Charging control method and related device

Abstract

The invention provides a charging control method and a related device, and relates to the field of charging piles. According to the method, the first parameter value of the power module in the charging pile is acquired, the second parameter value of the charging gun head is acquired, and the charging anomaly detection result is determined based on the difference value between the first parameter value and the second parameter value, so that charging anomaly detection is realized; therefore, whether the charging pile has potential safety hazards such as electric leakage and electric shock or not can be determined according to the charging abnormality detection result, and when the potential safety hazards exist, safety protection is conveniently and timely performed to protect the charging safety of the charging pile and personnel safety.

Description

Technical Field

[0001] The present application relates to the field of charging piles, and more specifically, to a charging control method and related devices. Background Art

[0002] With the continuous increase in charging demand, the power of current charging piles is getting higher and higher, and the instantaneous voltage is getting higher and higher. The charging safety of charging piles and the protection of personnel must be further strengthened.

[0003] During the charging process of a charging pile, there may be safety hazards such as leakage and electric shock. How to more conveniently detect abnormalities in the charging pile is a technical problem that technical personnel in this field urgently need to solve. Summary of the invention

[0004] In view of this, the present application provides a charging control method and related devices to solve the problem that abnormal charging detection of charging piles is not convenient enough.

[0005] In order to solve the above technical problems, this application adopts the following technical solutions:

[0006] In a first aspect, the present application discloses a charging control method, comprising:

[0007] Obtain a first parameter value of a power module in the charging pile, and obtain a second parameter value of a charging gun head;

[0008] A charging abnormality detection result is determined based on a difference between the first parameter value and the second parameter value.

[0009] Optionally, determining a charging abnormality detection result based on a difference between the first parameter value and the second parameter value includes:

[0010] If the absolute value of the difference between the first parameter value and the second parameter value is greater than a first threshold, it is determined that the abnormal charging detection result is a leakage fault.

[0011] Optionally, after determining the charging abnormality detection result based on the difference between the first parameter value and the second parameter value, the method further includes:

[0012] When the abnormal charging detection result is a leakage fault, the power module is controlled to stop outputting electric energy.

[0013] Optionally, determining a charging abnormality detection result based on a difference between the first parameter value and the second parameter value includes:

[0014] When the absolute value of the difference between the first parameter value and the second parameter value is greater than the second threshold and less than or equal to the first threshold, continuously record the number of consecutive times that the absolute value of the difference is greater than the second threshold and less than or equal to the first threshold, and when the number of consecutive times is greater than the number threshold, determine that the charging abnormality detection result is unhealthy charging;

[0015] or,

[0016] When the absolute value of the difference between the first parameter value and the second parameter value is greater than the second threshold and less than or equal to the first threshold, calculating the ratio of the number of times the absolute value of the difference is greater than the second threshold and less than or equal to the first threshold to the total number of detections, and when the ratio is greater than the ratio threshold, determining that the charging abnormality detection result is unhealthy charging;

[0017] or,

[0018] When the absolute value of the difference between the first parameter value and the second parameter value is greater than the second threshold and less than or equal to the first threshold, the change trend of the absolute value of the difference is determined. When the change trend is an upward trend, the charging abnormality detection result is determined to be a leakage fault.

[0019] Optionally, after determining the charging abnormality detection result based on the difference between the first parameter value and the second parameter value, the method further includes:

[0020] When the abnormal charging detection result is unhealthy charging, the abnormal charging detection result is output.

[0021] Optionally, the first parameter value and the second parameter value are the same value of voltage, current and power.

[0022] In a second aspect, the present application discloses a charging control device, comprising:

[0023] A parameter acquisition module, used to acquire a first parameter value of a power module in a charging pile, and to acquire a second parameter value of a charging gun head;

[0024] The abnormality detection module is used to determine a charging abnormality detection result based on a difference between the first parameter value and the second parameter value.

