汽车电器系统结构的全分布式设计

completely distributed automotive electrical system and its design

摘要:

本文通过定义分布指数，分析了汽车电器系统结构演变及发展方向，并提出了一种全分布式结构的汽车电器系统。该系统以骨干网和局域网二级网络为数字信号网络、以电源网络为系统供电并以中央协调器作整车协调控制的体系结构。该系统结构通过骨干网/局域网实现电器互联，并以分布式电力网实现整车弱电系统和强电系统的供电，以标准化电器接口实现了整车不变线束，从而构成了一个智能型、标准化、一致性很强、扩展性良好、可靠性高的整车电器系统。最后开发了实验样车，证明了全分布式控制系统的可行性。

关键词:汽车电器系统构架;全分布式控制;电源网络;中央协调器;不变线束;

Abstract:

The development trend of automotive electrical system is analyzed through the distribution index. A complete distributed automotive electronic system is introduced. The new architecture concept features a set of hierarchy backbone and local digital signal network, power supply network together with a central coordination controller. The electrical/electronic devices are connected through backbone/local networks, and are supplied through the distributed power supply network. The harness in this so called Pan-electronic automotive system is standardized and invariant. The system achieves good configurability, extendibility and reliability. A bus as a demonstration is developed and the system is improved feasible and economy.

Key words:automotive electrical system; completely distributed control system; automotive power network; Central coordination control unit; invariant harness;