European standard direct current charging simulator and use method

Abstract

The invention discloses a European standard direct current charging simulator and a use method, and relates to the field of circuit design, and the European standard direct current charging simulator comprises a power supply socket S1, a power conversion module P1, a control module, a communication module and an analysis module C1; the power supply socket S1 is connected with an AC power supply to supply power to the simulator; the power supply conversion module P1 is used for converting alternating current into direct current to provide a stable power supply for the simulator; the communication module is used for simulating the communication process of charging of the charging pile and establishing connection between the charging pile and the simulator; the control module comprises an equipment main control panel CMU, simulates and sets voltage and current requirements of the charging pile, and establishes communication with the simulator through the communication module; and the analysis module C1 is used for connecting an upper computer to modify the charging voltage requirement, troubleshooting and debugging of the equipment main control board CMU. Whether the communication function and the charging function of the charging pile are normal or not can be rapidly detected, the testing efficiency and progress are greatly improved, and time and labor cost are saved.

Description

Technical Field

[0001] The present invention relates to the field of circuit design, and in particular to a European standard direct current charging simulator and a use method thereof. Background Art

[0002] As the world pays more attention to environmental protection and sustainable development, electric vehicles have developed rapidly as a green travel mode. European countries have formulated positive policies to promote the popularization of electric vehicles, including subsidy policies and the construction of charging infrastructure, etc. This has led to a growing demand for electric vehicle charging equipment in the European market, and also put forward higher requirements for the performance, safety and compatibility of charging equipment.

[0003] With the continuous advancement of power electronics technology, communication technology and control technology, DC charging technology is also constantly developing and improving. Modern DC charging piles usually adopt efficient power conversion technology, advanced communication protocols and intelligent control strategies, which can achieve functions such as fast charging, intelligent management and remote monitoring. European standard DC charging simulators need to keep up with the development trends of these technologies to accurately simulate the real charging environment.

[0004] The European standard DC charging simulator is a device specifically designed to simulate the European standard DC charging environment. It plays a vital role in the research and development, testing and fault diagnosis of electric vehicle charging systems. Electric vehicle manufacturers and charging pile manufacturers also need to use charging simulators to simulate various charging scenarios and fault conditions during product development and debugging to verify product performance and reliability. The European standard DC charging simulator can provide R&D personnel with a convenient and efficient testing platform to help them quickly discover and solve problems and shorten product development cycles.

[0005] Therefore, the present invention proposes a European standard DC charging simulator and a method of using the same. Summary of the invention

[0006] The object of the present invention is to provide a European standard DC charging simulator and a method of use to overcome the deficiencies of the prior art.

[0007] In order to achieve the above object, the present invention provides the following technical solutions: On the one hand, the present invention provides a European standard DC charging simulator, comprising a power supply socket S1, a power conversion module P1, a control module and an analysis module C1; The power socket S1 is used as the power input interface of the simulator, and is connected to an external socket strip to power the simulator; The power conversion module P1 is used to convert AC power into DC power to provide a stable power supply for the simulator; Communication module, used to simulate the communication process of charging pile and to establish the connection between charging pile and simulator, to ensure effective data exchange and charging control between simulator and charging pile; The control module includes the equipment main control board CMU, which simulates the voltage and current requirements of the charging pile. It can also modify the required voltage of the simulated charging pile on the host computer through the analysis module C1 to simulate the voltage requirement during the charging process. The analysis module C1 is used to connect to the host computer to modify the charging voltage requirement of the equipment main control board CMU, providing users with a flexible voltage setting method to meet different test requirements and capture messages during use. When the product fails, the cause of the problem can be found by analyzing the message, which is convenient for troubleshooting and debugging.

[0008] Furthermore, the communication module includes a communication controller EVCC, which is used to simulate the communication process of charging the charging pile; and a charging interface CCS2, which is used to establish a connection between the charging pile and the simulator.

[0009] Furthermore, the power socket S1 is also connected to a power indicator light L1 and a leakage protection switch Q1; the positive pole of the power socket S1 is connected to the positive pole of the power indicator light L1 and the AC input side of the power conversion module P1 in sequence, and the negative pole of the power socket S1 is connected to the negative pole of the power indicator light L1 and the AC output side of the power conversion module P1; the leakage protection switch Q1 is connected to the AC input side of the power conversion module P1.