[0025] Optionally, the anomaly detection module includes:

[0026] A first abnormality analysis submodule is used for continuously recording the number of consecutive times that the absolute value of the difference between the first parameter value and the second parameter value is greater than the second threshold value and less than or equal to the first threshold value when the absolute value of the difference between the first parameter value and the second parameter value is greater than the second threshold value and less than or equal to the first threshold value, and determining that the charging abnormality detection result is unhealthy charging when the consecutive number of times is greater than the number threshold value;

[0027] A second abnormality analysis submodule is used to calculate the ratio of the number of times the absolute value of the difference between the first parameter value and the second parameter value is greater than the second threshold and less than or equal to the first threshold to the total number of detections when the absolute value of the difference between the first parameter value and the second parameter value is greater than the second threshold and less than or equal to the first threshold, and determine that the charging abnormality detection result is unhealthy charging when the ratio is greater than the ratio threshold;

[0028] The third abnormality analysis submodule is used to determine the changing trend of the absolute value of the difference between the first parameter value and the second parameter value when the absolute value of the difference between the first parameter value and the second parameter value is greater than the second threshold and less than or equal to the first threshold, and when the changing trend is an upward trend, determine that the charging abnormality detection result is a leakage fault.

[0029] In a third aspect, the present application discloses a charging pile controller for executing the above-mentioned charging control method.

[0030] In a fourth aspect, the present application discloses a charging pile, including a charging gun head and the above-mentioned charging pile controller.

[0031] Optionally, a first detection device for detecting a first parameter value is provided in the pile body of the charging pile, and a second detection device for detecting a second parameter value is provided in the charging gun head.

[0032] The present application provides a charging control method and related devices. In the present application, a first parameter value of a power module in a charging pile is obtained, and a second parameter value of a charging gun head is obtained. Based on the difference between the first parameter value and the second parameter value, a charging abnormality detection result is determined, thereby realizing charging abnormality detection. The charging abnormality detection result can be used to determine whether the charging pile has safety hazards such as leakage, electric shock, etc. When there are safety hazards, safety protection can be performed conveniently and timely to protect the charging safety of the charging pile and the safety of personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related technologies, the drawings required for use in the embodiments or the related technical descriptions are briefly introduced below. Obviously, the drawings described below are merely embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0034] Figure 1 A flow chart of a charging control method provided in an embodiment of the present application;

[0035] Figure 2 A schematic diagram of a charging pile provided in an embodiment of the present application;

[0036] Figure 3A flowchart of another charging control method provided in an embodiment of the present application;

[0037] Figure 4 A schematic diagram of the structure of a charging control device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0039] With the continuous increase in charging demand, the power of current charging piles is getting higher and higher, and the instantaneous voltage is getting higher and higher. The charging safety of charging piles and the protection of personnel must be further strengthened.

[0040] There may be safety hazards such as leakage and electric shock during charging. When there are safety hazards, it will not only cause property damage, but also pose a great threat to the life safety of operators. When leakage and electric shock occur during high-power or even ultra-high-power charging, the impact is even greater.

[0041] In order to avoid the above problems, the present application can more conveniently detect anomalies during the charging process of the charging pile, so as to promptly perform protective operations such as power off and abnormal prompts when safety hazards such as leakage and electric shock occur, thereby ensuring charging safety and reliability.

[0042] An embodiment of the present application provides a charging control method, the execution subject may be a charging pile controller, and the charging pile controller may be installed inside the charging pile.

[0043] Reference Figure 1 , a charging control method may include:

[0044] S11, obtaining a first parameter value of a power module in the charging pile, and obtaining a second parameter value of a charging gun head.

[0045] Among them, the first parameter value and the second parameter value are both parameter values ​​for a certain operating parameter, and only the detection positions are different. In one implementation, the first parameter value and the second parameter value are the values ​​of the same item among voltage, current and power. Taking the operating parameter as voltage as an example, the first parameter value is the voltage value of the power module, and the second parameter value is the voltage value of the charging gun head.

[0046] Generally speaking, for the power module, under normal charging conditions, the charging pile controller in the charging pile can determine the target output power required by the charging pile according to the load to be charged, such as the needs of the vehicle, and then control the power module in the charging pile to output according to the target output power. Among them, the number of power modules in the charging pile can be multiple, and each power module outputs power according to the control of the charging pile controller, and the sum of the power outputs of all power modules is the target output power. The voltage value of the power module in this embodiment refers to the sum of the voltages output by all power modules. Figure 2 As shown, a first detection device, such as an electric meter 1, is provided in the charging pile body. The electric meter 1 can be used to detect the sum of the voltages output by all power modules, that is, it can be used to detect the voltage output value. At this time, the first parameter value is the voltage output value displayed by the electric meter 1.

