An intelligent management system for charging and discharging lithium batteries

Abstract

The present invention discloses an intelligent management system for charging and discharging a lithium battery, and relates to the technical field of lithium battery charging and discharging management. The intelligent management system for charging and discharging a lithium battery provided by the present invention can help users select suitable lithium batteries by analyzing users' requirements for the use of lithium batteries in real time, thereby meeting their driving requirements on electric bicycles and improving user experience. It can intelligently analyze whether the lithium battery can meet the user's requirements based on driving speed and destination distance, provide decision support and suggestions, and reduce the inconvenience and trouble of users during use. By evaluating the user's usage, battery problems can be discovered in advance, reducing the situation of insufficient power in actual use by users, improving safety and convenience, and calculating the charging influence factor based on the charging influence parameter, which is helpful to adjust the charging method, optimize the charging process, extend the battery life, and improve the charging efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of lithium battery charge and discharge management, and in particular to an intelligent lithium battery charge and discharge management system. Background Art

[0002] With the rise of new energy vehicles such as electric cars, electric bicycles, and electric scooters, lithium batteries, as their main energy source, have a growing demand for management systems. How to effectively manage and optimize the battery charging and discharging process for products that use lithium batteries, such as electric vehicles and portable electronic devices, can not only extend battery life and improve energy efficiency, but also reduce energy waste, meeting energy management and environmental protection requirements.

[0003] Prior art, such as the invention patent application with announcement number CN102916456A, discloses an intelligent management system and method for charging and discharging lithium batteries, including a lithium battery charging and discharging management module, a lithium battery voltage over-discharge protection module, a lithium battery discharge over-current protection module and a boost module. Correspondingly, the present invention also provides a lithium battery charging and discharging management method, and the provided lithium battery charging and discharging management system and method realize the application management of a single lithium battery, overcoming the differences between lithium batteries caused by multiple lithium batteries in series in the prior art. The present invention adopts a lithium battery charging and discharging management module to manage the charging and discharging process of the lithium battery, greatly enhancing the life of the lithium battery. At the same time, the system is protected by a lithium battery voltage over-discharge protection module and a lithium battery discharge over-current protection module, so that the system does not need to add a lithium battery protection board, so it has the advantages of safety and reliability, simple implementation, low cost, and easy promotion and application.

[0004] With respect to the above-mentioned scheme, the applicant of the present invention has found that the above-mentioned technology has at least the following technical problems: 1. In the charging and discharging process of the lithium battery, over-discharge protection and discharge overcurrent protection modules are mentioned, but the protection performance is relatively weak, and does not cover temperature control and multi-factor protection during the charging process. There is a problem of insufficient protection performance. In the analysis of the charging and discharging process of the lithium battery, there is a lack of actual application analysis of the lithium battery. The designed charging and discharging management scheme may not be able to effectively solve the problems in actual applications, and lacks pertinence and practicality.

[0005] 2. In the charging process of lithium batteries, there is a lack of temperature control. The lithium battery may overheat due to excessively high temperature during the charging process, causing safety hazards or even serious consequences such as fire or explosion. When the lithium battery is at too low a temperature, its charging efficiency will be affected and the optimal charging effect cannot be achieved, resulting in extended charging time or shortened battery life. The lack of evaluation and matching analysis of lithium battery discharge performance may cause the lithium battery selected by the user to fail to meet the needs during actual use, resulting in performance mismatch. Summary of the invention

[0006] The purpose of the present invention is to provide an intelligent management system for charging and discharging lithium batteries, which solves the problems existing in the background technology.

[0007] In order to solve the above technical problems, the present invention adopts the following technical solutions: The present invention provides an intelligent management system for charging and discharging lithium batteries, including: a lithium battery discharge management module, which is used to obtain the user's corresponding usage requirements during the use of an electric bicycle equipped with a lithium battery, so as to analyze whether the lithium battery can meet the user's needs.

[0008] The lithium battery charging management module is used when the lithium battery equipped with the electric bicycle needs to be charged. It obtains the user's corresponding usage information through the intelligent charging box management platform, and analyzes the corresponding replacement process of the lithium battery according to the user's corresponding usage needs, thereby determining the lithium battery that meets the user's usage needs.

