Vehicle wading control method and system and vehicle

Abstract

The invention provides a vehicle wading control method and system and a vehicle, relates to the field of vehicle control and is applied to a vehicle controller of the vehicle, and a vehicle wading detection device is arranged on the vehicle and comprises at least one water level detection device. At least one water level detection device comprises a first water level detection device arranged outside a cockpit, the installation height of the first water level detection device in the preset height direction is lower than the lowest height of the cockpit, and the method comprises the steps that if the first water level detection device detects a water level signal for the first time, vehicle chassis rising operation is executed; and after the vehicle chassis lifting operation is executed, if the first water level detection device detects the water level signal again, an air inlet of an air inlet system and / or an air conditioner system on the vehicle is closed. The wading safety of the vehicle can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of vehicle control, in particular, to a vehicle wading control method and system and a vehicle. BACKGROUND

[0002] When a traditional vehicle faces a wading working condition, the driver can only judge the passing risk by subjective experience, which has great safety hazards. Forcing through an unknown water depth area is easy to cause engine water entry and stall, circuit short circuit, and even vehicle floating, which seriously threatens the safety of the driver and passenger. In addition, when the vehicle is in a parking state and encounters a rising water level, the traditional vehicle lacks an effective risk perception and early warning mechanism, and cannot timely notify the vehicle owner to move the vehicle, often causing the vehicle to be soaked for a long time, causing huge property losses.

[0003] At present, although a few vehicles on the market are equipped with wading detection devices, they still have problems such as false alarm caused by splashing water, or only providing warning without active intervention measures, and cannot perform key operations such as lifting the chassis, closing the air intake, limiting the vehicle speed, and the like when the risk escalates, and lack of final monitoring and automatic rescue linkage capability for the passenger compartment water entry. Therefore, there is an urgent need for a new energy vehicle wading protection scheme that can accurately detect, grade early warning, and actively perform multi-level safety control. SUMMARY

[0004] The embodiments of the present application provide a vehicle wading control method, system and vehicle, which can improve the safety of the vehicle when wading.

[0005] In a first aspect, the embodiments of the present application provide a vehicle wading control method applied to a vehicle controller of a vehicle, wherein the vehicle is provided with a vehicle wading detection device, and the vehicle wading detection device comprises at least one water level detection device, and the at least one water level detection device comprises: a first water level detection device arranged outside a driver's cabin, wherein the installation height of the first water level detection device in a preset height direction is lower than the lowest height of the driver's cabin, and the method comprises: If the first water level detection device detects a water level signal for the first time, a vehicle chassis lifting operation is performed. After performing the vehicle chassis lifting operation, if the first water level detection device detects a water level signal again, the air inlet of an air intake system and / or an air conditioning system on the vehicle is closed.

[0006] Optionally, the at least one water level detection device further comprises: a second water level detection device arranged in a preset bottom area of the driver's cabin, and the method further comprises: If the second water level detection device detects a water level signal, an escape passage of the vehicle is opened.

[0007] Optionally, if the vehicle is in a remote monitoring mode, the method further comprises: If the first water level detection device detects a water level signal for the first time, it will send a level one alarm message to the user. If the first water level detection device detects the water level signal again, it will send a level two alarm message to the user. If the second water level detection device detects a water level signal, it will send a level 3 alarm message to the user and send a rescue request message to the rescue platform.

[0008] Optionally, if the vehicle is in a local stationary detection mode or a driving wading detection mode, the method further includes: If the first water level detection device detects a water level signal for the first time, it will display a level one alarm message through the instrument equipment; If the first water level detection device detects a water level signal again, it will display a secondary alarm message through the instrument and issue an audible and visual alarm signal. If the second water level detection device detects a water level signal, it will display a level three alarm message through the instrument and send a rescue request message to the rescue platform.

[0009] Optionally, if the vehicle is in a wading detection mode, the method further includes: If the first water level detection device detects a water level signal again, it will issue a speed limit confirmation message, which is used to request the user to confirm whether to drive through water at a preset speed limit.

[0010] Optionally, if the vehicle is in remote monitoring mode or local stationary detection mode, the method further includes: If the first water level detection device detects a water level signal again, the power system shall be prohibited from starting.

[0011] Secondly, this application also provides a vehicle wading control system, which includes: a vehicle controller, a vehicle wading detection device, a vehicle suspension, an air intake system, and an air conditioning system; the vehicle wading detection device includes at least one water level detection device, and the at least one water level detection device includes a first water level detection device disposed outside the driver's cabin, the first water level detection device being installed at a height lower than the minimum height of the driver's cabin in a preset height direction, the vehicle wading detection device being connected to the vehicle controller, the vehicle controller being connected to the vehicle suspension to control the vehicle suspension to perform a vehicle chassis raising operation, and the vehicle controller being further connected to the air intake system and the air conditioning system to close the air intake of the air intake system and / or the air intake of the air conditioning system; The vehicle controller is used to execute the vehicle wading control method described in any of the first aspects above.

[0012] Optionally, at least one of the water level detection devices further includes: a second water level detection device disposed in a preset bottom area within the cockpit, the second water level detection device also being connected to the vehicle controller.

[0013] Optionally, the water level detection device includes: a housing, a water level sensor, an inlet filter screen, and an outlet filter screen; the diameter of the inlet of the housing is smaller than the diameter of the outlet; the water level sensor is disposed in the internal cavity of the housing; the inlet filter screen covers the inlet; and the outlet filter screen covers the outlet.

