A method, apparatus and medium for managing a vehicle battery

Abstract

The application provides a vehicle battery management method, device and medium, and relates to the technical field of vehicle batteries.In the scheme, the battery assembly comprises at least one single battery and a battery management unit connected thereto.The battery management unit is used for managing the electric quantity of each single battery, configuring the electric quantity of each single battery into a free electric quantity interval for free use by a user and a paid electric quantity interval to be unlocked for use by paying a fee, and the paid electric quantity interval of the single battery can be locked or unlocked.The vehicle battery management method effectively reduces the safety problems caused by overcharging and overdischarging in the battery use process through online electric quantity management.

Description

Technical Field

[0001] This application relates to the field of vehicle battery technology, specifically to a method, device, and medium for managing vehicle batteries. Background Technology

[0002] With the continuous advancement of electric vehicle technology, the demand for improving the driving range of electric vehicles is also increasing year by year.

[0003] Currently, increasing battery capacity and improving battery energy density are two common methods to improve the driving range of electric vehicles. Specifically, increasing battery capacity refers to increasing the number of batteries to increase the overall energy storage of the vehicle, that is, installing more battery cells or battery packs inside the vehicle to increase the total battery capacity. Improving battery energy density, on the other hand, increases the driving range by increasing the energy storage capacity of the battery per unit volume or unit weight.

[0004] However, while existing methods for increasing the driving range of electric vehicles have achieved some degree of increase, overcharging and discharging can lead to accelerated battery wear, shortened lifespan, and even an increased risk of spontaneous combustion. Summary of the Invention

[0005] In view of the problems existing in the prior art, this application provides a vehicle battery management method, device and medium. By using a new type of battery with power zone management, it changes the charging and discharging habits of ordinary consumers, reduces the probability of overcharging and over-discharging, reduces the difficulty of vehicle battery consistency management in the prior art, significantly reduces the possibility of thermal runaway, and ensures the safety of vehicles and consumers.

[0006] In a first aspect, this application provides a battery assembly, comprising:

[0007] At least one individual battery cell, and a battery management unit connected to each of the at least one individual battery cell;

[0008] The battery management unit is used to manage the power of each individual battery cell, configuring the power of each individual battery cell into a free power range for users to use freely and a paid power range that requires payment to unlock.

[0009] The battery management unit is also used to lock or unlock the paid power range of a single battery cell.

[0010] In one possible design of the first aspect, the battery assembly includes:

[0011] The effective voltage range corresponding to the chargeable power range of each individual battery is from the first preset voltage to the second preset voltage.

[0012] The effective voltage range corresponding to the free power range of each individual battery cell is from the second preset voltage to the third preset voltage;

[0013] Wherein, the first preset voltage is less than the second preset voltage, the second preset voltage is less than the third preset voltage, the first preset voltage is greater than 0, and the third preset voltage is less than the maximum rated voltage of a single battery cell.

[0014] In one possible design of the first aspect, the battery assembly includes:

[0015] The first preset voltage ranges from 1.5V to 2.75V;

[0016] The second preset voltage ranges from 3.1V to 3.9V;

[0017] The value range of the third preset voltage is 3.9V to 4.0V.

[0018] In one possible design of the first aspect, the first preset voltage is 2.15V, the second preset voltage is 3.2V, and the third preset voltage is 3.96V.

[0019] In one possible design of the first aspect, the battery management unit is further configured to detect the voltage value of each individual battery while the at least one individual battery is being charged; if the voltage value of the individual battery reaches a fourth preset voltage, then push an overcharge alarm message to the output device and / or control the cessation of charging of the at least one individual battery.

[0020] Wherein, the fourth preset voltage is greater than the third preset voltage, and the fourth preset voltage is less than the maximum rated voltage.

[0021] In one possible design of the first aspect, the fourth preset voltage ranges from 4V to 4.5V.

[0022] In one possible design of the first aspect, each individual cell is any of the following types of batteries: lithium battery, lithium iron phosphate battery, or solid-state battery.

[0023] Secondly, this application provides a vehicle, comprising:

[0024] The control unit and the battery assembly as described in any one of the first aspects;

[0025] The control unit is connected to the battery management unit in the battery assembly, and the control unit is also connected to the cloud platform via wireless communication.

[0026] In one possible design of the second aspect, the vehicle further includes:

[0027] An output device is used to display paid electricity usage confirmation information, which includes payment information for the user to pay for the paid electricity usage range, and the payment information includes a payment page or a payment QR code.

[0028] In one possible design of the second aspect, the output device is an in-vehicle terminal or the user's mobile terminal, which displays the payment information through an online battery monitoring program.

[0029] Thirdly, this application provides a method for managing a vehicle battery, the method comprising:

[0030] Real-time monitoring of the remaining charge of each individual battery cell in the vehicle;

[0031] If the remaining power of a single battery cell reaches a preset paid power range, the use of that single battery cell will be locked, and a paid power usage confirmation message will be pushed to the user. The paid power usage confirmation message includes payment information for paying the usage fee for the paid power range.

[0032] In one possible design of the third aspect, the method further includes:

[0033] The user receives payment confirmation information sent by the cloud platform, which indicates whether the user has paid for the paid power range of the single battery cell.

[0034] If the payment confirmation information indicates that the user has paid for the paid power range of a single battery cell, then the use of the single battery cell will be unlocked to allow the single battery cell to continue discharging.

[0035] In one possible design of the third aspect, the method further includes:

[0036] If the payment confirmation information indicates that the user has not paid for the paid power range of the single battery, then the single battery will remain locked.

[0037] or,

[0038] If an instruction is received from the user's mobile terminal or vehicle terminal indicating that the paid power of the single battery cell should not be used, the single battery cell will remain locked.

[0039] Fourthly, this application provides a method for managing a vehicle battery, the method comprising:

[0040] Obtain consistency information of individual cells in the vehicle's battery pack, consistency information of the free power range, and consistency information of the paid power range;

[0041] Based on the consistency information of the individual battery cells, the consistency information of the free power range, and the consistency information of the paid power range, the faulty batteries in the battery assembly are managed for safety.

[0042] In one possible design of the fourth aspect, the safety management of faulty batteries in the battery assembly based on the consistency information of the individual battery cells, the consistency information of the free power range, and the consistency information of the paid power range includes:

[0043] Based on the consistency information of the individual battery cells, the consistency information of the free power range, and the consistency information of the paid power range, it is determined whether there are faulty batteries in the battery assembly.

[0044] If there is at least one faulty battery in the battery assembly, the at least one faulty battery shall be safely managed during the charging or discharging process of the battery assembly.

[0045] In one possible design of the fourth aspect, the individual cell consistency information includes temperature anomaly information, voltage information, current information, and resistance information for each individual cell;

[0046] The consistency information of the free power range includes the voltage, current and resistance information of the free power range for each individual battery cell.

[0047] The consistency information of the paid power range includes the voltage, current and resistance information of each individual battery cell within the paid power range.

[0048] Fifthly, this application provides a vehicle battery management device, the device comprising:

[0049] The detection module is used to detect the remaining power of each individual battery cell in the vehicle in real time.

[0050] The processing module is used to lock the use of a single battery if the remaining power of a single battery reaches a preset paid power range, and push paid power usage confirmation information, which includes payment information for the user to pay for the paid power range usage.

[0051] Sixthly, this application provides a vehicle battery management device, the device comprising:

[0052] The acquisition module is used to acquire consistency information of individual cells in the vehicle's battery pack, consistency information of the free power range, and consistency information of the paid power range.

[0053] The processing module is used to perform safety management on faulty batteries in the battery assembly based on the consistency information of the individual battery cells, the consistency information of the free power range, and the consistency information of the paid power range.

