A safe charging control method and system

Abstract

The present application relates to a kind of safe charging control method and system, before starting charging, charging gun, charging box and vehicle terminal are self-inspected to determine whether to meet charging condition;When the charging gun detects starting charging, first control instruction is sent to the locking module of charging gun, to control the locking module locks the charging gun and vehicle terminal;During charging, the state of charging gun is detected in real time, when detecting that charging gun is abnormal, second control instruction is sent to the locking module, to control the locking module unlocks the charging gun and vehicle terminal, wherein, before sending second control instruction, it also includes according to the indication information of mobile terminal executes exception coping strategy;Through the above scheme, the mismatch of charging equipment can be effectively solved, the unexpected interruption of charging can be effectively prevented, and the timely feedback of exception is improved, the use experience of user is improved.

Description

[Technical Field]

[0001] This invention relates to the field of new energy vehicle charging piles, and in particular to a safe charging control method and system. [Background Technology]

[0002] With the continuous development of the electric vehicle industry, the convenience of charging has received widespread attention. To improve the user experience of electric vehicles, supporting service facilities such as fast charging and public charging stations have been extensively researched; however, this has also brought about many problems:

[0003] 1. Due to the shared nature of charging station equipment, regular maintenance is required to ensure reliable charging services. However, each vehicle is in a different state before charging, and it needs to be confirmed in advance whether it can be directly compatible with the charging pile. When users are not familiar with it, they need to find a professional to confirm, which causes inconvenience to users.

[0004] 2. There is a risk of accidental interruption during the charging process. When charging, the charging gun is connected to the vehicle terminal for charging. If it is interrupted by someone unexpectedly, the charging amount will be insufficient, which will affect the user's travel and usage experience.

[0005] 3. Electric vehicles generally take a long time to charge, and if the charging gun is not protected, it can easily be pulled out by someone.

[0006] 4. During the charging process, if a charging abnormality occurs, charging is usually stopped directly, and the user is notified. If the user is on-site, the issue can be handled directly, such as replacing the charging station. If the user is not on-site, the issue needs to be handled again by returning to the site, which causes inconvenience to the user.

[0007] Therefore, it is indeed necessary to provide a safe charging control scheme to overcome the shortcomings of existing technologies. [Summary of the Invention]

[0008] In view of the shortcomings of the prior art, the purpose of this invention is to provide a safe charging control method and system.

[0009] This invention provides a safe charging control method, the control method comprising:

[0010] The charging gun, charging box, and vehicle terminal perform status self-checks to determine whether the charging conditions are met.

[0011] The charging gun determines a first indication information, and the vehicle terminal determines a second indication information; wherein, the first indication information is used to indicate whether the charging gun and / or charging box meet the charging conditions; and the second indication information is used to indicate whether the vehicle terminal meets the charging conditions.

[0012] When the first indication information indicates that the charging gun and the charging box meet the charging conditions, and the second indication information indicates that the vehicle terminal meets the charging conditions, the charging gun sends the first indication information to the charging box; the vehicle terminal sends the second indication information to the charging box.

[0013] The charging box performs a charging operation according to the first instruction information and the second instruction information;

[0014] When the charging gun detects the start of charging, it sends a first control command to the locking module of the charging gun to control the locking module to lock the charging gun and the vehicle terminal.

[0015] A further improvement is as follows: the control method further includes: real-time detection of the charging gun's status; when an abnormality is detected in the charging gun, a second control command is sent to the locking module to control the locking module to unlock the charging gun and the vehicle terminal.

[0016] A further improvement is as follows: When an abnormality is detected in the charging gun, before sending the second control command to the locking module, the method further includes:

[0017] The charging gun sends an abnormal message to the charging box;

[0018] The charging box determines the type of abnormality based on the abnormal information and adjusts the charging current accordingly.

[0019] A further improvement is as follows: When an abnormality is detected in the charging gun, before sending the second control command to the locking module, the method further includes:

[0020] The charging gun sends an abnormal message to the charging box;

[0021] The charging box determines the type of abnormality based on the abnormal information.

[0022] The charging case sends the type of error to the mobile terminal;

[0023] The mobile terminal generates third indication information based on the anomaly type, wherein the third indication information is used to indicate an anomaly response strategy; the anomaly response strategy includes: adjusting the charging current, stopping charging, and / or unlocking the device.

