departing from the essential features of the present disclosure.

[0174] Therefore, the embodiments disclosed in the present disclosure are not intended to limit the technical spirit of the present disclosure, but to describe these technical spirits, and the scope of the technical spirit of the present disclosure is not limited to these embodiments. The protection scope of the present disclosure should be interpreted by the attached claims, and all technical spirits within the equivalent scope should be interpreted as included in the scope of the present disclosure.

[0175] List of reference numerals:

[0176] 1: Hydrogen battery vehicle

[0177] 2: First connection frame

[0178] 2a: First body frame

[0179] 3: Second connection frame

[0180] 3a: Second vehicle frame

[0181] 4: First support frame

[0182] 5: Second support frame

[0183] 6: First displacement detection sensor

[0184] 7: Second displacement detection sensor

[0185] 8: First acceleration detection sensor

[0186] 9: Second acceleration detection sensor

[0187] 10, 110: Tank fixing components

[0188] 20, 120: First fixed frame

[0189] 21, 121: Fixed surface

[0190] 30, 130: Second fixed frame

[0191] 40, 140: Storage tank

[0192] 41, 141: Main body

[0193] 42: Nozzle

[0194] 50, 150: Guide frame

[0195] 51: Chute

[0196] 52: Groove surface

[0197] 53, 54: snap-fitting part

[0198] 60, 160: Support frame

[0199] 61: Nozzle connection

[0200] 65: Sliding part

[0201] 65a: Sliding surface

[0202] 70, 170: Damping components

[0203] 70a: Damper

[0204] 70b: Coil spring

[0205] 80, 180: Support frame

[0206] 85: Torsion bar

[0207] 145a: belt

[0208] 145b: With stand

[0209] 151: Fixed frame connection

[0210] 155: Guidance Department

[0211] 155b, 155c: Locking recess

[0212] 161: Boot slot

[0213] 162: Guide Surface

[0214] 163, 164: Locking part

[0215] 190: Bell rocker

[0216] 191: Putter

Claims

1. A tank fixing assembly, comprising: a fixed frame connected to the vehicle body frame and extending in one direction; a support frame configured to support the storage tank so that the storage tank slides along the one direction relative to the fixed frame; as well as The damping member is configured to adjust the relative movement of the support frame relative to the fixing frame along the one direction.

2. The tank fixing assembly according to claim 1, wherein: The damping member is configured to allow the support frame to move more freely relative to the fixing frame in the one direction based on a displacement of the vehicle body frame in the one direction being greater than or equal to a preset value.

3. The tank fixing assembly according to claim 1, wherein: The damping member comprises: a damper disposed between one end connected to the fixed frame and an opposite end connected to the support frame; and A coil spring extends around the damper.

4. The storage tank fixing assembly according to claim 2, further comprising: The displacement detection sensor is configured to detect the displacement of the vehicle body frame along the one direction.

5. The tank fixing assembly according to claim 3, wherein: The damping member has a first mode and a second mode, in which a relative displacement of the support frame relative to the fixed frame along the one direction is allowed to be greater than a relative displacement of the support frame relative to the fixed frame along the one direction in the first mode, wherein the damping member is controlled to switch from the first mode to the second mode based on a displacement of the vehicle body frame along the one direction being greater than or equal to a first preset value, wherein the damping member is controlled to switch from the second mode to the first mode based on a displacement of the support frame relative to the fixing frame in the one direction or in a direction opposite to the one direction caused by the damping member being greater than a second preset value, and Wherein, the damping coefficient of the damper in the second mode is smaller than the damping coefficient of the damper in the first mode.

6. The tank fixing assembly according to claim 1, wherein: The fixed frame includes a first fixed frame and a second fixed frame, the first fixed frame is configured to support one side of the storage tank, the second fixed frame extends parallel to the first fixed frame and is configured to support the opposite side of the storage tank, The body frame includes a first body frame and a second body frame. The support frame includes a first support frame and a second support frame, the first support frame is configured to support the one side of the storage tank, the second support frame is configured to support the opposite side of the storage tank, and Wherein, the damping component includes a first damping component and a second damping component, the first damping component is configured to adjust the relative movement of the first support frame relative to the first fixed frame along the one direction, and the second damping component is configured to adjust the relative movement of the second support frame relative to the second fixed frame along the one direction.