[0054] In a seventh aspect, this application provides a computer-readable storage medium storing computer-executable instructions, which, when executed by a processor, are used to implement the vehicle battery management method as described in any one of the third or fourth aspects.

[0055] Eighthly, this application provides a computer program product comprising a computer program that, when executed by a processor, is used to implement the vehicle battery management method as described in any one of the third or fourth aspects.

[0056] This application provides a battery module, a vehicle, and a method for managing vehicle batteries, applicable to the field of vehicle battery technology. In this solution, the vehicle includes a battery module, a battery management unit, and a control unit. During vehicle operation, the battery management unit monitors the remaining charge of each individual battery cell in real time and locks the usage rights of the individual battery cell when its remaining charge reaches a preset paid charge range. Upon receiving payment confirmation, it determines whether to unlock the individual battery cell, thereby reducing the number of times consumers intentionally or unintentionally use it, cultivating good usage habits, reducing safety issues caused by overcharging and over-discharging, and improving safety. Simultaneously, the vehicle's control unit obtains real-time consistency information of the individual batteries in the vehicle's battery module, consistency information of the free charge range, and consistency information of the paid charge range to ensure safe management of faulty batteries and achieve comprehensive real-time safety protection. Attached Figure Description

[0057] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0058] Figure 1 A schematic diagram of a battery assembly provided in this application;

[0059] Figure 2 A schematic diagram of the battery capacity and voltage range provided in this application;

[0060] Figure 3 This application provides another schematic diagram of battery capacity and voltage range.

[0061] Figure 4 A schematic diagram of a vehicle provided in this application;

[0062] Figure 5 Another vehicle illustration provided for this application;

[0063] Figure 6 A schematic diagram illustrating an application scenario for the vehicle battery management method provided in this application;

[0064] Figure 7 A flowchart illustrating an embodiment of the vehicle battery management method provided in this application;

[0065] Figure 8 A flowchart illustrating Embodiment 2 of the vehicle battery management method provided in this application;

[0066] Figure 9 A flowchart illustrating Embodiment 3 of the vehicle battery management method provided in this application;

[0067] Figure 10 A flowchart illustrating Embodiment 4 of the vehicle battery management method provided in this application;

[0068] Figure 11 A flowchart illustrating Embodiment 5 of the vehicle battery management method provided in this application;

[0069] Figure 12 This is a schematic diagram of the structure of a first embodiment of the vehicle battery management device provided in this application;

[0070] Figure 13 This is a schematic diagram of the structure of Embodiment 2 of the vehicle battery management device provided in this application;

[0071] Figure 14 This is a schematic diagram of the structure of Embodiment 3 of the vehicle battery management device provided in this application. Detailed Implementation

[0072] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, unless otherwise specified, the following embodiments and features can be combined with each other. It should also be understood that the terminology used in the embodiments of the present invention is for describing specific implementation schemes and not for limiting the scope of protection of the present invention. Test methods in the following embodiments that do not specify specific conditions are generally performed under conventional conditions or according to the conditions recommended by the respective manufacturers.

[0073] When numerical ranges are given in the embodiments, it should be understood that, unless otherwise stated in the present invention, both endpoints of each numerical range and any value between the two endpoints may be selected. Unless otherwise defined, all technical and scientific terms used in this invention, as well as the prior art known to those skilled in the art and the description of this invention, may be implemented using any prior art methods, devices, and materials similar to or equivalent to those described, used, or made of materials in the embodiments of this invention.

[0074] With the rapid development of electric vehicle technology, automakers and consumers are demanding increasingly higher driving ranges for electric vehicles.

[0075] Currently, methods to improve the driving range of electric vehicles mainly involve increasing battery capacity and improving battery energy density. Increasing battery capacity primarily involves expanding battery size and energy storage to provide more electrical energy, thereby extending the electric vehicle's driving range. Improving battery energy density mainly involves enhancing the battery's energy storage efficiency and electrical output density, storing more energy within the same volume and weight, thus achieving a longer driving range with limited battery capacity.

[0076] However, while increasing battery capacity and energy density extends the driving range of electric vehicles to some extent, it also presents certain safety concerns. First, high-capacity and high-density batteries may lead to faster degradation and even spontaneous combustion. Second, during vehicle use, excessive charging and discharging of lithium batteries can severely disrupt battery consistency, accelerate wear and tear, and shorten battery life. Furthermore, overcharging and discharging can result in excessive energy storage within the battery, increasing the likelihood of spontaneous combustion. Each charge and discharge cycle causes irreversible damage to the battery, and this damage has a cumulative effect; the more times it occurs, the more significant the impact on battery performance. Third, many consumers apply their gasoline car driving habits to electric vehicles, worrying about battery range. These consumers lack understanding of battery maintenance characteristics and may intentionally or unintentionally overcharge or over-discharge the battery, severely impacting its lifespan and increasing the risk of thermal runaway. In reality, most electric vehicles are primarily used for short-distance driving, so there is no need to excessively worry about range or frequently overcharge and over-discharge. Finally, while increasing vehicle battery capacity can extend driving range, the current common practice is to modify the vehicle's battery management system through over-the-air (OTA) technology to reduce overcharging and over-discharging cycles, slow battery degradation, and prevent thermal runaway or spontaneous combustion. This involves locking a portion of the battery's charge and reducing the driving range to increase the safe operating range. This approach represents a trade-off between battery safety and driving range, but it can also easily lead consumers to believe that electric vehicles are falsely advertised regarding their driving range.

[0077] To address the aforementioned technical problems, the inventors, during their research on vehicle battery management methods, discovered that while increasing battery capacity and energy density can improve driving range to some extent, it also leads to resource waste and safety issues caused by overcharging and discharging. Therefore, the inventors considered managing the power of each individual battery cell, configuring its power into a free range for user use and a paid range that requires unlocking, thereby avoiding safety issues caused by overcharging and discharging. Specifically, battery power is managed in two parts: a free range for safe use and a paid range. Through online power monitoring and real-time cloud monitoring, safety issues caused by overcharging and over-discharging are reduced. For short trips, users reduce the use of the paid range, using only the free range to avoid overcharging and over-discharging, meeting daily needs. For long trips, the paid range is unlocked and used to increase driving range, achieving comprehensive online battery monitoring and improving vehicle safety.

[0078] Figure 1 This is a schematic diagram of a battery assembly provided in this application. Figure 1 As shown, the battery assembly 100 includes at least one individual battery cell 101 and a battery management unit 102 connected to the at least one individual battery cell 101.

[0079] The battery management unit 102 is used to manage the power of each individual battery 101 and configure the power of each individual battery 101 into a free power range 1011 for users to use freely and a paid power range 1012 that requires payment to unlock.

[0080] The battery management unit 102 is also used to lock or unlock the paid power range 1012 of a single battery cell 101.

[0081] Specifically, the battery assembly 100 is mainly located inside the electric vehicle, serving as its core energy device to provide stable power to the vehicle. The battery assembly 100 includes at least one individual battery cell 101 and a battery management unit 102 connected to the at least one individual battery cell 101.

[0082] In one possible implementation, each individual battery cell 101 is any one of the following: a lithium-ion battery, a lithium iron phosphate battery, or a solid-state battery. Lithium-ion batteries offer high energy density and lightweight characteristics, making them suitable for electric vehicle applications with high energy density and weight requirements. Lithium iron phosphate batteries provide higher safety and stability, making them suitable for applications requiring higher safety. Solid-state batteries, as an emerging technology, achieve a good balance between high energy density and safety, providing more reliable and longer-lasting power support for electric vehicles. By selecting the appropriate type of individual battery cell 101, the battery assembly 100 can meet the needs of different vehicles and users, while providing more flexible and diversified energy solutions.

