A battery life optimization system
By designing a battery life optimization system, using the power monitoring module, central control module and adjustment module, analyzing the power data and adjusting the charging strategy, the problem of insufficient battery charging management is solved, more scientific charging management is achieved, and battery life is extended.
Patent Information
- Application Number
- CN202410542248.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-30
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2044-04-30
AI Technical Summary
In the prior art, the battery charging management is insufficient, and it is prone to overcharging or insufficient charging, and the impact of ambient temperature on battery charging cannot be effectively controlled.
A battery life optimization system is designed, including a power monitoring module, a central control module and an adjustment module. The central control module analyzes the power data, determines the charging strategy, and adjusts the charging current and the operating power of the heat dissipation device based on the time-voltage change curve and temperature changes.
It improves the scientific nature of the battery's charging management in a charging state, extends the battery's service life, and reduces the loss of the battery during recycling.
Smart Images

Figure CN118173925B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of battery life optimization, and in particular to a battery life optimization system. Background Art
[0002] The main function of batteries is to convert chemical energy into electrical energy, and they are widely used in various fields. In modern life, production, scientific research, and the development of science and technology, batteries play an irreplaceable role. From space rockets and artificial satellites to flashlights and electronic clocks, all require the support of batteries. However, irregular operation, overcharging and over-discharging, long-term use, lack of maintenance, etc. will cause certain damage to the battery, thereby reducing the battery life.
[0003] Chinese Patent Publication No.: CN114041253A discloses a method for optimizing the service life of a battery, comprising: the steps of determining a target state of charge according to the battery temperature, the target state of charge tending to decrease as the temperature increases to control the degradation of the battery according to a reference degradation distribution curve; and charging the battery until the target state of charge is reached;
[0004] It can be seen that the method for optimizing the battery life still has insufficient charging management, and overcharging or undercharging may occur. Moreover, the ambient temperature of the battery under charging state is not well controlled. The ambient temperature has a great impact on the battery. If the ambient temperature is too high, the battery will be overcharged and gas will be generated. If the ambient temperature is too low, the battery will be undercharged. Summary of the invention
[0005] To this end, the present invention provides a battery life optimization system to overcome the problem of insufficient charging management in the prior art.
[0006] To achieve the above object, the present invention provides a battery life optimization system, characterized in that it includes:
[0007] A power monitoring module, which is connected to the battery to obtain the battery power data;
[0008] A central control module, which is connected to the power monitoring module and is used to process and analyze the battery power data obtained by the power monitoring module, and to determine a charging strategy for the battery;
[0009] The regulating module is connected to the central control module and is used to perform heat dissipation operations on the battery based on the results of processing and analysis by the central control module and its internal heat dissipation device, or to regulate the charging current, or to send a notification of changing the battery charging strategy.
[0010] Furthermore, the central control module is used to determine a charging strategy for the battery based on the power in the battery acquired by the power monitoring module, including:
[0011] When it is preliminarily determined that the battery power does not meet the preset standard, the charging current is determined based on the time-power change curve, and when it is determined that the battery power does not meet the preset standard, the trickle charging mode is entered, and after charging is completed, it is determined whether to change the charging strategy based on the power change curve.
[0012] Furthermore, the central control module is used to obtain the time-charge variation curve of the battery when it is preliminarily determined that the charge in the battery does not meet the preset standard, and to determine the charging current for the battery based on the average value of the derivative of the time-charge variation curve.
[0013] Furthermore, the central control module is used to count the charging time of the battery, and, when it is determined that the charging time meets the preset time standard, determine that the current charging strategy is qualified, or, when it is preliminarily determined that the charging time does not meet the preset time standard, determine an improvement plan for the charging strategy based on the distribution of the time-electricity change curve; the central control module is also used to redetermine the charging power based on the difference between the charging time and the preset time standard when it is determined that the charging time does not meet the preset time standard.
[0014] Furthermore, the central control module is used to determine an improved solution of the charging strategy based on whether the charging time to complete each power interval in the time-power variation curve is higher than the preset value of the charging time in the interval when it is preliminarily determined that the charging time does not meet the preset time standard;
[0015] The central control module is also used to determine the operating power of the heat dissipation device based on the temperature change during the charging process, or to determine the charging current based on the difference between the charging time and the preset time standard, or to determine the charging time of the corresponding power interval based on the cumulative usage time of the battery.
