Control method and device for opening and closing of shutter, vehicle and storage medium

Abstract

The application provides a grille opening and closing control method and device, a vehicle and a storage medium. The grille opening and closing control method comprises the following steps: acquiring the wading depth of the vehicle; when the wading depth of the vehicle is greater than a preset depth threshold, acquiring a first current vehicle speed and a first theoretical grille opening degree corresponding to the first current vehicle speed and / or the wading depth; and then controlling the opening degree of the grille to the first theoretical grille opening degree. The grille opening and closing control method adjusts the opening degree of the grille when the wading depth exceeds the preset depth threshold, so that the vehicle has high wading passability, the engine compartment can meet the requirements of heat preservation and wind resistance reduction, and the use performance of the vehicle is improved.

Description

Technical Field

[0001] This invention relates to the field of vehicle technology, and in particular to a control method for opening and closing a grille. The invention also relates to a control device that implements the control method for opening and closing the grille, and a vehicle- and computer-readable storage medium. Background Technology

[0002] The underbody skid plate is a protective device installed at the bottom of the vehicle's engine. Its main functions are to prevent foreign objects from entering the engine, prevent sand and gravel from hitting the engine, improve the smoothness of the chassis, reduce air resistance, improve fuel economy, increase range, and enhance the vehicle's aesthetics and brand value.

[0003] However, for large components like the engine compartment underbody protection plate, the pressure is significant when a vehicle is wading through water, making it prone to detachment and causing related after-sales issues. To avoid this problem, holes are often added to the engine compartment underbody protection plate in the later stages of vehicle development for models with poor wading capabilities to increase drainage. However, this method weakens the wind resistance reduction effect, reduces the vehicle's ability to heat up and retain heat in winter, and also affects the vehicle's aesthetics. Summary of the Invention

[0004] In view of this, the present invention aims to propose a control method for opening and closing the grille, so as to open and close the openings on the lower guard plate of the engine compartment as needed, thereby achieving the purpose of comprehensively accommodating the vehicle's wading passability and engine compartment insulation.

[0005] To achieve the above objectives, the technical solution of the present invention is implemented as follows:

[0006] A method for controlling the opening and closing of a grid plate, comprising:

[0007] Obtain the vehicle's wading depth;

[0008] When the vehicle's wading depth is greater than a preset depth threshold, obtain the first current vehicle speed and the first theoretical grid opening corresponding to the first current vehicle speed and / or the wading depth;

[0009] The opening degree of the control grid is adjusted to the first theoretical grid opening degree.

[0010] Furthermore, before obtaining the wading depth of the vehicle, the method further includes:

[0011] Obtain the ambient temperature;

[0012] When the ambient temperature is lower than a preset ambient temperature threshold, the control grid remains closed.

[0013] Furthermore, before obtaining the ambient temperature, the method further includes:

[0014] The self-test of the gate switch was successful.

[0015] Furthermore, before obtaining the wading depth of the vehicle, the method further includes:

[0016] Obtain the ambient temperature;

[0017] When the ambient temperature is greater than or equal to a preset ambient temperature threshold, the cabin temperature and the temperature of the components inside the cabin are obtained;

[0018] When the engine compartment temperature is greater than a preset engine compartment temperature threshold, or when the temperature of components inside the engine compartment is greater than a preset component temperature threshold, a second current vehicle speed and a second theoretical grid opening corresponding to the second current vehicle speed are obtained.

[0019] The opening degree of the control grid is adjusted to the second theoretical grid opening degree.

[0020] Furthermore, when the cabin temperature is less than or equal to a preset cabin temperature threshold, and when the temperature of the components inside the cabin is less than or equal to a preset component temperature threshold, the control grid remains closed.

[0021] Furthermore, before obtaining the ambient temperature, the method further includes:

[0022] The self-test of the gate switch was successful.

[0023] Furthermore, when the vehicle's wading depth is less than or equal to a preset depth threshold, the control gate maintains its current opening.

[0024] The preset depth threshold is the height of the lower hull panel above the ground.

