1. Connect to the entire vehicle through a dedicated wiring harness. After disconnecting the dedicated wiring harness, the entire vehicle functions are complete, maintaining the integrity of all functions and wiring harnesses of the original vehicle.
2. The entire vehicle structure is complete, without damaging any wiring harness of the original vehicle, and all control systems, sensors, and actuators are complete and can operate normally.
3. The dynamic and static signal parameters of the entire vehicle can be displayed through the original instrument panel (such as energy monitor screen, speed, gear display, and various working condition indicator lights).
4. The module assessment box adopts an all aluminum frame structure that reduces overall weight and is portable, with a hidden sliding fault setting mechanism.
5. Multifunctional placement management cabinet, integrated with the IOT for unified management and allocation of device usage permissions, can achieve member usage management, usage record query, etc. It can store module assessment boxes and wiring harnesses, install 4 3-inch wear-resistant nylon casters, and move flexibly. At the same time, 2 casters are equipped with self-locking devices, which can be fixed at any time.
6. After completing the testing and fault training, connect the control signal back to the original vehicle control unit. The total number of fault points in the entire vehicle should not be less than 180, and the plug should be the same as the original vehicle wiring harness. The connecting wire should use national standard Teflon automotive special wire, with a voltage resistance of not less than 600V, to ensure the normal circuit signal of the entire vehicle. On the upper part of the measurement box, the original vehicle control unit pins are drawn and equipped with 2mm gold-plated terminals for detection. The real-time signals of the module system are directly measured on the terminals to grasp the variation patterns of different control unit parameters. The measurement box adopts a hidden sliding fault setting mechanism design, and an internal fault setting system is installed. It can perform short circuit, open circuit, virtual connection, and other faults on any line of the control unit.
7. Through a dedicated integrated modular detection and fault setting box, connected in series with the original vehicle wiring harness, the control signal is led out to the modular detection and fault setting box for detection and fault setting. The output interfaces are the main control parts of the original vehicle, including the vehicle controller VCU control unit, power pool management system BMS control unit, drive system three in one motor controller control unit, high-voltage three in one charging and distribution assembly control unit Automatic air conditioning management control unit, gear control unit, combination instrument control unit, gateway control unit, etc. After detecting the fault, connect the control signal back to the original vehicle control unit, with a total of no less than 180 fault points. The plug is the same as the original vehicle wiring harness, and the connecting wire is made of national standard Teflon automotive special wire, with a withstand voltage of no less than 600V, to ensure the normal circuit signal of the entire vehicle. On the upper part of the measurement box, the main control units and connector terminals of the original vehicle are drawn. Real time signals of the entire vehicle are directly measured on the terminals to grasp the variation patterns of different control unit parameters. The bottom of the measurement box adopts a push-pull design, and a fault setting system is installed internally. It can cause faults such as short circuit, open circuit, and poor contact on any line of the control unit.
8. The VCU control unit teaching and training system for the vehicle controller can detect signals including accelerator pedal, brake pedal, vacuum pressure sensor, brake vacuum booster pump, high-pressure water pump, infinite fan, etc. It can perform short circuit, open circuit, poor contact and other faults on any circuit of the control unit.
9. BMS control unit teaching and training system for power battery management system, which can detect signals including DC charging port, AC charging port, low-voltage wiring harness of power battery pack, etc. It can carry out faults such as short circuit, open circuit, poor contact, etc. on any line of the control unit.
10. The teaching and training system for the three in one motor controller control unit of the drive system can detect signals such as motor controller communication, working power supply, and ground wire, and can carry out faults such as short circuit, open circuit, and poor contact on any line of the control unit.
11. High voltage three in one charging and distribution assembly control unit teaching and training system, which can detect signals including charging and distribution assembly communication, DC charging port, AC charging port, working power supply and ground wire, etc., and can carry out short circuit, open circuit, poor contact and other faults on any line of the control unit.
12. Automatic air conditioning management and control unit teaching and training system, which can detect signals, including G21 (A), G21 (B), G21 (C), cold and warm circulation motor, inner and outer circulation motor, air outlet mode circulation motor, pressure sensor, driver's foot blowing channel sensor, driver's face blowing channel sensor, electronic expansion valve (air conditioning), pressure temperature sensor (air conditioning), sunlight intensity sensor, evaporator temperature sensor, outdoor temperature sensor, indoor temperature sensor, electronic expansion valve (battery thermal management), water temperature sensor, Four way water valve, etc., can cause faults such as short circuit, open circuit, poor contact, etc. on any line of the control unit.
13. The teaching and training system for gear control unit can detect signals such as gear switch signals, gear communication signals, working power and ground wires, and can perform faults such as short circuits, open circuits, and poor contact on any line of the control unit.
14. The combination instrument control unit teaching and training system can detect signals including brake fluid level, combination instrument communication, working power supply and ground wire, and can perform faults such as short circuit, open circuit, poor contact, etc. on any line of the control unit.
15. The gateway control unit teaching and training system can detect signals such as comfort net, power net, ESC net working power supply and ground wire, and can perform short circuit, open circuit, poor contact and other faults on any line of the control unit.
16. The detection panel is made of 4mm thick advanced aluminum plastic plate that is corrosion-resistant, impact-resistant, pollution resistant, fireproof, and moisture-proof. The surface is treated with a special process of spraying primer. The panel is printed with indelible color control units, actuators, and sensor terminal diagrams. And install gold-plated detection terminals, allowing students to visually compare the circuit diagram and the original vehicle object, measure and analyze the working principle and signal transmission process of each control system.
17. Adopting mechanical fault setting to assess the system, ensuring stable and reliable performance.
18. Provide an electronic version of the original vehicle maintenance manual, circuit diagram, and training manual to guide fault setting and troubleshooting.

1. Power battery
Original BYD Qin EV nickel cobalt manganese lithium ternary power battery. The total capacity of the power battery pack is 408.8V130AH (approximately 53.1 kWh), consisting of a total of 112 individual batteries connected in series. Adopting a distributed battery management system, consisting of one battery management controller (BMC), multiple battery information collectors (BICs), and one set of power battery sampling lines. The power battery adopts a battery liquid cooling and PTC heating system to adjust the temperature.
2. High voltage three in one charging and distribution assembly (including DC/DC converter, on-board charger OBC, and high voltage distribution box PDU)
Cooling method: water cooling
Control module: IGBT
Maximum output capacity: 180KW
Maximum output current: 270A
Protection level: IP67
OBC charging power: 6.6KW
OBC type: unidirectional, isolated
DC rated output voltage: 13.8V
DC rated output current: 145A
3. Three in one drive system (including drive motor, motor controller, and reducer)
Motor type: permanent magnet synchronous drive motor
Continuous power: not less than 35KW
Peak power: not less than 100KW
Continuous torque: 70N. m
Peak torque: 180N. m
Maximum speed: 12100rpm
Cooling method: water cooling
Transmission speed ratio: 10.7
4. Air conditioning and heating system:
Electric air conditioning, working voltage 408.8V
Electric PTC heating water circulation
5. Other parameters are as follows:
Vehicle body: approximately 4678mm in length. Width: 1770mm. Height: 1500mm. Wheelbase: 2670mm.
Front wheelbase: approximately 1525mm. Rear wheelbase: approximately 1520mm.

1. One online testing teaching aid vehicle (BYD Qin EV 2019 pure electric vehicle).
2. One complete set of dedicated docking harness.
3. One complete set of modular detection and fault setting box.
4. One multi-functional placement management cabinet.