Battery pack processing method and device, electronic equipment and vehicle

Abstract

The invention provides a battery pack processing method and device, electronic equipment and a vehicle, and the method comprises the steps: obtaining the water depth pressure, the vehicle speed and the inertial measurement unit angle of the vehicle under the condition of detecting that the vehicle wades into water; if the water depth pressure, the vehicle speed and the inertial measurement unit angle meet the first preset condition, the vehicle is controlled to be in high voltage, and the battery insulation value, the vehicle door state and the in-vehicle vital sign state of the vehicle are recognized; if the water depth pressure, the battery insulation value, the vehicle door state and the in-vehicle vital sign state meet a second preset condition, a battery pack of the vehicle is unlocked; under the condition that it is determined that the battery pack of the vehicle is successfully unlocked, if the water depth pressure continues to rise, the battery pack of the vehicle is automatically separated, and the battery pack is controlled to send position information; and tracking and salvaging the battery pack of the separated vehicle based on the position information. The battery pack is separated at a proper time, so that the property safety of passengers is protected to the maximum extent, and the escape time is bought for the passengers.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and in particular to a battery pack processing method, apparatus, electronic device, and vehicle. Background Technology

[0002] With the increasing popularity of new energy vehicles, safety issues in water-related scenarios, such as wading and submersion, are becoming increasingly prominent. Currently, the industry generally adopts high-level protective shell sealing solutions for battery pack waterproofing to prevent liquid intrusion under specific time and water pressure conditions. However, this solution can only be used in scenarios involving brief immersion and splashing, and cannot guarantee the absolute sealing of the battery pack when the vehicle is submerged in water for extended periods under deep water pressure. If this seal fails, the leakage of high-voltage electricity from the battery will cause the water to become electrified, posing a fatal electric shock threat to occupants and rescue personnel. Furthermore, prolonged immersion of the battery pack in water will pollute the aquatic environment, thereby endangering human health. Based on this, some vehicles are designed with mechanical structures that separate the battery pack from the vehicle body upon collision, aiming to quickly reduce the risk of high voltage after an accident.

[0003] However, this separation design relies on a single trigger condition—a collision signal. Its judgment logic has limitations, failing to effectively identify non-collision hazards such as "slowly falling into water." This results in the heavy battery pack failing to detach in time during the crucial vehicle floating window, accelerating the vehicle's sinking and significantly shortening the golden time for occupants to escape. Furthermore, this single-criteria mode can also trigger battery pack detachment when separation is unnecessary (e.g., a severe impact from a pothole). Such false triggering not only instantly causes the vehicle to lose power, leading to secondary accidents, but also causes significant property damage to occupants due to the unnecessary ejection of the battery pack, negatively impacting their experience. Summary of the Invention

[0004] In view of this, this application aims to propose a battery pack handling method, device, electronic device, and vehicle to solve the problems of current battery separation designs relying solely on collision signals, which cannot identify non-collision scenarios such as slow descent into water, resulting in shortened escape time; and the risk of accidental triggering due to road impacts, leading to power interruption and property damage. The specific technical solution is as follows: According to a first aspect of this application, a battery pack processing method is provided, the method comprising: When a vehicle is detected wading through water, the vehicle's water depth, pressure, speed, and inertial measurement unit angle are obtained. If the water depth pressure, vehicle speed and inertial measurement unit angle meet the first preset conditions, then control the vehicle to apply high pressure and identify the vehicle's battery insulation value, door status and vital signs status inside the vehicle. If the water depth pressure, battery insulation value, vehicle door status, and in-vehicle vital signs status meet the second preset conditions, then the vehicle's battery pack will be unlocked. If the water pressure continues to rise after the vehicle's battery pack has been successfully unlocked, the vehicle's battery pack will be automatically separated and the battery pack will be controlled to send location information. The battery pack of the separated vehicle is tracked and retrieved based on the location information.

[0005] Optionally, if the water depth pressure, vehicle speed, and inertial measurement unit angle meet a first preset condition, then controlling the vehicle to apply high pressure includes: Identify the change in the angle of the inertial measurement unit within a preset time period; If the water depth pressure is greater than the first water depth threshold, the vehicle speed is less than the vehicle speed threshold, and the change in the angle of the inertial measurement unit is greater than the angle threshold, then the vehicle is controlled to apply high pressure.

[0006] Optionally, the step of controlling the vehicle to apply high pressure if the water depth pressure is greater than a first water depth threshold, the vehicle speed is less than a vehicle speed threshold, and the change in the angle of the inertial measurement unit is greater than an angle threshold, further includes: If the water depth pressure is greater than the first water depth threshold, the water depth pressure of the vehicle is continuously identified by the water depth pressure sensor according to a preset cycle. If the water pressure of the vehicle is greater than a first water depth threshold, the vehicle speed is less than a vehicle speed threshold, and the change in the angle of the inertial measurement unit is greater than an angle threshold in each of several preset cycles, then the vehicle is controlled to apply high pressure.

[0007] Optionally, if the water depth pressure, battery insulation value, door status, and in-vehicle vital signs status meet the second preset condition, then unlocking the vehicle's battery pack includes: The duration during which the water depth pressure exceeds a first water depth threshold is identified; If the duration is greater than the duration threshold, the battery insulation value is less than the battery insulation threshold, the door is closed and the vital signs inside the vehicle are present, then the vehicle's battery pack is unlocked. Alternatively, if the water depth pressure is greater than the second water depth threshold, the battery insulation value is less than the battery insulation threshold, the vehicle door is closed, and the vehicle's occupant shows signs of life, then the vehicle's battery pack is unlocked.