[0047] Taking the operating parameter as voltage as an example, the second parameter value can refer to the voltage at the access end of the charging gun head, or it can be the voltage at the output end of the charging gun head. In actual scenarios, if the second parameter value adopts the voltage at the access end of the charging gun head, then the voltage value can take into account the problem of abnormal voltage output caused by aging of the charging gun line between the charging pile and the charging gun head, but it cannot take into account the problem of abnormal voltage output caused by abnormal charging gun head. Therefore, in actual scenarios, when the second parameter value adopts the voltage at the output end of the charging gun head, it can take into account the problem of abnormal voltage output caused by aging of the charging gun line between the charging pile and the charging gun head, and it can also take into account the problem of abnormal voltage output caused by abnormal charging gun head.

[0048] In one implementation, in order to detect the second parameter value, a second detection device 2 can be set in the charging gun head. The second detection device is an electrical parameter detection device. When the operating parameter is voltage, the electrical parameter detection device is a voltage detection device. The voltage detection device can be set at a corresponding position to detect the voltage at the access end of the charging gun head or the voltage at the output end of the charging gun head.

[0049] Similarly, when the operating parameter is current, the ammeter 1 can be used to detect the sum of the currents output by the power module. At this time, the electrical parameter detection device in the charging gun head is a current detection device to detect the current at the access end of the charging gun head or the current at the output end of the charging gun head.

[0050] Similarly, when the operating parameter is power, the electric meter 1 can detect the sum of the powers output by the power modules. Since the sum of the powers output by the power modules should theoretically be the same as the target output power output by the charging pile controller, the first parameter value can also directly use the target output power output by the charging pile controller. However, in actual scenarios, there may be problems with abnormal power output of the power module due to a fault or other reasons. Therefore, there may be a situation where the sum of the powers output by the power modules is different from the target output power output by the charging pile controller. Therefore, it is more accurate to use the electric meter 1 to detect the sum of the powers output by the power modules. At this time, the electrical parameter detection device in the charging gun head is a power detection device to detect the power at the access end of the charging gun head or the power at the output end of the charging gun head.

[0051] In an ideal state, taking the operating parameter as voltage, the voltage value collected by the electric meter 1 and the voltage value detected by the second detection device 2 at the charging gun head should be the same or have a small difference. However, in special cases, such as leakage of the charging pile, aging of the charging gun line, leakage of the charging gun in water, electric shock caused by the charging gun, etc., due to the physical voltage division and current shunting principle, the voltage at the electric meter 1 in the charging pile body and the voltage detected by the second detection device 2 in the charging gun head will be inconsistent. The same is true for current and power.

[0052] Therefore, this embodiment utilizes this working principle to perform periodic sampling of the voltage, current or power of the second detection device 2 at the charging gun head, and returns the sampled value to the charging pile controller. The charging pile controller compares the sampled value with the corresponding data collected by the electric meter 1 in the charging pile body to determine whether there is an emergency situation such as leakage or accidental electric shock.

[0053] It should be noted that the collected data can be one of voltage, current or power. If only voltage comparison is performed, only two voltage values ​​need to be collected. If only current comparison is performed, only two current values ​​need to be collected. If only power comparison is performed, only two power values ​​need to be collected.

[0054] S12: Determine a charging abnormality detection result based on a difference between the first parameter value and the second parameter value.

[0055] Specifically, according to the above discussion, in special circumstances such as leakage of the charging pile, aging of the charging gun line, leakage of the charging gun due to water, and electric shock caused by the charging gun, the voltage at the electric meter 1 in the charging pile body and the voltage detected by the second detection device 2 in the charging gun head will be inconsistent due to the physical voltage division and current shunting principles. Therefore, in this embodiment, the difference between the first parameter value and the second parameter value is used to perform charging abnormality detection of the charging pile to determine whether there is a voltage abnormality, so as to further determine whether there are safety hazards such as leakage and electric shock.

[0056] In this embodiment, a first parameter value of a power module in the charging pile is obtained, and a second parameter value of a charging gun head is obtained. Based on the difference between the first parameter value and the second parameter value, a charging abnormality detection result is determined, thereby realizing charging abnormality detection. The charging abnormality detection result can be used to determine whether the charging pile has safety hazards such as leakage and electric shock. When there are safety hazards, safety protection can be performed conveniently and promptly to protect the charging safety of the charging pile and the safety of personnel.