[0009] The charging process analysis module is used to obtain charging influencing parameters corresponding to the lithium battery when the lithium battery is placed in a designated lithium battery charging station for charging. The charging influencing parameters include battery capacity, remaining battery power, and ambient temperature.

[0010] The charging mode analysis module is used to calculate the charging influence factor corresponding to the lithium battery according to the charging influence parameter corresponding to the lithium battery, thereby analyzing the charging mode corresponding to the lithium battery.

[0011] The temperature control module is used to control the real-time temperature of the lithium battery during the charging process through the intelligent charging box.

[0012] The display terminal is used to display a prompt when a certain lithium battery cannot meet the user's needs, and to display a prompt when a lithium battery that meets the user's needs is determined.

[0013] Preferably, the analysis of whether the lithium battery can meet the user's needs is performed in the following specific analysis process:

[0014] A1. Before using an electric bicycle equipped with a lithium battery, the user enters the corresponding usage requirements on the electronic screen equipped with the electric bicycle, including the destination and required duration;

[0015] A2. The electric bicycle execution terminal obtains the remaining battery power of the equipped lithium battery, and obtains the corresponding driving distance of the electric bicycle in each driving speed range according to the corresponding discharge power of the lithium battery, and obtains the corresponding average driving speed requirement of the user according to the corresponding required time and destination distance of the user;

[0016] A3. Compare the average driving speed corresponding to the user with each driving speed interval. If the average driving speed corresponding to the user belongs to a certain driving speed interval, and the driving distance corresponding to the driving speed interval is greater than or equal to the destination distance corresponding to the user, it means that the lithium battery equipped with the electric bicycle can meet the user's needs. If the average driving speed corresponding to the user belongs to a certain driving speed interval, and the driving distance corresponding to the driving speed interval is less than the destination distance corresponding to the user, it means that the lithium battery equipped with the electric bicycle cannot meet the user's needs.

[0017] Preferably, the replacement process corresponding to the analysis of the lithium battery is specifically analyzed as follows: B1. When the lithium battery equipped with the electric bicycle cannot meet the user's needs, the user enters a search range on the electronic screen of the electric bicycle. According to the search range entered by the user, the electronic screen of the electric bicycle will display each electric bicycle within the search range that meets the user's needs, and display the distance between each electric bicycle and the electric bicycle. The user selects the electric bicycle closest to the electric bicycle, and the lithium battery equipped with the electric bicycle can meet the user's needs;

[0018] B2. When a user chooses to drive an electric bicycle that does not meet the requirements to a nearby designated lithium battery replacement place, the user scans and logs in to the intelligent charging box management platform corresponding to the designated lithium battery replacement place through the mobile phone app, chooses to replace the lithium battery, and the intelligent charging box opens the empty charging box in the order of the charging box numbers. After the user puts the lithium battery that does not meet the requirements into the charging box, the camera inside the charging box scans the battery number corresponding to the lithium battery and records and uploads the battery information corresponding to the lithium battery;

[0019] B3. The intelligent charging box management platform obtains the user's corresponding usage information, which includes the driving distance, driving time, and average driving speed corresponding to each previous use of the electric motorcycle, and then analyzes the user's corresponding lithium battery usage evaluation coefficient, and compares the user's corresponding lithium battery usage evaluation coefficient with the preset lithium battery usage evaluation coefficient ranges. If the user's corresponding lithium battery usage evaluation coefficient belongs to a certain lithium battery usage evaluation coefficient range, it means that the lithium battery meets the user's use requirements for driving an electric bicycle, thereby obtaining various lithium batteries that meet the user's use requirements for driving an electric bicycle, and according to the user's corresponding usage requirements, a lithium battery that meets the user's usage needs is obtained.

[0020] Preferably, the analysis obtains the lithium battery usage evaluation coefficient corresponding to the user, and the specific analysis process is as follows: obtaining standard usage information from historical data in the database, the standard usage information including standard driving distance, standard driving time, and standard average driving speed;

[0021] By calculating the formula

[0022] The lithium battery usage evaluation coefficient α corresponding to the user is obtained, where j is the number of times the user drives the electric bicycle, j=1, 2, ..., n, and n is an arbitrary integer greater than 2, wherein Tj, Pj, and Wj represent the driving distance, driving time, and average driving speed corresponding to the jth use of the electric bicycle by the user, and T′,

[0023] P′ and W′ represent the standard driving distance, standard driving time, and standard average driving speed, respectively. η1, η2, and η3 represent the weight factors corresponding to the set driving distance, the weight factors corresponding to the driving time, and the weight factors corresponding to the average driving speed, respectively.