[0008] Optionally, if the water pressure continues to rise after successfully unlocking the vehicle's battery pack, the automatic separation of the vehicle's battery pack includes: If the water pressure continues to rise after confirming that the vehicle's battery pack has been successfully unlocked, the target interface will display that the vehicle has entered battery separation mode. If the occupant performs the first operation based on the battery separation mode within the target preset time period, the vehicle is controlled to enter the battery termination separation mode. If the occupant performs a second operation based on the battery separation mode within the target preset time period, the vehicle will be controlled to automatically separate the vehicle's battery pack.

[0009] Optionally, a positioning communication device is pre-embedded in the battery pack of the vehicle, which is used to send location information to a remote backend after the battery pack falls into the water.

[0010] Optionally, before acquiring the vehicle's water depth pressure, vehicle speed, and inertial measurement unit angle, the method further includes: Identify the status of the vehicle's water depth and pressure sensors; If the water depth pressure sensor is in a failed state, the automatic disconnection function of the vehicle's battery pack is disabled, and the manual disconnection option of the vehicle's battery pack is displayed on the target interface. In response to an occupant's input of a manual disconnection option, the vehicle's battery pack is actively disconnected.

[0011] According to a second aspect of this application, a battery pack processing apparatus is provided, the apparatus comprising: The acquisition module is used to acquire the vehicle's water depth pressure, vehicle speed, and inertial measurement unit angle when the vehicle is detected to be wading through water. The control module is used to control the vehicle to apply high pressure if the water depth pressure, vehicle speed and inertial measurement unit angle meet the first preset conditions, and to identify the vehicle's battery insulation value, door status and vital signs status inside the vehicle. The unlocking module is used to unlock the vehicle's battery pack if the water depth pressure, battery insulation value, door status, and in-vehicle vital signs status meet a second preset condition. An automatic separation module is used to automatically separate the vehicle's battery pack and control the battery pack to send location information if the water pressure continues to rise after the vehicle's battery pack has been successfully unlocked. The tracking and retrieval module is used to track and retrieve the battery pack of the separated vehicle based on the location information.

[0012] According to another aspect of this application, an electronic device is also provided, comprising: processor; Memory used to store the processor's executable instructions; The processor is configured to execute the instructions to implement the battery pack processing method described above.

[0013] According to another aspect of this application, a vehicle is also provided, including the aforementioned battery pack handling device.

[0014] The battery pack processing method provided in this application, when detecting that the vehicle is wading through water, acquires the vehicle's water depth, pressure, speed, and inertial measurement unit angle. This multi-information fusion perception step aims to achieve accurate identification of the water wading scenario by comprehensively analyzing the vehicle's external environment (water depth), dynamics (vehicle speed), and attitude (angle), thereby avoiding reliability problems caused by misjudgment of a single signal from the source. If the water depth pressure, vehicle speed, and inertial measurement unit angle meet the first preset conditions, the vehicle is controlled to apply high pressure, fundamentally eliminating the fatal electric shock threat to occupants and external rescue personnel caused by the conductivity of water. At the same time, the vehicle's battery insulation value, door status, and vital signs inside the vehicle are identified, and key status parameters are collected for subsequent decision-making. If the water depth pressure, battery insulation value, door status, and vital signs inside the vehicle meet the second preset conditions, the vehicle's battery pack is unlocked. This step forms a secondary confirmation mechanism. The "water depth pressure" and "battery insulation value" jointly verify the objective existence of liquid intrusion and its danger, and the "door status" and "vital signs inside the vehicle" assess the actual risk of personnel being trapped inside the vehicle. This ensures that the battery pack unlocking preparatory action is initiated only when both "danger confirmation" and "personnel entrapment" are simultaneously established. This prioritizes life safety while minimizing the risk of significant property damage from accidental triggering in non-extreme scenarios (such as brief wading or when the vehicle is unattended), enhancing product reliability and occupant trust. If the water pressure continues to rise after successful battery pack unlocking, the battery pack automatically detaches. This detachment operation is determined by integrating multiple conditions to avoid misjudgments. Separating the battery pack immediately and significantly reduces the vehicle's overall weight, effectively slowing the sinking speed and providing occupants with a crucial window for escape or awaiting rescue. The system also controls the battery pack to transmit location information. Tracking and retrieving the detached battery pack based on this location information prevents prolonged immersion in water, thus protecting the aquatic environment and safeguarding ecological safety.

[0015] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, specific embodiments of this application are given below. Attached Figure Description

[0016] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings: Figure 1 This is a flowchart of the steps of a battery pack processing method provided in this application; Figure 2 yes Figure 1 The flowchart shown is a step 103 of a battery pack processing method provided in this application; Figure 3 yes Figure 1 The flowchart shown is a step 104 of a battery pack processing method provided in this application; Figure 4 This is a schematic diagram of the structure of a battery pack processing device provided in this application; Figure 5 This is a schematic diagram of the structure of an electronic device provided in this application. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this application clearer, the various embodiments of this application will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details have been provided in the various embodiments of this application to facilitate a better understanding of the application. However, the technical solutions claimed in this application can be implemented even without these technical details and with various variations and modifications based on the following embodiments. The division of the various embodiments below is for ease of description and should not constitute any limitation on the specific implementation of this application. The various embodiments can be combined with and referenced by each other without contradiction.