[0014] Thirdly, embodiments of this application also provide a vehicle, the vehicle comprising: a vehicle body, and a vehicle wading control system as described in any of the second aspects above, disposed on the vehicle body.

[0015] This application provides a vehicle wading control method, system, and vehicle. The vehicle wading control method is executed by the vehicle controller. The vehicle is equipped with a wading detection device, which includes at least one water level detection device. The first water level detection device is located outside the driver's cabin, and its installation height at a preset height is lower than the minimum height of the driver's cabin, forming the first line of wading protection. The method first monitors the external water level through the first water level detection device. When it detects a water level signal for the first time, it immediately performs a vehicle chassis raising operation to improve passability and safety. If the first water level detection device detects a water level signal again after the chassis is raised, it immediately closes the air intake of the vehicle's air intake system and / or air conditioning system to prevent water from flowing back into the engine or passenger compartment. This achieves graded and automatic wading risk identification and active safety control, effectively improving the safety of the vehicle when driving and parking in water. Through the aforementioned vehicle wading control method, utilizing a first water level detection device, fully automatic, multi-level dynamic protection against wading risks is achieved without relying on the driver's subjective judgment or any external intervention. When the vehicle first wades through water, the risk is quickly identified by the water level signal, and the chassis is actively raised to increase ground clearance, enhancing the vehicle's passability. Secondly, if the water level continues to rise, a second water level detection trigger will further close the air intake to prevent water damage to the engine and the risk of water entering the passenger compartment, forming a progressive protection. This not only significantly reduces wading safety accidents caused by insufficient driver experience or misjudgment, but also continuously monitors water level changes, effectively preventing flooding risks and comprehensively improving the vehicle's safety and intelligent protection level in complex wading scenarios. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the installation position of a first water level detection device provided in an embodiment of this application; Figure 2 A schematic flowchart illustrating a vehicle wading control method provided in an embodiment of this application; Figure 3 This is an intentional illustration of the installation position of a second water level detection device provided in an embodiment of this application. Figure 4 A schematic diagram illustrating the control process in remote monitoring mode of a vehicle wading control method provided in this application embodiment; Figure 5 This is a schematic diagram illustrating the process of implementing control in a local stationary detection mode or a driving wading detection mode in a vehicle wading control method provided in an embodiment of this application. Figure 6 A schematic flowchart illustrating another vehicle wading control method provided in this application embodiment; Figure 7 This is a schematic diagram of a vehicle wading control system provided in an embodiment of this application; Figure 8 This is a schematic diagram of the structure of a water level detection device provided in an embodiment of this application; Figure 9 This is a schematic diagram of the installation of the water level detection device provided in the embodiments of this application. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0020] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0021] Before providing a detailed explanation of this application, let's first introduce its application scenarios.

[0022] In the actual use of new energy vehicles, the vehicles face complex and ever-changing water-crossing environments, placing higher demands on driving safety and electrical system protection. Typical scenarios include: sudden heavy rain in cities, causing roads to flood rapidly, requiring drivers to judge whether it is safe to pass under conditions of poor visibility and unknown water depth; vehicles parked in underground garages or low-lying areas on the roadside, where poor drainage systems cause water levels to rise, endangering vehicle safety; and users traversing streams, swamps, and other non-standard water-crossing surfaces when driving in the wild or doing light off-roading. In these scenarios, traditional vehicles rely on the driver's personal experience to assess risks, lacking objective and real-time water-crossing monitoring and proactive safety intervention, which can easily lead to serious consequences such as engine stalling due to water ingress, system short circuits, or even occupants being trapped due to misjudgment. At the same time, the few existing models equipped with water level sensors are susceptible to interference from splashing water, resulting in false alarms, and generally lack the hierarchical response capability linked to vehicle control, failing to automatically execute protective actions.

[0023] Based on this, this application provides a vehicle wading control method, system, and vehicle. The vehicle wading control method is executed by the vehicle controller. The vehicle is equipped with a wading detection device, which includes at least one water level detection device. The first water level detection device is located outside the driver's cabin, and its installation height at a preset height is lower than the minimum height of the driver's cabin, forming the first line of wading protection. The method first monitors the external water level through the first water level detection device. When it detects a water level signal for the first time, it immediately performs a vehicle chassis raising operation to improve passability and safety. If the first water level detection device detects a water level signal again after the chassis is raised, it immediately closes the air intake of the vehicle's air intake system and / or air conditioning system to prevent water from flowing back into the engine or passenger compartment, thereby achieving graded and automatic wading risk identification and active safety control, effectively improving the safety of the vehicle in wading driving and parking states.

[0024] The following explanation, in conjunction with the accompanying drawings, uses several embodiments to illustrate the concepts.

[0025] Before introducing the vehicle wading control method provided in the embodiments of this application, the vehicle controller used in this application and the vehicle wading detection device installed on the vehicle will be introduced first.

[0026] The vehicle wading control method provided in this application is executed by the vehicle controller. As the core control unit of the vehicle, the vehicle controller is connected to the vehicle wading detection device, vehicle suspension, intake system, air conditioning system, etc. It has a built-in processing module and storage module, and pre-stores the operation program and control logic related to vehicle wading control. It can receive the water level signal sent by the vehicle wading detection device in real time and generate corresponding control commands to drive the various execution components on the vehicle to complete the corresponding operations, ensuring rapid response and control in different wading environments.

