Research on the testing and evaluation system of power battery system for new energy vehicles

With the continuous improvement of global environmental protection requirements, people's attention to new energy vehicles is also increasing. As an important alternative to traditional fuel vehicles, one of the core technologies of new energy vehicles is the power battery system. It is crucial to test and evaluate the power battery system to ensure the safety, reliability, and performance of new energy vehicles. The objective of this study is to construct a testing system for evaluating the power battery system of new energy vehicles. Firstly, key indicators for testing power battery systems were determined through literature review and research, including battery capacity, charge and discharge performance, cycle life, and temperature characteristics. Establish corresponding testing methods and standards for these testing indicators. At the same time, cycle life testing is also conducted to simulate the long-term stability of the battery system in actual use. Through experiments, it has been proven that the proposed testing and evaluation system is feasible and effective. The experimental results show that the testing based on this evaluation system can accurately evaluate the performance of the power battery system and provide reference for the research and production of new energy vehicles.