[0083] The battery management unit 102 manages the power of each individual battery cell 101, configuring the power of each individual battery cell 101 into a free power range 1011 for user use and a paid power range 1012 that requires payment to unlock. Different voltage ranges of individual batteries 101 correspond to different free power ranges 1011 and paid power ranges 1012 for individual batteries.

[0084] The voltage of a single conventional lithium battery cell ranges from 2.5 to 4.25V. For lithium battery packs, the capacity ranges as follows: 3.7V lithium battery: 200-3300mAh; 4.5V lithium battery: 550-1500mAh; 4.35V lithium battery: 1700-3300mAh; 7.4V lithium battery: 1000-2600mAh; 7.2V lithium battery: 2200-5000mAh; 11.1V lithium battery: 2400-4400mAh; 14.8V lithium battery: 3000-6000mAh; 18.5V lithium battery: 4000-8000mAh; and 22.2V lithium battery: 5000-10000mAh.

[0085] Within the free power range 1011, users can freely use the energy stored in the battery to meet their daily short-distance travel needs. In the paid power range 1012, users can unlock additional power by paying a fee to handle long-distance travel or situations requiring urgent charging. The battery management unit 102 intelligently allocates power resources based on user needs and the vehicle's actual conditions, ensuring a convenient and efficient charging experience for users in various driving scenarios.

[0086] Meanwhile, the battery management unit 102 is also used to lock or unlock the paid power range 1012 of the individual battery cell 101. Specifically, after the vehicle's remaining power reaches a preset condition, the battery management unit 102 locks the paid power range 1012 of the individual battery cell 101. It can be unlocked after the user pays the additional fee. At this time, the user can choose to pay an additional fee to unlock the paid power range 1012 and obtain extra power support according to actual needs. After the user pays the corresponding fee, the battery management unit 102 will immediately unlock the paid power range 1012, allowing the user to immediately obtain extra power and continue driving or charging. This flexible locking and unlocking mechanism effectively meets the user's flexible power needs, while also providing the user with more choices and control, thereby improving user experience and satisfaction.

[0087] The battery module provided in this embodiment, by setting free and paid power ranges, not only ensures the user's basic travel needs but also provides flexible charging options. Users can flexibly choose whether to pay extra for additional power support based on their own needs, thereby meeting charging requirements for long-distance travel or emergencies, enhancing the practicality and convenience of electric vehicles. Simultaneously, the battery management unit rigorously monitors power usage to ensure the safety and reliability of the charging and discharging process, providing users with a more reassuring user experience.

[0088] Figure 2 This is a schematic diagram illustrating the battery capacity and voltage range provided in this application. Figure 2 As shown, the effective voltage range corresponding to the paid power range of each individual battery 101 is from the first preset voltage to the second preset voltage.

[0089] The effective voltage range corresponding to the free power range of each individual battery 101 is from the second preset voltage to the third preset voltage;

[0090] Among them, the first preset voltage is less than the second preset voltage, the second preset voltage is less than the third preset voltage, and the first preset voltage is greater than 0, while the third preset voltage is less than the maximum rated voltage of the single cell 101.

[0091] Specifically, to ensure that each individual battery cell 101 maintains a voltage within a safe range during charging and discharging, different voltage ranges need to be set to effectively manage the usage of each individual battery cell 101. Specifically, the effective voltage range corresponding to the paid power range of each individual battery cell 101 is from a first preset voltage to a second preset voltage, and the effective voltage range corresponding to the free power range of each individual battery cell 101 is from a second preset voltage to a third preset voltage. The first preset voltage is less than the second preset voltage, the second preset voltage is less than the third preset voltage, and the first preset voltage is greater than 0, while the third preset voltage is less than the maximum rated voltage of the individual battery cell 101. The maximum rated voltage is the highest voltage value that the individual battery cell 101 can safely withstand, as specified during its design and manufacturing process; it is determined based on the chemical characteristics, structural design, and safety considerations of the individual battery cell.

[0092] For example, suppose an electric vehicle's battery pack contains multiple individual cells. Under normal circumstances, each individual cell maintains a consistent charge and discharge rate. For instance, the effective voltage range for the paid charging range might be 1.5V to 3.1V, while the effective voltage range for the free charging range is 3.1V to 4.9V. During the discharge of a single cell, if the voltage of that cell drops to 3.1V, the battery management unit determines that the battery usage has reached the paid charging range and locks the battery. Once the user has paid, the paid charging range is unlocked, allowing the user to continue using the remaining battery power. This setup effectively limits battery usage, preventing damage from overcharging or over-discharging, while also providing users with flexible charging options.

[0093] In this embodiment, by setting the effective voltage range of the paid power range and the free power range, the usage of individual batteries can be effectively managed to prevent overload or undervoltage during charging or discharging, thereby extending the battery's lifespan and ensuring the safety of the charging process.

[0094] In one possible implementation, the first preset voltage ranges from 1.5V to 2.75V; the second preset voltage ranges from 3.1V to 3.9V; and the third preset voltage ranges from 3.9V to 4.0V.

[0095] Specifically, the effective voltage range corresponding to the paid power range of each individual battery is from the first preset voltage to the second preset voltage, and the effective voltage range corresponding to the free power range of each individual battery is from the second preset voltage to the third preset voltage.

[0096] For example, vehicle A's built-in battery pack includes multiple fault-free individual cells. The first preset voltage value is 1.5V, the second preset voltage value is 3.1V, and the third preset voltage value is 3.9V. This means the effective voltage range for the paid charging range of an individual cell is 1.5V to 3.1V, and the effective voltage range for the free charging range is 3.1V to 3.9V. During normal discharge of an individual cell, the battery management unit monitors the voltage values ​​of multiple individual cells in real time. If the detected voltage value of an individual cell is 3.9V, it falls within the free charging range that the user can freely use. The battery management unit does not need to manage the battery; it only needs to continue monitoring the voltage values ​​of multiple individual cells. If the detected voltage value of an individual cell drops to 3.1V, it is determined that it has entered the paid charging range, requiring the user to pay. Therefore, the battery management unit locks the paid charging range and outputs payment information through the output device. The user can then unlock the charging range after paying.

[0097] For example, vehicle B's built-in battery pack includes multiple fault-free individual cells. The first preset voltage value is 2.75V, the second preset voltage value is 3.9V, and the third preset voltage value is 4.0V. Therefore, the effective voltage range corresponding to the paid power range for each individual cell is 2.75V to 3.9V, and the effective voltage range corresponding to the free power range is 3.9V to 4.0V. During normal discharge of the individual cells, the battery management unit monitors the voltage values ​​of multiple individual cells in real time. If the detected voltage value of an individual cell is 3.95V, it falls within the free power range that the user can freely use. The battery management unit does not need to manage the battery; it only needs to continue monitoring the voltage values ​​of multiple individual cells. If the detected voltage value of an individual cell drops to 3.9V, it is determined that it has entered the paid power range that the user needs to pay for. The battery management unit locks the paid power range and outputs payment information through the output device. The user can then pay to unlock the range and continue using the battery.

[0098] Optionally, the battery pack built into vehicle C includes multiple fault-free individual batteries with a first preset voltage value of 1.75V, a second preset voltage value of 3.2V, and a third preset voltage value of 3.95V. That is, the effective voltage range corresponding to the paid power range of the individual battery is 1.75V to 3.2V, and the effective voltage range corresponding to the free power range is 3.2V to 3.95V.

[0099] Optionally, the battery pack built into vehicle D includes multiple fault-free individual batteries with a first preset voltage value of 2.6V, a second preset voltage value of 3.3V, and a third preset voltage value of 3.93V. Therefore, the effective voltage range corresponding to the paid power range of the individual battery is 2.6V to 3.3V, and the effective voltage range corresponding to the free power range is 3.3V to 3.93V.

