Posture adjustment device, system and method and vehicle

Abstract

The application relates to a posture adjusting device, system and method and a vehicle. The posture adjusting device comprises a water tank arranged in a preset area of a trunk of the vehicle, a separation component arranged in the water tank, and the separation component separates an inner cavity of the water tank into a first accommodating space and a second accommodating space; a water supply and drainage component connected with the water tank and used for supplying water to the first accommodating space and / or the second accommodating space and draining water in the first accommodating space and / or the second accommodating space. By adjusting the water amount in the first accommodating space and the second accommodating space, the load distribution of the vehicle is changed, and then the posture of the vehicle is adjusted, the problem that the center of gravity of the vehicle is changed and the posture of the vehicle is difficult to reach an ideal state due to factors such as the position and weight of the passengers on the vehicle, and the weight and position of the articles on the vehicle are uncertain is solved, and the driving safety, comfort and control stability of the vehicle during the sailing process in the water are improved.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and in particular to an attitude adjustment device, system and method, and a vehicle. Background Technology

[0002] Currently, the attitude of vehicles capable of deep wading and floating in water directly affects driving safety, comfort, and handling stability during navigation.

[0003] The position and weight of passengers, as well as the weight and position of onboard items, are all uncertain, which can easily cause changes in the vehicle's center of gravity and make it difficult for the vehicle to achieve an ideal posture. Therefore, a device that can adjust the vehicle's posture is needed. Summary of the Invention

[0004] Based on this, an attitude adjustment device, system, method, and vehicle are provided to achieve attitude adjustment of the vehicle.

[0005] The present invention provides a posture adjustment device, comprising: a water tank disposed in a preset area of ​​the trunk of a vehicle, the water tank having a partition component that divides the inner cavity of the water tank into a first accommodating space and a second accommodating space, the first accommodating space and the second accommodating space being arranged along the width direction of the vehicle; and a water supply and drainage component connected to the water tank for supplying water to the first accommodating space and / or the second accommodating space, and for draining water from the first accommodating space and / or the second accommodating space.

[0006] According to one embodiment of the present invention, the water supply and drainage assembly includes: a water pump; a reversing valve having a first valve port, a second valve port, and a third valve port, the first valve port being connected to the outlet of the water pump, the second valve port being connected to a first accommodating space, and the third valve port being connected to a second accommodating space, the reversing valve being adapted to switch the communication states between the second valve port and the third valve port and the first valve port; and an inlet pipe being connected to the inlet of the water pump.

[0007] According to one embodiment of the present invention, the end of the water inlet pipe opposite to the water pump is arranged in the engine compartment of the vehicle.

[0008] According to one embodiment of the present invention, the water pump is used to drive water from the outside into the water tank and to drive water in the water tank to the outside; or, the water pump is used to drive water from the outside into the water tank, and the water supply and drainage assembly further includes a first drain pipe, a first drain valve, a second drain pipe and a second drain valve, the first drain pipe being in communication with the first receiving space, the first drain valve being connected to the first drain pipe and being used to control the opening and closing of the first drain pipe, the second drain pipe being in communication with the second receiving space, the second drain valve being connected to the second drain pipe and being used to control the opening and closing of the second drain pipe.

[0009] According to one embodiment of the present invention, the preset area of ​​the vehicle trunk includes the spare tire compartment area or the area below the trunk floor.

[0010] According to one embodiment of the present invention, the partition assembly includes: a partition plate that slides in cooperation with the inner wall of the water tank; and an adjusting member for driving the partition plate to slide along the inner wall of the water tank to adjust the size of the first accommodating space and the second accommodating space.

[0011] The present invention also provides an attitude adjustment system, comprising: the attitude adjustment device of the above embodiment; a sensing component, including an inertial measurement unit, a water level sensor, and a water source detection sensor, wherein the inertial measurement unit is used to collect the vehicle's pitch angle and roll angle, the water level sensor is disposed in the water tank of the vehicle's attitude adjustment device and is used to collect the water volume parameters in the water tank, and the water source detection sensor is used to detect the inlet water source status of the water supply and drainage component; and a control module, wherein the control module includes an electronic control unit, the electronic control unit being connected to the inertial measurement unit, the water level sensor, the water source detection sensor, and the water supply and drainage component respectively, and is used to receive the parameters collected by the inertial measurement unit, the water level sensor, and the water source detection sensor and control the conveying action of the water supply and drainage component.

[0012] According to one embodiment of the present invention, the separation component of the attitude adjustment device includes a separation plate and an adjustment member, the electronic control unit is connected to the adjustment member, and the electronic control unit is also used to receive parameters collected by the sensing component and control the movement of the adjustment member.

[0013] According to one embodiment of the present invention, the control module further includes a human-machine interface, which is connected to the electronic control unit and is used to display system operating status information.

[0014] According to one embodiment of the present invention, the system operating status information includes the water volume in the water tank, the current tilt angle of the vehicle, and the operating status of the water supply and drainage components.

[0015] The present invention also provides an attitude adjustment method, applied to the attitude adjustment system of the above embodiments, comprising the following steps: acquiring the vehicle pitch angle, the vehicle roll angle, the water volume parameters in the water tank, and the inlet water source status of the water supply and drainage component; and controlling the conveying action of the water supply and drainage component based on the vehicle pitch angle, the vehicle roll angle, the water volume parameters in the water tank, and the inlet water source status of the water supply and drainage component.

[0016] According to one embodiment of the present invention, controlling the conveying action of the water supply and drainage component based on the vehicle pitch angle, the vehicle roll angle, the water volume parameters in the water tank, and the inlet water source status of the water supply and drainage component includes: comparing the vehicle pitch angle with preset submerged thresholds and raised thresholds, and comparing the inlet water source status of the water supply and drainage component with preset water source determination conditions; when it is determined that the vehicle pitch angle meets the submerged threshold and there is external water supply at the inlet of the water supply and drainage component, determining the target water supply volume in combination with the water volume parameters in the water tank, and controlling the water supply and drainage component to deliver water corresponding to the target water supply volume to the water tank; when it is determined that the vehicle pitch angle meets the raised threshold and there is external water supply at the inlet of the water supply and drainage component, determining the target drainage volume in combination with the water volume parameters in the water tank, and controlling the water supply and drainage component to discharge water corresponding to the target drainage volume from the water tank.

[0017] According to one embodiment of the present invention, the water volume parameters include water volume parameters of a first containment space and water volume parameters of a second containment space; determining the target water supply volume by combining the water volume parameters in the water tank and controlling the water supply and drainage assembly to deliver water corresponding to the target water supply volume to the water tank includes: determining a first target water supply volume corresponding to the first containment space and a second target water supply volume corresponding to the second containment space based on the vehicle tilt angle, the water volume parameters of the first containment space and the second containment space, and controlling the water supply and drainage assembly to deliver water corresponding to the first target water supply volume to the first containment space and water corresponding to the second target water supply volume to the second containment space; determining the target drainage volume by combining the water volume parameters in the water tank and controlling the water supply and drainage assembly to discharge water corresponding to the target drainage volume from the water tank: determining a first target drainage volume corresponding to the first containment space and a second target drainage volume corresponding to the second containment space based on the vehicle tilt angle, the water volume parameters of the first containment space and the second containment space, and controlling the water supply and drainage assembly to discharge water corresponding to the first target water supply volume of the first containment space and water corresponding to the second target water supply volume of the second containment space.

[0018] According to one embodiment of the present invention, when the separation assembly of the attitude adjustment device includes a separation plate and an adjustment member, it further includes: controlling the adjustment action of the adjustment member based on the vehicle roll angle and the inlet water source status of the water supply and drainage assembly.

[0019] According to one embodiment of the present invention, controlling the adjustment action of the adjusting member based on the vehicle roll angle and the inlet water source status of the water supply and drainage component includes: comparing the vehicle roll angle with a preset range of tilt angle, and comparing the inlet water source status of the water supply and drainage component with a preset water source determination condition; determining that the vehicle roll angle exceeds the preset range, and that there is no external water supply to the inlet of the water supply and drainage component, determining the target adjustment direction of the separating component based on the vehicle roll angle, and controlling the adjusting member to drive the separating component to slide in the target adjustment direction until the vehicle roll angle conforms to the preset range.

[0020] The present invention also provides a vehicle, including: the attitude adjustment device of the above embodiment; or, the attitude adjustment system of the above embodiment.