[0027] The vehicle wading detection device is integrated into the vehicle body and includes at least one water level detection device. This at least one water level detection device includes a first water level detection device located outside the driver's compartment. The first water level detection device is installed at a height lower than the minimum height of the driver's compartment in a predetermined height direction. The water level detection device is used to detect changes in water level and can be configured as one or more devices, arranged in different areas of the vehicle body to achieve multi-location water level monitoring, depending on the vehicle's protection requirements. In this embodiment, at least one water level detection device includes at least a first water level detection device. This first water level detection device, as the vehicle's external wading detection device, is preferentially located in the front of the vehicle body in an area easily exposed to water, to detect changes in external water level. The first water level detection device is fixedly connected to the vehicle body to ensure long-term stable operation.

[0028] Furthermore, to improve the comprehensiveness and accuracy of vehicle external water level detection and avoid missed or false alarms caused by water accumulation on one side of the vehicle, uneven water levels, or malfunctions of single detection points, multiple first water level detection devices can be configured. These multiple first water level detection devices can be installed at multiple different locations on the same preset plane of the vehicle. The preset plane must ensure that the installation height of all first water level detection devices is lower than the minimum height of the driver's cabin, guaranteeing that each first water level detection device can detect the external water level synchronously or sequentially before water enters the driver's cabin. Maintaining a consistent installation height for multiple first water level detection devices allows for more comprehensive and reliable detection data to the vehicle controller through coordinated monitoring of multiple detection points, regardless of the vehicle's parking posture or the side from which water spreads, thereby further improving the timeliness and accuracy of identifying external water wading risks.

[0029] Optionally, the first water level detection device can adopt the capacitive detection principle. It uses a built-in capacitive sensor to sense the dielectric difference of the surrounding environment. When it comes into contact with water flow, the dielectric properties change, thereby generating a corresponding water level signal. The signal is transmitted to the vehicle controller through the vehicle's internal control area network, such as the CAN (Autonomous Area Network) bus, to ensure the real-time performance and accuracy of the detection data.

[0030] In one specific implementation, the first water level detection device is installed in the front chassis area of ​​the vehicle. See also Figure 1 , Figure 1 This is a schematic diagram showing the installation position of a first water level detection device provided in an embodiment of this application. Figure 1 As shown, the first water level detection device is fixedly installed on the inner frame of the front bumper, directly behind the front millimeter-wave radar. This helps to provide some protection using the front vehicle structure while avoiding interference with the radar signal. Simultaneously, the installation height of the first water level detection device can be set to the maximum wading depth at the vehicle's lowest position, for example, 30 centimeters above the horizontal ground. This ensures that when the external water level reaches this height, the built-in sensor can be triggered. Since the height is lower than the lowest point of the passenger compartment, the first water level detection device can detect the rise in the external water level before water enters the passenger compartment, thus buying time for active protection.

[0031] In another possible implementation, the first water level detection device can also be installed in a location that is not easily impacted but can contact the water level, such as below the vehicle door sill. When the vehicle is wading through water, this location can contact the water level that spreads and rises from both sides of the vehicle body earlier and more stably. This is conducive to the balanced detection of the actual wading situation around the vehicle and avoids detection delays or missed reports caused by slight tilting of the vehicle or higher water level on one side.

[0032] In another possible implementation, the first water level detection device can also be flexibly installed in other suitable locations outside the driver's cabin according to the vehicle structure and protection requirements, such as areas on both sides of the chassis that are prone to water accumulation. The specific installation point and fixing method can be adjusted according to design needs, as long as it is located outside the driver's cabin and the installation height in the preset height direction is lower than the minimum height of the driver's cabin.

[0033] Based on the aforementioned vehicle controller and vehicle wading detection device, this application provides a vehicle wading control method. See also... Figure 2 , Figure 2 This is a schematic flowchart illustrating a vehicle wading control method provided in an embodiment of this application. Figure 2 As shown, this vehicle wading control method is applied to the vehicle controller and includes the following steps: S101, if the first water level detection device detects the water level signal for the first time, the vehicle chassis lifting operation is executed.

[0034] Specifically, after the vehicle is powered on, the first water level detection device remains operational, monitoring the external water level in real time using built-in sensors. It's important to note that there can be one or more first water level detection devices. If multiple devices are used, the first detection is considered complete once even one device detects a water level signal; not all devices need to detect a signal. This improves the sensitivity of water level detection and avoids missed detections due to a single device malfunction or blind spots. When the vehicle travels through a flooded area or parking zone, the water level rises, flowing into any of the first water level detection devices. This causes a change in the sensor's capacitance value, which is converted into a water level signal and transmitted in real time to the vehicle controller via the CAN bus. Based on the received water level signal, if the vehicle controller determines that it is the first time a water level signal has been detected (i.e., no such signal has been received before), it confirms that the vehicle has entered a wading environment and classifies the current wading risk level as Level 1. At this point, the vehicle controller immediately generates a chassis lift control command and sends it to the vehicle suspension via the CAN bus. Specifically, if the vehicle is equipped with air suspension, the suspension controller drives the air compressor to inflate the airbags until the chassis height reaches the preset maximum safety value; if equipped with electromagnetic suspension, the suspension stiffness and travel are changed by adjusting the current of the electromagnetic coil to raise the chassis. Raising the chassis increases the distance between the bottom of the vehicle and the water surface, reducing the risk of water immersion in chassis components (such as the drive shaft and oil pipe interfaces), thus improving the vehicle's safety when wading.