[0024] A further improvement is that the control method further includes: real-time detection of charging status information;

[0025] When an abnormal charging status is detected, a location request is sent to the mobile terminal to obtain the mobile terminal's location information.

[0026] Determine the alarm method based on the location information of the mobile terminal;

[0027] The abnormal alarm methods include: charging gun audible and visual alarm, charging box audible and visual alarm, and / or mobile terminal audible, visual, and vibration alarm.

[0028] A further improvement is proposed: the charging status information includes: charging voltage, charging current, and charging temperature of the charging box, charging gun, and vehicle terminal;

[0029] When the charging voltage is less than 185V or greater than 264V, a charging voltage abnormality message is generated.

[0030] When the charging temperature exceeds 80°C, an abnormal charging temperature information is generated.

[0031] When the charging current is greater than twice the rated charging current, an abnormal charging current information is generated.

[0032] To address the problems existing in the prior art, the present invention provides a safe charging control system, the control system comprising: a charging gun, a charging box, and an on-board terminal;

[0033] Before charging, the charging gun, charging box and vehicle terminal perform a status self-check to determine whether the charging conditions are met.

[0034] The charging gun determines first indication information; the first indication information is used to indicate whether the charging gun and / or the charging box meet the charging conditions.

[0035] The vehicle-mounted terminal determines the second indication information; the second indication information is used to indicate whether the vehicle-mounted terminal meets the charging conditions.

[0036] When the first indication information indicates that the charging gun and the charging box meet the charging conditions, and the second indication information indicates that the vehicle terminal meets the charging conditions, the charging gun sends the first indication information to the charging box.

[0037] When the first indication information indicates that the charging gun and the charging box meet the charging conditions, and the second indication information indicates that the vehicle terminal meets the charging conditions, the vehicle terminal sends the second indication information to the charging box.

[0038] The charging box performs a charging operation according to the first and second indication information; when the charging gun detects the start of charging, it sends a first control command to the locking module of the charging gun to control the locking module to lock the charging gun and the vehicle terminal.

[0039] A further improvement is as follows: the charging gun has a locking module; when an abnormality is detected in the charging gun, the charging gun sends a second control command to the locking module to control the locking module to unlock the charging gun and the vehicle terminal.

[0040] A further improvement is proposed: the control system further includes a mobile terminal;

[0041] The charging box monitors the charging status information in real time; when an abnormal charging status is detected, it sends a location request to the mobile terminal.

[0042] The mobile terminal sends location information to the charging box.

[0043] The charging box determines the abnormal alarm method based on the location information of the mobile terminal.

[0044] The abnormal alarm methods include: charging gun audible and visual alarm, charging box audible and visual alarm, and / or mobile terminal audible, visual, and vibration alarm.

[0045] A further improvement is proposed: the charging status information includes: charging voltage, charging current, and charging temperature of the charging box, charging gun, and vehicle terminal;

[0046] When the charging voltage is less than 185V or greater than 264V, a charging voltage abnormality message is generated.

[0047] When the charging temperature exceeds 80°C, an abnormal charging temperature information is generated.

[0048] When the charging current is greater than twice the rated charging current, an abnormal charging current information is generated.

[0049] Compared with existing technologies, the present invention has the following beneficial effects: Before charging begins, the charging gun, charging box, and vehicle terminal perform a status self-check to determine whether the charging conditions are met; when the charging gun detects the start of charging, it sends a first control command to the locking module of the charging gun to control the locking module to lock the charging gun and the vehicle terminal; during the charging process, the status of the charging gun is monitored in real time, and when an abnormality is detected, a second control command is sent to the locking module to control the locking module to unlock the charging gun and the vehicle terminal. Before sending the second control command, an abnormality response strategy is executed based on the indication information from the mobile terminal. This solution effectively solves the problem of charging device incompatibility, effectively prevents unexpected charging interruptions, and provides timely feedback on abnormalities, thereby improving the user experience. [Attached Image Description]

[0050] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings:

[0051] Figure 1 This is a schematic diagram of the overall structure of a preferred embodiment of the present invention;

[0052] Figure 2 This is a flowchart of the control method according to a preferred embodiment of the present invention.

Detailed Implementation Methods

[0053] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0054] The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention.

