An adaptive charging method, charger and storage medium

Abstract

The present invention relates to the field of new energy technology, in particular to the field of battery technology, and specifically to an adaptive charging method, a charger and a storage medium. According to the adaptive charging method of the present application, the state parameters of the battery are obtained in real time, the charging conditions satisfied by the battery are determined according to the state parameters, and then different preset charging methods are selected in real time to charge the battery according to the charging conditions satisfied by the battery. In this way, the best suitable charging method can be selected according to the different state parameters of the battery to charge the battery, thereby improving the adaptability of the battery when charging.

Description

Technical Field

[0001] The present invention relates to the field of new energy technology, in particular to the field of battery technology, and specifically to an adaptive charging method, a charger and a storage medium. Background Art

[0002] As the application of new energy becomes wider and wider, battery fires or explosions have occurred frequently in recent years, raising widespread doubts about the safety of lithium batteries. In particular, more and more communities are implementing the "ban on charging electric motorcycles" policy, casting a shadow on consumers. Studies have shown that the vast majority of safety issues related to lithium batteries ultimately stem from the chemical reaction between the positive and negative electrode materials and the electrolyte at higher temperatures under charging, that is, the relationship between charging and temperature. As the application of new energy becomes more and more in-depth, a charging method that is both safe and fast can meet the needs of consumers.

[0003] As an important member of cutting-edge technology, mobile robots are generally powered by multiple battery packs connected in series or in parallel. There are also many types of battery cells, such as ternary lithium, lithium iron phosphate, lithium cobalt oxide, solid lithium, etc. Due to the different battery cells and different series and parallel combinations, the charging voltage and current are also different. Therefore, after developing a certain battery pack, a corresponding charger is required for charging. In other words, a battery pack requires a specific charger, and other chargers cannot adapt to charge it safely. Therefore, the existing charging methods have poor adaptability. Summary of the invention

[0004] The main technical problem solved by the present invention is that the existing battery charging method has poor adaptability.

[0005] An adaptive charging method, characterized by comprising:

[0006] Acquiring status parameters of the battery in real time;

[0007] Determining a charging condition satisfied by the battery according to the state parameter;

[0008] Selecting different charging methods in real time to charge the battery according to charging conditions satisfied by the battery;

[0009] The charging mode includes at least a first charging mode and a second charging mode, and the first charging mode and the second charging mode correspond to different charging currents respectively.

[0010] In one embodiment, the state parameters of the battery include the current output voltage value and temperature value of the battery;

[0011] The charging condition includes a first charging condition and a second charging condition;

[0012] The step of selecting different charging modes in real time to charge the battery according to the charging conditions satisfied by the battery includes:

[0013] If the battery status parameter meets the first charging condition, select the corresponding first charging method to charge the battery, otherwise select the second charging method to charge the battery; if the battery status parameter meets the second charging condition, select the corresponding second charging method to charge the battery, otherwise select the first charging method to charge the battery.

[0014] In one embodiment, when the first charging method is used to charge the battery, the charging current used is a first charging current; when the second charging method is used to charge the battery, the charging current used is a second charging current;

[0015] The first charging current is smaller than the second charging current.

[0016] In one embodiment, when the battery is charged using the first charging method, it is also determined in real time whether the current state parameters of the battery meet the preset charging termination conditions. If so, charging is terminated; otherwise, the battery continues to be charged using the first charging method.

[0017] In one embodiment, determining whether the battery satisfies the first charging condition includes: determining whether the current battery satisfies any one of the following three conditions, if so, determining that the battery satisfies the first charging condition, if otherwise, not satisfying;

[0018] Condition 1: the current output voltage of the battery is greater than the first voltage value;

[0019] Condition 2: the current battery temperature is higher than the first temperature;

[0020] Condition three: the current battery temperature is lower than the second temperature.