[0057] In another implementation of the present application, there are multiple implementations of "determining a charging abnormality detection result based on the difference between the first parameter value and the second parameter value", which are now introduced one by one.

[0058] 1. The first implementation method.

[0059] If the absolute value of the difference between the first parameter value and the second parameter value is greater than a first threshold, it is determined that the abnormal charging detection result is a leakage fault.

[0060] Among them, the first threshold value can be a fixed value or a variable value according to the actual configuration, which is specifically configured according to the scenario. Taking the detection voltage as an example, under normal circumstances, the output power of the charging pile is 1000kw. At this time, from the perspective of charging safety and protecting personnel, the first threshold value can be set to 20V. If the absolute value of the difference between the first parameter value and the second parameter value is greater than 20V, if it is leakage, the voltage is more dangerous to the human body. When the absolute value of the difference is greater than 20V, it is considered that a leakage fault occurs, and the abnormal charging detection result is determined to be a leakage fault, and the fault is reported immediately.

[0061] For example, taking the detection voltage as an example, the first parameter value, such as U1, is 50V, and the second parameter value, such as U2, is 25V, then |U1-U2|=25V>20V. At this time, the charging fault will be reported, and a red light can also be turned on as a warning.

[0062] In another implementation of the present invention, when the absolute value of the difference between the first parameter value and the second parameter value is greater than the first threshold, there may be leakage, electric shock, etc., and charging needs to be stopped immediately to ensure personnel safety. At this time, the power module can be controlled to stop outputting electric energy. For example, a power stop output instruction can be output to the power module, and the power module recovers power and stops outputting electric energy. At this time, the vehicle stops charging.

[0063] In addition, in order to ensure charging safety, the charging pile is also equipped with an emergency stop button. If the user believes that there is a safety hazard such as leakage or electric shock, he can press the emergency stop button. At this time, the charging pile controller will also control the power module to stop outputting electrical energy and the vehicle will stop charging.

[0064] If |U1-U2|≤the first threshold, such as ≤20V, it is considered that there is no leakage fault and charging can continue.

[0065] In actual scenarios, the first parameter value and the second parameter value may be detected at a fixed time, such as every 20 seconds, and then processed according to the above judgment logic to obtain the corresponding abnormality detection result.

[0066] 2. The second implementation method.

[0067] In the first implementation method described above, a threshold is set, namely the first threshold. If the absolute value of the difference is greater than the first threshold, it is considered that there is a leakage fault. In actual scenarios, for a charging pile, during use, the inconsistency between the first parameter value and the second parameter value caused by aging of the charging pile line, wading and other problems may occur immediately or gradually. For example, as the charging gun line is used for a longer time, the aging degree of the charging gun line continues to increase, resulting in a situation where the difference between the first parameter value and the second parameter value continues to increase, until the absolute value of the difference is greater than the first threshold.

[0068] Therefore, in this embodiment, in order to detect the hidden danger of unhealthy charging in time before the absolute value of the difference is greater than the first threshold, a second threshold is set, and the second threshold is smaller than the first threshold. For example, if the first threshold is 20V, the second threshold can be 10V, 15V, etc.

[0069] When the absolute value of the difference between the first parameter value and the second parameter value is greater than the second threshold and less than or equal to the first threshold, it means that the absolute value of the difference between the first parameter value and the second parameter value is large, but has not reached the level of leakage. At this time, it is considered that the charging is at a stage where there are hidden dangers. Charging can continue, but it is necessary to continue to detect the data statistics of the absolute value of the difference to determine whether there is an unhealthy charging risk based on the changes.

[0070] In another embodiment of the present invention, there are multiple implementations for determining whether there is an unhealthy charging risk based on data statistics, which are now introduced separately. Among them, the multiple implementations are parallel solutions and can be used one by one.

[0071] a. When the absolute value of the difference between the first parameter value and the second parameter value is greater than the second threshold and less than or equal to the first threshold, continuously record the number of consecutive times that the absolute value of the difference is greater than the second threshold and less than or equal to the first threshold. When the number of consecutive times is greater than the number threshold, determine that the charging abnormality detection result is unhealthy charging.

