Charging safety management method and device, and electronic equipment

Abstract

The application provides a charging safety management method and device and electronic equipment, real-time monitoring of input current of a charging pile input to a vehicle, when the input current is greater than or equal to a preset current threshold, it can be determined that the charging pile has a pulse large current during charging, then the cumulative number of occurrences and the occurrence frequency of the pulse large current need to be determined to determine whether the pulse large current of the charging pile is a normal phenomenon that occurs occasionally or a fault phenomenon that occurs frequently, then, according to the cumulative number of occurrences and the occurrence frequency, a danger level is determined, and different safety management measures are taken according to different danger levels, which can protect the vehicle battery and electrical devices in the high-voltage loop when the danger level is high, and ensure the smooth charging when the danger level is low, solve the problem of damage to the vehicle battery pack and electrical devices in the high-voltage loop caused by the pulse large current, and avoid causing danger and economic loss during the charging process.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and in particular to a method, device and electronic equipment for controlling charging safety. Background Technology

[0002] Charging piles function similarly to gas pumps at gas stations. They can be fixed to the ground or walls and installed in public buildings (public buildings, shopping malls, public parking lots, etc.) and residential parking lots or charging stations. They can charge various models of electric vehicles according to different voltage levels. The input end of the charging pile is directly connected to the AC power grid, and the output end is equipped with a charging plug for charging electric vehicles. Charging piles generally provide two charging methods: regular charging and fast charging. Users can use a specific charging card (or other methods) to swipe on the human-machine interface provided by the charging pile to perform corresponding operations such as charging mode, charging time, and printing of cost data. The charging pile display shows data such as charging amount, cost, and charging time, providing convenience for electric vehicle charging. However, the brands and quality of charging piles on the market are currently uneven, and the technical solutions also vary. Some charging piles are old, resulting in unstable current output and the "1-to-N" phenomenon, which leads to unstable power distribution between different charging piles. This can easily cause problems such as pulsed high current and high current overcurrent, affecting charging efficiency and potentially damaging the vehicle's battery pack and electrical components in the high-voltage circuit, causing danger and economic losses during the charging process. Summary of the Invention

[0003] In view of this, the purpose of this application is to propose a charging safety control method, device and electronic equipment to solve the problem of pulsed high current damaging vehicle battery packs and electrical components in high voltage circuits, causing danger and economic losses to the charging process.

[0004] To achieve the above objectives, the first aspect of this application provides a method for controlling charging safety, comprising:

[0005] Real-time monitoring of the input current from the charging pile to the vehicle;

[0006] In response to the input current being greater than or equal to a preset current threshold, a pulsed large current is determined to have occurred;

[0007] Determine the cumulative number of occurrences and frequency of the pulsed high current;

[0008] The danger level is determined based on the cumulative number of occurrences and the frequency of occurrence.

[0009] Safety management shall be carried out according to the aforementioned hazard level.

[0010] Optionally, the safety management based on the hazard level includes:

[0011] In response to the danger level being zero, the input current of the charging pile continues to be monitored;

[0012] In response to the danger level being Level 1, an alarm will be triggered.

[0013] In response to the danger level being level two, a notification alarm will be triggered after the charging power is cut off, and the charging pile will be marked as a faulty charging pile.

[0014] The hazard levels are ranked from low to high as Level 2, Level 1, and Level 0, and the higher the hazard level, the greater the charging safety risk.

[0015] Optionally, the safety management based on the hazard level further includes:

[0016] Record the number of marked faulty charging piles within the same charging station;

[0017] In response to the number of markers being greater than or equal to a preset threshold, the charging station is marked as a faulty charging station.

[0018] Optionally, the safety management based on the hazard level further includes:

[0019] The vehicle's current location is monitored in real time, and the distance between the vehicle and the faulty charging station is determined based on the current location.

[0020] In response to the distance being less than or equal to a preset threshold distance, a charging hazard warning is issued for the faulty charging station.

[0021] Optionally, the response to the danger level being level one, including issuing an alarm notification, includes:

[0022] In response to the danger level being Level 1, a notification message is sent to the user terminal via a remote communication terminal;

[0023] In response to the danger level being Level 1, the location information, product information, and fault information of the faulty charging pile are sent to the cloud via a remote communication terminal.

[0024] In response to the danger level being Level 1 and the vehicle being powered on, an alarm will be displayed on the central control screen.

[0025] Optionally, determining the danger level based on the cumulative number of occurrences and the frequency of occurrence includes:

[0026] A first danger score is determined based on the cumulative number of occurrences, and a second danger score is determined based on the frequency of occurrence.

[0027] The total score is determined based on the first hazard score and the second hazard score;

[0028] The danger level is determined based on the total score.

[0029] Optionally, determining a first danger score based on the cumulative number of occurrences and a second danger score based on the frequency of occurrence includes:

[0030] In response to the cumulative occurrence being greater than or equal to a preset threshold, a preset first score is determined as the first danger score;

[0031] In response to the cumulative occurrence count being less than the count threshold, a preset second score is determined as the first danger score;

[0032] In response to the occurrence frequency being greater than or equal to a preset frequency threshold, a preset third score is determined as the second danger score;

[0033] In response to the occurrence frequency being less than the frequency threshold, a preset fourth score is determined as the second danger score.