[0010] Furthermore, the device main control board CMU includes a DO-COM port, a DO-12V-1 port, a DO-12V-2 port, a CAN1 port and a CAN2 port, the analysis module C1 is a CAN analyzer, and the CAN analyzer includes a CAN1 port and a CAN2 port; the positive pole of the power conversion module P1 is connected to the positive pole of the device main control board CMU, the DO-12V-1 port of the device main control board CMU, the DO-12V-2 port of the device main control board CMU and the positive pole of the communication controller EVCC, and the negative pole of the power conversion module P1 is connected to the negative pole of the device main control board CMU, the DO-COM port of the device main control board CMU and the negative pole of the communication controller EVCC; the CAN1 port of the device main control board CMU is connected to the CAN1 port of the CAN analyzer, and the CAN2 port of the device main control board CMU is connected to the CAN2 port of the CAN analyzer.

[0011] Furthermore, a third power indicator light L3 is connected in series between the power conversion module P1 and the DO-12V-1 port of the device main control board CMU, and a second power indicator light L2 is connected in series between the power conversion module P1 and the DO-12V-2 port of the device main control board CMU.

[0012] Furthermore, the communication controller EVCC includes a CAN2 port, a CP port and a PE port, and the charging interface CCS2 includes a CP port and a PE port; the CAN2 port of the communication controller EVCC is connected to the CAN2 port of the CAN analyzer, the CP port of the communication controller EVCC is connected to the CP port of the charging interface CCS2, and the PE port of the communication controller EVCC is connected to the PE port of the charging interface CCS2.

[0013] Furthermore, the input voltage of the simulator is 220V single-phase power supply, and the power conversion module P1 converts 220V AC power into 12V DC power.

[0014] In another aspect, the present invention further provides a method for using a European standard DC charging simulator. The power supply socket S1 is connected to an AC power source, and the gun head of the charging pile is connected to a communication module; the communication module includes a communication controller EVCC and a charging interface CCS2, and the gun head of the charging pile is connected to a gun seat of the charging interface CCS2 to establish communication.

[0015] Furthermore, when there is a communication failure between the communication controller EVCC and the simulator, a fault indicator light L3 is on.

[0016] Furthermore, when the charging pile establishes communication with the simulator through the charging interface CCS2 of the simulator, the operation indicator light L2 lights up.

[0017] Compared with the prior art, the present invention has the following beneficial technical effects: The present invention provides a European standard DC charging simulator. By arranging a power conversion module, a control module, a communication module and an analysis module in coordination, the control module can not only simulate the voltage requirement of the charging pile, but also set the voltage requirement of the charging pile on a host computer through the analysis module, so that a user can flexibly adjust the simulated voltage requirement in different test scenarios to meet various test conditions and requirements. Through communication with the host computer, the user can conveniently set parameters and monitor the test process. The European standard DC charging simulator provided by the present invention can quickly detect whether the communication function and charging function of the charging pile are normal during the on-site maintenance of the charging pile, help maintenance personnel to find and solve problems in time, and ensure the stable operation of the charging pile; the European standard DC charging simulator is suitable for various test scenarios, whether it is the debugging of a newly installed charging pile or the testing of a modified charging pile, it can provide accurate test results, and provide strong support for the performance evaluation of the charging pile; for a newly installed charging pile, its communication and charging functions can be quickly tested to ensure that it meets the European standard requirements, which greatly improves the test efficiency and progress, saves time and labor costs, and provides an efficient solution for the research and development, production, installation and maintenance of the charging pile; in the process of developing a new charging pile in the laboratory, the communication and charging conditions under different voltages can be simulated to help R&D personnel find potential problems and optimize the design and performance of the charging pile.

[0018] Specifically, the equipment main control board CMU controls the simulator fault indicator light and operation indicator light through the DO-12V-1 port and the DO-12V-2 port. When the gun head of the charging pile is inserted into the charging interface CCS2 gun holder, the simulator is operating normally and the operation indicator light L2 lights up, allowing the user to intuitively understand that the simulator is currently in normal working condition. When the communication controller EVCC fails to communicate with the simulator, the fault indicator light L3 lights up to remind the user that there is a problem with the simulator. The user can take prompt action according to the prompt of the fault indicator light to conduct a comprehensive inspection and repair of the simulator, thereby avoiding further expansion of the fault and reducing the loss and inconvenience caused by the simulator failure. This setting of the fault indicator light and the operation indicator light provides a strong guarantee for the stable operation and timely maintenance of the simulator, greatly improving the reliability of the simulator and the user experience.