[0018] Currently, the industry generally adopts high-level waterproof sealing solutions (such as IP67) for battery packs to ensure water safety of new energy vehicles. While this solution is effective in dealing with brief splashes, its sealing performance cannot be absolutely guaranteed under prolonged deep-water pressure immersion after a vehicle falls into water. If the battery pack fails due to water pressure intrusion, high-voltage electricity will leak into the water, posing a fatal electric shock threat to occupants and rescue personnel. Furthermore, since the battery pack itself can account for a significant portion of the vehicle's weight, it will significantly accelerate the vehicle's sinking after it falls into water, greatly shortening the effective escape time for occupants. Currently, some vehicles are equipped with battery pack separation designs triggered by collision signals; however, this design relies on a single operating condition and has significant functional limitations. On the one hand, it cannot effectively identify "slow descent" scenarios without severe collisions, resulting in failure to remove the battery pack in time during the golden period of vehicle afloat, missing the best opportunity for evacuation; on the other hand, it is prone to false triggering under non-dangerous conditions, such as a severe impact when the vehicle drives over potholes, which may cause the battery pack to be unnecessarily ejected. Such accidental triggering not only causes the vehicle to lose power instantly, increasing the risk of secondary accidents, but also results in significant property damage to occupants due to the accidental detachment of the battery pack, severely impacting user experience and product trust. Based on these issues, this application proposes a battery pack handling method. (Refer to...) Figure 1The diagram illustrates a flowchart of a battery pack processing method provided in this application, the method comprising: Step 101: If the vehicle is detected to be wading through water, obtain the vehicle's water depth pressure, vehicle speed, and inertial measurement unit angle.

[0019] The inertial measurement unit (IMU) angle in this application refers to the vehicle's tilt angle relative to the horizontal ground. This can include pitch angle (the angle at which the vehicle's front end tilts upwards or downwards) and roll angle (the angle at which the vehicle tilts to the left or right). This parameter can be used to determine whether the vehicle's current attitude is abnormal, thus accurately distinguishing the dangerous scenario of "vehicle falling into water" from other ordinary "vehicle wading through water" scenarios. For example, when a vehicle is driving through a flooded road, its body attitude remains basically horizontal and stable. Even if the water reaches the bottom of the door, the IMU angle will not show a continuous and significant change. However, when a vehicle plunges into a river or falls into a pond, its attitude will inevitably undergo a drastic and abnormal change, with an abnormally large increase in pitch or roll angle.

[0020] The water depth pressure of this vehicle is obtained through a water depth pressure sensor. Therefore, it is necessary to determine the status of the water depth pressure sensor. If the water depth pressure sensor is malfunctioning, it is impossible to determine whether the vehicle needs to detach the battery pack based on the water depth pressure. In this case, the automatic battery pack detachment function of the vehicle needs to be disabled to prevent abnormal detachment of the battery pack and property damage to the occupants. However, to ensure the safety of the occupants, it is also necessary to provide them with the option to manually control the detachment of the battery pack. The occupants' intentions are identified through their manual operation, allowing them to manually control the detachment of the battery pack and maximize their escape time. Therefore, the steps for determining the status of the water depth pressure sensor and the subsequent operations based on the determination results include: Identify the status of the vehicle's water depth and pressure sensors; If the water depth pressure sensor is in a failed state, the automatic disconnection function of the vehicle's battery pack is disabled, and the manual disconnection option of the vehicle's battery pack is displayed on the target interface. In response to the occupant's input of the manual disconnect option, the vehicle's battery pack is actively disconnected.

[0021] When the critical water depth and pressure sensor fails, the above steps will automatically disable the automatic separation function. This design effectively prevents accidental separation or failure to separate due to missing or incorrect sensor data. It fundamentally avoids property damage and safety risks caused by the accidental disposal of the battery pack in non-dangerous conditions, or the inability to perform separation due to reliance on incorrect data in real danger, thus missing the opportunity to escape. At the same time, by enabling and displaying the manual separation option on the target interface, the final decision-making and control are handed over to the occupants. This ensures that in the specific fault scenario of sensor failure, the occupants can still actively trigger separation based on their own judgment of the environment, preserving a last reliable manual intervention channel for escape. This significantly improves the reliability and personal safety of the entire solution under component failure conditions.

[0022] Step 102: If the water depth pressure, vehicle speed and inertial measurement unit angle meet the first preset conditions, control the vehicle to apply high pressure and identify the vehicle's battery insulation value, door status and vital signs status inside the vehicle.