[0035] S102, after the vehicle chassis lifting operation is performed, if the first water level detection device detects the water level signal again, the air intake of the vehicle's air intake system and / or air conditioning system is closed.

[0036] Specifically, after the vehicle chassis is raised, the vehicle controller continuously monitors the status of the first water level detection device. If the first water level detection device detects a water level signal again, it indicates that the external water level has continued to rise and has exceeded the safe height of the raised chassis, causing the first water level detection device, which has already been raised, to be submerged again, and the water wading risk level is determined to be Level 2. At this time, the vehicle controller can selectively execute single or combined protective operations based on the actual water wading scenario and vehicle configuration: if it is only necessary to block water from entering the engine, the vehicle controller generates an intake system shutdown command, such as controlling the shutdown of the engine system's intake valve to block external water from entering the engine cylinder through the intake pipe, thus preventing the engine from stalling or internal components from being damaged; if it is only necessary to protect the passenger compartment and air conditioning system, the vehicle controller generates an air conditioning system intake shutdown command, thereby closing the air conditioning system's fresh air intake damper to prevent moisture from entering the passenger compartment through the air conditioning pipes, reducing the impact of the humid environment inside the vehicle on electronic components, and also preventing water from flowing back into the air conditioning duct and causing malfunctions; in addition, the vehicle controller can also generate the above two types of shutdown commands simultaneously, closing the engine intake system and the air conditioning fresh air intake at the same time, forming dual protection to minimize the impact of water wading on vehicle components and the passenger compartment environment.

[0037] In this embodiment, a first water level detection device is used to achieve fully automatic, multi-level dynamic protection against water-related risks without relying on the driver's subjective judgment or any external intervention. When the vehicle first enters water, the risk can be quickly identified by the water level signal, and the chassis can be raised to increase the safe ground clearance, thereby enhancing the vehicle's passability. Secondly, if the water level continues to rise, a second detection will be triggered, which will further close the air intake to prevent water damage to the engine and water ingress into the cabin, forming a progressive protection. This not only significantly reduces water-related safety accidents caused by insufficient driver experience or misjudgment, but also continuously monitors water level changes to effectively prevent flooding risks, comprehensively improving the vehicle's safety and intelligent protection level in complex water-related scenarios.

[0038] In the above Figure 2 Based on the provided embodiments, optionally, at least one water level detection device further includes: a second water level detection device disposed in a predetermined bottom area within the cockpit, and the method further includes: S210, if the second water level detection device detects a water level signal, the vehicle escape route will be opened.

[0039] Building upon the vehicle wading control achieved by the first water level detection device in the above embodiments, this embodiment further introduces a second water level detection device installed in a predetermined bottom area within the driver's cabin, thereby achieving even greater wading protection. It should be noted that the number of second water level detection devices can be one or more, and can be configured to multiple devices depending on the size of the driver's cabin, vehicle structure, and protection requirements, to comprehensively cover areas within the driver's cabin that may be flooded. This avoids blind spots or malfunctions at a single detection point that could prevent water from entering the cabin from being detected in time, further improving the timeliness and reliability of occupant escape.

[0040] Specifically, multiple second water level detection devices can be deployed in different preset bottom areas within the cockpit. For example, in addition to being fixed under the driver's seat, they can also be installed under the passenger seat, under the rear seats, or under the center of the cockpit floor—locations prone to water accumulation. The installation height of all second water level detection devices is lower than the minimum height of the seats and other core electronic components in the cockpit, ensuring immediate detection of water ingress. While continuously monitoring the water level signal emitted by the first water level detection device and implementing corresponding protective measures, the vehicle controller also monitors the status of all second water level detection devices in real time. If any second water level detection device detects a water level signal, it is determined that the cockpit has entered water; not all second water level detection devices need to detect a water level signal, thus improving detection sensitivity.

[0041] See Figure 3 , Figure 3 This is an illustration of the installation location of a second water level detection device provided in an embodiment of this application. Figure 3 As shown, the second water level detection device can be fixed below the driver's seat to ensure that water ingress into the cabin can be detected. If multiple devices are installed, they can be added at the bottom of the passenger seat or other locations to ensure comprehensive and timely detection of water ingress into the cabin.

[0042] Once any of the secondary water level detection devices detects a water level signal, it indicates that external water has entered the driver's cabin. At this point, the vehicle faces the risk of occupants being trapped, and the flood risk level is determined to be Level 3. The vehicle controller simultaneously sends instructions to the vehicle door lock control system and window control system. After responding to the instructions, the door lock controller automatically unlocks all vehicle doors, ensuring that the doors can be opened directly. After responding to the instructions, the window controller drives all windows (including the sunroof) to the fully open position, thereby quickly opening up the vehicle's escape route and providing occupants with escape conditions in the emergency situation where the doors are difficult to open due to water pressure.

[0043] In this embodiment, a second water level detection device in the pre-set bottom area of ​​the cockpit can monitor the risk of water entering the cabin. Once triggered, the door locks and windows will automatically open to form an escape route. The route can be opened without manual operation, effectively reducing the risk of people being trapped in water accidents and significantly improving the safety and personnel protection capabilities of vehicles in water-related scenarios.

[0044] In the above Figure 3 Based on the provided embodiments, in order to more clearly demonstrate the process of vehicle wading control in remote monitoring mode, this application also provides a possible implementation method for implementing control in remote monitoring mode in the vehicle wading control method. Figure 4 This is a schematic diagram illustrating the control process implemented in remote monitoring mode of a vehicle wading control method provided in an embodiment of this application. Figure 4 As shown, if the vehicle is in remote monitoring mode, the method further includes, in addition to the above S210, the following: S310: If the first water level detection device detects a water level signal for the first time, it will send a first-level alarm message to the user.