[0021] The aforementioned attitude adjustment device, system, method, and vehicle, in which the partition component inside the water tank divides the inner cavity of the water tank into a first accommodating space and a second accommodating space arranged along the vehicle width direction, and in conjunction with the water supply and drainage component to supply water to the first accommodating space and / or the second accommodating space and to drain water from the first accommodating space and / or the second accommodating space, can change the load distribution of the vehicle by adjusting the amount of water in the first accommodating space and the second accommodating space, thereby achieving the adjustment of the vehicle's attitude. This solves the problem that existing deep-wading and floating vehicles are prone to changes in the vehicle's center of gravity and attitude due to uncertainties in the position and weight of passengers and the weight and position of onboard goods, which helps to improve the driving safety, comfort, and handling stability of the vehicle during water navigation. In addition, by setting the water tank in a preset area of ​​the vehicle's trunk, the idle space of the vehicle's trunk can be fully utilized, avoiding the occupation of the layout space of the vehicle's engine compartment and chassis, effectively adapting to the limited layout space requirements of passenger vehicles. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of an attitude adjustment device according to an embodiment of this application.

[0023] Figure 2 This is a schematic diagram of the posture adjustment device according to another embodiment of this application.

[0024] Figure 3 This is a schematic diagram of the structure of an attitude adjustment system according to another embodiment of this application.

[0025] Figure 4 This is a flowchart of an attitude adjustment method according to another embodiment of this application.

[0026] Figure label:

[0027] 100. Water tank; 110. Dividing assembly; 111. Dividing plate; 112. Adjusting component; 120. First receiving space; 130. Second receiving space;

[0028] 200. Water supply and drainage components; 210. Water pump; 220. Reversing valve; 230. Inlet pipe; 240. First drain pipe; 250. First drain valve; 260. Second drain pipe; 270. Second drain valve;

[0029] 300. Sensing component; 310. Inertial measurement unit; 320. Water level sensor; 330. Water source detection sensor;

[0030] 400. Control module; 410. Electronic control unit; 420. Human-machine interface. Detailed Implementation

[0031] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0032] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0033] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0034] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0035] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0036] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0037] Combination Figure 1 One embodiment of this application provides a posture adjustment system including a water tank 100 and a water supply and drainage assembly 200. The water tank 100 is disposed in a preset area of ​​the vehicle's trunk. A partition assembly 110 is provided inside the water tank 100, dividing the inner cavity of the water tank 100 into a first receiving space 120 and a second receiving space 130. The first receiving space 120 and the second receiving space 130 are arranged along the vehicle width direction. The water supply and drainage assembly 200 is connected to the water tank 100 and is used to supply water to the first receiving space 120 and / or the second receiving space 130, and to drain water from the first receiving space 120 and / or the second receiving space 130.

[0038] In some embodiments, the water tank 100 is located in an unused area of ​​the vehicle's trunk, a location within the trunk that does not occupy core functional space. Choosing this location for the water tank 100 fully utilizes the unused space in the trunk, without requiring additional space in the engine compartment or chassis. This effectively adapts to the limited space requirements of passenger vehicles and avoids interference with the original core component layout caused by adding attitude adjustment components. The water tank 100 can be made of lightweight, corrosion-resistant materials with structural strength, such as polypropylene, polyamide, or ABS engineering plastics. It can withstand the pressure from vibrations during water supply and drainage, as well as during vehicle operation, preventing damage and leakage. Simultaneously, its light weight avoids excessively increasing the overall weight of the vehicle, thus preventing adverse effects on driving performance. Furthermore, its good corrosion resistance allows it to adapt to the operating environment of underwater navigation, extending the service life of the water tank 100.

[0039] The partition assembly 110 divides the inner cavity of the water tank 100 into a first receiving space 120 and a second receiving space 130 along the vehicle width direction. The cooperation between the partition assembly 110 and the inner wall of the water tank 100 enables the two receiving spaces to achieve independent water volume adjustment, providing a structural basis for adjusting the vehicle's tilt attitude by adjusting the water volume of the two spaces.

[0040] The water supply and drainage assembly 200 is a structure for supplying and draining water from the water tank 100. It can selectively supply water to the first receiving space 120 and / or the second receiving space 130, and can also selectively drain water from the first receiving space 120 and / or the second receiving space 130. Exemplarily, the water supply and drainage assembly 200 includes a power component, a delivery pipeline, and a path switching component. The power component provides power for the water supply and drainage process, ensuring efficient water flow between the outside environment and the water tank 100, and providing power for rapid response to attitude adjustment. The delivery pipeline, as a water flow channel, is arranged to fit within the vehicle's interior, with one end establishing a stable connection to an external water source. This arrangement not only facilitates water source access but also utilizes the vehicle's structure to protect critical parts of the pipeline, reducing the risk of blockage or damage. The path switching component is connected to the power component, the delivery pipeline and the water tank 100. It can change the water delivery path according to the attitude adjustment requirements, so that the water can flow to the first receiving space 120 alone, to the second receiving space 130 alone, or to both receiving spaces at the same time. It can also switch between different states of drainage from a single receiving space and drainage from both receiving spaces at the same time. Through this path switching, the water volume of the two receiving spaces can be precisely controlled to meet the water volume adjustment requirements under different attitude adjustment scenarios.

[0041] When a vehicle is navigating in water or stationary, attitude adjustment is required. If the vehicle is submerged (i.e., the front end is noticeably sunken), the water supply and drainage assembly 200 simultaneously supplies water to the first and second receiving spaces 120 and 130. After the power component of the water supply and drainage assembly 200 is activated, external water is supplied to the first and second receiving spaces 120 and 130. As the water enters the two spaces, the rear axle load increases with the water volume, thus suppressing the tendency for the front end to sink. If the vehicle is tilted to one side, the water supply and drainage assembly 200 adjusts the first and second receiving spaces 120 and 130. The water volume in the second containment space 130 can be adjusted by supplying water only to the containment space corresponding to the tilted side or by discharging water only from the containment space on the opposite tilted side. The difference in water volume between the two containment spaces changes the load distribution on the left and right sides of the vehicle, allowing the vehicle to return to a level state. If the vehicle is tilted up, i.e. the rear end is significantly sloping, the water supply and drainage component 200 discharges water from the first containment space 120 and the second containment space 130. The power component operates in the opposite direction, and the water in the two containment spaces is discharged to the outside through the delivery pipeline and the power component. As the water volume decreases, the load on the rear axle of the vehicle decreases, thereby alleviating the tendency of the rear end to slop.

[0042] The attitude adjustment device in this embodiment achieves effective vehicle attitude adjustment through the reasonable setting of the position and structure of the water tank 100 and the coordination of the various components of the water supply and drainage assembly 200. It not only makes full use of the vehicle's idle space and avoids interference with the layout of the core area, but also provides more precise water volume adjustment, enabling rapid response to different attitude adjustment needs. It effectively solves the problem that existing deep-wading and floating vehicles cannot achieve an ideal attitude, significantly improving driving safety, comfort, and handling stability during water navigation. Furthermore, the device has a relatively simple structure, facilitating manufacturing and subsequent installation and maintenance.

[0043] According to one embodiment of the present invention, the water supply and drainage assembly 200 includes a water pump 210, a reversing valve 220, and an inlet pipe 230. The reversing valve 220 has a first valve port, a second valve port, and a third valve port. The first valve port is connected to the outlet of the water pump 210, the second valve port is connected to a first receiving space 120, and the third valve port is connected to a second receiving space 130. The reversing valve 220 is adapted to switch the connection state between the second and third valve ports and the first valve port. The inlet pipe 230 is connected to the inlet of the water pump 210.

[0044] In some embodiments, the water pump 210 in the water supply and drainage assembly 200 is fixed to the outer wall of the water tank 100 and directly and sealed to the fluid interface reserved in the water tank 100. This installation method can shorten the pipeline length between the water pump 210 and the water tank 100, reduce the friction resistance of water flow in the pipeline, improve the efficiency of water supply and drainage, and at the same time reduce the number of pipeline connection nodes and reduce the risk of water leakage.

[0045] The reversing valve 220 is an electromagnetic three-position three-way reversing valve. Its first valve port is connected to the outlet of the water pump 210 through a high-pressure sealed pipeline. The second valve port is connected to the inside of the first receiving space 120 through a water pipe that passes through the side wall of the water tank 100. Similarly, the third valve port is connected to the inside of the second receiving space 130 through a water pipe that passes through the side wall of the water tank 100. When water needs to be supplied to the first receiving space 120, the valve core moves to connect the first valve port with the second valve port, and the third valve port is closed. When water needs to be supplied to the second receiving space 130, the valve core moves to connect the first valve port with the third valve port, and the second valve port is closed. When water needs to be supplied to both receiving spaces at the same time, the valve core is in the middle position, and the first valve port is connected to both the second and third valve ports at the same time, ensuring that the water flow can be accurately distributed to the target receiving space.

[0046] The water inlet pipe 230 can be made of aging-resistant rubber tubing. One end of the tubing is connected to the water inlet of the water pump 210 via a threaded sealing joint, and the other end extends to a location on the vehicle where it can access an external water source, such as the bottom of the trunk, the floor of the passenger compartment, or the engine compartment.

