Efficient controller area network data compression for automobile apphcations

作     者：Yu-jing WU Jin-Gyun CHUNG 

作者机构：Division of Electronics & Information Engineering Chonbuk National University Jeonju 561-756 Korea 

出 版 物：《Frontiers of Information Technology & Electronic Engineering》 (信息与电子工程前沿（英文版）)

年 卷 期：2015年第16卷第1期

页      面：70-78页

核心收录：

学科分类：0810[工学-信息与通信工程] 08[工学] 080401[工学-精密仪器及机械] 0804[工学-仪器科学与技术] 080402[工学-测试计量技术及仪器] 0835[工学-软件工程] 081002[工学-信号与信息处理] 

基　　金：Project supported by the Information Technology R&D Program of MOTIE/KEIT(No.10044092) Research Funds of Chonbuk National University in 2013 

主　　题：Controller area network (CAN) Electronic control units (ECUs) Data compression Signal rearrangement 

摘      要：Controller area networks （CANs） have been designed for multiplexing communication between electronic control units （ECUs） in vehicles and many high-level industrial control applications. When a CAN bus is overloaded by a large number of ECUs connected to it, both the waiting time and the error probability of the data transmission are increased. Thus, it is desirable to reduce the CAN frame length, since the duration of data transmission is proportional to the frame length. In this paper, we present a CAN message compression method to reduce the CAN frame length. Experimental results indicate that CAN transmission data can be compressed by up to 81.06% with the proposed method. By using an embedded test board, we show that 64-bit engine management system （EMS） CAN data compression can be performed within 0.16 ms; consequently, the proposed algorithm can be successfully used in automobile applications.