Urea box of vehicle, vehicle and control method of urea box of vehicle

Abstract

The invention discloses a urea box of a vehicle, the vehicle and a control method of the urea box of the vehicle, and the urea box of the vehicle comprises a urea box main body which is provided with a liquid storage space; at least part of the turbulent flow assembly is arranged in the liquid storage space, the turbulent flow assembly is suitable for driving urea in the liquid storage space to flow, the turbulent flow assembly comprises a drainage part and a turbulent flow pipeline, the turbulent flow pipeline is provided with a liquid inlet end and a liquid outlet end, the liquid inlet end is located in the liquid storage space, and the drainage part is suitable for driving the urea in the liquid storage space to flow into the turbulent flow pipeline; and the urea flows out from the liquid outlet end. Therefore, by arranging the turbulent flow assembly, the urea in the liquid storage space can be driven to flow, and when the urea flows, a certain destructive effect can be achieved on ordered gathering of water molecules around condensation nucleuses, so that the icing (crystallization) process of the urea becomes difficult, the icing (crystallization) rate of the urea is reduced, the normal use time of the urea is prolonged, and the service life of the urea is prolonged. Therefore, the tail gas pollution of the vehicle can be reduced.

Description

Technical Field

[0001] The present invention relates to the field of vehicles, and in particular to a urea tank of a vehicle, a vehicle, and a control method of the urea tank of the vehicle. Background Art

[0002] In the related technology, National V and National VI diesel engines generally adopt the SCR technology route, using urea to reduce the NOx content in vehicle exhaust. However, when the temperature of urea reaches the freezing point, it will freeze (crystallize) quickly. After urea freezes (crystallizes), it cannot be used normally, resulting in serious exhaust pollution of vehicles. Therefore, there is an urgent need for a method to reduce the freezing (crystallization) rate of urea. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one object of the present invention is to provide a urea tank for a vehicle, which can reduce the freezing (crystallization) rate of urea and prolong the time during which urea can be used normally.

[0004] The present invention further provides a vehicle.

[0005] The present invention further proposes a control method for a vehicle urea tank.

[0006] The urea tank of a vehicle according to the present invention comprises: a urea tank body, the urea tank body having a liquid storage space; a spoiler assembly, at least a portion of which is disposed in the liquid storage space, the spoiler assembly being suitable for driving the urea in the liquid storage space to flow; the spoiler assembly comprising: a guide member and a spoiler pipeline, the spoiler pipeline having a liquid inlet end and a liquid outlet end, the liquid inlet end being located in the liquid storage space, the guide member being suitable for driving the urea in the liquid storage space to flow into the spoiler pipeline, so that the urea flows out from the liquid outlet end.

[0007] According to the urea tank of the vehicle of the present invention, by providing a spoiler component, it is possible to drive the flow of urea in the liquid storage space. When the urea flows, it will have a certain destructive effect on the orderly aggregation of water molecules around the condensation nuclei, making the freezing (crystallization) process of the urea difficult, thereby reducing the freezing (crystallization) rate of the urea, extending the time that the urea can be used normally, thereby reducing the exhaust pollution of the vehicle.

[0008] In some examples of the present invention, the spoiler assembly further includes: a driving member and a disturbing member, the disturbing member is located in the liquid storage space, and the driving member is transmission-connected to the disturbing member to drive the disturbing member to move.

[0009] In some examples of the present invention, the urea tank of the vehicle further includes: a heating component, the heating component including a first heating element and / or a second heating element; at least a portion of the first heating element is disposed in the liquid storage space, and the first heating element is suitable for being connected to an engine coolant pipeline of the vehicle; the second heating element has a heating end, and at least a portion of the heating end is disposed in the liquid storage space.

[0010] A vehicle according to the present invention comprises the above-mentioned urea tank for the vehicle.

[0011] In some examples of the present invention, the vehicle further includes: an energy storage component, the energy storage component is electrically connected to the spoiler assembly, and the energy storage component is suitable for supplying power to the spoiler assembly.

[0012] In some examples of the present invention, the vehicle further includes: a solar panel, the energy storage component includes a first energy storage component and / or a second energy storage component, the first energy storage component and / or the second energy storage component are both suitable for supplying power to the spoiler assembly, and the solar panel is suitable for charging the first energy storage component.

[0013] The control method of the vehicle urea tank according to the present invention comprises: detecting the ambient temperature and the urea temperature in the urea tank; determining that the ambient temperature is less than a first preset temperature value and the urea temperature is less than the first preset temperature value, and controlling the spoiler component to prevent urea crystallization.