[0055] To address the shortcomings of existing technologies, the present invention aims to provide a safe charging control method. This method is applied to a control system including mains power, a charging box, a charging gun, an in-vehicle terminal, and a mobile terminal. Figure 1 The diagram shows the architecture of the entire charging system. The charging pile consists of a 220V AC power supply, a charging box, and a charging gun, which connect to the vehicle-mounted terminal to charge new energy vehicles. The mobile terminal interacts with the charging pile and vehicle-mounted terminal via Bluetooth or 4 / 5G modules, downloading charging information such as current, voltage, power, charging amount, and unlocking information. It can also upload unlocking information from the mobile terminal to control the unlocking action of the charging gun. The charging box includes an MCU control center module, a charging switch control module, a power calculation module, a fault protection module, a communication processing module, a human-machine interface module, a wireless transmission module, and an antenna. The charging gun includes a charging interface module, a communication processing module, a fingerprint recognition module, an unlocking module, and a locking component module. The control methods include, for example... Figure 2 As shown.

[0056] The charging gun, charging box, and vehicle terminal perform a status self-check to determine whether the charging conditions are met. Preferably, after the charging gun is connected to the vehicle terminal, the charging gun and charging box acquire the configuration information of the vehicle terminal. The configuration information includes a charging voltage configuration value and a charging current configuration value, wherein the configuration values ​​are used to indicate the optimal / rated charging current and charging voltage. Before charging begins, the charging gun, charging box, and vehicle terminal perform a self-check. Preferably, the self-check of the charging gun includes: whether the connection between the charging gun and the vehicle terminal is intact, the range of the charging current passing through the charging gun, the range of the charging voltage applied to the vehicle terminal, and whether the charging current configuration value and charging voltage configuration value of the vehicle terminal are within the charging current range and charging voltage range of the charging gun. If all of the above self-check items are yes, it indicates that the charging gun meets the charging conditions. The self-test of the charging box includes: whether the internal temperature of the charging box is below a specified threshold (e.g., below 80°C), the range of the charging current passing through the charging gun, the range of the charging voltage applied to the vehicle terminal, and whether the configured charging current and voltage values ​​of the vehicle terminal are within the range of the charging current and voltage of the charging gun. If all of the above self-tests are true, it indicates that the charging box meets the charging conditions. The self-test of the vehicle terminal includes: whether the internal temperature of the vehicle terminal is below a specified threshold (e.g., below 50°C, 60°C, etc.), and whether the connection between the vehicle terminal and the charging gun is intact. If all of the above self-tests are true, it indicates that the vehicle terminal meets the charging conditions. Different devices are set with different self-test contents, and all three devices need to meet the self-test conditions simultaneously, thereby improving the stability of the charging process.

[0057] Preferably, when the user inserts the charging gun into the vehicle terminal, the self-test process may also include: the communication module of the charging gun and the communication module of the vehicle terminal interact with each other. The charging gun first performs a self-test to check that the output voltage of the charging gun is normal, the temperature of the charging module is normal, and the no-load current of the charging gun is normal. At the same time, the charging box also performs relevant pre-charging status self-tests, such as checking that parameters such as voltage, temperature, and no-load current are normal. After confirming that both the charging gun and the charging box meet the charging requirements, the communication module of the charging gun then interacts with the communication module of the charging box to communicate relevant test information to confirm that there are no errors. The charging switch module of the charging box is then notified to turn on to start the charging action. At this time, the charging pile enters the normal charging state.

[0058] The charging gun determines a first indication information, and the vehicle terminal determines a second indication information; wherein, the first indication information is used to indicate whether the charging gun and / or charging box meet the charging conditions; and the second indication information is used to indicate whether the vehicle terminal meets the charging conditions.

[0059] When the first indication information indicates that the charging gun and charging box meet the charging conditions, and the second indication information indicates that the vehicle terminal meets the charging conditions, the charging gun sends the first indication information to the charging box; the vehicle terminal sends the second indication information to the charging box; different devices are set with different self-test content, and all three devices need to meet the self-test conditions at the same time. When one condition is not met, an abnormal reminder is immediately sent to the user terminal and the server of the charging station to inform the user and staff of the abnormal information, so as to facilitate subsequent maintenance.

[0060] The charging box performs the charging operation according to the first and second instruction information. In the solution of the present invention, the charging gun, the charging box and the vehicle terminal need to meet the charging conditions at the same time before charging can be carried out. Therefore, the user does not need to confirm in advance before charging, which improves the user experience.

