Protective device, vehicle and control method

Abstract

The invention provides a protection device, a vehicle and a control method, the protection device comprises a drainage assembly, a water level detection part and a controller, and the drainage assembly and the water level detection part are both used for being arranged in an engine compartment of the vehicle; the water pumping end of the drainage assembly is used for stretching into accumulated water in an engine compartment, and the water outlet end of the drainage assembly is located outside the vehicle. The drainage assembly comprises a pump body; the water level detection component is used for detecting water level of accumulated water in an engine compartment; the controller is in communication connection with the water level detection component so that the controller can obtain water level information detected by the water level detection component and control whether the pump body is started or not according to the water level information detected by the water level detection component. By means of the protection device, it can be guaranteed that the vehicle safely passes through the waterlogged road section, the engine is prevented from being damaged due to the fact that water enters the air inlet, and then the engine is protected.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and more specifically, to a protective device, a vehicle, and a control method. Background Technology

[0002] When driving in heavy rain or driving through flooded areas, the engine may be submerged. If the water level is too high and covers the engine's air intake, the car may stall. Prolonged immersion in water can also damage the engine.

[0003] The main reasons why a car stalls or is damaged after being driven through water are as follows:

[0004] 1. The water depth exceeds the height of the air intake, and water enters the engine through the air intake, disrupting the engine's normal air intake process;

[0005] 2. When the engine is running at low speed, water can backflow into the cylinder through the exhaust pipe if the exhaust pressure is insufficient. Once the water enters, it occupies a certain space in the cylinder, hindering the normal discharge of exhaust gas. The exhaust pressure will gradually increase, causing the engine to stall due to excessive exhaust pressure, thus causing the car to turn off and potentially damaging the engine.

[0006] 3. If the water level is higher than the exhaust manifold after the engine is turned off, water can enter the cylinder through an open exhaust valve, causing engine water ingress malfunction.

[0007] 4. If water enters the engine, sewage and other impurities will also mix into the engine oil, causing the engine oil to deteriorate. As a result, the engine oil will not be able to perform its functions of lubrication, cooling, sealing, and corrosion prevention, reducing engine performance and ultimately damaging the engine.

[0008] Existing car flood protection devices use an airbag structure, and their main purpose is to prevent personal safety from being threatened when the car is submerged in water. They are mainly used as rescue devices and measures when the car is submerged in too much water.

[0009] These types of airbag devices offer limited direct protection against engine immersion in water and cannot fundamentally solve the problem of water entering the engine when a vehicle passes through flooded sections of road.

[0010] The structure of this type of airbag device is relatively complex. The airbag requires multiple components such as an air pump, distributor, airbag box and airbag fixing plate to work together to achieve the effect of preventing water immersion, and it occupies a lot of space under the vehicle.

[0011] In practical applications, these airbag devices may fail to function properly when wading due to component damage, improper installation, or system failure. Furthermore, the maintenance costs and operating costs of these airbag devices are relatively high. Summary of the Invention

[0012] This application provides a protective device, a vehicle, and a control method to at least solve the technical problem in the related art that vehicles are prone to stalling when passing through flooded road sections.

[0013] According to one aspect of this application, a protective device is provided, comprising: a drainage assembly for installation in the engine compartment of a vehicle; a pumping end of the drainage assembly for extending into accumulated water in the engine compartment, and an outlet end of the drainage assembly located outside the vehicle; the drainage assembly including a pump body; a water level detection component for installation in the engine compartment to detect the water level in the engine compartment; and a controller communicatively connected to the water level detection component to control whether the pump body is activated based on the water level information detected by the water level detection component.

[0014] Optionally, the drainage assembly also includes a pumping pipe, and the pump body has an inlet; one end of the pumping pipe is connected to and communicates with the inlet, and the other end of the pumping pipe is the pumping end of the drainage assembly.

[0015] Optionally, the drainage assembly also includes a drain pipe, and the pump body has an outlet; one end of the drain pipe is connected to and communicates with the outlet, and the other end of the drain pipe is the outlet end of the drainage assembly.

[0016] Alternatively, the water pump pipe can be a flexible hose.

[0017] Alternatively, the drain pipe can be a flexible hose.

[0018] Optionally, the pumping end of the drainage component is located at a preset height, and the pumping port of the drainage component is set downwards.

[0019] Optionally, the protective device also includes a filter element disposed at the pumping end of the drainage assembly to filter the accumulated water before it enters the pump body.