[0023] This application collects water depth pressure, vehicle speed, and inertial measurement unit (IMU) angle data to determine whether a vehicle is in a water-related scenario. When the water depth pressure exceeds a first water depth threshold, it is determined that the vehicle is submerged in sufficiently deep water, ruling out the influence of shallow water or road surface moisture. When the vehicle speed is below a speed threshold, it is determined that the vehicle is essentially stationary or at a very low speed, a state consistent with the typical characteristic of a vehicle rapidly losing speed due to resistance after entering water, further ruling out the possibility of wading through water during normal driving. For the IMU angle, its change over a preset time period needs to be identified. Because the IMU angle is the vehicle's tilt angle relative to the horizontal ground, judging whether a vehicle is in water solely based on the IMU angle could lead to misjudgment. For example, when a vehicle is going uphill, the IMU angle will gradually increase and exceed the angle threshold. However, because the vehicle speed is below the speed threshold, the IMU angle changes slowly when the vehicle is going uphill. However, when a vehicle falls into water, even if the vehicle speed is less than the speed threshold, the inertial measurement unit (IMU) angle will still change drastically in the initial period. Therefore, this application determines whether the vehicle has fallen into water based on the change value of the IMU angle. Furthermore, as time increases, the vehicle will reach a relatively stable posture with the water, at which point the change value of the IMU angle will tend to stabilize. Therefore, it is necessary to obtain the change value of the IMU angle within a short preset time period after determining that the vehicle has just entered the water (this can be set to identify the change value of the IMU angle within the first 10 seconds after detecting the vehicle entering the water). When the change value of the IMU angle within the preset time period is greater than the angle threshold, the vehicle is in a state of uncontrolled attitude change, and it is determined that the vehicle is not normally parked, but is in a scenario of "falling" or "rolling" into the water. Therefore, step 102, "if the water depth pressure, vehicle speed, and IMU angle meet the first preset condition, then control the vehicle to apply high pressure," specifically includes the following sub-steps: Sub-step 1021: Identify the change in the angle of the inertial measurement unit within a preset time period.

[0024] Sub-step 1022: If the water depth pressure is greater than the first water depth threshold, the vehicle speed is less than the vehicle speed threshold, and the change value of the inertial measurement unit angle is greater than the angle threshold, then control the vehicle to apply high pressure.

[0025] The above steps, by determining whether the change in the IMU angle within a preset time exceeds a threshold, can effectively distinguish whether the vehicle is in a relatively stable static immersion or slow wading, or whether it has experienced an uncontrolled fall into the water (such as plunging into a river or steep slope) that causes a drastic change in the vehicle's posture. This design uses "abnormal dynamic posture" as one of the key criteria, forming a triple verification with the conditions of "presence of water pressure" and "vehicle stationary". This significantly reduces the possibility of falsely triggering high-pressure commands due to non-falling-in-water impacts such as road bumps or brief wading. While ensuring a rapid response to real falling-in-water dangers, it greatly improves the accuracy of control and the robustness of the entire safety logic.

[0026] To avoid false triggering, this application sets a detection cycle when detecting water depth pressure, and then judges the water depth pressure within a certain number of consecutive preset cycles. If the water depth pressure is greater than a first water depth threshold in each of the several preset cycles, the vehicle speed and inertial measurement unit angle will be further judged. If the first preset condition is met, the vehicle will be controlled to lower the high pressure. Therefore, further, step 102, "if the water depth pressure, vehicle speed, and inertial measurement unit angle meet the first preset condition, then control the vehicle to lower the high pressure," specifically includes the following sub-steps: Sub-step 1023: If the water depth pressure is greater than the first water depth threshold, the water depth pressure of the vehicle is continuously identified by the water depth pressure sensor according to a preset cycle. Sub-step 1024: If the water depth pressure of the vehicle is greater than the first water depth threshold in each of several preset cycles, the vehicle speed is less than the vehicle speed threshold, and the change value of the angle of the inertial measurement unit is greater than the angle threshold, then control the vehicle to lower the pressure.

[0027] The above steps effectively filter out interference signals caused by instantaneous fluctuations in sensors, brief wading, or large water splashes by requiring the water depth pressure to be detected to exceed a threshold in each preset cycle of several consecutive cycles. This elevates the judgment basis from a single anomaly to evidence of a persistent danger. This design, combined with the conditions of "the vehicle remaining stationary" and "a sudden change in vehicle posture," constitutes a judgment logic with extremely high confidence. It ensures that a high-pressure command is only triggered when the vehicle is indeed trapped in deep water and in an uncontrollable posture. Ultimately, while ensuring timely response, it minimizes the risk of false triggering in non-dangerous scenarios.

[0028] After controlling the vehicle to reduce high voltage, this application further identifies the vehicle's battery insulation value, door status, and the vital signs of those inside the vehicle. The battery insulation value is an electrical parameter used to measure the insulation performance between the high-voltage circuit of a new energy vehicle and the vehicle chassis (ground). Identifying the battery insulation value typically involves measuring the resistance between the high-voltage positive and negative terminals inside the battery pack and the vehicle's metal body (as a grounding reference). A higher resistance value indicates better insulation performance, making it less likely for current to leak into the vehicle body. When the battery pack is damaged by liquid intrusion, the performance of its insulation material deteriorates, leading to a significant decrease in the insulation resistance between the high-voltage electricity and the vehicle body. Furthermore, once the insulation value drops to a dangerous level (battery insulation threshold), the entire metal frame and body of the vehicle may become electrified. If someone (whether a passenger or an underwater rescuer) comes into contact with the vehicle body at this time, a current path will be formed, leading to a fatal electric shock. Therefore, this application determines whether the battery pack has been flooded and poses a substantial danger by identifying the vehicle's battery insulation value. The vital signs of those inside the vehicle can be identified through in-cabin bio-radar, infrared cameras, seat pressure sensors, microphones, etc.

[0029] Step 103: If the water depth pressure, battery insulation value, vehicle door status, and vehicle occupant vital signs status meet the second preset conditions, then unlock the vehicle's battery pack.

