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With the ever-increasing requirements on vehicle performance, as well as the trend of vehicle becoming an integral part of a much bigger ecosystem involving automated driving, intelligent transportation and smart city, more and more electrical/electronic (E/E) systems are integrated in vehicles. Vehicle E/E architecture being the fundamental organization of E/E components, the relationship among the components and with the environment, as well as the principles guiding the design and evolution, has essential influences on vehicle E/E system functions and performance. This paper gives the definition of vehicle E/E architecture and provides different views. The guidelines, contents and process of E/E architecture design are discussed. The evolution of E/E architecture, influence of the latest technical trends including electrification, automated driving, and connectivity functions on E/E architecture, and how vehicle E/E architecture adapts to the technical trends are studied.

The automotive industry is currently undergoing a significant transformation characterized by technological and commercial trends involving autonomous driving, connectivity, electrification, and shared service. Vehicles are becoming an integral part of a much broader ecosystem. In light of various new developments, the Software-Defined Vehicle (SDV) concept is gaining substantial attention and momentum. SDV emphasizes the central role of software in realizing and enhancing vehicle functions, enriching features, improving performance, adapting to surrounding environment and external conditions, customizing user experience, addressing changing customer needs, and enabling vehicles to dynamically evolve over their entire life cycle. The advancements in vehicle Electrical/Electronic (E/E) architecture and various key technologies serve as the technical foundation for the emergence of SDV.