[0021] In one embodiment, determining whether the battery satisfies the second charging condition includes: determining whether the current temperature of the battery is within a preset first temperature range, and if so, determining that the battery satisfies the second charging condition, and otherwise, not satisfying the second charging condition.

[0022] In one embodiment, the determination of whether the current state parameters of the battery meet the preset charging termination conditions includes: determining whether the current output voltage of the battery is greater than a second voltage value and whether the current charging current is less than a third charging current, and if so, determining that the current state parameters of the battery meet the preset charging termination conditions; the third charging current is less than the first charging current.

[0023] In one embodiment, before charging the battery, basic parameter information of the currently connected battery is obtained through a charger, and a maximum charging voltage value and a maximum charging current value of the battery are determined according to the basic parameter information;

[0024] The basic parameter information includes: the model of the battery, the type of the battery, the number of battery cells connected in series and / or in parallel, the rated charging current of the battery, and the rated charging voltage of the battery.

[0025] In one embodiment, the selecting the corresponding first charging mode to charge the battery includes: determining the first charging current according to the current output voltage value and temperature value of the battery, the maximum charging voltage value and the maximum charging current value;

[0026] The selecting the corresponding second charging mode to charge the battery comprises: determining the second charging current according to the current output voltage value and temperature value of the battery, the maximum charging voltage value and the maximum charging current value;

[0027] The method also includes: determining the third charging current according to the current output voltage value and temperature value of the battery, the maximum charging voltage value and the maximum charging current value.

[0028] A charger for adaptive charging includes a memory, a processor, and a computer program computer-readable instructions stored in the memory and executable on the processor, wherein the processor implements the following steps when executing the computer-readable instructions:

[0029] When the battery is charging, the state parameters of the battery are obtained in real time;

[0030] Determining a charging condition satisfied by the battery according to the state parameter;

[0031] Select different charging methods to charge the battery in real time according to the charging conditions met by the battery;

[0032] The charging mode includes at least a first charging mode and a second charging mode, and the first charging mode and the second charging mode correspond to different charging currents respectively.

[0033] In one embodiment, the state parameters of the battery include the current output voltage value and temperature value of the battery;

[0034] The charging condition includes at least a first charging condition and a second charging condition;

[0035] The step of selecting different charging modes in real time to charge the battery according to the charging conditions satisfied by the battery includes:

[0036] If the battery status parameters meet the first charging condition, select the corresponding first charging method to charge the battery, otherwise select the second charging method to charge the battery; if the battery status parameters meet the second charging condition, select the corresponding second charging method to charge the battery, otherwise select the first charging method to charge the battery.

[0037] In one embodiment, when the first charging method is used to charge the battery, the charging current used is a first charging current; when the second charging method is used to charge the battery, the charging current used is a second charging current; and the first charging current is smaller than the second charging current.

[0038] In one embodiment, when the battery is charged using the first charging method, it is also determined in real time whether the current state parameters of the battery meet the preset charging termination conditions. If so, charging is terminated; otherwise, the battery continues to be charged using the first charging method.

[0039] A computer-readable storage medium includes a program, wherein the program can be executed by a processor to implement the method as described above.

[0040] According to the adaptive charging method of the above embodiment, the state parameters of the battery are obtained in real time, the charging conditions satisfied by the battery are determined according to the state parameters, and then different preset charging methods are selected in real time to charge the battery according to the charging conditions satisfied by the battery. In this way, the best suitable charging method can be selected to charge the battery according to the different state parameters of the battery, thereby improving the adaptability of the battery during charging. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 A schematic diagram of an adaptive charging method according to an embodiment of the present application;

[0042] Figure 2 This is a flowchart of the adaptive charging method according to an embodiment of the present application;

[0043] Figure 3 This is a structural block diagram of a charger according to an embodiment of the present application. DETAILED DESCRIPTION

[0044] The present invention is further described in detail below by specific embodiments in conjunction with the accompanying drawings. Wherein similar elements in different embodiments adopt associated similar element numbers. In the following embodiments, many detailed descriptions are for making the present application better understood. However, those skilled in the art can easily recognize that some features can be omitted in different situations, or can be replaced by other elements, materials, methods. In some cases, some operations related to the present application are not shown or described in the specification, this is to avoid the core part of the present application being overwhelmed by too much description, and for those skilled in the art, it is not necessary to describe these related operations in detail, and they can fully understand the related operations according to the description in the specification and the general technical knowledge in the art.