[0025] Compared with the prior art, the present invention has the following advantages:

[0026] The control method for opening and closing the grille of the present invention can open the grille to drain water when the vehicle is wading through water, and close the grille to maintain the temperature inside the engine compartment when the vehicle is not wading through water. The method controls the opening degree of the grille when the wading depth exceeds a preset depth threshold, so that the vehicle has a high wading passability, and also allows the engine compartment to take into account the requirements of heat preservation and wind resistance reduction, thereby improving the performance of the vehicle.

[0027] Furthermore, controlling the opening and closing status of the grille based on ambient temperature allows for better determination of its current open / closed state and more precise control over the frequency of opening and closing, thus saving energy and enabling the vehicle to better adapt to different environments. Before acquiring the ambient temperature, the grille performs a self-check to ensure smooth opening and closing.

[0028] In addition, controlling the opening of the grille based on the engine compartment temperature, the temperature of the components inside the engine compartment, and the vehicle speed helps to ensure that the engine compartment and the components inside the engine compartment operate at a suitable temperature, meeting the heat dissipation requirements while ensuring that the vehicle runs with less wind resistance and can save energy.

[0029] Another object of the present invention is to provide a control device comprising an acquisition unit and a control unit connected to said acquisition unit, wherein:

[0030] The acquisition unit is used to acquire the wading depth of the vehicle; and when the wading depth of the vehicle is greater than a preset depth threshold, it acquires the first current vehicle speed and the first theoretical grid opening corresponding to the first current vehicle speed and / or the wading depth.

[0031] The control unit is used to control the opening degree of the grid plate to the first theoretical grid plate opening degree.

[0032] Another object of the present invention is to provide a vehicle including a vehicle controller capable of performing the gate opening and closing control method as described above.

[0033] Another object of the present invention is a computer-readable storage medium for storing a computer program that, when executed by a processor, enables the control method for opening and closing the gate as described above.

[0034] The control device, vehicle, and computer-readable storage medium described in this invention have the same beneficial effects as the aforementioned control method for opening and closing the gate, compared to the prior art, and will not be repeated here. Attached Figure Description

[0035] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0036] Figure 1 This is a flowchart of the control method for opening and closing the grid plate according to an embodiment of the present invention;

[0037] Figure 2 This is another flowchart of the control method for opening and closing the grid plate according to an embodiment of the present invention;

[0038] Figure 3 This is another flowchart of the control method for opening and closing the grid plate according to an embodiment of the present invention;

[0039] Figure 4 This is a schematic block diagram of the control device described in an embodiment of the present invention;

[0040] Figure 5This is a schematic diagram of the structure of the lower cabin shroud according to an embodiment of the present invention.

[0041] Explanation of reference numerals in the attached figures:

[0042] 1. Acquisition unit; 2. Control unit; 3. Underbody panel; 4. Grid plate. Detailed Implementation

[0043] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0044] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," and "back," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and for 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. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0045] Furthermore, in the description of this invention, unless otherwise explicitly defined, the terms "installation," "connection," "linking," and "connector" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention in light of the specific circumstances.

[0046] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0047] This embodiment relates to a control method for opening and closing a grille. By actively controlling the opening degree of the grille 4 at the opening on the lower camber 3 of the engine compartment, the method achieves a comprehensive balance between vehicle wading ability, engine compartment heat preservation and heat dissipation, and wind resistance reduction.

[0048] To better understand the control method for opening and closing the grid plate in this embodiment, please refer to... Figure 5 The structure of the lower naval liner 3 is briefly described below. The lower naval liner 3 has openings, and multiple grilles 4 are installed at the openings. These grilles 4 can be combined to seal the openings.

[0049] It should be noted that the number of grid plates 4 is not limited to... Figure 5 The four shown can be replaced with other quantities, such as two, three, or five. The arrangement of the grilles 4 can be along the length or width of the vehicle. The number and position of the openings can also be adjusted according to actual needs.

[0050] The grille 4 is generally mounted on the lower nacelle shroud 3 via a rotating shaft. The drive mechanism for the grille 4 can be multiple or a single mechanism. For example, the drive mechanism for the grille 4 can be a small or micro motor, which directly or through a power transmission mechanism drives the rotating shafts of one or more grilles 4 to rotate. The power transmission mechanism can be, for example, a linkage mechanism. In other words, one motor can drive one grille 4 to rotate, or one motor can drive multiple grilles 4 to rotate; both are possible.