[0016] Furthermore, the central control module is provided with several methods for determining the operating power of the heat dissipation device based on the temperature change during the charging process, and the operating power of the heat dissipation device obtained under each determination method is different.
[0017] Furthermore, the central control module is provided with a plurality of current regulation modes for the charging current based on the difference between the charging time and the preset time standard, and the regulation range of the charging current under each current regulation mode is different.
[0018] Furthermore, the central control module is provided with a plurality of preset value adjustment modes for preset values of charging time in each power interval based on the accumulated usage time of the battery, and the adjustment range of the preset value of charging time in each power interval under each preset value adjustment mode is different.
[0019] Furthermore, the central control module is used to determine battery aging when the preset value of the charging time for each power interval is completed and the charging time for each power interval in the time-power variation curve is measured to be still higher than the preset value of the charging time for the interval, and the central control module re-determines the preset charging current for each power interval.
[0020] Furthermore, the central control module is used to determine that a number of power adjustment modes for battery charging power are provided based on the difference between the charging time and the preset time standard when it is determined that the charging time does not meet the preset charging time standard, and the adjustment range of the battery charging power under each power adjustment mode is different.
[0021] Compared with the prior art, the beneficial effects of the present invention lie in that the central control module in the present invention determines to use a preset charging current for charging when it determines that the amount of electricity in the battery meets the preset standard, or determines the charging current based on a charge change curve when it preliminarily determines that the amount of electricity in the battery does not meet the preset standard, or enters a trickle charging mode when it determines that the amount of electricity in the battery does not meet the preset standard, and determines whether to change the charging strategy based on the charge change curve after charging is completed, thereby improving the scientific nature of the charging management of the battery in the charging state, effectively extending the service life of the battery, and reducing the loss of the battery during the cycle use process.
[0022] Furthermore, the central control module obtains the time-charge variation curve of the battery when it preliminarily determines that the charge in the battery does not meet the preset standard, and determines the charging current based on the average value of the derivative of the time-charge variation curve, thereby further improving the scientific nature of the charging management of the battery in the charging state, effectively extending the service life of the battery, and reducing the loss of the battery during the cycle use process.
[0023] Furthermore, the central control module counts the charging time of the battery, and determines that the current charging strategy is qualified when it is determined that the charging time meets the preset time standard, or determines an improvement plan for the charging strategy based on the distribution of the time-electricity change curve when it is preliminarily determined that the charging time does not meet the preset time standard, or determines that the current charging strategy is unqualified when it is determined that the charging time does not meet the preset time standard. The central control module redetermines the charging power based on the difference between the charging time and the preset time standard, further improving the scientific nature of the charging management of the battery in the charging state, effectively extending the battery life, and reducing the battery loss during recycling.
[0024] Furthermore, the central control module, when it preliminarily determines that the charging time does not meet the preset time standard, determines the improved charging strategy based on whether the charging time for each power interval in the time-power change curve is higher than the preset value of the charging time for the interval. This further improves the scientific nature of the charging management of the battery in the charging state, effectively extends the battery life, and reduces the battery loss during recycling.
[0025] Furthermore, the central control module determines the operating power of the battery's heat dissipation device based on the temperature changes during the charging process, thereby further improving the scientific nature of the battery's charging management when it is in the charging state, effectively extending the battery's service life and reducing the battery's loss during recycling.
[0026] Furthermore, the central control module determines the current regulation method for the charging current based on the difference between the charging time and the preset time standard, further improving the scientific nature of the charging management of the battery in the charging state, effectively extending the battery life, and reducing the battery loss during the cycle use process.
[0027] Furthermore, the central control module is used to determine the preset value adjustment method of the charging time for each power interval based on the cumulative usage time of the battery, which further improves the scientific nature of the charging management of the battery in the charging state, effectively extends the service life of the battery, and reduces the loss of the battery during the cycle use process.
[0028] Furthermore, when the central control module completes the preset value adjustment method, if the charging time for each power interval in the time-power variation curve is still higher than the preset value of the charging time in the interval, the battery is determined to be aged, and the central control module uniformly adjusts the preset charging current for each power interval, further improving the scientific nature of the battery's charging management in the charging state, effectively extending the battery's service life, and reducing the battery's loss during recycling.
