Charging anomaly determination method, device and server

Abstract

The application discloses a charging abnormality determination method, device and server. When a charging gun of a charging pile is inserted into a charging interface of a vehicle to charge the vehicle, charging pile state data collected by the charging interface of the vehicle is acquired. The charging pile state data is compared with reference data, and if a difference between the charging pile state data and the reference data exceeds a preset threshold, it is determined that an abnormality exists when the charging pile charges the vehicle. The charging abnormality determination method, device and server provided by the application can acquire temperature data, power data, current data and voltage data of the charging pile when the charging pile charges the vehicle, and determine whether an abnormality exists when the charging pile charges the vehicle according to a difference between the data and reference data, so that the charging abnormality can be found in time, timely maintenance is facilitated, sudden failure of the charging pile is avoided, and serious accidents such as overcurrent and fire of the vehicle are avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, in particular to a charging abnormality determination method and device and server. BACKGROUND

[0002] A direct-current charging pile is used to convert alternating current into direct current to charge a vehicle with direct current. With the popularity of electric vehicles, the use rate of direct-current charging piles is increasing, and the safety supervision of charging piles is becoming more and more important.

[0003] When a direct-current charging pile fails, there will be an abnormality when charging a vehicle, but this abnormality is difficult to be intuitively found. The prior art monitors whether there is an abnormality when a charging pile charges a vehicle according to operation data uploaded by the charging pile to a charging pile operation platform. However, the direct-current charging pile will upload incorrect operation data to the charging pile operation platform due to its own failure, thereby causing inaccurate judgment of the abnormality when the charging pile charges the vehicle. SUMMARY

[0004] The present application provides a charging abnormality determination method, device and server to solve the technical problem of inaccurate judgment of the abnormality when a charging pile charges a vehicle in the prior art.

[0005] In view of the above problems, the present application is proposed to provide a charging abnormality determination method, device and server that overcome the above problems or at least partially solve the above problems.

[0006] In a first aspect, a charging abnormality determination method is provided, comprising:

[0007] When a charging gun of a charging pile is inserted into a charging interface of a vehicle to charge the vehicle with the charging pile, charging pile state data collected by the charging interface of the vehicle is acquired, the charging pile state data including temperature data, output power data, output current data and output voltage data of the charging pile;

[0008] The charging pile state data is compared with set reference data, and if the difference between the charging pile state data and the reference data exceeds a preset threshold, it is determined that there is an abnormality when the charging pile charges the vehicle.

[0009] Optionally, the set reference data includes reference temperature data, reference power data, reference current data and reference voltage data. Before comparing the charging pile state data with the set reference data, the method further comprises:

[0010] According to the charging history information of a historical charging pile on a historical vehicle, historical temperature data of the charging interface of the historical vehicle is acquired, and the reference temperature data is determined according to the historical temperature data.

[0011] According to the historical charging pile charging history information of the vehicle, the historical output power data of the historical charging pile is obtained, and according to the historical output power data, the reference power data is determined;

[0012] According to the current output by the charging pile to the vehicle through the bus when the charging pile is charging the vehicle, the reference current data is determined;

[0013] According to the voltage output by the charging pile to the vehicle through the bus when the charging pile is charging the vehicle, the reference voltage data is determined.

[0014] Optionally, the charging pile state data collected by the charging interface of the vehicle includes:

[0015] The temperature information collected by the temperature sensor at the connection between the charging interface and the charging gun is obtained as the temperature data of the charging pile;

[0016] The charging pile state data is compared with the set reference data, and if the difference between the charging pile state data and the reference data exceeds the preset threshold, it is determined that there is an abnormality when the charging pile is charging the vehicle, including:

[0017] The temperature data of the charging pile is compared with the reference temperature data, and if the difference between the temperature data of the charging pile and the reference temperature data exceeds the preset temperature difference threshold, it is determined that there is a temperature abnormality when the charging pile is charging the vehicle.

[0018] Optionally, the charging pile state data collected by the charging interface of the vehicle includes:

[0019] The input current information collected by the current sensor at the charging interface is obtained as the output current data of the charging pile;

[0020] The charging pile state data is compared with the set reference data, and if the difference between the charging pile state data and the reference data exceeds the preset threshold, it is determined that there is an abnormality when the charging pile is charging the vehicle, including:

[0021] The output current data of the charging pile is compared with the reference current data, and if the difference between the output current data of the charging pile and the reference current data exceeds the preset current difference threshold, it is determined that there is a current abnormality when the charging pile is charging the vehicle.