[0072] Specifically, when the absolute value of the difference between the first parameter value and the second parameter value is greater than the second threshold value and less than or equal to the first threshold value for the first time, the first parameter value and the second parameter value can continue to be detected regularly, and then the absolute value of the difference between the first parameter value and the second parameter value is calculated, and the number of times the absolute value of the difference is continuously greater than the second threshold value and less than or equal to the first threshold value is counted. If the number of consecutive times is large, such as greater than the number threshold (according to the actual configuration, such as 5 times), it means that there are continuous charging risks in this charging, and it can be considered as unhealthy charging. Among them, unhealthy charging refers to a state between healthy charging and leakage fault. At this time, the charging safety is less than the safety of healthy charging, but greater than the safety of leakage fault. If the number of consecutive times is small, such as less than the number threshold, it means that this charging may be only a few times abnormal, and does not affect the overall charging safety, so it can be considered as healthy charging.

[0073] In this embodiment, by analyzing the consecutive times of charging anomalies, it is possible to avoid a misdetection problem caused by voltage fluctuation or the like, thereby improving the accuracy of charging anomaly detection.

[0074] b. When the absolute value of the difference between the first parameter value and the second parameter value is greater than the second threshold and less than or equal to the first threshold, calculate the ratio of the number of times the absolute value of the difference is greater than the second threshold and less than or equal to the first threshold to the total number of detections. When the ratio is greater than the ratio threshold, determine that the charging abnormality detection result is unhealthy charging.

[0075] Specifically, after the first occurrence of the situation where the absolute value of the difference between the first parameter value and the second parameter value is greater than the second threshold and less than or equal to the first threshold, the first parameter value and the second parameter value can continue to be detected periodically, the absolute value of the difference between the first parameter value and the second parameter value can be calculated, the number of times the absolute value of the difference is greater than the second threshold and less than or equal to the first threshold can be counted, and the proportion of this number to the total number of detections can be analyzed.

[0076] When calculating the proportion, the total number of regular detection parameter values ​​during the vehicle charging process can be counted, which is called the total detection number N. Then, the number of times the absolute value of the difference is greater than the second threshold and less than or equal to the first threshold is counted, and the ratio of n / N is calculated. If the ratio is greater than the ratio threshold P, that is, n / N>P, it is considered that the number of charging abnormalities is relatively large during the entire charging process, and at this time, the charging abnormality detection result is also considered to be unhealthy charging.

[0077] In this embodiment, by analyzing the proportion of abnormal charging situations, an overall abnormality analysis can be performed from the entire charging process to avoid the problem of false detection caused by a single abnormality.

[0078] In the above embodiment, when the absolute value of the difference between the first parameter value and the second parameter value is greater than the second threshold value and less than or equal to the first threshold value for a large number of consecutive times, or when the ratio of the number of times n when the absolute value of the difference is greater than the second threshold value and less than or equal to the first threshold value to the total number of detections N is large, it is considered that this is unhealthy charging. In an implementation of the present application, in the case of unhealthy charging, in order to ensure charging safety, the charging abnormality detection result can be output.

[0079] For example, during the process of charging a vehicle with a charging pile, the total number of parameter value detections, that is, N, is 20 times, among which, there are 5 times when the absolute value of the difference between the first parameter value and the second parameter value is greater than the second threshold and less than or equal to the first threshold, and the ratio is 1 / 4≤P (such as 50%), then it is considered that it is in a healthy charging state at this time. If the ratio is 1 / 4>P (such as 20%), it is considered that it is in an unhealthy charging state at this time, and the charging abnormality detection result needs to be output.

[0080] When the abnormal charging detection result is specifically output, the abnormal detection result may be reported to the cloud, and the cloud may display the abnormal detection result on the corresponding terminal so that the maintenance personnel can perform the corresponding maintenance operation in time. The cloud may also send the abnormal detection result to the maintenance personnel's mobile phone or other devices through the service provider, so that the maintenance personnel can check the message in time, perform the corresponding maintenance operation, and check, maintain, and troubleshoot the health status of the charging gun line and the charging gun.

[0081] c. When the absolute value of the difference between the first parameter value and the second parameter value is greater than the second threshold value and less than or equal to the first threshold value, determine the change trend of the absolute value of the difference; when the change trend is an upward trend, determine that the charging abnormality detection result is a leakage fault.