[0029] Furthermore, when the central control module determines that the charging time does not meet the preset time standard, it determines the power adjustment method for the battery charging power based on the difference between the charging time and the preset time standard, which further improves the scientificity of the battery charging management in the charging state, effectively extends the battery life, and reduces the battery loss during the cycle use process. BRIEF DESCRIPTION OF THE DRAWINGS
[0030] Figure 1 The structure block diagram of the battery life optimization system of the present invention;
[0031] Figure 2 This is a flow chart of the central control module of the present invention determining the battery charging strategy based on the amount of electricity in the battery;
[0032] Figure 3 This is a flow chart of the determination of the battery charging strategy by the central control module of the present invention;
[0033] Figure 4 This is a flow chart of the determination of the improvement scheme of the charging strategy of the central control module described in the present invention. DETAILED DESCRIPTION
[0034] In order to make the objects and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.
[0035] The above and other technical features and advantages of the present invention are described in more detail below in conjunction with the accompanying drawings.
[0036] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.
[0037] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.
[0038] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0039] See also Figure 1As shown, it is a structural block diagram of the battery life optimization system of the present invention. The present invention provides a battery life optimization system, including a power monitoring module, a central control module and an adjustment module; the power monitoring module is connected to the battery to obtain the battery power data; the central control module is connected to the power monitoring module to process and analyze the battery power data obtained by the power monitoring module, and determine the charging strategy for the battery; the adjustment module is connected to the central control module to perform heat dissipation operations on the battery based on the results of processing and analysis by the central control module and its internal heat dissipation device, or adjust the charging current, or send a notification of changing the battery charging strategy.
[0040] See also Figure 2 As shown, it is a flow chart of the central control module of the present invention determining the battery charging strategy based on the power in the battery; the central control module is used to determine the battery charging strategy based on the power in the battery obtained by the power monitoring module, wherein:
[0041] The first determination method is that the central control module determines that the percentage of the remaining power in the battery meets the preset power standard, and determines to use the preset charging current for charging; the first determination method satisfies that the percentage of the remaining power in the battery is less than or equal to the first preset power percentage, and the first preset power percentage is set to 80%; the preset charging current is set to 40mA, and the percentage of the remaining power = the remaining power / the full power of the battery;
[0042] The second determination method is that the central control module preliminarily determines that the percentage of the remaining power in the battery does not meet the preset power standard, and the central control module determines the charging current based on the power change curve; the second determination method satisfies that the percentage of the remaining power in the battery is greater than the first preset power percentage and less than or equal to the second preset power percentage, and the second preset power percentage is set to 95%;
[0043] The third judgment method is that the central control module determines that the percentage of remaining power in the battery does not meet the preset power standard, and the central control module sends a notification to the adjustment module, and the battery enters the trickle charging mode; the third judgment method satisfies that the percentage of remaining power in the battery is greater than the second preset power percentage.
[0044] Please continue reading Figure 1 and Figure 2As shown, the central control module obtains the time-capacity change curve of the battery when it is determined that the remaining power in the battery meets the second determination method, takes time as the independent variable in seconds, and takes the power percentage as the dependent variable, and obtains the average value of the curve derivative based on the time-capacity fitting change curve. The average value of the derivative of the preset change curve is 1, and the charging current is set to drop by 1mA when the derivative of the actual change curve is 0.1 higher than the preset change curve.
[0045] See also Figure 3 As shown, it is a flow chart of the determination of the battery charging strategy by the central control module of the present invention; the central control module counts the cumulative charging time of the battery when determining that the remaining power in the battery meets the third determination method, and sets a determination method for the battery charging strategy based on the charging time, wherein:
[0046] The first strategy determination method is that the central control module determines that the cumulative charging time of the battery is qualified and determines to charge the battery with the current charging current; the first strategy determination method satisfies that the cumulative charging time of the battery is less than or equal to 50h;
[0047] The second strategy determination method is that the central control module preliminarily determines that the cumulative charging time of the battery is unqualified, and the central control module determines an improvement plan for the charging strategy based on the distribution of the time-power change curve; the second strategy determination method satisfies that the cumulative charging time of the battery is greater than 50h and less than or equal to 300h;
[0048] The third strategy determination method is that the central control module determines that the cumulative charging time of the battery is unqualified, and determines that the current charging strategy is unqualified. The central control module redetermines the charging power based on the difference between the charging time and the preset time standard; the third strategy determination method satisfies that the cumulative charging time of the battery is greater than 300h.
