Charging time sequence detection method, system and equipment of charging pile, medium and product

Abstract

The invention discloses a charging pile charging time sequence detection method, system and device, a medium and a product, and relates to the field of electric vehicle charging, the method comprises the steps that a plurality of channel loop switches are arranged in a vehicle controller simulation box, and the plurality of channel loop switches are respectively used for controlling on-off of a plurality of signal lines; different charging states are simulated by controlling the on-off of different signal lines; based on the vehicle controller simulation box, acquiring parameter values of all signal acquisition points in different charging states; and judging whether the charging time sequence is normal or not based on a comparison result of the parameter value and a preset value. The charging time sequence detection method can be compatible with different vehicles.

Description

Technical Field

[0001] The present application relates to the field of electric vehicle charging, and in particular to a charging pile charging timing detection method, system, equipment, medium and product. Background Art

[0002] With the rapid development of the new energy vehicle industry around the world, more and more consumers are beginning to pay attention to the charging safety of electric vehicles. At present, the number of AC charging piles on the market still dominates. However, if the control timing is wrong during the AC charging process, it may cause safety hazards such as electric shock. Therefore, in order to ensure that electric vehicles can meet relevant standards and safety requirements before they are put on the market, automobile manufacturers have begun to pay attention to the charging timing detection of vehicles.

[0003] However, the existing charging timing detection method requires the collection of CAN communication data from the vehicle side. Due to the differences in CAN communication protocols among different automobile manufacturers, the versatility and compatibility of the charging timing detection method are poor. The charging timing detection method of the present application can be compatible with different vehicles. Summary of the invention

[0004] The purpose of this application is to provide a charging pile charging timing detection method, system, device, medium and product that are compatible with different vehicles.

[0005] To achieve the above objectives, this application provides the following solutions:

[0006] In a first aspect, the present application provides a charging pile charging timing detection method, comprising:

[0007] A plurality of channel loop switches are arranged in the vehicle controller simulation box, and the plurality of channel loop switches are respectively used to control the on and off of the plurality of signal lines;

[0008] By controlling the on and off of different signal lines, different charging states are simulated;

[0009] Based on the vehicle controller simulation box, obtaining parameter values ​​of each signal collection point under different charging states;

[0010] Based on the comparison result between the parameter value and the preset value, it is determined whether the charging sequence is normal.

[0011] Optionally, the plurality of signal lines include a charging control line, a charging communication line, a three-phase power line, a neutral line and a ground line.

[0012] Optionally, before simulating different charging states by controlling the on and off of different signal lines, the charging pile charging timing detection method further includes:

[0013] Testing the control functions of the plurality of channel loop switches one by one to ensure that each of the channel loop switches is in a normal working state;

[0014] The step of testing the control functions of the plurality of channel loop switches one by one includes:

[0015] Each of the control switches is turned on and off in sequence.

[0016] Optionally, the charging state includes a first charging state, a second charging state, a third charging state, a fourth charging state and a fifth charging state, wherein the first charging state is a charging preparation state, the second charging state is an initial charging state, the third charging state is an intermediate charging state, the fourth charging state is a charging nearly complete state, and the fifth charging state is a charging end state.

[0017] Optionally, obtaining parameter values ​​of each signal collection point under different charging states based on the vehicle controller simulation box includes:

[0018] Acquire voltage values ​​in the first charging state, the second charging state, and the fifth charging state;

[0019] Acquire a signal duty cycle in the fifth charging state;

[0020] The rising edge time, falling edge time and signal frequency under different charging states are obtained.

[0021] Optionally, the charging pile charging timing detection method further includes:

[0022] If the charging sequence is in an abnormal state, an alarm signal is issued and specific fault information is displayed.

[0023] In a second aspect, the present application provides a charging pile charging timing detection system, comprising:

[0024] A control module, used to set a plurality of channel loop switches in the vehicle controller simulation box, wherein the plurality of channel loop switches are respectively used to control the on and off of a plurality of signal lines;

[0025] A simulation module, used for simulating different charging states by controlling the on and off of different signal lines;

[0026] An acquisition module, based on the vehicle controller simulation box, acquires parameter values ​​of each signal collection point under different charging states;

[0027] The judgment module is used to judge whether the charging sequence is normal based on the comparison result between the parameter value and the preset value.