[0030] The second preset condition set in this application requires the following for water depth pressure: the duration for which the water depth pressure is greater than the first water depth threshold is greater than a duration threshold (the duration threshold can be set to a small time length such as 2S or 3S), or the water depth pressure, after exceeding the first water depth threshold, continues to rise and exceeds the second water depth threshold; therefore, the second water depth threshold > the first water depth threshold. The requirement for battery insulation value is: the battery insulation value is less than the battery insulation threshold. The requirement for door status is: the door status is closed. The requirement for the status of vital signs inside the vehicle is: vital signs are present inside the vehicle. Therefore, step 103 specifically includes the following sub-steps, such as... Figure 2 As shown: Sub-step 1031: Identify the duration during which the water depth pressure is greater than the first water depth threshold.

[0031] Sub-step 1032: If the duration is greater than the duration threshold, the battery insulation value is less than the battery insulation threshold, the door is closed and the vehicle's vital signs are present, then unlock the vehicle's battery pack. Alternatively, if the water pressure is greater than the second water depth threshold, the battery insulation value is less than the battery insulation threshold, the door is closed, and the occupants show signs of life, then the vehicle's battery pack will be unlocked.

[0032] The above steps, by requiring the water pressure to exceed the first water depth threshold for a duration that reaches a time threshold, effectively verify that the vehicle is in a stable deep-water immersion state rather than a brief impact. This design, combined with the conditions of decreased battery insulation (confirming leakage risk), closed doors, and the presence of vital signs (confirming entrapment), ensures that the unlocking command is only initiated when a real danger occurs and entrapment is urgently needed. At the same time, a parallel path of "water pressure greater than a higher second threshold" is established, providing an emergency response mechanism for extreme scenarios of rapid vehicle submersion. Once the water pressure rises sharply to a critical level, even if the duration is short, unlocking preparation can be initiated immediately. This ensures that reliable decisions prioritizing the protection of life can be made in a timely manner in all kinds of real-life submersion emergencies while meticulously preventing accidental triggering.

[0033] It should be noted that if, when determining whether the second preset conditions for water depth and pressure, battery insulation value, door status, and occupant vital signs are met, the door status is detected as open, or the occupant vital signs status is detected as absent, it is presumed that the occupants may have escaped on their own. In this case, there is no need to unlock or disconnect the battery pack; instead, a warning message is sent to protect the occupants' property. The warning message may include information such as vehicle location, vehicle flooding, door open, and battery high voltage being deactivated, facilitating rescue efforts to confirm the safety of the occupants and provide assistance. The steps involved at this time include: If the vehicle door is open, or if there are no vital signs inside the vehicle, a warning message will be sent.

[0034] It should be noted that when there are no signs of life inside the vehicle, keeping the battery pack unlocked or disconnected allows limited rescue resources to be concentrated on rescuing those who may survive, maximizing the efficiency of emergency rescue and conforming to humanitarian rescue principles.

[0035] Step 104: If the water pressure continues to rise after confirming that the vehicle's battery pack has been successfully unlocked, the vehicle's battery pack will be automatically separated and the battery pack will be controlled to send location information.

[0036] After unlocking the vehicle's battery pack, this application will also detect the unlocking success. If unlocking is successful, it will continue to monitor water depth and pressure. If the water depth and pressure continue to rise after the battery pack is successfully unlocked, it will control the battery pack to automatically separate. However, this application also includes a manual intervention mechanism. That is, before controlling the automatic separation of the battery pack, within a certain period of time (a target preset duration), the target interface (such as the vehicle screen interface) will display that the vehicle has entered battery separation mode. Then, if the occupant performs a first operation based on this display (such as pressing and holding the emergency button for 3 seconds, or selecting to terminate battery separation via voice, special gestures, or clicking on the screen options on the target interface), the separation process will be forcibly terminated, and the vehicle will enter the battery termination separation mode. If the occupant performs a second operation based on this display within the target preset duration (such as selecting to perform battery separation via voice, special gestures, or clicking on the screen options), the vehicle will automatically separate the vehicle's battery pack. Therefore, step 104 specifically includes the following sub-steps, such as... Figure 3 As shown: Sub-step 1041: If the water pressure continues to rise after confirming that the vehicle's battery pack has been successfully unlocked, the target interface will display that the vehicle has entered the battery separation mode.

[0037] Sub-step 1042: If the occupant performs the first operation based on the battery separation mode within the target preset time period, then control the vehicle to enter the battery termination separation mode.

[0038] Sub-step 1043: If the occupant performs a second operation based on the battery separation mode within the target preset time period, then control the vehicle to automatically separate the vehicle's battery pack.

[0039] The above steps involve intelligently monitoring changes in water depth and pressure. Once the battery pack is successfully unlocked, the battery separation mode is automatically triggered, and the status is displayed in real time on the target interface, facilitating timely response by the occupants. If the occupants perform the first operation within the specified time, the system can identify their intentions, terminate the separation process, and protect their property. If the second operation is performed, the vehicle automatically completes the battery pack separation, significantly reducing the overall weight of the vehicle and effectively slowing down the sinking speed, thus providing the occupants with a crucial window of opportunity to escape or await rescue.

[0040] This application, while controlling the vehicle to automatically disconnect the battery pack, will also open the sunroof to provide an escape route for the occupants.

