CN116533806A - Battery charging method, device, system and medium based on charging pile - Google Patents

Abstract

The application relates to the technical field of battery charging, in particular to a battery charging method, device, system and medium based on a charging pile, wherein the method comprises the following steps: constant-current charging is carried out on the battery to be charged according to a preset charging current; acquiring charging data in real time; detecting whether the actual voltage of the battery is greater than a first preset voltage threshold; when the actual voltage of the battery is detected to be larger than a first preset voltage threshold, constant-voltage charging is carried out on the battery to be charged based on the first output voltage of the charging pile, and whether the charging current of the charging pile is smaller than the preset charging current threshold is detected; charging the battery to be charged based on the second output voltage of the charging pile when the charging current of the charging pile is detected to be smaller than the preset charging current threshold value, and detecting whether the actual electric quantity of the battery to be charged is not smaller than the battery electric quantity threshold value; and stopping charging the battery to be charged when the actual electric quantity of the battery to be charged is detected to be not smaller than the battery electric quantity threshold value. The technical effect that this application had is improved the security that charges.

Description

Battery charging method, device, system and medium based on charging pile

technical field

The present application relates to the technical field of battery charging, in particular to a battery charging method, device, system and medium based on charging piles.

Background technique

With the development of electric vehicles, low-speed electric vehicles such as electric bicycles, electric motorcycles, and electric tricycles are becoming more and more popular. However, the mileage of low-speed electric vehicles is relatively short, so users need to frequently charge low-speed electric vehicles.

In related technologies, a single low-voltage direct current is used to charge low-speed electric vehicles, but the voltage and current of the battery to be charged are constantly changing during the charging process, and the use of a fixed single low-voltage direct current will increase the safety hazard of the battery to be charged. probability.

Contents of the invention

In order to improve charging safety, the present application provides a battery charging method, device, system and medium based on charging piles.

In the first aspect, the present application provides a battery charging method based on a charging pile, which adopts the following technical solution:

A battery charging method based on a charging pile, comprising:

When it is detected that the battery to be charged is connected to the charging pile, the battery to be charged is charged with a constant current according to the preset charging current; and the charging data is obtained in real time, wherein the charging data includes: the actual voltage of the battery to be charged, the actual voltage of the battery to be charged Electricity and charging current of the charging pile; detecting whether the actual voltage of the battery to be charged is greater than the first preset voltage threshold;

If it is detected that the actual voltage of the battery to be charged is greater than the first preset voltage threshold, the battery to be recharged is charged at a constant voltage based on the first output voltage of the charging pile, and whether the charging current of the charging pile is detected in real time is less than the preset charging current threshold;

If it is detected that the charging current of the charging pile is less than the preset charging current threshold, the battery to be recharged is charged based on the second output voltage of the charging pile, and it is detected in real time whether the actual power of the battery to be charged is not less than the preset battery power threshold; wherein, the The second output voltage is less than the first output voltage;

If it is detected that the actual power of the battery to be charged is not less than the preset battery power threshold, the charging of the battery to be charged is stopped.

By adopting the above technical solution, when the battery to be charged is charged, the battery to be charged is charged with a constant current based on the preset charging current to improve the charging efficiency of the battery to be charged; in the process of constant current charging, if the battery to be charged is detected If the actual voltage is greater than the first preset voltage threshold, polarization will occur inside the battery to be charged, and the probability of explosion of the battery to be charged will increase. Therefore, the first output voltage is used to charge the battery to be charged at a constant voltage to reduce the explosion of the battery to be charged. probability, improve the safety of the battery to be charged; in the process of constant voltage charging according to the first output voltage, if it is detected that the charging current of the charging pile is less than the preset charging current threshold, continuing to charge with the first output voltage will cause the battery to Abnormal heating, so use the second output voltage lower than the first output voltage to reduce the occurrence of abnormal heating of the battery inside the battery; when charging according to the second output voltage, if it is detected that the actual power of the battery to be charged is not less than the preset If the battery power threshold is set, it indicates that the charging of the battery to be charged is completed, so the charging can be stopped; it can be seen that the application adjusts the charging pile adaptively by detecting the actual voltage of the battery to be charged, the output current of the charging pile, and the actual power of the battery to be charged. The charging current and output voltage improve the safety of battery charging from multiple dimensions.

In a possible implementation manner, before the constant current charging of the battery to be charged according to the preset charging current, the method further includes:

Obtaining the initial voltage of the battery to be charged, wherein the initial voltage of the battery to be charged represents the voltage of the battery to be charged before being charged; judging whether the initial voltage of the battery to be charged is less than a second preset voltage threshold, wherein the second preset The voltage threshold is less than a first preset voltage threshold;

If the initial voltage of the battery to be charged is not less than the second preset voltage threshold, then perform charging the battery to be charged based on a preset charging current;

If the initial voltage of the battery to be charged is lower than the second preset voltage threshold, the battery to be charged is activated according to the activation information.

By adopting the above technical solution, the initial voltage of the battery to be charged is obtained, and whether the battery to be charged needs to be activated can be determined by judging whether the initial voltage of the battery to be charged is less than the second preset voltage threshold, thereby avoiding the state where the battery to be charged needs to be activated. Directly charging the rechargeable battery will lead to safety accidents, which can further effectively improve the safety of charging.

In a possible implementation manner, the activating the battery to be recharged according to the activation information includes:

Acquiring a rated charging voltage of the battery to be charged, and determining an activation voltage of the battery to be charged based on the rated charging voltage of the battery to be charged, wherein the activation voltage is activation information;

The battery to be charged is activated based on the activation voltage of the battery to be charged.

By adopting the above technical solution, by obtaining the rated charging voltage of the battery to be charged, the activation voltage of the battery to be charged can be accurately determined, and the battery to be charged can be activated using the activation voltage of the battery to be charged, so as to ensure charging safety by activating the battery to be charged.

In a possible implementation manner, before the constant current charging of the battery to be charged according to the preset charging current, the method further includes:

Obtain the ambient temperature of the charging pile within the preset time period, and determine the reference temperature of the charging pile based on the ambient temperature of the charging pile within the preset time period;

Determine the charging safety level of the charging pile based on the reference temperature of the charging pile;

Judging whether the charging safety level of the charging pile is lower than the preset charging safety level, so as to determine whether to start the charging pile;

If the charging safety level of the charging pile is not less than the preset charging safety level, start the charging pile and control the charging pile to execute the battery charging process;

If the charging safety level of the charging pile is lower than the preset charging safety level, the charging pile is turned off, and the cooling process of the charging pile is executed.

By adopting the above technical solution, the reference temperature of the charging pile is different under different ambient temperatures, and the reference temperature of the charging pile can be determined by obtaining the ambient temperature within a preset time period, realizing the accurate determination of the safety level of the charging pile through temperature. Based on the relationship between the charging safety level of the charging pile and the preset charging safety level to determine whether to start the charging pile, when the charging safety level of the charging pile is not less than the preset charging safety level, it indicates that the charging pile is in a safe state and can be started and Execute the corresponding charging process; when the charging safety level of the charging pile is lower than the preset charging safety level, it can be determined that the charging pile is not in a safe state, and the charging pile is turned off at this time. At the same time, it is determined whether to start the charging pile based on the safety level of the charging pile. Through intelligent control of the charging pile, the safety of charging is improved through the intelligent start and stop of the charging pile.