[0061] When the charging gun detects the start of charging, it sends a first control command to the locking module of the charging gun to control the locking module to lock the charging gun and the vehicle terminal. Existing charging guns on the market only have one clip to fix the charging gun to the car charging port, which is easily removed accidentally, causing charging interruption. In this invention, to prevent accidental interruption during charging, the charging gun and the vehicle terminal are locked after charging begins. That is, by setting a locking function at the charging gun port, the problem of accidental removal of the charging gun under normal working conditions can be effectively solved. At the same time, it can also improve the connection reliability between the charging gun and the vehicle terminal during charging.

[0062] Preferably, when the charging station enters normal charging mode, the locking module of the charging gun automatically and physically locks the charging gun and the vehicle terminal together. A pin controlled by a solenoid valve is used to fix the charging gun and the vehicle terminal together. The pin is located on the upper part of the charging gun, and the solenoid valve is connected to the pin on the upper part of the charging gun. The vehicle terminal has a structure adapted to the pin, such as a socket. The solenoid valve is controlled by the control circuit of the charging gun to prevent others from accidentally pulling out the charging gun after the user leaves, causing charging interruption.

[0063] Preferably, when a user needs to end the charging process, they can place their finger on the fingerprint recognition module on the charging gun for fingerprint recognition. Upon successful recognition, the locking module will unlock the physical lock, allowing the user to remove the charging gun and end the charging process. The user's fingerprint is stored in the charging gun's fingerprint processing and recognition module using an initial setting mode.

[0064] Preferably, the control method further includes: real-time detection of the charging gun's status; when an abnormality is detected in the charging gun, sending a second control command to the locking module to control the locking module to unlock the charging gun and the vehicle terminal.

[0065] Preferably, when a charging gun malfunction is detected, before sending a second control command to the locking module, the method further includes:

[0066] The charging gun sends an abnormal message to the charging box;

[0067] The charging case determines the type of abnormality based on the abnormal information and adjusts the charging current accordingly. For example, when the abnormality type is detected as being caused by excessive charging current due to external environmental factors, the charging case can directly control the charging current, such as reducing the charging current to ensure the stability of the charging process.

[0068] Preferably, when a charging gun malfunction is detected, before sending a second control command to the locking module, the method further includes:

[0069] The charging gun sends an abnormal message to the charging box;

[0070] The charging box determines the type of abnormality based on the abnormal information.

[0071] The charging case sends the type of error to the mobile terminal;

[0072] The mobile terminal generates third indication information based on the anomaly type, wherein the third indication information is used to indicate an anomaly response strategy; the anomaly response strategy includes: adjusting the charging current, stopping charging, and / or unlocking the device.

[0073] When the mobile terminal receives the aforementioned anomaly type, it determines the abnormal state based on the anomaly type, such as determining that the current is too high or the temperature exceeds a specified value. It then determines whether charging needs to be stopped. If so, it sends a third instruction message to instruct the charging box to stop charging. This third instruction message also includes a command to allow unlocking. Preferably, the user determines whether to set an unlock command in the third instruction message based on their location and other information. When an unlock command is set in the third instruction message, the charging box unlocks the charging gun and the vehicle terminal after stopping charging.

[0074] Preferably, the control method further includes: real-time detection of charging status information;

[0075] When an abnormal charging status is detected, a location request is sent to the mobile terminal to obtain the mobile terminal's location information.

[0076] Determine the alarm method based on the location information of the mobile terminal;

[0077] The abnormal alarm methods include: charging gun audible and visual alarm, charging box audible and visual alarm, and / or mobile terminal audible, visual, and vibration alarm.

[0078] Additionally, when the charging gun malfunctions, its locking module automatically unlocks, allowing others to promptly unplug the charging gun and end charging. When the charging box's wireless transmission module detects that the user is near the charging gun, the mobile terminal receives malfunction information such as overvoltage, abnormal charging temperature, overcurrent, or battery damage. The charging box will then emit an alarm sound, and the mobile terminal will vibrate or emit an alarm tone to notify the user to unplug the charging gun and address the malfunction. Conversely, if the user is not nearby, the mobile terminal will vibrate or emit an alarm tone to notify the user to unplug the charging gun and address the malfunction.

[0079] Preferably, the charging status information includes: charging voltage, charging current, and charging temperature of the charging box, charging gun, and vehicle terminal;

[0080] When the charging voltage is less than 185V or greater than 264V, a charging voltage abnormality message is generated.

[0081] When the charging temperature exceeds 80°C, an abnormal charging temperature information is generated.