[0047] The short-pipe installation of water pump 210 can improve water supply and drainage efficiency, ensuring that water can be quickly replenished or discharged when the vehicle's posture changes suddenly. For example, when the vehicle suddenly tilts its head down, water pump 210 can quickly supply water to water tank 100 to increase the rear axle load. The precise switching of the electromagnetic three-position three-way reversing valve can avoid water flow mismatch and prevent the posture adjustment from being reversed due to incorrect water supply direction. For example, if water is supplied to the left side of the accommodation space when the left tilt needs to be adjusted, it will aggravate the tilt problem. The aging-resistant water inlet pipe 230 and its reasonable layout can extend the service life of water inlet pipe 230, avoid water supply interruption due to pipe damage, and ensure long-term reliable operation of the system.

[0048] The components of the water supply and drainage assembly 200 work together to achieve precise and rapid delivery to the two storage spaces, providing stable power support for vehicle posture adjustment. It also has a compact structure, occupies little space, and is suitable for the space requirements of passenger cars.

[0049] According to one embodiment of the present invention, the end of the water inlet pipe 230 away from the water pump 210 is arranged in the engine compartment of the vehicle.

[0050] In some embodiments, the end of the water inlet pipe 230 away from the water pump 210 extends into the engine compartment and is positioned near the front grille of the vehicle. This position allows for quick access to external water sources when the vehicle is wading through water, ensuring timely water supply. At the same time, the arrangement of the water inlet pipe 230 in the engine compartment avoids high-temperature components such as the exhaust pipe and turbocharger, preventing the water inlet pipe 230 from aging and cracking due to long-term heat exposure. It also prevents the water inside the pipe from generating air bubbles due to heat, which would cause the water pump 210 to run dry and affect the water supply efficiency.

[0051] Optionally, an inlet connector with a filter screen is installed at the end of the inlet pipe 230 away from the water pump 210. The size of the filter screen can block impurities such as mud, sand and aquatic plants in the water from entering the inlet pipe 230, preventing impurities from entering the water pump 210 or the reversing valve 220 with the water flow, preventing the impeller of the water pump 210 from getting stuck and the valve core of the reversing valve 220 from getting clogged, thereby reducing the probability of failure of the water supply and drainage components 200 and reducing the later maintenance costs.

[0052] Optionally, the water inlet pipe 230 is arranged along the cooling system piping inside the engine compartment. The cooling system piping can provide some heat dissipation for the water inlet pipe 230, preventing the high temperature environment inside the engine compartment from causing the water inlet pipe 230 to age faster. At the same time, it prevents the water in the water inlet pipe 230 from generating air bubbles due to heat. Air bubbles would disrupt the normal water intake state of the water pump 210, leading to unstable water supply pressure and affecting the accuracy of attitude adjustment.

[0053] Optionally, the water inlet pipe 230 is fixed to the wiring harness bracket or pipe clip in the engine compartment using a cable tie or other fixing structure. The cable tie has moderate fixing force, which can prevent the water inlet pipe 230 from colliding and rubbing against other components due to vibration during vehicle operation, thus avoiding wear and tear on the outer wall of the pipe, while also preventing the water inlet pipe 230 from deforming due to excessive tightening, which would affect the flow of water.

[0054] The arrangement of the water inlet pipe 230 in this embodiment can improve the reliability and stability of the water supply and drainage components 200, and provide a continuous water supply for vehicle attitude adjustment.

[0055] In some embodiments, the water pump 210 is used to drive water from the outside into the water tank 100 and to drive water in the water tank 100 to the outside. When the water pump 210 is used to drive water bidirectional flow, it can be a bidirectional metering water pump with a bidirectional rotating impeller and a sealed working chamber inside. When the impeller rotates forward, external water is drawn into the water pump 210 through the inlet pipe 230 under the action of the impeller's centrifugal force, and then delivered to the receiving space of the water tank 100 through the reversing valve 220 to achieve water supply; when the impeller rotates in reverse, water in the receiving space of the water tank 100 is drawn into the water pump 210 under the action of the impeller, and then discharged to the outside through the inlet pipe 230 to achieve drainage. The rotation speed of the water pump 210 can be adjusted according to the posture adjustment requirements. For example, when the vehicle is severely submerged, the water pump 210 is controlled to rotate at high speed in the forward direction to quickly supply water to the water tank 100; when the vehicle is slightly submerged, the water pump 210 is controlled to rotate at low speed in the forward direction to slowly increase the water volume and avoid over-adjustment.

[0056] The bidirectional quantitative water pump can integrate water supply and drainage functions, eliminating the need for additional drainage pumps and drainage pipelines, simplifying the system structure, reducing the number of components and installation space, while the quantitative control characteristics can accurately control the water supply and drainage volume, avoiding excessive or insufficient water adjustment.

[0057] Combination Figure 2 In other embodiments, the water pump 210 is used to drive water to be injected into the water tank 100 from the outside. The water supply and drainage assembly 200 also includes a first drain pipe 240, a first drain valve 250, a second drain pipe 260 and a second drain valve 270. The first drain pipe 240 is connected to the first receiving space 120. The first drain valve 250 is connected to the first drain pipe 240 and is used to control the opening and closing of the first drain pipe 240. The second drain pipe 260 is connected to the second receiving space 130. The second drain valve 270 is connected to the second drain pipe 260 and is used to control the opening and closing of the second drain pipe 260.

[0058] When the water pump 210 is only used for water supply, one end of the first drain pipe 240 of the water supply and drainage assembly 200 is connected to the bottom of the first receiving space 120. The bottom connection ensures that the water in the first receiving space 120 can be completely drained, preventing residual water from remaining in the receiving space for a long time, which could lead to corrosion of the inner wall of the water tank 100 or the growth of bacteria. The first drain valve 250 is an electromagnetic shut-off valve, installed in the middle of the first drain pipe 240. When the electromagnetic shut-off valve is open, the water is discharged along the first drain pipe 240 under its own weight and the vibration of the vehicle. When the electromagnetic shut-off valve is closed, it blocks the drainage path. The structure and installation method of the second drain pipe 260 and the second drain valve 270 can be the same as those of the first drain pipe 240 and the first drain valve 250. One end of the second drain pipe 260 is connected to the bottom of the second receiving space 130, and the second drain valve 270 controls the opening and closing of the second drain pipe 260.

[0059] The one-way water pump 210, combined with the electromagnetic drain valve, has a relatively simple structure and low manufacturing cost. It is suitable for scenarios where the requirements for water supply and drainage speed are not high. The drain pipe connected at the bottom can completely drain the water, protecting the internal environment of the water tank 100. The electromagnetic shut-off valve has a fast response speed and can control the drainage process in a timely manner, ensuring timely attitude adjustment.

[0060] The two water supply and drainage structures mentioned above can be flexibly selected according to the cost, space and performance requirements of different vehicle models. Both can meet the water delivery requirements for posture adjustment and improve the adaptability and practicality of the system.

[0061] According to one embodiment of the present invention, the preset area of ​​the vehicle trunk includes the spare tire compartment area or the area under the trunk floor.

[0062] In some embodiments, the spare tire slot area in the trunk specifically refers to the recessed space formed after the spare tire is removed and the unused area around the recess that is not used to fix the spare tire. When the water tank 100 is installed in this area, it can be fixed with a special bracket. The bracket is made of high-strength plastic material and its shape matches the contour of the inner wall of the spare tire slot. A rubber buffer pad is laid between the bracket and the water tank 100. The buffer pad can absorb the vibration generated during vehicle operation, reduce the friction and collision between the water tank 100 and the bracket, avoid wear or cracking of the outer wall of the water tank 100, and prevent the water tank 100 from loosening and leaking due to vibration. The area under the trunk floor refers to the enclosed or semi-enclosed cavity between the trunk storage floor and the vehicle frame. When installing the water tank 100 in this area, an access panel needs to be made in the trunk floor. The size of the access panel is determined according to the maintenance needs of the water tank 100, ensuring that maintenance personnel can access the connection between the water tank 100 and the water supply and drainage components 200 through the access panel, facilitating later inspection, maintenance, or replacement of parts. The access panel is equipped with a removable sealing cover, and a rubber sealing ring is set between the sealing cover and the floor. The sealing ring can fill the gap between the cover and the floor to prevent external dust and moisture from entering the area under the floor, and to avoid malfunctions of the outer wall of the water tank 100 or the water supply and drainage pipes due to dust accumulation and moisture corrosion.

[0063] Installing the water tank 100 in the spare tire compartment area makes full use of existing unused space without occupying the main storage area of ​​the trunk. Users can still use the trunk to store items normally. At the same time, the dedicated bracket and buffer pads ensure that the water tank 100 is fixed and stable, reducing the risk of vibration damage. The access panel under the floor reduces the difficulty of later maintenance, allowing maintenance without removing the trunk floor, saving maintenance time and costs. The sealed cover protects the water tank 100 and related components from the external environment, extending the system's service life.