[0034] Optionally, determining the danger level based on the total score includes:

[0035] In response to the total score being the sum of the second score and the fourth score, the danger level is determined to be level zero;

[0036] In response to the total score being the sum of the first score and the fourth score, the danger level is determined to be Level 1;

[0037] In response to the total score being the sum of the first score and the third score or the sum of the second score and the third score, the danger level is determined to be Level 2.

[0038] A second aspect of this application provides a charging safety control device, comprising:

[0039] The current monitoring module is configured to monitor the input current from the charging pile to the vehicle in real time.

[0040] The high current detection module is configured to: determine the occurrence of a pulsed high current in response to the input current being greater than or equal to a preset current threshold;

[0041] The statistics module is configured to: determine the cumulative number of occurrences and frequency of the pulsed high current;

[0042] The risk level confirmation module is configured to determine the risk level based on the cumulative number of occurrences and the frequency of occurrence.

[0043] The safety management module is configured to perform safety management based on the stated hazard level.

[0044] A third aspect of this application provides an electronic device including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor, when executing the program, implements the method provided in the first aspect of this application.

[0045] As can be seen from the above, the charging safety management method, device, and electronic equipment provided in this application can monitor the input current from the charging pile to the vehicle in real time, and understand the changes in the input current of the charging pile in real time. When the input current is greater than or equal to a preset current threshold, it can be determined that a pulsed high current has occurred during the charging process. Then, it is necessary to determine the cumulative number of occurrences and the frequency of the pulsed high current to determine whether the pulsed high current of the charging pile is an occasional normal phenomenon or a frequent fault phenomenon. Then, the danger level is determined according to the cumulative number of occurrences and the frequency of occurrence, and safety management is carried out according to the danger level. Different safety management measures are taken according to different danger levels. When the danger level is high, the vehicle battery and electrical components in the high-voltage circuit can be protected, and when the danger level is low, the charging can be carried out smoothly. While ensuring safe charging, it can also prevent the pulsed high current from damaging the vehicle battery pack and electrical components in the high-voltage circuit, and avoid danger and economic loss during the charging process. Attached Figure Description

[0046] To more clearly illustrate the technical solutions in this application or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0047] Figure 1 This is a schematic diagram of a charging model according to an embodiment of this application;

[0048] Figure 2 A flowchart illustrating the charging safety control method according to an embodiment of this application;

[0049] Figure 3 This is a flowchart illustrating a safety management process based on hazard level, as described in an embodiment of this application.

[0050] Figure 4 This is another flowchart illustrating safety management based on hazard level according to an embodiment of this application;

[0051] Figure 5 This is another flowchart illustrating safety management based on hazard level according to an embodiment of this application;

[0052] Figure 6 This is a flowchart illustrating the alarm notification process in an embodiment of this application.

[0053] Figure 7 A flowchart for determining the hazard level in the embodiments of this application;

[0054] Figure 8 This is a schematic diagram of the structure of the charging safety control device according to an embodiment of this application;

[0055] Figure 9 This is a schematic diagram of the structure of an electronic device according to an embodiment of this application. Detailed Implementation

[0056] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with specific embodiments and the accompanying drawings.

[0057] It should be noted that, unless otherwise defined, the technical or scientific terms used in the embodiments of this application should have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," and similar terms used in the embodiments of this application do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are only used to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0058] As shown in the background section, a charging pile typically consists of a billing control unit, a card reader, an LCD display, a wireless module, a power module, a meter, and an on-board charger. The on-board charger provides AC / DC conversion, while the other devices provide billing, communication, and human-machine interaction functions. In other words, the charging model for vehicles via a charging pile generally includes three parts, such as... Figure 1 As shown, the left side is the off-board charger (i.e., charging pile), and the right side is the electric vehicle. The two are connected through the vehicle's plug and socket. It can be clearly seen that the charging model mainly consists of three parts: the "off-board charger," the "vehicle interface," and the "electric vehicle." Therefore, charging abnormalities are basically caused by these three parts. The embodiments of this application mainly address the abnormal situation of pulsed high current during the charging process caused by the off-board charger.

[0059] The charging safety management method provided in this application provides a method for real-time monitoring of the charging pile's input current. This allows for real-time understanding of changes in the input current. When the input current is greater than or equal to a preset current threshold, it can be determined that a large pulse current has occurred during the charging process. The method then needs to determine the cumulative number and frequency of these large pulse currents to classify them as either an occasional, normal phenomenon or a frequent fault. Furthermore, the method determines the hazard level based on the cumulative number and frequency of occurrences and implements safety management measures accordingly. Different safety management measures are taken for different hazard levels. This approach protects the vehicle battery and electrical components in the high-voltage circuit when the hazard level is high, and ensures smooth charging when the hazard level is low. While ensuring safe charging, this method also addresses the issue of large pulse currents damaging the vehicle battery pack and electrical components in the high-voltage circuit, preventing danger and economic losses during the charging process.