[0049] See also Figure 4 As shown, it is a flow chart of the determination of the improved scheme for the charging strategy of the central control module of the present invention; the central control module is provided with a determination method for the improved scheme for the charging strategy based on whether the charging time of each power interval in the time-power variation curve is higher than the preset value of the charging time of the interval when determining that the cumulative charging time of the battery meets the second strategy determination method, wherein:
[0050] The first scheme is determined in that the central control module determines that the charging time of the first power interval is higher than the preset value of the charging time of the interval, and the central control module determines the operating power of the heat dissipation device based on the temperature change during the charging process; the first power interval is set to a percentage of power in the battery less than 80%, and the preset value of the charging time of the first power interval is 15 minutes;
[0051] The second scheme is determined in that the central control module determines that the charging time of the second power interval is higher than the preset value of the charging time of the interval, and the central control module determines the charging current based on the difference between the charging time and the preset time standard; the second power interval is set to a percentage of power in the battery greater than or equal to 80% and less than or equal to 95%, and the preset value of the charging time of the second power interval is 5 minutes;
[0052] The third scheme is determined in that the central control module determines that the charging time of the third power interval is higher than the preset value of the charging time of the interval, and the central control module determines whether to adjust the preset value of the charging time of the corresponding power interval based on the cumulative usage time of the battery; the third power interval is set to a percentage of power in the battery greater than 95%, and the preset value of the charging time of the third power interval is 3 minutes.
[0053] Please continue reading Figures 1 to 4 As shown, the central control module is provided with a determination method for the operating power of the heat dissipation device of the battery based on the temperature change during the charging process when it is determined that the determination method of the first solution is met, wherein:
[0054] The first power determination method is that the central control module determines that the temperature change amplitude during the battery charging process is qualified, and determines that the heat dissipation device works at a preset operating power; the first power determination method satisfies that the temperature change amplitude during the battery charging process is less than or equal to 5°C, and the preset operating power of the heat dissipation device is set to 100W;
[0055] The second power determination method is that the central control module preliminarily determines that the temperature variation during the battery charging process is unqualified, and determines to use the first power adjustment coefficient to adjust the operating power of the heat dissipation device; the second power determination method satisfies that the temperature variation during the battery charging process is greater than 5°C and less than or equal to 10°C, and the first power adjustment coefficient is set to 1.1. After the first power adjustment coefficient is adjusted, the operating power of the heat dissipation device is adjusted to 110W;
[0056] The third power determination method is that the central control module determines that the temperature change amplitude during the battery charging process is unqualified, and determines to adopt the second power adjustment coefficient to adjust the operating power of the heat dissipation device; the third power determination method satisfies that the temperature change amplitude during the battery charging process is greater than 10°C, and the second power adjustment coefficient is set to 1.2. After adjustment by the first power adjustment coefficient, the operating power of the heat dissipation device is adjusted to 120W.
[0057] Please continue reading Figures 1 to 4 As shown, the central control module sets a current regulation mode for the charging current based on the difference between the charging time and the preset time standard when determining that the second scheme determination mode is met, wherein:
[0058] The first current regulation mode is that the central control module determines that the difference between the battery charging time and the preset time standard meets the preset difference standard, and determines to use the preset charging current to charge the battery; the first current regulation mode satisfies that the difference between the battery charging time and the preset time standard is less than or equal to 30s, and the preset time standard is the preset value of the charging time of the second power interval;
[0059] The second current regulation mode is that the central control module preliminarily determines that the difference between the battery charging time and the preset time standard does not meet the preset difference standard, and determines to use the first current regulation coefficient to adjust the preset charging current; the second current regulation mode satisfies that the difference between the battery charging time and the preset time standard is greater than 30s and less than or equal to 90s; the first current regulation coefficient is set to 1.05, and after adjustment by the first current regulation coefficient, the charging current is adjusted to 42mA;
[0060] The third current regulation method is that the central control module determines that the difference between the battery charging time and the preset time standard does not meet the preset difference standard, and determines to adopt the second current regulation coefficient to adjust the preset charging current; the third current regulation method satisfies that the difference between the battery charging time and the preset time standard is greater than 90s; the second current regulation coefficient is set to 1.15, and after adjustment by the second current regulation coefficient, the charging current is adjusted to 46mA.