In a possible implementation manner, it also includes:

Acquire the temperature of the battery to be charged in each charging stage in real time, wherein the charging stage includes: the first charging stage, the second charging stage and the third charging stage, and the first charging stage is characterized by charging the battery to be charged based on the first charging current , the second charging stage is characterized by charging the to-be-recharged battery based on the second charging voltage, and the third charging stage is characterized by charging the to-be-recharged battery based on the third charging voltage;

Real-time detection of whether the temperature of the battery to be charged in each charging stage is greater than the preset temperature of the rechargeable battery in the corresponding charging stage;

If it is detected that the temperature of the battery to be charged in any charging stage is higher than the preset temperature of the battery to be charged in the corresponding charging stage, the battery charging process is interrupted.

By adopting the above-mentioned technical scheme, the temperature of the battery to be charged in different charging stages is different, and whether the temperature of the battery to be charged in each charging stage is higher than the preset temperature of the rechargeable battery in the preset corresponding charging stage is detected in real time. When any charging stage is detected If the temperature of the battery to be charged is greater than the preset temperature of the battery to be charged corresponding to the charging stage, the charging is terminated in time. Through the real-time detection of the temperature of the battery to be charged during the charging process, the charging is interrupted when the temperature is too high, and the over-temperature protection of the battery to be charged is realized while reducing the damage to the battery.

In a possible implementation manner, after the charging of the battery to be charged is stopped, the method further includes:

Obtain the charging duration of the battery to be charged, wherein the charging duration of the battery to be charged represents the length of time from when the battery to be charged starts charging to when the battery to be charged stops charging;

Obtain the total charge of the battery to be charged, and determine whether there is a charging abnormality based on the charging time of the battery to be charged and the total charge of the battery to be charged;

If there is a charging abnormality, a charging abnormality warning signal is sent.

By adopting the above technical solution, the charging time and the total amount of charging of the battery to be charged are obtained, and then it is possible to accurately judge whether there is abnormal charging based on the charging time of the battery to be charged and the total amount of charging of the battery to be charged, and at the same time determine whether there is abnormal charging Under normal circumstances, an abnormal charging warning signal is sent to remind relevant technical personnel and improve the working efficiency of the charging pile.

In a possible implementation manner, determining whether there is a charging abnormality based on the charging duration of the battery to be charged and the total amount of charging of the battery to be charged includes:

Obtain the model of the battery to be charged, and obtain historical charging data of several first charged batteries corresponding to the model of the battery to be charged based on the model of the battery to be charged, wherein the historical charging data includes: the total amount of historical charging and the historical charging time;

Selecting a plurality of second charged batteries from the plurality of first charged batteries based on the total charge amount of the battery to be charged, the preset charge amount offset value and the historical charge amount of the first charged battery;

Determine the estimated charging duration corresponding to the total amount of charging of the battery to be charged based on the historical charging duration of all the second charged batteries; based on the estimated charging duration corresponding to the total amount of charging of the battery to be charged and the charging duration of the battery to be charged Determine if there is a charging abnormality.

By adopting the above technical solution, the model of the battery to be charged is obtained, and the historical charging data of several charged batteries are determined according to the model of the battery to be charged, and the preset charging time is determined according to the historical charging time in the historical charging data, and whether there is a charging abnormality is judged . Through the historical battery data of several charged batteries and the charging time of the battery to be charged, it can be more accurately judged whether there is a charging abnormality.

In the second aspect, the present application provides a battery charging device based on a charging pile, which adopts the following technical solution:

A battery charging device based on a charging pile, comprising:

The constant current charging module is used to perform constant current charging on the battery to be charged according to the preset charging current when it is detected that the battery to be charged is connected to the charging pile; and obtain charging data in real time, wherein the charging data includes: the actual Voltage, the actual power of the battery to be charged and the charging current of the charging pile; detect whether the actual voltage of the battery to be charged is greater than the first preset voltage threshold; if so, trigger the constant voltage charging module;

The constant voltage charging module is used to charge the rechargeable battery at a constant voltage based on the first output voltage of the charging pile, and detect in real time whether the charging current of the charging pile is less than the preset charging current threshold; if so, trigger the battery power detection module;

The battery power detection module is used to charge the battery to be charged based on the second output voltage of the charging pile, and detect in real time whether the actual power of the battery to be charged is not less than the preset battery power threshold; wherein the second output voltage is less than the first output voltage; if so, trigger to stop the charging module;

The charging stop module is used to stop charging the battery to be charged.

On the third aspect, this application provides an intelligent charging pile system, which adopts the following technical solution:

at least one processor;

memory;

At least one application program, wherein the at least one application program is stored in the memory and configured to be executed by at least one processor, the at least one application program is configured to: execute the above charging pile-based battery charging method.

In the fourth aspect, the present application provides a computer-readable storage medium, adopting the following technical solution:

A computer-readable storage medium, on which a computer program is stored, and when the computer program is executed in a computer, the computer is made to execute the above charging pile-based battery charging method.

In summary, the present application includes at least one of the following beneficial technical effects:

1. When charging the battery to be recharged, charge the battery to be recharged with a constant current based on the preset charging current to improve the charging efficiency of the battery to be charged; during the constant current charging process, if the actual voltage of the battery to be charged is detected to be greater than the first If a preset voltage threshold is reached, polarization will occur inside the battery to be charged, and the probability of explosion of the battery to be charged will increase. Therefore, the first output voltage is used to charge the battery to be charged at a constant voltage to reduce the probability of explosion of the battery to be charged and improve The safety of the battery to be charged; in the process of constant voltage charging according to the first output voltage, if it is detected that the charging current of the charging pile is less than the preset charging current threshold, continuing to charge with the first output voltage will cause abnormal heating of the battery, so Use the second output voltage lower than the first output voltage to reduce the occurrence of abnormal heating of the battery inside the battery; when charging according to the second output voltage, if it is detected that the actual power of the battery to be charged is not less than the preset battery power threshold , it indicates that the charging of the battery to be charged is completed, so the charging can be stopped; it can be seen that the application adjusts the charging current and output of the charging pile adaptively by detecting the actual voltage of the battery to be charged, the output current of the charging pile, and the actual power of the battery to be charged. Voltage, which improves the safety of battery charging from multiple dimensions.

2. The temperature of the battery to be charged in different charging stages is different. Real-time monitoring is performed on whether the temperature of the battery to be charged in each charging stage is higher than the preset temperature of the preset rechargeable battery in the corresponding charging stage. When the temperature of the battery to be charged in any charging stage is detected If the temperature is higher than the preset temperature of the battery to be charged in the corresponding charging stage, the charging flow will be terminated in time. By detecting the temperature of the battery to be charged in real time during the charging process, the charging will be interrupted when the temperature is too high, while reducing damage to the battery. , to achieve the over-temperature protection of the battery to be recharged.

Description of drawings

Fig. 1 is a schematic flowchart of a method for charging a battery based on a charging pile provided in an embodiment of the present application.

Fig. 2 is a schematic diagram of an application scenario in which a charging pile is connected to a battery to be charged according to an embodiment of the present application.

Fig. 3 is a schematic structural diagram of a battery charging device based on a charging pile provided in an embodiment of the present application.

Fig. 4 is a schematic structural diagram of a smart charging pile system provided by an embodiment of the present application.

Detailed ways

The present application will be described in further detail below in conjunction with accompanying drawings 1 to 4 .

This specific embodiment is only an explanation of the application, and it is not a limitation of the application. Those skilled in the art can make modifications without creative contribution to this embodiment as required after reading this description, but as long as it is within the scope of the application are protected by patent law.

In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

In addition, the term "and/or" in this article is only an association relationship describing associated objects, which means that there may be three relationships, for example, A and/or B may mean: A exists alone, A and B exist at the same time, There are three cases of B alone. In addition, the character "/" in this article, unless otherwise specified, generally indicates that the contextual objects are an "or" relationship.