[0060] In some embodiments, such as Figure 2 As shown, a charging safety control method includes:

[0061] Step 100: Monitor the input current from the charging pile to the vehicle in real time.

[0062] In some alternative embodiments, since pulsed high current does not occur at all times and the time from the appearance to the disappearance of pulsed high current is extremely short, in order to avoid missed detection when pulsed high current occurs, it is necessary to monitor the input current from the charging pile to the vehicle in real time from the start of charging to ensure that no pulsed high current is missed during the entire process from the start to the end of charging.

[0063] Step 200: In response to the input current being greater than or equal to a preset current threshold, a pulsed large current is determined to have occurred.

[0064] In some alternative embodiments, pulse currents within the normal range generally do not harm the battery or electrical components in the circuit. On the contrary, some charging devices use pulse charging methods to charge the battery, which may produce better charging results. However, when the maximum amplitude of the pulse current generated within a short period of time exceeds the normal range, it will lead to overcharging of the battery and overload of electrical components in the high-voltage circuit. Therefore, monitoring the pulse currents that are harmful to the battery and electrical components can effectively prevent overcharging of the battery and overload of electrical components. Thus, a preset current threshold is used to distinguish between ordinary pulse currents with less harm and pulse currents with greater harm. When the detected input current is greater than or equal to the preset current threshold, it is determined that a pulse current has occurred.

[0065] Step 300: Determine the cumulative number of occurrences and frequency of the pulsed high current.

[0066] In some alternative embodiments, since the duration of pulsed high current is short, and batteries and electrical components generally have some self-protection mechanisms, and even normal charging piles may experience pulsed high current due to the influence of other faulty charging piles, it is not possible to determine whether a charging pile is engaging in dangerous charging behavior simply by whether a pulsed high current occurs. Therefore, this application embodiment further measures the danger level of pulsed high current by statistically analyzing the cumulative number of occurrences of the pulsed high current during each charging process and the frequency of occurrence within a certain time period. The cumulative number of occurrences can characterize whether the pulsed high current generated by the charging pile is an accidental event or a genuine fault, and the danger level can be assessed by using a pre-set threshold number. The frequency of occurrence more clearly characterizes the danger level of the fault than the cumulative number of occurrences, because multiple pulsed high currents in a short period of time will cause multiple overcharging of the battery and multiple overloads of electrical components in a short period of time. Frequent overcharging is more likely to shorten the battery's lifespan and even directly cause battery damage, while frequent overloading is more likely to cause damage to electrical components and affect the normal charging of the battery. Therefore, the cumulative number of occurrences and the frequency of occurrence are important data indicators for judging the danger level.

[0067] Step 400: Determine the danger level based on the cumulative number of occurrences and the frequency of occurrence.

[0068] In some optional embodiments, to make the classification of hazard levels more explicit and clear, a scoring strategy can be used to determine the hazard level. The scoring strategy determines a first hazard score based on the cumulative occurrence count and a second hazard score based on the frequency of occurrence. Then, the sum of the first and second hazard scores is calculated to obtain a total score, and the hazard level is determined based on the total score. The cumulative occurrence count of the pulsed high current can characterize whether the pulsed high current generated by the charging pile is an accidental event or a genuine fault. A pre-set threshold for the number of occurrences can be used to assess the hazard level. For example, if the cumulative occurrence count is greater than or equal to the preset threshold, the first hazard score is determined to be 1 point (i.e., there is a risk of excessive cumulative occurrences of pulsed high current); otherwise, the first hazard score is determined to be 0 points (i.e., there is no risk of excessive cumulative occurrences of pulsed high current). However, the contribution of the cumulative occurrence count to the determination of the hazard level is relatively small, so the maximum value of the first score is generally less than the maximum value of the second hazard score. The frequency of occurrence more clearly characterizes the degree of fault danger than the cumulative occurrence count because… Multiple pulsed high currents within a short period can cause repeated overcharging of the battery and overloading of electrical components. Frequent overcharging can shorten battery life and even directly damage the battery. Frequent overloading can damage electrical components and affect normal battery charging. A pre-set frequency threshold can be used to assess the hazard level. For example, if the frequency is greater than or equal to the preset threshold, the second hazard score is set to 2 points (meaning there is a risk of excessive pulsed high current frequency); otherwise, the second hazard score is set to 0 points (meaning there is no risk of excessive pulsed high current frequency). The frequency of pulsed high currents contributes relatively significantly to the determination of the hazard level, so generally, the maximum value of the second hazard score will be greater than the maximum value of the third hazard score. This setting allows for a clear distinction between specific hazard causes and a relatively clear hazard level classification. The calculated total score includes 0, 1, 2, and 3 points. The higher the total score, the higher the hazard level. A higher hazard level indicates a greater charging safety risk and greater damage to the battery and electrical components.

[0069] Step 500: Implement safety management based on the hazard level.

