Power battery and bms practical training system

Abstract

The application belongs to the technical field of new energy automobile equipment, and particularly relates to a power battery and BMS (Battery Management System) practical training system capable of simulating various working states and fault diagnosis of the BMS, which comprises a power battery and BMS system practical training rack, a power battery and BMS practical training system and a teaching demonstration board, the power battery and BMS practical training system and the teaching demonstration board are respectively in communication connection with the power battery and BMS system practical training rack, and the power battery and BMS system practical training rack comprises a battery box, a junction box and a console, and the console is respectively connected with an external power supply and the junction box, the application provides a powerful support tool for education and training in the field of new energy automobiles, and significantly improves the teaching quality and technical level.

Description

Technical Field

[0001] This invention belongs to the field of new energy vehicle equipment technology, specifically relating to a power battery and BMS training system capable of simulating the working states and fault diagnosis of various battery management systems (BMS). Background Technology

[0002] Currently, existing power battery pack training benches typically include a simulated battery pack, a basic battery management system (BMS), and simple fault diagnosis functions. A typical structure is as follows:

[0003] Simulated battery pack: Composed of multiple simulated battery cells connected in series or parallel, used to simulate the working state of an actual power battery pack.

[0004] Battery Management System (BMS): Provides connectivity to external control systems, allowing users to monitor battery status parameters such as voltage.

[0005] Fault diagnosis module: It has basic fault detection functions and can identify some common battery faults, such as overvoltage and undervoltage.

[0006] Test demonstration board: Meets basic voltage detection functions.

[0007] Host computer operating system: Develop a basic operating system to meet basic fault setting and triggering functions.

[0008] Connection method: Hard wire connection.

[0009] These training benches are designed to provide trainees with a platform to learn the basic operating principles and fault detection of power battery packs. However, the existing designs have limitations in some key aspects.

[0010] Disadvantages of existing technologies:

[0011] Although existing technologies can meet some basic teaching needs, significant technical problems and shortcomings still exist in the following aspects:

[0012] Because a simulated battery pack consists of multiple simulated battery cells connected in series or parallel, and these simulated battery cells are identical in composition to existing vehicle battery packs—that is, using multiple real batteries connected in series and parallel to form a simulated battery pack—the hardware connections of the battery pack are fixed once established. Therefore, the functionality of this simulated battery pack is limited: it can typically only simulate a few preset operating states and fault modes, and cannot fully cover the various complex operating conditions that may occur in real-world applications. For example, it may not be able to accurately simulate changes in battery performance under different temperature conditions, or the impact of abnormal temperatures on the battery pack, because overheating can pose a safety hazard to real batteries.

[0013] Lack of real-time interactivity and flexibility: Most existing training benches lack the ability to adjust and simulate various operating conditions in real time, making it difficult for trainees to experience the process of adjusting battery management strategies under dynamic changes. Furthermore, they typically do not support user-defined new fault scenarios or operating condition settings, limiting the richness and diversity of teaching content.

[0014] Insufficient data monitoring and analysis capabilities: Current training platforms are relatively weak in data collection and analysis, often only providing limited data points and lacking in-depth data analysis tools to help students understand and master complex battery behavior patterns.

[0015] In conclusion, although current power battery pack training platforms can meet teaching needs to a certain extent, their functional limitations, lack of flexibility, and insufficient data processing capabilities still restrict their effectiveness in a wider range of application scenarios. Therefore, it is necessary to develop a new type of power battery pack training platform to overcome these shortcomings and better serve the needs of the education and training sector. Summary of the Invention

[0016] The purpose of this invention is to overcome the shortcomings of the prior art and develop a power battery and BMS training system that can simulate the working states and fault diagnosis of various battery management systems (BMS).

[0017] The present invention is implemented as follows: a power battery and BMS training system, characterized in that: it includes a power battery and BMS system training platform, a power battery and BMS system training subsystem, and a teaching demonstration board, wherein the power battery and BMS system training subsystem and the teaching demonstration board are respectively communicatively connected to the power battery and BMS system training platform.

[0018] The power battery and BMS system training platform includes a battery box, a junction box, and a control console, which are connected to an external power supply and the junction box, respectively.

[0019] The control console includes a main controller, a multi-channel voltage acquisition module, a multi-channel voltage distributor module, a multi-channel electric heating module, and a multi-channel temperature measurement module. The battery box is designed to resemble an on-board power battery module and has multiple measurement points. The junction box includes multiple circuits, with each circuit's two ends connected to a voltage distribution module in the control console and a measurement point in the battery box, respectively. Each voltage distributor module is also connected to a voltage acquisition module. Between two measurement points in the battery box, an electric heating module and a temperature measurement module are also connected. The electric heating module is connected to the output of the main controller, and the temperature measurement module is connected to the input of the main controller.

[0020] Further optimization involves installing wireless communication modules within both the power battery and BMS system training platform and the teaching demonstration board, enabling data communication between the power battery and BMS system training platform and the teaching demonstration board via these wireless communication modules.