[0082] In this embodiment, when the absolute value of the difference between the first parameter value and the second parameter value is greater than the second threshold and less than or equal to the first threshold for the first time, the parameter value detection continues, and the change trend of the absolute value of the difference is analyzed. If the change trend of the absolute value of the difference is an upward trend, it means that in the process of gradually increasing the output power of the charging pile, the increased output power is leaked and not output to the vehicle. Therefore, it is considered that there is a leakage fault at this time, and the power module can be controlled to stop outputting electrical energy.

[0083] In this embodiment, by analyzing the change trend of the absolute value of the difference, it is possible to analyze whether there is a leakage, so that the power-off operation can be performed in time.

[0084] From the above, it can be seen that the above three parallel implementation methods are used to detect whether the charging pile is in an unhealthy charging state or there is a leakage fault, so as to determine whether the voltage output by the charging pile is lost during the transmission process and whether it is actually used for normal charging, so as to perform corresponding maintenance for emergencies such as unhealthy charging, leakage, electric shock, etc., and achieve safe charging.

[0085] In addition, the health status of the charging gun line and the charging gun is analyzed by analyzing the charging abnormality ratio, the number of consecutive charging abnormalities, or the charging abnormality trend, thereby determining the charging status.

[0086] In another implementation of the present application, the charging abnormality ratio, the number of consecutive charging abnormalities, or the charging abnormality trend can be displayed in the form of a chart to intuitively display the charging situation, such as using a charging health curve. In the charging health curve, the horizontal axis is the time point of each detection, and the vertical axis is the absolute value of the difference between the first parameter value and the second parameter value. The graph can use a broken line to display the change trend of the absolute value of the difference to intuitively reflect the charging safety risk.

[0087] In another implementation of the present application, two items of voltage, current and power can also be detected simultaneously, such as detecting the voltage value and current value output by the electric meter 1 at the same time, and detecting the voltage value and current value by using an electrical parameter detection device at the same time. Calculate the difference in voltage values ​​and calculate the difference in current values. When the absolute value of any difference is greater than the first threshold, or the absolute value of any difference is greater than the second threshold and less than or equal to the first threshold, and its changing trend is an upward trend, it is considered that there is a leakage fault. When the absolute value of any difference is greater than the second threshold and less than or equal to the first threshold, and its proportion is abnormal or the number of consecutive times is large, it is considered that the charging pile is not charging healthily, so as to avoid the problem of false detection caused by detecting only one parameter.

[0088] In one embodiment, the voltage, current and power can also be detected simultaneously, such as detecting the voltage value, current value and power value output by the electric meter 1 at the same time, and detecting the voltage value, current value and power value by using an electrical parameter detection device at the same time. The voltage value difference, the current value difference and the power difference are calculated. When the absolute value of any difference is greater than the first threshold, or the absolute value of any difference is greater than the second threshold and less than or equal to the first threshold, and the change trend is an upward trend, it is considered that there is a leakage fault. When the absolute value of any difference is greater than the second threshold and less than or equal to the first threshold, and its proportion is abnormal or the number of consecutive times is large, it is considered that the charging pile is not charging healthily, so as to avoid the problem of false detection caused by detecting only one parameter.

[0089] In this embodiment, the corresponding detection equipment is buried in the charging gun head, and the parameters of the charging gun head are sampled regularly, and compared with the corresponding parameters of the power module inside the charging pile body. The current charging state is predicted to be normal through the absolute value of the difference, the abnormal proportion, the number of consecutive times, etc., so as to determine whether there is a leakage fault or an unhealthy charging situation. In addition, charging safety judgment is performed based on at least two of the voltage, current and power, which can avoid the problem of misjudgment caused by inaccurate single data detection.

[0090] As can be seen from the above, determining the charging abnormality detection result based on the difference between the first parameter value and the second parameter value includes the following steps:

[0091] S21. Determine whether the absolute value of the difference between the first parameter value and the second parameter value is greater than a second threshold; if so, execute step S22.

[0092] S22: Determine whether the absolute value of the difference between the first parameter value and the second parameter value is less than or equal to a first threshold value; if so, execute step S23, S24 or S25. If not, execute step S26.

[0093] S23. Continue to record the number of consecutive times that the absolute value of the difference is greater than the second threshold and less than or equal to the first threshold. If the number of consecutive times is greater than the number threshold, determine that the charging abnormality detection result is unhealthy charging.