[0070] In some optional embodiments, to ensure the smooth operation of the charging process while preventing damage to the battery and electrical components, different safety control measures are adopted for different hazard levels. For example, if the total score is zero, the hazard level is determined to be level zero, indicating that there is neither a danger of excessive cumulative occurrence of pulsed high current nor a danger of excessively high frequency of pulsed high current. It is only necessary to continue monitoring the input current of the charging pile, and the monitoring data is synchronously stored in the cloud for later use. If the total score is one point, the hazard level is determined to be level one, indicating that there is a danger of excessive cumulative occurrence of pulsed high current. Fault warnings are issued on the vehicle and user terminals to avoid using the same charging pile in the future. At the same time, the cumulative number of pulsed high current faults, the geographical location of the vehicle (charging pile), and the charging pile manufacturer information are used to generate a corresponding charging pile warning report, which is stored in the cloud for later assessment of the severity of the hazard. If the total score is two or three points, the hazard level is determined to be level two, indicating that there is a danger of excessively high frequency of pulsed high current. Charging can only be stopped by disconnecting the power to avoid the corresponding danger. At the same time, fault warnings are issued on the vehicle and user terminals to avoid using the same charging pile in the future. The system generates a corresponding charging pile early warning report by collecting the cumulative number of pulse high current faults, the geographical location of the vehicle (charging pile), and information on the charging pile manufacturer. This report is then stored in the cloud for easy assessment of the severity of the damage later.

[0071] In summary, the charging safety control method provided in this application monitors the input current of the charging pile in real time. When the input current is greater than or equal to a preset current threshold, it can be determined that a pulsed high current occurs during the charging process. Then, the cumulative number and frequency of occurrence of the pulsed high current are counted to determine whether the pulsed high current is an occasional normal phenomenon or a frequent fault. Furthermore, the danger level is determined based on the cumulative number and frequency of occurrence, and safety control is implemented according to the danger level. Different safety control measures are taken according to different danger levels. When the danger level is high, the vehicle battery and electrical components in the high-voltage circuit can be protected, while when the danger level is low, the charging process can be ensured. This method ensures safe charging while preventing damage to the vehicle battery pack and electrical components in the high-voltage circuit caused by pulsed high current, thus avoiding danger and economic losses during the charging process.

[0072] In some embodiments, the hazard levels are ranked from low to high as Level 2, Level 1, and Level 0, with higher hazard levels indicating greater charging safety risks. Figure 3 As shown, safety management is carried out according to the level of hazard, including:

[0073] Step 510: In response to the danger level being zero, continue to monitor the input current of the charging station and save the monitoring data.

[0074] In some optional embodiments, to ensure the smooth charging process while preventing damage to the battery and electrical components, different safety control measures are adopted for different hazard levels. For example, if the total score is zero, the hazard level is determined to be level zero, indicating that there is neither a danger of excessive cumulative occurrences of high-current pulses nor a danger of excessively high frequency of high-current pulses. Only continued monitoring of the charging pile's input current is required, and the monitoring data is synchronized to the cloud for storage for later use. Specifically, the monitoring data includes the cumulative number of high-current pulse occurrences, frequency of occurrence, real-time monitored input current, vehicle (charging pile) geographical location, charging pile manufacturer information, etc., generating a corresponding charging pile early warning report to facilitate subsequent assessment of the severity of the hazard.

[0075] Step 520: In response to the danger level being Level 1, issue a notification and alarm.

[0076] In some optional embodiments, for example, if the total score is one point, the danger level is determined to be Level 1, indicating that there is a risk of excessive cumulative occurrences of high-current pulses. A fault warning is issued on both the vehicle and user terminals, and the charging station is marked to avoid subsequent use of the same charging station. Simultaneously, the monitoring data is stored in the cloud for later use. For example, the alarm notification includes sending an alarm prompt command via a Telematics Box (T-BOX) installed in the vehicle to an application installed on the in-vehicle display through a Telematics Service Provider (TSP). Upon receiving the alarm prompt command, the application needs to determine if the vehicle is powered on. If the vehicle is powered on, it means there is a user inside, and a pop-up window prompts that there are excessive occurrences of high-current pulses. It can also issue voice prompts such as "High current has occurred multiple times at the charging station, please check," allowing the user to select a charging station based on the alarm prompt. If the vehicle is powered off, it means there is no user inside, and the corresponding prompt is issued upon powering on the vehicle. Simultaneously, an alarm prompt message needs to be sent to the user's terminal. For example, sending a text message to the user's terminal saying "The charging pile has repeatedly experienced high current, please check" is intended to inform the user that the charging pile they are currently using poses a certain risk, and to encourage the user to consider whether to replace the charging pile.

[0077] Step 530: In response to the danger level being Level 2, after the charging power is cut off, an alarm is triggered and the charging station is marked as a faulty charging station.