[0051] Based on the above design concepts and the structural description of the lower nacelle shroud 3, an exemplary structure of the control method for opening and closing the grille in this embodiment is as follows: Figure 1 As shown, it mainly includes the following steps.

[0052] S101. Obtain the wading depth of the vehicle.

[0053] It should be noted that the wading depth of a vehicle can be monitored, for example, by radar or cameras installed on the vehicle. Specifically, in conjunction with... Figure 3 As shown, data acquired by radar or camera can be transmitted to acquisition unit 1. Control unit 2 can determine whether the vehicle has been submerged based on the data acquired by acquisition unit 1. When control unit 2 determines that the vehicle has not been submerged, it can control the gate 4 to remain closed. Specifically, control unit 2 sends corresponding control information to the gate 4 drive mechanism.

[0054] When the control unit 2 determines that the vehicle has waded through water, it compares the wading depth with a preset depth threshold, which can be, for example, the height of the skid plate, and then executes step S102. It is understood that the preset depth threshold can be set to other suitable values ​​besides the height of the skid plate.

[0055] S102. When the vehicle's wading depth is greater than a preset depth threshold, obtain the first current vehicle speed and the first theoretical slat opening corresponding to the first current vehicle speed and / or wading depth.

[0056] It should be noted that when the vehicle's wading depth is greater than a preset depth threshold, the control unit 2 can obtain the first current vehicle speed and the first theoretical slat opening corresponding to the first current vehicle speed, or it can obtain the first theoretical slat opening corresponding to the wading depth, or it can obtain the first theoretical slat opening corresponding to the first current vehicle speed and the wading depth.

[0057] Preferably, as shown in Table 1, at a constant vehicle speed, the first theoretical slat opening can be set to different values ​​depending on the wading depth. However, it should be noted that the values ​​in Table 1 are only for illustrative purposes, and the specific value of the first theoretical slat opening needs to be determined by calibration tests or discussions.

[0058] The values ​​in the second row of Table 1 represent wading depths that are greater than the depth of the guard plate. When setting these values, they can also be converted to the actual wading depth. It is also possible to determine the opening of the first theoretical grid plate based on the actual wading depth.

[0059] Table 1:

[0060]

[0061] It should be noted that, as shown in Table 1, as the first current vehicle speed gradually increases, the opening of the first theoretical grille also gradually increases. This design helps prevent the engine compartment underbody protection plate 3 from detaching. The reason is that when a vehicle is wading through water, the engine compartment underbody protection plate 3 experiences significant pressure, especially when the vehicle leaves the wading area. Setting a larger grille opening when the vehicle leaves the wading area helps the pressure inside the engine compartment quickly balance with the external pressure, thereby reducing the pressure on the engine compartment underbody protection plate 3 and effectively preventing it from detaching.

[0062] Furthermore, as the wading depth gradually increases, the opening of the first theoretical grille gradually increases. Referring to Table 1, as the wading depth above the guard plate gradually increases, the opening of the first theoretical grille gradually increases. This design helps prevent the engine compartment underbody guard plate 3 from detaching. The reason is that the greater the wading depth, the greater the pressure on the engine compartment underbody guard plate 3. When the vehicle leaves the wading area, a larger grille opening helps the pressure inside the engine compartment quickly balance with the external pressure, thus effectively reducing the pressure on the engine compartment underbody guard plate 3 and preventing it from detaching.

[0063] Furthermore, the data in Table 1 represents the first theoretical slat opening based on the first current vehicle speed and wading depth. Other first theoretical slat openings determined solely by the first current vehicle speed and solely by the wading depth can be determined through calibration tests or discussions. It should also be noted that, for example, a vehicle speed of 0-10 km / h means a speed greater than the minimum (e.g., 0 km / h) and less than or equal to the maximum (e.g., 10 km / h). Similarly, a wading depth above the slats of 0-20 mm means a wading depth above the slats greater than the minimum (e.g., 0 mm) and less than or equal to the maximum (e.g., 20 mm). The same principle applies to other vehicle speeds in Table 1, vehicle speeds in Table 2, and wading depths above the slats.

[0064] Combination Figure 3 As shown, control unit 2 is also used to control the grille 4 to maintain its current opening degree when the vehicle's wading depth is less than or equal to a preset depth threshold. For example... Figure 3 In the middle, the control unit 2 controls the gate plate 4 to remain in the closed state.