[0064] The water tank 100 is located in the spare tire compartment area of ​​the trunk or under the trunk floor, which provides a stable installation environment for the water tank 100 and avoids affecting the original functions of the vehicle, thus balancing practicality and ease of maintenance.

[0065] According to one embodiment of the present invention, the partition assembly 110 includes a partition plate 111 and an adjusting member 112. The partition plate 111 is slidably engaged with the inner wall of the water tank 100; the adjusting member 112 is used to drive the partition plate 111 to slide along the inner wall of the water tank 100 to adjust the size of the first accommodating space 120 and the second accommodating space 130.

[0066] In some embodiments, the partition plate 111 of the partition assembly 110 is a flat plate that matches the shape of the inner cavity of the water tank 100. The material is consistent with the water tank 100, such as polypropylene, to ensure that the expansion coefficients of the partition plate 111 and the water tank 100 are similar, preventing gaps from forming due to temperature changes. The edges of the partition plate 111 are wrapped with elastic sealing rubber strips. The rubber strips have a U-shaped cross-section and fit tightly against the inner wall, top wall, and bottom wall of the water tank 100, forming an all-around seal to prevent water from seeping into the first and second accommodating spaces 120 and 130. This ensures that the water volume in the two spaces can be independently adjusted, providing a precise water volume basis for tilt adjustment. Slider blocks extending along the height direction of the water tank 100 are provided on both sides of the partition plate 111. Guide grooves matching the sliders are opened at corresponding positions on the inner wall of the water tank 100. The sliders can slide smoothly along the guide grooves. The length of the guide grooves is adapted to the width of the water tank 100, limiting the sliding range of the partition plate 111 and preventing excessive sliding of the partition plate 111 that could damage the end of the water tank 100. The adjusting component 112 can be an electric push rod. The fixed end of the electric push rod is fixed to the inner wall of one end of the water tank 100 by bolts. The push rod end is connected to the center position of the partition plate 111 by a flange. The connection part is provided with reinforcing ribs to enhance the connection strength and prevent the partition plate 111 from deforming when the push rod is pushed. When the push rod extends, it drives the partition plate 111 to move along the guide groove to the other end of the water tank 100, increasing the volume of the first accommodating space 120 and decreasing the volume of the second accommodating space 130. When the push rod retracts, the partition plate 111 moves to the fixed end, decreasing the volume of the first accommodating space 120 and increasing the volume of the second accommodating space 130. Throughout the adjustment process, the elastic sealing rubber strip is always in close contact with the inner wall of the water tank 100 to maintain a sealed state.

[0067] The sealing structure of the partition plate 111 can completely block water flow, ensuring that the water volume adjustment of the two spaces does not interfere with each other and avoids the failure of tilt adjustment due to water flow. The cooperation between the guide groove and the slider can ensure that the partition plate 111 slides smoothly. The use of grease can reduce friction and jamming, ensuring that the adjusting component 112 can smoothly drive the partition plate 111 to move. The precise control of the electric push rod can realize the precise adjustment of the moving distance and speed of the partition plate 111, thereby precisely changing the volume of the two accommodating spaces to adapt to different degrees of tilt adjustment needs. For example, when the vehicle tilts severely, the push rod can be controlled to move quickly, significantly adjusting the space volume and quickly counteracting the tilt.

[0068] In this embodiment, the structure of the partition component 110 enables adjustable volumes of the two accommodating spaces. Combined with the water volume adjustment of the water supply and drainage component 200, this further expands the range and precision of attitude adjustment, enhancing the system's ability to handle complex attitude deviations. When there is no external water source for the water supply and drainage component 200, the partition plate 111 can be moved by the adjusting component 112 to adjust the vehicle's center of gravity during tilting, thereby balancing the vehicle.

[0069] Combination Figure 3 The present invention also provides an attitude adjustment system, including the attitude adjustment device of the above embodiments, and further including a sensing component 300 and a control module 400. The sensing component 300 includes an inertial measurement unit 310, a water level sensor 320, and a water source detection sensor 330. The inertial measurement unit 310 is used to collect the vehicle's pitch angle and roll angle. The water level sensor 320 is disposed in the water tank 100 of the vehicle's attitude adjustment device and is used to collect the water volume parameters in the water tank 100. The water source detection sensor 330 is used to detect the inlet water source status of the water supply and drainage component 200. The control module 400 includes an electronic control unit 410, which is connected to the inertial measurement unit 310, the water level sensor 320, the water source detection sensor 330, and the water supply and drainage component 200, respectively, and is used to receive the parameters collected by the inertial measurement unit 310, the water level sensor 320, and the water source detection sensor 330 and control the conveying action of the water supply and drainage component 200.

[0070] In some embodiments, the inertial measurement unit 310 of the sensing component 300 is installed near the vehicle's center of gravity, such as under the floor in the middle of the vehicle body. This location minimizes the interference of local vehicle vibrations on the measurement data, ensuring that the collected data such as vehicle pitch angle and vehicle roll angle more closely match the actual vehicle attitude. The inertial measurement unit 310 is connected to the electronic control unit 410 of the control module 400 via a CAN bus. The CAN bus has a high transmission rate and strong anti-interference capability, enabling real-time transmission of collected data to the electronic control unit 410 with a short transmission delay, ensuring that the electronic control unit 410 can promptly acquire changes in vehicle attitude and make rapid adjustment decisions. The installation position of the inertial measurement unit 310 and its connection to the bus ensure accurate and real-time attitude data, providing reliable decision-making basis for the electronic control unit 410 and avoiding adjustment errors due to data deviations.

[0071] For example, there are two water level sensors 320, which are fixed on the inner walls of the first and second accommodating spaces 120 and 130 respectively. Multiple detection points are evenly arranged along the height direction, which can detect the water level in each space in real time and then calculate the water volume parameters. The water level sensors 320 are connected to the electronic control unit 410 through wires. They can not only transmit real-time water level data, but also send alarm signals when the water level reaches a preset maximum or minimum value. For example, when the water level exceeds the maximum value, it reminds the electronic control unit 410 to stop water supply to prevent water overflow and damage to the trunk components; when the water level is below the minimum value, it reminds the electronic control unit 410 to stop drainage to prevent the water pump 210 from running dry. The dual water level sensors 320 can realize independent monitoring and alarm of the water volume in the two accommodating spaces, prevent abnormal water volume, and protect system components. The water source detection sensor 330 can protect the water pump 210, prevent it from running dry and causing damage, and extend the service life of the water pump 210.

[0072] For example, the water source detection sensor 330 is installed at the water inlet end of the water inlet pipe 230. It can adopt the infrared detection principle. When the sensor detects that the water inlet end is in contact with water, it sends a water source signal to the electronic control unit 410; when no water is detected, it sends a no water source signal. The detection frequency of the sensor is matched with the working control requirements of the water pump 210, ensuring that the electronic control unit 410 can know the water source status in time and avoid starting the water pump 210 when there is no water source, which would cause it to run dry and be damaged.

[0073] For example, the electronic control unit 410 is installed in a waterproof box below the vehicle's center console. The waterproof box prevents moisture from entering the electronic control unit 410 when the vehicle is wading through water, thus avoiding short circuits. The electronic control unit 410 stores preset attitude thresholds such as head-down threshold, head-up threshold, and tilt threshold, as well as control algorithms. After receiving signals from various sensors, it calculates the required water supply and drainage actions through algorithms. For example, it calculates the water supply based on the degree to which the tilt angle exceeds the threshold, and then sends control signals to components such as the water pump 210 and the reversing valve 220 to drive them to perform the corresponding actions. The waterproof installation of the electronic control unit 410 ensures the reliable operation of the control core and avoids water wading failures. In this embodiment, head-down refers to the front of the vehicle tilting downwards, head-up refers to the front of the vehicle tilting upwards, and tilt refers to one side of the vehicle being higher than the other side in the width direction.

[0074] The sensing component 300 and the control module 400 work together to form a complete closed-loop control system, which can adjust the water supply and drainage actions in real time according to the actual posture of the vehicle, ensuring accurate and timely posture adjustment and improving the stability and safety of the vehicle in water.

[0075] According to one embodiment of the present invention, the separation assembly 110 of the attitude adjustment device includes a separation plate 111 and an adjustment member 112. An electronic control unit 410 is connected to the adjustment member 112. The electronic control unit 410 is also used to receive parameters collected by the sensing assembly 300 and control the action of the adjustment member 112.

[0076] Optionally, the electronic control unit 410 of the control module 400 is connected to the adjustment component 112 (e.g., an electric push rod) via a wear-resistant insulated wire. The outer layer of the wire is wrapped with a flame-retardant sleeve, which can prevent the wire from being worn by other components during vehicle operation, thus preventing short circuits, and can also prevent the spread of flames in case of an accident, thereby improving system safety. The wiring path avoids moving parts such as vehicle seat rails and door hinges, so as to prevent the wire from being squeezed or pulled by moving parts.