[0082] When the charging current is greater than twice the rated charging current, an abnormal charging current information is generated.

[0083] When the charging status information includes any of the above-mentioned abnormal information, abnormal information is generated.

[0084] The solution provided by this invention involves a self-check of the charging gun, charging box, and vehicle terminal before charging begins to determine if charging conditions are met. When the charging gun detects the start of charging, it sends a first control command to the locking module of the charging gun to lock the charging gun and the vehicle terminal. During charging, the status of the charging gun is monitored in real time. When an abnormality is detected, a second control command is sent to the locking module to unlock the charging gun and the vehicle terminal. Before sending the second control command, an abnormality response strategy is executed based on the indication information from the mobile terminal. This solution effectively solves the problem of charging device incompatibility, prevents unexpected charging interruptions, and provides timely feedback on abnormalities, thereby improving the user experience.

[0085] To address the problems existing in the prior art, the present invention also provides a safe charging control system, which is used to implement the above-described method, such as... Figure 1As shown, the control system consists of a 220V AC power supply, a charging box, and a charging gun, forming the overall charging pile. It connects to the vehicle-mounted terminal to charge new energy vehicles. The mobile terminal interacts with the charging pile via Bluetooth or a 4 / 5G module, downloading charging information such as current, voltage, power, charging amount, and unlocking information. It can also upload its own unlocking information to control the charging gun's unlocking action. The charging box contains an MCU control center module, a charging switch control module, a power calculation module, a fault protection module, a communication processing module, a human-machine interface module, a wireless transmission module, and an antenna. The charging gun includes a charging interface module, a communication processing module, a fingerprint recognition module, an unlocking module, and a locking component module.

[0086] Before charging, the charging gun, charging box, and vehicle terminal perform a status self-check to determine whether the charging conditions are met. Preferably, after the charging gun is connected to the vehicle terminal, the charging gun and charging box acquire the configuration information of the vehicle terminal. The configuration information includes a charging voltage configuration value and a charging current configuration value, wherein the configuration values ​​are used to indicate the optimal charging current and charging voltage. Before charging begins, the charging gun, charging box, and vehicle terminal perform a self-check. Preferably, the self-check of the charging gun includes: whether the connection between the charging gun and the vehicle terminal is intact, the range of the charging current passing through the charging gun, the range of the charging voltage applied to the vehicle terminal, and whether the charging current configuration value and charging voltage configuration value of the vehicle terminal are within the charging current range and charging voltage range of the charging gun. If all of the above self-check items are yes, it indicates that the charging gun meets the charging conditions. The self-test of the charging box includes: whether the internal temperature of the charging box is below a specified threshold, such as below 80°C; the range of the charging current passing through the charging gun; the range of the charging voltage applied to the vehicle terminal; and whether the configured charging current and voltage values ​​of the vehicle terminal are within the range of the charging current and voltage of the charging gun. If all of the above self-tests are true, the charging box meets the charging conditions. The self-test of the vehicle terminal includes: whether the internal temperature of the vehicle terminal is below a specified threshold, such as below 50°C; and whether the connection between the vehicle terminal and the charging gun is intact. If all of the above self-tests are true, the vehicle terminal meets the charging conditions. Different devices are configured with different self-tests, and all three devices must simultaneously meet the self-test conditions, thereby improving the stability of the charging process.

[0087] Preferably, when the user inserts the charging gun into the vehicle terminal, the self-test process may also include: the communication module of the charging gun and the communication module of the vehicle terminal interact with each other. The charging gun first performs a self-test to check that the output voltage of the charging gun is normal, the temperature of the charging module is normal, and the no-load current of the charging gun is normal. At the same time, the charging box also performs relevant pre-charging status self-tests, such as checking that parameters such as voltage, temperature, and no-load current are normal. After confirming that both the charging gun and the charging box meet the charging requirements, the communication module of the charging gun then interacts with the communication module of the charging box to communicate relevant test information to confirm that there are no errors. The charging switch module of the charging box is then notified to turn on to start the charging action. At this time, the charging pile enters the normal charging state.

[0088] The charging gun determines first indication information; the first indication information is used to indicate whether the charging gun and / or the charging box meet the charging conditions.

[0089] The vehicle-mounted terminal determines the second indication information; the second indication information is used to indicate whether the vehicle-mounted terminal meets the charging conditions.

[0090] When the first indication information indicates that the charging gun and the charging box meet the charging conditions, and the second indication information indicates that the vehicle terminal meets the charging conditions, the charging gun sends the first indication information to the charging box.