[0028] In a third aspect, the present application provides a computer device, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the steps of any one of the above-mentioned charging pile charging timing detection methods.

[0029] In a fourth aspect, the present application provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of any of the above-mentioned charging pile charging timing detection methods.

[0030] In a fifth aspect, the present application provides a computer program product, including a computer program, which, when executed by a processor, implements the steps of any of the above-mentioned charging pile charging timing detection methods.

[0031] According to the specific embodiments provided in this application, this application discloses the following technical effects:

[0032] The present application provides a charging pile charging sequence detection method, system, device, medium and product, which is provided by setting multiple channel loop switches in a vehicle controller simulation box, and the multiple channel loop switches are respectively used to control the on and off of multiple signal lines; by controlling the on and off of different signal lines, different charging states are simulated; based on the vehicle controller simulation box, the parameter values ​​of each signal collection point under different charging states are obtained; based on the comparison result of the parameter value and the preset value, whether the charging sequence is normal is judged. The charging pile charging sequence detection method proposed in the present application is compatible with different vehicles. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0034] Figure 1 This is an application environment diagram of a charging pile charging timing detection method in one embodiment of the present application;

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

[0036] Figure 3 A schematic diagram of the structure of a charging pile charging timing detection system provided in another embodiment of the present application;

[0037] Figure 4A schematic diagram of the structure of a charging pile charging timing detection system provided by another embodiment of the present application;

[0038] Figure 5 A circuit diagram of a charging pile charging timing detection system provided in another embodiment of the present application;

[0039] Figure 6 A schematic diagram of functional modules of a charging pile charging timing detection system provided in one embodiment of the present application;

[0040] Figure 7 A schematic diagram of the structure of a computer device provided in one embodiment of the present application. DETAILED DESCRIPTION

[0041] 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.

[0042] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the present application is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0043] In the electric vehicle charging system, it is crucial to ensure the accuracy of the charging compatibility control timing detection, because it is directly related to the smoothness of the entire charging process. To achieve this goal, a specific detection method is usually adopted, which is completed by collecting CAN communication data from the vehicle side and stripping the wires from the vehicle side to collect signals. When performing timing detection, the CAN data collector needs to be connected to the OBD-II interface or other CAN bus interface of the vehicle first. The purpose of this is to be able to obtain data on the vehicle CAN bus in real time. Next, connect the CAN data collector to the computer and ensure the smoothness of data transmission. In this way, we can collect all the data generated on the vehicle CAN bus during the charging process in real time. During the collection process, all relevant messages in the charging process need to be recorded, including but not limited to charging status, error code, charging power, etc. This information is crucial for subsequent data analysis and fault diagnosis. In order to further analyze the collected data, special software is needed to parse the CAN data. Through parsing, key information in the charging process, such as charging current, voltage, temperature and other parameters, is extracted. Then, the parsed data is compared with the normal range to determine whether each parameter is within the normal range. If a parameter is found to be out of the normal range, it is necessary to diagnose and handle the fault in a timely manner. However, the above method also faces some challenges in practical application. First, the data format on the CAN bus is diverse and complex, and many different types of messages and protocols need to be parsed. Secondly, the amount of CAN data generated during the charging process is usually large, which requires us to have efficient data processing and storage capabilities to ensure the integrity and accuracy of the data. In addition, different vehicle manufacturers may use different CAN protocols and data formats, which requires manufacturers to provide corresponding technical support and documentation. Finally, some vehicles may have strict restrictions on CAN data access, which may affect the integrity and accuracy of data collection.

[0044] In the process of stripping the wires on the vehicle side to collect signals for timing detection, the first thing to do is to identify the specific signal lines that need to be collected. These signal lines may include CC (charging control line), CP (charging protocol line), L1, L2, L3 (three-phase power line), N (neutral line) and PE (protective ground line). Preparation includes preparing the oscilloscope and probe, and ensuring that these devices are in normal working condition. When stripping the signal wires inside the vehicle, you must be extremely careful to avoid any damage to the cables. Use the probe to connect to the signal line to be collected and ensure good contact to ensure accurate signal collection. The stripping operation may temporarily change the electrical connection status of the vehicle, which may affect the normal operation of the vehicle. In addition, long-distance signal transmission may cause signal attenuation, which in turn affects the accuracy of the test results. There are differences in the layout and connection methods of signal lines for different models, so special adaptation work is required for each model. Because the stripping collection method is difficult to standardize, different testers may produce different results during operation. This difference may affect the consistency and reliability of the test results.