[0077] Before the electronic control unit 410 controls the adjustment component 112 to operate, it comprehensively analyzes the roll angle data of the inertial measurement unit 310, the water volume data of the water level sensor 320, and the water source status of the water source detection sensor 330. When the vehicle roll angle exceeds the preset range and the water source detection sensor 330 continuously sends a no-water-source signal, that is, the water volume cannot be adjusted by water supply and drainage, the control program of the adjustment component 112 is started. If a water source signal is detected, the water supply and drainage component 200 is controlled first to adjust the water volume. Because water supply and drainage adjustment does not require changing the spatial volume, the response speed is faster, and the frequency of use of the adjustment component 112 can be reduced, thus extending its service life.

[0078] The electronic control unit 410 calculates the target moving distance of the partition plate 111 based on the direction and magnitude of the roll angle. For example, when the vehicle rolls to the left beyond the threshold, the volume of the second right-side accommodating space 130 needs to be increased to counteract the left roll. The electronic control unit 410 calculates the distance that the partition plate 111 needs to move to the left based on the left roll angle, and then sends an electrical signal to control the electric push rod to extend, causing the partition plate 111 to slide to the left along the guide groove. When the vehicle rolls to the right beyond the threshold, the electric push rod is controlled to retract, causing the partition plate 111 to slide to the right, increasing the volume of the first left-side accommodating space 120.

[0079] During the adjustment process, the electronic control unit 410 receives the roll angle data from the inertial measurement unit 310 in real time. When the roll angle returns to the preset range, it sends a stop signal to the electric push rod to avoid over-adjustment and prevent the vehicle from tilting from one side to the other.

[0080] In this embodiment, the electronic control unit 410's control of the adjusting member 112 expands the applicable scenarios for attitude adjustment. Even without external water supply, tilt adjustment can still be achieved by adjusting the volume of the accommodating space, thus improving the system's adaptability and reliability.

[0081] According to one embodiment of the present invention, the control module 400 further includes a human-machine interface 420, which is connected to the electronic control unit 410 and is used to display system operating status information.

[0082] In some embodiments, the human-machine interface 420 is integrated into the vehicle's central control display screen, eliminating the need for an additional independent screen, saving interior space and maintaining a clean interior environment. The human-machine interface 420 adopts a graphical design, dividing the system operating status into multiple display areas, including the system working status area, the water tank 100 information area, the vehicle posture area, and the water supply and drainage action area.

[0083] The system operating status area displays the system status using indicator lights of different colors: green indicates normal system operation, red indicates a system malfunction, and yellow indicates the system is in standby mode. The water tank 100 information area displays the total water volume of the water tank 100 and the water volume distribution in the two compartments. The vehicle posture area visually displays the current pitch angle and roll angle using a vehicle outline diagram and numerical labels. The water supply and drainage action area displays the current action status of the water pump 210 and the reversing valve 220 using dynamic icons and text, such as the water pump 210 running and the reversing valve 220 supplying water to the right chamber.

[0084] The human-machine interface 420 and the electronic control unit 410 are connected via a CAN bus. The electronic control unit 410 transmits real-time collected system operation data to the human-machine interface 420. The data transmission delay is controlled to be within a short time to ensure that the information displayed on the interface is consistent with the actual system status without significant lag. When the system detects a fault, such as the water level sensor 320 having no signal or the water pump 210 not responding to the control signal, the electronic control unit 410 sends a fault signal to the human-machine interface 420. The interface immediately flashes a red warning in the fault area and displays a text prompt indicating the fault type. At the same time, the vehicle's buzzer sounds an alarm to alert the driver to the system malfunction.

[0085] In this embodiment, the integrated design avoids occupying additional interior space and allows the driver to quickly check the system status while driving without excessive distraction. The graphical, partitioned display makes information intuitive and easy to understand, enabling the driver to quickly obtain key information such as the vehicle's current tilt angle and whether the water supply and drainage functions are normal. Real-time data transmission ensures information accuracy, preventing incorrect judgments due to information lag. The fault alarm function promptly alerts the driver to system abnormalities, facilitating appropriate actions such as stopping for inspection or contacting repair services, preventing posture adjustment failures and potential safety risks due to malfunctions. The human-machine interface 420 provides the driver with clear and real-time system status feedback, enhancing the driver's control over the system and improving its safety and maintainability.

[0086] According to one embodiment of the present invention, the system operating status information includes the water volume in the water tank 100, the current roll angle and pitch angle of the vehicle, and the operating status of the water supply and drainage components 200.

[0087] For example, the water level information of water tank 100 in the system operation status information is displayed on the human-machine interface 420 in the form of a progress bar and text. The length of the progress bar corresponds to the total volume of water tank 100. The inside of the progress bar is filled with blue, and the filling length represents the proportion of the current total water volume to the total volume. The specific water volume ratio value is marked next to the progress bar, such as total water volume: 55%. At the same time, the progress bar is divided into warning areas of different colors. The blue area indicates that the water volume is within the normal adjustment range, the red area indicates that the water volume is too high, approaching or reaching the maximum volume, and the yellow area indicates that the water volume is too low, approaching or reaching the minimum volume. The driver can quickly judge whether the water volume is normal by the color.

[0088] In addition, the water tank 100 also displays the water volume of the first compartment 120 and the second compartment 130, such as the water volume of the left compartment: 50% and the water volume of the right compartment: 60%, allowing the driver to clearly understand the difference in water volume between the two compartments and help determine whether the vehicle has a tendency to tilt.

[0089] The vehicle's current pitch angle information is presented in a combination of numerical and graphical representations. The numerical values ​​are directly marked next to the vehicle's side profile diagram, such as pitch angle: -1.8°. A negative sign indicates the front of the vehicle is tucked in, and a positive sign indicates the front is raised. The side profile diagram will tilt synchronously according to the actual pitch angle. For example, when the front of the vehicle is tucked in, the front of the vehicle tilts downwards, and when the front of the vehicle is raised, the rear of the vehicle tilts downwards. The driver can intuitively perceive the vehicle's current longitudinal attitude through the graphics.

[0090] The operating status of the water supply and drainage components 200 is displayed through a combination of dynamic icons and text descriptions. When the water pump 210 is working, the interface displays a rotating water pump 210 icon and the text "Water pump 210 is running"; when the water pump 210 stops, the icon is still and the text "Water pump 210 is in standby" is displayed; when the reversing valve 220 is switching, a dynamic icon of valve switching and the text of the target water supply space are displayed, such as "Reversing valve 220 is adjusting, water is supplied to the left-hand accommodating space".

[0091] The water level progress bar and color-coded warning design allow drivers to quickly identify whether the water level is within a safe range, preventing overflow due to excessive water or inability to adjust due to insufficient water. The compartmentalized water level display also helps drivers anticipate roll risks. The combination of numerical and graphical representations of the pitch angle balances data accuracy and visual intuitiveness, meeting the needs of maintenance personnel for precise data while allowing drivers to quickly perceive the vehicle's position. The dynamic display of water supply and drainage actions allows drivers to clearly understand whether the system is performing adjustments and the direction of those adjustments, enhancing their confidence in the system's operation. For example, seeing water being supplied to the right-side compartment indicates that the system is adjusting the right-side water level to counteract left-side roll.

[0092] The detailed display of system operating status information allows drivers to have a comprehensive understanding of the system and vehicle's attitude, which not only meets the intuitive perception needs of daily driving, but also provides basic data for later maintenance, while improving the system's transparency and user experience.

[0093] Combination Figure 4 The present invention also provides an attitude adjustment method, applied to the attitude adjustment system of the above embodiments, comprising the following steps:

[0094] S100: Obtain vehicle pitch angle, vehicle roll angle, water volume parameters in water tank 100, and inlet water source status of water supply and drainage component 200.

[0095] Optionally, in the parameter acquisition step of the attitude adjustment method, the inertial measurement unit 310 collects the vehicle's pitch angle and roll angle at a fixed frequency. The collection frequency is set according to the response requirements of vehicle attitude changes to ensure that subtle changes in vehicle attitude can be captured in a timely manner. The collected raw data is processed by the filtering algorithm inside the electronic control unit 410 to filter out instantaneous interference data caused by slight bumps or uneven road surfaces during vehicle operation, such as brief pitch angle fluctuations caused by the vehicle running over small stones. This prevents the electronic control unit 410 from making incorrect adjustment decisions due to false data, ensuring that the acquired attitude data is accurate and reliable. The water level sensor 320 collects the water level data of the first containment space 120 and the second containment space 130 in real time. Each time data is collected, the current water level is compared with the preset maximum and minimum water level thresholds. If the water level exceeds the threshold range, an alarm signal is immediately sent to the electronic control unit 410. After receiving the signal, the electronic control unit 410 promptly controls the water supply and drainage components 200 to stop the corresponding actions. If the water level is too high, water supply is stopped; if the water level is too low, drainage is stopped. The water source detection sensor 330 continuously detects the water source status at the inlet of the water inlet pipe 230. The detection frequency matches the working control rhythm of the water pump 210, ensuring that the electronic control unit 410 can accurately know whether there is external water supply before controlling the water pump 210 to start, thus preventing the water pump 210 from running dry when there is no water source.