[0045] In addition, the features, operations or characteristics described in the specification can be combined in any appropriate manner to form various implementations. At the same time, the steps or actions in the method description can also be interchanged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the various sequences in the specification and the drawings are only for the purpose of clearly describing a certain embodiment and are not meant to be a required sequence, unless otherwise specified that a certain sequence must be followed.

[0046] The serial numbers assigned to the components in this article, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning.

[0047] This embodiment provides an adaptive charging method, which can determine an adaptive charging strategy to charge the battery according to the current temperature value and output voltage value of the battery, thereby improving the adaptability of the charger, reducing the development cost, and improving the charging efficiency and saving the charging time; and adopting a small current charging when the battery is almost fully charged, thereby solving the technical problem of floating charging of the battery.

[0048] The inventive concept of the present application is described in detail below.

[0049] The full-charge voltage, maximum charging voltage, and maximum charging current of batteries with different numbers of series connections are different, and the current charge level and temperature of the batteries are different, so the adapted charging voltage and charging current are also different.

[0050] For example, the relationship between the full-charge voltage and the number of series stages of several common battery cells is shown in the following table:

[0051]

[0052] As can be seen from the table above, if two cells with different materials are used at the same time, their full-charge voltage will be different. If the charger voltage is too high, it will cause the BMS (battery management system) to overcharge protection; if the voltage is too low, the battery will not be fully charged.

[0053] The relationship between the maximum charging current and the number of parallel stages for different cell capacities is shown in the following table:

[0054]

[0055] As can be seen from the table above, if the capacity of the same battery cell and the number of series connections that make up the battery pack are different, the charging current will be different. If the charger's current limit is too small, the charging time will be longer; if the current is too large, the BMS (battery management system) will easily charge overcurrent protection or the battery cell temperature will be too high and cause overtemperature protection.

[0056] In addition, the charging current of lithium batteries at low temperatures is often lower than the charging current at normal temperatures. The usual practice is to design a more complex circuit at the BMS end of the battery to make it in a small current charging state at low temperatures, or to pulse charge the battery to reduce the average charging current to a lower level.

[0057] In order to adapt to batteries with different series and parallel levels, the present application proposes an adaptive charging method, the purpose of which is that the charger can identify different types of batteries and different states of the batteries to adapt and output multiple groups of different charging currents, thereby reducing the repetitive development of the charger and saving R&D and production costs. In addition, in order to improve the charging efficiency and protect the battery charging from damage, the present application takes into account that when charging the battery, the charger needs to output an adaptive charging current according to the current power and temperature of the battery, so as to ensure that the appropriate current is used for charging at the appropriate temperature. For example, when the charger obtains the voltage and temperature information of the battery, it can solve the problems of low-temperature current limiting charging, normal temperature fast charging, high temperature current limiting charging, and long-term floating charging when it is about to be fully charged. If the BMS of the battery pack has similar functions, the charger solves the problem from the source, which is better than the passive solution of the BMS board, and can achieve double protection with the BMS. Among them, low-temperature current limiting, high-temperature current limiting and floating charging are to solve the problem of charging safety, and normal temperature fast charging is to shorten the charging time and improve the user experience.

[0058] In order to obtain the basic parameter information of the battery and the current output voltage and temperature value, it is necessary to communicate with the battery pack, which can be achieved in the following two ways. Conventional chargers generally only have two terminals, the positive output and the negative output. If you want to add communication with the battery pack to the charger, one way is to add communication signals to the positive and negative outputs. The advantage of this method is that it reduces the number of terminals, but the disadvantage is that the design is more complicated and the cost is higher. Another low-cost and mature solution is to add a communication port, such as a 485 communication port, which only has 2 more communication lines than the conventional solution. Through this communication port, you can get the basic information of the battery pack in time, such as the battery model, temperature, and current voltage of the battery pack.