[0024] Preferably, the charging influence factor corresponding to the lithium battery is obtained by calculation, and the specific calculation process is as follows: obtaining the standard charging influence parameters corresponding to the lithium battery from the historical data in the database, the standard charging influence parameters including the standard battery capacity, the standard battery remaining power, and the standard ambient temperature;

[0025] According to the calculation formula The charging influence factor β corresponding to the lithium battery is obtained, where q is the number corresponding to each collection time point, q=1, 2, ..., p, and p is any integer greater than 2, wherein Q and Z represent the battery capacity and the remaining battery power of the lithium battery before charging, respectively, and Hq represents the ambient temperature corresponding to the qth collection time point, respectively. Q′, Z′, and H′ represent the standard battery capacity, the standard remaining battery power, and the standard ambient temperature, respectively. π1, π2, and π3 are the weight factors corresponding to the set battery capacity, the weight factors corresponding to the remaining battery power, and the weight factors corresponding to the ambient temperature, respectively.

[0026] Preferably, the analysis of the charging method corresponding to the lithium battery is specifically carried out as follows: comparing the charging influence factor corresponding to the lithium battery with the corresponding charging standard coefficient intervals in the intelligent charging box. The corresponding charging standard coefficient intervals in the intelligent charging box correspond to the charging parameters, and the charging parameters include charging voltage, charging current, and charging power. If the charging influence factor corresponding to the lithium battery belongs to a certain charging standard coefficient interval corresponding to the intelligent charging box, then the charging method corresponding to the lithium battery is the charging parameter corresponding to the charging standard coefficient.

[0027] Preferably, the real-time temperature of the lithium battery during the charging process is controlled, and the specific control process is as follows: when the lithium battery is placed in an intelligent charging box for charging, the real-time temperature corresponding to the lithium battery is obtained through a temperature sensing device arranged in the charging box. When the user places a lithium battery with insufficient power into the intelligent charging box for charging, the temperature sensing device obtains the real-time temperature corresponding to the lithium battery. When the real-time temperature corresponding to the lithium battery exceeds the set optimal charging temperature range, the lithium battery is cooled by a heat sink installed in the intelligent charging box. When the real-time temperature corresponding to the lithium battery is less than the set optimal charging temperature range, the lithium battery is heated by a heating module arranged in the intelligent charging box. When the real-time temperature corresponding to the lithium battery belongs to the set optimal charging temperature range, the charging operation is performed;

[0028] If the temperature of the lithium battery exceeds the set optimal charging temperature range during charging, the lithium battery will be cooled to ensure that the temperature of the lithium battery is always within the set optimal charging temperature range. If the temperature of the lithium battery cannot be lowered to the optimal charging temperature range through cooling operation during charging, charging will be stopped and charging will be performed again when the temperature is lowered to the optimal charging temperature range.

[0029] The beneficial effects of the present invention are: 1. A lithium battery charging and discharging intelligent management system provided by the present invention can help users select suitable lithium batteries by analyzing users' requirements for lithium battery use in real time, thereby meeting their driving needs on electric bicycles and improving user experience. It can intelligently analyze whether the lithium battery can meet user needs based on driving speed and destination distance, provide decision support and suggestions, and reduce the inconvenience and trouble of users during use. By evaluating the user's usage, battery problems can be discovered in advance, reducing the situation of insufficient power in actual use by users, improving safety and convenience, and calculating the charging influence factor based on the charging influence parameter, which is helpful to adjust the charging method, optimize the charging process, extend battery life, and improve charging efficiency. It can select a suitable charging method according to the actual situation of the lithium battery, effectively utilize charging resources, and reduce energy consumption and costs.

[0030] 2. The embodiment of the present invention can avoid potential safety hazards caused by excessively high or low temperatures by real-time monitoring of the temperature of the lithium battery, ensure the safety and stability of the charging process, and take corresponding measures according to the temperature conditions, such as heat dissipation or heating, which is beneficial to protecting the lithium battery, extending the battery life, and improving the charging efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0032] Figure 1 It is a schematic diagram of the system structure connection of the present invention. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] See also Figure 1 As shown, the present invention provides an intelligent management system for charging and discharging of lithium batteries, which includes: a lithium battery discharge management module, a lithium battery charging management module, a charging process analysis module, a charging mode analysis module, a temperature control module, a display terminal and a database.