[0045] The charging pile charging timing detection method provided in the embodiment of the present application can be applied to Figure 1 In the application environment shown. Among them, the terminal 102 communicates with the server 104 through the network. The data storage system can store the data that the server 104 needs to process. The data storage system can be set up separately, integrated on the server 104, or placed on the cloud or other servers. The terminal 102 can send the parameter values ​​of each signal acquisition point to the server 104. After the server 104 receives the parameter values ​​of each signal acquisition point, for the parameter values ​​of each signal acquisition point, the server 104 determines whether the charging sequence is normal based on the comparison result between the parameter value and the preset value. The server 104 can feed back the charging sequence judgment result to the terminal 102. In addition, in some embodiments, the charging sequence detection of the charging pile can also be implemented separately by the server 104 or the terminal 102, such as the terminal 102 can directly process the parameter values ​​of each signal acquisition point, or the server 104 can obtain the parameter values ​​of each signal acquisition point from the data storage system and process the parameter values ​​of each signal acquisition point.

[0046] The terminal 102 may be, but is not limited to, various desktop computers, laptop computers, smart phones, tablet computers, IoT devices, and portable wearable devices. The IoT devices may be smart speakers, smart TVs, smart air conditioners, smart vehicle-mounted devices, etc. The portable wearable devices may be smart watches, smart bracelets, head-mounted devices, etc. The server 104 may be implemented as an independent server or a server cluster consisting of multiple servers, or may be a cloud server.

[0047] In an exemplary embodiment, Figure 2 As shown, a timing detection method based on a charging pile is provided. The method is executed by a computer device, and can be specifically executed by a computer device such as a terminal or a server alone, or can be executed by a terminal and a server together. In the embodiment of the present application, the method is applied to Figure 1 The server 104 in the example is used as an example to illustrate the method, which includes the following steps S201 to S204. Among them:

[0048] In step S201, a plurality of channel loop switches are provided in the vehicle controller simulation box, and the plurality of channel loop switches are respectively used to control the on and off of a plurality of signal lines.

[0049] Specifically, Figure 3 The schematic diagram of the charging pile charging timing detection system is as follows: Figure 3 As shown, the charging pile is connected to the first charging interface of the charging timing detection system through the charging gun, and the charging timing detection system is connected to the second charging interface of the vehicle through the charging adapter. When the charging pile sends a charging request signal, the charging timing detection system will receive this signal and transmit the processed power to the battery of the vehicle through the charging adapter, thereby starting the charging process. At the same time, the charging timing detection system will monitor and analyze various data during the charging process, including but not limited to parameters such as voltage and current, to determine whether the charging timing is normal.

[0050] Before performing the charging sequence detection of the charging pile, first ensure that all related equipment has been completely powered off to prevent accidents during the connection process. The preparation work includes preparing the charging gun at one end of the charging pile, the charging sequence detection system of the charging pile, and the charging adapter gun. Then, insert the charging gun at one end of the charging pile into the input port of the charging sequence detection system of the charging pile, and carefully check to confirm whether the connection is firm to avoid inaccurate data transmission caused by loose interface, thereby affecting the reliability of the test results. Connect one end of the charging adapter gun to the output port of the charging sequence detection system to ensure that the connection is stable and reliable. Finally, connect the other end of the charging adapter gun to the AC charging interface of the vehicle, and carefully check all the connection points to ensure good contact and no looseness to ensure the safety and accuracy of the entire detection process.