[0059] Embodiment 1

[0060] This embodiment provides an adaptive charging method. Figure 1 , which includes:

[0061] Step 101: Obtain battery status parameters in real time.

[0062] Step 102: Determine the charging condition satisfied by the battery according to the state parameter.

[0063] Step 103: Select different charging methods in real time to charge the battery according to the charging conditions satisfied by the battery. The charging methods of this embodiment include at least a first charging method and a second charging method, and the first charging method and the second charging method correspond to different charging currents, respectively.

[0064] The adaptive charging method of this embodiment can select a suitable charging method (including charging current) to charge the battery, thereby improving the charging efficiency of the battery. This embodiment presets two charging methods, namely the first charging method and the second charging method. The two charging methods can be understood as two charging strategies. The charging currents corresponding to the two charging methods are different, that is, an adaptive charging method is selected to charge the battery under different environmental conditions. For example, when the battery is at a high or low temperature, it is not suitable to charge the battery with a large current, so the first charging method is used to charge the battery. If the battery does not currently meet the charging conditions corresponding to the first charging method, it indicates that the battery temperature can be within a suitable charging temperature range, and the current power of the battery is small, then the second charging method can be used to charge the battery, so that the battery is quickly filled and the charging efficiency is improved.

[0065] Among them, in step 101, real-time acquisition of battery status parameters needs to be performed in real time throughout the entire charging process. For example, this step needs to be performed first before charging (i.e. when the charger is connected), and this step can also be performed later in the charging process in order to adjust the charging strategy in real time.

[0066] Among them, through multiple tests, technicians confirmed that the factors that have the greatest impact on battery charging are the battery power and the temperature of the current environment. However, since the power of some batteries is not easy to obtain, the battery status parameters obtained in this embodiment include the battery's current output voltage value and temperature value. The output voltage value can represent the battery power.

[0067] Among them, the preset charging conditions in this embodiment include a first charging condition and a second charging condition, and the first charging condition and the second charging condition correspond to a first charging mode and a second charging mode respectively. When charging the battery, the charging conditions satisfied by the current state parameters of the battery are determined in real time, and different charging modes are selected in real time to charge the battery according to the charging conditions satisfied by the battery. For details, please refer to Figure 2 If the battery state parameter meets the first charging condition, the corresponding first charging method is selected to charge the battery, otherwise the second charging method is selected to charge the battery; if the battery state parameter meets the second charging condition, the corresponding second charging method is selected to charge the battery, otherwise the first charging method is selected to charge the battery. In other words, when charging the battery, the selected charging method switches between the first charging method and the second charging method according to the current state parameters of the battery.

[0068] In this embodiment, when the first charging method is used to charge the battery, the charging current used is the first charging current; when the second charging method is used to charge the battery, the charging current used is the second charging current, and the first charging current is less than the second charging current. The two charging methods in this embodiment can be understood as two charging strategies.

[0069] When the first charging method is used to charge the battery, the current temperature value and output voltage value of the battery are also obtained in real time to determine whether the battery meets the preset second charging condition. If so, the battery is switched to the second charging method. If the battery is charged using the first charging method at the beginning, the battery temperature gradually rises during the charging process. When the battery temperature rises to a suitable temperature, it is determined that the battery meets the preset second charging condition, and the battery is switched to the preset second charging method. This can also make the battery quickly full and improve the charging efficiency.