[0035] The lithium battery discharge management module is connected to the lithium battery charging management module and the display terminal respectively; the lithium battery charging management module is connected to the charging process analysis module, the database and the display terminal respectively; the charging process analysis module is connected to the charging mode analysis module and the database respectively; the charging mode analysis module is connected to the temperature control module; and the temperature control module is connected to the display terminal.

[0036] The lithium battery discharge management module is used to obtain the user's corresponding usage requirements during the use of an electric bicycle equipped with a lithium battery, so as to analyze whether the lithium battery can meet the user's needs.

[0037] In a specific embodiment, the analysis of whether the lithium battery can meet the user's needs is performed as follows: A1. Before using the electric bicycle equipped with a lithium battery, the user enters the corresponding usage requirements on the electronic screen equipped with the electric bicycle, and the usage requirements include the destination and the required duration;

[0038] A2. The electric bicycle execution terminal obtains the remaining battery power of the equipped lithium battery, and obtains the corresponding driving distance of the electric bicycle in each driving speed range according to the corresponding discharge power of the lithium battery, and obtains the corresponding average driving speed requirement of the user according to the corresponding required time and destination distance of the user;

[0039] A3. Compare the average driving speed corresponding to the user with each driving speed interval. If the average driving speed corresponding to the user belongs to a certain driving speed interval, and the driving distance corresponding to the driving speed interval is greater than or equal to the destination distance corresponding to the user, it means that the lithium battery equipped with the electric bicycle can meet the user's needs. If the average driving speed corresponding to the user belongs to a certain driving speed interval, and the driving distance corresponding to the driving speed interval is less than the destination distance corresponding to the user, it means that the lithium battery equipped with the electric bicycle cannot meet the user's needs.

[0040] It should be noted that user needs are the corresponding usage needs input into the electronic screen equipped with the electric bicycle.

[0041] The lithium battery charging management module is used when the lithium battery equipped with the electric bicycle needs to be charged. It obtains the user's corresponding usage information through the intelligent charging box management platform, and analyzes the corresponding replacement process of the lithium battery according to the user's corresponding usage needs, thereby determining the lithium battery that meets the user's usage needs.

[0042] In a specific embodiment, the replacement process corresponding to the analysis of the lithium battery is specifically analyzed as follows: B1. When the lithium battery equipped with the electric bicycle cannot meet the user's needs, the user enters a search range on the electronic screen of the electric bicycle. According to the search range entered by the user, the electronic screen of the electric bicycle will display each electric bicycle within the search range that meets the user's needs, and display the distance between each electric bicycle and the electric bicycle. The user selects the electric bicycle closest to the electric bicycle, and the lithium battery equipped with the electric bicycle can meet the user's needs;

[0043] B2. When a user chooses to drive an electric bicycle that does not meet the requirements to a nearby designated lithium battery replacement place, the user scans and logs in to the intelligent charging box management platform corresponding to the designated lithium battery replacement place through the mobile phone app, chooses to replace the lithium battery, and the intelligent charging box opens the empty charging box in the order of the charging box numbers. After the user puts the lithium battery that does not meet the requirements into the charging box, the camera inside the charging box scans the battery number corresponding to the lithium battery and records and uploads the battery information corresponding to the lithium battery;

[0044] B3. The intelligent charging box management platform obtains the user's corresponding usage information, which includes the driving distance, driving time, and average driving speed corresponding to each previous use of the electric motorcycle, and then analyzes the user's corresponding lithium battery usage evaluation coefficient, and compares the user's corresponding lithium battery usage evaluation coefficient with the preset lithium battery usage evaluation coefficient ranges. If the user's corresponding lithium battery usage evaluation coefficient belongs to a certain lithium battery usage evaluation coefficient range, it means that the lithium battery meets the user's use requirements for driving an electric bicycle, thereby obtaining various lithium batteries that meet the user's use requirements for driving an electric bicycle, and according to the user's corresponding usage requirements, a lithium battery that meets the user's usage needs is obtained.

