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| Evaluation and analysis of automotive ethernet delay based on surround view system |
| 1. Commercial Vehicle Technology Center of Shanghai Automotive Industry Corporation, Shanghai 200082, China； 2. Shanghai Weihe Information Technology Co., Ltd., Shanghai 201102, China； 3. Automotive Engineering Research Institute， Jiangsu University, Zhenjiang， Jiangsu 212013, China |
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Abstract Based on the theory of AVB protocol, a test bench with 360° surround view of BMW G38 was established with RAD_Galaxy as core.A series of message data were collected by Vehicle Spy, and the message structure and interaction process were analyzed by Wireshark to obtain the key information of received messages. The automotive ethernet delay was evaluated and analyzed by processing and calculating the timestamp. The results show that the theoretical delay value can be analyzed based on the successful capturing and cracking of the message data of the surround view system and the AVB protocol. The time delay analysis method for the captured messages on the test bench is applicable to the time delay analysis of all ethernet messages.
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Received: 25 September 2019
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2020, Vol. 41 