[0019] Specifically, the communication controller EVCC includes a CAN2 port, a CP port, and a PE port. The charging interface CCS2 includes a CP port and a PE port. These two interfaces work closely with the corresponding interfaces of the communication controller EVCC during the charging process. The CAN2 port of the communication controller EVCC is connected to the CAN2 port of the CAN analyzer. The main control board of the device can interact with the CAN analyzer to monitor and analyze the system communication data, further enhancing the communication capability and data analysis function of the simulator. This connection method enables the simulator to monitor and analyze communication data in real time, discover and solve potential problems in a timely manner, and improve the stability and reliability of the simulator. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The figure is a schematic diagram of the principle of a European standard DC charging simulator in an embodiment of the present invention. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0022] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0023] The European standard DC charging simulator provided by the present invention is convenient for on-site maintenance, experimental testing, debugging of newly installed charging piles, testing of charging piles after on-site maintenance or modification, etc. It can quickly test the communication function and charging function of charging piles that have just been installed, modified, after on-site maintenance, and newly developed in the laboratory. It can also simulate whether communication and charging are normal under different voltages, greatly improving test efficiency and progress.

[0024] Example 1 See also Figure 1 , the present invention provides a European standard DC charging simulator, including a power supply socket S1, a power conversion module P1, a control module, a communication module and an analysis module C1; The power supply socket S1 uses a power cord to connect the power strip to power the simulator; the power supply socket S1 is also connected to a power indicator light L1 and a leakage protection switch Q1; the positive pole of the power supply socket S1 is connected to the positive pole of the power indicator light L1 and the AC input side of the power conversion module P1 in turn, and the negative pole of the power supply socket S1 is connected to the negative pole of the power indicator light L1 and the AC output side of the power conversion module P1; the leakage protection switch Q1 is connected to the AC input side of the power conversion module P1; the power indicator light L1 acts as a human-computer interaction. When the simulator is powered on normally, the current flows out from the positive pole of the power supply socket S1. First, the power indicator light L1 is lit. The user will be able to clearly see that the device is powered normally, and the leakage protection switch Q1 will be closed, and the entire device will be able to be used normally. If a dangerous situation such as leakage occurs after passing through the leakage protection switch Q1, the leakage protection switch Q1 will quickly cut off the circuit.

[0025] The power conversion module P1, the input voltage of the simulator is 220V single-phase power supply, and the power conversion module P1 converts 220V AC power into 12V DC power; The control module includes the equipment main control board CMU, which simulates the voltage and current requirements of the charging pile. The equipment main control board CMU can not only simulate the voltage requirements of the charging pile, but also set the voltage requirements of the charging pile on the host computer through the analysis module, so that users can flexibly adjust the simulated voltage requirements in different test scenarios to meet various test conditions and requirements. Through communication with the host computer, users can easily set parameters and monitor the test process. A communication module, used to simulate the communication process of charging the charging pile and to establish a connection between the charging pile and the simulator; The analysis module C1 is used to connect to the host computer to modify the charging voltage requirements, troubleshoot and debug the equipment main control board CMU.

[0026] On the basis of this embodiment, the communication module includes EVCC and CCS2, EVCC is a communication controller for simulating the communication process of charging of the charging pile, and CCS2 is a charging interface of the simulator for establishing a connection between the charging pile and the simulator.

[0027] On the basis of this embodiment, the device main control board CMU includes a DO-COM port, a DO-12V-1 port, a DO-12V-2 port, a CAN1 port and a CAN2 port, the analysis module C1 is a CAN analyzer, and the CAN analyzer includes a CAN1 port and a CAN2 port; the positive pole of the power conversion module P1 is connected to the positive pole of the device main control CMU, the DO-12V-1 port of the device main control board CMU, the DO-12V-2 port of the device main control board CMU and the positive pole of the communication controller EVCC, providing the required 12V power supply for the two digital output ports and providing power support for the communication controller EVCC; the negative pole of the power conversion module P1 is connected to the negative pole of the device main control board CMU, the DO-COM port of the device main control board CMU and the negative pole of the communication controller EVCC. The CAN1 port of the equipment main control board CMU is connected to the CAN1 port of the CAN analyzer, and the CAN2 port of the equipment main control board CMU is connected to the CAN2 port of the CAN analyzer; through this connection, the equipment main control board can exchange data with the CAN analyzer to realize the monitoring and analysis of the simulator communication data. At the same time, the CAN2 port of the equipment main control board CMU is connected to the CAN2 port of the CAN analyzer, further enhancing the communication capability and data analysis function of the simulator. In some embodiments of the present invention, a fault indicator light L3 is connected in series between the power conversion module P1 and the DO-12V-1 port of the device main control board CMU, and an operation indicator light L2 is connected in series between the power conversion module P1 and the DO-12V-2 port of the device main control board CMU.