[0045] In a specific embodiment, the analysis obtains the lithium battery usage evaluation coefficient corresponding to the user, and the specific analysis process is as follows:

[0046] Obtaining standard usage information from historical data in a database, the standard usage information including standard driving distance, standard driving time, and standard driving average speed;

[0047] By calculating the formula

[0048] The lithium battery usage evaluation coefficient α corresponding to the user is obtained, where j is the number of times the user drives the electric bicycle, j=1, 2, ..., n, and n is an arbitrary integer greater than 2, wherein Tj, Pj, and Wj represent the driving distance, driving time, and average driving speed corresponding to the jth use of the electric bicycle by the user, and T′,

[0049] P′ and W′ represent the standard driving distance, standard driving time, and standard average driving speed, respectively. η1, η2, and η3 represent the weight factors corresponding to the set driving distance, the weight factors corresponding to the driving time, and the weight factors corresponding to the average driving speed, respectively.

[0050] It should be noted that the values ​​of η1, η2, and η3 are all greater than 0 and less than 1.

[0051] It should also be noted that the number of times the lithium battery in the smart charging box did not meet the user's requirements in the past, namely, the number of times the driving distance failed, the number of times the driving time failed, and the number of times the average driving speed failed, are obtained from the historical data in the database, and the total number of failures is counted. The number of times the driving distance failed, the number of times the driving time failed, and the number of times the average driving speed failed are divided by the total number of failures, and the result obtained is the weight factor corresponding to the set driving distance, the weight factor corresponding to the driving time, and the weight factor corresponding to the average driving speed.

[0052] The charging process analysis module is used to obtain charging influencing parameters corresponding to the lithium battery when the lithium battery is placed in a designated lithium battery charging station for charging. The charging influencing parameters include battery capacity, remaining battery power, and ambient temperature.

[0053] In a specific embodiment, the charging influencing parameter corresponding to the lithium battery is obtained, and the specific acquisition process is as follows:

[0054] C1. Using artificial intelligence technology, an intelligent sensing device is installed on the lithium battery. The intelligent sensing device monitors the battery capacity of the lithium battery in real time and transmits data to the control terminal, thereby obtaining the corresponding battery capacity of the lithium battery;

[0055] C2. Install a sensor with intelligent identification function on the lithium battery to monitor the remaining power of the battery in real time, and transmit the monitored current, voltage and resistance to the control terminal to obtain the remaining battery power corresponding to the lithium battery;

[0056] C3. Install an ambient temperature sensor near the designated lithium battery charging point, and monitor the change of ambient temperature in real time according to the set collection time points, thereby obtaining the ambient temperature corresponding to each collection time point.

[0057] The charging mode analysis module is used to calculate the charging influence factor corresponding to the lithium battery according to the charging influence parameter corresponding to the lithium battery, thereby analyzing the charging mode corresponding to the lithium battery;

[0058] In a specific embodiment, the charging influence factor corresponding to the lithium battery is obtained by calculation, and the specific calculation process is as follows: obtaining the standard charging influence parameters corresponding to the lithium battery from the historical data in the database, the standard charging influence parameters including the standard battery capacity, the standard battery remaining power, and the standard ambient temperature;

[0059] According to the calculation formula The charging influence factor β corresponding to the lithium battery is obtained, where q is the number corresponding to each collection time point, q=1, 2, ..., p, and p is any integer greater than 2, wherein Q and Z represent the battery capacity and the remaining battery power of the lithium battery before charging, respectively, and Hq represents the ambient temperature corresponding to the qth collection time point, respectively. Q′, Z′, and H′ represent the standard battery capacity, the standard remaining battery power, and the standard ambient temperature, respectively. π1, π2, and π3 are the weight factors corresponding to the set battery capacity, the weight factors corresponding to the remaining battery power, and the weight factors corresponding to the ambient temperature, respectively.

[0060] It should be noted that the values ​​of π1, π2, and π3 are all greater than 0 and less than 1.

[0061] It should also be noted that based on expert opinions and the charging influencing parameters corresponding to the charging of lithium batteries obtained from historical data, the weight factor value corresponding to the specific battery capacity, the weight factor value corresponding to the remaining battery power, and the weight factor value corresponding to the ambient temperature are determined.