[0065] S103, control the opening degree of the control grid 4 to the first theoretical grid opening degree.

[0066] It should be noted that, based on the actual number of drive mechanisms of the grid plate 4, the control unit 2 sends control information to each drive mechanism to control each grid plate 4 to rotate to a suitable opening.

[0067] In addition, it should be noted that since the grid plate 4 may have already been opened to a certain degree, the control unit 2 can obtain the current opening degree of the grid plate 4, calculate the difference between the first theoretical grid plate opening degree and the current opening degree, and send the corresponding control information to the grid plate 4 drive mechanism based on this difference.

[0068] As a preferred implementation method, such as Figure 2 and Figure 3 As shown, before obtaining the wading depth of the vehicle, the control method for opening and closing the grille in this embodiment further includes:

[0069] S002, Obtain the ambient temperature.

[0070] It should be noted that the ambient temperature can be obtained from the temperature sensor on the vehicle, and the acquisition unit 1 can obtain the temperature information from the temperature sensor. It is understood that, since the ambient temperature information in existing vehicles is sent to the existing vehicle controller, the acquisition unit 1 can also obtain the ambient temperature information from the vehicle controller and transmit it to the control unit 2 in this embodiment.

[0071] S003. When the ambient temperature is lower than the preset ambient temperature threshold, the control grid 4 remains closed.

[0072] It is important to note that during this step, control unit 2 needs to determine whether the ambient temperature is lower than a preset ambient temperature threshold. If the ambient temperature is lower than the preset ambient temperature threshold, control gate 4 remains closed. When the ambient temperature is greater than or equal to the preset ambient temperature threshold, step S201 can be executed.

[0073] In this embodiment, the preset ambient temperature threshold can be, for example, 0°C. It is understood that, in addition to this, setting the preset ambient temperature threshold to other temperatures is also feasible.

[0074] As a preferred embodiment, reference is still made to... Figure 2 and Figure 3 As shown, before acquiring the ambient temperature, the control method for opening and closing the grid plate in this embodiment further includes:

[0075] S001, The self-test of switch 4 on the grid plate is successful.

[0076] It should be noted that the control unit 2 can determine whether the self-test of the gate plate 4 switch is successful. Furthermore, if the self-test of the gate plate 4 switch is successful, the aforementioned step S002 is executed. If the self-test of the gate plate 4 switch is unsuccessful, the gate plate opening and closing control method of this embodiment is not executed.

[0077] The success of the self-test of the grid plate 4 switch can be determined in the following ways. For example, the number of rotations of the grid plate 4 shaft can be monitored. The control unit 2 can determine that the self-test of the grid plate 4 switch is successful when the theoretical number of rotations is consistent with the actual number of rotations, and determine that the self-test of the grid plate 4 switch fails when the theoretical number of rotations is inconsistent with the actual number of rotations or the difference exceeds a certain range.

[0078] In addition, other methods can be used to determine whether the self-test of the grid 4 switch is successful. For example, two limit switches can be set at the maximum open position and the closed position of the grid 4. When the grid 4 switch is self-tested, the control unit 2 receives signals from the limit switches at the maximum open position and the closed position in turn. If the self-test is successful, it means that the grid 4 switch is self-tested successfully; otherwise, it means that the self-test of the grid 4 switch is failed.

[0079] As a preferred implementation method, continue to refer to Figure 2 and Figure 3 As shown, before acquiring the ambient temperature, the control method for opening and closing the grid plate in this embodiment further includes:

[0080] S201. When the ambient temperature is greater than or equal to a preset ambient temperature threshold, acquire the cabin temperature and the temperature of the components inside the cabin.

[0081] It should be noted that the engine compartment temperature and the temperature of the components within the engine compartment can be obtained using existing sensors on the vehicle. Acquisition unit 1 simply obtains the corresponding temperature information from each sensor. The components within the engine compartment mainly include the engine and transmission, but may also include other key components, such as the electric motor in a hybrid vehicle.

[0082] S202. When the engine compartment temperature is greater than a preset engine compartment temperature threshold, or when the temperature of the components in the engine compartment is greater than a preset component temperature threshold, obtain the second current vehicle speed and the second theoretical grid opening corresponding to the second current vehicle speed.

