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  • Xianzhou Li
    Automotive Digest. 2025, (3): 17-23.

    Lightweight is one of the key technologies to improve the range of new energy vehicles. How to achieve a balance between cost and weight reduction is a challenge faced by major car companies. By collecting and organizing lightweight manufacturing, assembly, and design technologies, feasible technical solutions are explained through examples of typical parts in the body, interior and exterior decorations, chassis, and three electrical fields. Research suggests that lightweight materials and component structure optimization are generally used to achieve light weighting. Among them, steel aluminum hybrid body, integrated die-casting, and component integration design are currently hot topics and also the direction for the development of vehicle weight reduction technology.

  • Jinghe Li, Yue Hu, Jinming Wang, Chen Yao, Qiulin Kou
    Automotive Digest. 2025, (2): 32-39.

    By introducing wireless charging into the field of electric vehicles, the convenience and safety of electric vehicle charging can be effectively improved, and users can complete charging without plugging and unplugging the charging gun, which greatly reduces the extra burden of charging on users. To address the complex application scenario involving multiple vehicles and multiple charging piles, a multi-to-multi wireless charging system solution based on central node architecture is necessary. First, the concept of a central node is introduced among the ground-side equipment, with the central node responsible for managing multiple ground-side devices. The central node communicates with these devices via the Controller Area Network (CAN), forming a local network. Second, the solution proposes a set of addressing and communication mechanisms within the local network to effectively manage the ground-side devices. Finally, in order to realize that the vehicle assemblies can recognize each other with any ground assemblies, this solution introduces a method to recognize the ground assemblies by detecting the ground coil current frequency.

  • Ziyu Liu, Shuxing Chen, Zhendong Liu, Haiyum Bu, Yiling Shi
    Automotive Digest. 2025, (2): 6-12.

    Currently, foreign automotive control chips dominate the design and development of powertrain domain controllers. To address this technological bottleneck, there is a growing trend towards adopting domestically produced chips alongside domestically developed AUTOSAR operating systems. The research focuses on the application and optimization of data caching technology. In response to the challenge of cache data consistency encountered in the development of domestically produced chips, various mechanisms for data synchronization and optimization schemes for cache strategy have been proposed, effectively mitigating the risk of data inconsistency. Furthermore, by designing efficient data caching strategies, the instruction execution efficiency of the controller has been significantly improved, and experiments have been designed to verify these improvements.

  • Haiyan He, Dike Lu, Fei Lei, Mingqi Huang
    Automotive Digest. 2025, (2): 57-62.

    Aiming at the “autonomous service vehicle” with driverless attributes and specific functional attributes, such as driverless delivery vehicles and sweeper, this paper firstly interprets the relevant domestic and foreign policies, and sorts out the policy suggestions and management mode exploration. Secondly, it investigates the application scenarios and key technologies of autonomous service vehicle that have been applied in the ground, including the drive-by-wire chassis, control system, human-computer interaction and supervision platform, and the standards that can be referred to in its design. Through policy analysis, product features and key technologies, the problems and requirements of design, manufacturing, access and supervision faced by the whole life cycle of autonomous service vehicle are deepened. Based on this, suggestions on the construction of a regulatory system are put forward from the aspects of technical standards and certification, testing and evaluation, information security, supervision and law enforcement, and international cooperation.

  • Jiawen Lü, Mulong Zhao, Jicheng Yu, Bo Liao, Hang Gao
    Automotive Digest. 2025, (2): 40-43.

    To enhance the stability and reliability of automobiles while ensuring their safe and efficient operation, a comparative analysis is conducted on 5 representative 48 V power system solutions: PWM controller, switching power supply buck converter, switching power supply controller, LLC transformer, and entry protector power supply scheme. The solutions are thoroughly compared in terms of integration, complexity, cost, and other relevant factors. A systematic evaluation of their advantages, disadvantages, and application scenarios is performed to address the functional requirements of different vehicles in various operating environments. This analysis serves as a valuable reference for automotive researchers and developers in selecting the appropriate power conversion scheme and aligning it with vehicle models based on actual product application needs.