[0028] The main control board CMU of the device can simulate the voltage requirement of the charging pile, and can also modify the required voltage of the simulated charging pile on the upper computer through the analysis module C1 to simulate the voltage requirement during the charging process, and flexibly adjust the simulated voltage requirement to meet different test scenarios; the second function is to control the simulator fault indicator light and the operation indicator light through the DO-12V-1 port and the DO-12V-2 port. When the gun head of the charging pile is inserted into the gun seat of the charging interface CCS2, the simulator operates normally and the operation indicator light L2 lights up. When the communication controller EVCC fails to communicate with the simulator, the fault indicator light L3 lights up. The third function is to connect the communication controller EVCC CAN2 port through the CAN2 port to communicate with the vehicle, and the CAN2 port can also be used to export the CAN2 port message through the CAN analyzer to analyze the vehicle-pile communication problem.

[0029] On the basis of this embodiment, the communication controller EVCC, as a key communication hub between electric vehicles and charging piles, has multiple important interfaces. These include CAN2 port, CP port and PE port. CAN2 port is an important channel for data transmission and can communicate and interact efficiently with other devices. The CP port plays a key control role in the charging process to ensure the stability and safety of the charging process. The PE port is a grounding port that provides reliable grounding protection to ensure the safety of equipment and users. The charging interface CCS2 includes a CP port and a PE port; these two interfaces are closely matched with the corresponding interfaces of the communication controller EVCC during the charging process. The CAN2 port of the communication controller EVCC is connected to the CAN2 port of the CAN analyzer. Through this connection mode, data transmission and information sharing between the two are realized. During the charging process, the CAN analyzer can monitor the working status of the communication controller EVCC in real time through this connection, obtain relevant data information, and provide strong support for fault diagnosis and performance analysis. At the same time, the communication controller EVCC can also interact with the CAN analyzer through this connection, receive instructions and parameter settings from the CAN analyzer, and further optimize the communication control during the charging process.

[0030] The CP port of the communication controller EVCC is connected to the CP port of the charging interface CCS2. During the charging process, this connection ensures the accurate transmission of the charging control signal. The connection between the CP ports enables the communication controller EVCC to accurately control the charging process, adjust the charging current and voltage according to the needs of the electric vehicle and the status of the charging pile, and achieve efficient and safe charging. The PE port of the communication controller EVCC is connected to the PE port of the charging interface CCS2 and grounded.

[0031] The role of the CAN analyzer is to modify the charging voltage requirement of the main control board CMU of the equipment through the host computer. The charging voltage can be easily modified only through the host computer software, without complex hardware operations, which improves the efficiency of debugging and reduces the risks and errors that may be caused by frequent hardware adjustments; the second role is to capture the messages during the use process. During the operation of the simulator, various data and instructions are transmitted between different modules through the CAN bus. When a fault occurs, the CAN analyzer can quickly capture these messages and provide key clues for analyzing the cause of the problem. Through a detailed analysis of the message, it is possible to understand the communication status, data transmission status and possible abnormal information between each module when the fault occurs. This helps to quickly locate the fault point, accurately determine the cause of the fault, and take effective measures to repair it. Whether it is a hardware fault or a software problem, the message capture function of the CAN analyzer can provide an important basis for troubleshooting and maintenance, greatly shortening the time for troubleshooting and improving the reliability and stability of the equipment.

[0032] Example 2 The present invention also provides a method for using a European standard DC charging simulator. When the simulator is used, the power supply socket S1 is connected to an external power source, such as a power strip, through a power cord; the gun head of the charging pile is connected to a communication module, and the communication module includes a charging interface CCS2 (that is, an electric vehicle charging interface) of the simulator. When in use, the gun head of the charging pile is inserted into this interface, and the charging pile is connected to the simulator; the main control board CMU of the device controls the simulator fault indicator light and the operation indicator light through the DO-12V-1 port and the DO-12V-2 port. When the gun head of the charging pile is inserted into the gun seat of the charging interface CCS2, the simulator is running normally, and the operation indicator light L2 is on. When the communication controller EVCC fails to communicate with the simulator, the fault indicator light L3 is on. The user is reminded that there is a problem with the simulator. The user can take prompt action according to the prompt of the fault indicator light to conduct a comprehensive inspection and repair of the simulator, thereby avoiding further expansion of the fault and reducing the loss and inconvenience caused by the simulator failure.

[0033] Introduction to the use of the host computer: Connect the computer to the CAN debugging interface of the simulation device, and use the host computer below to adjust the parameters that need to be set, set the simulation data, and perform various working condition debugging.