[0091] When the first indication information indicates that the charging gun and the charging box meet the charging conditions, and the second indication information indicates that the vehicle terminal meets the charging conditions, the vehicle terminal sends the second indication information to the charging box.

[0092] When the first indication information indicates that the charging gun and charging box meet the charging conditions, and the second indication information indicates that the vehicle terminal meets the charging conditions, the charging gun sends the first indication information to the charging box; the vehicle terminal sends the second indication information to the charging box; different devices are set with different self-test content, and all three devices need to meet the self-test conditions at the same time. When one condition is not met, an abnormal reminder is immediately sent to the user terminal and the server of the charging station to inform the user and staff of the abnormal information, so as to facilitate subsequent maintenance.

[0093] The charging box performs the charging operation according to the first and second instruction information. In the solution of the present invention, the charging gun, the charging box and the vehicle terminal need to meet the charging conditions at the same time before charging can be carried out. Therefore, the user does not need to confirm in advance before charging, which improves the user experience.

[0094] When the charging gun detects the start of charging, it sends a first control command to the locking module of the charging gun to control the locking module to lock the charging gun and the vehicle terminal. Existing charging guns on the market only have one clip to fix the charging gun to the car charging port, which is easily removed accidentally, causing charging interruption. In this invention, to prevent accidental interruption during charging, the charging gun and the vehicle terminal are locked after charging begins. That is, by setting a locking function at the charging gun port, the problem of accidental removal of the charging gun under normal working conditions can be effectively solved. At the same time, it can also improve the connection reliability between the charging gun and the vehicle terminal during charging.

[0095] Preferably, when the charging station enters normal charging mode, the locking module of the charging gun automatically and physically locks the charging gun and the vehicle terminal together. A pin controlled by a solenoid valve is used to fix the charging gun and the vehicle terminal together. The pin is located on the upper part of the charging gun, and the solenoid valve is connected to the pin on the upper part of the charging gun. The vehicle terminal has a structure adapted to the pin, such as a socket. The solenoid valve is controlled by the control circuit of the charging gun to prevent others from accidentally pulling out the charging gun after the user leaves, causing charging interruption.

[0096] Preferably, the charging gun has a locking module; when an abnormality is detected in the charging gun, the charging gun sends a second control command to the locking module to control the locking module to unlock the charging gun and the vehicle terminal.

[0097] Preferably, when a user needs to end the charging process, they can place their finger on the fingerprint recognition module on the charging gun for fingerprint recognition. Upon successful recognition, the locking module will unlock the physical lock, allowing the user to remove the charging gun and end the charging process. The user's fingerprint is stored in the charging gun's fingerprint processing and recognition module using an initial setting mode.

[0098] Preferably, when an abnormality is detected in the charging gun, before sending a second control command to the locking module;

[0099] The charging gun sends an abnormal message to the charging box;

[0100] The charging case determines the type of abnormality based on the abnormal information and adjusts the charging current accordingly. For example, when the abnormality type is detected as being caused by excessive charging current due to external environmental factors, the charging case can directly control the charging current, such as reducing the charging current to ensure the stability of the charging process.

[0101] Preferably, when an abnormality is detected in the charging gun, before sending the second control command to the locking module, the charging gun sends an abnormality message to the charging box.

[0102] The charging box determines the type of abnormality based on the abnormal information.

[0103] The charging case sends the type of error to the mobile terminal;

[0104] The mobile terminal generates third indication information based on the anomaly type, wherein the third indication information is used to indicate an anomaly response strategy; the anomaly response strategy includes: adjusting the charging current, stopping charging, and / or unlocking the device.

[0105] When the mobile terminal receives the aforementioned anomaly type, it determines the abnormal state based on the anomaly type, such as determining that the current is too high or the temperature exceeds a specified value. It then determines whether charging needs to be stopped. If so, it sends a third instruction message to instruct the charging box to stop charging. This third instruction message also includes a command to allow unlocking. Preferably, the user determines whether to set an unlock command in the third instruction message based on their location and other information. When an unlock command is set in the third instruction message, the charging box unlocks the charging gun and the vehicle terminal after stopping charging.

[0106] Preferably, the control system further includes: a mobile terminal;

[0107] The charging box, charging gun, and / or vehicle terminal monitor charging status information in real time; when an abnormal charging status is detected, a location request is sent to the mobile terminal.

