As the automatic driving level of an automobile increases, it is necessary to travel in a system in which the driver does not intervene, and high reliability of the system becomes necessary. One method for high reliability is redundancy of a power supply. In order to construct a redundant power supply network, except for a main power supply network, the redundant power supply network is also needed, so that the number of electric lines of the network is increased. Besides, in order to cope with large current, a power supply line uses a cable with a thick core wire, so that the weight of the cable becomes heavy, and the fuel efficiency of the vehicle becomes poor. In an electronic control device (11-B) of the present invention, power fed from a power supply storage unit (12-A) via another electronic control device (11-A) is received so as to redundancy redundant power supply on a power supply overlap data line (16). That is to say, the electronic control device (11-B) receives power fed or transmitted from both the directly connected power storage unit (12-B) and the indirectly connected power storage unit (12-A).
随着汽车的自动驾驶级别的提高,要求在驾驶员不介入的系统下的行驶,系统的高可靠化成为必需。用于高可靠化的一种方法为电源的冗余化。要构建冗余的电源网络,除了主电源网络以外还需要冗余电源网络,使得网络的电线条数增加。此外,为了应对大电流,电源线路会使用芯线粗的电缆,所以也使得电缆的重量变重,导致车辆的燃油效率变差。在本发明的电子控制装置(11‑B)中,以冗余在电源重叠数据线路(16)上的冗余电源的形式接受从电源储存部(12‑A)经由另一电子控制装置(11‑A)馈送的电力。也就是说,电子控制装置(11‑B)接受从直接连接的电源储存部(12‑B)和间接连接的电源储存部(12‑A)两者馈送或输送的电力。
In-vehicle network system and electronic control device
车载网络系统及电子控制装置
02.12.2022
Patent
Elektronische Ressource
Chinesisch
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