[0022] Optionally, the charging pile state data collected by the charging interface of the vehicle includes:

[0023] The input voltage information collected by the voltage sensor at the charging interface is obtained as the output voltage data of the charging pile;

[0024] The charging pile state data is compared with the set reference data, and if the difference between the charging pile state data and the reference data exceeds a preset threshold value, it is determined that there is an abnormality when the charging pile charges the vehicle, including:

[0025] The output voltage data of the charging pile is compared with the reference voltage data, and if the difference between the output voltage data of the charging pile and the reference voltage data exceeds a preset voltage difference threshold value, it is determined that there is a voltage abnormality when the charging pile charges the vehicle.

[0026] Optionally, the charging pile state data collected by the charging interface of the vehicle is obtained, including:

[0027] According to the input current information and the input voltage information, the input power information of the charging interface is determined, and the input power information is used as the output power data of the charging pile;

[0028] The charging pile state data is compared with the set reference data, and if the difference between the charging pile state data and the reference data exceeds a preset threshold value, it is determined that there is an abnormality when the charging pile charges the vehicle, including:

[0029] The output power data of the charging pile is compared with the reference power data, and if the difference between the output power data of the charging pile and the reference power data exceeds a preset power difference threshold value, it is determined that there is a power abnormality when the charging pile charges the vehicle.

[0030] Optionally, after it is determined that the charging pile has an abnormality, it further includes:

[0031] If it is determined that there is an abnormality when the charging pile charges the vehicle for N consecutive times, a warning information is sent to the alarm device, wherein N is an integer greater than 1

[0032] In a second aspect, a charging abnormality determination device is provided, including:

[0033] The data acquisition unit is configured to acquire charging pile state data collected by a charging interface of a vehicle when a charging gun of a charging pile is inserted into the charging interface of the vehicle to charge the vehicle, the charging pile state data including temperature data of the charging pile, output power data of the charging pile, output current data of the charging pile, and output voltage data of the charging pile.

[0034] The data comparison unit is configured to compare the charging pile state data with set reference data, and if the difference between the charging pile state data and the reference data exceeds a preset threshold value, it is determined that there is an abnormality when the charging pile charges the vehicle.

[0035] In a third aspect, the present application also provides a server, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, when the processor executes the computer program, the server executes the method provided in the first aspect.

[0036] In a fourth aspect, the present application also provides a computer readable storage medium, which stores a computer program, when the computer program is executed by a processor, the computer executes the method provided in the first aspect.

[0037] In a fifth aspect, the present application also provides a computer program product, comprising a computer program, when the computer program is executed, the computer executes the method provided in the first aspect.

[0038] The technical scheme provided by the present application has at least the following technical effects or advantages:

[0039] The charging abnormality determination method, device and server provided by the present application can collect temperature data, power data, current data and voltage data of the charging pile when charging the vehicle, and determine whether there is an abnormality when the charging pile charges the vehicle by the difference between the data and the set reference data, so that the charging abnormality can be found in time, which is conducive to timely maintenance, avoids the charging pile from suddenly breaking down and being unable to use, and even causes serious accidents such as vehicle overcurrent and fire.

[0040] The above description is only a summary of the technical scheme of the present application, in order to more clearly understand the technical means of the present application, the specific embodiments of the present application can be implemented according to the content of the description, and in order to make the above and other purposes, characteristics and advantages of the present application more obvious and easy to understand, the following specific embodiments of the present application are described. BRIEF DESCRIPTION OF DRAWINGS

[0041] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The accompanying drawings are included to provide a description of the preferred embodiments and are not meant to limit the present application. Furthermore, the same reference numerals are used throughout the several drawings to designate the same or similar parts. In the drawings:

[0042] Figure 1 The charging abnormality determination method flowchart in the embodiments of the present application;

[0043] Figure 2 The reference data acquisition flowchart in the embodiments of the present application;

[0044] Figure 3 The household direct current charging pile and charging vehicle management schematic diagram in the embodiments of the present application;

[0045] Figure 4A structure diagram of a charging anomaly determination device in an embodiment of the present application is shown in the figure.