[0094] S24. Calculate the ratio of the number of times the absolute value of the difference is greater than the second threshold and less than or equal to the first threshold to the total number of detections. If the ratio is greater than the ratio threshold, determine that the charging abnormality detection result is unhealthy charging.

[0095] S25. Determine a change trend of the absolute value of the difference, and when the change trend is an upward trend, determine that the abnormal charging detection result is a leakage fault.

[0096] S26. Determine that the abnormal charging detection result is a leakage fault.

[0097] It should be noted that for the specific implementation of steps S21-S26 in this embodiment, please refer to the above corresponding instructions.

[0098] Based on the above-mentioned embodiment of the charging control method, another embodiment of the present application provides a charging control device, referring to Figure 4 , which may include:

[0099] The parameter acquisition module 11 is used to obtain the first parameter value of the power module in the charging pile and the second parameter value of the charging gun head;

[0100] The abnormality detection module 12 is used to determine a charging abnormality detection result based on a difference between the first parameter value and the second parameter value.

[0101] In another implementation of the present application, the anomaly detection module 12 is specifically used for:

[0102] If the absolute value of the difference between the first parameter value and the second parameter value is greater than a first threshold, it is determined that the abnormal charging detection result is a leakage fault.

[0103] Another implementation of the present application further includes:

[0104] The charging control module is used to control the power module to stop outputting electric energy when the abnormal charging detection result is a leakage fault.

[0105] In another implementation of the present application, the anomaly detection module includes:

[0106] A first abnormality analysis submodule is used for continuously recording the number of consecutive times that the absolute value of the difference between the first parameter value and the second parameter value is greater than the second threshold value and less than or equal to the first threshold value when the absolute value of the difference between the first parameter value and the second parameter value is greater than the second threshold value and less than or equal to the first threshold value, and determining that the charging abnormality detection result is unhealthy charging when the consecutive number of times is greater than the number threshold value;

[0107] A second abnormality analysis submodule is used to calculate the ratio of the number of times the absolute value of the difference between the first parameter value and the second parameter value is greater than the second threshold and less than or equal to the first threshold to the total number of detections when the absolute value of the difference between the first parameter value and the second parameter value is greater than the second threshold and less than or equal to the first threshold, and determine that the charging abnormality detection result is unhealthy charging when the ratio is greater than the ratio threshold;

[0108] The third abnormality analysis submodule is used to determine the changing trend of the absolute value of the difference between the first parameter value and the second parameter value when the absolute value of the difference between the first parameter value and the second parameter value is greater than the second threshold and less than or equal to the first threshold, and when the changing trend is an upward trend, determine that the charging abnormality detection result is a leakage fault.

[0109] Another implementation of the present application further includes:

[0110] The abnormality output module is used to output the charging abnormality detection result when the charging abnormality detection result is unhealthy charging.

[0111] In another implementation of the present application, the first parameter value and the second parameter value are the numerical values ​​of the same item among voltage, current and power.

[0112] In the present application, a first parameter value of a power module in the charging pile is obtained, and a second parameter value of a charging gun head is obtained. Based on the difference between the first parameter value and the second parameter value, a charging abnormality detection result is determined, thereby realizing charging abnormality detection. The charging abnormality detection result can be used to determine whether the charging pile has safety hazards such as leakage and electric shock. When there are safety hazards, safety protection can be carried out conveniently and promptly to protect the charging safety of the charging pile and the safety of personnel.

[0113] It should be noted that, for the working process of each module and sub-module in this embodiment, please refer to the corresponding description in the above embodiment, which will not be repeated here.

[0114] A charging pile controller is also provided in an embodiment of the present application for executing the above-mentioned charging control method.

[0115] A charging pile is also provided in an embodiment of the present application, including a charging gun head and the above-mentioned charging pile controller.

[0116] The charging pile body is provided with a first detection device for detecting the first parameter value, and the charging gun head is provided with a second detection device for detecting the second parameter value. For the specific implementation of the first detection device and the second detection device, please refer to the corresponding description in the above embodiment and Figure 2 .

[0117] An embodiment of the present application also provides a computer program product including computer-readable instructions. When the computer-readable instructions are executed on an electronic device, the electronic device implements any charging control method provided in the embodiment of the present application.