[0078] In some optional embodiments, for example, if the total score is two or three points, the danger level is determined to be level two, indicating that there is a danger of excessively high frequency of pulsed high current. At this point, simply issuing an alarm notification is insufficient to prevent damage to the battery and electrical components from the high-frequency pulsed high current. The only way to stop the charging pile from harming the battery and electrical components is to cut off the power. Therefore, it is necessary to control the Battery Management System (BMS) to disconnect the connection between the charging pile and the battery, stop charging, protect the battery and electrical components, and mark the charging pile as a faulty charging pile. Simultaneously, notifications and alarms are issued on the vehicle and user terminals to prevent the subsequent use of the same charging pile. A corresponding charging pile warning report is generated by collecting the cumulative number of pulsed high current faults, the vehicle (charging pile) geographical location, and the charging pile manufacturer information, and this report is stored in the cloud for later assessment of the severity of the damage. Cutting off charging is the fastest and most effective way to protect the battery and electrical components in the event of high-frequency pulsed high current. Immediate battery protection can prevent battery damage, extend battery life, save on user repair costs, and improve the user experience.

[0079] In some embodiments, such as Figure 4 As shown, safety management based on hazard level also includes:

[0080] Step 540: Record the number of marked faulty charging piles within the same charging station.

[0081] In some alternative embodiments, because it is necessary to disconnect power to marked faulty charging piles that pose a risk of excessively high frequency of pulsed high current, it is not recommended to use marked faulty charging piles for safety reasons. Therefore, it is necessary to count and record the number of marked faulty charging piles in the same charging station. Since the geographical location of each marked faulty charging pile is stored in the cloud, users can view the marked charging piles at any time to avoid using marked faulty charging piles and protect the battery and electrical components from damage.

[0082] Step 550: In response to the number of tags being greater than or equal to a preset threshold, mark the charging station as a faulty charging station.

[0083] In some optional embodiments, if the number of marked faulty charging piles in the same charging station is greater than or equal to a preset threshold, it indicates that a large number of charging piles in the charging station are at risk of excessively high frequency of pulsed high current. Therefore, the charging station is marked as a faulty charging station so that users can avoid entering the marked faulty charging station when conditions permit, thereby protecting the safety of the battery and electrical components.

[0084] In some embodiments, such as Figure 5As shown, safety management based on hazard level also includes:

[0085] Step 560: Monitor the vehicle's current location in real time and determine the distance between the vehicle and the faulty charging station based on the current location.

[0086] In some alternative embodiments, to prevent users from entering faulty charging stations, the vehicle's current position is monitored in real time during the vehicle's journey, and the distance between the vehicle and each faulty charging station is determined based on the current position (since faulty charging stations are generally charging stations that users frequently visit, the distance is usually not too large, so it is necessary to monitor the distance between each faulty charging station and the vehicle). This distance can effectively prevent users from entering faulty charging stations, thereby ensuring charging safety.

[0087] Step 570: In response to a spacing less than or equal to a preset threshold distance, issue a charging hazard warning for the faulty charging station.

[0088] In some optional embodiments, when the distance between any faulty charging station and the vehicle is less than or equal to a preset threshold distance, it indicates that the user may enter the faulty charging station to charge. Therefore, in order to prevent the user from entering the faulty charging station, a charging hazard warning is given for the faulty charging station, such as a voice broadcast prompt that "there are multiple faulty charging piles in the nearby charging station. It is recommended that you change charging stations to charge." This can effectively prevent the user from entering the faulty charging station and ensure charging safety.

[0089] In some embodiments, such as Figure 6 As shown, in response to a hazard level of Level 1, an alarm will be triggered, including:

[0090] Step 521: In response to a danger level of Level 1, send a notification message to the user terminal via a remote communication terminal.

[0091] In some alternative embodiments, if the total score is one point, the danger level is determined to be Level 1, indicating that there is a risk of excessive cumulative occurrences of high-current pulses, and an alarm message needs to be sent to the user's terminal. For example, sending a text message to the user's terminal saying "High current has occurred multiple times at the charging station, please check" serves to inform the user that the currently used charging station poses a certain danger and to encourage the user to consider whether to replace the charging station.

[0092] Step 522: In response to a hazard level of Level 1, send the location information, product information, and fault information of the faulty charging station to the cloud via a remote communication terminal.

[0093] In some optional embodiments, to facilitate subsequent assessment of the severity of the damage, avoid disputes over faults, and facilitate user accountability, the monitoring data is synchronized to the cloud for storage and later use. Specifically, the monitoring data includes the cumulative number of occurrences and frequency of pulsed high currents, real-time monitored input current, fault information (dangerous faults indicating excessive cumulative occurrences of pulsed high currents or excessively high frequency of pulsed high currents), vehicle (charging pile) location information, and charging pile product information, generating corresponding charging pile early warning reports, etc.

[0094] Step 523: In response to a hazard level of Level 1 and the vehicle being powered on, an alarm is displayed on the central control screen.

[0095] In some optional embodiments, if the total score is one point, the danger level is determined to be Level 1, indicating that there is a risk of excessive cumulative occurrences of high-current pulses. The vehicle's telematics box (T-BOX) sends an alarm notification to an application installed on the in-vehicle display via the telematics service provider (TSP). Upon receiving the alarm notification, the application needs to determine if the vehicle is powered on. If the vehicle is powered on, it means there is a user inside, and a pop-up notification indicating excessive occurrences of high-current pulses is displayed. It can also provide voice prompts such as "High current has occurred multiple times at the charging station, please check," allowing the user to select a charging station based on the alarm prompts. If the vehicle is powered off, it means there is no user inside, and the corresponding notification will be displayed after the vehicle is powered on again. This allows users to understand the safety status of the vehicle's charging process immediately. If damage to the battery or electrical components occurs, the monitoring data synchronized to the cloud can effectively protect the user's rights.