[0062] In a specific embodiment, the charging method corresponding to the analysis of the lithium battery is specifically analyzed as follows: the charging influence factor corresponding to the lithium battery is compared with the corresponding charging standard coefficient intervals in the intelligent charging box. The corresponding charging standard coefficient intervals in the intelligent charging box correspond to the charging parameters, and the charging parameters include charging voltage, charging current, and charging power. If the charging influence factor corresponding to the lithium battery belongs to a certain charging standard coefficient interval corresponding to the intelligent charging box, then the charging method corresponding to the lithium battery is the charging parameter corresponding to the charging standard coefficient.

[0063] It should be noted that if the charging influence factor corresponding to a certain lithium battery belongs to a certain charging standard coefficient range corresponding to the intelligent charging box, the intelligent charging box charges the lithium battery according to the preset charging parameters.

[0064] The temperature control module is used to control the real-time temperature of the lithium battery during the charging process through the intelligent charging box.

[0065] In a specific embodiment, the real-time temperature of the lithium battery during the charging process is controlled, and the specific control process is as follows: when the lithium battery is placed in an intelligent charging box for charging, the real-time temperature corresponding to the lithium battery is obtained through a temperature sensing device arranged in the charging box. When the user places a lithium battery with insufficient power into the intelligent charging box for charging, the temperature sensing device obtains the real-time temperature corresponding to the lithium battery. When the real-time temperature corresponding to the lithium battery exceeds the set optimal charging temperature range, the lithium battery is cooled by a heat sink installed in the intelligent charging box. When the real-time temperature corresponding to the lithium battery is less than the set optimal charging temperature range, the lithium battery is heated by a heating module arranged in the intelligent charging box. When the real-time temperature corresponding to the lithium battery belongs to the set optimal charging temperature range, the charging operation is performed;

[0066] If the temperature of the lithium battery exceeds the set optimal charging temperature range during charging, the lithium battery will be cooled to ensure that the temperature of the lithium battery is always within the set optimal charging temperature range. If the temperature of the lithium battery cannot be lowered to the optimal charging temperature range through cooling operation during charging, charging will be stopped and charging will be performed again when the temperature is lowered to the optimal charging temperature range.

[0067] It should be noted that the heat of the battery is conducted to the heat sink, and then dissipated through air convection or passive heat dissipation, so as to reduce the battery temperature. When the temperature of the lithium battery belongs to the set optimal charging temperature range, the temperature reduction is stopped and the heating module heats up the lithium battery. When the temperature of the lithium battery belongs to the set optimal charging temperature range, the temperature increase is stopped after the charging operation is performed.

[0068] The embodiment of the present invention can avoid safety hazards caused by excessively high or low temperatures by real-time monitoring of the temperature of the lithium battery, ensure the safety and stability of the charging process, and take corresponding measures according to the temperature conditions, such as heat dissipation or heating, which is beneficial to protecting the lithium battery, extending the battery life, and improving the charging efficiency.

[0069] The display terminal is used to display a prompt when a certain lithium battery can meet the user's needs, and to display a prompt when a certain lithium battery cannot meet the user's needs.

[0070] The database is used to store standard usage information, which includes standard driving distance, standard driving time, standard average driving speed, and standard charging influencing parameters. The standard charging influencing parameters include standard battery capacity, standard battery remaining power, and standard ambient temperature. In the past, when the lithium battery in the smart charging box did not meet the user's requirements, the corresponding user's driving distance failed, driving time failed, and average driving speed failed.

[0071] The present invention provides an intelligent management system for charging and discharging a lithium battery. By analyzing the user's demand for the use of lithium batteries in real time, it can help the user select a suitable lithium battery to meet his or her driving needs on an electric bicycle and improve the user experience. It can intelligently analyze whether the lithium battery can meet the user's needs based on the driving speed and the distance to the destination, provide decision support and suggestions, and reduce the inconvenience and trouble of the user during use. By evaluating the user's usage, it can discover battery problems in advance and reduce the situation of insufficient power in actual use by the user, thereby improving safety and convenience. It can calculate the charging influence factor based on the charging influence parameter, which is helpful to adjust the charging method, optimize the charging process, extend the battery life, and improve the charging efficiency. It can select a suitable charging method according to the actual situation of the lithium battery, effectively utilize charging resources, and reduce energy consumption and costs.

[0072] The above contents are merely examples and explanations of the concept of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the concept of the invention or exceed the scope defined in this specification, they shall all fall within the protection scope of the present invention.