The embodiments of the present application will be further described in detail below in conjunction with the accompanying drawings.

With the development of electric vehicles, low-speed electric vehicles such as electric bicycles, electric motorcycles, and electric tricycles are becoming more and more popular. However, the mileage of low-speed electric vehicles is relatively short, so users need to frequently charge low-speed electric vehicles. In related technologies, a single low-voltage direct current is used to charge low-speed electric vehicles, but the voltage and current of the battery to be charged are constantly changing during the charging process, and the use of a fixed single low-voltage direct current will increase the safety hazard of the battery to be charged. probability.

In order to solve the above technical problems, an embodiment of the present application provides a battery charging method based on a charging pile, which is executed by a smart charging pile system, and the target device connected to the smart charging pile system can be a smart phone, a tablet computer, a notebook computer, a desktop computer, etc. , but not limited to this. The intelligent charging pile system can control multiple charging piles, and the charging piles can be deployed in many places along the street, in street communities, next to newsstands, storage sheds, lottery betting points, or in office buildings or residential areas where the parking time is long area.

With reference to Fig. 1, Fig. 1 provides a schematic flowchart of a charging pile-based battery charging method according to an embodiment of the present application, wherein the method includes step S101, step S102, step S103 and step S104, wherein:

Step S101, when it is detected that the battery to be charged is connected to the charging pile, charge the battery to be charged with a constant current according to the preset charging current; and obtain charging data in real time, wherein the charging data includes: the actual voltage of the battery to be charged, the voltage of the battery to be charged The actual power and the charging current of the charging pile; detecting whether the actual voltage of the battery to be charged is greater than the first preset voltage threshold.

Specifically, the application scenario of the connection between the charging pile and the battery to be charged can be referred to in Figure 2. When charging the battery to be charged, the user can connect the terminal device to the smart charging pile system through wireless transmission, wherein the smart charging pile system can be Control multiple charging piles. Before charging the battery to be charged, the user can query the deployment area of the charging pile in the smart charging pile system on the terminal device. Based on the model information of the battery to be charged, select an idle charging pile in the starting state that can be reserved in the above area. After completing the reservation, the user only needs to arrive at the above charging pile deployment area within the preset arrival time, and connect to the waiting Rechargeable battery and charging pile are enough.

The charging of the battery to be recharged based on the preset charging current is carried out by the intelligent charging pile. Among them, the method of detecting whether the battery to be charged is connected to the charging pile can be realized by detecting whether the charging instruction is received. If the charging instruction corresponding to the battery to be charged is received, it is determined that the battery to be charged is connected to the charging pile. The charging instruction is sent in the form of scanning the QR code of the charging pile, or the user sends the charging instruction in the form of coin insertion. After receiving the user's charging instruction, the intelligent charging pile system controls the charging pile to charge the rechargeable battery with a preset charging current. The preset charging current is set according to experience, and it can meet most actual needs.

Specifically, a voltage sensor is installed inside the charging pile to detect the actual voltage of the battery to be charged, a current sensor is also installed to detect the charging current of the battery to be charged, and an electric energy meter is also installed inside the charging pile to detect The actual capacity of the battery to be charged. The voltage sensor, current sensor and electric energy meter respectively upload the collected charging data to the smart charging pile system, so that the smart charging pile system can obtain the charging data of the battery to be charged.

Specifically, it can be understood that in the constant current charging stage, as the power of the battery to be charged increases, the voltage of the battery to be charged will also continue to increase. When the actual voltage of the battery to be charged is greater than the first preset voltage threshold, it will cause Polarization occurs inside the battery to be charged and increases the probability of explosion of the battery to be charged. In order to reduce the incidence of safety accidents, it is necessary to detect the actual voltage of the battery to be charged in real time. When the actual voltage of the battery to be charged is detected to be greater than the first preset When the voltage threshold is set, step S102 is executed. Setting the first preset voltage threshold can achieve the effect of limiting the voltage of the rechargeable battery, thereby reducing the probability of battery safety accidents. Moreover, at this stage, the battery to be charged is always charged with a preset charging current during this charging stage.

If it is detected that the actual voltage of the battery to be charged is not greater than the first preset voltage threshold, continue to charge the battery to be charged based on the preset charging current. Wherein, the embodiment of the present application does not limit the first preset voltage threshold, which can be set by the user.

Step S102, if it is detected that the actual voltage of the battery to be charged is greater than the first preset voltage threshold, then perform constant-voltage charging on the battery to be charged based on the first output voltage of the charging pile, and detect in real time whether the charging current of the charging pile is lower than the preset charging current threshold.

Specifically, the first output voltage can be determined by a calculation formula, wherein the calculation formula is: first output voltage=rated charging voltage of the battery to be charged*first preset value, in the embodiment of the present application, preferably the first preset The value is 1.2. When it is detected that the actual voltage of the battery to be charged is greater than the first preset voltage threshold, the intelligent charging pile system controls the charging pile to charge the battery to be charged with the first output voltage. The degree of saturation of the internal energy storage unit of the battery continuously reduces the charging current of the battery to be charged. At this time, it is necessary to detect in real time whether the charging current of the battery to be charged is lower than the preset charging current threshold. If the charging current of the battery to be charged is not detected, the charging current of the battery to be charged will continue to decrease. When the charging current drops to the preset charging current When the threshold is reached, continuing to charge with the first output voltage will cause the battery to overheat abnormally. Among them, in the embodiment of the present application, the preferred preset charging current threshold can be obtained by calculation. The calculation formula is: preset charging current threshold=identified capacity of the battery to be charged*the second preset value, and the second preset value is preferred based on the theoretical calculation formula. The default value is 0.05. The identification capacity of the battery to be charged can be obtained from the battery model database according to the model information of the battery to be charged, or can be obtained through user input.

If it is detected that the charging current of the battery to be charged is less than the preset charging current threshold, it indicates that the battery to be charged is close to the state of being fully charged. At this time, it is only necessary to perform step S103 to complete the charging of the battery to be charged; If the charging current is not less than the preset charging current threshold, continue to charge the battery to be recharged with the first output voltage.

Step S103, if it is detected that the charging current of the charging pile is less than the preset charging current threshold, then charge the battery to be recharged based on the second output voltage of the charging pile, and detect in real time whether the actual power of the battery to be charged is not less than the preset battery power threshold; Wherein, the second output voltage is smaller than the first output voltage.

Specifically, the second output voltage can be obtained by calculation, and the calculation formula is: second output voltage=Ua*(t-preset temperature), wherein, in the embodiment of the present application, preferably U is when the ambient temperature reference value is 25 The charging voltage value at °C, a is the voltage adjustment coefficient, (t-preset temperature) is the temperature difference between the compensation temperature and the preset temperature, and the preferred preset temperature is 25°C as the preset temperature, where t=the third The preset value *t ₁ + the fourth preset value *t ₂ . t ₁ is the current ambient temperature, and t ₂ is the temperature of the battery to be charged. In the embodiment of the present application, preferably, the third preset value is 0.8, and the fourth preset value is 0.2. In the actual charging process, the ambient temperature is different from the temperature of the battery to be charged, and the accuracy of the calculation results can be better improved by calculating the compensation temperature. In the embodiment of the present application, the preset battery power threshold is preferably 100%.

In this charging stage, the battery to be charged is not fully charged, and using the second output voltage lower than the first output voltage to charge the battery to be charged can not only maintain the battery, but also make up for the battery to be charged. self-discharge.