[0108] The mobile terminal sends location information to the charging box.

[0109] The charging box determines the abnormal alarm method based on the location information of the mobile terminal.

[0110] The abnormal alarm methods include: charging gun audible and visual alarm, charging box audible and visual alarm, and / or mobile terminal audible, visual, and vibration alarm.

[0111] Additionally, when the charging gun malfunctions, its locking module automatically unlocks, allowing others to promptly unplug the charging gun and end charging. When the charging box's wireless transmission module detects that the user is near the charging gun, the mobile terminal receives malfunction information such as overvoltage, abnormal charging temperature, overcurrent, or battery damage. The charging box will then emit an alarm sound, and the mobile terminal will vibrate or emit an alarm tone to notify the user to unplug the charging gun and address the malfunction. Conversely, if the user is not nearby, the mobile terminal will vibrate or emit an alarm tone to notify the user to unplug the charging gun and address the malfunction.

[0112] Preferably, the charging status information includes: charging voltage, charging current, and charging temperature of the charging box, charging gun, and vehicle terminal;

[0113] When the charging voltage is less than 185V or greater than 264V, a charging voltage abnormality message is generated.

[0114] When the charging temperature exceeds 80°C, an abnormal charging temperature information is generated.

[0115] When the charging current is greater than twice the rated charging current, an abnormal charging current information is generated.

[0116] Compared with existing technologies, the safe charging control system provided by this invention performs a status self-check of the charging gun, charging box, and vehicle terminal before charging begins to determine whether the charging conditions are met. When the charging gun detects the start of charging, it sends a first control command to the locking module of the charging gun to control the locking module to lock the charging gun and the vehicle terminal. During the charging process, the status of the charging gun is monitored in real time. When an abnormality is detected, a second control command is sent to the locking module to control the locking module to unlock the charging gun and the vehicle terminal. Before sending the second control command, an abnormality response strategy is executed based on the indication information from the mobile terminal. This solution effectively solves the problem of charging device incompatibility, effectively prevents unexpected charging interruptions, and provides timely feedback on abnormalities, thereby improving the user experience.

[0117] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working process of the system and apparatus described above can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0118] Finally, it should be noted that the above-described embodiments are merely specific implementations of the present invention, used to illustrate the technical solutions of the present invention, and not to limit it. The scope of protection of the present invention is not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments within the technical scope disclosed in the present invention, or make equivalent substitutions for some of the technical features; and these modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of protection of the claims.

Claims

1. A safe charging control method, characterized in that, The control method includes: The charging gun, charging box, and vehicle terminal perform status self-checks to determine if charging conditions are met. The charging gun's self-check includes: whether the connection between the charging gun and the vehicle terminal is intact; the range of the charging current flowing through the charging gun; the range of the charging voltage applied to the vehicle terminal; and whether the configured charging current and voltage values ​​of the vehicle terminal are within the charging current and voltage ranges of the charging gun. The charging box's self-check includes: whether the internal temperature of the charging box is below a specified threshold; the range of the charging current flowing through the charging gun; the range of the charging voltage applied to the vehicle terminal; and whether the configured charging current and voltage values ​​of the vehicle terminal are within the charging current and voltage ranges of the charging gun. The vehicle terminal's self-check includes: whether the internal temperature of the vehicle terminal is below a specified threshold; and whether the connection between the vehicle terminal and the charging gun is intact. The charging gun determines a first indication information, and the vehicle terminal determines a second indication information; wherein, the first indication information is used to indicate whether the charging gun and / or charging box meet the charging conditions; and the second indication information is used to indicate whether the vehicle terminal meets the charging conditions. When the first indication information indicates that the charging gun and the charging box meet the charging conditions, and the second indication information indicates that the vehicle terminal meets the charging conditions, the charging gun sends the first indication information to the charging box; the vehicle terminal sends the second indication information to the charging box. The charging box performs a charging operation according to the first instruction information and the second instruction information; When the charging gun detects the start of charging, it sends a first control command to the locking module of the charging gun to control the locking module to lock the charging gun and the vehicle terminal.

2. The control method as described in claim 1, characterized in that, The control method further includes: real-time detection of the charging gun's status; when an abnormality is detected in the charging gun, sending a second control command to the locking module to control the locking module to unlock the charging gun and the vehicle terminal.