[0083] It should be noted that if either the temperature inside the engine compartment or the temperature of the components inside the engine compartment exceeds the theoretical temperature threshold, the control unit 2 will obtain the second current vehicle speed and the second theoretical gate opening corresponding to the second current vehicle speed.

[0084] For example, as shown in Table 2, the opening degree of the grille 4 can be controlled to different second theoretical grille opening degrees at different vehicle speeds. It should be noted that the data in Table 2 is only an example; specific values ​​can be determined based on calibration tests and research.

[0085] Table 2:

[0086]

[0087] It should be noted that, as shown in Table 2, the opening of the second theoretical grille gradually decreases as the second current vehicle speed gradually increases. This design balances the needs for heat dissipation and wind resistance reduction. The reason is that as the grille opening increases, the wind resistance borne by grille 4 increases. The effectiveness of heat dissipation is related to the airflow velocity through the engine compartment. At higher vehicle speeds, the airflow velocity through the engine compartment is faster, so a larger grille opening is not required to ensure effective cooling of the engine compartment. Therefore, the gradual decrease in the opening of the second theoretical grille as the second current vehicle speed increases in Table 2 effectively balances the needs for heat dissipation and wind resistance reduction.

[0088] In a preferred embodiment, the control unit 2 keeps the control grille 4 closed when the cabin temperature is less than or equal to a preset cabin temperature threshold, and when the temperature of the components inside the cabin is less than or equal to a preset component temperature threshold. It should be noted that the control grille 4 can be kept closed when all temperatures, including the cabin temperature and the component temperatures, are less than or equal to the theoretical thresholds, and even after the control grille 4 is kept closed, the aforementioned step S001 still needs to be executed.

[0089] S203, control the opening degree of the control grid 4 to the second theoretical grid opening degree.

[0090] It should be noted that after adjusting the opening of the grille 4 to the second theoretical grille opening, the control unit 2 needs to monitor the engine compartment temperature and the temperature of the components inside the engine compartment in real time. In other words, the control unit 2 needs to determine in real time whether the engine compartment temperature is greater than the preset engine compartment temperature threshold and whether the temperature of the components inside the engine compartment is greater than the preset component temperature threshold, so as to adjust the opening of the grille 4 in real time, thereby achieving a better balance between cooling and reducing vehicle driving resistance.

[0091] It should also be noted that after controlling the opening of the grille 4 to the second theoretical grille opening, if encountering wading conditions, there is no need to adjust the grille opening according to the wading depth. This is because the purpose of controlling the opening of the grille 4 to the second theoretical grille opening is for heat dissipation. However, if the vehicle's wading depth exceeds the height of the engine compartment underbody protection plate 3, even if the opening of the grille 4 is at the second theoretical grille opening, the engine compartment cannot dissipate heat due to the wading conditions. Therefore, this situation will cause the vehicle's thermal management system to fail. When encountering a thermal management system failure, the appropriate operating procedures can be found in existing technologies.

[0092] The nacelle underbody panel 3 of this embodiment has a high degree of integration. The requirements for heat preservation, heat dissipation, wading, and drag reduction can be met simply by setting up the grille 4. The grille structure formed by the grille 4 allows the target requirements to be met by simply setting the control method described above, eliminating the need for additional drainage holes and saving production costs. The grille opening and closing control method of this embodiment adjusts the opening degree of the grille 4 when the wading depth exceeds a preset depth threshold, giving the vehicle high wading passability and allowing the nacelle to simultaneously meet the requirements for heat preservation and wind resistance reduction, thereby improving the vehicle's performance.

[0093] It should also be noted that, in addition, the reference Figure 2 As shown, after step S002, step S201 is executed first, and step S101 is executed only after step S003 is executed. The reason for this setting is to prioritize meeting the heat dissipation and wind resistance reduction requirements of the grid plate 4. When the grid plate 4 is in the closed state, the water wading function requirements can be further met on the basis of meeting the heat dissipation and wind resistance reduction requirements of the grid plate 4.

[0094] This control method does not require changing the structure of the engine compartment underbody 3. It only requires adjusting the control method of the grille 4 to increase the function of the engine compartment underbody 3. Applying the engine compartment underbody 3 to the vehicle does not require adding or changing the vehicle hardware, but can increase the vehicle's function, making the vehicle more suitable for wading conditions and improving the vehicle's wading passability.