[0046] Figure 5 A server schematic diagram in an embodiment of the present application is shown in the figure. DETAILED DESCRIPTION

[0047] Exemplary embodiments of the present disclosure will be described in greater detail below with reference to the accompanying drawings.

[0048] Various structure schematic diagrams according to embodiments of the present application are shown in the accompanying drawings. These diagrams are not drawn to scale, in which certain details are exaggerated for the purpose of clarity and certain details may be omitted. The shapes of various regions, layers shown in the figures and their relative sizes and positional relationships are merely exemplary, and may deviate in actuality due to manufacturing tolerances or technical limitations, and regions / layers with different shapes, sizes, relative positions can be additionally designed by those skilled in the art according to actual needs.

[0049] In order to better understand the above technical solutions, the above technical solutions will be described in detail below in conjunction with specific embodiments, and it should be understood that the embodiments of the present disclosure and the specific features in the embodiments are detailed descriptions of the technical solutions of the present application, and not limitations of the technical solutions of the present application. In the case of no conflict, the technical features in the embodiments of the present application and the embodiments can be combined with each other.

[0050] Existing direct current charging piles are managed through a charging pile operation platform. When a direct current charging pile charges a vehicle, it uploads operation data to the charging pile operation platform through a 4G / 5G network. According to the operation data uploaded by the direct current charging pile, it can be determined whether the direct current charging pile is abnormal and an alarm is given. When the operation data of the direct current charging pile is abnormal due to a fault, it may upload incorrect operation data to the charging pile operation platform, thereby making it difficult to discover the fault of the direct current charging pile in time, thus reducing the safety of the direct current charging pile.

[0051] Taking a household direct current charging pile as an example, many faults may occur in the household direct current charging pile. If the faults of the household direct current charging pile can be warned in advance, the household direct current charging pile can be repaired earlier to avoid being unable to use due to sudden faults, and even cause serious accidents such as vehicle overcurrent and fire.

[0052] Many automobile manufacturers have developed direct current charging piles themselves at present. In this way, the health status of the direct current charging pile can be detected through the linkage between the self-produced vehicles and the matched direct current charging pile, thereby playing a role in early warning of faults.

[0053] Therefore, the present application provides a charging anomaly determination method, please refer to Figure 1 , Figure 1 A charging anomaly determination method flowchart in an embodiment of the present application is shown in the figure.

[0054] S101, when the charging gun of the charging pile is inserted into the charging interface of the vehicle to charge the vehicle, acquiring charging pile state data collected by the charging interface of the vehicle. The charging pile state data includes temperature data, output power data, output current data, and output voltage data of the charging pile.

[0055] S102, comparing the charging pile state data with the set reference data, and if the difference between the charging pile state data and the reference data exceeds the preset threshold, determining that there is an abnormality when the charging pile charges the vehicle.

[0056] It can be understood that the above charging abnormality determination method can be applied to a terminal device and / or a server. The server can be, but is not limited to, a network server, a database server, a cloud server, etc. The terminal device can be, but is not limited to, an office computer.

[0057] In addition, the above vehicle can be an electric vehicle, an electric motorcycle, an electric bus, an electric rail transit vehicle, etc. The above charging pile can charge the electric vehicle, the electric motorcycle, the electric bus, and the electric rail transit vehicle. The charging pile can be a fixed charging pile or a mobile charging pile, and can be a dedicated charging pile for a limited group of people or a shared charging pile for the public. The embodiments of the present application do not limit the specific technology and specific device form used by the charging pile and the vehicle.

[0058] In some optional embodiments, the operation of S101 specifically includes:

[0059] I. Acquire temperature information collected by the temperature sensor at the connection between the charging interface and the charging gun, and use the temperature information as the temperature data of the charging pile.

[0060] II. Acquire input current information collected by the current sensor at the charging interface, and use the input current information as the output current data of the charging pile.

[0061] III. Acquire input voltage information collected by the voltage sensor at the charging interface, and use the input voltage information as the output voltage data of the charging pile.

[0062] IV. Determine the input power information of the charging interface according to the input current information and the input voltage information, and use the input power information as the output power data of the charging pile.

[0063] The set reference data includes reference temperature data, reference power data, reference current data, and reference voltage data. As shown in Figure 2 Before performing the operation of S102, it further includes:

[0064] S201, according to the charging history information of the historical charging pile to the historical vehicle, obtain the historical temperature data of the charging interface of the historical vehicle, and determine the reference temperature data according to the historical temperature data.