[0020] Optionally, both the water level detection component and the controller are mounted on the pump body, and the signal line between the water level detection component and the controller is located inside the pump body.

[0021] Optionally, the protective device also includes a power supply unit, with the pump body, water level detection component, and controller all electrically connected to the power supply unit so that the power supply unit supplies power to the pump body, water level detection component, and controller.

[0022] Optionally, the water level detection component includes a detection unit for transmitting signals to the water surface to detect the water level.

[0023] According to another aspect of this application, a vehicle is provided that includes the aforementioned protective device.

[0024] According to another aspect of this application, a control method is provided, which is applicable to the above-mentioned protective device or the above-mentioned vehicle; the control method includes: controlling the water level detection component of the protective device to detect the water level in the engine compartment; controlling the controller of the protective device to obtain the water level information detected by the water level detection component, and controlling the controller to control whether the pump body is started and control the operating power of the pump body according to the water level information detected by the water level detection component.

[0025] Optionally, the control method includes:

[0026] When the water level detected by the water level detection component is lower than the first preset water level, the controller controls the pump body to stop running;

[0027] When the water level detected by the water level detection component is greater than or equal to the first preset water level and less than the second preset water level, the controller controls the pump body to operate at the first power.

[0028] When the water level detected by the water level detection component is greater than or equal to the second preset water level and less than the third preset water level, the controller controls the pump body to operate at the second power; the second power is greater than the first power.

[0029] When the water level detected by the water level detection component is greater than or equal to the third preset water level, the controller controls the pump body to operate at the third power; the third power is greater than the second power.

[0030] In this embodiment, the protective device includes a drainage assembly, a water level detection component, and a controller. Both the drainage assembly and the water level detection component are installed inside the engine compartment of the vehicle. The pumping end of the drainage assembly is used to extend into the accumulated water inside the engine compartment, and the outlet end of the drainage assembly is located outside the vehicle. The drainage assembly includes a pump body. The water level detection component is used to detect the water level inside the engine compartment. The controller is communicatively connected to the water level detection component so that the controller can obtain the water level information detected by the water level detection component and control whether the pump body is started based on the water level information detected by the water level detection component.

[0031] When the water level detection component of the protective device detects that the water level has reached or exceeded the low water level warning line and sends a start signal, which is transmitted to the controller through the signal line, the pump body starts to operate at low power; if the water level continues to rise and reaches or exceeds the medium water level warning line, the water level detection component will send an upgrade signal to the controller, and the pump body will start to operate at medium power; if the water level continues to rise until it reaches or exceeds the high water level warning line, the water level detection component will send an upgrade signal to the controller, and the pump body will start to operate at maximum power.

[0032] When the water level drops below the high water level warning line, the water level detection component will send a downgrade signal, which will be transmitted to the controller through the signal line, and the operating power of the pump body will be reduced to medium power; if the water level drops below the medium water level warning line, the water level detection component will send a downgrade signal to the controller, and the pump body will operate at low power.

[0033] When a vehicle passes through a flooded section of road, the water level detection unit will detect that the water level has dropped below the warning line. At this point, the water level detection unit will send a stop signal to the controller. Once the controller receives the stop signal from the water level detection unit, it will stop the pump from operating.

[0034] During operation, the protective device ensures that the water level will not exceed the warning line, thus greatly reducing the probability of the vehicle stalling when passing through flooded sections, ensuring safe passage through flooded areas, and optimizing the driving experience. Furthermore, it can prevent engine damage caused by water entering the air intake, thereby protecting the engine. Attached Figure Description

[0035] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0036] Figure 1 A schematic diagram of the protective device according to this application is shown;

[0037] Figure 2 A schematic diagram of the pump body of the protective device according to this application is shown;

[0038] Figure 3 A flowchart of a control method for a protective device according to one embodiment of this application is shown.