[0100] This embodiment mainly details the value ranges of the first preset voltage, the second preset voltage, and the third preset voltage. By setting specific voltage value ranges, it can be ensured that the voltage of a single battery cell remains within a safe and effective range during paid charging or discharging. This avoids the adverse effects of excessively high or low voltage on battery performance and lifespan, thereby improving battery reliability and safety.

[0101] In one possible implementation, the first preset voltage is 2.15V, the second preset voltage is 3.2V, and the third preset voltage is 3.96V.

[0102] Specifically, due to differences in the manufacturing structure and type of individual battery cells, the actual voltage values ​​vary. In the individual battery cells provided in this embodiment, the first preset voltage is 2.15V, the second preset voltage is 3.2V, and the third preset voltage is 3.96V, with an allowable voltage error of ±0.05V. Therefore, the effective voltage range corresponding to the paid power range of each individual battery cell is 2.15V to 3.2V, and the effective voltage range corresponding to the free power range of each individual battery cell is 3.2V to 3.96V.

[0103] For example, a battery module may consist of multiple individual cells. The effective voltage range for the paid power range is 2.15V to 3.2V, while the effective voltage range for the free power range is 3.2V to 3.96V. During the discharge process of these individual cells, the battery management unit continuously monitors the voltage values ​​of each individual cell.

[0104] If multiple individual battery cells are detected to have a voltage of 3.96V or 3.8V, it indicates that the corresponding free power range is available and the user can continue to use the battery. The battery management unit will then continue to monitor the voltage of the multiple individual battery cells.

[0105] If multiple individual battery cells are detected to have a voltage value of 3.2V, it indicates that the corresponding paid power range is being locked by the battery management unit. The user can then unlock the paid power range after paying to have it released.

[0106] This embodiment primarily describes the specific values ​​of the first preset voltage, the second preset voltage, and the third preset voltage. These specific values ​​provide clear guidance for the battery management unit, enabling it to effectively monitor and control the charging and discharging process of individual cells, ensuring that each cell always operates within a safe range. This precise voltage setting helps to maximize battery protection, optimize system performance, extend battery life, and improve the overall system reliability and efficiency.

[0107] Figure 3 Another schematic diagram of battery capacity and voltage range provided in this application, such as Figure 3 As shown, based on any of the above embodiments, in one possible implementation, the battery management unit is further configured to detect the voltage value of each individual battery cell when at least one individual battery cell is being charged; if the voltage value of the individual battery cell reaches a fourth preset voltage, then push a battery overcharge alarm message to the output device and / or control the cessation of charging at least one individual battery cell; wherein, the fourth preset voltage is greater than the third preset voltage and less than the maximum rated voltage.

[0108] Specifically, in addition to managing the power of each individual battery cell, the battery management unit also detects the voltage of each individual battery cell when at least one individual battery cell is charging. If the voltage of an individual battery cell is within the free power range, it continues to be used by the user. If the voltage of an individual battery cell is within the paid power range, that range is locked. If the voltage of an individual battery cell reaches a fourth preset voltage, the battery management unit pushes an overcharge warning message to the output device and / or controls the cessation of charging at least one individual battery cell.

[0109] The fourth preset voltage is predefined and its value is greater than the third preset voltage but less than the maximum rated voltage. When charging a single battery cell, the battery management unit needs to detect the voltage value of the cell being charged and compare it with the fourth preset voltage in real time. When the detected voltage value reaches the preset fourth preset voltage, it indicates that the single battery cell is about to be fully charged, and there is a possibility of overcharging.

[0110] In this situation, the battery management unit will send an overcharge alarm message to the output device, notifying the user or the control system that multiple individual batteries are about to be fully charged and that appropriate measures need to be taken to avoid overcharging.

[0111] In this scheme, it should be understood that the fourth preset voltage of each individual cell may be different due to the different performance of each individual cell.

[0112] Simultaneously, the battery management unit can also execute control commands to stop charging at least one individual battery cell. This means that when the battery management unit detects an overcharge, it prevents further charging of that individual battery cell through control output devices. Such control measures aim to prevent battery overcharging in a timely manner, thereby protecting the battery and ensuring the safe operation of the entire system.

[0113] For example, an electric vehicle's battery pack may consist of multiple individual cells. If one of these cells becomes overcharged due to a malfunction or other reasons, the battery management unit (BMU) will immediately send an overcharge warning to the vehicle's control system. Simultaneously, through a control output device, the BMU will command the charging system to stop charging that individual cell to prevent further overcharging.

[0114] The battery assembly comprises multiple individual cells. The paid power range corresponds to the first preset voltage to the second preset voltage, and the free power range corresponds to the second preset voltage to the third preset voltage.

[0115] For example, during the charging process, when the voltage of each individual battery reaches the fourth preset voltage of one of the individual batteries, the battery management unit will push an overcharge alarm message to the output device and / or control the cessation of charging of the individual battery that has reached the overcharge voltage threshold.

[0116] In practical applications, the actual usable storage capacity of a single battery cell decreases, indicating a potential malfunction. Possible causes include over-discharge, battery aging, abnormal temperature, and circuit problems. To address this, the battery management unit needs to implement specific online management measures based on the individual battery cell's condition. For example, during discharge, the output capacity of the single battery cell can be limited. During the next charge cycle, charging of the single battery cell can be disabled.

[0117] Optionally, during the charging process of a single battery, when the battery management unit detects that the voltage of a single battery has reached a fourth preset voltage, it will lock the single battery to prevent overcharging, stop accepting charging, and notify the user through the output device that the single battery has reached the fourth preset voltage and charging will no longer be performed. If the user still wants to charge the single battery, they need to unlock the single battery using a paid or non-paid method to enable charging.

[0118] This embodiment primarily describes the function of the battery management unit, which, while at least one individual battery is charging, detects the voltage value of each individual battery. If the voltage value reaches a fourth preset voltage, it prevents overcharging by pushing an alarm message to the output device and / or controlling the cessation of charging at least one individual battery. This function enables timely detection and handling of battery overcharging, preventing damage and safety hazards to the battery and the entire vehicle. Simultaneously, this function improves the lifespan of the battery assembly, reduces battery wear and replacement costs, and allows the entire vehicle to operate more efficiently.

[0119] Based on any of the above embodiments, in one possible implementation, the overcharge voltage threshold of each individual battery cell, that is, the fourth preset voltage, is in the range of 4V to 4.5V.

[0120] Specifically, the fourth preset voltage is greater than the third preset voltage but less than the maximum rated voltage. The third preset voltage is 3.96V, and the fourth preset voltage ranges from 4V to 4.5V.

[0121] For example, during the charging process of a single battery, the battery management unit detects the voltage value of the corresponding single battery. If the measured voltage value is 4V, it means that the voltage of the single battery has reached the fourth preset voltage. At this time, the battery management unit pushes a battery overcharge alarm message to the output device and / or controls the cessation of charging at least one single battery.

[0122] Optionally, in practice, the fourth preset voltage is generally set to 4.18V. This value was determined after comprehensive consideration and practical verification. This value will not cause the individual battery cells to stop charging prematurely, and it can also effectively avoid overcharging of the battery, thereby protecting the battery's safety and extending its service life.

[0123] This embodiment mainly describes the range of the fourth preset voltage. By setting an appropriate fourth preset voltage range, overcharging of individual batteries during charging can be avoided, thereby reducing safety issues such as overheating and leakage. Simultaneously, by controlling the battery to stop charging within the fourth preset voltage range, prolonged exposure to high voltage can be prevented, reducing battery aging and wear, and thus extending battery life.

[0124] Figure 4 This is a schematic diagram of a vehicle provided for this application. Figure 4 As shown, the vehicle 400 includes a control unit 401 and a battery pack 402.