[0045] Specifically, when the vehicle is in remote monitoring mode (such as when the vehicle is locked and powered off, or when the user has left the vehicle), the vehicle controller continuously receives signals from the first water level detection device. When the vehicle controller determines that the first water level detection device has detected a water level signal for the first time, it determines that the current water wading risk level is Level 1 and simultaneously generates a Level 1 alarm message. The Level 1 alarm message includes at least the text message "The vehicle has come into contact with water, and the current water wading state is low risk," as well as information such as the vehicle's current location coordinates and the water level detection timestamp.

[0046] In one possible implementation, the vehicle controller pushes alarm information to the user's bound mobile terminal APP via an onboard wireless communication module, such as a 4G (4th-Generation Mobile Communication Technology) / 5G (5th-Generation Mobile Communication Technology) module, while triggering pop-up reminders and vibration notifications to ensure that the user can be informed of the initial risk of the vehicle wading through water remotely.

[0047] S320: If the first water level detection device detects the water level signal again, it will send a second-level alarm message to the user.

[0048] Specifically, in remote monitoring mode, after the chassis is raised, if the first water level detection device detects a valid water level signal again, the vehicle controller determines the water wading risk level to be Level 2 and generates a Level 2 alarm message. The Level 2 alarm message includes at least the text message "Water level continues to rise, current water wading status is medium risk", as well as the vehicle's current location coordinates, water level detection timestamp, and other information.

[0049] Level 2 alarm information is sent to users through both mobile app push notifications and SMS notifications. The app displays the alarm in a highlighted red pop-up window, while the SMS clearly prompts users to go to the vehicle's location as soon as possible to handle the situation, thereby increasing users' awareness of the risk.

[0050] S330: If the second water level detection device detects a water level signal, it will send a level 3 alarm message to the user and send a rescue request message to the rescue platform.

[0051] Specifically, in remote monitoring mode, if the second water level detection device detects a water level signal and determines the water wading risk level to be Level 3, confirming water ingress into the cockpit, it generates a Level 3 alarm message containing the text "The cockpit has been flooded, and the current water wading situation is high-risk." This message is pushed to the user via a mobile app, SMS, and voice call to ensure the user is aware of the emergency situation immediately. Simultaneously, it automatically generates a rescue request message, including vehicle identification, real-time location, and current vehicle status. This message is sent to a pre-set rescue platform or relevant emergency response agency via a pre-set vehicle communication module, along with the user's contact information, so that rescue personnel can quickly locate the vehicle and develop a rescue plan, minimizing vehicle damage and property loss.

[0052] In this embodiment, for scenarios where the user is not in the vehicle under remote monitoring mode, a three-level alarm mechanism is used to inform and provide progressive warnings of water wading risks, thereby minimizing vehicle damage and property loss and comprehensively improving the intelligence and safety of remote water wading protection for vehicles.

[0053] In the above Figure 3 Based on the provided embodiments, in order to more clearly demonstrate the process of vehicle wading control in local stationary detection mode or driving wading detection mode, this application also provides a possible implementation method for implementing control in local stationary detection mode or driving wading detection mode in the vehicle wading control method. Figure 5 This is a schematic diagram illustrating the control process implemented in either the local stationary detection mode or the driving wading detection mode in a vehicle wading control method provided in this application embodiment. Figure 5 As shown, if the vehicle is in local stationary detection mode or driving through water detection mode, the method further includes, in addition to the above S210, the following: S410 If the first water level detection device detects a water level signal for the first time, it will display a first-level alarm message through the instrument equipment.

[0054] Specifically, when the vehicle is in local stationary detection mode (e.g., the vehicle is powered on but not moving, or the user is waiting inside the vehicle) or driving water wading detection mode (while the vehicle is in motion), the vehicle controller receives the water level signal detected by the first water level detection device in real time. When the first water level detection device detects a valid water level signal for the first time, the current water wading risk level is determined to be Level 1, and a Level 1 alarm message is generated and displayed on the central control screen of the vehicle's instrument panel. The Level 1 alarm message includes at least a warning icon (e.g., a water accumulation sign) and a text prompt (e.g., "Vehicle has come into contact with water, please be careful"), ensuring that the user can intuitively understand the water wading risk inside the vehicle and promptly stop to avoid danger or proceed with caution.

[0055] S420: If the first water level detection device detects the water level signal again, it will display the secondary alarm information through the instrument equipment and issue an audible and visual alarm signal.

[0056] Specifically, in local static detection mode or driving wading detection mode, after the chassis is raised, if the first water level detection device detects a water level signal again, it determines that the current wading risk level is Level 2 and generates a Level 2 alarm message, which is prominently displayed on the central control screen of the vehicle's instrument panel. The Level 2 alarm message includes at least a warning icon (such as a water accumulation sign) and a text prompt (such as "Water level continues to rise, please be careful!"). At the same time, an audible and visual alarm signal is issued, thereby triggering the vehicle's audible and visual alarm device. This causes the buzzer in the vehicle to emit an intermittent high-frequency alarm sound and controls the hazard warning lights to automatically illuminate and flash. This audible and visual alarm not only reminds the user in the vehicle of the risk of wading, but also warns surrounding vehicles and personnel, thereby attracting the driver's and surrounding vehicles and personnel's attention.