[0039] The above figures include the following reference numerals:

[0040] 10. Pump body; 101. Housing; 11. Inlet; 12. Outlet; 13. Mounting hole; 14. Detection interface; 15. Control interface; 16. Signal line;

[0041] 20. Water level detection component; 30. Controller; 40. Pumping pipe; 50. Drainage pipe; 60. Power supply component. Detailed Implementation

[0042] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0043] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0044] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0045] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0046] According to an embodiment of this application, a structural embodiment of a protective device is provided; please refer to [reference needed]. Figure 1 and Figure 2 The protective device includes a drainage assembly, a water level detection component 20, and a controller 30. Both the drainage assembly and the water level detection component 20 are installed inside the engine compartment of the vehicle. The pumping end of the drainage assembly is used to reach into the accumulated water inside the engine compartment, and the outlet end of the drainage assembly is located outside the vehicle. The drainage assembly includes a pump body 10. The water level detection component 20 is used to detect the water level inside the engine compartment. The controller 30 is communicatively connected to the water level detection component 20 so that the controller 30 can obtain the water level information detected by the water level detection component 20 and control whether the pump body 10 is started based on the water level information detected by the water level detection component 20.

[0047] When the pump body 10 is started, the drainage assembly drains the water accumulated in the engine compartment to the outside of the vehicle.

[0048] The function of the water level detection component 20 is to detect whether the water level in the engine compartment exceeds the warning line and output a signal to the controller 30. The function of the controller 30 is to receive the signal output by the water level detection component 20 and control the pump body 10 to start and stop working.

[0049] Optionally, the controller 30 is located in the engine compartment.

[0050] Specifically, the protective device of this application is a device for preventing engine immersion in water.

[0051] When a vehicle briefly passes through a flooded area, the water may briefly submerge the engine, causing the car to stall and potentially damaging the engine. The protective device described in this application is equipped with a drainage system that continuously removes water from near the engine's air intake, ensuring the engine does not stall when passing through flooded areas. This guarantees the vehicle's safe passage through flooded areas and protects the engine from water damage.

[0052] When the water level detection component 20 accurately detects that the water level exceeds the preset warning line, it sends a signal to the controller 30. Upon receiving the signal, the controller 30 controls the pump body 10 to start operating. The pump body 10 quickly pumps away the water exceeding the warning line through the suction end of the drainage component and discharges the water outside the vehicle through the outlet end of the drainage component. During the continuous operation of the pump body 10, it ensures that the water level in the engine compartment never exceeds the warning line, thus allowing the vehicle to safely pass through flooded sections and protecting the engine from damage by water to the greatest extent.

[0053] In this application, the drainage assembly also includes a pumping pipe 40, and the pump body 10 has a water inlet 11; one end of the pumping pipe 40 is connected to and communicates with the water inlet 11, and the other end of the pumping pipe 40 is the pumping end of the drainage assembly.

[0054] Optionally, the water pump 40 is a flexible hose.

[0055] Optionally, the water suction end of the drainage component is located at a preset height, and the water suction port of the drainage component is set downwards; when the water in the engine compartment reaches or exceeds the preset height, the drainage component can drain the water in the engine compartment. The preset height can be set according to the actual situation of the vehicle.

[0056] It should be noted that a downward-facing drain port is the preferred configuration for the drainage component. The drain port can also be positioned to the side, meaning the plane containing the drain port can be parallel to the vertical plane; alternatively, the drain port can be positioned diagonally downwards. The specific configuration is not limited as long as the drain port can draw water.

[0057] In this application, the drainage assembly also includes a drain pipe 50, and the pump body 10 has a water outlet 12; one end of the drain pipe 50 is connected to and communicates with the water outlet 12, and the other end of the drain pipe 50 is the water outlet end of the drainage assembly.

[0058] Optionally, the drain pipe 50 is a flexible hose. Both the pump pipe 40 and the drain pipe 50 are flexible hoses, which makes the pipeline more flexible during installation and use, and easier to adapt to different installation environments, so as to ensure smooth water flow in and out of the pump body 10.

[0059] In this application, the protective device also includes a filter element, which is installed at the pumping end of the drainage assembly to filter the accumulated water before it enters the pump body 10, thereby filtering out impurities in the accumulated water and preventing them from entering the pump body 10. This not only extends the service life of the pump body 10 but also improves its operating efficiency.

[0060] Optionally, the filter element includes a filter screen.

[0061] In this application, both the water level detection component 20 and the controller 30 are mounted on the pump body 10, and the signal line between the water level detection component 20 and the controller 30 is located inside the pump body 10.

[0062] Specifically, the signal line between the water level detection component 20 and the controller 30 is located inside the housing 101 of the pump body 10. Figure 2 Signal line 16 is the signal line between the water level detection component 20 and the controller 30. This signal line can transmit signals, so that the automatic start and stop function of the pump body 10 can be achieved through signal transmission inside the pump body 10 without the need for external input signal control.