[0125] The control unit 401 is connected to the battery management unit 4021 in the battery assembly 402, and the control unit 401 is also connected to the cloud platform 403 via wireless communication.

[0126] Specifically, vehicle 400 includes a control unit 401 and a battery pack 402. The control unit 401 is connected to the battery management unit 4021 in the battery pack 402, and monitors parameters such as voltage, current, and temperature of the battery pack 402 in real time to ensure its safe operation. When the battery management unit 4021 detects an abnormality, the control unit 401 will take corresponding measures, such as sending an alarm or stopping charging and discharging operations, to avoid potential safety issues.

[0127] Simultaneously, the control unit 401 establishes a wireless communication connection with the cloud platform 403, enabling interaction with the cloud through data transmission and command reception. Through this connection, the control unit 401 can obtain the latest data and commands from the cloud, such as updates to charge / discharge management strategies, remote diagnostics, and control. It also uploads the operating data of the battery pack 402 to the cloud platform, providing support for vehicle maintenance, optimization, and remote monitoring.

[0128] This embodiment primarily describes the basic components and functions of the vehicle. The vehicle includes a control unit and a battery module. The control unit is connected to the battery management unit within the battery module, ensuring safety by monitoring and controlling the battery module's operating status. Simultaneously, the control unit can establish a wireless connection with a cloud platform, enabling data transmission and command interaction, thus improving vehicle management efficiency and remote monitoring capabilities. This design facilitates the safe operation of the battery module, optimizes its performance, and enables convenient remote management, bringing positive effects to vehicle operation and maintenance.

[0129] exist Figure 4 On this basis, Figure 5 Another vehicle illustration provided for this application. (See attached diagram.) Figure 5 As shown, the vehicle 400 also includes:

[0130] The output device 404 is used to display paid electricity usage confirmation information, which includes payment information for paying the usage fee for the paid electricity range, including a payment page or a payment QR code.

[0131] Specifically, in the battery pack 402 of the vehicle 400, the battery management unit 4021 is responsible for monitoring and managing the status and usage of individual battery cells. When the battery management unit 4021 detects that the free power range of an individual battery cell is about to be exhausted, it will lock the paid power range to ensure the user's power supply.

[0132] At this time, the output device 404 connected to the control unit 401 is triggered, displaying paid power usage confirmation information to the user. This confirmation information includes the current power consumption and the corresponding paid power usage range fee, allowing the user to clearly understand their power consumption. Simultaneously, the output device 404 also provides payment information and methods, such as a payment page or payment QR code, for the user to conveniently and quickly complete the payment operation. The payment QR code, used by the user to scan and pay the fee corresponding to the paid power usage range, is a viable payment method. A payment QR code is generated directly on the vehicle terminal, and payment is completed through the payment QR code and a third-party payment platform or bank.

[0133] Users can decide whether to pay the corresponding fee based on their needs and actual circumstances. After the user successfully scans the payment code, the cloud platform 403 obtains the payment success information and sends the unlocking information or unlocking key to the vehicle's control unit 401. Upon receiving the unlocking information or unlocking key, the vehicle control unit 401 sends it to the battery management unit 4021. The battery management unit 4021 then unlocks the corresponding paid battery range so that individual batteries can continue to provide power to the vehicle. If the user does not pay, the battery management unit 4021 will take appropriate measures, such as cutting off the power supply, to ensure the safe and stable operation of the vehicle.

[0134] This embodiment mainly illustrates the important role of the output device in vehicle battery management. It can provide users with payment information for the paid battery usage period by displaying paid battery usage confirmation information. In this way, users can clearly understand their battery consumption and complete the payment operation conveniently and quickly, thereby enhancing user experience and satisfaction.

[0135] Based on the above embodiments, in one possible implementation, the output device is an in-vehicle terminal or a user's mobile terminal, and the in-vehicle terminal or mobile terminal displays payment information through an online battery monitoring program.

[0136] Specifically, the output device can be an in-vehicle terminal or a user's mobile terminal. Through these terminal devices, users can monitor battery usage online anytime, anywhere and view payment information. When the battery management unit detects that the battery is about to run out of power or that payment is required, the relevant information will be transmitted to the in-vehicle terminal or the user's mobile terminal via the output device.

[0137] In vehicle-mounted terminals, which are control devices installed in vehicles to manage vehicle-related systems and functions, can connect to the battery management unit (BMU) in battery management. This allows for online monitoring of the battery and the display of payment information. Users can view battery consumption and payment information on the screen of the vehicle-mounted terminal to make timely decisions and take appropriate actions.

[0138] The user's mobile terminal refers to their own mobile device, such as a smartphone. Users can monitor battery usage and payment information online through applications or websites on their mobile terminals. Users can check battery consumption and payment information anytime, anywhere via their mobile terminals to make appropriate decisions and take appropriate actions.

[0139] For example, the output device could be a user's mobile terminal, which has an application for paid online battery management. This application connects wirelessly to a cloud platform via the mobile terminal to send payment unlocking information. Alternatively, payment can be collected directly through the paid online battery management application on the mobile terminal. After successful payment, the cloud platform sends the unlocking information or unlocking key to the vehicle's control unit or to the user's mobile terminal, whereby the user then inputs the unlocking information or unlocking key into the vehicle's control unit.

[0140] This embodiment summarizes two types of output devices in the battery management unit: in-vehicle terminals and user mobile terminals. Both devices can display payment information through online battery monitoring programs, helping users understand battery usage anytime, anywhere. Using these output devices, users can conveniently monitor battery level and payment information, make timely decisions and operations, improve the user experience, and make the system more intelligent and convenient.

[0141] Figure 6 This is a schematic diagram illustrating an application scenario for the vehicle battery management method provided in this application. For example... Figure 6 As shown, the application scenario of the solution provided in this application includes a battery module 600 and a control unit 601. The battery module 600 includes a battery management unit 6001.

[0142] Specifically, the battery management unit 6001 included in the vehicle's built-in battery assembly manages the power of each individual battery cell, configuring each cell's power into a free power range for user use and a paid power range that requires payment to unlock. During vehicle operation, the battery management unit 6001 monitors the power of each individual battery cell in real time and locks or unlocks the paid power range as needed to protect the individual batteries and improve safety. The battery management unit 6001 interacts with the control unit 601 in real time to execute control commands from the control unit 601.

[0143] Figure 7 This is a flowchart illustrating an embodiment of the vehicle battery management method provided in this application. Figure 7 As shown, the vehicle battery management method includes:

[0144] S701: Real-time detection of the remaining charge of each individual battery cell in the vehicle.

[0145] In this step, while the vehicle is in motion, the battery management unit located inside the vehicle needs to monitor the remaining charge of each individual battery cell in the vehicle in real time.

[0146] Specifically, the battery management unit (BMU) acquires and records the charge information of each individual battery cell in real time through sensors connected to each cell. This information can be displayed to the user via an in-vehicle display or a mobile app. Users can check the remaining charge status of each individual battery cell at any time to make appropriate decisions and adjustments.

[0147] Optionally, the battery management unit can not only monitor the remaining battery power in real time, but also monitor parameters such as battery temperature and voltage. When it detects an abnormal drop in the power of a single cell or an abnormal rise in temperature, the battery management unit will promptly send a warning message to notify the user so that appropriate measures can be taken to avoid potential safety issues.

[0148] S702: If the remaining power of a single battery cell reaches the preset paid power range, the use of the single battery cell will be locked, and a paid power usage confirmation message will be pushed to the user. The paid power usage confirmation message includes payment information for the paid power range usage fee.