[0021] Further optimization involves wired connection between the power battery and BMS system training platform and the teaching demonstration board for data communication.

[0022] Further optimization includes a power battery and BMS training subsystem comprising a programmable controller and a touchscreen connected to it; the programmable controller is also connected to the control console.

[0023] Further optimization involves a communication connection between the teaching demonstration board and the control console. The teaching demonstration board's panel displays a circuit diagram based on the power battery and BMS. Detection points are set on the circuit diagram, and these measurement points correspond to multiple measurement points set on the battery box. Standardized detection terminals are set on the detection points.

[0024] This device has the following advantages:

[0025] (1) Safety guarantee, making you more at ease when using it.

[0026] The battery box in the power battery and BMS system training bench is designed to resemble individual vehicle power battery modules. However, in reality, the training bench uses a multi-channel voltage distributor module to simulate the voltage information of a single cell, a group, or the entire vehicle power battery. The simulated electrical signals are then connected to measurement points on the battery box. These voltages are all low-voltage and pose no harm to personnel. During teaching and demonstrations, it appears that students are measuring the measurement points on the battery box, giving the impression of measuring real battery data. However, in reality, the voltage distributor module is simply simulating the distributed electrical signals based on the actual battery data. Furthermore, these electrical signals can be changed as needed, simulating the operating states and fault modes of the power battery pack under various complex conditions, including accurately simulating battery pack performance changes under different temperature conditions and the impact of temperature anomalies on the battery pack.

[0027] (2) It has temperature simulation and setting functions.

[0028] Since the surface of the battery box in the power battery and BMS system training bench is only designed to resemble individual vehicle power battery modules, and there are no actual batteries inside, simulating battery temperature changes inside the battery box does not pose the risk of real battery cell bulging or explosion. Therefore, this device includes a temperature simulation and setting function, which can accurately reproduce temperature changes under different operating environments and allows users to set temperature parameters as needed based on program data. This function helps to realistically reproduce equipment operating scenarios, allowing trainees to more comprehensively understand the impact of temperature on system performance and improve their fault diagnosis and problem-solving capabilities.

[0029] (3) Product controllability enhances user experience

[0030] This product uses a main controller to flexibly set parameters such as voltage and temperature, and monitor system status in real time, meeting the needs of teaching demonstrations and personalized applications. It supports both wired and wireless data transmission methods, enhancing flexibility and scalability, and providing users with a more convenient operating experience.

[0031] (4) Deep integration of teaching materials and teaching aids to improve teaching efficiency

[0032] This product deeply integrates maintenance materials, teaching materials, and circuit diagrams with the training system. Through interactive circuit diagram displays, detailed disassembly and assembly instructions, and fault detection simulations, it helps students master theoretical knowledge in practice and significantly improves learning outcomes.

[0033] This invention provides a powerful support tool for education and training in the field of new energy vehicles, significantly improving teaching quality and technical level. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the structure of this device.

[0035] Figure 2 This is a block diagram illustrating the control principle of this device. Detailed Implementation

[0036] In this embodiment, with Figure 1 and Figure 2 As shown, a power battery and BMS training system includes a power battery and BMS system training platform 1, a power battery and BMS system training subsystem 2, and a teaching demonstration board 3. The power battery and BMS system training subsystem 2 and the teaching demonstration board 3 are respectively connected to the power battery and BMS system training platform 1 for transmitting relevant instructions and detected signal data values.

[0037] Both the power battery and BMS system training platform 1 and the teaching demonstration board 3 are equipped with wireless communication modules. Data communication between the power battery and BMS system training platform 1 and the teaching demonstration board 3 is achieved through wireless communication modules. This means that various electrical and temperature signals from the power battery and BMS system training platform 1 are transmitted to the teaching demonstration board 3. When the instructor or students use measuring tools to test the circuit diagram detection points on the teaching demonstration board 3, they can measure the same electrical and temperature signals as the corresponding circuits in the power battery and BMS system training platform 1. Through interactive circuit diagram display and fault detection simulation, students can master theoretical knowledge in practice, significantly improve learning outcomes, and enhance teaching efficiency.

[0038] When the power battery and BMS system training platform 1 and the teaching demonstration board 3 are connected via a wireless communication module, the spatial limitations of traditional wired connections are reduced, significantly improving ease of use and flexibility. Of course, the power battery and BMS system training platform 1 and the teaching demonstration board 3 can also use traditional wired communication connections.

[0039] The power battery and BMS system training platform 1 includes a battery box 1-1, a junction box, and a control console 1-2. The control console 1-2 is connected to an external power supply and the junction box, respectively. The control console 1-2 converts the external power supply to simulate the electrical signals of the power battery.