Claims

1. A lithium battery charge and discharge management system, characterized in that: include: The lithium battery discharge management module is used to obtain the user's corresponding usage requirements during the use of the electric bicycle equipped with a lithium battery, so as to analyze whether the lithium battery can meet the user's needs; The specific analysis process of analyzing whether the lithium battery can meet the user's needs is as follows: A1. Before using an electric bicycle equipped with a lithium battery, the user enters the corresponding usage requirements on the electronic screen equipped with the electric bicycle, including the destination and required duration; A2. The electric bicycle execution terminal obtains the remaining battery power of the equipped lithium battery, and obtains the corresponding driving distance of the electric bicycle in each driving speed range according to the corresponding discharge power of the lithium battery, and obtains the corresponding average driving speed requirement of the user according to the corresponding required time and destination distance of the user; A3. Compare the average driving speed corresponding to the user with each driving speed interval. If the average driving speed corresponding to the user is within a certain driving speed interval, and the driving distance corresponding to the driving speed interval is greater than or equal to the distance to the destination corresponding to the user, it means that the lithium battery equipped with the electric bicycle can meet the needs of the user. If the average driving speed corresponding to the user is within a certain driving speed interval, and the driving distance corresponding to the driving speed interval is less than the distance to the destination corresponding to the user, it means that the lithium battery equipped with the electric bicycle cannot meet the needs of the user. The lithium battery charging management module is used to obtain the user's corresponding usage information through the intelligent charging box management platform when the lithium battery equipped with the electric bicycle needs to be charged, and analyze the corresponding replacement process of the lithium battery according to the user's corresponding usage needs, thereby determining the lithium battery that meets the user's usage needs; The replacement process of the lithium battery is analyzed as follows: B1. When the lithium battery equipped with the electric bicycle cannot meet the user's needs, the user enters a search range on the electronic screen of the electric bicycle. According to the search range entered by the user, the electronic screen of the electric bicycle will display various electric bicycles within the search range that meet the user's needs, and display the distance between each electric bicycle and the electric bicycle. The user selects the electric bicycle closest to the user, and the lithium battery equipped with the electric bicycle can meet the user's needs. B2. When a user chooses to drive an electric bicycle that does not meet the requirements to a nearby designated lithium battery replacement place, the user scans and logs in to the intelligent charging box management platform corresponding to the designated lithium battery replacement place through the mobile phone app, chooses to replace the lithium battery, and the intelligent charging box opens the empty charging box in the order of the charging box numbers. After the user puts the lithium battery that does not meet the requirements into the charging box, the camera inside the charging box scans the battery number corresponding to the lithium battery and records and uploads the battery information corresponding to the lithium battery; B3. The intelligent charging box management platform obtains the corresponding usage information of the user, including the driving distance, driving time, and average driving speed corresponding to each previous use of the electric bicycle, and then analyzes and obtains the corresponding lithium battery usage evaluation coefficient of the user, and compares the corresponding lithium battery usage evaluation coefficient of the user with the preset lithium battery usage evaluation coefficient intervals. If the corresponding lithium battery usage evaluation coefficient of the user belongs to a certain lithium battery usage evaluation coefficient interval, it means that the lithium battery meets the user's driving electric bicycle usage requirements, thereby obtaining various lithium batteries that meet the user's driving electric bicycle usage requirements, and according to the corresponding usage requirements of the user, obtains a lithium battery that meets the user's usage requirements; The analysis obtains the lithium battery usage evaluation coefficient corresponding to the user, and the specific analysis process is as follows: Obtaining standard usage information from historical data in a database, the standard usage information including standard driving distance, standard driving time, and standard driving average speed; By calculating the formula Obtain the lithium battery use evaluation coefficient α corresponding to the user, j is the number of times the user drives the electric bicycle, j=1, 2, ..., n, n is any integer greater than 2, wherein Tj, Pj, Wj represent the driving distance, driving time, and average driving speed corresponding to the jth use of the electric bicycle by the user, T′, P′, W′ represent the standard driving distance, standard driving time, and standard average driving speed, respectively, η1, η2, η3 are the weight factors corresponding to the set driving distance, the weight factors corresponding to the driving time, and the weight factors corresponding to the average driving speed, respectively; The charging process analysis module is used to obtain the charging influencing parameters corresponding to the lithium battery when the lithium battery is placed in the designated lithium battery charging station for charging. The