[0118] A computer-readable storage medium is also provided in an embodiment of the present application. The storage medium carries one or more computer programs. When the one or more computer programs are executed by an electronic device, the electronic device can implement any charging control method provided in the embodiment of the present application.

[0119] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A charging control method, characterized in that: include: Obtain a first parameter value of a power module in the charging pile, and obtain a second parameter value of a charging gun head; A charging abnormality detection result is determined based on a difference between the first parameter value and the second parameter value.

2. The charging control method according to claim 1, characterized in that: Determining a charging abnormality detection result based on a difference between the first parameter value and the second parameter value includes: If the absolute value of the difference between the first parameter value and the second parameter value is greater than a first threshold, it is determined that the abnormal charging detection result is a leakage fault.

3. The charging control method according to claim 2, characterized in that: After determining a charging abnormality detection result based on the difference between the first parameter value and the second parameter value, the method further includes: When the abnormal charging detection result is a leakage fault, the power module is controlled to stop outputting electric energy.

4. The charging control method according to claim 1, characterized in that: Determining a charging abnormality detection result based on a difference between the first parameter value and the second parameter value includes: When the absolute value of the difference between the first parameter value and the second parameter value is greater than the second threshold and less than or equal to the first threshold, continuously record the number of consecutive times that the absolute value of the difference is greater than the second threshold and less than or equal to the first threshold, and when the number of consecutive times is greater than the number threshold, determine that the charging abnormality detection result is unhealthy charging; or, When the absolute value of the difference between the first parameter value and the second parameter value is greater than the second threshold and less than or equal to the first threshold, calculating the ratio of the number of times the absolute value of the difference is greater than the second threshold and less than or equal to the first threshold to the total number of detections, and when the ratio is greater than the ratio threshold, determining that the charging abnormality detection result is unhealthy charging; or, When the absolute value of the difference between the first parameter value and the second parameter value is greater than the second threshold and less than or equal to the first threshold, the change trend of the absolute value of the difference is determined. When the change trend is an upward trend, the charging abnormality detection result is determined to be a leakage fault.

5. The charging control method according to claim 4, characterized in that: After determining a charging abnormality detection result based on the difference between the first parameter value and the second parameter value, the method further includes: When the abnormal charging detection result is unhealthy charging, the abnormal charging detection result is output.

6. The charging control method according to claim 1, characterized in that: The first parameter value and the second parameter value are the same value of voltage, current and power.

7. A charging control device, characterized in that: include: A parameter acquisition module, used to acquire a first parameter value of a power module in a charging pile, and to acquire a second parameter value of a charging gun head; The abnormality detection module is used to determine a charging abnormality detection result based on a difference between the first parameter value and the second parameter value.

8. The charging control device according to claim 7, characterized in that: The anomaly detection module comprises: A first abnormality analysis submodule is used for continuously recording the number of consecutive times that the absolute value of the difference between the first parameter value and the second parameter value is greater than the second threshold value and less than or equal to the first threshold value when the absolute value of the difference between the first parameter value and the second parameter value is greater than the second threshold value and less than or equal to the first threshold value, and determining that the charging abnormality detection result is unhealthy charging when the consecutive number of times is greater than the number threshold value; A second abnormality analysis submodule is used to calculate the ratio of the number of times the absolute value of the difference between the first parameter value and the second parameter value is greater than the second threshold and less than or equal to the first threshold to the total number of detections when the absolute value of the difference between the first parameter value and the second parameter value is greater than the second threshold and less than or equal to the first threshold, and determine that the charging abnormality detection result is unhealthy charging when the ratio is greater than the ratio threshold; The third abnormality analysis submodule is used to determine the changing trend of the absolute value of the difference between the first parameter value and the second parameter value when the absolute value of the difference between the first parameter value and the second parameter value is greater than the second threshold and less than or equal to the first threshold, and when the changing trend is an upward trend, determine that the charging abnormality detection result is a leakage fault.

9. A charging pile controller, characterized in that: Used to execute the charging control method according to any one of claims 1 to 6.

10. A charging pile, characterized in that: It comprises a charging gun head and a charging pile controller as claimed in claim 9.

11. The charging pile according to claim 10, characterized in that: The charging pile body is provided with a first detection device for detecting a first parameter value, and the charging gun head is provided with a second detection device for detecting a second parameter value.

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