[0041] Because a battery pack sinking into the sea is like planting a "chemical time bomb" on the ocean floor: it can poison marine life in the short term and endanger human health through the food chain in the long term. Current technology makes it impossible to track the battery pack's location once it enters deep water (such as the seabed) after separation, and prolonged immersion poses significant safety risks and pollutes the aquatic environment. Therefore, this application pre-embeds a positioning and communication device within the vehicle's battery pack. This device sends location information, such as the latitude and longitude coordinates of the battery pack's location, to a remote backend after the battery pack falls into the water.

[0042] Step 105: Track and retrieve the battery pack of the separated vehicle based on location information.

[0043] In this application, the battery pack sends its location information to a remote control after falling into the water. This allows salvage personnel to quickly track the battery pack's location and retrieve it, preventing water pollution. Furthermore, to facilitate rapid identification of the battery pack underwater, the battery pack casing is designed to be orange (the color can be adjusted as needed; this application does not specify a particular color). This design makes it easier for salvage personnel to quickly identify the battery pack underwater.

[0044] The battery pack processing method provided in this application, when detecting that the vehicle is wading through water, acquires the vehicle's water depth, pressure, speed, and inertial measurement unit angle. This multi-information fusion perception step aims to achieve accurate identification of the water wading scenario by comprehensively analyzing the vehicle's external environment (water depth), dynamics (vehicle speed), and attitude (angle), thereby avoiding reliability problems caused by misjudgment of a single signal from the source. If the water depth pressure, vehicle speed, and inertial measurement unit angle meet the first preset conditions, the vehicle is controlled to apply high pressure, fundamentally eliminating the fatal electric shock threat to occupants and external rescue personnel caused by the conductivity of water. At the same time, the vehicle's battery insulation value, door status, and vital signs inside the vehicle are identified, and key status parameters are collected for subsequent decision-making. If the water depth pressure, battery insulation value, door status, and vital signs inside the vehicle meet the second preset conditions, the vehicle's battery pack is unlocked. This step forms a secondary confirmation mechanism. The "water depth pressure" and "battery insulation value" jointly verify the objective existence of liquid intrusion and its danger, and the "door status" and "vital signs inside the vehicle" assess the actual risk of personnel being trapped inside the vehicle. This ensures that the battery pack unlocking preparatory action is initiated only when both "danger confirmation" and "personnel entrapment" are simultaneously established. This prioritizes life safety while minimizing the risk of significant property damage from accidental triggering in non-extreme scenarios (such as brief wading or when the vehicle is unattended), enhancing product reliability and occupant trust. If the water pressure continues to rise after successful battery pack unlocking, the battery pack automatically detaches. This detachment operation is determined by integrating multiple conditions to avoid misjudgments. Separating the battery pack immediately and significantly reduces the vehicle's overall weight, effectively slowing the sinking speed and providing occupants with a crucial window for escape or awaiting rescue. The system also controls the battery pack to transmit location information. Tracking and retrieving the detached battery pack based on this location information prevents prolonged immersion in water, thus protecting the aquatic environment and safeguarding ecological safety.

[0045] Reference Figure 4 The diagram shows a structural schematic of a battery pack processing device provided in this application, the device comprising: The acquisition module 201 is used to acquire the water depth pressure, vehicle speed and inertial measurement unit angle of the vehicle when the vehicle is detected to be wading through water.

[0046] The control module 202 is used to control the vehicle to apply high pressure if the water depth pressure, vehicle speed and inertial measurement unit angle meet the first preset conditions, and to identify the vehicle's battery insulation value, door status and vital signs status inside the vehicle.

[0047] The unlocking module 203 is used to unlock the vehicle's battery pack if the water depth pressure, battery insulation value, door status, and vital signs status inside the vehicle meet the second preset conditions.

[0048] The automatic separation module 204 is used to automatically separate the vehicle's battery pack and control the battery pack to send location information if the water pressure continues to rise after the vehicle's battery pack has been successfully unlocked.

[0049] The tracking and retrieval module 205 is used to track and retrieve the battery pack of the separated vehicle based on location information.

[0050] Optionally, the control module 202 includes: The first identification submodule is used to identify the change value of the angle of the inertial measurement unit within a preset time period.

[0051] The first control submodule is used to control the vehicle to apply high pressure if the water depth pressure is greater than the first water depth threshold, the vehicle speed is less than the vehicle speed threshold, and the change value of the inertial measurement unit angle is greater than the angle threshold.

[0052] The second identification submodule is used to continuously identify the vehicle's water depth pressure according to a preset cycle using a water depth pressure sensor if the water depth pressure is greater than the first water depth threshold.

[0053] The second control submodule is used to control the vehicle to apply high pressure if the water depth pressure of the vehicle is greater than the first water depth threshold in each of several preset cycles, the vehicle speed is less than the vehicle speed threshold, and the change value of the angle of the inertial measurement unit is greater than the angle threshold.

[0054] Optionally, the unlocking module 203 includes: The third identification submodule is used to identify the duration during which the water depth pressure is greater than the first water depth threshold.

[0055] The unlocking submodule is used to unlock the vehicle's battery pack if the duration exceeds the duration threshold, the battery insulation value is less than the battery insulation threshold, the door is closed, and the vehicle's vital signs status is that there are vital signs. Alternatively, if the water pressure is greater than the second water depth threshold, the battery insulation value is less than the battery insulation threshold, the door is closed, and the occupants show signs of life, then the vehicle's battery pack will be unlocked.