[0149] In this step, based on step S701, when the battery management unit detects the remaining power of each individual battery cell in the vehicle in real time, if the remaining power of any individual battery cell reaches the preset paid power range, the use of the individual battery cell is locked, and a paid power usage confirmation message is pushed.

[0150] Specifically, when the remaining charge of a single battery cell reaches the set paid charge range, the battery management unit will automatically lock the use of that single battery cell to prevent the user from continuing to consume its power. At the same time, the battery management unit will push a paid charge usage confirmation message to the user, including information on the relevant fees for using the charge range, so that the user can confirm and pay the corresponding fees.

[0151] The preset paid battery range refers to a range of battery levels pre-defined in the battery management unit. When the remaining battery level of a single cell falls within this range, the user must pay a fee to continue using the battery. This range is typically determined based on user needs and service provider policies. The upper and lower limits of this range can be determined based on battery capacity, vehicle model, or individual user requirements. For example, the preset paid battery range could be set so that a fee is charged when the remaining battery level is below 30%. When the remaining battery level exceeds this range, the user can use the battery freely without incurring additional charges. However, once the battery level falls within the preset paid range, the user must confirm and pay the corresponding fee to continue using the battery.

[0152] When the remaining charge of a single battery cell reaches a preset payable charge range, the battery management unit (BMU) can lock the use of that single battery cell via software or hardware. Specific locking operations can include software-controlled locking, hardware power-off locking, and remote control locking. Software-controlled locking refers to the BMU's software program monitoring and identifying the remaining charge of a single battery cell. Once it detects that a single battery cell's charge has entered the preset payable range, the software sends a command to the BMU to lock that single battery cell. This prevents the single battery cell from supplying power to the vehicle, thus limiting the user's continued use. Hardware power-off locking refers to locking the single battery cell using hardware devices. For example, a switch or circuit breaker can be set in the BMU; when the charge reaches the preset range, the BMU automatically disconnects the battery from the vehicle, preventing the battery from outputting power and thus achieving a locked state. Remote control locking refers to the ability to lock the battery cell by remotely controlling the BMU via a network when its charge reaches the preset range.

[0153] In this scheme, it should be understood that the remaining power can be determined by the battery's effective voltage, as described above. Figure 1 In the example shown in the embodiment, the battery management unit or control unit obtains the real-time voltage of each individual battery cell, and determines whether to lock or unlock the battery usage based on the voltage value and the effective voltage range corresponding to the preset free power range and the effective voltage range corresponding to the paid power range.

[0154] The vehicle battery management method provided in this embodiment can effectively lock individual battery cells, ensuring that users need to pay a fee to continue using electricity once the paid power range is reached. This locking mechanism encourages users to conserve electricity and use resources rationally, promoting the sustainable development of the electric vehicle market.

[0155] Figure 8 This is a flowchart illustrating Embodiment Two of the vehicle battery management method provided in this application. Figure 8 As shown, the vehicle battery management method also includes:

[0156] S801: Receives payment confirmation information sent by the cloud platform. The payment confirmation information is used to indicate whether the user has paid for the paid power range of the single battery.

[0157] In this step, based on step S702, if the remaining power of a single battery cell reaches a preset paid power range, the use of that single battery cell is locked, and a paid power usage confirmation message is sent. After receiving the paid power usage confirmation message, the user needs to choose whether to pay the fee based on their actual needs.

[0158] After a user completes the payment process, the relevant payment system generates a payment confirmation message and sends it to the cloud platform via the network. This confirmation message indicates whether the user has paid for the paid battery usage range for the individual battery. Upon receiving the confirmation message, the cloud platform parses and verifies it to confirm the user's payment status. Once payment is confirmed, the cloud platform updates the user's battery usage permissions accordingly, unlocking the individual battery and allowing the user to continue using the battery. Throughout this process, the payment confirmation message promptly transmits the user's payment status, helping the cloud platform determine whether to unlock the individual battery.

[0159] S802: If the payment confirmation information indicates that the user has paid for the paid range of electricity used by a single battery, then the use of the single battery is unlocked so that the single battery can continue to discharge.

[0160] In this step, based on step S801, after receiving the payment confirmation information from the cloud platform, when the payment confirmation information indicates that the user has paid for the paid power range of the single battery cell, it indicates that the user has completed the corresponding payment and meets the conditions for continuing to use the single battery cell. Therefore, the battery management unit will perform an unlocking process, allowing the single battery cell to continue discharging.

[0161] The unlocking process includes updating the system status to restore the usage rights of the individual battery, allowing users to continue to freely use the power provided by the individual battery without any restrictions.

[0162] The vehicle battery management method provided in this embodiment receives payment confirmation information from the cloud platform and, after confirming that the user has paid the usage fee for the individual battery, unlocks the individual battery to allow it to continue discharging, ensuring that the user can smoothly use the battery power. This method provides users with reliable service, guaranteeing that users can smoothly continue to use the battery power after completing payment, while also ensuring the safe and stable operation of the vehicle.

[0163] Figure 9 This is a flowchart illustrating Embodiment 3 of the vehicle battery management method provided in this application. Figure 9 As shown, the vehicle battery management method also includes:

[0164] S901: If the payment confirmation information indicates that the user has not paid for the paid power range of the single battery cell, then the single battery cell remains locked; or,

[0165] If an instruction is received from the user's mobile terminal or vehicle terminal indicating that the paid battery charge should not be used, the individual battery will remain locked.

[0166] In this step, based on step S801, the battery management unit makes a judgment after receiving the payment confirmation information sent by the cloud platform. If the payment confirmation information indicates that the user has not paid for the paid power range of the single battery cell, this means that the user has not completed the corresponding payment, and therefore the single battery cell needs to remain locked. This operation ensures that the user cannot continue to use the power before completing the payment, thereby avoiding resource waste and unauthorized use.

[0167] Meanwhile, in some situations, the battery management unit may also receive instructions from users via mobile devices or in-vehicle terminals, indicating that they will not use the paid power of a single battery cell. In this case, it is also necessary to continue locking the single battery cell to meet the user's needs and ensure the rational use of battery resources.

[0168] The vehicle battery management method provided in this embodiment involves the battery management unit taking corresponding measures to continue locking individual battery cells based on payment confirmation information and user instructions. This method ensures that the user cannot continue to use the battery power before payment is completed, effectively guaranteeing the rational use of battery resources and reducing the consumption of individual battery cells. Simultaneously, based on user instructions, the battery management unit can meet the user's needs, contributing to optimized vehicle stability.

[0169] Figure 10 This is a flowchart illustrating Embodiment 4 of the vehicle battery management method provided in this application. Figure 10 As shown, the vehicle battery management method includes:

[0170] S1001: Obtain the consistency information of individual cells in the vehicle's battery pack, the consistency information of the free power range, and the consistency information of the paid power range.

[0171] In this step, the battery management unit or cloud platform monitors the status of individual battery cells in real time while the vehicle is in motion.

[0172] By acquiring the consistency information of individual cells within the vehicle's battery pack, the battery management unit can understand the state and performance of each individual cell, ensuring consistency across the entire battery pack. This helps prevent the performance of the entire battery pack from deteriorating or becoming unstable due to aging or other issues in certain individual cells.

[0173] Meanwhile, obtaining consistent information between the free and paid battery usage ranges helps the battery management unit (BMU) or cloud platform better control and manage battery usage. By ensuring consistency between the free and paid battery usage ranges, the BMU can ensure that users comply with preset rules and conditions when using battery power. This prevents battery abuse or unauthorized use, ensuring the rational utilization of battery resources.

[0174] S1002: Based on the consistency information of individual cells, the consistency information of free power range, and the consistency information of paid power range, perform safety management on faulty cells in the battery pack.

[0175] In this step, based on the consistency information of individual cells, the consistency information of the free power range, and the consistency information of the paid power range obtained in step S1001, the faulty cells in the battery pack are managed safely.