  • Xuejing Yang, Yunyao Zhu, Yang Wen
    Automotive Digest. 2025, (2): 52-56.

    The increasing application of Navigate on Autopilot functions has introduced new safety risks such as driver disengagement, misuse, and abuse. Compared to other driving assistance functions in the past, Novigate on Autopilot functions possess greater complexity and higher risks. In order to prevent the potential safety risks associated with Navigate on Autopilot function vehicles, this paper takes into account domestic automobile industry actual situation. This introduces and conducts an in-depth analysis of the latest policy UN R171 released by United Nation Economic Commission for Europe and offers suggestions for industrial development, significant to China’s management and enterprise development.

  • Jianming Deng, Xunfei Gong, Qin Yu, Huachun Fan, Feng Luo
    Automotive Digest. 2025, (2): 18-22.

    The development of electric vehicles is crucial for addressing the energy crisis and environmental challenges. To analyze the key technologies and propose innovative directions for advancing new energy vehicles, this paper based on the “Energy-Saving and New Energy Vehicle Technology Roadmap 2.0,” provides an overview of the critical technologies and performance metrics of traction motors and motor controllers within electric propulsion systems. By examining the current status and challenges of these systems, the paper forecasts future development trends and proposes innovative directions in motor design, control algorithms, thermal management, and functional safety. These insights aim to contribute to the further development of electric propulsion technologies in China’s new energy vehicle sector.

  • Huijiang Yan, Qiang Lin, Ligang Dang
    Automotive Digest. 2025, (2): 44-51.

    Currently, the autonomous driving industry is entering a crucial window for commercialization and deployment, and a comprehensive policy system is urgently needed to be supported.Some developed countries have accumulated useful experience in the formulation of autonomous driving policies, which can serve as a reference.In order to establish a sound policy system for the autonomous driving industry, promote technological innovation and progress in autonomous driving, this paper compares and analyzes the development trajectories and distinctive features of the autonomous driving policies in the United States, Germany, the United Kingdom, and China, explores the trend of autonomous driving industry policies, and points out the challenges of autonomous driving policies development in China.Finally, development suggestions for improving the policy system of autonomous driving are proposed from three aspects: improving the institutional system, encouraging theoretical innovation, and increasing funding investment.

  • Yandong Han, Zetian Gao, Zhao Yu, Yuanke Guo, Xing Liu, Jiaoyang Wu
    Automotive Digest. 2025, (2): 1-5.

    With the development of automotive electronics industry, AUTOSAR has gradually become the mainstream development architecture of Oems and parts suppliers, and is used in the development of vehicle domain controller application software. However, the development process of applying AUTOSAR to vehicle domain controller application software is not perfect, and there is a lack of general, comprehensive and efficient application software development method. To solve this problem, based on the basic theory of AUTOSAR, the system architecture and related interfaces of AUTOSAR are expounded, and the whole process of extracting data dictionary content from ARXML file, generating interface model, building control model, generating model code and releasing application code is proposed. The proposed development method of vehicle domain controller application software adopts mature development tools or automated scripts to realize each link, which ensures the universality of the method, can ensure the quality of software development, improve the efficiency of software development, and thus reduce the development cost.

  • Dezhi Gao, Shuxing Chen, Chunjin Wang, Endong Wang, Zongxing Wang
    Automotive Digest. 2025, (2): 13-17.

    Aiming at the problems of complicated and repetitive integration and testing which are inefficient in automotive electronics software development, a continuous integration system for automotive engine ECU software based on Jenkins is designed. This method combines Jenkins continuous integration technology and automotive embedded software development technology and connects development process nodes into an automated process which is called Jenkins-based electronics software continuous integration technology. The development process nodes include SVN software version management, HighTec integrated compilation, remote flashing of target ECU, software integration test and mail notification. This Jenkins system can substaintially shorten the development cycle of software iterative upgrades and avoid human integration operation errors.