[0056] Optionally, the automatic separation module 204 includes: The display submodule is used to display on the target interface that the vehicle has entered battery disconnection mode if the water pressure continues to rise after the vehicle's battery pack has been successfully unlocked.

[0057] The third control submodule is used to control the vehicle to enter the battery termination separation mode if the occupant performs the first operation based on the battery separation mode within the target preset time period.

[0058] The fourth control submodule is used to control the vehicle to automatically disconnect the vehicle's battery pack if the occupant performs a second operation based on the battery disconnection mode within a target preset time period.

[0059] Optionally, a positioning communication device is pre-embedded in the vehicle's battery pack, which is used to send location information to a remote backend after the battery pack falls into water.

[0060] Optionally, the battery pack handling device also includes: The identification module is used to identify the status of the vehicle's water depth and pressure sensors.

[0061] The disable module is used to disable the automatic disconnection function of the vehicle's battery pack if the water depth pressure sensor is in a failed state, and to display the manual disconnection option of the vehicle's battery pack on the target interface.

[0062] The response module is used to actively disconnect the vehicle's battery pack in response to the occupant's input of the manual disconnect option.

[0063] The battery pack processing method provided in this application, when detecting that the vehicle is wading through water, acquires the vehicle's water depth, pressure, speed, and inertial measurement unit angle. This multi-information fusion perception step aims to achieve accurate identification of the water wading scenario by comprehensively analyzing the vehicle's external environment (water depth), dynamics (vehicle speed), and attitude (angle), thereby avoiding reliability problems caused by misjudgment of a single signal from the source. If the water depth pressure, vehicle speed, and inertial measurement unit angle meet the first preset conditions, the vehicle is controlled to apply high pressure, fundamentally eliminating the fatal electric shock threat to occupants and external rescue personnel caused by the conductivity of water. At the same time, the vehicle's battery insulation value, door status, and vital signs inside the vehicle are identified, and key status parameters are collected for subsequent decision-making. If the water depth pressure, battery insulation value, door status, and vital signs inside the vehicle meet the second preset conditions, the vehicle's battery pack is unlocked. This step forms a secondary confirmation mechanism. The "water depth pressure" and "battery insulation value" jointly verify the objective existence of liquid intrusion and its danger, and the "door status" and "vital signs inside the vehicle" assess the actual risk of personnel being trapped inside the vehicle. This ensures that the battery pack unlocking preparatory action is initiated only when both "danger confirmation" and "personnel entrapment" are simultaneously established. This prioritizes life safety while minimizing the risk of significant property damage from accidental triggering in non-extreme scenarios (such as brief wading or when the vehicle is unattended), enhancing product reliability and occupant trust. If the water pressure continues to rise after successful battery pack unlocking, the battery pack automatically detaches. This detachment operation is determined by integrating multiple conditions to avoid misjudgments. Separating the battery pack immediately and significantly reduces the vehicle's overall weight, effectively slowing the sinking speed and providing occupants with a crucial window for escape or awaiting rescue. The system also controls the battery pack to transmit location information. Tracking and retrieving the detached battery pack based on this location information prevents prolonged immersion in water, thus protecting the aquatic environment and safeguarding ecological safety.

[0064] Reference Figure 5 This application also provides an electronic device, such as Figure 5 As shown, it includes a processor 301, a communication interface 302, a memory 303, and a communication bus 304, wherein the processor 301, the communication interface 302, and the memory 303 communicate with each other through the communication bus 304. Processor 301, memory 303 for storing processor-executable instructions; The processor 301 is configured to execute the instructions to implement the battery pack processing method described above: When a vehicle is detected wading through water, the vehicle's water depth, pressure, speed, and inertial measurement unit angle are obtained. If the water depth pressure, vehicle speed and inertial measurement unit angle meet the first preset conditions, then control the vehicle to apply high pressure and identify the vehicle's battery insulation value, door status and vital signs status inside the vehicle. If the water depth pressure, battery insulation value, vehicle door status, and in-vehicle vital signs status meet the second preset conditions, then the vehicle's battery pack will be unlocked. If the water pressure continues to rise after the vehicle's battery pack has been successfully unlocked, the vehicle's battery pack will be automatically separated and the battery pack will be controlled to send location information. The battery pack of the separated vehicle is tracked and retrieved based on the location information.

[0065] The communication bus mentioned above can be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus, etc. This communication bus can be divided into address bus, data bus, control bus, etc. For ease of illustration, only one thick line is used to represent it in the diagram, but this does not mean that there is only one bus or one type of bus.

[0066] The communication interface is used for communication between the aforementioned terminal and other devices.

[0067] The memory may include random access memory (RAM) or non-volatile memory, such as at least one disk storage device. Optionally, the memory may also be at least one storage device located remotely from the aforementioned processor.

[0068] The processors mentioned above can be general-purpose processors, including central processing units (CPUs), network processors (NPs), etc.; they can also be digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components.

[0069] In another embodiment provided in this application, a vehicle is also provided, which may specifically include the above-described battery pack processing device.

[0070] In the above embodiments, implementation can be achieved, in whole or in part, through software, hardware, firmware, or any combination thereof. When implemented in software, it can be implemented, in whole or in part, as a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in this application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium accessible to a computer or a data storage device such as a server or data center that integrates one or more available media. The available medium can be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., a solid-state drive (SSD)).