[0070] Among them, in one embodiment, when the second charging method is used to charge the battery, the current temperature value and output voltage value of the battery are also obtained in real time to determine whether the battery meets the preset first charging condition. If so, the battery is switched to the preset first charging method to charge the battery. For example, at the beginning of charging, if it is determined that the current temperature of the battery is appropriate and the battery output voltage is small (i.e., the remaining power is small), the second charging method is used to charge the battery so that the battery is quickly filled; when the battery is almost saturated, the battery temperature rises or the voltage also rises, then the battery may not be suitable for high-current charging at this time, then it is determined that the battery meets the preset first charging condition, and then the first charging current is used to fill the battery.

[0071] Among them, when the battery is charged by the first charging method, the current output voltage value and the current charging current value of the battery are also obtained in real time, and it is determined whether the preset charging termination condition is met based on the current output voltage value and the current charging current value. If so, charging is terminated, otherwise, the preset first charging method is continued to be used to charge the battery.

[0072] Since the two charging modes of this embodiment can be understood as two charging strategies, and the first charging current is less than the second charging current. In order to facilitate the understanding of those skilled in the art, the first charging mode is understood as a small current charging strategy, and the second charging mode is understood as a large current charging strategy, and the charging current when the battery is charged using the large current charging strategy is greater than the current when the battery is charged using the small current charging strategy. The charging process is described below from the perspective of the small current charging strategy and the large current charging strategy to facilitate the understanding of those skilled in the art.

[0073] When charging the battery with a small current charging strategy, the current temperature and output voltage of the battery are also obtained in real time to determine whether the battery meets the preset large current charging conditions. If so, the battery is switched to the preset large current charging strategy. If the battery is charged with a small current charging strategy at the beginning, the battery temperature gradually rises during the charging process. When the battery temperature rises to a suitable temperature, it is determined that the battery meets the preset large current charging conditions, and the battery is switched to the preset large current charging strategy. This can also make the battery fully charged quickly and improve charging efficiency.

[0074] Among them, in one embodiment, when the high-current charging strategy is used to charge the battery, the current temperature value and output voltage value of the battery are also obtained in real time to determine whether the battery meets the preset low-current charging conditions. If so, the battery is switched to the preset low-current charging strategy to charge the battery. For example, at the beginning of charging, if it is determined that the current temperature of the battery is appropriate and the battery output voltage is small (i.e., the remaining power is small), the high-current charging strategy is used to charge the battery so that the battery is quickly filled; when the battery is almost saturated, the battery temperature rises or the voltage also rises, then the battery may not be suitable for high-current charging at this time, then it is determined that the battery meets the preset low-current charging conditions, and then the low current is used to fill the battery.

[0075] Among them, when the battery is charged using a small current charging strategy, the current output voltage value of the battery and the current charging current value are also obtained in real time, and it is determined whether the preset charging termination conditions are met based on the current output voltage value and the current charging current value. If so, charging is terminated, otherwise, the preset small current charging strategy continues to be used to charge the battery.

[0076] In one embodiment, before charging the battery, the charger obtains basic parameter information of the currently connected battery, and determines a maximum charging voltage value and a maximum charging current value of the battery according to the basic parameter information.

[0077] The basic parameter information includes at least: the battery model, battery type, number of battery cells connected in series and / or in parallel, the rated charging current of the battery, and the rated charging voltage of the battery. The MCU (microprocessing unit) in the charger communicates with the battery, obtains the basic parameter information of the battery, and can determine the maximum charging voltage and maximum charging current value of this charging.

[0078] The method for determining whether the battery meets the first charging condition in this embodiment is specifically as follows: determining whether the battery meets any one of the following three conditions, then determining that the battery meets the first charging condition, otherwise, it does not meet the first charging condition.

[0079] Condition 1: the current output voltage of the battery is greater than the first voltage; wherein the first voltage may be preset by the user or determined by the system according to a preset determination method, for example, the first voltage is set to 0.8 times the maximum charging voltage value.

[0080] Condition 2: the current battery temperature is higher than the first temperature, for example, the first temperature is set to 20°C.

[0081] Condition three: the current battery temperature is lower than the second temperature, for example, the second temperature is set to 10°C.