[0096] S200 controls the delivery action of the water supply and drainage component 200 based on the vehicle's longitudinal tilt angle, vehicle side tilt angle, water volume parameters in the water tank 100, and the inlet water source status of the water supply and drainage component 200.

[0097] In some embodiments, during the step of controlling the water supply and drainage actions, the electronic control unit 410 first performs a comprehensive analysis of all acquired parameters to determine whether the current vehicle posture needs adjustment: if the pitch angle is within a preset normal range, such as -1°≤pitch angle≤+1°, and the roll angle is also within a normal range, such as -0.5°≤roll angle≤+0.5°, then the vehicle posture is determined to be stable and no adjustment is needed, and the water supply and drainage component 200 remains in standby mode; if the pitch angle or roll angle exceeds the normal range, then the required adjustment force is calculated according to the degree to which the parameters exceed the normal range. For example, if the pitch angle is -3°, exceeding the submerged threshold of -2.5°, then the required increase in rear axle load is calculated, and then the water supply volume and water supply speed are determined. The electronic control unit 410 then sends control signals to the water supply and drainage assembly 200, such as controlling the water pump 210 to start, setting the water supply flow rate, and controlling the reversing valve 220 to switch to the target accommodating space. During the adjustment process, the electronic control unit 410 continuously acquires attitude parameters and water volume parameters, and dynamically adjusts the control signals according to the parameter changes. For example, when the pitch angle gradually recovers to -2.0°, the water supply flow rate of the water pump 210 is reduced to avoid the vehicle from being tilted down to being tilted up due to excessive water supply, thus ensuring a smooth recovery of the attitude.

[0098] Fixed-frequency acquisition and filtering algorithms ensure accurate attitude data, eliminate interference, avoid ineffective adjustment actions, and save system energy; water level threshold comparison and alarm can protect the system in time and prevent abnormal water volume from causing component damage; water source detection frequency matching can protect water pump 210 and extend its service life; comprehensive parameter analysis and dynamic adjustment control signals can achieve precise attitude adjustment, avoid over- or under-adjustment, and ensure smooth recovery of vehicle attitude.

[0099] The attitude adjustment method in this embodiment achieves efficient and stable adjustment of vehicle attitude by accurately acquiring parameters, making scientific analysis and decisions, and dynamically adjusting and controlling, while taking into account both system reliability and adjustment accuracy.

[0100] According to one embodiment of the present invention, controlling the conveying action of the water supply and drainage assembly 200 based on the vehicle pitch angle, vehicle roll angle, water volume parameters in the water tank 100, and the inlet water source status of the water supply and drainage assembly 200 includes:

[0101] The vehicle's longitudinal tilt angle is compared with the preset submerged threshold and raised threshold, and the inlet water source status of the water supply and drainage component 200 is compared with the preset water source determination conditions.

[0102] When the vehicle's tilt angle meets the submersion threshold and there is external water supply at the inlet of the water supply and drainage component 200, the target water supply volume is determined by combining the water volume parameters in the water tank 100, and the water supply and drainage component 200 is controlled to deliver the corresponding target water supply volume to the water tank 100.

[0103] When the vehicle's tilt angle meets the head-up threshold and there is external water supply at the inlet of the water supply and drainage component 200, the target drainage volume is determined by combining the water volume parameters in the water tank 100, and the water supply and drainage component 200 is controlled to discharge the corresponding target drainage volume of water from the water tank 100.

[0104] For example, in the process of controlling water supply and drainage based on parameters, the parameters are first compared: the preset head-down threshold and head-up threshold are preset in the electronic control unit 410 according to the inherent parameters of the vehicle such as curb weight, wheelbase, and axle load distribution. The thresholds are different for different vehicle models. For example, for vehicles with a longer wheelbase, the head-down threshold can be set to -2.8° due to the greater longitudinal inertia of the vehicle body, while for vehicles with a shorter wheelbase, it is set to -2.5°. This ensures that the thresholds meet the actual posture adjustment needs of the vehicle and avoids over- or under-adjustment of some models due to a uniform threshold. The preset water source determination condition is that the water source detection sensor 330 detects a water source signal multiple times in a row. For example, if a water source is detected three times in a row, it is determined that there is external water supply. This design can avoid misjudgment caused by single detection error. For example, if the water inlet pipe 230 briefly comes into contact with water droplets during vehicle operation, rather than being continuously submerged in water, it is determined that there is no water source, preventing the water pump 210 from running dry due to a brief misjudgment.

[0105] When it is determined that the vehicle's pitch angle meets the submersion threshold, such as a pitch angle of -3°, which is less than the submersion threshold of -2.5°, and there is external water supply, the electronic control unit 410 calculates the target water supply based on the current total water volume of the water tank 100: First, based on the difference between the pitch angle and the threshold, for example, the difference between the pitch angle of -3° and the submersion threshold of -2.5° is -0.5°, the required increase in rear axle load is calculated using the correlation model between the vehicle's rear axle load and the pitch angle; then, based on the density of water and the distance from the installation position of the water tank 100 to the rear axle, the required increase in water volume, i.e., the target water supply, is calculated. If the sum of the current water volume in the water tank 100 and the target water supply volume does not exceed the maximum capacity of the water tank 100, the water supply and drainage component 200 is controlled to supply water to both compartments simultaneously to ensure that the rear axle load increases evenly and to avoid vehicle tilting due to water supply from one side. If the sum of the two exceeds the maximum capacity, water is supplied according to the maximum water volume that the water tank 100 can increase, and a prompt is displayed on the human-machine interface 420 indicating that the adjustment effect is limited if the water volume is insufficient, to remind the driver to pay attention.

[0106] When the vehicle's pitch angle meets the head-up threshold (e.g., pitch angle +2.8°) and exceeds the head-up threshold +2.3°, and external water supply is available, the electronic control unit 410 calculates the target drainage volume based on the current water level in the water tank 100. This is done by calculating the required reduction in rear axle load based on the difference between the pitch angle and the head-up threshold (e.g., the difference between pitch angle +2.8° and head-up threshold +2.3° is +0.5°), and then converting this to the target drainage volume. If the current water level in the water tank 100 exceeds the target drainage volume, the water supply and drainage components 200 are controlled to simultaneously discharge water from both storage compartments. If the current water level is less than the target drainage volume, water is discharged to the minimum level in the water tank 100, and a prompt is displayed on the interface.

[0107] Setting thresholds based on vehicle model ensures the accuracy of posture adjustment and adapts to the structural characteristics of different models; multiple water source checks reduce misjudgments and protect the water pump 210; accurate calculation of target water supply and drainage volume avoids over- or under-adjustment of water volume, ensuring smooth posture recovery; insufficient water volume prompts allow drivers to understand the limitations of the system's adjustment capabilities and take proactive measures, such as slowing down, to reduce the risk of posture changes.

[0108] In this embodiment, the control logic can achieve precise water supply and drainage in scenarios where the head is buried or raised, improving the reliability of system regulation, while also taking into account the driver's right to know and enhancing driving safety.

[0109] According to one embodiment of the present invention, the water volume parameters include the water volume parameters of the first containing space 120 and the water volume parameters of the second containing space 130.

[0110] The above-mentioned determination of the target water supply volume based on the water volume parameters in the water tank 100, and control of the water supply and drainage component 200 to deliver water corresponding to the target water supply volume to the water tank 100 includes:

[0111] Based on the vehicle roll angle, the water volume parameters of the first and second containment spaces 120 and 130, the first target water supply volume for the first containment space 120 and the second target water supply volume for the second containment space 130 are determined. The water supply and drainage components 200 are then controlled to deliver the corresponding first target water supply volume to the first containment space 120 and the corresponding second target water supply volume to the second containment space 130. For example, the electronic control unit 410 first determines the roll direction and degree based on the vehicle roll angle. For instance, if the roll angle is +1.5°, it indicates a leftward roll, exceeding a preset roll threshold of +1°. In this case, the water volume in the right-side second containment space 130 needs to be increased to counteract the leftward roll. The electronic control unit 410 calculates the required increase in load difference between the right and left sides based on the difference in roll angle exceeding the threshold, for example, a difference of +0.5°, combined with parameters such as the vehicle wheelbase and the position of the water tank 100. Then, based on the volume ratio of the two containment spaces, it calculates the additional water volume required for the second containment space 130, i.e., the portion where the second target water supply volume exceeds the first target water supply volume. Simultaneously, based on the previously calculated total target water supply for suppressing head burying or head raising, the total target water supply is allocated into a first target water supply and a second target water supply. For example, if the total target water supply is 10 liters, and an additional 3 liters are needed on the right side, then the first target water supply is 3.5 liters, and the second target water supply is 6.5 liters. The electronic control unit 410 achieves water distribution in two ways: first, it controls the reversing valve 220 to simultaneously connect the two receiving spaces and adjusts the output flow of the water pump 210 to both spaces, delivering 3.5 liters / minute of water to the first receiving space 120 and 6.5 liters / minute of water to the second receiving space 130; second, it controls the reversing valve 220 to alternately connect the two receiving spaces, calculating the water supply time for each space based on the flow rate. For example, assuming the total flow rate of the water pump 210 is 10 liters / minute, then water is supplied to the first receiving space 120 for 35 seconds and to the second receiving space 130 for 65 seconds, ensuring that each space receives the target water supply.