[0096] In some embodiments, such as Figure 7 As shown, the danger level is determined based on the cumulative number of occurrences and the frequency of occurrence, including:

[0097] Step 410: Determine the first danger score based on the cumulative number of occurrences, and determine the second danger score based on the frequency of occurrence.

[0098] In some alternative embodiments, a first hazard score is determined based on the cumulative number of occurrences, and a second hazard score is determined based on the frequency of occurrence, including:

[0099] In response to a cumulative occurrence number greater than or equal to a preset threshold, a preset first score is determined as the first danger score;

[0100] In response to the cumulative occurrence being less than the threshold, the preset second score is determined as the first danger score;

[0101] In response to an occurrence frequency greater than or equal to a preset frequency threshold, a preset third score is determined as the second hazard score;

[0102] In response to an occurrence frequency lower than a frequency threshold, a preset fourth score is determined as the second hazard score.

[0103] To make the hazard level classification more explicit and clear, a scoring strategy can be used to determine the hazard level. This strategy determines a first hazard score based on the cumulative number of occurrences and a second hazard score based on the frequency of occurrence. For example, the cumulative number of occurrences of pulsed high current can characterize whether the pulsed high current generated by the charging pile is an accidental event or a genuine malfunction. A pre-set threshold can be used to assess the hazard level. If the cumulative number of occurrences is greater than or equal to the preset threshold, a preset first score of 1 is assigned as the first hazard score (i.e., there is a risk of excessive cumulative occurrences of pulsed high current); otherwise, a preset second score of 0 is assigned as the first hazard score (i.e., there is no risk of excessive cumulative occurrences of pulsed high current). However, the contribution of the cumulative number of occurrences to the determination of the hazard level is relatively small, so generally the maximum value of the first score will be less than the maximum value of the second hazard score; while the frequency of occurrence is more significant than the cumulative number of occurrences. The frequency of high-current pulses indicates the severity of the fault. Multiple high-current pulses within a short period can cause repeated overcharging of the battery and overloading of electrical components. Frequent overcharging can shorten battery life and even directly damage the battery, while frequent overloading can damage electrical components and affect normal battery charging. A pre-set frequency threshold can be used to assess the hazard level. For example, if the frequency is greater than or equal to the preset threshold, a preset third score of 2 is assigned as the second hazard score (i.e., there is a risk of excessively frequent high-current pulses). Otherwise, a preset fourth score of 0 is assigned as the second hazard score (i.e., there is no risk of excessively frequent high-current pulses). The frequency of high-current pulses contributes significantly to the determination of the hazard level, so generally, the maximum value of the second hazard score will be greater than the maximum value of the third hazard score. This setting allows for a clear distinction between specific hazard causes and a relatively clear classification of hazard levels.

[0104] Step 420: Determine the total score based on the first hazard score and the second hazard score.

[0105] In some alternative embodiments, the first hazard score and the second hazard score are calculated to obtain a total score. For example, if the first score is one point, the third score is two points, and the second and fourth scores are zero points, the calculated total score includes 0 points, 1 point, 2 points, and 3 points.

[0106] Step 430: Determine the danger level based on the total score.

[0107] In some alternative embodiments, the hazard level is determined based on the total score, including:

[0108] Based on the total score being the sum of the second and fourth scores, the hazard level is determined to be level zero;

[0109] Based on the total score being the sum of the first and fourth scores, the hazard level is determined to be Level 1;

[0110] In response to a total score that is the sum of the first and third scores or the sum of the second and third scores, the hazard level is determined to be Level 2.

[0111] The higher the total score, the higher the hazard level and the greater the charging safety risk. A total score of 0 indicates a level zero fault, meaning there is almost no fault. A total score of 1 indicates an excessive number of pulsed high current events, classifying it as level one. A total score of 2 indicates an excessively high frequency of pulsed high current events, requiring power disconnection, classifying it as level two. A total score of 3 indicates both excessively high number of pulsed high current events and excessively high frequency of pulsed high current events, requiring power disconnection, classifying it as level two. Clearly defining hazard levels allows for targeted measures to be taken for different levels of hazard, protecting the safety of the charging process.

[0112] It should be noted that the method in this embodiment can be executed by a single device, such as a computer or server. The method can also be applied in a distributed scenario, where multiple devices cooperate to complete the task. In such a distributed scenario, one of these devices may execute only one or more steps of the method in this embodiment, and the multiple devices will interact with each other to complete the method described.

[0113] It should be noted that the above description describes some embodiments of this application. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in a different order than that shown in the above embodiments and still achieve the desired result. Furthermore, the processes depicted in the drawings do not necessarily require a specific or sequential order to achieve the desired result. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0114] Based on the same inventive concept, corresponding to any of the above embodiments, this application also provides a charging safety control device.