[0065] S202, according to the charging history information of the historical charging pile to the vehicle, obtain the historical output power data of the historical charging pile, and determine the reference power data according to the historical output power data.

[0066] S203, according to the current output by the charging pile to the vehicle through the bus when the charging pile charges the vehicle, determine the reference current data.

[0067] S204, according to the voltage output by the charging pile to the vehicle through the bus when the charging pile charges the vehicle, determine the reference voltage data.

[0068] The operation of S102 specifically includes the following cases:

[0069] Temperature anomaly: compare the temperature data of the charging pile with the reference temperature data, if the difference between the temperature data of the charging pile and the reference temperature data exceeds the preset temperature difference threshold, it is determined that there is a temperature anomaly when the charging pile charges the vehicle.

[0070] Current anomaly: compare the output current data of the charging pile with the reference current data, if the difference between the output current data of the charging pile and the reference current data exceeds the preset current difference threshold, it is determined that there is a current anomaly when the charging pile charges the vehicle.

[0071] Voltage anomaly: compare the output voltage data of the charging pile with the reference voltage data, if the difference between the output voltage data of the charging pile and the reference voltage data exceeds the preset voltage difference threshold, it is determined that there is a voltage anomaly when the charging pile charges the vehicle.

[0072] Power anomaly: compare the output power data of the charging pile with the reference power data, if the difference between the output power data of the charging pile and the reference power data exceeds the preset power difference threshold, it is determined that there is a power anomaly when the charging pile charges the vehicle.

[0073] When the charging pile fails, there are usually temperature, current, voltage, output power and other abnormalities when charging the vehicle. Through the specific operation of the above embodiments, when the charging pile cannot be used due to sudden failure, or before serious accidents such as overcurrent and fire occur, the household direct current charging pile is warned and repaired in advance according to the temperature, current, voltage, output power and other abnormalities of the charging pile.

[0074] It is understandable that a single charging abnormality cannot accurately reflect that there is a fault in the charging pile. Therefore, in order to further improve the accuracy of fault judgment, in some optional implementations, if it is determined N times in a row that there is an abnormality when the charging pile charges the vehicle, an early warning message is sent to the alarm device, where N is an integer greater than 1.

[0075] The charging abnormality determination method provided in the embodiment of the present application can be applied to provide fault warning for home charging piles. Figure 3 The charging anomaly determination method provided in the embodiment of the present application is applied to the fault warning of the home charging pile to illustrate the present application, and this example does not constitute a limitation of the embodiment of the present application. The following embodiments can be combined with each other, and the same or similar concepts or processes will not be repeated.

[0076] like Figure 3 As shown, the home DC charging station communicates with the charging vehicle via CAN. The home DC charging pile can transmit data to the charging pile operation platform via 4G / 5G. Typically, home DC charging piles are managed by the charging pile operation platform. When charging a vehicle, the home DC charging pile uploads operational data to the charging pile operation platform via the 4G / 5G network. Based on the uploaded operational data, the platform determines if there are any anomalies with the home DC charging pile and issues an alarm. The charging vehicle transmits data to the vehicle cloud platform via 4G / 5G. Interoperability is achieved between the charging pile operation platform and the charging vehicle cloud platform.

[0077] DC charging piles may have many faults. When the operating data of a DC charging pile is abnormal due to a fault, erroneous operating data may be uploaded to the charging pile operation platform, making it difficult to detect the fault of the DC charging pile in time, thereby reducing the safety of the DC charging pile.

[0078] Based on historical experience, the main failure modes of home DC charging piles are as follows: gun tip wear, module sub-component failure, abnormal current, and abnormal voltage.

[0079] The first one is the wear of the gun tip

[0080] When the tip of the charging gun is worn, its resistance will change. The operation of the above embodiment S201 is used. The specific operation is: through past data, a curve of the temperature change at the charging interface over time during the normal charging of the vehicle by the charging pile is obtained, and this is used as a reference curve, that is, reference temperature data.