[0034] Similarly, it should be understood that in order to streamline and aid in understanding one or more of the various inventive aspects, in the above description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together into a single embodiment, figure, or description thereof. However, this disclosed method should not be interpreted as reflecting the following intention: that the claimed invention requires more features than those explicitly recited in each claim. Rather, as reflected in the claims, the inventive aspects lie in less than all the features of the individual embodiments previously disclosed. Therefore, the claims that follow the specific embodiment are hereby expressly incorporated into the specific embodiment, with each claim itself serving as a separate embodiment of the invention.

[0035] Although the present invention has been described according to a limited number of embodiments, it will be apparent to those skilled in the art, with the benefit of the above description, that other embodiments may be envisioned within the scope of the invention thus described. In addition, it should be noted that the language used in this specification is selected primarily for readability and teaching purposes, rather than for explaining or defining the subject matter of the present invention. Therefore, many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the appended claims. The disclosure of the present invention is illustrative, not restrictive, with respect to the scope of the present invention, which is defined by the appended claims.

Claims

1. A European standard DC charging simulator, characterized in that: It includes a power socket S1, a power conversion module P1, a control module, a communication module and an analysis module C1; Power socket S1, connect AC power to power the simulator; The power conversion module P1 is used to convert AC power into DC power to provide a stable power supply for the simulator; A communication module, used to simulate the communication process of charging the charging pile and to establish a connection between the charging pile and the simulator; The control module includes the equipment main control board CMU, which simulates the voltage and current requirements of the charging pile and establishes communication with the simulator through the communication module; The analysis module C1 is used to connect to the host computer to modify the charging voltage requirements, troubleshoot and debug the equipment main control board CMU.

2. A European standard DC charging simulator according to claim 1, characterized in that: The communication module includes a communication controller EVCC, which is used to simulate the communication process of charging the charging pile; and a charging interface CCS2, which is used to establish a connection between the charging pile and the simulator.

3. A European standard DC charging simulator according to claim 2, characterized in that: The power socket S1 is also connected to a power indicator light L1 and a leakage protection switch Q1; the positive pole of the power socket S1 is connected to the positive pole of the power indicator light L1 and the AC input side of the power conversion module P1 in sequence, and the negative pole of the power socket S1 is connected to the negative pole of the power indicator light L1 and the AC output side of the power conversion module P1; the leakage protection switch Q1 is connected to the AC input side of the power conversion module P1.

4. A European standard DC charging simulator according to claim 3, characterized in that: The equipment main control board CMU includes a DO-COM port, a DO-12V-1 port, a DO-12V-2 port, a CAN1 port and a CAN2 port. The analysis module C1 is a CAN analyzer, and the CAN analyzer includes a CAN1 port and a CAN2 port. The positive pole of the power conversion module P1 is connected to the positive pole of the equipment main control CMU, the DO-12V-1 port of the equipment main control board CMU, the DO-12V-2 port of the equipment main control board CMU and the positive pole of the communication controller EVCC, and the negative pole of the power conversion module P1 is connected to the negative pole of the equipment main control board CMU, the DO-COM port of the equipment main control board CMU and the negative pole of the communication controller EVCC; the CAN1 port of the equipment main control board CMU is connected to the CAN1 port of the CAN analyzer, and the CAN2 port of the equipment main control board CMU is connected to the CAN2 port of the CAN analyzer.

5. A European standard DC charging simulator according to claim 4, characterized in that: A fault indicator light L3 is connected in series between the power conversion module P1 and the DO-12V-1 port of the equipment main control board CMU, and an operation indicator light L2 is connected in series between the power conversion module P1 and the DO-12V-2 port of the equipment main control board CMU.

6. A European standard DC charging simulator according to claim 5, characterized in that: The communication controller EVCC includes a CAN2 port, a CP port and a PE port, and the charging interface CCS2 includes a CP port and a PE port; the CAN2 port of the communication controller EVCC is connected to the CAN2 port of the CAN analyzer, the CP port of the communication controller EVCC is connected to the CP port of the charging interface CCS2, and the PE port of the communication controller EVCC is connected to the PE port of the charging interface CCS2.

7. A European standard DC charging simulator according to claim 1, characterized in that: The input voltage of the simulator is 220V single-phase power supply, and the power conversion module P1 converts 220V AC power into 12V DC power.

8. A method for using a European standard DC charging simulator as claimed in any one of claims 1 to 7, characterized in that: The power supply socket S1 is connected to an AC power source, and the charging pile gun head is connected to a communication module.

9. The method for using a European standard DC charging simulator according to claim 8, characterized in that: When the communication controller EVCC fails to communicate with the simulator, the fault indicator light L3 is on.

10. The method for using a European standard DC charging simulator according to claim 8, characterized in that: When the charging pile establishes communication with the simulator through the charging interface CCS2, the running indicator light L2 lights up.

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