[0115] refer to Figure 8The charging safety control device includes:

[0116] The current monitoring module 10 is configured to monitor the input current of the charging pile in real time.

[0117] The high current detection module 20 is configured to: determine the occurrence of a pulsed high current in response to an input current greater than or equal to a preset current threshold;

[0118] The statistics module 30 is configured to: determine the cumulative number of occurrences and frequency of pulsed high current;

[0119] The risk level confirmation module 40 is configured to determine the risk level based on the cumulative number of occurrences and the frequency of occurrence.

[0120] Safety management module 50 is configured to perform safety management based on the level of danger.

[0121] For ease of description, the above devices are described in terms of function, divided into various modules. Of course, in implementing this application, the functions of each module can be implemented in one or more software and / or hardware.

[0122] The apparatus of the above embodiments is used to implement the corresponding charging safety control method in any of the foregoing embodiments, and has the beneficial effects of the corresponding method embodiments, which will not be repeated here.

[0123] Based on the same inventive concept, corresponding to the methods of any of the above embodiments, this application also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the charging safety control method described in any of the above embodiments.

[0124] Figure 9 This embodiment illustrates a more specific hardware structure of an electronic device, which may include a processor 1010, a memory 1020, an input / output interface 1030, a communication interface 1040, and a bus 1050. The processor 1010, memory 1020, input / output interface 1030, and communication interface 1040 are interconnected internally via the bus 1050.

[0125] The processor 1010 can be implemented using a general-purpose CPU (Central Processing Unit), microprocessor, application-specific integrated circuit (ASIC), or one or more integrated circuits, and is used to execute relevant programs to implement the technical solutions provided in the embodiments of this specification.

[0126] The memory 1020 can be implemented in the form of ROM (Read Only Memory), RAM (Random Access Memory), static storage device, dynamic storage device, etc. The memory 1020 can store the operating system and other applications. When the technical solutions provided in the embodiments of this specification are implemented by software or firmware, the relevant program code is stored in the memory 1020 and is called and executed by the processor 1010.

[0127] The input / output interface 1030 is used to connect input / output modules to realize information input and output. Input / output modules can be configured as components within the device (not shown in the figure) or externally connected to the device to provide corresponding functions. Input devices may include keyboards, mice, touchscreens, microphones, various sensors, etc., while output devices may include displays, speakers, vibrators, indicator lights, etc.

[0128] The communication interface 1040 is used to connect a communication module (not shown in the figure) to enable communication between this device and other devices. The communication module can communicate via wired means (such as USB, Ethernet cable, etc.) or wireless means (such as mobile network, WIFI, Bluetooth, etc.).

[0129] Bus 1050 includes a pathway for transmitting information between various components of the device, such as processor 1010, memory 1020, input / output interface 1030, and communication interface 1040.

[0130] It should be noted that although the above-described device only shows the processor 1010, memory 1020, input / output interface 1030, communication interface 1040, and bus 1050, in specific implementations, the device may also include other components necessary for normal operation. Furthermore, those skilled in the art will understand that the above-described device may only include the components necessary for implementing the embodiments of this specification, and not necessarily all the components shown in the figures.

[0131] The electronic devices described above are used to implement the corresponding charging safety control methods in any of the foregoing embodiments, and have the beneficial effects of the corresponding method embodiments, which will not be repeated here.

[0132] Based on the same inventive concept, corresponding to the methods of any of the above embodiments, this application also provides a computer-readable storage medium storing computer instructions for causing the computer to execute the charging safety control method as described in any of the above embodiments.

[0133] The computer-readable medium of this embodiment includes permanent and non-permanent, removable and non-removable media, and information storage can be implemented by any method or technology. Information can be computer-readable instructions, data structures, program modules, or other data. Examples of computer storage media include, but are not limited to, phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, CD-ROM, digital versatile optical disc (DVD) or other optical storage, magnetic tape, magnetic magnetic disk storage or other magnetic storage devices, or any other non-transfer medium that can be used to store information accessible by a computing device.

[0134] The computer instructions stored in the storage medium of the above embodiments are used to cause the computer to execute the charging safety control method as described in any of the above embodiments, and have the beneficial effects of the corresponding method embodiments, which will not be repeated here.

[0135] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of this application (including the claims) is limited to these examples; within the framework of this application, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of the embodiments of this application as described above, which are not provided in the details for the sake of brevity.

[0136] Additionally, to simplify the description and discussion, and to avoid obscuring the embodiments of this application, the well-known power / ground connections to integrated circuit (IC) chips and other components may or may not be shown in the provided drawings. Furthermore, the apparatus may be shown in block diagram form to avoid obscuring the embodiments of this application, and this also takes into account the fact that the details of the implementation of these block diagram apparatuses are highly dependent on the platform on which the embodiments of this application will be implemented (i.e., these details should be fully understood by those skilled in the art). While specific details (e.g., circuits) have been set forth to describe exemplary embodiments of this application, it will be apparent to those skilled in the art that the embodiments of this application can be implemented without these specific details or with variations thereof. Therefore, these descriptions should be considered illustrative rather than restrictive.