If it is detected that the actual power of the battery to be charged is not less than the preset battery power threshold, step S104 is performed; Charge.

Step S104, if it is detected that the actual power of the battery to be charged is not less than the preset battery power threshold, then stop charging the battery to be recharged.

Specifically, when the smart charging pile system judges that the actual power of the battery to be charged is not less than the preset battery power threshold, it indicates that the charging of the battery to be charged is completed, and the smart charging pile system sends a stop charging signal to stop charging the battery to be recharged. Therefore, in this application In the embodiment, there is no situation that the actual power of the battery to be charged is greater than the preset battery power threshold.

Based on the above-mentioned embodiment, when the battery to be charged is charged, the battery to be charged is charged with a constant current based on the preset charging current to improve the charging efficiency of the battery to be charged; in the process of constant current charging, if the actual If the voltage is greater than the first preset voltage threshold, polarization will occur inside the battery to be charged, and the probability of explosion of the battery to be charged will increase. Therefore, the first output voltage is used to charge the battery to be charged at a constant voltage to reduce the probability of explosion of the battery to be charged. Probability, improve the safety of the battery to be charged; in the process of constant voltage charging according to the first output voltage, if it is detected that the charging current of the charging pile is less than the preset charging current threshold, continuing to use the first output voltage to charge will cause the battery to heat up Abnormal, so use the second output voltage less than the first output voltage to reduce the occurrence of abnormal heating of the battery inside the battery; when charging according to the second output voltage, if it is detected that the actual power of the battery to be charged is not less than the preset The battery power threshold indicates that the charging of the battery to be charged is completed, so the charging can be stopped; it can be seen that the application adjusts the charging of the charging pile adaptively by detecting the actual voltage of the battery to be charged, the output current of the charging pile, and the actual power of the battery to be charged. The current and output voltage improve the safety of battery charging from multiple dimensions.

Further, in the embodiment of the present application, before performing constant current charging on the battery to be charged according to the preset charging current, it also includes step SA1-step SA4 (not shown in the drawings), wherein:

Step SA1. Obtain the initial voltage of the battery to be charged, wherein the initial voltage of the battery to be charged represents the voltage of the battery to be charged before it is charged.

Specifically, after the battery to be recharged is connected to the charging pile, the voltage sensor collects the initial voltage of the battery to be charged that is not in the charging state, and uploads it to the smart charging pile system, so that the smart charging pile system can obtain the initial voltage of the battery to be charged.

Step SA2 , judging whether the initial voltage of the battery to be charged is lower than a second preset voltage threshold, wherein the second preset voltage threshold is smaller than the first preset voltage threshold.

Specifically, the smart charging pile system judges the initial voltage of the battery to be charged and the second preset voltage threshold, wherein, the embodiment of the present application does not limit the second preset voltage threshold, which can be set by the user.

Step SA3, if the initial voltage of the battery to be charged is not less than the second preset voltage threshold, then perform charging of the battery to be charged based on the preset charging current.

Step SA4, if the initial voltage of the battery to be charged is lower than the second preset voltage threshold, activate the battery to be charged according to the activation information.

Specifically, before the battery to be charged is charged, due to the power consumption of the battery to be charged, its internal voltage will decrease as the waiting time increases. When the voltage of the battery to be charged is less than the second preset voltage threshold, the battery to be charged will The rechargeable battery starts the self-protection function, and the rechargeable battery will enter a dormant state. If at this time, the battery to be charged is directly connected to the charging pile, the intelligent charging system will control the charging pile to charge the battery to be charged according to the first charging current, but directly charging the battery to be charged in a dormant state will cause the battery to be charged to Overvoltage occurs, which can lead to safety accidents.

Therefore, before charging the battery to be charged, it is necessary to judge whether the initial voltage of the battery to be charged is lower than the second preset voltage threshold, so as to determine whether the battery to be charged needs to be activated. If the initial voltage of the battery to be charged is not less than the second preset voltage threshold, it indicates that the battery to be charged is not in a dormant state, and the battery to be charged can be directly charged; if it is detected that the initial voltage of the battery to be charged is less than the second preset voltage The threshold value indicates that the battery to be charged is in a dormant state. In order to avoid safety accidents, the battery to be charged needs to be activated according to the activation information.

Based on the above embodiments, for a battery to be charged that has not yet been charged, it can be determined whether the battery to be charged is in a dormant state by judging the relationship between the initial voltage of the battery to be charged and the second preset voltage threshold. In the dormant state, charging the to-be-recharged battery based on the first charging current can be performed, and when the to-be-recharged battery is in the dormant state, the to-be-recharged battery needs to be activated to avoid safety accidents. Ensure the charging safety of the battery to be charged.

Further, in the embodiment of the present application, the battery to be recharged is activated according to the activation information, including step SB1-step SB3 (not shown in the drawings), wherein:

Step SB1. Obtain the rated charging voltage of the battery to be charged, and determine the activation voltage of the battery to be charged based on the rated charging voltage of the battery to be charged, wherein the activation voltage is activation information.

Specifically, one way to obtain the rated charging voltage of the battery to be charged can be: obtain the rated charging voltage of the battery to be charged entered by the user on the platform; another way to obtain it can be: after the battery to be charged is connected, the system automatically The model of the battery to be charged is obtained, and the rated charging voltage corresponding to the battery to be charged is obtained from the battery model database based on the model of the battery to be charged.

Step SB2, activating the battery to be charged based on the activation voltage of the battery to be charged.

Specifically, the preferred way to determine the activation voltage according to the rated charging voltage of the battery to be charged is: select the preset range of the rated charging voltage of the battery to be charged as the activation voltage of the battery to be charged. time, to improve the activation efficiency, preferably the preset range of the rated charging voltage of the battery to be charged is set to 85%-99%. For example, when the rated charging voltage of the battery to be charged is 70V, 60V or 65V can be selected as the activation voltage of the battery to be charged. The activation voltage used to activate the battery to be charged can be the same as the rated charging voltage of the battery to be charged, or lower than the rated charging voltage of the battery to be charged. In this embodiment of the application, in order to ensure the safety of the battery to be charged, the treatment For the damage of the rechargeable battery, it is preferable to use a charging voltage lower than the rated charging voltage of the battery to be charged as the activation voltage, and use the activation voltage to activate the battery to be recharged.

Based on the above-mentioned embodiment, the rated charging voltage of the battery to be charged is obtained, and the activation voltage of the battery to be charged can be accurately determined according to the rated charging voltage of the battery to be charged, and the battery to be charged can be activated based on the activation voltage, thereby avoiding the charging of the battery to be charged. Charging in an inactive state causes accidents to improve the safety of charging.

Further, in the embodiment of the present application, before performing constant current charging on the battery to be charged according to the preset charging current, step SC1-step SC5 (not shown in the drawings) are also included, wherein:

Step SC1. Obtain the ambient temperature of the charging pile within the preset time period, and determine the reference temperature of the charging pile based on the ambient temperature of the charging pile within the preset time period.

Specifically, the ambient temperature of the charging pile within the preset time period may be determined by the maximum temperature or the average temperature.

Therefore, an achievable way of determining the ambient temperature within the preset time period based on the highest temperature may specifically include: acquiring several temperatures within the preset time period in real time, and using the highest temperature as the ambient temperature within the preset time period. An achievable way of determining the ambient temperature within the preset time length based on the average temperature may specifically include: dividing the preset time length into multiple second preset time lengths on average, and calculating the ambient temperature based on the number of second preset time lengths To obtain the average temperature, the calculation formula is: ambient temperature=(environment temperature corresponding to the second preset duration*the number of second preset durations)÷the number of second preset durations. Wherein, the ambient temperature changes in real time, so the ambient temperature corresponding to each second preset duration is different. In the embodiment of the present application, it is preferred that the preset duration is 2 hours, so as to avoid the chance that the duration is too long or too short.