[0081] During the user inserts the charging gun of the household direct-current charging pile into the charging interface of the vehicle to charge the vehicle, if the gun head is worn, or the temperature of the gun head is abnormal due to the change of the resistance value of the gun head, the temperature sensor arranged at the charging interface of the vehicle is used to collect the temperature curve of the connection between the charging gun and the charging interface changing with time, that is, the temperature data of the charging pile when the charging pile charges the vehicle is obtained and uploaded to the vehicle cloud platform.

[0082] The vehicle cloud platform compares the temperature data of the charging pile with the reference temperature data, that is, compares the temperature curve of the connection between the charging gun and the charging interface changing with time when the charging pile charges the vehicle with the reference curve, and determines that the temperature is abnormal during this charging when the temperature rising rate of the connection between the charging gun and the charging interface, or the absolute temperature of the connection between the charging gun and the charging interface exceeds the first warning threshold.

[0083] It can be understood that since one temperature abnormality cannot accurately reflect that the charging pile has a fault risk, the vehicle cloud platform can only record the temperature abnormality and does not report a risk warning, and when temperature abnormalities are detected in two or more consecutive charging processes, the vehicle cloud platform confirms that the gun head of the charging gun of the charging pile has a wear fault according to the temperature abnormality conditions during multiple charging and performs a warning and arranges after-sales maintenance personnel to check.

[0084] It should be noted that when the charging interface of the vehicle is worn, the temperature will also be abnormal during charging, but the charging interface of the vehicle is usually protected by a protective cover, and the vehicle has better production technology and is also regularly maintained, and if the vehicle has a problem, it will be repaired in time, so when the vehicle cloud platform determines the temperature abnormality conditions during multiple charging, it first considers whether the gun head of the charging pile is worn, and if the after-sales maintenance personnel check that the gun head of the charging pile is not worn, the charging interface of the vehicle is detected, or the temperature sensor at the charging interface is detected, or whether the vehicle has other problems.

[0085] Second, module sub-component failure

[0086] For module sub-component failure, there is often a problem of insufficient function before complete damage, such as shutdown during charging, insufficient power, and substandard power rising speed. Therefore, the method provided in the embodiment of the application is used to perform the operation of S202, and specifically, a power model is established by using the historical output power of the charging pile to obtain a standard curve of the normal output power of the charging pile changing with time when the charging pile charges the vehicle, as reference power data.

[0087] During the user inserts the charging gun of the household direct-current charging pile into the charging interface of the vehicle to charge the vehicle, if the module sub-component fails and the output power of the charging pile is abnormal, the input power of the vehicle is correspondingly abnormal, the input current and voltage of the vehicle are collected through the current sensor and voltage sensor arranged in the charging interface of the vehicle, the actual input power of the vehicle is calculated, and the actual output power of the charging pile is obtained.

[0088] The vehicle cloud platform compares and analyzes the curve of the actual output power of the charging pile changing over time with the standard curve of the normal output power of the charging pile changing over time, and determines that there is power abnormality in this charging when the rising rate of the actual output power of the charging pile exceeds the rising rate of the normal output power of the charging pile by a certain range in the same time period.

[0089] It can be understood that, due to false positives, a power abnormality cannot accurately reflect that the charging pile has a failure risk, and therefore the vehicle cloud platform can only record the power abnormality and not report a risk warning, and when power abnormality is detected in two or more consecutive charging processes, the vehicle cloud platform confirms that the module sub-component of the charging gun of the charging pile has a failure and performs a warning and arranges an after-sales maintenance personnel to check. It can also be understood that, due to regular maintenance of the vehicle, when the vehicle cloud platform confirms the power abnormality in the multiple charging processes, it first does not consider the problem of the vehicle, but first checks whether the module sub-component of the charging pile has a failure, and if the after-sales maintenance personnel checks that the module sub-component of the charging pile does not have a failure, a step of detecting whether the vehicle has a failure is performed.

[0090] Third, current abnormality

[0091] For the output current abnormality of the charging pile, one part of the reason is that the current detection of the charging pile itself has a large deviation, so that the actual output current of the charging pile does not match the reported current. Therefore, the method provided in the embodiment of the application is used to perform the operation of S203, and the reference current data is determined according to the curve of the output current of the charging pile changing over time which is sent to the vehicle by the charging pile through the bus when the vehicle is charged.