charging influencing parameters include battery capacity, remaining battery power, and ambient temperature; The charging mode analysis module is used to calculate the charging influence factor corresponding to the lithium battery according to the charging influence parameter corresponding to the lithium battery, thereby analyzing the charging mode corresponding to the lithium battery; The calculation is used to obtain the charging influence factor corresponding to the lithium battery. The specific calculation process is as follows: Obtaining standard charging influence parameters corresponding to lithium batteries from historical data in the database, the standard charging influence parameters including standard battery capacity, standard battery remaining power, and standard ambient temperature; According to the calculation formula Obtain the charging influence factor β corresponding to the lithium battery, where q is the number corresponding to each acquisition time point, q=1, 2, ..., p, and p is any integer greater than 2, wherein Q and Z represent the battery capacity and the remaining battery power of the lithium battery before charging, respectively, and Hq represents the ambient temperature corresponding to the qth acquisition time point, respectively. Q′, Z′, and H′ represent the standard battery capacity, the standard remaining battery power, and the standard ambient temperature, respectively. π1, π2, and π3 are the weight factors corresponding to the set battery capacity, the weight factors corresponding to the remaining battery power, and the weight factors corresponding to the ambient temperature, respectively. The specific analysis process of analyzing the charging method corresponding to the lithium battery is as follows: Compare the charging influence factor corresponding to the lithium battery with the corresponding charging standard coefficient intervals in the intelligent charging box. The corresponding charging standard coefficient intervals in the intelligent charging box correspond to various charging parameters, including charging voltage, charging current, and charging power. If the charging influence factor corresponding to the lithium battery belongs to a charging standard coefficient interval corresponding to the intelligent charging box, the charging method corresponding to the lithium battery is the charging parameter corresponding to the charging standard coefficient; Temperature control module, used to control the real-time temperature of the lithium battery during charging through the intelligent charging box; The real-time temperature of the lithium battery during charging is controlled, and the specific control process is as follows: When a lithium battery is placed in an intelligent charging box for charging, the real-time temperature of the lithium battery is obtained through a temperature sensing device arranged in the charging box. When a user places a lithium battery with insufficient power into the intelligent charging box for charging, the temperature sensing device obtains the real-time temperature of the lithium battery. When the real-time temperature of the lithium battery exceeds the set optimal charging temperature range, the lithium battery is cooled by a heat sink installed in the intelligent charging box. When the real-time temperature of the lithium battery is lower than the set optimal charging temperature range, the lithium battery is heated by a heating module arranged in the intelligent charging box. When the real-time temperature of the lithium battery belongs to the set optimal charging temperature range, the charging operation is performed. If the temperature of the lithium battery exceeds the set optimal charging temperature range during charging, the lithium battery is cooled to ensure that the temperature of the lithium battery is always within the set optimal charging temperature range. If the temperature of the lithium battery cannot be reduced to the optimal charging temperature range through the cooling operation during charging, charging is stopped and the charging operation is performed again when the temperature is reduced to the optimal charging temperature range. The display terminal is used to display a prompt when a certain lithium battery cannot meet the user's needs, and to display a prompt when a lithium battery that meets the user's needs is determined.

2. A lithium battery charge and discharge management system according to claim 1, characterized in that: The specific acquisition process of obtaining the charging influence parameters corresponding to the lithium battery is as follows: C1. Using artificial intelligence technology, an intelligent sensing device is installed on the lithium battery. The intelligent sensing device monitors the battery capacity of the lithium battery in real time and transmits data to the control terminal, thereby obtaining the corresponding battery capacity of the lithium battery; C2. Install a sensor with intelligent identification function on the lithium battery to monitor the remaining power of the battery in real time, and transmit the monitored current, voltage and resistance to the control terminal to obtain the remaining battery power corresponding to the lithium battery; C3. Install an ambient temperature sensor near the designated lithium battery charging point, and monitor the change of ambient temperature in real time according to the set collection time points, thereby obtaining the ambient temperature corresponding to each collection time point.

3. A lithium battery charge and discharge management system according to claim 2, characterized in that: It also includes a database for storing standard usage information, which includes standard driving distance, standard driving time, standard average driving speed, and standard charging influencing parameters. The standard charging influencing parameters include standard battery capacity, standard battery remaining power, and standard ambient temperature.

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