Improved Software Updating for Automotive ECUs: Code Compression

Vehicles these days have roughly one hundred Electronic Control Units (ECUs). Therefore, it is difficult to fix bugs that are caused by timing. The near future may hold autonomous vehicles, which will be controlled by extensive software. Therefore, software updating will be necessary. Many vehicles...

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Bibliographic Details
Main Authors: Onuma, Yutaka, Nozawa, Masanao, Terashima, Yoshiaki, Kiyohara, Ryozo
Format: Conference Proceeding
Language:English
Subjects:
Applications programs
Automobiles
Automotive engineering
bsdiff
Computer bugs
Computer programs
Computer simulation
differential compression
ECU
Flash memories
Mathematical models
Registers
Software
Software algorithms
Software updatingt
Upgrading
Vehicles
Online Access:Request full text
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Summary:Vehicles these days have roughly one hundred Electronic Control Units (ECUs). Therefore, it is difficult to fix bugs that are caused by timing. The near future may hold autonomous vehicles, which will be controlled by extensive software. Therefore, software updating will be necessary. Many vehicles are connected to a network, thus, updating should take as little time as possible. In this paper, we show how to reduce the data size for software updating. Our method is based on bsdiff, which is a well-known code-difference technique. We propose an improved bsdiff method and evaluate it by simulation. We found that it slightly reduced some of the data sizes.
ISSN:0730-3157
DOI:10.1109/COMPSAC.2016.134