[0014] According to the control method of the vehicle urea tank of the present invention, the freezing (crystallization) process of urea can be made difficult, thereby reducing the freezing (crystallization) rate of urea, prolonging the time during which urea can be used normally, and helping to reduce exhaust pollution of the vehicle.

[0015] In some examples of the present invention, the control method of the vehicle urea tank further includes: determining whether the vehicle meets a preset condition; if the vehicle meets the preset condition, controlling the spoiler component to stop working.

[0016] In some examples of the present invention, the determining whether the vehicle satisfies a preset condition comprises: determining whether the vehicle is started; if the vehicle is not started, determining whether the remaining power of a first energy storage component of the vehicle is greater than a preset power value, and determining whether the urea temperature is greater than or equal to a second preset temperature value; if the remaining power of the first energy storage component is less than or equal to the preset power value or the urea temperature is greater than or equal to the second preset temperature value, the vehicle satisfies the preset condition; if the vehicle is started, determining whether the urea temperature is greater than or equal to the second preset temperature value; if so, the vehicle satisfies the preset condition, wherein the second preset temperature value is greater than the first preset temperature value.

[0017] In some examples of the present invention, after controlling the spoiler component to work, it also includes: if the vehicle is started, determining whether the ambient temperature and the urea temperature are both less than a third preset temperature value, wherein the third preset temperature value is less than the first preset temperature value; if so, controlling the heating component to work and controlling the spoiler component to stop working; after the heating component works, if the urea temperature is greater than or equal to the third preset temperature value, controlling the heating component to stop working and controlling the spoiler component to work.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 is a schematic diagram of a urea tank according to an embodiment of the present invention;

[0021] Figure 2 is a schematic diagram of a vehicle according to an embodiment of the present invention;

[0022] Figure 3 is a flow chart of a method for controlling a vehicle urea tank according to an embodiment of the present invention.

[0023] Reference numerals:

[0024] Urea tank 100; vehicle 200;

[0025] Urea tank body 10; liquid storage space 11;

[0026] Disturbing assembly 20; flow guide 21; disturbing pipeline 22; liquid inlet 221; liquid outlet 222; driving member 23; disturbing member 24;

[0027] Heating assembly 30; first heating element 31; second heating element 32; heating end 321;

[0028] Energy storage component 40; first energy storage component 41;

[0029] Solar panels 50;

[0030] Liquid level sensor 60 ; urea pipe 61 ; controller 62 ; power sensor 63 ; urea temperature sensor 64 ; ambient temperature sensor 65 . DETAILED DESCRIPTION

[0031] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0032] Reference below Figure 1 and Figure 2 A urea tank 100 of a vehicle 200 according to an embodiment of the present invention is described.

[0033] like Figure 1 As shown, the urea tank 100 according to the embodiment of the present invention includes: a urea tank body 10 and a spoiler assembly 20 .

[0034] Among them, the urea tank body 10 can be arranged in the vehicle 200, and the urea tank body 10 has a liquid storage space 11, and the liquid storage space 11 is used to store urea. As some optional embodiments of the present application, one end of the liquid storage space 11 can be opened. As some optional embodiments of the present application, one end of the liquid storage space 11 can be opened, and the open end of the liquid storage space 11 is provided with a cover plate, and the cover plate can move relative to the open end of the liquid storage space 11 to open or close the liquid storage space 11. As some optional embodiments of the present application, the liquid storage space 11 may not have an open end, and the urea tank body 10 may be provided with a through hole connected to the liquid storage space 11 for various pipelines to pass through.

[0035] As some optional embodiments of the present application, Figure 1 As shown, the urea tank 100 may include a liquid level sensor 60, which may be disposed in the liquid storage space 11, and the liquid level sensor 60 may be floated on the urea liquid surface, or the liquid level sensor 60 may be fixedly disposed on the urea tank body 10, and the liquid level sensor 60 may detect the height of the urea liquid level in the liquid storage space 11, and the height of the urea liquid level in the liquid storage space 11 may be displayed on the dashboard of the vehicle 200.

[0036] As some optional embodiments of the present application, Figure 1 As shown, the urea tank 100 may include a urea pipe 61, one end of which may be located in the liquid storage space 11, and urea may be pumped into the urea pipe 61 through various pump structures, and the urea may be sprayed into the exhaust pipe of the vehicle 200 (it may be sprayed into the front section, the middle section, or the rear section of the exhaust pipe) to reduce the NOx component in the exhaust gas of the vehicle 200.