[0137] Although this application has been described in conjunction with specific embodiments thereof, many substitutions, modifications, and variations of these embodiments will be apparent to those skilled in the art from the foregoing description. For example, other memory architectures (e.g., dynamic RAM (DRAM)) may be used with the embodiments discussed.

[0138] The embodiments of this application are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the embodiments of this application should be included within the protection scope of this application.

Claims

1. A method for controlling charging safety, characterized in that, include: Real-time monitoring of the input current from the charging pile to the vehicle; In response to the input current being greater than or equal to a preset current threshold, a pulsed large current is determined to have occurred; The cumulative number of occurrences and the frequency of occurrence of the pulsed high current are determined; wherein, the cumulative number of occurrences is the cumulative number of pulsed high currents detected from the start of charging to the current time; and the frequency of occurrence is the ratio of the number of pulsed high currents occurring within a preset time period to the time period itself. The danger level is determined based on the cumulative number of occurrences and the frequency of occurrence. The step of determining the danger level based on the cumulative number of occurrences and the frequency of occurrence includes: A first danger score is determined based on the cumulative number of occurrences, and a second danger score is determined based on the frequency of occurrence. The total score is determined based on the first hazard score and the second hazard score; The risk level is determined based on the total score; Safety management shall be carried out according to the aforementioned hazard level; The safety management based on the hazard level includes: Record the number of marked faulty charging piles within the same charging station; the faulty charging piles are those with a hazard level of level two. In response to the number of markers being greater than or equal to a preset threshold, the charging station is marked as a faulty charging station; The vehicle's current location is monitored in real time, and the distance between the vehicle and the faulty charging station is determined based on the current location. In response to the distance being less than or equal to a preset threshold distance, a charging hazard warning is issued for the faulty charging station.

2. The method according to claim 1, characterized in that, The safety management based on the hazard level includes: In response to the danger level being zero, the input current of the charging pile continues to be monitored; In response to the danger level being Level 1, an alarm will be triggered. In response to the danger level being level two, a notification alarm will be triggered after the charging power is cut off, and the charging pile will be marked as a faulty charging pile. The danger levels are listed from low to high as level zero, level one, and level two, and the higher the danger level, the greater the charging safety risk.

3. The method according to claim 2, characterized in that, The response to a level 1 hazard, including issuing an alarm notification, includes: In response to the danger level being Level 1, a notification message is sent to the user terminal via a remote communication terminal; In response to the danger level being Level 1, the location information, product information, and fault information of the faulty charging pile are sent to the cloud via a remote communication terminal. In response to the danger level being Level 1 and the vehicle being powered on, an alarm will be displayed on the central control screen.

4. The method according to claim 1, characterized in that, The step of determining a first danger score based on the cumulative number of occurrences and a second danger score based on the frequency of occurrence includes: In response to the cumulative occurrence being greater than or equal to a preset threshold, a preset first score is determined as the first danger score; In response to the cumulative occurrence count being less than the count threshold, a preset second score is determined as the first danger score; In response to the occurrence frequency being greater than or equal to a preset frequency threshold, a preset third score is determined as the second danger score; In response to the occurrence frequency being less than the frequency threshold, a preset fourth score is determined as the second danger score.

5. The method according to claim 4, characterized in that, Determining the risk level based on the total score includes: In response to the total score being the sum of the second score and the fourth score, the danger level is determined to be level zero; In response to the total score being the sum of the first score and the fourth score, the danger level is determined to be Level 1; In response to the total score being the sum of the first score and the third score or the sum of the second score and the third score, the danger level is determined to be Level 2.

6. A charging safety control device, characterized in that, include: The current monitoring module is configured to monitor the input current from the charging pile to the vehicle in real time. The high current detection module is configured to: determine the occurrence of a pulsed high current in response to the input current being greater than or equal to a preset current threshold; The statistics module is configured to: determine the cumulative number of occurrences and the frequency of occurrence of the pulsed high current; wherein, the cumulative number of occurrences is the cumulative number of pulsed high currents detected from the start of charging to the current time; and the frequency of occurrence is the ratio of the number of occurrences of pulsed high currents within a preset time period to the time period. The hazard level confirmation module is configured to determine the hazard level based on the cumulative number of occurrences and the frequency of occurrence. The step of determining the danger level based on the cumulative number of occurrences and the frequency of occurrence includes: A first danger score is determined based on the cumulative number of occurrences, and a second danger score is determined based on the frequency of occurrence. The total score is determined based on the first hazard score and the second hazard score; The risk level is determined based on the total score; The safety management module is configured to perform safety management based on the stated hazard level. The safety management based on the hazard level includes: Record the number of marked faulty charging piles within the same charging station; the faulty charging piles are those with a hazard level of level two. In response to the number of markers being greater than or equal to a preset threshold, the charging station is marked as a faulty charging station; The vehicle's current location is monitored in real time, and the distance between the vehicle and the faulty charging station is determined based on the current location. In response to the distance being less than or equal to a preset threshold distance, a charging hazard warning is issued for the faulty charging station.

7. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the program, it implements the method as described in any one of claims 1 to 5.

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