[0092] During the user inserts the charging gun of the household direct-current charging pile into the charging interface of the vehicle to charge the vehicle, the actual input current of the vehicle, that is, the actual output current of the charging pile, is collected through the current sensor arranged in the charging interface of the vehicle, the vehicle cloud platform compares and analyzes the curve of the actual output current of the charging pile changing over time with the curve of the output current of the charging pile changing over time which is reported to the vehicle by the charging pile through the bus, and determines that there is current abnormality in this charging when the current error exceeds a certain threshold.

[0093] It can be understood that due to the existence of false positives, a current anomaly cannot accurately reflect the risk of failure of the charging pile, so the vehicle cloud platform can only record the current current anomaly, and does not report a risk warning. When current anomalies are detected in two or more consecutive charging processes, the vehicle cloud platform confirms that the module sub-components of the charging gun of the charging pile have a failure according to the current anomaly in multiple charging processes, and performs a warning, and arranges after-sales maintenance personnel to check.

[0094] Fourth, voltage anomaly

[0095] For charging pile output voltage anomaly, one of the reasons is that the charging pile itself voltage detection has a large deviation, resulting in that the actual output voltage of the charging pile and the reported voltage do not match. Therefore, the method provided in the embodiment of the application is used to perform the operation of S203, and the reference voltage data is determined according to the curve of the voltage output by the charging pile changing with time sent by the charging pile to the vehicle through the bus when the vehicle is charged.

[0096] During the period when the user inserts the charging gun of the household direct-current charging pile into the charging interface of the vehicle to charge the vehicle, the actual input voltage of the vehicle, that is, the actual output voltage of the charging pile, is collected by the voltage sensor arranged at the charging interface of the vehicle. The vehicle cloud platform compares and analyzes the curve of the actual output voltage of the charging pile changing with time with the curve of the output voltage changing with time reported by the charging pile to the vehicle through the bus, and determines that there is a voltage anomaly when the voltage error exceeds a certain threshold.

[0097] It can be understood that due to the existence of false positives, a current anomaly cannot accurately reflect the risk of failure of the charging pile, so the vehicle cloud platform can only record the current current anomaly, and does not report a risk warning. When current anomalies are detected in two or more consecutive charging processes, the vehicle cloud platform confirms that the module sub-components of the charging gun of the charging pile have a failure according to the current anomaly in multiple charging processes, and performs a warning, and arranges after-sales maintenance personnel to check.

[0098] Fifth, charging pile health detection

[0099] When the vehicle does not need to be charged, the user can detect the health status of the charging pile by himself through the operation of the charging anomaly determination method provided in the embodiment of the application after connecting the vehicle and the charging pile. This function is initiated by the vehicle, and the user can start this function when connecting the charging gun of the charging pile and the charging interface of the vehicle through the mobile phone APP or the vehicle system. The state of the household direct-current charging pile is tested through multiple working conditions, which plays a role in early warning. The specific test items include:

[0100] Temperature anomaly test: disconnect the battery of the vehicle from the conductive path of the charging interface, connect the electrical equipment on the vehicle to the conductive path of the charging interface, the vehicle sends a command to the charging pile through the bus to charge with peak current in a short time, the charging pile inputs current to the vehicle according to the command, the input current is loaded on the electrical equipment on the vehicle, and then the temperature anomaly determination method in the above embodiment is implemented to determine whether the charging pile has a temperature anomaly. The peak current here can be a peak curve intercepted from the existing output current curve of the charging pile.

[0101] Output voltage anomaly test: disconnect the battery of the vehicle from the conductive path of the charging interface, connect the electrical equipment on the vehicle to the conductive path of the charging interface, the vehicle sends a command to the charging pile through the bus, the charging pile loads voltage to the vehicle according to the command, and controls the output voltage of the charging pile to gradually adjust from the lowest output voltage of the charging pile to the highest output voltage, the voltage output by the charging pile is loaded on the electrical equipment on the vehicle, and then the voltage anomaly determination method in the above embodiment is implemented to determine whether the voltage output by the charging pile and the detection of the voltage output by the charging pile itself are abnormal.

[0102] Output current anomaly test: disconnect the battery of the vehicle from the conductive path of the charging interface, connect the electrical equipment on the vehicle to the conductive path of the charging interface, the vehicle sends a command to the charging pile through the bus, the charging pile loads current to the vehicle according to the command, and controls the output current of the charging pile to gradually adjust from the lowest output current of the charging pile to the highest output current, the current output by the charging pile is loaded on the electrical equipment on the vehicle, and then the current anomaly determination method in the above embodiment is implemented to determine whether the current output by the charging pile and the detection of the current output by the charging pile itself are abnormal.