[0063] Specifically, a detection mounting position is provided on the pump body 10, and the water level detection component 20 is installed at the detection mounting position on the pump body 10.

[0064] Specifically, the detection installation position is set to detection interface 14, that is, detection interface 14 is the interface of the water level detection component.

[0065] Specifically, the detection mounting position is set on the housing 101 of the pump body 10.

[0066] Specifically, a control mounting position is provided on the pump body 10, and the controller 30 is located at the control mounting position on the pump body 10.

[0067] Specifically, the control mounting position is set to control interface 15, that is, control interface 15 is the controller interface.

[0068] Specifically, the control mounting position is located on the housing 101 of the pump body 10.

[0069] Optionally, the detection mounting position is located at the lower part of the pump body 10, and the control mounting position is located at the upper part of the pump body 10.

[0070] In this application, optionally, the water level detection component 20 is a water level sensor.

[0071] Optionally, in this application, the water level detection component 20 includes a detection unit for transmitting a signal to the water surface to detect the water level.

[0072] In this application, the protective device also includes a power supply unit 60. The pump body 10, the water level detection component 20 and the controller 30 are all electrically connected to the power supply unit 60 so that the power supply unit 60 supplies power to the pump body 10, the water level detection component 20 and the controller 30.

[0073] Optionally, the power supply unit 60 is directly connected to the controller 30.

[0074] Optionally, in this application, the water level detection component 20 and the pump body 10 are snapped together. Specifically, the pump body 10 is provided with a slot, and the water level detection component 20 is provided with a snap-fit ​​part, which is snapped into the slot.

[0075] Optionally, the snap-fit ​​part slides into or out of the snap-fit ​​groove to connect or disconnect the water level detection component 20 and the pump body 10.

[0076] After the water intake pipe 40, drain pipe 50, water level detection component 20, and controller 30 are assembled with the pump body 10, the power supply component 60 is then connected to form the protective device. To optimize the layout of the entire protective device within the vehicle, several sub-components are integrated and assembled together to form a fully functional, independently operating system. This significantly reduces the space occupied by the entire protective device, simplifies its placement, and allows for more flexible arrangement within the vehicle.

[0077] In this application, the pump body 10 is provided with an assembly position so that the pump body 10 is connected and fixed to the vehicle body through the assembly position; the connection between the pump body 10 and the vehicle body is detachable, that is, the protective device is a detachable structure.

[0078] Optionally, a mounting hole 13 is provided at the assembly position, through which fasteners are inserted to securely connect the pump body 10 to the vehicle body. For example, the mounting hole 13 is a through hole. This facilitates the installation of the protective device and allows for quick assembly and disassembly, saving time during maintenance or replacement. During the overall vehicle design process, only suitable installation space and location need to be reserved; users can later choose whether to install the protective device based on specific needs.

[0079] Optionally, the pump body 10 is provided with multiple mounting positions.

[0080] Alternatively, the fastener may be a bolt or a screw.

[0081] Optionally, mounting hole 13 adopts a standardized design to be compatible with national standard bolts.

[0082] This application also provides a vehicle that includes the aforementioned protective device.

[0083] The protective device described in this application is adaptable to various vehicle models. The engine locations differ significantly across vehicle types, necessitating a flexible response strategy from the protective device. Therefore, different water level warning ranges can be precisely set based on the height of the engine air intake for different vehicle models. This range typically has two key values: a maximum point and a minimum point. This water level warning range can be defined during the design and development phase using fixed points on the vehicle body; alternatively, it can be defined using software during later vehicle tuning processes, thereby better ensuring engine safety.

[0084] The protective device of this application also has the function of automatically adjusting the operating power of the pump body 10.

[0085] This application also provides a control method applicable to the aforementioned protective device or the aforementioned vehicle, that is, the aforementioned protective device or the aforementioned vehicle can be used to execute the control method.

[0086] The control method includes: the water level detection component 20 of the control protection device detects the water level in the engine compartment in real time; the controller 30 of the control protection device obtains the water level information detected by the water level detection component 20, and controls the controller 30 to control whether the pump body 10 is started and control the operating power of the pump body 10 according to the water level information detected by the water level detection component 20.

[0087] Specifically, when the water level detected by the water level detection component 20 is lower than the first preset water level, the controller 30 controls the pump body 10 to stop running.