3. The control method as described in claim 2, characterized in that, When a charging gun malfunction is detected, the method further includes the following steps before sending a second control command to the locking module: The charging gun sends an abnormal message to the charging box; The charging box determines the type of abnormality based on the abnormal information and adjusts the charging current accordingly.

4. The control method as described in claim 2, characterized in that, When a charging gun malfunction is detected, the method further includes the following steps before sending a second control command to the locking module: The charging gun sends an abnormal message to the charging box; The charging box determines the type of abnormality based on the abnormal information. The charging case sends the type of error to the mobile terminal; The mobile terminal generates third indication information based on the anomaly type, wherein the third indication information is used to indicate an anomaly response strategy; the anomaly response strategy includes: adjusting the charging current, stopping charging, and / or unlocking the device.

5. The control method as described in claim 1, characterized in that, The control method further includes: real-time detection of charging status information; When an abnormal charging status is detected, a location request is sent to the mobile terminal to obtain the mobile terminal's location information. Determine the alarm method based on the location information of the mobile terminal; The abnormal alarm methods include: charging gun audible and visual alarm, charging box audible and visual alarm, and / or mobile terminal audible, visual, and vibration alarm.

6. The control method as described in claim 5, characterized in that, The charging status information includes: charging voltage, charging current, and charging temperature of the charging box, charging gun, and vehicle terminal. When the charging voltage is less than 185V or greater than 264V, a charging voltage abnormality message is generated. When the charging temperature exceeds 80°C, an abnormal charging temperature information is generated. When the charging current is greater than twice the rated charging current, an abnormal charging current information is generated.

7. A safe charging control system, characterized in that, The control system includes: a charging gun, a charging box, and an in-vehicle terminal; Before charging, the charging gun, charging box, and vehicle terminal perform a status self-check to determine whether the charging conditions are met. The charging gun's self-check includes: whether the connection between the charging gun and the vehicle terminal is intact; the range of the charging current flowing through the charging gun; the range of the charging voltage applied to the vehicle terminal; and whether the configured charging current and voltage values ​​of the vehicle terminal are within the charging current and voltage ranges of the charging gun. The charging box's self-check includes: whether the internal temperature of the charging box is below a specified threshold; the range of the charging current flowing through the charging gun; the range of the charging voltage applied to the vehicle terminal; and whether the configured charging current and voltage values ​​of the vehicle terminal are within the charging current and voltage ranges of the charging gun. The vehicle terminal's self-check includes: whether the internal temperature of the vehicle terminal is below a specified threshold; and whether the connection between the vehicle terminal and the charging gun is intact. The charging gun determines first indication information; the first indication information is used to indicate whether the charging gun and / or the charging box meet the charging conditions. The vehicle-mounted terminal determines the second indication information; the second indication information is used to indicate whether the vehicle-mounted terminal meets the charging conditions. When the first indication information indicates that the charging gun and the charging box meet the charging conditions, and the second indication information indicates that the vehicle terminal meets the charging conditions, the charging gun sends the first indication information to the charging box. When the first indication information indicates that the charging gun and the charging box meet the charging conditions, and the second indication information indicates that the vehicle terminal meets the charging conditions, the vehicle terminal sends the second indication information to the charging box. The charging box performs a charging operation according to the first and second indication information; when the charging gun detects the start of charging, it sends a first control command to the locking module of the charging gun to control the locking module to lock the charging gun and the vehicle terminal.

8. The control system as described in claim 7, characterized in that, The charging gun has a locking module; when an abnormality is detected in the charging gun, the charging gun sends a second control command to the locking module to control the locking module to unlock the charging gun and the vehicle terminal.

9. The control system as described in claim 7, characterized in that, The control system further includes: a mobile terminal; The charging box monitors the charging status information in real time; when an abnormal charging status is detected, it sends a location request to the mobile terminal. The mobile terminal sends location information to the charging box; The charging box determines the abnormal alarm method based on the location information of the mobile terminal. The abnormal alarm methods include: charging gun audible and visual alarm, charging box audible and visual alarm, and / or mobile terminal audible, visual, and vibration alarm.

10. The control system as described in claim 9, characterized in that, The charging status information includes: charging voltage, charging current, and charging temperature of the charging box, charging gun, and vehicle terminal. When the charging voltage is less than 185V or greater than 264V, a charging voltage abnormality message is generated. When the charging temperature exceeds 80°C, an abnormal charging temperature information is generated. When the charging current is greater than twice the rated charging current, an abnormal charging current information is generated.

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