Furthermore, an achievable way to determine the reference temperature of the charging pile according to the ambient temperature is to calculate it based on the temperature transfer coefficient, the temperature change function, and the ambient temperature within a preset time period. Among them, the calculation formula is: Among them, t _i is the temperature transfer coefficient at the i-th moment, x _mi is the external temperature of the charging pile at the mi-th moment, u ₁ is the internal temperature of the charging pile, y _mi is the temperature change of the charging pile at the mi-th moment, and k ₁ is the charging pile temperature. Pile temperature affects the first coefficient, k ₂ is the second coefficient of charging pile temperature, k ₃ is the third coefficient of charging pile temperature, ρ _m is the temperature change at the mth moment, δ _m is the reference of the charging pile at the mth moment Temperature, τ is the contrast coefficient, and θ is the thermal conductivity of the charging pile. Within the preset time period, as the external environment temperature changes, the internal temperature and external temperature of the charging pile will change accordingly, and then the reference temperature of the charging pile can be calculated according to the temperature change.

Step SC2, determining the charging safety level of the charging pile based on the reference temperature of the charging pile.

Specifically, the charging safety level of the charging pile can be determined through the corresponding relationship.

Preferably, determining the charging safety level of the charging pile based on the corresponding relationship may specifically include:

The preset reference temperature of the charging pile is obtained, wherein, according to different seasons, the preset reference temperature of the charging pile is different. The current season can be determined based on the current month information by obtaining the current month information. For example, if it is determined that the current season is summer, then the preset reference temperature of the charging pile is set as the first preset reference temperature; if it is determined that the current season is winter, then the preset reference temperature of the charging pile is set as the second preset reference temperature temperature, wherein the first preset reference temperature and the second preset reference temperature are pre-input into the smart charging pile system, and the first preset reference temperature>the second preset reference temperature, the embodiment of the present application does not apply to the first The preset reference temperature and the second preset reference temperature are limited, and the user can set it according to actual needs.

Calculate the temperature difference between the reference temperature of the charging pile and the preset reference temperature of the charging pile, the calculation formula is: temperature difference = reference temperature of the charging pile - preset reference temperature of the charging pile. It can be understood that when the reference temperature of the charging pile is higher than the preset reference temperature of the charging pile, it indicates that there is a safety problem in the current charging pile, and when the reference temperature of the charging pile is lower than the preset reference temperature of the charging pile, it can indicate that there is no safety problem in the charging pile , thus, in the embodiment of the present application, the temperature difference>0.

The safety level of the charging pile is determined based on the correspondence between the temperature difference and the safety level of the charging pile. In the embodiment of this application, the preferred safety level is the first level, the second level, and the third level. The higher the security, when the temperature difference < the first preset temperature difference, it corresponds to the third level; when the first preset temperature difference < the temperature difference < the second preset temperature difference, it corresponds to the second level; when the temperature difference > the second preset temperature difference, it corresponds to the first level.

Step SC3, judging whether the charging safety level of the charging pile is lower than a preset charging safety level, so as to determine whether to activate the charging pile.

Specifically, the embodiment of the present application does not limit the preset charging safety level, which can be set by the user. Charging safety can be improved by determining the relationship between the charging safety level of the charging pile and the preset charging safety level to determine whether to start the charging pile.

Step SC4, if the charging safety level of the charging pile is not less than the preset charging safety level, start the charging pile, and control the charging pile to execute the battery charging process.

Step SC5, if the charging safety level of the charging pile is lower than the preset charging safety level, shut down the charging pile, and execute the charging pile cooling process.

Specifically, if it is determined that the charging safety level of the charging pile is not less than the preset charging safety level, it indicates that the temperature difference between the reference temperature of the charging pile and the preset reference temperature is small, and the reference temperature of the charging pile has not changed significantly. The pile can be used normally, the charging pile can be started, and the charging pile can be controlled to perform the charging process. If it is determined that the charging safety level of the charging pile is lower than the preset charging safety level, it indicates that the temperature difference between the reference temperature of the charging pile and the preset reference temperature is large, and there is an obvious temperature rise of the charging pile. At this time, it can be determined that the charging pile There are certain safety issues, and the charging pile needs to be turned off, and the cooling process of the charging pile should be carried out.

Among them, the charging pile can be cooled by fan cooling. The fan-based cooling method may specifically include: the smart charging pile system determines the cooling level of the fan based on the temperature difference, and controls the wind speed of the fan according to the cooling level of the fan, and realizes the cooling of the charging pile through the operation of the fan.

Based on the above-mentioned embodiments, the ambient temperature is different in different time periods, and the reference temperature of the corresponding charging pile is also different, so it is necessary to determine the reference temperature of the charging pile based on the ambient temperature; and determine the safety level of the charging pile according to the reference temperature of the charging pile, and then can accurately Determine whether the charging pile is safe. At the same time, when the charging pile is in a safe state, the charging process is executed, and when the charging pile is not in a safe state, the charging pile is turned off.

Further, in the embodiment of the present application, in order to improve the safety of the battery to be charged during the charging process, steps SD1-SD3 (not shown in the drawings) are also included, wherein:

Step SD1, obtain the temperature of the battery to be charged in each charging stage in real time, wherein the charging stage includes: the first charging stage, the second charging stage and the third charging stage, and the first charging stage characterization is performed based on the first charging current of the battery to be charged Charging, the second charging stage is characterized by charging the battery to be recharged based on the second charging voltage, and the third charging stage is characterized by charging the to-be-recharged battery based on the third charging voltage

Specifically, the temperature of the battery to be charged obtained in real time is uploaded to the intelligent charging pile system through the temperature sensor. It can be understood that during the charging process of the battery to be charged, electrical energy can be converted into chemical energy and heat energy, and as the amount of electricity increases, the converted heat energy will also increase. As a result, the temperature of the battery to be charged at different charging stages also shows an upward trend.

Step SD2, detecting in real time whether the temperature of the battery to be charged in each charging stage is higher than the preset temperature of the rechargeable battery in the corresponding charging stage.

Step SD3. If it is detected that the temperature of the battery to be charged in any charging stage is higher than the preset temperature of the battery to be charged in the corresponding charging stage, the battery charging process is interrupted.

Specifically, the first charging stage corresponds to the first preset temperature of the battery to be charged, the second charging stage corresponds to the second preset temperature of the battery to be charged, and the third charging stage corresponds to the third preset temperature of the battery to be charged. It can be understood that, The first preset temperature of the battery to be charged<the second preset temperature of the battery to be charged<the third preset temperature of the battery to be charged. The third preset is to limit the temperature of the battery to be charged, which can be set by the user.

Acquire the temperature of the battery to be charged in each charging stage in real time, and make a judgment, if it is detected that the temperature of the battery to be charged in the first charging stage is greater than the first preset temperature of the battery to be charged, or, the temperature of the battery to be charged in the second charging stage is greater than The second preset temperature of the battery to be charged, or the temperature of the battery to be charged in the third charging stage is greater than the third preset temperature of the battery to be charged, then the intelligent charging pile system stops the charging process of the battery to be charged. Otherwise, the normal battery charging process is performed.

