With the development of Connected Vehicle, various of on-board applications and functions rely on stable, reliable and fast-response wireless connections furtherly, making it more urgent and widespread for vehicles to be equipped with relevant antenna systems such as positioning and communication. There are many types of vehicle antenna systems, together with a wide range of installation locations and a complex electronic environment which brings a huge challenges to the development of antenna manufacturers and the matching of automobile OEMs. In order to carry out the R&D, matching and testing of the vehicle antenna system better, various parties have proposed a multi-dimensional test and evaluation methods, but there is still a lack of horizontal evaluation between them. This paper analyses the requirements of automotive antenna system evaluation, sorts out and compares the technical paths of various common solutions, summarizes the characteristics and differences of various solutions, and provides a research foundation for further optimizing the vehicle-level antenna system test and evaluation program.

With the rapid development of the automotive industry, vehicles are equipped with a variety of system functions. The realization of many of these functions depends on the stable, safe, and reliable positioning and timing information of the bottom layer. Vehicle-mounted satellite positioning systems are an important way for vehicles to obtain absolute positions and have been widely employed in other industries. However, the automotive industry has its special requirements, such as high positioning accuracy and confidence, extremely harsh vehicle regulations, reliability, and high safety, all of which need to be tested and evaluated on vehicle-mounted satellite positioning systems. By studying and putting forward the evaluation scheme for the vehicle-mounted satellite positioning system, this paper further ensures the accuracy, reliability, and stability of the time-space information provided by the system and supports the development of the automotive industry.

The high temperature operating life (HTOL) test is an important item in the reliability test of automobile chips. The goal of the HTOL test is to evaluate the durability of automobile chip products under high-temperature loads. Based on the common-used standards, calculation models, and related research experience of evaluating the reliability of electron devices at home and abroad, this paper focuses on the model of the high-temperature durability test model of automobile chips and analyzes different factors affecting the high-temperature operating life test. The general calculation and analysis model and method of the high-temperature operating life test of automobile chips are presented in this paper, which provides a reference for determining the indicators of the high-temperature operating life test of automobile chips.

This paper takes the vehicle antenna as the research object, and carries out a comparative study on vehicle antenna testing by improving the NF-FF transformation algorithm and combining the special application scenarios of vehicle testing. Research has shown that when the vehicle is used as the DUT, there is a significant difference in the near-field test data when the vehicle antenna is in the center and the geometric center of the vehicle is in the test center; however, through correct NF-FF transformation processing, both far-field radiation patterns are consistent. It shows that the far-field radiation information of the whole vehicle can be obtained under the processing of spherical near-field measurement and near-far-field transformation. This conclusion provides a basis for the promotion of wireless performance testing of the vehicle.