[0040] The control console 1-2 includes a main controller, a multi-channel voltage acquisition module, a multi-channel voltage distributor module, a multi-channel electric heating module, and a multi-channel temperature measurement module. The temperature measurement module is a temperature transmitter used to convert the temperature at different locations within the battery box 1-1 into an electrical signal and transmit this signal to the main controller. The battery box is designed to resemble an onboard power battery module and has multiple measurement points corresponding to individual battery cells and / or battery packs. The power battery and BMS system training bench 1 aims to achieve functions such as data acquisition, fault setting, temperature monitoring, and power management.

[0041] The junction box also includes multiple circuits. The two ends of each circuit are connected to the output of a voltage distribution module in the control console and a measurement point on the battery box, respectively. The voltage distribution module in the control console 1-2 converts the incoming power from the external power supply to obtain the battery electrical signal to be simulated, and transmits the electrical signal to the multiple measurement points set on the battery box.

[0042] Each voltage distributor module is also connected to a voltage acquisition module. Between the two measurement points on the battery pack, there is also an electric heating module and a temperature measurement module. The electric heating module is connected to the output of the main controller, and the temperature measurement module is connected to the input of the main controller. This is used to simulate and collect data on the temperature changes of the battery pack under real-world operating conditions, and the impact of these temperature changes on the battery state. These temperatures have a corresponding matching relationship with the battery electrical signals, and this correspondence has been stored within the power battery and BMS training system. When instructors and students use this system, they are only measuring a demonstrative state value, not the actual battery pack data. However, this demonstrative state value has a one-to-one correspondence with the actual battery pack data.

[0043] The power battery and BMS training subsystem 2 includes a programmable controller and a touch screen that is communicatively connected to it. The programmable controller is communicatively connected to the console. The programmable controller is responsible for receiving instructions from the touch screen (i.e., the user interface) and sending instructions to the console according to these instructions. It dynamically adjusts the working state of the power battery and BMS system training platform 1 and receives various electrical signals and temperature signals collected by the console.

[0044] The teaching demonstration board 3 is communicatively connected to the control console 1-2; in this embodiment, wireless communication is preferred. The panel of the teaching demonstration board 3 displays a circuit diagram based on the power battery and BMS (Battery Management System). Test points are set on the circuit diagram to facilitate users' intuitive understanding of the system structure and working principle. These test points correspond to multiple test points on the battery box, and standardized test terminals are provided at the test points for convenient measurement and diagnosis. The teaching demonstration board 3 is equipped with a microcontroller, a voltage distributor, and an electric heating module. After the microcontroller communicates with the wireless communication module inside the teaching demonstration board 3, it controls the voltage distributor and the electric heating module to simulate the same working state as the power battery and BMS system training bench 1. This ensures that the data measured by the instructor or student at the measurement point on the teaching demonstration board 3 is the same as the data measured on the battery box of the power battery and BMS system training bench 1. This design not only improves the convenience of the testing operation but also ensures the accuracy of the measurement process, providing strong support for users to conduct fault analysis.

[0045] This invention provides a powerful support tool for education and training in the field of new energy vehicles, significantly improving teaching quality and technical level.

Claims

1. A power battery and BMS training system, characterized in that: The system includes a power battery and BMS system training platform, a power battery and BMS training subsystem, and a teaching demonstration board. The power battery and BMS training subsystem and the teaching demonstration board are respectively connected to the power battery and BMS system training platform for communication. The power battery and BMS system training platform includes a battery box, a junction box, and a control console. The control console is connected to an external power supply and the junction box, respectively. The control console includes a main controller, a multi-channel voltage acquisition module, a multi-channel voltage distributor module, a multi-channel electric heating module, and a multi-channel temperature measurement module. The battery box is designed to resemble an on-board power battery module and has multiple measurement points. The junction box includes multiple circuits, with each circuit's two ends connected to a voltage distribution module in the control console and a measurement point in the battery box, respectively. Each voltage distributor module is also connected to a voltage acquisition module. Between two measurement points in the battery box, an electric heating module and a temperature measurement module are also connected. The electric heating module is connected to the output of the main controller, and the temperature measurement module is connected to the input of the main controller.

2. The power battery and BMS training system according to claim 1, characterized in that: Both the power battery and BMS system training platform and the teaching demonstration board are equipped with wireless communication modules, and data communication between the power battery and BMS system training platform and the teaching demonstration board is carried out through the wireless communication modules.

3. The power battery and BMS training system according to claim 1, characterized in that: The power battery and BMS system training platform and teaching demonstration board are connected by wires for data communication.

4. The power battery and BMS training system according to claim 1, characterized in that: The power battery and BMS training subsystem includes a programmable controller and a touch screen that is connected to it; the programmable controller is connected to the control console.

5. The power battery and BMS training system according to claim 4, characterized in that: The teaching demonstration board is connected to the control console. The panel of the teaching demonstration board is printed with a circuit diagram based on the power battery and BMS. The circuit diagram is set with test points, which correspond to multiple test points on the battery box. The test points are equipped with standardized test terminals.

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