[0057] S430: If the second water level detection device detects a water level signal, it will display a level 3 alarm message on the instrument and send a rescue request message to the rescue platform.

[0058] Specifically, in local stationary detection mode or vehicle wading detection mode, if the second water level detection device detects a water level signal and determines the wading risk level to be Level 3, a Level 3 alarm message is generated. The instrument panel displays a red warning message, "Flooded cabin, emergency evacuation!", and continuously triggers the highest volume and frequency of audible and visual alarms. On the other hand, a rescue request message is automatically generated. This message includes vehicle identification, real-time location, and current vehicle status. It is sent to a preset rescue platform or relevant emergency organization via a preset vehicle wireless communication module, along with the user's contact information, so that rescue personnel can quickly locate the vehicle and formulate a rescue plan to minimize the damage to the vehicle and property loss.

[0059] In this example, for scenarios where the user is inside the vehicle, a progressive alarm system was built, from visual cues to audible and visual alarms, and then to automatic external distress calls. This not only ensures that the driver has a clear understanding of different levels of risk, but also realizes automated rescue and assistance, greatly improving the chances of rescue for people inside the vehicle in serious flooding accidents.

[0060] In the above Figure 5 Based on the provided embodiments, to more clearly demonstrate the vehicle wading control process when the vehicle is in wading detection mode, this application also provides a possible implementation of control in wading detection mode within the vehicle wading control method. Optionally, if the vehicle is in wading detection mode, the method further includes: S510, if the first water level detection device detects the water level signal again, it will issue a speed limit confirmation message. The speed limit confirmation message is used to request the user to confirm whether to drive through water at the preset speed limit.

[0061] Specifically, if the vehicle is in wading detection mode, after the chassis is raised, if the first water level detection device detects a valid water level signal again, determining the wading risk level to be Level 2, a speed limit confirmation message is generated. In one possible implementation, the speed limit confirmation message is displayed as a pop-up on the central control screen of the vehicle's instrument panel, containing the text "Current wading risk is high; it is recommended to limit the vehicle speed to below XX km / h (preset speed limit)," accompanied by a speed warning icon, and the message is simultaneously broadcast via the in-vehicle voice system. If the user clicks "Confirm," the vehicle controller sends a speed limit command to the power control system, locking the vehicle's maximum speed at the preset speed limit (e.g., 10 km / h) to prevent water backflow or loss of vehicle control due to high-speed driving. If the user clicks "Cancel," the pop-up automatically closes, but the instrument panel continues to display the Level 2 warning message, reminding the user to drive cautiously. By having the user confirm the speed limit, driving safety is ensured while adapting to the actual needs of different wading scenarios.

[0062] In this embodiment, for the scenario of driving through water detection mode, when the risk of water wading increases, a low-speed driving option is proactively provided. This avoids the risks of water backflow and vehicle loss of control caused by high-speed water wading, while retaining operational flexibility through user confirmation. This adapts to the actual needs of different waterlogged road conditions and further improves the safety and operational rationality of driving through water scenarios.

[0063] In the above Figure 2 Optionally, based on the provided embodiments, if the vehicle is in remote monitoring mode or local stationary detection mode, the method further includes: S610: If the first water level detection device detects the water level signal again, the power system shall be prohibited from being started.

[0064] Specifically, if the vehicle is in remote monitoring mode (corresponding to the vehicle being locked and powered off, and the user having left the vehicle) or local stationary detection mode (such as the vehicle being powered on but not moving, and the user waiting inside the vehicle), after the vehicle controller performs the chassis lifting operation, if the first water level detection device detects a water level signal again, it determines that the current water wading risk level is Level 2. At this time, the vehicle controller generates a power system start prohibition command and sends it to the engine or motor control system via the CAN bus, locking the power system's start permission. Regardless of whether the user attempts to start the vehicle via the key, mobile terminal APP, or in-vehicle start button, the start operation will be refused, and a prompt message "The current water wading environment risk is high, and starting the power system is prohibited" will be displayed on the instrument panel or APP, to prevent forced starting from causing water to enter the core power components and cause irreversible damage.

[0065] In this embodiment, to address the risk of water damage in remote monitoring or local stationary scenarios, the starting of the power system is prohibited to prevent users from forcibly starting the vehicle, which could lead to serious malfunctions such as water entering the engine or short circuits in the high-pressure system. This prevents the risk from escalating at the source, further protecting vehicle and property safety and enhancing the comprehensiveness and reliability of water protection.