[0088] When the water level detected by the water level detection component 20 is greater than or equal to the first preset water level and less than the second preset water level, the controller 30 controls the pump body 10 to operate at the first power; the second preset water level is greater than the first preset water level.

[0089] When the water level detected by the water level detection component 20 is greater than or equal to the second preset water level and less than the third preset water level, the controller 30 controls the pump body 10 to operate at the second power; when the third preset water level is greater than the second preset water level, the second power is greater than the first power.

[0090] When the water level detected by the water level detection component 20 is greater than or equal to the third preset water level, the controller 30 controls the pump body 10 to operate at the third power; the third power is greater than the second power.

[0091] Specifically, the first preset water level is the low water level warning line, the second preset water level is the medium water level warning line, and the third preset water level is the high water level warning line.

[0092] In the specific implementation process, such as Figure 3 As shown, when a vehicle passes through a flooded section of road, the accumulated water will enter the engine compartment of the car through openings such as the air intake grille and chassis. When the water level detection component 20 of the protective device detects that the water level has reached or exceeded the low water level warning line and sends a start signal, it is transmitted to the controller 30 through the signal line 16, and the pump body 10 starts to operate at low power; if the water level continues to rise and reaches or exceeds the medium water level warning line, the water level detection component 20 will send an upgrade signal to the controller 30, and the pump body 10 will start to operate at medium power; if the water level continues to rise until it reaches or exceeds the high water level warning line, the water level detection component 20 will send an upgrade signal to the controller 30, and the pump body 10 will start to operate at maximum power.

[0093] When the water level drops below the high water level warning line, the water level detection component 20 will send a downgrade signal, which will be transmitted to the controller 30 through the signal line 16, and the operating power of the pump body 10 will be reduced to medium power; if the water level drops below the medium water level warning line, the water level detection component 20 will send a downgrade signal to the controller 30, and the pump body 10 will be reduced to low power operation.

[0094] When a vehicle passes through a flooded section of road, the water level detection unit 20 will detect that the water level has dropped below the warning line. At this time, the water level detection unit 20 will send a stop signal to the controller 30. When the controller 30 receives the stop signal transmitted by the water level detection unit 20, it will control the pump body 10 to stop working.

[0095] During operation, the protective device ensures that the water level will not exceed the warning line, thus greatly reducing the probability of the vehicle stalling when passing through flooded sections, ensuring safe passage through flooded areas, and optimizing the driving experience. Furthermore, it can prevent engine damage caused by water entering the air intake, thereby protecting the engine.

[0096] The protective device not only has the function of automatically activating after the water level detection component 20 detects that the water level has reached or exceeded the water level warning line, but it can also add a manual activation function to cope with more practical scenarios.

[0097] Application scenarios for manually enabling the feature include:

[0098] 1. If a vehicle is parked in a flooded area, but the water level has not yet reached or exceeded the warning line, the user can manually activate the protective device as needed. This effectively protects the engine block from prolonged immersion in water, significantly reducing the probability of rust on engine parts and extending the engine's lifespan.

[0099] 2. The manual activation function can also be applied to the maintenance of the protective device. The protective device can be maintained periodically, during which the pump body 10 can be self-cleaned. Specifically, the protective device is manually activated, and cleaning fluid is placed in the water suction pipe 40. During the operation of the protective device, the cleaning fluid can remove impurities remaining in the pump body 10. Regular self-cleaning maintenance can significantly improve the operating efficiency of the protective device, protect the internal structure of the pump body 10, reduce damage to the pump body 10 caused by the accumulation of impurities, and thus extend the overall service life of the protective device, providing more reliable protection for vehicle wading safety.

[0100] For different models of pump body 10, the maximum wading height and the longest operating time are precisely designed to ensure that the protective device will not be damaged due to overload operation during actual use, thereby ensuring the stability and reliability of the protective device and providing continuous and effective protection for the engine safety.

[0101] The protective device of this application has the following advantages: 1. It can improve the vehicle's wading ability; when the vehicle is driving through a flooded section, it can protect the car engine from water damage, allowing the vehicle to pass through the flooded area smoothly and safely; 2. The interface of the protective device adopts a standardized design, which makes maintenance and replacement more convenient, improves maintenance convenience, and saves maintenance time and costs; 3. It has high adaptability and can adapt to different wading depth requirements; for example, in the south, where heavy rain is frequent, the wading sections encountered by vehicles are often deeper, and the protective device can select pump bodies 10 with different displacements and power to adapt to different wading depth requirements.

