由于汽车本身的复杂性,构成汽车整车网络系统的各个部分需要传输的数据流量也就不同,存在很大差异,对数据传输速率的要求也就不同。为了以最小代价满足汽车内部各个系统对数据传输的个性化要求。除了在汽车上采用CAN总线、光学总线之外,还引入了子总线。本文主要介绍BSD子总线的应用。 Due to the complexity of the car itself, the data traffic that needs to be transmitted in various parts of the network system of the vehicle complete vehicle also varies greatly, and the requirements on the data transmission rate are also different. In order to meet the individual requirements of the various systems within the car for data transmission with minimum cost. In addition to using the CAN bus in the car, optical bus, but also the introduction of a sub-bus. This article mainly introduces the application of BSD sub-bus.