[0051] like Figure 4 As shown, Figure 4This is a structural diagram of the charging timing detection system of the charging pile of this application. In the charging timing detection system of the charging pile, the power supply device under test includes a single-phase or three-phase AC power supply, whose main function is to input power into the AC charging pile. One side of the AC charging pile is connected to a single-phase or three-phase AC power supply, which is responsible for converting the AC power provided by the power grid into DC power suitable for electric vehicles. The other side of the AC charging pile is connected to the vehicle controller simulation box through the vehicle socket, thereby realizing the functions of power transmission and information interaction. The vehicle controller simulation box is connected to the electrical parameter tester through its internal vehicle control simulation circuit. The main function of the electrical parameter tester is to monitor and collect data during the charging process. The electrical parameter tester uploads the monitored information to the server for further processing to determine whether the charging timing is normal. The charging pile charging timing detection system mainly includes a vehicle controller simulation box, an electrical parameter tester and a load. In the vehicle controller simulation box, a vehicle control simulation circuit is provided. The vehicle socket serves as an interface for connecting the AC charging pile and the vehicle controller simulation box, ensuring a smooth connection between the two. The function of the vehicle controller simulation box is to simulate the control system of the actual vehicle and to monitor and control the charging process. The vehicle controller simulation box contains a vehicle control simulation circuit, which is responsible for generating and processing the control signals required during the charging process. The electrical parameter tester is used to monitor and record the electrical parameters during the charging process in real time, such as voltage, current, etc. These parameters are crucial for evaluating the performance of the charging system. The load represents the battery pack of the electric vehicle to be charged, which is used to receive power from the charging pile to ensure that the electric vehicle can be charged normally.

[0052] like Figure 5 As shown, Figure 5 This is the circuit diagram of the charging pile charging timing detection system of the present application. In the charging pile charging timing detection system, the signal lines include a charging control line, a charging communication line, a three-phase power line, a neutral line and a ground line. L represents the live wire of a single-phase or three-phase AC power supply. L1, L2 and L3 respectively represent the three phases of the three-phase AC power supply, which are used to transmit power to charge the vehicle battery. N represents the neutral line of a single-phase or three-phase AC power supply, which together with the phase line forms a complete AC power supply circuit. PE represents the protective ground wire, which is used to ensure the safety of personnel and equipment. CC represents the charging control wire used for charging connection confirmation, which is used to detect whether the charging plug is correctly inserted into the socket. CP represents the charging control wire used for charging protocol communication, which is used to transmit charging requests and confirmation signals to realize communication between the charging pile and the vehicle. U out and I out They represent the output voltage and output current respectively. These parameters represent the actual electrical energy parameters output by the charging pile to the load.

[0053] In step S202, different charging states are simulated by controlling the on and off of different signal lines.

[0054] Specifically, before step S202, the charging pile charging timing detection method further includes the following steps:

[0055] A1. Test the control functions of multiple channel loop switches one by one to ensure that each of the channel loop switches is in normal working condition;

[0056] A2. Testing the control functions of the plurality of channel loop switches one by one, including:

[0057] A3. Turn each control switch on and off in turn.

[0058] In step S203, based on the vehicle controller simulation box, the parameter values ​​of each signal collection point under different charging states are obtained.

[0059] Specifically, the charging state includes a first charging state, a second charging state, a third charging state, a fourth charging state and a fifth charging state, wherein the first charging state is a charging preparation state, the second charging state is an initial charging state, the third charging state is an intermediate charging state, the fourth charging state is a charging nearly complete state, and the fifth charging state is a charging end state.

[0060] In one embodiment, step S203 includes the following steps:

[0061] B1. Obtaining voltage values ​​in the first charging state, the second charging state, and the fifth charging state;

[0062] B2. Obtaining a signal duty cycle in a fifth charging state;

[0063] B3. Obtain the rising edge time, falling edge time and signal frequency under different charging states.

[0064] In step B3, the rising edge time indicates the time when the signal changes from a low level to a high level, the falling edge time indicates the time when the signal changes from a high level to a low level, and the signal frequency is the periodic change frequency of the signal.

[0065] In step S204, based on the comparison result between the parameter value and the preset value, it is determined whether the charging sequence is normal.

[0066] When the electric vehicle is in the first charging state, if the detected voltage value is 0V or close to 0V, it indicates that the charging process has not officially started. In this case, it can be confirmed that the battery system has not received any charging current. However, if the voltage value is not 0V in the first charging state, this may indicate that the charging system has been falsely started or there are other electrical problems. In order to ensure the normal operation of the charging system, when a non-zero voltage is detected, the startup logic of the charging pile needs to be carefully checked to ensure that no misoperation occurs before the actual charging begins. In addition, the power quality needs to be evaluated to ensure the stability of the grid voltage and avoid charging problems caused by voltage fluctuations or instability. Through these checks and adjustments, it can be ensured that the electric vehicle is charged under safe and correct conditions, thereby avoiding potential electrical failures and safety hazards.