[0082] When the battery is at high or low temperature, it is not suitable for high-temperature charging, so the first charging method is used to charge the battery. If the battery does not currently meet the first charging condition, it means that the battery temperature can be within the appropriate charging temperature range, and the battery currently has less power, then the second charging method can be used to charge the battery, so that the battery is quickly fully charged and the charging efficiency is improved.

[0083] The specific method of judging whether the battery meets the second charging condition in this embodiment is: judging whether the current temperature of the battery is in a preset first temperature range, if so, it meets the second charging condition, for example, the first temperature range is set to 20°C-30°C.

[0084] In this embodiment, the method for determining whether the current state parameters of the battery meet the preset charging termination condition is as follows: determining whether the current output voltage of the battery is greater than the second voltage value and whether the current charging current is less than the third charging current. If so, it is determined that the current state parameters of the battery meet the preset charging termination condition; the third charging current is less than the first charging current. The second voltage value is close to or equal to the rated output voltage of the battery, and the third charging current is generally less than 1A, for example, the third charging current value is set to 500mA.

[0085] The large current and small current mentioned in this embodiment are relative concepts. A large current means that the current is larger during charging compared to a small current. Similarly, a small current means that the charging current is smaller compared to a small current.

[0086] It should be noted that the first charging current, the second charging current and the third charging current of the present embodiment can be set to a fixed value or a floating value. In some usage scenarios, if the ambient temperature variation range is not large and the types of batteries that need to be adapted are relatively small, the first charging current, the second charging current and the third charging current can all be set to a suitable fixed value. However, in order to have better adaptability and higher charging efficiency, the first charging current, the second charging current and the third charging current in the present embodiment are all floating values. Specifically, a preset algorithm is used to determine the first charging current, the second charging current and the third charging current according to the acquired battery status parameters.

[0087] In this embodiment, charging the battery using a preset first charging method includes: determining a first charging current according to the current output voltage value and temperature value of the battery, the maximum charging voltage value and the maximum charging current value, and charging the battery using the first charging current. For example, determining the first charging current = (0.3-0.5) * maximum charging current value. Specifically, the setting of the first charging current value can be specifically set by the user according to different battery types.

[0088] In this embodiment, the use of a preset high-current charging strategy to charge the battery includes: determining a second charging current value according to the current output voltage value and temperature value of the battery, the maximum charging voltage value and the maximum charging current value, and using the second charging current value to charge the battery. For example, the first charging current value = (0.7-0.8) * maximum charging current value.

[0089] Embodiment 2

[0090] This embodiment takes a 10-series-5-parallel battery pack as an example, and the basic information of the battery cell is: 18650 battery cell, ternary lithium, capacity 2600mAh, full charge 4.2V, charging temperature range -5℃ to 45℃; the maximum charging current is 520mA at -5℃ to 10℃, and 1.3A above 10℃.

[0091] Basic information of the 10-series-5-parallel battery pack: capacity 13Ah, charging voltage 42V, maximum charging current 6.5A. When charged to above 41V and the charging current is less than 500mA, the BMS determines that the battery is fully charged and turns off charging.

[0092] When the adaptive charging method of the present application is used to charge the battery pack of the present embodiment, the specific process includes:

[0093] a. After the battery pack is plugged into the charger and the battery pack communicates successfully with the charger, the charger obtains the basic parameter information of the battery pack. The MCU in the charger determines the maximum charging voltage value of 42 and the maximum charging current value of 6.5A based on the basic parameter information of the battery pack. Therefore, during the charging process, the output voltage needs to be adjusted to 42V and the charging current is limited to 6.5A.

[0094] b. Obtain the current output voltage and temperature of the battery. For example, if the current battery voltage is 25V / 5°C, the temperature is relatively low at this time. The MCU determines that the battery meets the preset first charging condition based on the obtained output voltage and temperature of the battery. At this time, the MCU corrects the charging current to 2.6A and opens the output channel to charge the battery.