Based on the above embodiments, the temperature of the battery to be charged in each charging stage is obtained in real time, and the relationship between the temperature of the battery to be charged in each charging stage and the preset temperature of the rechargeable battery in the corresponding charging stage is detected in real time, realizing the Real-time monitoring of battery temperature. Further, if the temperature of the battery to be charged is greater than the preset temperature of the battery to be charged in the corresponding charging stage, it indicates that the current temperature of the battery to be charged is too high, and there is a certain potential safety hazard in continuing the charging process. The temperature of the rechargeable battery is automatically cut off to realize the over-temperature protection of the rechargeable battery.

Further, in the embodiment of the present application, after stopping charging the battery to be charged, steps SE1-SE3 (not shown in the drawings) are also included, wherein:

Step SE1. Obtain the charging duration of the battery to be charged, wherein the charging duration of the battery to be charged represents the length of time from the start of charging of the battery to be charged to the stop of charging of the battery to be charged.

Specifically, the smart charging pile system counts according to the start of charging the battery to be charged. When the battery to be charged stops, the smart charging pile system counts and ends, and then the charging time of the battery to be charged can be obtained, that is, the charging time = stop charging time - waiting time Rechargeable battery starts charging time. The charging start of the battery to be charged represents the charging moment when the battery to be charged is charged with the first charging current.

Step SE2, obtain the total charge of the battery to be charged, and determine whether there is abnormal charging based on the charging time of the battery to be charged and the total charge of the battery to be charged.

Step SE3, if there is abnormal charging, send a warning signal of abnormal charging.

Specifically, the total amount of charging of the battery to be charged is detected by the electric energy meter in real time and uploaded to the intelligent charging pile system.

Wherein, the way of determining abnormal charging may include determining based on the charging duration and total charging amount of the battery to be charged, or determining based on historical charging duration and total charging amount.

In a practicable manner, determining whether there is a charging abnormality based on the charging data of the battery to be charged may specifically include: obtaining the reference charging time corresponding to each charging stage and the charging time algorithm model, wherein the calculation formula is: The reference charging time of the rechargeable battery = the reference charging time corresponding to the first charging stage + the reference charging time corresponding to the second charging stage + the reference charging time corresponding to the third stage, the charging time of each charging stage is the corresponding The total amount of charging, the charging current corresponding to each charging stage and the charging voltage corresponding to each charging stage are input into the charging time algorithm model to calculate. Determine whether the reference charging time of the battery to be charged is the same as the charging time of the battery to be charged. If the same, it indicates that there is no charging abnormality in the battery to be charged;

In another practicable manner, the determination based on historical charging data may include: obtaining the model of the battery to be charged, and obtaining historical charging data of several first charged batteries based on the model of the battery to be charged, wherein the historical charging data includes: The total amount of charging and the historical charging time; based on the total amount of charge of the battery to be charged, the preset total amount of charge offset value and the total amount of historical charge of the first charged battery, a plurality of first charged batteries are screened out. Two charged batteries; determine the estimated charging duration corresponding to the total amount of charging of the battery to be charged based on the historical charging duration of all the second charged batteries; based on the estimated charging duration corresponding to the total amount of charging of the battery to be charged and the battery to be charged to determine whether there is a charging abnormality.

Based on the above-mentioned embodiments, the charging duration and total charging amount of the battery to be charged are obtained, and then it is possible to determine whether there is a charging abnormality according to the charging duration and the charging amount of the battery to be charged. If it is determined that there is a charging abnormality, it is necessary to send a charging abnormality warning signal in time To remind the relevant technical personnel to carry out maintenance, to avoid long-term damage to the charging pile.

Further, in the embodiment of the present application, based on the charging duration of the battery to be charged and the total amount of charging of the battery to be charged, it is determined whether there is a charging abnormality, including:

Obtain the model of the battery to be charged, and obtain historical charging data of several first charged batteries corresponding to the model of the battery to be charged based on the model of the battery to be charged, wherein the historical charging data includes: the total amount of historical charging and the historical charging time.

Specifically, the model of the battery to be charged can be acquired by the user inputting the model of the battery to be charged. In the embodiment of the present application, multiple charging piles can be connected to the intelligent charging pile system through a communication connection. During the charging process of the battery to be charged, the charging data of the battery to be charged can be obtained and stored in the battery charging database. Multiple battery models and several historical charging data corresponding to each model are stored in the charging database. Furthermore, historical charging data of several first charged batteries can be obtained based on the model of the battery to be charged.

A plurality of second charged batteries are selected from the plurality of first charged batteries based on the total charge amount of the battery to be charged, the preset offset value of the total charge amount and the historical total charge amount of the first charged battery.

Specifically, the embodiment of the present application does not limit the offset value of the preset charging total amount, and the user can set it by himself. When screening the historical charging time of multiple second charged batteries, the screening range is [total charge of the battery to be charged - offset value of the preset total charge, total charge of the battery to be charged + preset total charge Offset value], and then can be screened based on the range of the above-mentioned total amount of charging, to obtain the historical charging duration of each second charged battery.

An estimated charging duration corresponding to the total amount of charging of the battery to be charged is determined based on historical charging durations of all second charged batteries.

Whether there is abnormal charging is determined based on the estimated charging duration corresponding to the total amount of charging of the battery to be charged and the charging duration of the battery to be charged.

Specifically, the estimated charging duration may be determined through the maximum charging duration, which may specifically include: selecting the maximum duration among the historical charging durations of all second charged batteries as the estimated charging duration corresponding to the total amount of charging of the battery to be charged. Judging whether the charging duration of the battery to be charged is the same as the estimated charging duration, if the same, it is determined that there is no charging abnormality; if not, it is determined that there is a charging abnormality.

Based on the above embodiment, the battery model to be charged is obtained, the historical charging data of several charged batteries are determined based on the battery model to be charged, the estimated charging time is determined according to the historical charging time in the historical charging data, and whether there is charging abnormality is judged. Through the historical battery data of several charged batteries and the charging time of the battery to be charged, it can be more accurately judged whether there is a charging abnormality.

The above-mentioned embodiment introduces a charging pile-based battery charging method from the perspective of method flow. The following embodiments introduce a charging pile-based battery charging device from the perspective of a virtual module or virtual unit. For details, see the following embodiments .

An embodiment of the present application provides a battery charging device based on a charging pile. As shown in FIG. 3 , the charging pile-based battery charging device may specifically include:

The constant current charging module 210 is used to perform constant current charging on the battery to be charged according to the preset charging current when it is detected that the battery to be charged is connected to the charging pile; and obtain charging data in real time, wherein the charging data includes: the actual voltage of the battery to be charged , the actual power of the battery to be charged and the charging current of the charging pile; detect whether the actual voltage of the battery to be charged is greater than the first preset voltage threshold; if so, trigger the constant voltage charging module 220;

The constant voltage charging module 220 is used to charge the rechargeable battery at a constant voltage based on the first output voltage of the charging pile, and detect in real time whether the charging current of the charging pile is less than the preset charging current threshold; if so, trigger the battery power detection module 230; The battery power detection module 230 is configured to charge the battery to be charged based on the second output voltage of the charging pile, and detect in real time whether the actual power of the battery to be charged is not less than the preset battery power threshold; wherein the second output voltage is less than the first output voltage voltage; if so, trigger to stop charging module 240;

The charging stop module 240 is used to stop charging the battery to be charged.

A possible implementation in the embodiment of the present application, the battery charging device based on the charging pile, further includes:

Rechargeable battery activation module for:

Acquiring the initial voltage of the battery to be charged, wherein the initial voltage of the battery to be charged represents the voltage of the battery to be charged before charging; judging whether the initial voltage of the battery to be charged is less than a second preset voltage threshold, wherein the second preset voltage threshold less than a first preset voltage threshold;

If the initial voltage of the battery to be charged is not less than the second preset voltage threshold, then trigger the constant current charging module 210;

If the initial voltage of the battery to be charged is lower than the second preset voltage threshold, the battery to be charged is activated according to the activation information.