7. The storage tank fixing assembly according to claim 6, further comprising: A controller is configured to control at least one of the first damping member and the second damping member based on that a difference between a displacement of the first body frame in the one direction and a displacement of the second body frame in the one direction is greater than or equal to a preset value.

8. The tank fixing assembly according to claim 7, wherein: The one direction is an upward direction, and The controller controls the first damping member based on the displacement of the first body frame in the upward direction being greater than the displacement of the second body frame in the upward direction, so as to allow the first support frame to move more freely relative to the first fixed frame in the vertical direction.

9. The storage tank fixing assembly according to claim 1, further comprising: The guide frame is fixed to the fixing frame and is configured to guide the sliding of the supporting frame along the one direction.

10. The tank fixing assembly according to claim 9, wherein: The guide frame includes a slide groove, the support frame is inserted into the slide groove, the slide groove guides the support frame to slide along the one direction, and the slide groove extends along the one direction.

11. The tank fixing assembly according to claim 10, wherein: The support frame includes a sliding portion inserted into the sliding groove, and Wherein, the guide frame includes a clamping portion, and the clamping portion is inserted into a clamping recess formed on the opposite surface of the sliding portion.

12. The storage tank fixing assembly according to claim 1, further comprising: a supporting frame coupled to the fixed frame; as well as A torsion bar is coupled to the support bracket and the support frame.

13. The storage tank fixing assembly according to claim 1, further comprising: a supporting frame coupled to the fixed frame; a bell-shaped rocker arm connected to the fixed frame; A push rod connecting the bell-shaped rocker arm and the support frame; as well as a guide frame fixed to the fixed frame and configured to guide the sliding of the support frame along the one direction, Wherein, the damping member includes one end coupled to the bell rocker arm and an opposite end fixed to the support frame.

14. The tank fixing assembly according to claim 13, wherein: The support frame includes a guide groove into which the guide frame is inserted, the guide groove guides the sliding of the support frame along the one direction, and the guide groove extends along the one direction.

15. The tank fixing assembly according to claim 14, wherein: The guide frame includes a guide portion inserted into the guide groove, and Wherein, the support frame includes a locking portion, and the locking portion is inserted into a locking recess formed on an opposite surface of the guide portion.

16. The tank fixing assembly according to claim 13, wherein: The support frame is coupled to a belt bracket having a belt that surrounds a main body of the tank.

17. A method for controlling a tank fixing assembly, the tank fixing assembly comprising: A first body frame and a second body frame disposed in a vehicle interior; a storage tank; a first fixed frame and a second fixed frame, connected to the first body frame and the second body frame, respectively, and extending in a vertical direction; a first support frame and a second support frame, the first support frame being configured to support one side of the storage tank, the second support frame being configured to support an opposite side of the storage tank; and a first damper and a second damper, the first damper being configured to adjust movement of the first support frame along the vertical direction, the second damper being configured to adjust movement of the second support frame along the vertical direction, the method comprising: detecting a displacement of the first vehicle body frame or the second vehicle body frame; determining a difference between displacements of the first body frame and the second body frame along the vertical direction; determining whether the vehicle is in a severe driving condition based on the difference between the displacements; confirming whether the displacement of the first body frame in the upward direction is greater than the displacement of the second body frame in the upward direction based on the difference between the displacements being greater than or equal to a first preset value; and Based on the displacement of the first vehicle body frame being greater than or equal to the displacement of the second vehicle body frame, control is performed to switch the first damper from a first mode to a second mode in which the first support frame is allowed to move more freely relative to the first fixed frame in the vertical direction.

18. The method according to claim 17, in, The method further includes: switching the first damper from the second mode to the first mode based on that a displacement of the first support bracket relative to the first fixing frame along the vertical direction is greater than or equal to a second preset value.

19. The method according to claim 18, further comprising: Based on the fact that the displacement of the first support frame along the vertical direction is less than the second preset value, it is confirmed whether the displacement of the first fixing frame along the vertical direction is within a normal range.

20. The method according to claim 19, wherein: Confirming whether the displacement of the first fixing frame along the vertical direction is within a normal range includes: It is confirmed whether the displacement of the first fixing frame along the vertical direction is less than a third preset value.

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