[0071] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0072] The various embodiments in this specification are described in a related manner. Similar or identical parts between embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, the system embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions of the method embodiments.

[0073] The above description is merely a preferred embodiment of this application and is not intended to limit the scope of protection of this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application are included within the scope of protection of this application.

Claims

1. A battery pack processing method, characterized in that, The method includes: When a vehicle is detected wading through water, the vehicle's water depth, pressure, speed, and inertial measurement unit angle are obtained. If the water depth pressure, vehicle speed and inertial measurement unit angle meet the first preset conditions, then control the vehicle to apply high pressure and identify the vehicle's battery insulation value, door status and vital signs status inside the vehicle. If the water depth pressure, battery insulation value, vehicle door status, and in-vehicle vital signs status meet the second preset conditions, then the vehicle's battery pack will be unlocked. If the water pressure continues to rise after the vehicle's battery pack has been successfully unlocked, the vehicle's battery pack will be automatically separated and the battery pack will be controlled to send location information. The battery pack of the separated vehicle is tracked and retrieved based on the location information.

2. The method according to claim 1, characterized in that, If the water depth pressure, vehicle speed, and inertial measurement unit angle meet a first preset condition, then controlling the vehicle to apply high pressure includes: Identify the change in the angle of the inertial measurement unit within a preset time period; If the water depth pressure is greater than the first water depth threshold, the vehicle speed is less than the vehicle speed threshold, and the change in the angle of the inertial measurement unit is greater than the angle threshold, then the vehicle is controlled to apply high pressure.

3. The method according to claim 2, characterized in that, The method of controlling the vehicle to apply high pressure if the water depth pressure is greater than a first water depth threshold, the vehicle speed is less than a vehicle speed threshold, and the change in the angle of the inertial measurement unit is greater than an angle threshold, further includes: If the water depth pressure is greater than the first water depth threshold, the water depth pressure of the vehicle is continuously identified by the water depth pressure sensor according to a preset cycle. If the water depth pressure of the vehicle is greater than a first water depth threshold, the vehicle speed is less than a vehicle speed threshold, and the change value of the angle of the inertial measurement unit is greater than an angle threshold in each of several preset cycles, then the vehicle is controlled to apply high pressure.

4. The method according to claim 1, characterized in that, If the water depth pressure, battery insulation value, door status, and in-vehicle vital signs status meet the second preset condition, then the vehicle's battery pack is unlocked, including: The duration during which the water depth pressure exceeds a first water depth threshold is identified; If the duration is greater than the duration threshold, the battery insulation value is less than the battery insulation threshold, the door is closed and the vital signs inside the vehicle are present, then the vehicle's battery pack is unlocked. Alternatively, if the water depth pressure is greater than the second water depth threshold, the battery insulation value is less than the battery insulation threshold, the vehicle door is closed, and the vehicle's occupant shows signs of life, then the vehicle's battery pack is unlocked.

5. The method according to claim 1, characterized in that, If, after confirming that the vehicle's battery pack has been successfully unlocked, the water pressure continues to rise, the vehicle's battery pack will automatically separate, including: If the water pressure continues to rise after confirming that the vehicle's battery pack has been successfully unlocked, the target interface will display that the vehicle has entered battery separation mode. If the occupant performs the first operation based on the battery separation mode within the target preset time period, the vehicle is controlled to enter the battery termination separation mode. If the occupant performs a second operation based on the battery separation mode within the target preset time period, the vehicle will be controlled to automatically separate the vehicle's battery pack.

6. The method according to claim 1, characterized in that, The vehicle's battery pack is pre-embedded with a positioning and communication device, which is used to send location information to a remote backend after the battery pack falls into the water.

7. The method according to claim 1, characterized in that, Before acquiring the vehicle's water depth pressure, vehicle speed, and inertial measurement unit angle, the following steps are also included: Identify the status of the vehicle's water depth and pressure sensors; If the water depth pressure sensor is in a failed state, the automatic disconnection function of the vehicle's battery pack is disabled, and the manual disconnection option of the vehicle's battery pack is displayed on the target interface. In response to an occupant's input of a manual disconnection option, the vehicle's battery pack is actively disconnected.

8. A battery pack processing apparatus, characterized in that, The device includes: The acquisition module is used to acquire the vehicle's water depth pressure, vehicle speed, and inertial measurement unit angle when the vehicle is detected to be wading through water. The control module is used to control the vehicle to apply high pressure if the water depth pressure, vehicle speed and inertial measurement unit angle meet the first preset conditions, and to identify the vehicle's battery insulation value, door status and vital signs status inside the vehicle. The unlocking module is used to unlock the vehicle's battery pack if the water depth pressure, battery insulation value, door status, and in-vehicle vital signs status meet a second preset condition. An automatic separation module is used to automatically separate the vehicle's battery pack and control the battery pack to send location information if the water pressure continues to rise after the vehicle's battery pack has been successfully unlocked. The tracking and retrieval module is used to track and retrieve the battery pack of the separated vehicle based on the location information.

9. An electronic device, characterized in that, include: processor; Memory used to store processor-executable instructions; The processor is configured to execute the instructions to implement the battery pack processing method as described in any one of claims 1 to 7.

10. A vehicle, characterized in that, include: The battery pack processing apparatus according to claim 8.

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