[0067] When the electric vehicle is in the second charging state, the charging voltage of the electric vehicle should match the rated output voltage of the charging pile. For example, for a single-phase charging pile, the rated output voltage is usually 220V, while for a three-phase charging pile, the rated output voltage is 380V. If the voltage value detected in the second charging state is lower or higher than these rated values, it may indicate that the output voltage of the charging pile is unstable or there is a problem with the line. In order to ensure the normal operation of the charging system, if the voltage is detected to be low, it is necessary to carefully check the output circuit of the charging pile to ensure that there is no short circuit or poor contact. On the contrary, if the voltage is detected to be high, the voltage stabilization circuit of the charging pile should be checked to ensure that the overvoltage protection function is working properly to avoid damage to the battery system of the electric vehicle due to excessive voltage.

[0068] When the electric vehicle is in the fifth charging state, the normal positive voltage value should be 0V or very close to 0V, which means that the charging process has been successfully completed. However, if the value of the positive voltage is not 0V in this state, then this may mean that the charging system has not stopped working correctly, or there is some kind of electrical fault. In order to ensure the normal operation of the charging system, when the positive voltage is not detected to be 0V, it is first necessary to check whether the stop logic of the charging pile is correct. The stop logic of the charging pile should be able to accurately send a stop signal after charging is completed to ensure that the charging process can be successfully completed. If there is a problem with the stop logic, it needs to be adjusted and repaired in time. In addition, it is necessary to check the communication line of the vehicle controller to ensure that there are no errors or interference during the signal transmission process. Only when the communication line is working properly and the signal is transmitted correctly can the stability and safety of the charging system be ensured.

[0069] When the electric vehicle is in the fifth charging state, the duty cycle of the PWM (pulse width modulation) signal should be 0%, which means that the charging process has been successfully completed and the PWM signal should be completely stopped. However, if the PWM duty cycle is still not 0% in this state, this may indicate that the charging system has not stopped working correctly or there is a fault in the control signal. In this case, if the duty cycle is not 0%, it is necessary to check the control logic of the charging pile to ensure that the PWM signal can be stopped correctly after the charging process is completely completed. In addition, if the duty cycle fluctuates, it is necessary to further check the stability of the signal source to ensure that there is no external interference or noise, so as to ensure the normal operation and safety of the charging system.

[0070] In the charging pile charging timing detection system, the rising edge time and falling edge time of the signal determine the conversion speed of the signal from low level to high level or from high level to low level. In order to ensure the stability and reliability of signal transmission, the rising edge time and falling edge time should be kept within a reasonable range, which can usually be set to 100μs-1ms. If the rising edge or falling edge time is too long, it may cause unnecessary delays in the signal transmission process, thereby affecting the response speed and performance of the entire system. On the contrary, if the rising edge and falling edge time are too short, it may cause signal quality problems, such as increased jitter or noise of the signal. In order to deal with the situation where the rising edge and falling edge time are too long, it is necessary to carefully check the signal transmission line to ensure that there is no excessive delay in the line. By optimizing the line layout, reducing the line length, or using a higher performance transmission medium. In addition, the driving capability of the signal source can also be checked to ensure that it can provide sufficient current and voltage to support fast signal conversion. In addition, if the rising edge and falling edge time are too short, it is necessary to check whether the driving capability of the signal source is strong enough to ensure the stability of signal transmission. The signal source should have sufficient drive current and voltage to cope with changes in the load and avoid jitter or distortion of the signal during transmission. The signal frequency should be stable within the specified range, such as 1kHz. If the signal frequency fluctuates greatly, it may indicate that the signal source itself is not stable enough or there is external interference. In order to ensure the stability of the signal frequency, it is necessary to check the stability of the signal source to ensure that it can maintain frequency consistency during long-term operation. If frequency deviation is found, it is necessary to further check the signal transmission line to ensure that the signal is not distorted or interfered during transmission, so as to ensure the quality and reliability of the signal.