[0095] c. After charging for 15 minutes, the battery voltage is about 25.2V and the battery temperature rises to 10°C. At this time, the battery temperature rises and the MCU determines that the battery meets the preset second charging condition. At this time, the charger's MCU adjusts the output current to 6.5A, and the battery enters the high-current fast charging stage.

[0096] d. After charging for 1.5 hours, the battery voltage is 41.8V. The battery output voltage is large, indicating that it is about to be fully charged. The MCU determines that the battery meets the preset first charging condition and gradually reduces the charging current to 500mA.

[0097] e. At this time, the battery BMS board has reached a fully charged state (SOC 100%), and determines that the battery meets the preset charging end conditions. The charger's MCU shuts off the output and charging ends.

[0098] Embodiment three:

[0099] This embodiment provides a charger with an adaptive charging function, such as Figure 3 , which includes: a memory 401 and a processor 402.

[0100] The memory 401 is used to store programs, and the processor 402 is used to implement the adaptive charging method provided in Embodiment 1 by executing the programs stored in the memory. Specifically, when the charger is connected to the battery, the charger reads the basic parameter information and state parameters of the battery through data, determines the mode of the battery according to the basic parameter information and the state parameters, and outputs an adaptive charging current to charge the battery.

[0101] Embodiment 4:

[0102] This embodiment provides a computer-readable storage medium, which includes a program, and the program can be executed by a processor to implement the adaptive charging method provided in the first embodiment.

[0103] Those skilled in the art will appreciate that all or part of the functions of the various methods in the above-mentioned embodiments can be implemented by hardware or by computer programs. When all or part of the functions in the above-mentioned embodiments are implemented by computer programs, the program can be stored in a computer-readable storage medium, and the storage medium can include: read-only memory, random access memory, disk, optical disk, hard disk, etc., and the program is executed by a computer to implement the above-mentioned functions. For example, the program is stored in the memory of the device, and when the program in the memory is executed by the processor, all or part of the above-mentioned functions can be implemented. In addition, when all or part of the functions in the above-mentioned embodiments are implemented by computer programs, the program can also be stored in a storage medium such as a server, another computer, disk, optical disk, flash disk or mobile hard disk, and can be downloaded or copied and saved in the memory of the local device, or the system of the local device is updated, and when the program in the memory is executed by the processor, all or part of the functions in the above-mentioned embodiments can be implemented.

[0104] The above specific examples are used to illustrate the present invention, which is only used to help understand the present invention and is not intended to limit the present invention. For those skilled in the art, according to the concept of the present invention, some simple deductions, modifications or substitutions can be made.

Claims

1. An adaptive charging method, characterized in that: include: Obtain basic parameter information of the currently connected battery, and determine the maximum charging voltage and maximum charging current of the battery according to the basic parameter information; wherein the basic parameter information includes: the model of the battery, the type of the battery, the number of battery cells connected in series and / or in parallel, the rated charging current of the battery, and the rated charging voltage of the battery; Acquire the state parameters of the battery in real time; wherein the state parameters of the battery include the current output voltage value and temperature value of the battery; Determining a charging condition satisfied by the battery according to the state parameter; Selecting different charging methods in real time to charge the battery according to charging conditions satisfied by the battery; wherein the charging methods include a first charging method and a second charging method, the first charging method and the second charging method correspond to different charging currents respectively; the charging current is determined by the maximum charging voltage value and the maximum charging current value of the battery; The step of selecting different charging modes in real time to charge the battery according to the charging conditions satisfied by the battery includes: If the state parameter of the battery meets the first charging condition, the corresponding first charging method is selected to charge the battery, otherwise the second charging method is selected to charge the battery; if the state parameter of the battery meets the second charging condition, the corresponding second charging method is selected to charge the battery, otherwise the first charging method is selected to charge the battery; When the battery is charged by the first charging method, it is also determined in real time whether the current state parameters of the battery meet the preset charging termination conditions. If so, charging is terminated; otherwise, the battery continues to be charged by the first charging method.