[0037] At least part of the spoiler assembly 20 is disposed in the liquid storage space 11, that is, part of the structure of the spoiler assembly 20 is disposed in the liquid storage space 11, or the entire structure of the spoiler assembly 20 is disposed in the liquid storage space 11. The spoiler assembly 20 is suitable for driving the urea in the liquid storage space 11 to flow. Alternatively, it can be understood that the spoiler assembly 20 is suitable for disturbing the urea in the liquid storage space 11 to make the urea in the liquid storage space 11 flow.

[0038] It needs to be explained that the crystallization process of urea is related to the orderly aggregation of water molecules around condensation nuclei. When urea is stationary (that is, when urea is not flowing), if the urea temperature reaches the freezing point, water molecules will crystallize into ice around the condensation nuclei, and the condensation process starts from these condensation nuclei and spreads to the entire area. However, if the urea flows, the disturbance caused will have a certain destructive effect on the orderly aggregation of water molecules around the condensation nuclei, making the crystallization process difficult.

[0039] In the present application, the spoiler assembly 20 can drive the flow of urea in the liquid storage space 11 to delay the crystallization of urea, so that the urea can be used normally for a longer time (it can be understood that if the urea crystallizes, the urea cannot flow normally into the urea pipe 61, thereby causing the urea to be unable to be normally used by the vehicle 200), which is beneficial to reducing the exhaust pollution of the vehicle 200 and protecting the environment.

[0040] Therefore, by setting the spoiler component 20, the urea in the liquid storage space 11 can be driven to flow. When the urea flows, it will have a certain destructive effect on the orderly aggregation of water molecules around the condensation nuclei, making the freezing (crystallization) process of the urea difficult, so as to reduce the freezing (crystallization) rate of the urea and extend the time that the urea can be used normally, thereby reducing the exhaust pollution of the vehicle 200.

[0041] It needs to be explained that the normal use of urea can be understood as the normal use of urea by the vehicle 200. The freezing (crystallization) of urea does not mean that the urea can never be used, but it only means that the urea cannot be used when it is in the frozen (crystallized) state. The reason why the normal use time of urea can be extended is because the freezing (crystallization) rate of urea is reduced, making the freezing (crystallization) of urea slow and difficult.

[0042] In some embodiments of the present invention, Figure 1 As shown, the spoiler assembly 20 may include: a guide member 21 and a spoiler pipeline 22, the spoiler pipeline 22 may have a liquid inlet end 221 and a liquid outlet end 222, the liquid inlet end 221 may be located in the liquid storage space 11, and the guide member 21 is suitable for driving the urea in the liquid storage space 11 to flow into the spoiler pipeline 22, so that the urea flows out from the liquid outlet end 222.

[0043] As some optional embodiments of the present application, the guide member 21 can be constructed as but not limited to a gear pump, a vane pump and a plunger pump, etc. As some optional embodiments of the present application, the guide member 21 can be arranged at the liquid inlet end 221 of the spoiler pipeline 22, or the guide member 21 can be arranged at the liquid outlet end 222 of the spoiler pipeline 22, or the guide member 21 can also be arranged between the liquid outlet end 222 and the liquid inlet end 221. As some optional embodiments of the present application, the guide member 21 can be arranged in the liquid storage space 11, or the guide member 21 can also be arranged outside the liquid storage space 11.

[0044] As some optional embodiments of the present application, when there is urea in the liquid storage space 11, the liquid inlet end 221 of the flow disturbance pipeline 22 can be located below the urea liquid surface, that is, when there is urea in the liquid storage space 11, the liquid inlet end 221 of the flow disturbance pipeline 22 is always in direct contact with the urea. As some optional embodiments of the present application, the liquid inlet end 221 of the flow disturbance pipeline 22 can be located at the deepest part of the liquid storage space 11, provided that urea can smoothly pass through the liquid inlet end 221 and enter the flow disturbance pipeline 22.

[0045] As some optional embodiments of the present application, the liquid storage space 11 may have an open end, and the liquid outlet end 222 of the flow-disturbing pipeline 22 may be located outside the liquid storage space 11, and Figure 1 In the Z direction shown, the liquid outlet end 222 of the flow disturbance pipeline 22 can be arranged corresponding to the open end of the liquid storage space 11. In this case, urea can flow out from the liquid outlet end 222 and fall into the liquid storage space 11, and the urea liquid surface can be stirred.

