Implications of architecture and implementation choices on timing analysis of automotive CAN networks

IF 3.7 2区计算机科学 Q1 COMPUTER SCIENCE, HARDWARE & ARCHITECTURE

Journal of Systems Architecture Pub Date : 2024-10-26 DOI:10.1016/j.sysarc.2024.103290

Dongwen Yang , Marco Di Natale , Haibo Zeng

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引用次数: 0

Abstract

The Controller Area Network (CAN) protocol is widely adopted in industry such as automotive. It has been analyzed in a number of studies in the real-time systems community to compute the worst case response time of messages, based on an ideal model on the behavior of the message queuing and CAN controller. Recently, more results are being added to study systems that are not constructed according to the ideal model.

In this paper, we further investigate the architecture choices that may affect the timing analysis. Specifically, we provide an assessment on the practical relevance of several analysis results. We also present theory and empirical studies on the relative importance of architecture implementation issues that are quite common in real systems but further deviate from the ideal behavior. We also experimentally evaluate the response time while using TxObjects without preemption. We propose a heuristic for the design of multiple software queues when TxObjects are not preemptable. Finally, we derive an upper bound on the worst case response time when message output at the CAN driver is polling based.

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架构和实施选择对汽车 CAN 网络时序分析的影响

控制器局域网（CAN）协议被汽车等行业广泛采用。实时系统领域的许多研究都对其进行了分析，根据报文队列和 CAN 控制器行为的理想模型，计算出报文的最坏响应时间。在本文中，我们将进一步研究可能影响时序分析的架构选择。具体而言，我们对几项分析结果的实用性进行了评估。我们还介绍了有关架构实现问题相对重要性的理论和实证研究，这些问题在实际系统中非常常见，但却进一步偏离了理想行为。我们还通过实验评估了在不抢占的情况下使用 TxObjects 的响应时间。我们提出了在 TxObjects 不可抢占时设计多个软件队列的启发式方法。最后，我们得出了 CAN 驱动程序基于轮询的报文输出时最坏情况下的响应时间上限。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Systems Architecture 工程技术-计算机：硬件

CiteScore

8.70

自引率

15.60%

发文量

226

审稿时长

46 days

期刊介绍： The Journal of Systems Architecture: Embedded Software Design (JSA) is a journal covering all design and architectural aspects related to embedded systems and software. It ranges from the microarchitecture level via the system software level up to the application-specific architecture level. Aspects such as real-time systems, operating systems, FPGA programming, programming languages, communications (limited to analysis and the software stack), mobile systems, parallel and distributed architectures as well as additional subjects in the computer and system architecture area will fall within the scope of this journal. Technology will not be a main focus, but its use and relevance to particular designs will be. Case studies are welcome but must contribute more than just a design for a particular piece of software. Design automation of such systems including methodologies, techniques and tools for their design as well as novel designs of software components fall within the scope of this journal. Novel applications that use embedded systems are also central in this journal. While hardware is not a part of this journal hardware/software co-design methods that consider interplay between software and hardware components with and emphasis on software are also relevant here.