[0112] The above-mentioned determination of the target drainage volume based on the water volume parameters in the water tank 100, and control of the water supply and drainage component 200 to discharge water corresponding to the target drainage volume from the water tank 100, includes:

[0113] Based on the vehicle roll angle, the water volume parameters of the first containment space 120 and the water volume parameters of the second containment space 130, the first target drainage volume corresponding to the first containment space 120 and the second target drainage volume corresponding to the second containment space 130 are determined. The water supply and drainage component 200 is controlled to discharge water corresponding to the first target water supply volume of the first containment space 120 and water corresponding to the second target water supply volume of the second containment space 130.

[0114] The steps for determining the target drainage volume during drainage are similar to those for water supply: If the vehicle is tilted, such as a tilt angle of -1.5°, and the vehicle is tilted to the right, the water volume in the second right-side compartment 130 needs to be reduced. The electronic control unit 410 calculates the load difference between the right and left sides that needs to be reduced based on the tilt angle difference. Combined with the total target drainage volume used to suppress head lifting, the first target drainage volume and the second target drainage volume are allocated. For example, if the total target drainage volume is 8 liters and an additional 2 liters need to be drained from the right side, then the first target drainage volume is 3 liters and the second target drainage volume is 5 liters.

[0115] When controlling the water supply and drainage components 200, the electronic control unit 410 controls the opening time of the first drain valve 250 and the second drain valve 270. For example, assuming the drainage flow rate is 10 liters / minute, the first drain valve 250 opens for 3 seconds and the second drain valve 270 opens for 5 seconds to ensure that the corresponding amount of water is discharged from the two spaces.

[0116] In this embodiment, the flow distribution or time control during water supply can precisely achieve the target water supply volume for both spaces, effectively counteracting tilting while suppressing tilting or raising the vehicle's head, and avoiding the exacerbation of tilting caused by adjusting only the longitudinal tilt. Similarly, the valve opening time control during drainage can precisely discharge the target water volume, suppressing tilting while balancing tilting, achieving coordinated adjustment of both longitudinal and lateral tilts without the need for two separate adjustments, thus improving adjustment efficiency and saving time. This water distribution method can simultaneously address the vehicle's longitudinal and lateral tilt issues, enhancing the system's overall adjustment capabilities, ensuring the vehicle can quickly regain stability under complex posture deviations, and improving the vehicle's adaptability to driving in water.

[0117] According to one embodiment of the present invention, when the separation assembly 110 of the attitude adjustment device includes a separation plate 111 and an adjustment member 112, the attitude adjustment further includes:

[0118] The adjustment action of the control adjustment component 112 is controlled based on the vehicle roll angle and the inlet water source status of the water supply and drainage component 200.

[0119] When the partition assembly 110 includes the partition plate 111 and the adjusting component 112, the control of the adjusting component 112 needs to be combined with the vehicle roll angle and water source status for comprehensive judgment: the electronic control unit 410 first obtains the roll angle data from the inertial measurement unit 310 and the water source status data from the water source detection sensor 330. Only when the roll angle exceeds the preset range, such as the preset range of +1° to -1°, and the water source detection sensor 330 detects no external water supply multiple times in a row, will the adjusting component 112 control program be started; if external water supply is detected, the water supply and drainage assembly 200 will be controlled first to adjust the water volume of the two accommodating spaces to balance the roll, because the water supply and drainage adjustment does not need to change the space volume, the response speed is faster, and it can reduce the mechanical wear of the adjusting component 112 and extend its service life.

[0120] The electronic control unit 410 determines the target adjustment direction of the partition 111 based on the direction of the vehicle's roll angle: when the roll angle is positive and the vehicle is tilted to the left, the left side of the vehicle is lower than the right side. At this time, it is necessary to increase the volume of the second right-side accommodating space 130. This is achieved by moving the partition 111 to the left, thus increasing the volume of the second accommodating space 130. Even if the water volume in both spaces remains unchanged, the increased volume of the right-side space enhances the weight distribution effect of the water on the right side of the vehicle, which can counteract the left-side tilting trend. When the roll angle is negative and the vehicle is tilted to the right, the right side of the vehicle is lower than the left side. This is achieved by increasing the volume of the first left-side accommodating space 120. This is achieved by moving the partition 111 to the right, thus increasing the volume of the first accommodating space 120, in order to counteract the right-side tilting trend.

[0121] During the operation of the adjusting component 112, the electronic control unit 410 collects the roll angle data of the inertial measurement unit 310 in real time. At fixed intervals, such as 0.5 seconds, it determines whether the roll angle has returned to the preset range. If it has not returned, it continues to control the adjusting component 112 to drive the partition plate 111 to move. If it has returned, it immediately sends a stop signal to the adjusting component 112 to prevent the partition plate 111 from moving excessively and causing the vehicle to tilt in the opposite direction.

[0122] In this embodiment, the logic of prioritizing water supply and drainage adjustment can make full use of the convenience of external water replenishment, improve adjustment efficiency, and reduce the wear of adjustment component 112; multiple detections of no water source can avoid misjudgment and prevent the adjustment component 112 from being activated when there is water, thus wasting energy; determining the adjustment direction based on the tilt direction can ensure precise adjustment action, directly addressing the cause of tilt, resulting in a more obvious adjustment effect; real-time monitoring and stop control can avoid over-adjustment, ensure the smooth recovery of vehicle posture, and reduce the ineffective action of adjustment component 112, saving energy.

[0123] The above control method reasonably allocates the application scenarios of the two adjustment methods, and can still achieve tilt adjustment when there is no external water supply, thus expanding the applicability of the system and ensuring that the vehicle can maintain a stable posture under different water source conditions.

[0124] According to one embodiment of the present invention, based on the vehicle roll angle and the inlet water source status of the water supply and drainage assembly 200, the adjustment action of the control adjuster 112 includes:

[0125] The vehicle roll angle is compared with the preset range of tilt angle, and the inlet water source status of the water supply and drainage component 200 is compared with the preset water source determination conditions.

[0126] When it is determined that the vehicle roll angle exceeds the preset range and there is no external water supply to the inlet of the water supply and drainage component 200, the target adjustment direction of the partition component 110 is determined based on the vehicle roll angle, and the control adjustment component 112 drives the partition component 110 to slide in the target adjustment direction until the vehicle roll angle meets the preset range.

[0127] Optionally, during the process of controlling and adjusting the vehicle roll angle and water source status based on the vehicle roll angle and water source status adjustment component 112, the vehicle roll angle is first compared with a preset range. This preset range can be dynamically switched according to the vehicle's driving state. When the vehicle is floating on water and the speed is greater than 0, the preset range of the roll angle is set to -0.8° to +0.8°, because the change in vehicle posture during floating on water has a significant impact on handling stability and requires stricter control. When the vehicle is stationary and the speed is 0, the preset range is widened to -1.2° to +1.2°. When stationary, the vehicle posture changes slowly and the stability requirements are relatively low. A wider range can reduce unnecessary adjustment actions and save energy. The electronic control unit 410 determines the vehicle's driving state by acquiring the vehicle speed signal and automatically switches the corresponding preset range to ensure that the comparison standard meets the actual usage requirements.

[0128] When comparing the water source status, the preset water source determination condition is that the water source detection sensor 330 continuously detects no water source signal for more than a preset time, such as 5 seconds, which is regarded as a continuous lack of external water supply. This design can avoid misjudgment caused by the vehicle briefly leaving the water surface, such as driving through shallow water areas, because when there is no water source for a short time, there may still be water remaining in the water tank 100, which can be adjusted by draining water, without having to immediately start the adjustment component 112.