[0046] As some optional embodiments of the present application, Figure 1 As shown, the liquid outlet 222 of the flow disturbance pipeline 22 can be located in the liquid storage space 11. When the urea liquid level is lower than the liquid outlet 222, urea can flow out from the liquid outlet 222 and fall to the urea liquid level, and can stir the urea liquid level. When the urea liquid level is higher than the liquid outlet 222, urea can flow out from the liquid outlet 222 and disturb the urea in the liquid storage space 11.

[0047] As an optional embodiment of the present application, Figure 1As shown, the guide member 21 can be arranged in the liquid storage space 11, and the guide member 21 can be arranged at the liquid inlet end 221 of the flow disturbance pipeline 22, and the liquid outlet end 222 of the flow disturbance pipeline 22 can be arranged in the liquid storage space 11. The guide member 21 can be configured as a submersible pump, and the guide member 21 can be arranged close to the bottom wall of the urea tank body 10. The guide member 21 can drive the urea in the liquid storage space 11 so that the urea enters the flow disturbance pipeline 22 through the liquid inlet end 221 and flows out from the liquid outlet end 222. Such an arrangement can disturb the urea in the liquid storage space 11 and make the urea in the liquid storage space 11 flow, thereby reducing the urea freezing (crystallization) rate and prolonging the time for which the urea can be used normally.

[0048] As some optional embodiments of the present application, the liquid outlet end 222 of the spoiler pipe 22 can be provided with a nozzle, and the nozzle can have multiple liquid outlets, and the diameter of the liquid outlet is smaller than the diameter of the liquid outlet end 222. Such a setting can increase the flow rate of urea flowing out of the liquid outlet end 222 and improve the spoiler effect of the spoiler component 20.

[0049] In some embodiments of the present invention, Figure 1 As shown, the flow disturbance pipeline 22 may have at least one liquid outlet 222. As some optional embodiments of the present application, the number of the liquid outlets 222 may be, but is not limited to, 1, 2, 3, 4, 5, 6, etc. For example, Figure 1 The number of the liquid outlet ends 222 shown is four, and such an arrangement can further improve the turbulence effect of the turbulence component 20, which is beneficial to further reduce the freezing (crystallization) rate of urea.

[0050] In some embodiments of the present invention, Figure 1 As shown, the spoiler assembly 20 may further include: a driving member 23 and a disturbing member 24. The disturbing member 24 may be located in the liquid storage space 11, the driving member 23 may be located in the liquid storage space 11, or the driving member 23 may be located outside the liquid storage space 11. The driving member 23 and the disturbing member 24 may be transmission-connected, and the driving member 23 may drive the disturbing member 24 to move, for example, the driving member 23 may drive the disturbing member 24 to rotate or swing. Such an arrangement may drive the urea in the liquid storage space 11 to flow, and may form a disturbing flow field, thereby reducing the urea freezing (crystallization) rate and prolonging the time for which the urea can be used normally.

[0051] As some optional embodiments of the present application, Figure 1 As shown, the driving member 23 can be arranged in the liquid storage space 11, and the driving member 23 can be configured as but not limited to a stepping motor, a permanent magnet motor, etc. The disturbing member 24 can have a plurality of blades, for example, the disturbing member 24 can have but not limited to 2 blades, 3 blades, 4 blades, etc., Figure 1The number of blades shown is two, and the driving member 23 can drive the disturbance member 24 to rotate, so as to drive the urea in the liquid storage space 11 to flow.

[0052] As some optional embodiments of the present application, the spoiler assembly 20 may include a flow guide 21, a spoiler pipeline 22, or Figure 1 As shown, the spoiler assembly 20 may include a flow guide member 21 , a spoiler pipeline 22 , a driving member 23 , and a spoiler 24 .

[0053] In some embodiments of the present invention, Figure 1 As shown, the urea tank 100 may further include: a heating assembly 30 , the heating assembly 30 may include a first heating element 31 , or the heating assembly 30 may include a second heating element 32 , or the heating assembly 30 may include the first heating element 31 and the second heating element 32 .

[0054] Among them, at least part of the structure of the first heating element 31 can be arranged in the liquid storage space 11, and the first heating element 31 is suitable for communicating with the engine coolant pipeline of the vehicle 200. When the first heating element 31 is communicated with the engine coolant pipeline of the vehicle 200, the engine coolant can flow into the first heating element 31 to exchange heat with urea. It can be understood that after the engine has been running for a certain period of time, the engine coolant has a higher temperature. By connecting the first heating element 31 with the engine coolant pipeline of the vehicle 200, not only can the heat of the engine coolant be used to increase the temperature of the urea to thaw the urea or prevent urea crystallization (freezing), but the urea can also be used to reduce the temperature of the engine coolant.