[0071] For example, in a charging pile charging sequence detection, the following data is recorded:

[0072] First charging state voltage: 0V (normal);

[0073] Second charging state voltage: 220V (normal);

[0074] Third charging state voltage: 220V (normal);

[0075] Fourth charging state voltage: 220V (normal);

[0076] Fifth charging state positive voltage: 10V (abnormal);

[0077] Fifth charging state PWM duty cycle: 10% (abnormal);

[0078] Rising edge time: 150μs (normal);

[0079] Falling edge time: 150μs (normal);

[0080] Frequency: 1kHz (normal);

[0081] From the above test data, it is known that the positive voltage of the fifth charging state is 10V, which is beyond the normal range, indicating that the charging pile charging timing detection system has not stopped correctly. At the same time, the PWM duty cycle of the fifth charging state is 10%, which is beyond the normal range, indicating that the PWM signal has not stopped completely. This may be due to a problem with the control logic of the charging pile, or the vehicle controller failed to send the stop signal correctly. Check the control logic of the charging pile to ensure that the stop signal can be sent correctly after charging is completed. Check the communication line of the vehicle controller to ensure that the signal transmission is correct. After correction, retest and record new data to ensure that the positive voltage of the fifth charging state is 0V and the PWM duty cycle of the fifth charging state is 0%. Restart the charging pile and vehicle and perform a charging test. Collect and record new data to ensure that all parameters are within the normal range. Through the above steps, it is possible to comprehensively judge whether the charging timing is normal, and timely discover and solve problems, ensuring the compatibility and safety of the charging pile. After the monitoring is completed, restore all control switches to the initial state to ensure that the normal charging function of the electric vehicle is not affected.

[0082] In one embodiment, the charging pile charging sequence detection method further includes: if the charging sequence is in an abnormal state, an alarm signal is issued and specific fault information is displayed.

[0083] Based on the same inventive concept, the embodiment of the present application also provides a system for implementing the charging pile charging sequence detection system involved above. The implementation scheme for solving the problem provided by the system is similar to the implementation scheme recorded in the above method, so the specific limitations in one or more charging pile charging sequence detection system embodiments provided below can refer to the limitations of the charging pile charging sequence detection method above, and will not be repeated here.

[0084] In an exemplary embodiment, Figure 6As shown, a charging pile charging timing detection system is provided, comprising:

[0085] A control module 610 is used to set a plurality of channel loop switches in the vehicle controller simulation box, wherein the plurality of channel loop switches are respectively used to control the on and off of a plurality of signal lines;

[0086] A simulation module 620, used to simulate different charging states by controlling the on and off of different signal lines;

[0087] An acquisition module 630, based on the vehicle controller simulation box, acquires parameter values ​​of each signal collection point under different charging states;

[0088] The judgment module 640 is used to judge whether the charging sequence is normal based on the comparison result between the parameter value and the preset value.

[0089] As an optional implementation, the plurality of signal lines include a charging control line, a charging communication line, a three-phase power line, a neutral line, and a ground line.

[0090] As an optional implementation, before simulating different charging state steps by controlling the on and off of different signal lines, the charging pile charging timing detection system further includes:

[0091] Testing the control functions of the plurality of channel loop switches one by one to ensure that each of the channel loop switches is in a normal working state;

[0092] The step of testing the control functions of the plurality of channel loop switches one by one includes:

[0093] Each of the control switches is turned on and off in sequence.

[0094] As an optional embodiment, the charging state includes a first charging state, a second charging state, a third charging state, a fourth charging state and a fifth charging state, wherein the first charging state is a charging preparation state, the second charging state is an initial charging state, the third charging state is an intermediate charging state, the fourth charging state is a charging nearly complete state, and the fifth charging state is a charging end state.

[0095] As an optional implementation, the acquisition module is specifically used to:

[0096] Acquire voltage values ​​in the first charging state, the second charging state, and the fifth charging state;

[0097] Acquire a signal duty cycle in the fifth charging state;

[0098] The rising edge time, falling edge time and signal frequency under different charging states are obtained.

[0099] As an optional implementation, the charging pile charging timing detection system also includes:

[0100] If the charging sequence is in an abnormal state, an alarm signal is issued and specific fault information is displayed.

[0101] In an exemplary embodiment, a computer device is provided. The computer device may be a server or a terminal. The internal structure diagram thereof may be as follows: Figure 7 As shown. The computer device includes a processor, a memory, an input / output interface (Input / Output, referred to as I / O) and a communication interface. Among them, the processor, the memory and the input / output interface are connected through a system bus, and the communication interface is connected to the system bus through the input / output interface. Among them, the processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program and a database. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The database of the computer device is used to store parameter values ​​of each signal collection point under different charging states. The input / output interface of the computer device is used to exchange information between the processor and an external device. The communication interface of the computer device is used to communicate with an external terminal through a network connection. When the computer program is executed by the processor, a charging pile charging timing detection method is implemented.

