DYXNYC-12 Electric Vehicle Power Management (BMS) system experimental device

Choose a new energy vehicle  lithium iron phosphate power battery pack, a single battery (3.2V20AH, 24 strings in total), an all-in-one BMS battery management system with CAN bus, and a passive balancing function; truly presenting the core of the lithium iron phosphate power battery pack The connection control relationship between components, installation location and operating parameters, as well as safety precautions for high-voltage systems, and tr*n students' ability to analyze and handle lithium iron phosphate power battery pack (BMS) fault faults. It is suitable for understanding and verifying the power battery parameters of electric vehicles for real-time monitoring, fault diagnosis, SOC estimation, short-circuit protection, insulation detection, charge and discharge control, equalization and other functions, and can communicate with the on-board charger Information interaction, BMS teaching and tr*ning experiments to ensure efficient, reliable and safe operation of electric vehicles .

2. Functional features

1. A real and operable new energy power battery charging and discharging assembly that fully demonstrates the composition structure and logical control relationship of each m*n component.

2. The m*n components are installed on the tr*ning platform , and the electrical connection method is the same as that of the actual vehicle, which can be easily disassembled, allowing students to master the key points of disassembly and assembly of high-voltage system components and safety protection during the disassembly, assembly and wiring process.

3. The BMS battery management system has a passive balancing function and switch control protection (single disconnection, short circuit, overvoltage, undervoltage, overcurrent, overtemperature), communicates with the vehicle charger via CAN, and controls the operation of the vehicle charger through BMS. , estimate SOC (state of charge), etc.

3.1 It has single voltage data collection , total voltage data collection, current collection, and temperature collection.

3.2 It has complete fault level alarm functions, including voltage, current, temperature and other fault alarms.

3.3 has SOC estimation function.

3.4 It has charge and discharge control function.

3.5 has passive balancing management function.

3.6 System switch passive mechanical contacts.

4. The power battery pack display (7-inch touch screen) is installed on the panel. You can observe various parameters of the charging and discharging process, and understand the control logic of the charging and discharging process of the power battery pack and the changing rules of the m*n component parameters.

5. The tr*ning platform is equipped with a discharge module to simulate the vehicle energy consumption process. The size of the discharge current can be selected. The power battery pack is equipped with a new energy vehicle mechanical m*ntenance switch, and the upper cover can be opened for observation; high-voltage electrical connectors are all national standard products with reliable performance.

6. The tr*ning platform is equipped with a 12V power ground mechanical switch, which can disconnect the 12V ground at any time and cut off the power supply of the entire system.

7. The power battery pack output line is equipped with a mechanical disconnection emergency switch, which is suitable for easily disconnecting the m*n power circuit in an emergency.

8. The UV flat-panel printing color panel completely displays the working principle diagram of the power battery pack, charging and discharging and is equipped with detection terminals, which can detect parameter changes in various states in real time.

9. The tr*ning platform consists of a mobile tr*ning platform (with a principle panel). The tr*ning platform is placed horizontally and the m*n components are installed. 4 casters are installed on the bottom of the tr*ning platform, which allows flexible movement. The casters have self-locking devices and can be fixed in position. .

10. Equipped with a fault setting and assessment system, with no less than 15 fault points.

11. The equipment frame is constructed of two integrated all-aluminum alloy profiles, 40mm×40mm and 40mm×80mm, which are oil-resistant, corrosion-resistant and easy to clean. The countertop is 40CM wide and paved with 32mm thick colored high-density composite boards, which is durable and rust-free. , with 4 swivel casters with self-locking devices for easy movement.

12. Equipped with a linear discharge load system, which can read various parameters of the discharge process.

13. Equipped with CAN diagnostic system (including software and hardware), which can read various parameters and fault data of the charging and discharging process.

14. Equipped with teaching materials such as practical tr*ning guides, which fully describe the working principles, practical tr*ning projects, fault settings and analysis and other key points.

3. Technical specifications

1. Overall dimensions (mm): 1500×700×1700mm (length*width*height)

2. Input power: AC220V±10% 50Hz

3. Working power supply: DC12V

4. Power battery type: environmentally friendly lithium iron phosphate power battery (single battery 3.2V 20AH, 24 strings)

5. Working temperature: -20°～60°

6.BMS lithium battery management machine: with CAN communication

7. Power battery pack display: 7-inch touch screen

8. High voltage and high current relay: coil voltage: 12VDC, maximum rated operating voltage: 1000VDC, rated current: 400A.

4. Practical tr*ning and experimental projects

1. Cognition of new energy power battery pack (BMS) control principles.

2. Functional understanding of the m*n components of the new energy power battery pack (BMS).

3. Understand the logical control relationships of new energy power battery packs (BMS) in various states, and understand the changing patterns of parameters such as current, voltage, battery voltage difference, and battery temperature.

4. Practical tr*ning experiment on how BMS collects the pressure difference of the power battery pack and controls the charging and discharging process.

5. Practical tr*ning experiment on how BMS collects the temperature difference of power battery pack and controls the charging and discharging process.

6. Safety precautions for the operation of new energy high-voltage systems, and practical tr*ning experiments on high-voltage connector plugging and unplugging methods.

7. New energy power battery pack (BMS) fault analysis and diagnosis.

8. Practical tr*ning on disassembly, assembly and m*ntenance of new energy power battery packs (BMS).

9. New energy power battery (BMS) management system CAN bus testing and control tr*ning.

5. Basic configuration

Lithium iron phosphate power battery pack and iron battery box (single battery 3.2V 20AH, 24 strings), BMS lithium battery management machine, power battery pack touch display, vehicle charger, national standard charging socket, national standard charging gun, emergency disconnect Electric switch, Hall current sensor , DC contactor (including charging relay, total positive relay, total negative relay, precharge relay), DC-DC converter (72V-12V30A), auxiliary battery (12V45AH), discharge control relay and Discharge load resistor, precharge resistor, movable tr*ning platform (1500×700×1700mm with self-locking casters, principle panel with detection terminals, panel 1448×940mm), fault simulation and troubleshooting device, equipment operating instructions.