[0055] As some optional embodiments of the present application, the first heating element 31 can be configured as a pipeline structure, and the pipeline structure can be spirally arranged in the liquid storage space 11, or the pipeline structure can also be serpentine or vertically arranged in the liquid outlet space, or as Figure 1 As shown, a part of the pipeline structure can be arranged in a spiral shape, and another part of the pipeline structure can be arranged vertically. As some optional embodiments of the present application, the first heating element 31 can also be constructed as a heat exchanger structure, the heat exchanger can be arranged hollow, and a plurality of heat exchange fins can be arranged on the outside of the heat exchanger. It should be noted that the first heating element 31 and the engine coolant pipeline need to form a closed loop, that is, the coolant flowing into the first heating element 31 needs to flow back to the engine coolant pipeline.

[0056] As some optional embodiments of the present application, a valve structure may be provided between the first heating element 31 and the engine coolant pipeline of the vehicle 200 , and by controlling the valve, the first heating element 31 and the engine coolant pipeline of the vehicle 200 can be connected or blocked.

[0057] The second heating element 32 may have a heating end 321, at least part of which may be disposed in the liquid storage space 11, and the heating end 321 of the second heating element 32 may generate heat when powered on. As some optional embodiments of the present application, the heating end 321 may be configured as, but not limited to, a resistance wire, an infrared quartz heating tube, etc. In this configuration, the second heating element 32 may be used to heat the urea in the liquid storage space 11 to increase the temperature of the urea, so as to thaw the urea or prevent the urea from crystallizing (freezing).

[0058] As some optional embodiments of the present application, the heating end 321 can be arranged in a spiral shape in the liquid storage space 11, or the heating end 321 can also be arranged in a serpentine shape or vertically in the liquid storage space 11.

[0059] According to the vehicle 200 of the embodiment of the present invention, including the urea tank 100 of the above-mentioned embodiment, the spoiler component 20 is provided to drive the urea in the liquid storage space 11 to flow. When the urea flows, it will have a certain destructive effect on the orderly aggregation of water molecules around the condensation nuclei, making the freezing (crystallization) process of the urea difficult, so as to reduce the freezing (crystallization) rate of the urea and extend the time that the urea can be used normally, thereby reducing the exhaust pollution of the vehicle 200.

[0060] In some embodiments of the present invention, Figure 2 As shown, the vehicle 200 may further include: an energy storage member 40, which may be electrically connected to the spoiler assembly 20, and the energy storage member 40 may supply power to the spoiler assembly 20. Specifically, when the spoiler assembly 20 includes a flow guide member 21, the energy storage member 40 may supply power to the flow guide member 21, when the spoiler assembly 20 includes a driving member 23, the energy storage member 40 may supply power to the driving member 23, and when the spoiler assembly 20 includes a flow guide member 21 and a driving member 23, the energy storage member 40 may supply power to the driving member 23. In this way, the spoiler assembly 20 may be supplied with power through the energy storage member 40 to enable the spoiler assembly 20 to work.

[0061] In some embodiments of the present invention, Figure 2 As shown, the vehicle 200 may further include: a solar panel 50, wherein the solar panel 50 may be disposed on the outer surface of the vehicle 200, for example, the solar panel 50 may be disposed on the roof of the vehicle 200, or the solar panel 50 may be disposed on the outer surface of the front cabin of the vehicle 200. When the vehicle 200 is a truck, the solar panel 50 may be disposed on the top of the cockpit.

[0062] The energy storage component 40 may include a first energy storage component 41, or the energy storage component 40 may include a second energy storage component, or the energy storage component 40 may include a first energy storage component 41 and a second energy storage component. As some optional embodiments of the present application, the first energy storage component 41 may be configured as a solar battery, and the second energy storage component may be configured as a battery of the vehicle 200.

[0063] The first energy storage component 41 may supply power to the spoiler assembly 20, or the second energy storage component may supply power to the spoiler assembly 20, or both the first energy storage component 41 and the second energy storage component may supply power to the spoiler assembly 20. For example, the first energy storage component 41 may supply power to the spoiler assembly 20 before the second energy storage component, and when the first energy storage component 41 is insufficient in power (for example, when the power of the first energy storage component 41 is less than 5%), the second energy storage component supplies power to the spoiler assembly 20.

