符合ASIL D等級之車用網路設計

Abstract

汽車電子化的速度日漸劇增，針對車子的安全性和舒適性已於汽車中整合了多種感測器與電子控制單元用以實現更高速以及即時性的致動，由於汽車中感測器與電子控制單元的增加，其之間的資料種類及資料量也越來越多，然而隨著系統的複雜度增加，使得系統的表現更難以被預測及保證，因此更需要一高速且安全的車用通訊網路將其連接起來。FlexRay網路協定符合車內的高速需求，但在車用電子安全性中，網路傳輸不行出任何差錯，以免造成嚴重危害。本論文在學術研究的貢獻如下： (1) 車用網路系統中設計車用電子安全性系統符合ASIL D等級。 (2) 開發符合本論文系統的車用網路通訊節點。 (3) 實現線傳操控系統，以FlexRay網路或CAN網路傳送命令操控四輪遙控車。 (4) 開發四輪遙控車系統控制操作環境平臺，提供使用者透過實際的圖形化開發環境介面來自行規劃與設計。

The automotive electronic growing surge, for traffic safety and comfort, integration of a variety of sensors and electronic control units in the automotive, achieve a more high-speed and real-time actuation, with sensor and electronic control units increase, the data type and amount is growing up, too. With the growing of complexity of these systems, the timing performance became harder to be guaranteed and predicted. And therefore need a high-speed and secure network to connect. FlexRay network protocol satisfies high-speed requirement, but it is not allow to make any mistake during network communication to avoid danger in the safety of automotive electronics. This paper studies how to improve and enhance the safety and reliability for the network system and power system in the safety of automotive electronics. Design the fourth communication nodes on automotive network systems to realize the proposed design through FlexRay network protocol in X-by-wire system established in a four-wheel remote control car.