[0176] Specifically, by analyzing the consistency information of individual battery cells, it's possible to identify which cells may have problems, such as capacity degradation or abnormal voltage. Simultaneously, by checking the consistency information between the free and paid power ranges, it's possible to understand whether the user's charging behavior complies with regulations and whether there are any abnormal or improper uses. Based on this information, the battery management unit or cloud platform can promptly identify potentially faulty or abnormal batteries and take corresponding safety management measures, such as stopping the use of faulty batteries and reminding maintenance personnel to replace or repair them, to ensure the safety and stability of the entire battery assembly.

[0177] For example, when an electric vehicle is on a long journey, the battery management unit continuously monitors the charge, temperature, and health of each individual battery cell. If any individual battery cell malfunctions, such as experiencing a decrease in capacity or excessive temperature, the battery management unit will immediately take appropriate measures, such as adjusting the charge / discharge rate or issuing an alarm to prompt the user to stop and have it inspected, to ensure the safety and stability of the entire battery assembly.

[0178] The vehicle battery management method provided in this embodiment acquires consistency information of individual cells, consistency information of free power ranges, and consistency information of paid power ranges within the vehicle battery pack. Based on this information, it then performs safety management on batteries that may be faulty. This method improves the monitoring and management of individual cell status, helps to identify and handle faulty individual cells in a timely manner, and thus enhances vehicle safety and stability.

[0179] Figure 11 This is a flowchart illustrating Embodiment 5 of the vehicle battery management method provided in this application. Figure 11 As shown, based on the above embodiments, and according to the consistency information of individual battery cells, the consistency information of free power range, and the consistency information of paid power range, the faulty batteries in the battery pack are managed for safety. The vehicle battery management method includes:

[0180] S1101: Based on the consistency information of individual cells, the consistency information of the free power range, and the consistency information of the paid power range, determine whether there are faulty cells in the battery pack.

[0181] In this step, based on the individual battery consistency information, the consistency information of the free power range, and the consistency information of the paid power range obtained in step S1001, the status and usage of each battery cell in the vehicle battery pack can be understood, thereby determining whether there are faulty batteries in the battery pack.

[0182] Consistency information for individual battery cells can detect issues such as decreased battery capacity or abnormal voltage, while consistency information between the free and paid power ranges can be used to determine whether a user's charging behavior is standardized and whether there are any abnormal or improper uses. Once an abnormality is detected in a battery, such as voltage below the normal range, decreased capacity, or abnormally high temperature, it can be classified as a faulty battery, and safety management measures such as stopping its use can be implemented.

[0183] For example, an electric vehicle's battery pack may contain 100 battery cells, 10 of which may be faulty, exhibiting issues such as reduced capacity or abnormal voltage. After obtaining consistency information for individual battery cells, consistency information for the free power range, and consistency information for the paid power range, the battery management unit or cloud platform can quickly identify these 10 faulty batteries and address them through safety management measures.

[0184] S1102: If there is at least one faulty battery in the battery pack, then the at least one faulty battery shall be safely managed during the charging or discharging process of the battery pack.

[0185] In this step, based on step S1101, when determining whether there is a faulty battery in the battery pack according to the consistency information of the individual battery, the consistency information of the free power range, and the consistency information of the paid power range, if there is at least one faulty battery in the battery pack, then at least one faulty battery is subject to safety management during the charging or discharging process of the battery pack.

[0186] For example, if a battery cell in an electric vehicle's battery pack is detected to be faulty, perhaps due to abnormal voltage or reduced capacity, the battery management unit or cloud platform will implement special safety management measures for this faulty battery while the vehicle is charging or driving. This ensures the stable operation and safety of the entire battery pack. Safety management measures include stopping charging the battery, limiting its discharge rate, or alerting maintenance personnel to replace the battery promptly, in order to avoid potential safety issues.

[0187] The vehicle battery management method provided in this embodiment determines whether there are faulty batteries in the battery pack based on the consistency information of individual battery cells, the consistency information of free power ranges, and the consistency information of paid power ranges, and performs safety management of faulty batteries during charging or discharging. By adopting this method, faulty batteries can be identified and managed, thereby reducing safety problems caused by faulty batteries and extending the service life of the battery pack.

[0188] Based on any of the above embodiments, in one possible implementation, the single cell consistency information includes temperature anomaly information, voltage information, current information, and resistance information for each single cell.

[0189] The consistency information for the free power range includes the voltage, current, and resistance information for each individual cell within the free power range.

[0190] The consistency information for the chargeable charge range includes the voltage, current, and resistance information for each individual battery cell within the chargeable charge range.

[0191] Specifically, the individual battery consistency information includes temperature anomaly information, voltage information, current information, and resistance information for each individual battery. Temperature anomaly information helps the battery management unit or cloud platform detect overheating in any individual battery, allowing for timely cooling or stopping charging / discharging operations to prevent safety accidents. Voltage and current information provide accurate data on the individual battery's capacity, helping the battery management unit or cloud platform determine the battery's status and performance. Resistance information is used to determine the internal resistance of the individual battery to identify any faults or aging phenomena, enabling appropriate safety management and maintenance.

[0192] Consistency information within the free charge range includes voltage, current, and resistance information for each individual battery cell. By monitoring and recording the voltage and current information of each individual battery cell within the free charge range, the battery management unit or cloud platform can accurately determine the remaining charge of each individual battery cell and comprehensively consider the status of the entire battery pack. The resistance information within the free charge range is used to determine the internal state and performance of each individual battery cell; the resistance reflects the conductivity and charge transport within the cell. By monitoring and comparing the resistance information of each individual battery cell, the battery management unit or cloud platform can identify abnormal or aging individual batteries and take corresponding safety management measures.

[0193] Consistency information for the paid power range includes voltage, current, and resistance information for each individual battery cell. Voltage information refers to the voltage value of each individual battery cell within the paid power range. The voltage level of each individual battery cell directly affects the total voltage of the system; therefore, understanding the voltage information of each individual battery cell is crucial. By monitoring and recording the voltage of each individual battery cell, it is ensured that they remain consistent within the paid power range, preventing abnormally high or low voltages in some individual batteries that could lead to system performance degradation or safety issues. Current information refers to the current value of each individual battery cell within the paid power range. Current is an important indicator of the energy conversion rate of an energy storage system. Understanding the current information of each individual battery cell helps determine whether it is operating normally within the paid power range and can also detect potential current imbalances. Resistance information refers to the resistance value of each individual battery cell within the paid power range. Resistance is the obstacle encountered when current flows through a battery, leading to energy loss and heat generation. Understanding the resistance information of each individual battery cell helps detect potential resistance imbalances.

[0194] This embodiment mainly describes the specific content of the consistency information of individual cells, the consistency information of the free power range, and the consistency information of the paid power range. By comprehensively utilizing this consistency information, the battery management unit or cloud platform can gain a more comprehensive understanding of the overall status and health of the battery assembly. This helps the battery management unit or cloud platform to effectively manage faulty batteries during charging or discharging, thereby ensuring the safe operation and reliability of the battery assembly.

[0195] Figure 12 This is a schematic diagram of the structure of a first embodiment of the vehicle battery management device provided in this application. Figure 12 As shown, the vehicle battery management device 1200 includes:

[0196] The detection module 1201 is used to detect the remaining power of each individual battery cell in the vehicle in real time.

[0197] The processing module 1202 is used to lock the use of a single battery if the remaining power of a single battery reaches a preset paid power range, and push paid power usage confirmation information, which includes payment information for the user to pay for the paid power range usage.

[0198] Optionally, the processing module 1202 is also used for:

[0199] If the payment confirmation message indicates that the user has paid for the paid range of electricity used by a single battery cell, then the use of the single battery cell will be unlocked to allow it to continue discharging.