In a possible implementation in the embodiment of the present application, when the activation module of the battery to be charged is executed, the battery to be charged is activated according to the activation information, and is used for:

Obtaining the rated charging voltage of the battery to be charged, and determining the activation voltage of the battery to be charged based on the rated charging voltage of the battery to be charged, wherein the activation voltage is activation information;

The battery to be charged is activated based on the activation voltage of the battery to be charged.

A possible implementation in the embodiment of the present application, the battery charging device based on the charging pile, further includes:

The charging pile safety level determination module is used for:

Obtain the ambient temperature of the charging pile within the preset time period, and determine the reference temperature of the charging pile based on the ambient temperature of the charging pile within the preset time period;

Determine the charging safety level of the charging pile based on the reference temperature of the charging pile;

Judging whether the charging safety level of the charging pile is lower than the preset charging safety level, so as to determine whether to start the charging pile;

If the charging safety level of the charging pile is not less than the preset charging safety level, start the charging pile and control the charging pile to execute the battery charging process;

If the charging safety level of the charging pile is lower than the preset charging safety level, the charging pile is turned off, and the cooling process of the charging pile is executed.

A possible implementation in the embodiment of the present application, the battery charging device based on the charging pile, further includes:

The battery temperature judging module to be charged is used for:

Acquire the temperature of the battery to be charged in each charging stage in real time, wherein the charging stage includes: the first charging stage, the second charging stage and the third charging stage, the first charging stage is characterized by charging the to-be-charged battery based on the first charging current, and the second The second charging stage is characterized by charging the to-be-rechargeable battery based on the second charging voltage, and the third charging stage is characterized by charging the to-be-recharged battery based on the third charging voltage;

Real-time detection of whether the temperature of the battery to be charged in each charging stage is greater than the preset temperature of the rechargeable battery in the corresponding charging stage;

If it is detected that the temperature of the battery to be charged in any charging stage is higher than the preset temperature of the battery to be charged in the corresponding charging stage, the battery charging process is interrupted.

In a possible implementation in the embodiment of the present application, the charging pile-based battery charging device further includes:

The abnormal charging determination module is used for:

Obtain the charging duration of the battery to be charged, wherein the charging duration of the battery to be charged represents the length of time from when the battery to be charged starts charging to when the battery to be charged stops charging;

Obtain the total charge of the battery to be charged, and determine whether there is a charging abnormality based on the charging time of the battery to be charged and the total charge of the battery to be charged;

If there is a charging abnormality, a charging abnormality warning signal is sent.

In a possible implementation in the embodiment of the present application, when the abnormal charging determination module determines whether there is abnormal charging based on the charging duration of the battery to be charged and the total amount of charging of the battery to be charged, it is used to:

Obtain the model of the battery to be charged, and obtain historical charging data of several first charged batteries corresponding to the model of the battery to be charged based on the model of the battery to be charged, wherein the historical charging data includes: the total amount of historical charging and the historical charging time;

Selecting a plurality of second charged batteries from the plurality of first charged batteries based on the total charge amount of the battery to be charged, the preset charge amount offset value and the historical charge amount of the first charged battery;

Determine the estimated charging duration corresponding to the total amount of charging of the battery to be charged based on the historical charging duration of all the second charged batteries; determine whether to There is a charging abnormality.

Those skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the charging pile-based battery charging device described above can refer to the corresponding process in the foregoing method embodiment, and will not be repeated here. repeat.

A smart charging pile system provided by an embodiment of the present application is introduced below. The smart charging pile system described below and the charging pile-based battery charging method described above can be referred to in correspondence.

An embodiment of the present application provides a smart charging pile system, as shown in FIG. 4 , which is a schematic structural diagram of a smart charging pile system provided in an embodiment of the present application. The smart charging pile system 300 shown in FIG. 4 includes: processor 301 and memory 303 . Wherein, the processor 301 is connected to the memory 303 , such as through a bus 302 . Optionally, the smart charging pile system 300 may further include a transceiver 304 . It should be noted that in practical applications, the transceiver 304 is not limited to one, and the structure of the smart charging pile system 300 does not constitute a limitation to the embodiment of the present application.

The processor 301 can be a CPU (Central Processing Unit, central processing unit), a general-purpose processor, a DSP (Digital Signal Processor, a data signal processor), an ASIC (Application Specific Integrated Circuit, an application specific integrated circuit), an FPGA (Field Programmable Gate Array, a field programmable gate array) or other possible Program logic devices, transistor logic devices, hardware components, or any combination thereof. It can realize or execute various exemplary logical blocks, modules and circuits described in conjunction with the disclosed content of the embodiments of the present application. The processor 301 may also be a combination that implements computing functions, for example, a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like.

Bus 302 may include a path for communicating information between the components described above. The bus 302 may be a PCI (Peripheral Component Interconnect, Peripheral Component Interconnect Standard) bus or an EISA (Extended Industry Standard Architecture, Extended Industry Standard Architecture) bus or the like. The bus 302 can be divided into address bus, data bus, control bus and so on. For ease of representation, only one thick line is used in FIG. 4 , but it does not mean that there is only one bus or one type of bus.

Memory 303 can be ROM (ReadOnlyMemory, read-only memory) or other types of static storage devices that can store static information and instructions, RAM (RandomAccessMemory, random access memory) or other types of dynamic storage devices that can store information and instructions, It can also be EEPROM (Electrically ErasableProgrammableReadOnlyMemory, Electrically Erasable Programmable Read-Only Memory), CD-ROM (CompactDiscReadOnlyMemory, CD-ROM) or other optical disc storage, optical disc storage (including compact disc, laser disc, optical disc, digital versatile disc, Blu-ray disc) etc.), disk storage media or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, without limitation.

The memory 303 is used to store application program codes for executing the solutions of the embodiments of the present application, and the execution is controlled by the processor 301 . The processor 301 is configured to execute the application program code stored in the memory 303, so as to realize the contents shown in the foregoing method embodiments.

Among them, the intelligent charging pile system includes but is not limited to: mobile phones, notebook computers, digital broadcast receivers, PDA (personal digital assistant), PAD (tablet computer), PMP (portable multimedia player), vehicle terminal (such as vehicle navigation terminal ) and the like as well as stationary terminals such as digital TVs, desktop computers and the like. The smart charging pile system shown in FIG. 4 is only an example, and should not impose any limitation on the functions and application scope of the embodiments of the present application.

The following is an introduction to a computer-readable storage medium provided by the embodiments of the present application. A computer program is stored on the computer-readable storage medium. When running on a computer, the computer can execute the corresponding content in the foregoing method embodiments. Compared with related technologies, when the battery to be charged is charged, the battery to be charged is charged with a constant current based on the preset charging current to improve the charging efficiency of the battery to be charged; in the process of constant current charging, if the battery to be charged is detected If the actual voltage is greater than the first preset voltage threshold, polarization will occur inside the battery to be charged, and the probability of explosion of the battery to be charged will increase. Therefore, the first output voltage is used to charge the battery to be charged at a constant voltage to reduce the explosion of the battery to be charged. probability, improve the safety of the battery to be charged; in the process of constant voltage charging according to the first output voltage, if it is detected that the charging current of the charging pile is less than the preset charging current threshold, continuing to charge with the first output voltage will cause the battery to Abnormal heating, so use the second output voltage lower than the first output voltage to reduce the occurrence of abnormal heating of the battery inside the battery; when charging according to the second output voltage, if it is detected that the actual power of the battery to be charged is not less than the preset If the battery power threshold is set, it indicates that the charging of the battery to be charged is completed, so the charging can be stopped; it can be seen that the application adjusts the charging pile adaptively by detecting the actual voltage of the battery to be charged, the output current of the charging pile, and the actual power of the battery to be charged. The charging current and output voltage improve the safety of battery charging from multiple dimensions.