[0066] Based on the above embodiments, in order to more clearly illustrate the vehicle wading control method provided in this application, this application also provides a possible implementation of the vehicle wading control method. Figure 6 This is a flowchart illustrating another vehicle wading control method provided in an embodiment of this application. Figure 6As shown, the system first enters the vehicle wading control mode. It then determines how the wading control mode is activated. If activated remotely via a user's mobile app, it further checks the vehicle's power setting. If the power setting is OFF, the vehicle enters remote monitoring mode. In this mode, it first checks if the first water level detection device has detected a water level signal for the first time. If so, it sends a level 1 alarm to the user and raises the vehicle chassis. It then checks if the first water level detection device has detected a water level signal again. If so, it sends a level 2 alarm to the user and closes the air intake of the vehicle's upper air intake system and / or air conditioning system. Next, it checks if the second water level detection device has detected a water level signal. If so, it sends a level 3 alarm to the user and sends a rescue request to the rescue platform. If the vehicle's power setting is ON, it enters local detection mode. Alternatively, if the wading control mode is manually activated by the vehicle, it also enters local detection mode. In this mode, it further checks if the vehicle speed is greater than 3 km / h. If not, the vehicle enters local stationary detection mode. In this mode, it first checks if the first water level detection device has detected a water level signal for the first time. If so, it then... The instrument panel displays a Level 1 alarm and raises the vehicle chassis. It then checks if the first water level detection device detects a water level signal again. If so, it displays a Level 2 alarm, issues an audible and visual alarm, prohibits starting the power system, and closes the air intake vents of the vehicle's upper air intake system and / or air conditioning system. Next, it checks if the second water level detection device detects a water level signal. If so, it displays a Level 3 alarm and sends a rescue request to the rescue platform. If the vehicle speed is greater than 3 km / h, the vehicle enters a wading detection mode. In this mode, it first checks if the first water level detection device detects a water level signal for the first time. If so, it displays a Level 1 alarm and raises the vehicle chassis. Then, it checks if the first water level detection device detects a water level signal again. If so, it displays a Level 2 alarm, issues an audible and visual alarm, issues a speed limit confirmation message, and closes the air intake vents of the vehicle's upper air intake system and / or air conditioning system. Finally, it checks if the second water level detection device detects a water level signal. If so, it displays a Level 3 alarm and sends a rescue request to the rescue platform.

[0067] The flowchart shows how this application intelligently selects the most suitable response path based on the user's presence and the vehicle's operating conditions, achieving seamless and automated control from risk warning and proactive vehicle protection to final rescue, significantly improving vehicle safety in different water-related scenarios.

[0068] The following describes a vehicle wading control system provided by an embodiment of this application. The vehicle wading control system described below can be referred to in correspondence with the vehicle wading control method described above.

[0069] Based on the same inventive concept, and corresponding to any of the above embodiments, this application also provides a vehicle wading control system, see [link to relevant documentation]. Figure 7 , Figure 7 This is a schematic diagram of a vehicle wading control system provided in an embodiment of this application, as shown below. Figure 7 As shown, the vehicle wading control system includes: vehicle controller, vehicle wading detection device, vehicle suspension, air intake system, and air conditioning system.

[0070] The vehicle wading detection device is connected to the vehicle controller, which in turn connects to the vehicle suspension to control the suspension in raising the vehicle chassis. The vehicle controller also connects to the air intake and / or air conditioning systems to close their air inlets. Optionally, the vehicle wading detection device, suspension, air intake, and air conditioning systems are connected to the vehicle controller via the vehicle's built-in network, such as a CAN bus or Ethernet, and necessary hardwiring, thus forming a collaborative vehicle wading control system.

[0071] Specifically, the vehicle wading detection device includes at least one water level detection device, and the at least one water level detection device includes a first water level detection device disposed outside the driver's cab, wherein the installation height of the first water level detection device in the preset height direction is lower than the minimum height of the driver's cab.

[0072] The vehicle controller is used to execute the vehicle wading control method described in any of the above embodiments.

[0073] In the above Figure 7 Based on the provided embodiments, optionally, at least one of the water level detection devices further includes: a second water level detection device disposed in a preset bottom area inside the cockpit, the second water level detection device also being connected to the vehicle controller.

[0074] In this embodiment, the vehicle controller is also connected to the vehicle door lock control system and the window control system. When the second water level detection device detects a water level signal, it indicates that external water has entered the driver's cabin. At this time, the vehicle controller can simultaneously send control commands to the vehicle door lock control system and the window control system to drive the door locks to unlock and the windows (including the sunroof) to open, so as to quickly open up the vehicle's escape route.

[0075] In the above Figure 7 Based on the provided embodiments, this application also provides a possible implementation of a water level detection device. Figure 8 This is a schematic diagram of a water level detection device provided in an embodiment of this application. Figure 8 As shown, the water level detection device includes: a housing, a water level sensor, an inlet filter screen, and an outlet filter screen.

[0076] The diameter of the inlet of the housing is smaller than the diameter of the outlet. The water level sensor is installed in the internal cavity of the housing. The inlet filter covers the inlet, and the outlet filter covers the outlet.

[0077] Specifically, the housing is a tubular or specific cavity structure, with an inlet and an outlet. The diameter of the inlet is smaller than that of the outlet, so that when water enters the housing from the inlet, it can be smoothly and quickly discharged from the outlet, preventing water from lingering inside the housing. This allows the water to be drained quickly after wading, effectively preventing false alarms from the water level sensor caused by a small amount of water accumulation.

[0078] The water level sensor is housed within the internal cavity of the housing. In a preferred embodiment, the water level sensor is a capacitive sensor; when it comes into contact with water flow, the dielectric properties change, thereby generating a corresponding water level signal, which is transmitted to the vehicle controller via the CAN bus.

[0079] The inlet filter screen covers the inlet of the housing, and the outlet filter screen covers the outlet of the housing. This prevents foreign objects such as leaves and mud from entering the housing through the inlet or outlet, which could contaminate the water level sensor or block the pipes, affecting the drainage function and causing the water level detection device to malfunction or give false alarms. This improves the reliability and durability of the water level detection device.