[0103] The above embodiment increases the user's experience of actively detecting the charging pile by adding the health detection function of the charging pile by the vehicle, and improves the prediction accuracy.

[0104] Based on the same inventive concept, the embodiment of the present application also provides a charging anomaly determination device, please refer to Figure 4 , Figure 4 The charging anomaly determination device 400 in the embodiment of the present application is shown in the figure, which comprises:

[0105] The data acquisition unit 401 is configured to acquire the charging pile state data collected by the charging interface of the vehicle when the charging gun of the charging pile is inserted into the charging interface of the vehicle to charge the vehicle, the charging pile state data comprising temperature data, output power data, output current data and output voltage data of the charging pile.

[0106] The data comparison unit 402 is configured to compare the charging pile state data with the set reference data. If the difference between the charging pile state data and the reference data exceeds a preset threshold, it is determined that there is an abnormality when the charging pile charges the vehicle.

[0107] The charging abnormality determination apparatus 400 provided by the embodiments of the present application can perform the charging abnormality determination method given in the above embodiments. Specifically, the charging abnormality determination apparatus 400 can be applied to obtaining information of a household direct-current charging pile by a vehicle, evaluating and correcting charging pile parameters by a vehicle cloud platform, avoiding distortion of self-detection of the charging pile, and more effectively monitoring the state of the direct-current charging pile to achieve the effect of early warning.

[0108] The embodiments of the present application further provide a computer readable storage medium, which stores a computer program. The computer program is executed by a processor to make the computer perform the method provided by the above embodiments.

[0109] The embodiments of the present application further provide a server, as shown in the figure. Figure 5 The server 500 includes a memory 501, a processor 502, and a computer program 503 stored in the memory 501 and executable on the processor 502. When the processor 502 executes the computer program 503, the server 500 performs the method provided by the above embodiments.

[0110] The embodiments of the present application further provide a computer program product, which includes a computer program. When the computer program is executed, the computer performs the method provided by the above embodiments.

[0111] Those skilled in the art can understand that all or part of the steps of the above-mentioned method embodiments can be completed by program instructions related to hardware. The above-mentioned program can be stored in a computer readable storage medium. When the program is executed, the steps of the above-mentioned method embodiments are executed; and the above-mentioned storage medium includes ROM, RAM, magnetic disc or optical disc and various storage media that can store program codes.

[0112] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can modify the technical solutions recorded in the above embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

[0113] In the description provided herein, numerous specific details are set forth. However, it is understood that embodiments of the application can be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

Claims

1. A method for determining charging abnormality, characterized in that: include: When a charging gun of a charging pile is inserted into a charging interface of a vehicle so that the charging pile charges the vehicle, obtaining charging pile status data collected by the charging interface of the vehicle, the charging pile status data including temperature data of the charging pile, output power data of the charging pile, output current data of the charging pile, and output voltage data of the charging pile; Comparing the charging pile status data with set reference data, and if a difference between the charging pile status data and the reference data exceeds a preset threshold, determining that an abnormality exists when the charging pile is charging the vehicle; The abnormality includes temperature abnormality. The temperature abnormality test is specifically as follows: the conductive path between the vehicle's battery and the charging interface is disconnected, and the conductive path between the electrical equipment on the vehicle and the charging interface is connected. The vehicle sends an instruction to the charging pile through the bus to charge with peak current in a short time. The charging pile inputs current to the vehicle according to the instruction, and the input current is loaded on the electrical equipment on the vehicle. Then, the charging pile status data is compared with the set reference data to determine whether the charging pile has a temperature abnormality.

2. The charging abnormality determination method according to claim 1, wherein: The set reference data includes reference temperature data, reference power data, reference current data, and reference voltage data; Before comparing the charging pile status data with the set reference data, the method further includes: Acquire historical temperature data of a charging interface of a historical vehicle based on historical charging information of a historical charging pile for the historical vehicle, and determine the reference temperature data based on the historical temperature data; Obtaining historical output power data of the historical charging pile according to historical charging history information of the vehicle, and determining the reference power data according to the historical output power data; determining the reference current data according to the current output by the charging pile and sent to the vehicle via a bus when the charging pile is charging the vehicle; The reference voltage data is determined according to a voltage output by the charging pile and sent to the vehicle via a bus when the charging pile is charging the vehicle.