[0102] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. The device embodiments described above are merely illustrative; for example, the division of units can be a logical functional division, and in actual implementation, there may be other division methods. For instance, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the displayed or discussed mutual coupling, direct coupling, or communication connection may be through some interfaces; the indirect coupling or communication connection between units or modules may be electrical or other forms.

[0103] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0104] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0105] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as a USB flash drive, read-only memory (ROM), random access memory (RAM), portable hard drive, magnetic disk, or optical disk.

[0106] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0107] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A protective device, characterized in that, include: A drainage assembly is provided for installation in the engine compartment of a vehicle; the pumping end of the drainage assembly is used to extend into the accumulated water in the engine compartment, and the outlet end of the drainage assembly is located outside the vehicle; the drainage assembly includes a pump body (10). A water level detection component (20) is installed in the engine compartment to detect the water level of the water accumulated in the engine compartment; The controller (30) is communicatively connected to the water level detection component (20) to control whether the pump body (10) is started based on the water level information detected by the water level detection component (20).

2. The protective device according to claim 1, characterized in that, The drainage assembly also includes: A water-drawing pipe (40) is provided, and the pump body (10) has a water inlet (11); one end of the water-drawing pipe (40) is connected to and communicates with the water inlet (11), and the other end of the water-drawing pipe (40) is the water-drawing end of the drainage assembly; and / or The pump body (10) has a drain pipe (50) and an outlet (12); one end of the drain pipe (50) is connected to and communicates with the outlet (12), and the other end of the drain pipe (50) is the outlet end of the drainage assembly.

3. The protective device according to claim 1, characterized in that, The drainage assembly also includes: A water-drawing pipe (40) is provided, and the pump body (10) has a water inlet (11); one end of the water-drawing pipe (40) is connected to and communicates with the water inlet (11), and the other end of the water-drawing pipe (40) is the water-drawing end of the drainage assembly; the water-drawing pipe (40) is a flexible hose; and / or The pump body (10) has a drain pipe (50) and an outlet (12); one end of the drain pipe (50) is connected to and communicates with the outlet (12), and the other end of the drain pipe (50) is the outlet end of the drainage assembly; the drain pipe (50) is a flexible hose.

4. The protective device according to claim 1, characterized in that, The pumping end of the drainage component is located at a preset height, and the pumping port of the drainage component is set downwards; and / or The protective device also includes a filter element disposed at the pumping end of the drainage assembly to filter the accumulated water before it enters the pump body (10).

5. The protective device according to claim 1, characterized in that, The water level detection component (20) and the controller (30) are both located on the pump body (10), and the signal line between the water level detection component (20) and the controller (30) is located inside the pump body (10).

6. The protective device according to claim 1, characterized in that, The protective device also includes a power supply unit (60), and the pump body (10), the water level detection component (20) and the controller (30) are all electrically connected to the power supply unit (60) so that the power supply unit (60) supplies power to the pump body (10), the water level detection component (20) and the controller (30).

7. The protective device according to claim 1, characterized in that, The water level detection component (20) includes a detection unit for transmitting signals to the water surface to detect the water level.

8. A vehicle, characterized in that, Includes the protective device as described in any one of claims 1 to 7.

9. A control method, characterized in that, The protective device is applicable to any one of claims 1 to 7; the control method includes: The water level detection component (20) of the control device detects the water level in the engine compartment; The controller (30) controlling the protective device obtains the water level information detected by the water level detection component (20), and controls the controller (30) to control whether the pump body (10) is started and control the operating power of the pump body (10) according to the water level information detected by the water level detection component (20).

10. The control method according to claim 9, characterized in that, The control method includes: When the water level detected by the water level detection component (20) is lower than the first preset water level, the controller (30) controls the pump body (10) to stop running; When the water level detected by the water level detection component (20) is greater than or equal to the first preset water level and less than the second preset water level, the controller (30) controls the pump body (10) to operate at the first power. When the water level detected by the water level detection component (20) is greater than or equal to the second preset water level and less than the third preset water level, the controller (30) controls the pump body (10) to operate at a second power; the second power is greater than the first power; When the water level detected by the water level detection component (20) is greater than or equal to the third preset water level, the controller (30) controls the pump body (10) to operate at a third power; the third power is greater than the second power.

Images