[0080] Figure 9 This is a schematic diagram illustrating the installation of the water level detection device provided in an embodiment of this application. Figure 9 As shown, in this embodiment, the water level detection device includes a first water level detection device and a second water level detection device, which are installed at different locations on the vehicle to achieve comprehensive monitoring of the vehicle's internal and external water conditions. The first water level detection device is installed at the front of the vehicle chassis, 30cm above the ground, below the lowest point of the chassis, allowing it to contact external water accumulation during vehicle operation or parking, and is used to monitor changes in the external water level in real time. The second water level detection device is installed inside the driver's cabin, specifically below the driver's seat, in a pre-defined bottom area of ​​the cabin, and is capable of detecting water intrusion into the cabin.

[0081] This combined internal and external installation layout enables comprehensive protection, from external water wading warning to internal water ingress warning, thereby effectively improving vehicle safety in complex water wading scenarios.

[0082] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the beneficial effects of the vehicle wading control system provided in this application correspond to and are substantially the same as the beneficial effects of the vehicle wading control method provided in the above embodiments, and other technical features in the vehicle wading control system are consistent with the features disclosed in the hardware description in any of the aforementioned method embodiments, and will not be repeated here.

[0083] Based on the vehicle wading control system provided in the above embodiments, this application also provides a possible implementation of the vehicle. The vehicle includes: a vehicle body, and the vehicle wading control system of any of the above embodiments disposed on the vehicle body.

[0084] Based on the same inventive concept, the vehicle has the vehicle wading control function as described in any of the above method embodiments, and has the beneficial effects of the corresponding embodiments, which will not be repeated here.

[0085] Based on the same inventive concept, corresponding to the methods of any of the above embodiments, this application also provides a computer-readable storage medium storing computer instructions for causing a computer to execute the vehicle operation data acquisition method as described in any of the above embodiments, and having the beneficial effects of the corresponding method embodiments, which will not be repeated here.

[0086] The computer-readable storage media in this application embodiment include various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0087] Furthermore, in the description of the embodiments of the present invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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 the present invention based on the specific circumstances.

[0088] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A method for controlling vehicle wading through water, characterized in that, A vehicle controller for use in a vehicle, the vehicle being equipped with a vehicle wading detection device, the vehicle wading detection device including at least one water level detection device, the at least one water level detection device including: a first water level detection device disposed outside the driver's cabin, the first water level detection device being installed at a height lower than the minimum height of the driver's cabin in a preset height direction, the method including: If the first water level detection device detects a water level signal for the first time, the vehicle chassis will be raised. After the vehicle chassis lifting operation is performed, if the first water level detection device detects a water level signal again, the air intake of the vehicle's air intake system and / or air conditioning system will be closed.

2. The method according to claim 1, characterized in that, At least one of the water level detection devices further includes: a second water level detection device disposed in a predetermined bottom area within the cockpit, and the method further includes: If the second water level detection device detects a water level signal, it will open the vehicle escape route.

3. The method according to claim 2, characterized in that, If the vehicle is in remote monitoring mode, the method further includes: If the first water level detection device detects a water level signal for the first time, it will send a level one alarm message to the user. If the first water level detection device detects the water level signal again, it will send a level two alarm message to the user. If the second water level detection device detects a water level signal, it will send a level 3 alarm message to the user and send a rescue request message to the rescue platform.

4. The method according to claim 2, characterized in that, If the vehicle is in local stationary detection mode or driving through water detection mode, the method further includes: If the first water level detection device detects a water level signal for the first time, it will display a level one alarm message through the instrument equipment; If the first water level detection device detects a water level signal again, it will display a secondary alarm message through the instrument and issue an audible and visual alarm signal. If the second water level detection device detects a water level signal, it will display a level three alarm message through the instrument and send a rescue request message to the rescue platform.

5. The method according to claim 4, characterized in that, If the vehicle is in a wading detection mode, the method further includes: If the first water level detection device detects a water level signal again, it will issue a speed limit confirmation message, which is used to request the user to confirm whether to drive through water at a preset speed limit.

6. The method according to claim 1, characterized in that, The method further includes: (The vehicle is in remote monitoring mode or local stationary detection mode.) If the first water level detection device detects a water level signal again, the power system shall be prohibited from starting.

7. A vehicle wading control system, characterized in that, The vehicle wading control system includes: a vehicle controller, a vehicle wading detection device, a vehicle suspension, an air intake system, and an air conditioning system; the vehicle wading detection device includes at least one water level detection device, and the at least one water level detection device includes a first water level detection device disposed outside the driver's cabin, the first water level detection device being installed at a height lower than the minimum height of the driver's cabin in a preset height direction; the vehicle wading detection device is connected to the vehicle controller, the vehicle controller is connected to the vehicle suspension to control the vehicle suspension to perform a vehicle chassis raising operation; the vehicle controller is also connected to the air intake system and the air conditioning system to close the air intake of the air intake system and / or the air intake of the air conditioning system; The vehicle controller is used to execute the vehicle wading control method according to any one of claims 1-6.

8. The method according to claim 7, characterized in that, At least one of the water level detection devices further includes: a second water level detection device disposed in a predetermined bottom area within the cockpit, the second water level detection device being connected to the vehicle controller.

9. The method according to claim 7, characterized in that, The water level detection device includes: a housing, a water level sensor, an inlet filter screen, and an outlet filter screen; the diameter of the inlet of the housing is smaller than the diameter of the outlet; the water level sensor is disposed in the internal cavity of the housing; the inlet filter screen covers the inlet; and the outlet filter screen covers the outlet.

10. A vehicle, characterized in that, The vehicle includes: a vehicle body, and a vehicle wading control system according to any one of claims 7-9 disposed on the vehicle body.

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