[0061] Please continue reading Figures 1 to 4 As shown, the central control module sets a preset value adjustment method for the preset value of the charging time for each power interval based on the accumulated usage time of the battery when determining that the third solution determination method is met, wherein:
[0062] The first preset value adjustment mode is that the central control module determines that the cumulative usage time of the battery meets the standard, and determines that the charging time of each power interval adopts the initial preset value; the first preset value adjustment mode satisfies that the cumulative usage time of the battery is less than or equal to 300h;
[0063] The second preset value adjustment mode is that the central control module preliminarily determines that the cumulative use time of the battery does not meet the standard, and determines to use the first preset value adjustment coefficient to adjust the preset value of the charging time of each power interval; the second preset value adjustment mode satisfies that the cumulative use time of the battery is greater than 300h and less than or equal to 500h; the first preset value adjustment coefficient is set to 1.1, and after adjustment by the first preset value adjustment coefficient, the preset value of the first power interval is adjusted to 16.5min, the preset value of the second power interval is adjusted to 5.5min, and the preset value of the third power interval is adjusted to 3.3min;
[0064] The third preset value adjustment method is that the central control module determines that the cumulative usage time of the battery does not meet the standard, and determines to use the second preset value adjustment coefficient to adjust the preset value of the charging time of each power interval; the third preset value adjustment method satisfies that the cumulative usage time of the battery is greater than 500h; the second preset value adjustment coefficient is set to 1.2. After adjustment by the second preset value adjustment coefficient, the preset value of the first power interval is adjusted to 18min, the preset value of the second power interval is adjusted to 6min, and the preset value of the third power interval is adjusted to 3.6min.
[0065] Please continue reading Figures 1 to 4 As shown, when the central control module completes the adjustment method for the battery, if the charging time for each power interval in the time-power variation curve is still higher than the preset value of the charging time for the interval, it is determined that the battery is aged, and the central control module uniformly sets the preset charging current for each power interval to 45mA.
[0066] Please continue reading Figures 1 to 4 As shown, when the central control module determines that the accumulated charging time of the battery meets the third strategy determination method, a power adjustment method for the battery charging power is provided based on the difference between the charging time and the preset charging time standard, wherein:
[0067] The first charging power adjustment mode is that the central control module determines that the difference between the battery charging time and the preset charging time standard meets the preset difference standard, and determines to charge the battery with the preset charging power; the first charging power adjustment mode satisfies that the difference between the battery charging time and the preset charging time standard is less than or equal to 20s, the preset charging time standard is the preset value of the charging time in the third power interval, and the preset charging power is 50W;
[0068] The second charging power adjustment mode is that the central control module preliminarily determines that the difference between the battery charging time and the preset charging time standard does not meet the preset difference standard, and determines to use the first charging power adjustment coefficient to adjust the preset charging power; the second charging power adjustment mode satisfies that the difference between the battery charging time and the preset charging time standard is greater than 20s and less than or equal to 60s; the first charging power adjustment coefficient is set to 0.95, and the charging power is adjusted to 47.5W after adjustment by the first charging power adjustment coefficient;
[0069] The third charging power adjustment method is that the central control module determines that the difference between the battery charging time and the preset charging time standard does not meet the preset difference standard, and determines to adopt the second charging power adjustment coefficient to adjust the preset charging power; the third charging power adjustment method satisfies that the difference between the battery charging time and the preset charging time standard is greater than 60s; the second charging power adjustment coefficient is set to 0.9, and the charging power is adjusted to 45W after adjustment by the second charging power adjustment coefficient.
[0070] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.