It should be understood that although the various steps in the flow chart of the accompanying drawings are displayed sequentially according to the arrows, these steps are not necessarily executed sequentially in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some of the steps in the flowcharts of the accompanying drawings may include multiple sub-steps or multiple stages, and these sub-steps or stages may not necessarily be executed at the same time, but may be executed at different times, and the order of execution is also It is not necessarily performed sequentially, but may be performed alternately or alternately with at least a part of other steps or sub-steps or stages of other steps.

The above are only some implementations of the present application. It should be pointed out that for those of ordinary skill in the art, some improvements and modifications can be made without departing from the principle of the application, and these improvements and modifications should also be considered as For the scope of protection of this application.

Claims (10)

1. A battery charging method based on a charging pile, characterized in that, comprising: When it is detected that the battery to be charged is connected to the charging pile, the battery to be charged is charged with a constant current according to the preset charging current; and the charging data is obtained in real time, wherein the charging data includes: the actual voltage of the battery to be charged, the actual voltage of the battery to be charged Electricity and charging current of the charging pile; detecting whether the actual voltage of the battery to be charged is greater than the first preset voltage threshold; If it is detected that the actual voltage of the battery to be charged is greater than the first preset voltage threshold, the battery to be recharged is charged at a constant voltage based on the first output voltage of the charging pile, and whether the charging current of the charging pile is detected in real time is less than the preset charging current threshold; If it is detected that the charging current of the charging pile is less than the preset charging current threshold, the battery to be recharged is charged based on the second output voltage of the charging pile, and it is detected in real time whether the actual power of the battery to be charged is not less than the preset battery power threshold; wherein, the The second output voltage is less than the first output voltage; If it is detected that the actual power of the battery to be charged is not less than the preset battery power threshold, the charging of the battery to be charged is stopped. 2. The battery charging method based on charging pile according to claim 1, characterized in that, before performing constant current charging on the battery to be charged according to the preset charging current, further comprising: Obtaining the initial voltage of the battery to be charged, wherein the initial voltage of the battery to be charged represents the voltage of the battery to be charged before it is charged; judging whether the initial voltage of the battery to be charged is less than a second preset voltage threshold, wherein the second preset voltage threshold is less than the first preset voltage threshold; If the initial voltage of the battery to be charged is not less than the second preset voltage threshold, then perform charging the battery to be charged based on a preset charging current; If the initial voltage of the battery to be charged is lower than the second preset voltage threshold, the battery to be charged is activated according to the activation information. 3. The charging pile-based battery charging method according to claim 2, wherein the activating the battery to be recharged according to the activation information includes: Acquiring a rated charging voltage of the battery to be charged, and determining an activation voltage of the battery to be charged based on the rated charging voltage of the battery to be charged, wherein the activation voltage is activation information; The battery to be charged is activated based on the activation voltage of the battery to be charged. 4. The battery charging method based on charging pile according to claim 1, characterized in that, before performing constant current charging on the battery to be charged according to the preset charging current, further comprising: Obtain the ambient temperature of the charging pile within the preset time period, and determine the reference temperature of the charging pile based on the ambient temperature of the charging pile within the preset time period; Determine the charging safety level of the charging pile based on the reference temperature of the charging pile; Judging whether the charging safety level of the charging pile is lower than the preset charging safety level, so as to determine whether to start the charging pile; If the charging safety level of the charging pile is not less than the preset charging safety level, start the charging pile and control the charging pile to execute the battery charging process; If the charging safety level of the charging pile is lower than the preset charging safety level, the charging pile is turned off, and the cooling process of the charging pile is executed. 5. The charging pile-based battery charging method according to claim 1, further comprising: Acquire the temperature of the battery to be charged in each charging stage in real time, wherein the charging stage includes: the first charging stage, the second charging stage and the third charging stage, and the first charging stage is characterized by charging the battery to be charged based on the first charging current , the second charging stage is characterized by charging the to-be-recharged battery based on the second charging voltage, and the third charging stage is characterized by charging the to-be-recharged battery based on the third charging voltage; Real-time detection of whether the temperature of the battery to be charged in each charging stage is greater than the preset temperature of the rechargeable battery in the corresponding charging stage; If it is detected that the temperature of the battery to be charged in any charging stage is higher than the preset temperature of the battery to be charged in the corresponding charging stage, the battery charging process is interrupted. 6. The charging pile-based battery charging method according to any one of claims 1 to 5, characterized in that, after the charging of the battery to be charged is stopped, further comprising: Obtain the charging duration of the battery to be charged, wherein the charging duration of the battery to be charged represents the length of time from when the battery to be charged starts charging to when the battery to be charged stops charging; Obtain the total charge of the battery to be charged, and determine whether there is a charging abnormality based on the charging time of the battery to be charged and the total charge of the battery to be charged; If there is a charging abnormality, a charging abnormality warning signal is sent. 7. The battery charging method based on charging piles according to claim 6, characterized in that, determining whether there is a charging abnormality based on the charging duration of the battery to be charged and the total amount of charging of the battery to be charged includes: Obtain the model of the battery to be charged, and obtain historical charging data of several first charged batteries corresponding to the model of the battery to be charged based on the model of the battery to be charged, wherein the historical charging data includes: the total amount of historical charging and the historical charging time; Selecting a plurality of second charged batteries from the plurality of first charged batteries based on the total charge amount of the battery to be charged, the preset charge amount offset value and the historical charge amount of the first charged battery; determining an estimated charging duration corresponding to the total amount of charging of the battery to be charged based on historical charging durations of all second charged batteries; Whether there is abnormal charging is determined based on the estimated charging duration corresponding to the total amount of charging of the battery to be charged and the charging duration of the battery to be charged. 8. A battery charging device based on a charging pile, characterized in that it comprises: The constant current charging module is used to perform constant current charging on the battery to be charged according to the preset charging current when it is detected that the battery to be charged is connected to the charging pile; and obtain charging data in real time, wherein the charging data includes: the actual Voltage, the actual power of the battery to be charged and the charging current of the charging pile; detect whether the actual voltage of the battery to be charged is greater than the first preset voltage threshold; if so, trigger the constant voltage charging module; The constant voltage charging module is used to charge the rechargeable battery at a constant voltage based on the first output voltage of the charging pile, and detect in real time whether the charging current of the charging pile is less than the preset charging current threshold; if so, trigger the battery power detection module; The battery power detection module is used to charge the battery to be charged based on the second output voltage of the charging pile, and detect in real time whether the actual power of the battery to be charged is not less than the preset battery power threshold; wherein the second output voltage is less than the first output voltage; if so, trigger to stop the charging module; The charging stop module is used to stop charging the battery to be charged. 9. An intelligent charging pile system, characterized in that it comprises: at least one processor; memory; At least one application program, wherein at least one application program is stored in the memory and configured to be executed by at least one processor, the at least one application program is configured to: perform the charging-based Pile battery charging method. 10. A computer-readable storage medium, characterized in that a computer program is stored thereon, and when the computer program is executed in a computer, the computer is made to execute the charging-based Pile battery charging method.