[0064] As some optional embodiments of the present application, both the first energy storage component 41 and the second energy storage component can supply power to the heating component 30. For example, the first energy storage component 41 can supply power to the heating component 30 before the second energy storage component, and when the power of the first energy storage component 41 is insufficient (for example, when the power of the first energy storage component 41 is less than 5%), the second energy storage component supplies power to the heating component 30.

[0065] The solar panel 50 can charge the first energy storage component 41, and the engine of the vehicle 200 can charge the second energy storage component, wherein the solar panel 50 can convert solar energy into electrical energy, and the first energy storage component 41 can store the electrical energy converted by the solar panel 50. Such a configuration can store the electrical energy converted by the solar panel 50 through the first energy storage component 41 to reduce the fuel consumption of the vehicle 200 (it can be understood that the vehicle 200 needs to consume fuel to generate electricity, so supplementing electrical energy through the solar panel 50 is conducive to reducing the fuel consumption of the vehicle 200).

[0066] As some optional embodiments of the present application, Figure 2 As shown, the vehicle 200 may further include a controller 62 , the solar panel 50 may be electrically connected to the controller 62 , the controller 62 may be electrically connected to the first energy storage component 41 , and the controller 62 may be capable of adjusting the current and voltage output by the solar panel 50 .

[0067] As some optional embodiments of the present application, Figure 2 As shown, the vehicle 200 may also include a power sensor 63 , which may be used to detect and provide feedback on the power level of the first energy storage component 41 .

[0068] Specifically, the electric energy generated by the solar panel 50 can be sent to the first energy storage component 41 for storage. When the first energy storage component 41 is fully charged, the charging of the first energy storage component 41 can be stopped to reduce the probability of the first energy storage component 41 being overcharged, which is beneficial to increase the service life of the first energy storage component 41. As some optional embodiments of the present application, when the first energy storage component 41 is fully charged, the controller 62 can disconnect the charging circuit to stop the solar panel 50 from charging the first energy storage component 41.

[0069] As some optional embodiments of the present application, the controller 62 may be a separately arranged controller 62 , or the controller 62 may be integrated into a vehicle controller.

[0070] In some embodiments of the present invention, Figure 1 As shown, the urea tank 100 may include a urea temperature sensor 64 and an ambient temperature sensor 65. The urea temperature sensor 64 may be electrically connected or communicatively connected to the post-processing controller, and the ambient temperature sensor 65 may be electrically connected or communicatively connected to the post-processing controller. The urea temperature sensor 64 may be used to detect the urea temperature, and the ambient temperature sensor 65 may be used to detect the ambient temperature. The environment may be understood as the environment in which the vehicle 200 is located.

[0071] Figure 3 Flow chart of a control method of a vehicle urea tank according to an embodiment of the present invention, wherein the urea tank may be the urea tank of the above embodiment. The control method comprises:

[0072] S1, detecting the ambient temperature and the urea temperature in the urea tank. The ambient temperature can be detected by an ambient temperature sensor, the urea temperature can be detected by a urea temperature sensor, and the post-processing controller can obtain the ambient temperature detected by the ambient temperature sensor, and the post-processing controller can also obtain the urea temperature detected by the urea temperature sensor.

[0073] S2, determining that the ambient temperature is less than a first preset temperature value and the urea temperature is less than the first preset temperature value, and controlling the spoiler assembly to prevent urea crystallization.

[0074] When the ambient temperature is lower than a first preset temperature value, and the urea temperature is lower than the first preset temperature value, the spoiler component can be controlled to operate. The spoiler component can be the above-mentioned spoiler component. When the spoiler component operates, it can drive the urea in the liquid storage space to flow. When the urea flows, it will have a certain destructive effect on the orderly aggregation of water molecules around the condensation nuclei, making the freezing (crystallization) process of the urea difficult, thereby reducing the freezing (crystallization) rate of the urea and extending the time that the urea can be used normally, thereby reducing the exhaust pollution of the vehicle.

[0075] Among them, the first preset temperature value can be pre-set, and the specific value of the first preset temperature value can be but is not limited to -9 degrees Celsius, -10 degrees Celsius, -11 degrees Celsius, etc.

[0076] Therefore, through the control method of the present application, the freezing (crystallization) process of urea can be made difficult, thereby reducing the freezing (crystallization) rate of urea, extending the time during which urea can be used normally, and helping to reduce vehicle exhaust pollution.