[0071] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A battery life optimization system, characterized in that: include: A power monitoring module, which is connected to the battery to obtain the battery power data; A central control module, which is connected to the power monitoring module and is used to process and analyze the battery power data obtained by the power monitoring module, and to determine a charging strategy for the battery; A regulating module connected to the central control module, configured to perform a heat dissipation operation on the battery based on the results of processing and analysis by the central control module and the heat dissipation device inside the central control module, or to adjust the charging current, or to send a notification of changing the battery charging strategy; The central control module is used to determine a charging strategy for the battery based on the power in the battery acquired by the power monitoring module, including: determining a charging current based on a time-capacity variation curve when it is preliminarily determined that the power in the battery does not meet a preset standard, entering a trickle charging mode when it is determined that the power in the battery does not meet the preset standard, and determining whether to change a charging strategy based on the power variation curve after charging is completed; The central control module is used to obtain a time-electricity variation curve of the battery when it is preliminarily determined that the electric quantity in the battery does not meet the preset standard, and to determine a charging current for the battery based on an average value of a derivative of the time-electricity variation curve; The central control module is used to determine the charging strategy of the battery based on the power in the battery obtained by the power monitoring module, wherein: The first determination method is that the central control module determines that the percentage of the remaining power in the battery meets the preset power standard, and determines to use the preset charging current for charging; the first determination method satisfies that the percentage of the remaining power in the battery is less than or equal to the first preset power percentage, and the first preset power percentage is set to 80%; the preset charging current is set to 40mA, and the percentage of the remaining power = the remaining power / the full power of the battery; The second determination method is that the central control module preliminarily determines that the percentage of the remaining power in the battery does not meet the preset power standard, and the central control module determines the charging current based on the power change curve; the second determination method satisfies that the percentage of the remaining power in the battery is greater than the first preset power percentage and less than or equal to the second preset power percentage, and the second preset power percentage is set to 95%; The third determination method is that the central control module determines that the percentage of the remaining power in the battery does not meet the preset power standard, and the central control module sends a notification to the adjustment module, and the battery enters the trickle charging mode; the third determination method satisfies that the percentage of the remaining power in the battery is greater than the second preset power percentage; The central control module counts the accumulated charging time of the battery when determining that the remaining power in the battery satisfies the third determination method, and sets a determination method for the battery charging strategy based on the charging time, wherein: The first strategy determination method is that the central control module determines that the cumulative charging time of the battery is qualified and determines to charge the battery with the current charging current; the first strategy determination method satisfies that the cumulative charging time of the battery is less than or equal to 50h; The second strategy determination method is that the central control module preliminarily determines that the cumulative charging time of the battery is unqualified, and the central control module determines an improvement plan for the charging strategy based on the distribution of the time-power change curve; the second strategy determination method satisfies that the cumulative charging time of the battery is greater than 50h and less than or equal to 300h; The third strategy determination method is that the central control module determines that the cumulative charging time of the battery is unqualified, and determines that the current charging strategy is unqualified. The central control module redetermines the charging power based on the difference between the charging time and the preset time standard; the third strategy determination method satisfies that the cumulative charging time of the battery is greater than 300h.
2. The battery life optimization system according to claim 1, characterized in that: The central control module is used to count the charging time of the battery, and to determine that the current charging strategy is qualified when it is determined that the charging time meets the preset time standard, or to determine an improvement plan for the charging strategy based on the distribution of the time-electricity change curve when it is preliminarily determined that the charging time does not meet the preset time standard; the central control module is also used to redetermine the charging power based on the difference between the charging time and the preset time standard when it is determined that the charging time does not meet the preset time standard.
3. The battery life optimization system according to claim 2, characterized in that: The central control module is used to determine an improved solution of the charging strategy based on whether the charging time to complete each power interval in the time-power variation curve is higher than the preset value of the charging time in the interval when it is preliminarily determined that the charging time does not meet the preset time standard; The central control module is also used to determine the operating power of the heat dissipation device based on the temperature change during the charging process, or to determine the charging current based on the difference between the charging time and the preset time standard, or to determine the charging time of the corresponding power interval based on the cumulative usage time of the battery.
4. The battery life optimization system according to claim 3, characterized in that: The central control module is provided with several methods for determining the operating power of the heat dissipation device based on the temperature change during the charging process, and the operating power of the heat dissipation device obtained under each determination method is different.
5. The battery life optimization system according to claim 4, characterized in that: The central control module is provided with a plurality of current regulation modes for the charging current based on the difference between the charging time and the preset time standard, and the regulation range of the charging current under each current regulation mode is different.
6. The battery life optimization system according to claim 5, characterized in that: The central control module is provided with a plurality of preset value adjustment modes for preset values of charging time in each power interval based on the accumulated usage time of the battery, and the adjustment range of the preset value of charging time in each power interval under each preset value adjustment mode is different.
7. The battery life optimization system according to claim 6, characterized in that: The central control module is used to determine battery aging when the preset value of the charging time for each power interval is completed and the charging time for each power interval in the time-power variation curve is measured to be still higher than the preset value of the charging time for the interval, and the central control module re-determines the preset charging current for each power interval.
8. The battery life optimization system according to claim 7, characterized in that: The central control module is used to determine that a plurality of power adjustment modes for battery charging power are provided based on the difference between the charging time and the preset time standard when it is determined that the charging time does not meet the preset charging time standard, and the adjustment range of the battery charging power under each power adjustment mode is different.
Citation Information
Patent Citations
Method for optimizing service life of battery
CN114041253A
Charging control system and method based on electric vehicle
CN113507159A
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