[0095] This embodiment also relates to a control device, which may be, for example, a vehicle's ECU (Electronic Control Unit) or VCU (Vehicle Control Unit), such as... Figure 4 As shown, it mainly includes an acquisition unit 1 and a control unit 2 connected to the acquisition unit 1. It is understood that the control device can be either an existing ECU or VCU in the vehicle, or it can be set up separately.

[0096] Specifically, the acquisition unit 1 is used to acquire the wading depth of the vehicle; and when the wading depth is greater than a preset depth threshold, it acquires the first current vehicle speed and the first theoretical slat opening degree corresponding to the first current vehicle speed and / or wading depth. The control unit 2 is used to control the opening degree of the slat 4 to the first theoretical slat opening degree. Specifically, when implementing the above-described slat opening and closing control method, the control device can be referred to the detailed description above.

[0097] In a preferred embodiment, the acquisition unit 1 is also used to acquire the ambient temperature, and the control unit 2 is also used to control the grid plate 4 to remain closed when the ambient temperature is lower than a preset ambient temperature threshold.

[0098] In a preferred embodiment, the control unit 2 is further configured to determine that the switch self-test of the grille 4 is successful before acquiring the ambient temperature. The acquisition unit 1 is further configured to acquire the engine compartment temperature and the temperature of the components inside the engine compartment when the ambient temperature is greater than or equal to a preset ambient temperature threshold; and to acquire the second current vehicle speed and the second theoretical grille opening corresponding to the second current vehicle speed when the engine compartment temperature is greater than a preset engine compartment temperature threshold, or when the temperature of the components inside the engine compartment is greater than a preset component temperature threshold; the control unit 2 is further configured to control the opening of the grille 4 to the second theoretical grille opening.

[0099] This embodiment also provides a vehicle, which includes a vehicle controller capable of executing the gate opening and closing control method of this embodiment. Specifically, the vehicle controller includes one or more processors and one or more memories. The processor may include one or more processing cores, such as a 4-core processor, an 8-core processor, etc. The processor may be implemented using at least one hardware form of DSP (Digital Signal Processing), FPGA (Field-Programmable Gate Array), or PLA (Programmable Logic Array). The processor may also include a main processor and a coprocessor. The main processor is used to process data in the wake-up state, also known as a CPU (Central Processing Unit); the coprocessor is a low-power processor used to process data in the standby state.

[0100] In some embodiments, the processor may integrate a GPU (Graphics Processing Unit) responsible for rendering and drawing the content to be displayed on the screen. In some embodiments, the processor may also include an AI (Artificial Intelligence) processor for handling computational operations related to machine learning. The memory may include one or more computer-readable storage media, which may be non-transitory. The memory may also include high-speed random access memory and non-volatile memory, such as one or more disk storage devices or flash memory devices.

[0101] In some embodiments, a non-transitory computer-readable storage medium in the memory is used to store at least one computer program, which is executed by a processor to implement the gate opening and closing control method provided in this embodiment. Those skilled in the art will understand that, in addition to including a memory and a processor, a vehicle controller may include more or fewer components, or combine certain components, or employ different component arrangements.

[0102] The control device and vehicle of this embodiment have the same beneficial effects as the aforementioned control method for opening and closing the gate, and will not be described again here.

[0103] This embodiment also relates to a computer program that includes computer-readable code, which, when run on a computing processing device such as a computer, executes the gate opening and closing control method of this embodiment.

[0104] In some embodiments, the computer program involved in the present application may be deployed and executed on a vehicle controller, or on multiple vehicle controllers located at one location, or on multiple vehicle controllers distributed in multiple locations and interconnected through a communication network. Multiple vehicle controllers distributed in multiple locations and interconnected through a communication network may form a blockchain system.

[0105] Furthermore, this embodiment also relates to a computer-readable storage medium for storing the above-described computer program, which, when executed by a processor, implements the control method for opening and closing the gate as described above.

[0106] At this point, a general example of a computer-readable storage medium is a memory. Furthermore, computer-readable storage media include both permanent and non-permanent, removable and non-removable media, and information storage can be achieved by any method or technology.