[0077] In some embodiments of the present invention, the control method of the urea tank may further include: determining whether the vehicle meets a preset condition, and if the vehicle meets the preset condition, controlling the spoiler component to stop working. Specifically, if the vehicle meets the preset condition, the spoiler component may be controlled to stop working.

[0078] Among them, determining whether the vehicle meets the preset conditions may include: determining whether the vehicle is started.

[0079] If the vehicle is not started, it can be determined whether the remaining power of the first energy storage component of the vehicle is greater than a preset power value, and it can be determined whether the urea temperature is greater than or equal to a second preset temperature value. If the remaining power of the first energy storage component is less than or equal to the preset power value, or the urea temperature is greater than or equal to the second preset temperature value, the vehicle meets the preset conditions, and the spoiler component can be controlled to stop working.

[0080] If the vehicle is started, it can be determined whether the urea temperature is greater than or equal to the second preset temperature value; if so (i.e., the urea temperature is greater than or equal to the second preset temperature value), the vehicle meets the preset condition, and the spoiler assembly can be controlled to stop working. The second preset temperature value is greater than the first preset temperature value.

[0081] It should be noted that the preset power value and the second preset temperature value can be pre-set, and the specific value of the second preset temperature value can be but is not limited to -4 degrees Celsius, -5 degrees Celsius, -6 degrees Celsius, etc., and the specific value of the preset power value can be 9%, 10%, 11% of the total power of the first energy storage component, etc.

[0082] It should be explained that if the urea temperature is greater than or equal to the second preset temperature value, it means that the urea temperature has increased, and the urea has no tendency to freeze (crystallize) at this time, so the spoiler component can be controlled to stop working.

[0083] If the remaining power of the first energy storage component is less than or equal to the preset power value, it means that the power of the first energy storage component is low at this time. If the spoiler assembly continues to be powered, the first energy storage component is at risk of over-discharge. Since the vehicle is not started at this time, if the spoiler assembly is powered by the second energy storage component, the second energy storage component is at risk of running out of power. If the second energy storage component is run out of power, the vehicle cannot be started. Therefore, when the vehicle is not started, if the remaining power of the first energy storage component is less than or equal to the preset power value, the spoiler assembly can be controlled to stop working.

[0084] Therefore, the operation of the spoiler assembly can be controlled according to whether the vehicle meets the preset conditions, so that the control method of the vehicle urea tank can be made reasonable.

[0085] It should be noted that there is no order of precedence between detecting the ambient temperature and the urea temperature in the urea tank and determining whether the vehicle is started.

[0086] In some embodiments of the present invention, controlling the spoiler component to work may also include: if the vehicle is started, determining whether the ambient temperature and the urea temperature are both less than a third preset temperature value, wherein the third preset temperature value is less than the first preset temperature value; if so (if the ambient temperature and the urea temperature are both less than the third preset temperature value), controlling the heating component to work and controlling the spoiler component to stop working; after the heating component works, if the urea temperature is greater than or equal to the third preset temperature value, the heating component can be controlled to stop working and the spoiler component can be controlled to work.

[0087] It should be noted that the third preset temperature value can be preset, and the specific value of the third preset temperature value can be but is not limited to -19 degrees Celsius, -20 degrees Celsius, -21 degrees Celsius, etc. If the ambient temperature and the urea temperature are both lower than the third preset temperature value, the heating component can be controlled to work and the spoiler component can be controlled to stop working.

[0088] Among them, as some optional embodiments of the present application, the first heating element and the second heating element can be controlled to work together. Or as some optional embodiments of the present application, the second heating element can be controlled to work first, and if the solar panel fails or the first energy storage element is insufficient, the second heating element is controlled to stop working and the first heating element is controlled to work, or as some optional embodiments of the present application, the first heating element can be controlled to work first, and if the first heating element fails, the first heating element is controlled to stop working and the second heating element is controlled to work.

[0089] After the heating component works, if the urea temperature is greater than or equal to the third preset temperature value, it means that under the heating effect of the heating component, the temperature of urea rises. When the urea temperature rises to greater than or equal to the third preset temperature value, the heating component can be controlled to stop working and the spoiler component can be controlled to work. It can be understood that if the ambient temperature and the urea temperature are both less than the third preset temperature value, the probability of urea freezing (crystallization) is very high. At this time, the effect of the spoiler component is very low, and it is possible to cause the spoiler component to be damaged. Therefore, when the ambient temperature and the urea temperature are both less than the third preset temperature value, the spoiler component can be controlled to stop working, and the heating component can be controlled to work to heat the urea. This can reduce the probability of spoiler component damage, which is conducive to improving the service life of the spoiler component, and can make the control method of the vehicle urea tank reasonable.

