With the rapid development of new energy vehicles, wireless charging technology has gradually become an important development direction in the field of electric vehicle charging. The electric vehicle wireless charger testing system, as a key tool to ensure the performance and safety of wireless charging equipment, is receiving increasing attention. It not only meets strict industry standards, but also provides comprehensive testing support for the research and development, production, and application of wireless charging technology.

1、 Working principle

The electric vehicle wireless charger testing system is based on wireless power transfer (WPT) technology, and comprehensively tests wireless charging devices by simulating actual usage scenarios. The system typically includes a ground transmitter (GA) and a vehicle mounted receiver (VA), which ensure the performance and safety of the wireless charging system by accurately controlling and measuring parameters such as power transmission efficiency, misalignment error, electromagnetic compatibility, etc. between the two.

The core functions of the testing system include:

1. Electrical performance testing: Measure input current, voltage, power factor, harmonic current and other parameters to evaluate the electrical performance of charging equipment.

2. Efficiency and misalignment testing: By simulating different positional deviations (such as X-axis, Y-axis misalignment, and changes in coil spacing), measure the energy transmission efficiency to ensure that even if there is positional deviation in actual use, the charging efficiency can be maintained at a high level.

3. Electromagnetic compatibility testing: Check whether wireless charging devices comply with electromagnetic radiation standards during operation to avoid electromagnetic interference to surrounding devices and personnel.

4. Safety performance testing: including overload protection, short circuit testing, foreign object detection (FOD) and other functions to ensure the safety of the charging process.

2、 System architecture and functionality

1. Programmable power supply and load: Simulate the characteristics of the power grid and battery, providing a stable testing environment.

2. Power analyzer and oscilloscope: used to accurately measure various parameters of charging equipment, including voltage, current, power, ripple, etc.

3. Automated testing platform: Through XYZ three-axis or six axis mechanical platforms, simulate the misalignment of vehicles during parking to achieve automated testing.

4. Testing software: Integrated control software that supports automated testing processes, data collection and analysis, and generates detailed testing reports.

3、 Application Fields and Advantages

1. R&D and design phase: Assist engineers in optimizing the performance of wireless charging devices, improving transmission efficiency and electromagnetic compatibility.

2. Production and quality control: Ensure that each batch of wireless charging equipment meets industry standards and safety requirements.

3. Vehicle testing: Conduct performance testing on the vehicle with installed wireless charging system to evaluate its performance in actual use.

The advantages of this system are:

-High precision and efficiency: Automated testing platforms and precise measuring equipment have greatly improved testing efficiency and data accuracy.

-Comprehensive testing projects: covering multiple aspects such as electrical performance, efficiency, electromagnetic compatibility, safety performance, etc., meeting international and domestic standards.

-Flexible customization: Testing projects and platforms can be customized according to the needs of different customers.

The electric vehicle wireless charger testing system, as an important support for the development of wireless charging technology, has become a key tool in research and development, production, and application due to its high precision, high efficiency, and comprehensive testing capabilities. It not only ensures the performance and safety of wireless charging devices, but also provides solid technical support for the further development of wireless charging technology in the future.