[0107] Information can be computer-readable instructions, data structures, program modules, or other data. Examples of computer-readable storage media include, but are not limited to, phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, optical discs, read-only memory (CD-ROM), digital versatile optical discs (DVDs) or other optical data storage devices, floppy disks, magnetic tape cassettes, magnetic magnetic disk storage or other magnetic storage devices, or any other non-transfer medium that can be used to store information that can be accessed by a computing device.

[0108] Furthermore, this embodiment also relates to a computing processing device, which includes a processor and a memory, and the memory stores the computer-readable program code as described above. When the processor executes the computer-readable program code, the computing processing device executes the gate opening and closing control method of this embodiment.

[0109] The computing device in this embodiment can generally be a vehicle ECU (Electronic Control Unit), where the processor can be, for example, a microprocessor or a digital signal processor, and the memory can be an electronic memory such as flash memory, EEPROM (Electrically Erasable Programmable Read-Only Memory), or EPROM. The memory has storage space for the computer program.

[0110] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A method for controlling the opening and closing of a grid plate, characterized in that, The method includes: Obtain the vehicle's wading depth; When the vehicle's wading depth is greater than a preset depth threshold, obtain the first current vehicle speed and the first theoretical grid opening corresponding to the first current vehicle speed and / or the wading depth; The opening degree of the control grid (4) is adjusted to the opening degree of the first theoretical grid; Before obtaining the wading depth of the vehicle, the method further includes: Obtain the ambient temperature; When the ambient temperature is greater than or equal to a preset ambient temperature threshold, the cabin temperature and the temperature of the components inside the cabin are obtained; When the engine compartment temperature is greater than a preset engine compartment temperature threshold, or when the temperature of components inside the engine compartment is greater than a preset component temperature threshold, a second current vehicle speed and a second theoretical grid opening corresponding to the second current vehicle speed are obtained. The opening degree of the control grid (4) is adjusted to the second theoretical grid opening degree.

2. The control method for opening and closing the grid plate according to claim 1, characterized in that: Before obtaining the wading depth of the vehicle, the method further includes: Obtain the ambient temperature; When the ambient temperature is less than the preset ambient temperature threshold, the control grid (4) remains closed.

3. The control method for opening and closing the grid plate according to claim 1, characterized in that: Before obtaining the ambient temperature, the method further includes: The self-test of the gate (4) switch was successful.

4. The control method for opening and closing the grid plate according to claim 1, characterized in that: When the cabin temperature is less than or equal to a preset cabin temperature threshold, and when the temperature of the components inside the cabin is less than or equal to a preset component temperature threshold, the control grid (4) remains closed.

5. The control method for opening and closing the grid plate according to any one of claims 1-4, characterized in that: When the vehicle's wading depth is less than or equal to a preset depth threshold, the control gate (4) maintains its current opening. The preset depth threshold is the height of the lower hull panel above the ground.

6. A control device, characterized in that: It includes an acquisition unit (1) and a control unit (2) connected to the acquisition unit (1); The acquisition unit (1) is used to acquire the wading depth of the vehicle; and when the wading depth of the vehicle is greater than a preset depth threshold, it acquires the first current vehicle speed and the first theoretical grid opening corresponding to the first current vehicle speed and / or the wading depth. The control unit (2) is used to control the opening degree of the grid plate (4) to the first theoretical grid plate opening degree; Before obtaining the wading depth of the vehicle, the acquisition unit (1) is also used to obtain the ambient temperature; when the ambient temperature is greater than or equal to a preset ambient temperature threshold, the engine compartment temperature and the temperature of the components inside the engine compartment are obtained; when the engine compartment temperature is greater than a preset engine compartment temperature threshold, or when the temperature of the components inside the engine compartment is greater than a preset component temperature threshold, the second current vehicle speed and the second theoretical grid opening corresponding to the second current vehicle speed are obtained; the control unit (2) is also used to control the opening of the grid (4) to the second theoretical grid opening.

7. A vehicle, characterized in that: The vehicle includes a vehicle controller, which is capable of executing the control method for opening and closing the grille as described in any one of claims 1-5.

8. A computer-readable storage medium, characterized in that: The computer-readable storage medium is used to store a computer program, which, when executed by a processor, enables the control method for opening and closing the gate as described in any one of claims 1-5.

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