[0090] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the present invention.

[0091] In the description of the present invention, "first feature" or "second feature" may include one or more of the features.

[0092] In the description of the present invention, "plurality" means two or more.

[0093] In the description of the present invention, a first feature being “on” or “under” a second feature may include that the first and second features are directly in contact with each other, or may include that the first and second features are not in direct contact with each other but are in contact with each other via another feature therebetween.

[0094] In the description of the present invention, “on”, “over” and “above” a first feature from a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0095] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0096] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A urea tank (100) for a vehicle (200), characterized in that: include: A urea tank body (10), wherein the urea tank body (10) has a liquid storage space (11); a spoiler component (20), at least a portion of which is disposed in the liquid storage space (11), and the spoiler component (20) is suitable for driving the flow of urea in the liquid storage space (11); The flow disturbance component (20) comprises: a flow guide member (21) and a flow disturbance pipeline (22); the flow disturbance pipeline (22) has a liquid inlet end (221) and a liquid outlet end (222); the liquid inlet end (221) is located in the liquid storage space (11); the flow guide member (21) is suitable for driving urea in the liquid storage space (11) to flow into the flow disturbance pipeline (22), so that the urea flows out from the liquid outlet end (222).

2. The urea tank (100) of the vehicle (200) according to claim 1, characterized in that: The spoiler assembly (20) further comprises: a driving member (23) and a disturbing member (24); the disturbing member (24) is located in the liquid storage space (11); the driving member (23) is transmission-connected to the disturbing member (24) to drive the disturbing member (24) to move.

3. The urea tank (100) of the vehicle (200) according to claim 1, characterized in that: Also includes: A heating assembly (30), wherein the heating assembly (30) comprises a first heating element (31) and / or a second heating element (32); At least a portion of the first heating element (31) is disposed in the liquid storage space (11), and the first heating element (31) is suitable for communicating with an engine coolant pipeline of the vehicle (200); The second heating element (32) has a heating end (321), and at least a portion of the heating end (321) is disposed in the liquid storage space (11).

4. A vehicle (200), characterized in that: A urea tank (100) comprising a vehicle (200) according to any one of claims 1-3.

5. The vehicle (200) according to claim 4, characterized in that include: An energy storage component (40), wherein the energy storage component (40) is electrically connected to the spoiler component (20), and the energy storage component (40) is suitable for supplying power to the spoiler component (20).

6. The vehicle (200) according to claim 5, characterized in that Also includes: A solar panel (50), wherein the energy storage component (40) comprises a first energy storage component (41) and / or a second energy storage component, wherein the first energy storage component (41) and / or the second energy storage component are both suitable for supplying power to the spoiler component (20), and the solar panel (50) is suitable for charging the first energy storage component (41).

7. A method for controlling a vehicle urea tank, characterized in that: include: Detect the ambient temperature and the urea temperature in the urea tank; It is determined that the ambient temperature is less than a first preset temperature value and the urea temperature is less than the first preset temperature value, and the spoiler assembly is controlled to work to prevent urea crystallization.

8. The method for controlling a vehicle urea tank according to claim 7, characterized in that: Also includes: Determining whether the vehicle meets a preset condition; If the vehicle meets the preset condition, the spoiler component is controlled to stop working.

9. The method for controlling a vehicle urea tank according to claim 8, characterized in that: The determining whether the vehicle meets a preset condition includes: Determining whether the vehicle is started; If the vehicle is not started, determining whether the remaining power of the first energy storage component of the vehicle is greater than a preset power value, and determining whether the urea temperature is greater than or equal to a second preset temperature value; If the remaining power of the first energy storage component is less than or equal to the preset power value or the urea temperature is greater than or equal to the second preset temperature value, the vehicle meets the preset condition; If the vehicle is started, determining whether the urea temperature is greater than or equal to the second preset temperature value; If so, the vehicle meets the preset condition, wherein the second preset temperature value is greater than the first preset temperature value.

10. The method for controlling a vehicle urea tank according to claim 7, characterized in that: After controlling the spoiler component to work, it also includes: If the vehicle is started, determining whether the ambient temperature and the urea temperature are both less than a third preset temperature value, wherein the third preset temperature value is less than the first preset temperature value; If yes, controlling the heating component to work and controlling the spoiler component to stop working; After the heating component is working, if the urea temperature is greater than or equal to the third preset temperature value, the heating component is controlled to stop working and the spoiler component is controlled to work.

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