[0200] Optionally, the processing module 1202 is also used for:

[0201] If the payment confirmation message indicates that the user has not paid for the paid power range of the single battery cell, the single battery cell will remain locked.

[0202] or,

[0203] If an instruction is received from the user's mobile terminal or vehicle terminal indicating that the paid battery charge should not be used, the individual battery will remain locked.

[0204] The vehicle battery management device provided in this embodiment can be used to execute the vehicle battery management method in any of the aforementioned method embodiments. Its implementation principle and technical effect are similar, and will not be described again here.

[0205] Figure 13 This is a schematic diagram of the structure of Embodiment 2 of the vehicle battery management device provided in this application. Figure 13 As shown, the vehicle battery management device 1200 also includes:

[0206] Module 1203 is used for:

[0207] Receive payment confirmation information sent by the cloud platform. The payment confirmation information is used to indicate whether the user has paid for the paid power range of the single battery.

[0208] The vehicle battery management device provided in this embodiment can be used to execute the vehicle battery management method in any of the aforementioned method embodiments. Its implementation principle and technical effect are similar, and will not be described again here.

[0209] Figure 14 This is a schematic diagram of the structure of Embodiment 3 of the vehicle battery management device provided in this application. Figure 14 As shown, the vehicle battery management device 1400 includes:

[0210] The acquisition module 1401 is used to acquire the consistency information of individual cells in the battery pack of the vehicle, the consistency information of the free power range, and the consistency information of the paid power range.

[0211] The processing module 1402 is used to perform safety management on faulty batteries in the battery pack based on the consistency information of individual battery cells, the consistency information of the free power range, and the consistency information of the paid power range.

[0212] Optionally, the processing module 1402 is also used for:

[0213] Based on the consistency information of individual cells, the consistency information of the free power range, and the consistency information of the paid power range, determine whether there are faulty cells in the battery pack.

[0214] If there is at least one faulty battery in the battery pack, then the at least one faulty battery shall be managed safely during the charging or discharging of the battery pack.

[0215] Optionally, the individual cell consistency information includes temperature anomaly information, voltage information, current information, and resistance information for each individual cell;

[0216] The consistency information for the free power range includes the voltage, current, and resistance information for each individual cell within the free power range.

[0217] The consistency information for the chargeable charge range includes the voltage, current, and resistance information for each individual battery cell within the chargeable charge range.

[0218] The vehicle battery management device provided in this embodiment can be used to execute the vehicle battery management method in any of the aforementioned method embodiments. Its implementation principle and technical effect are similar, and will not be described again here.

[0219] This embodiment provides a computer-readable storage medium storing computer-executable instructions, which, when executed by a processor, are used to implement the vehicle battery management method described in the above embodiment.

[0220] This embodiment also provides a computer program product, including a computer program that, when executed by a processor, implements the vehicle battery management method provided in any of the above embodiments.

[0221] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A method for managing vehicle batteries, characterized in that, The method includes: Real-time monitoring of the remaining charge of each individual battery cell in the vehicle; If the remaining power of a single battery cell reaches a preset paid power range, the use of that single battery cell is locked, and a paid power usage confirmation message is pushed to the user. The paid power usage confirmation message includes payment information for the paid power range usage fee. The effective voltage range corresponding to the paid power range of each single battery cell is from a first preset voltage to a second preset voltage. The effective voltage range corresponding to the free power range of each single battery cell is from the second preset voltage to a third preset voltage. The first preset voltage is less than the second preset voltage, the second preset voltage is less than the third preset voltage, and the first preset voltage is greater than 0, while the third preset voltage is less than the maximum rated voltage of the single battery cell. The first preset voltage ranges from 1.5V to 2.75V; the second preset voltage ranges from 3.1V to 3.9V; and the third preset voltage ranges from 3.9V to 4.0V.

2. The method according to claim 1, characterized in that, The method further includes: The user receives payment confirmation information sent by the cloud platform, which indicates whether the user has paid for the paid power range of the single battery cell. If the payment confirmation information indicates that the user has paid for the paid power range of a single battery cell, then the use of the single battery cell is unlocked to allow the single battery cell to continue discharging.

3. The method according to claim 1 or 2, characterized in that, The method further includes: If the payment confirmation information indicates that the user has not paid for the paid power range of the single battery, then the single battery will remain locked. or, If an instruction is received from the user's mobile terminal or vehicle terminal indicating that the paid power of the single battery cell should not be used, the single battery cell will remain locked.

4. A method for managing vehicle batteries, characterized in that, The method includes: The system acquires consistency information for individual cells within the vehicle's battery pack, as well as consistency information for free power ranges and paid power ranges. Specifically, the effective voltage range for each individual cell's paid power range is from a first preset voltage to a second preset voltage; the effective voltage range for each individual cell's free power range is from a second preset voltage to a third preset voltage; the first preset voltage ranges from 1.5V to 2.75V; the second preset voltage ranges from 3.1V to 3.9V; and the third preset voltage ranges from 3.9V to 4.0V. Based on the consistency information of the individual battery cells, the consistency information of the free power range, and the consistency information of the paid power range, it is determined whether there are faulty batteries in the battery assembly. If there is at least one faulty battery in the battery assembly, the at least one faulty battery shall be safely managed during the charging or discharging process of the battery assembly.

5. The method according to claim 4, characterized in that, The individual cell consistency information includes temperature anomaly information, voltage information, current information, and resistance information for each individual cell; The consistency information of the free power range includes the voltage, current and resistance information of the free power range for each individual battery cell. The consistency information of the paid power range includes the voltage, current and resistance information of each individual battery cell within the paid power range.

6. A vehicle battery management device, characterized in that, The device includes: The detection module is used to detect the remaining power of each individual battery cell in the vehicle in real time. The processing module is configured to lock the use of a single battery if its remaining power reaches a preset paid power range, and push a paid power usage confirmation message, which includes payment information for the paid power range usage fee to the user. The effective voltage range corresponding to the paid power range of each single battery is from a first preset voltage to a second preset voltage; the effective voltage range corresponding to the free power range of each single battery is from the second preset voltage to a third preset voltage; wherein the first preset voltage is less than the second preset voltage, the second preset voltage is less than the third preset voltage, and the first preset voltage is greater than 0, and the third preset voltage is less than the maximum rated voltage of the single battery; the first preset voltage ranges from 1.5V to 2.75V; the second preset voltage ranges from 3.1V to 3.9V; and the third preset voltage ranges from 3.9V to 4.0V.

7. A vehicle battery management device, characterized in that, The device includes: The acquisition module is used to acquire consistency information of individual cells in the vehicle's battery pack, consistency information of the free power range, and consistency information of the paid power range. Specifically, the effective voltage range for the paid power range of each individual cell is from a first preset voltage to a second preset voltage; the effective voltage range for the free power range of each individual cell is from a second preset voltage to a third preset voltage; the first preset voltage ranges from 1.5V to 2.75V; the second preset voltage ranges from 3.1V to 3.9V; and the third preset voltage ranges from 3.9V to 4.0V. The processing module is used to determine whether there is a faulty battery in the battery pack based on the consistency information of the individual battery, the consistency information of the free power range, and the consistency information of the paid power range; if there is at least one faulty battery in the battery pack, then the at least one faulty battery is safely managed during the charging or discharging process of the battery pack.

8. A vehicle, characterized in that, The method includes: The vehicle body, including the battery pack and control unit located inside the vehicle body; The control unit is used to execute the vehicle battery management method according to any one of claims 1 to 5.

9. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer-executable instructions, which, when executed by a processor, are used to implement the vehicle battery management method according to any one of claims 1 to 5.

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