3. The charging abnormality determination method according to claim 2, wherein: The acquiring charging pile status data collected by the charging interface of the vehicle includes: Acquire temperature information collected by a temperature sensor at the connection between the charging interface and the charging gun, and use the temperature information as temperature data of the charging pile; The comparing the charging pile status data with set reference data, and if a difference between the charging pile status data and the reference data exceeds a preset threshold, determining that an abnormality exists when the charging pile is charging the vehicle, includes: The temperature data of the charging pile is compared with the reference temperature data. If the difference between the temperature data of the charging pile and the reference temperature data exceeds a preset temperature difference threshold, it is determined that a temperature anomaly exists when the charging pile charges the vehicle.

4. The charging abnormality determination method according to claim 2, wherein: The acquiring charging pile status data collected by the charging interface of the vehicle includes: Acquire input current information collected by a current sensor at the charging interface, and use the input current information as output current data of the charging pile; The comparing the charging pile status data with set reference data, and if a difference between the charging pile status data and the reference data exceeds a preset threshold, determining that an abnormality exists when the charging pile is charging the vehicle, includes: The output current data of the charging pile is compared with the reference current data. If the difference between the output current data of the charging pile and the reference current data exceeds a preset current difference threshold, it is determined that there is a current anomaly when the charging pile charges the vehicle.

5. The charging abnormality determination method according to claim 4, wherein: The acquiring charging pile status data collected by the charging interface of the vehicle includes: Acquire input voltage information collected by a voltage sensor at the charging interface, and use the input voltage information as output voltage data of the charging pile; The comparing the charging pile status data with set reference data, and if a difference between the charging pile status data and the reference data exceeds a preset threshold, determining that an abnormality exists when the charging pile is charging the vehicle, includes: The output voltage data of the charging pile is compared with the reference voltage data. If the difference between the output voltage data of the charging pile and the reference voltage data exceeds a preset voltage difference threshold, it is determined that a voltage anomaly exists when the charging pile charges the vehicle.

6. The charging abnormality determination method according to claim 5, wherein: The acquiring charging pile status data collected by the charging interface of the vehicle includes: Determine input power information of the charging interface according to the input current information and the input voltage information, and use the input power information as output power data of the charging pile; The comparing the charging pile status data with set reference data, and if a difference between the charging pile status data and the reference data exceeds a preset threshold, determining that an abnormality exists when the charging pile is charging the vehicle, includes: The output power data of the charging pile is compared with the reference power data. If the difference between the output power data of the charging pile and the reference power data exceeds a preset power difference threshold, it is determined that there is a power anomaly when the charging pile charges the vehicle.

7. The charging abnormality determination method according to claim 1, wherein: After determining that the charging pile is abnormal, the method further includes: If it is determined N times in succession that an abnormality exists when the charging pile charges the vehicle, a warning message is sent to an alarm device, where N is an integer greater than 1.

8. A charging abnormality determination device, characterized in that: include: a data acquisition unit, configured to acquire charging pile status data collected by the charging interface of the vehicle when the charging gun of the charging pile is inserted into the charging interface of the vehicle so that the charging pile charges the vehicle, the charging pile status data including the temperature data of the charging pile, the output power data of the charging pile, the output current data of the charging pile, and the output voltage data of the charging pile; a data comparison unit, configured to compare the charging pile status data with set reference data, and if a difference between the charging pile status data and the reference data exceeds a preset threshold, determine that an abnormality exists when the charging pile is charging the vehicle; The abnormality includes temperature abnormality. The temperature abnormality test is specifically as follows: the conductive path between the vehicle's battery and the charging interface is disconnected, and the conductive path between the electrical equipment on the vehicle and the charging interface is connected. The vehicle sends an instruction to the charging pile through the bus to charge with peak current in a short time. The charging pile inputs current to the vehicle according to the instruction, and the input current is loaded on the electrical equipment on the vehicle. Then, the charging pile status data is compared with the set reference data to determine whether the charging pile has a temperature abnormality.

9. A server comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the computer program, the server is caused to perform the method according to any one of claims 1 to 7.

10. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the computer is caused to perform the method according to any one of claims 1 to 7.

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