2. The adaptive charging method according to claim 1, characterized in that: When the first charging method is used to charge the battery, the charging current used is a first charging current; when the second charging method is used to charge the battery, the charging current used is a second charging current; The first charging current is smaller than the second charging current.

3. The adaptive charging method according to claim 1, characterized in that: Determining whether the battery satisfies the first charging condition includes: determining whether the current battery satisfies any one of the following three conditions, if so, determining that the battery satisfies the first charging condition, otherwise, not satisfying; Condition 1: the current output voltage of the battery is greater than the first voltage value; Condition 2: the current battery temperature is higher than the first temperature; Condition three: the current battery temperature is lower than the second temperature.

4. The adaptive charging method according to claim 1, characterized in that: Determining whether the battery meets the second charging condition includes: determining whether the current temperature of the battery is within a preset first temperature range, and if so, determining that the battery meets the second charging condition, and otherwise, not meeting the second charging condition.

5. The adaptive charging method according to claim 2, characterized in that: The determining whether the current state parameters of the battery meet the preset charging termination conditions includes: determining whether the current output voltage of the battery is greater than the second voltage value and whether the current charging current is less than the third charging current, and if so, determining that the current state parameters of the battery meet the preset charging termination conditions; the third charging current is less than the first charging current.

6. The adaptive charging method according to claim 5, characterized in that: The selecting the corresponding first charging mode to charge the battery comprises: determining the first charging current according to the current output voltage value and temperature value of the battery, the maximum charging voltage value and the maximum charging current value; The selecting the corresponding second charging mode to charge the battery comprises: determining the second charging current according to the current output voltage value and temperature value of the battery, the maximum charging voltage value and the maximum charging current value; The method also includes: determining the third charging current according to the current output voltage value and temperature value of the battery, the maximum charging voltage value and the maximum charging current value.

7. A charger for adaptive charging, comprising a memory, a processor, and a computer program computer-readable instruction stored in the memory and executable on the processor, characterized in that: When the processor executes the computer-readable instructions, the following steps are implemented: Obtain basic parameter information of the currently connected battery, and determine the maximum charging voltage and maximum charging current of the battery according to the basic parameter information; wherein the basic parameter information includes: the model of the battery, the type of the battery, the number of battery cells connected in series and / or in parallel, the rated charging current of the battery, and the rated charging voltage of the battery; When the battery is charging, the state parameters of the battery are obtained in real time; wherein the state parameters of the battery include the current output voltage value and temperature value of the battery; Determining a charging condition satisfied by the battery according to the state parameter; Selecting different charging modes in real time to charge the battery according to charging conditions satisfied by the battery; wherein the charging modes include at least a first charging mode and a second charging mode, the first charging mode and the second charging mode correspond to different charging currents respectively; the charging current is determined by the maximum charging voltage value and the maximum charging current value of the battery; The step of selecting different charging modes in real time to charge the battery according to the charging conditions satisfied by the battery includes: If the state parameter of the battery meets the first charging condition, the corresponding first charging method is selected to charge the battery, otherwise the second charging method is selected to charge the battery; if the state parameter of the battery meets the second charging condition, the corresponding second charging method is selected to charge the battery, otherwise the first charging method is selected to charge the battery; When the battery is charged by the first charging method, it is also determined in real time whether the current state parameters of the battery meet the preset charging termination conditions. If so, charging is terminated; otherwise, the battery continues to be charged by the first charging method.

8. The adaptive charging charger according to claim 7, characterized in that: When the first charging method is used to charge the battery, the charging current used is a first charging current; when the second charging method is used to charge the battery, the charging current used is a second charging current; the first charging current is smaller than the second charging current.

9. A computer-readable storage medium, characterized in that: The method comprises a program which can be executed by a processor to implement the method according to any one of claims 1 to 6.

Images