[0129] When it is determined that the vehicle roll angle exceeds the preset range and there is no external water supply, the electronic control unit 410 calculates the target moving distance of the partition 111 based on the roll angle value: for example, when the vehicle is statically parked, the roll angle is +1.5°, which exceeds the static preset range of +1.2°. Based on parameters such as the total volume of the water tank 100 and the vehicle's wheelbase, the electronic control unit 410 calculates that the partition 111 needs to be moved 5 cm to the left in order to increase the volume of the second accommodating space 130 sufficiently to offset the +1.5° roll. When the control adjustment component 112 drives the partition plate 111 to slide, the electric push rod pushes the partition plate 111 to move at a constant speed, such as 1 cm / s. During the movement, the sealing rubber strip on the edge of the partition plate 111 always fits against the inner wall of the water tank 100 to ensure the sealing of the two spaces. At the same time, the electronic control unit 410 monitors the actual movement distance of the partition plate 111 in real time through the stroke sensor built into the electric push rod. When the actual movement distance reaches the target movement distance, even if the roll angle has not been fully corrected, the action of the adjustment component 112 is immediately stopped to prevent the partition plate 111 from moving to the end of the water tank 100 and causing structural damage. If the roll angle is still out of range at this time, the electronic control unit 410 displays a prompt on the human-machine interface 420 that the adjustment component 112 has reached its limit and the roll has not been fully corrected, reminding the driver to take other measures, such as moving the items in the vehicle to adjust the center of gravity.

[0130] In this embodiment, dynamically switching preset ranges allows the comparison standard to better match actual driving needs. Strict control during floating ensures operational safety, while relaxed control reduces energy consumption during static conditions. Preset time for determining the absence of water source avoids misjudgment and fully utilizes the remaining 100% of water in the tank, improving resource utilization. Target movement distance calculation and constant speed movement ensure smooth and precise adjustment actions, avoiding sudden attitude changes. Travel sensor monitoring and limit warnings protect the system structure from damage and remind the driver to adjust limits, enhancing driving safety.

[0131] The above control logic takes into account the needs of different scenarios, ensuring that the action of the regulating component 112 is reliable and accurate, while protecting the system structure and improving the safety and practicality of the system.

[0132] This embodiment also provides a vehicle, including the above-described attitude adjustment device or the above-described attitude adjustment system.

[0133] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0134] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A posture adjustment device, characterized in that, include: A water tank is installed in a predetermined area of ​​the vehicle's trunk. The water tank is equipped with a partition component that divides the inner cavity of the water tank into a first accommodating space and a second accommodating space. The first accommodating space and the second accommodating space are arranged along the width of the vehicle. A water supply and drainage assembly, connected to the water tank, is used to supply water to the first and / or the second containment space, and to discharge water from the first and / or the second containment space. The partition assembly includes a partition plate and an adjusting member. The partition plate is slidably engaged with the inner wall of the water tank. The adjusting member is used to drive the partition plate to slide along the inner wall of the water tank to adjust the size of the first and second accommodating spaces.

2. The attitude adjustment device according to claim 1, characterized in that, The water supply and drainage components include: Water pump; A reversing valve having a first valve port, a second valve port, and a third valve port, wherein the first valve port is connected to the outlet of the water pump, the second valve port is connected to the first accommodating space, and the third valve port is connected to the second accommodating space, and the reversing valve is adapted to switch the connection state between the second valve port and the third valve port and the first valve port. The water inlet pipe is connected to the water inlet of the water pump.

3. The attitude adjustment device according to claim 2, characterized in that, The end of the water inlet pipe opposite to the water pump is located in the vehicle's engine compartment.

4. The attitude adjustment device according to claim 2, characterized in that, The water pump is used to drive water to be injected into the water tank from the outside and to drive water in the water tank to be discharged to the outside; Alternatively, the water pump is used to drive water to be injected into the water tank from the outside. The water supply and drainage assembly also includes a first drain pipe, a first drain valve, a second drain pipe, and a second drain valve. The first drain pipe is connected to the first receiving space, the first drain valve is connected to the first drain pipe, and the first drain valve is used to control the opening and closing of the first drain pipe. The second drain pipe is connected to the second receiving space, the second drain valve is connected to the second drain pipe, and the second drain valve is used to control the opening and closing of the second drain pipe.

5. The attitude adjustment device according to any one of claims 1 to 4, characterized in that, The preset area of ​​the vehicle trunk includes the spare tire compartment area or the area under the trunk floor.

6. An attitude adjustment system, characterized in that, include: The attitude adjustment device as described in any one of claims 1-5; The sensing components include an inertial measurement unit, a water level sensor, and a water source detection sensor. The inertial measurement unit is used to collect the vehicle's pitch angle and roll angle. The water level sensor is installed in the water tank of the vehicle's attitude adjustment device and is used to collect the water volume parameters in the water tank. The water source detection sensor is used to detect the inlet water source status of the water supply and drainage components. as well as The control module includes an electronic control unit, which is connected to the inertial measurement unit, the water level sensor, the water source detection sensor, and the water supply and drainage assembly, respectively, and is used to receive parameters collected by the inertial measurement unit, the water level sensor, and the water source detection sensor and control the conveying action of the water supply and drainage assembly.

7. The attitude adjustment system according to claim 6, characterized in that, The attitude adjustment device includes a partition plate and an adjustment component. The electronic control unit is connected to the adjustment component and is also used to receive parameters collected by the sensing component and control the movement of the adjustment component.

8. The attitude adjustment system according to claim 6 or 7, characterized in that, The control module also includes: A human-machine interface, which is connected to the electronic control unit, is used to display system operating status information.

9. The attitude adjustment system according to claim 8, characterized in that, The system operating status information includes the water volume in the water tank, the vehicle's current roll angle, pitch angle, and the operating status of the water supply and drainage components.

10. A posture adjustment method, applied to the posture adjustment system according to any one of claims 6-9, characterized in that, Includes the following steps: Acquire vehicle pitch angle, vehicle roll angle, water volume parameters in the water tank, and inlet water source status of the water supply and drainage components; The delivery action of the water supply and drainage component is controlled based on the vehicle's longitudinal tilt angle, the vehicle's side tilt angle, the water volume parameters in the water tank, and the inlet water source status of the water supply and drainage component.

11. The attitude adjustment method according to claim 10, characterized in that, The control of the water supply and drainage component's delivery action based on the vehicle's pitch angle, vehicle roll angle, water volume parameters in the water tank, and inlet water source status includes: The vehicle's pitch angle is compared with preset burying threshold and raising threshold, and the inlet water source status of the water supply and drainage component is compared with preset water source determination conditions. When it is determined that the vehicle's pitch angle meets the submersion threshold and there is external water supply at the inlet of the water supply and drainage component, the target water supply volume is determined in combination with the water volume parameters in the water tank, and the water supply and drainage component is controlled to deliver the corresponding target water supply volume to the water tank. When the vehicle's tilt angle meets the head-up threshold and there is external water supply at the inlet of the water supply and drainage component, the target drainage volume is determined by combining the water volume parameters in the water tank, and the water supply and drainage component is controlled to discharge the corresponding target drainage volume of water from the water tank.

12. The attitude adjustment method according to claim 11, characterized in that, The water volume parameters include the water volume parameters of the first containment space and the water volume parameters of the second containment space. The process of determining the target water supply volume based on the water volume parameters in the water tank and controlling the water supply and drainage components to deliver water corresponding to the target water supply volume to the water tank includes: Based on the vehicle roll angle, the water volume parameters of the first and second accommodating spaces, the first target water supply volume corresponding to the first accommodating space and the second target water supply volume corresponding to the second accommodating space are determined, and the water supply and drainage components are controlled to deliver water corresponding to the first target water supply volume to the first accommodating space and water corresponding to the second target water supply volume to the second accommodating space. Based on the water volume parameters in the water tank, determine the target drainage volume, and control the water supply and drainage components to discharge the corresponding target drainage volume of water from the water tank: Based on the vehicle roll angle, the water volume parameters of the first and second accommodating spaces, the first target drainage volume corresponding to the first accommodating space and the second target drainage volume corresponding to the second accommodating space are determined. The water supply and drainage components are controlled to discharge the water of the first target water supply volume corresponding to the first accommodating space and the water of the second target water supply volume corresponding to the second accommodating space.

13. The attitude adjustment method according to any one of claims 10 to 12, characterized in that, In the case where the separation assembly of the attitude adjustment device includes a separation plate and an adjustment member, it further includes: The adjustment action of the adjusting component is controlled based on the vehicle roll angle and the inlet water source status of the water supply and drainage assembly.

14. The attitude adjustment method according to claim 13, characterized in that, The control of the adjustment action of the adjusting component based on the vehicle roll angle and the inlet water source status of the water supply and drainage assembly includes: The vehicle roll angle is compared with the preset range of the tilt angle, and the inlet water source status of the water supply and drainage component is compared with the preset water source determination conditions. When it is determined that the vehicle roll angle exceeds the preset range and there is no external water supply to the inlet of the water supply and drainage component, the target adjustment direction of the separator component is determined based on the vehicle roll angle, and the adjusting component is controlled to drive the separator component to slide in the target adjustment direction until the vehicle roll angle meets the preset range.

15. A vehicle, characterized in that, include: The attitude adjustment device as described in any one of claims 1-5; or, The attitude adjustment system as described in any one of claims 6-9.

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