[0102] Those skilled in the art will understand that Figure 7 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0103] In an exemplary embodiment, a computer device is further provided, including a memory and a processor, wherein a computer program is stored in the memory, and the processor implements the steps in the above-mentioned method embodiments when executing the computer program.

[0104] In an exemplary embodiment, a computer-readable storage medium is provided, storing a computer program, and when the computer program is executed by a processor, the steps in the above method embodiments are implemented.

[0105] In an exemplary embodiment, a computer program product is provided, including a computer program, and when the computer program is executed by a processor, the steps in the above method embodiments are implemented.

[0106] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data must comply with relevant regulations.

[0107] Those of ordinary skill in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to the memory, database or other medium used in the embodiments provided in the present application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM may be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM).

[0108] The database involved in each embodiment provided in this application may include at least one of a relational database and a non-relational database. The non-relational database may include a distributed database based on blockchain, etc., but is not limited thereto. The processor involved in each embodiment provided in this application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, etc., but is not limited thereto.

[0109] The technical features of the above embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0110] This article uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only used to help understand the method and core ideas of this application. At the same time, for those skilled in the art, according to the ideas of this application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting this application.

Claims

1. A charging pile charging sequence detection method, characterized in that: The charging pile charging timing detection method comprises: A plurality of channel loop switches are arranged in the vehicle controller simulation box, and the plurality of channel loop switches are respectively used to control the on and off of the plurality of signal lines; By controlling the on and off of different signal lines, different charging states are simulated; Based on the vehicle controller simulation box, obtaining parameter values ​​of each signal collection point under different charging states; Based on the comparison result between the parameter value and the preset value, it is determined whether the charging sequence is normal.

2. The charging pile charging timing detection method according to claim 1, characterized in that: The plurality of signal lines include a charging control line, a charging communication line, a three-phase power line, a neutral line, and a ground line.

3. The charging pile charging timing detection method according to claim 1, characterized in that: Before simulating different charging state steps by controlling the on and off of different signal lines, the charging timing detection method of the charging pile further includes: Testing the control functions of the plurality of channel loop switches one by one to ensure that each of the channel loop switches is in a normal working state; The step of testing the control functions of the plurality of channel loop switches one by one includes: Each of the control switches is turned on and off in sequence.

4. The charging pile charging timing detection method according to claim 1, characterized in that: The charging state includes a first charging state, a second charging state, a third charging state, a fourth charging state and a fifth charging state, wherein the first charging state is a charging preparation state, the second charging state is an initial charging state, the third charging state is an intermediate charging state, the fourth charging state is a charging nearly complete state, and the fifth charging state is a charging end state.

5. The charging pile charging timing detection method according to claim 4, characterized in that: The acquiring, based on the vehicle controller simulation box, parameter values ​​of each signal collection point under different charging states comprises: Acquire voltage values ​​in the first charging state, the second charging state, and the fifth charging state; Acquire a signal duty cycle in the fifth charging state; The rising edge time, falling edge time and signal frequency under different charging states are obtained.

6. The charging pile charging timing detection method according to claim 1, characterized in that: The charging pile charging timing detection method also includes: If the charging sequence is in an abnormal state, an alarm signal is issued and specific fault information is displayed.

7. A charging pile charging sequence detection system, characterized in that: The charging pile charging timing detection system comprises: A control module, used to set a plurality of channel loop switches in the vehicle controller simulation box, wherein the plurality of channel loop switches are respectively used to control the on and off of a plurality of signal lines; A simulation module, used for simulating different charging states by controlling the on and off of different signal lines; An acquisition module, based on the vehicle controller simulation box, acquires parameter values ​​of each signal collection point under different charging states; The judgment module is used to judge whether the charging sequence is normal based on the comparison result between the parameter value and the preset value.

8. A computer device comprising: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the steps of the charging pile charging timing detection method described in any one of claims 1 to 6.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the charging pile charging timing detection method described in any one of claims 1-6 are implemented.

10. A computer program product, comprising a computer program, characterized in that When the computer program is executed by a processor, the steps of the charging pile charging timing detection method described in any one of claims 1-6 are implemented.

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