• Title/Summary/Keyword: Vehicle Ethernet

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Analysis of Transmission Delay and Fault Recovery Performance with EtherCAT for In-Vehicle Network (차량내 통신을 위한 EtherCAT 네트워크의 전송지연 및 고장복구 특성 분석)

  • Kim, Dong-Gil;Jo, Youngyun;Lee, Dongik
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.37C no.11
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    • pp.1036-1044
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    • 2012
  • Thanks to progressive development of IT technology, the number of intelligent devices communicating each other through an In-Vehicle Network(IVN) has been steadily increasing. It is expected that the required network bandwidth and network nodes for vehicle control in 2015 will be increased by two times and one and half times as compared to in 2010, respectively. As a result, many researchers in automotive industry has showed a significant interest on industrial Ethernets, such as EtherCAT and TTEthernet. This paper addresses an analysis on transmission delay and fault recovery performance with an EtherCAT network which is being considered as an IVN. A mathematical model based on the analysis is verified through a set of experiments using an experimental network setup.

Trends in Automotive Ethernet Security Technology (오토모티브 이더넷 보안 기술)

  • Chung, B.H.;Kim, D.W.;Jeon, B.S.;Ju, H.I.;Na, J.C.
    • Electronics and Telecommunications Trends
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    • v.33 no.5
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    • pp.76-85
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    • 2018
  • In recent years, automobiles have evolved from simple transportation to convergence devices, and have combined the Internet of things, high-speed communications, and artificial intelligence technologies to provide people with social and cultural benefits. To provide services such as a smart traffic analysis, autonomous driving, and unmanned driving, automobiles applying these technologies are required to perform various types of sensing and image analyses for vehicle recognition and distance measurements. addition, there has been a rapid increase in the need to introduce an automotive Ethernet, that can provide a wide bandwidth to support. such technologies. In this article, we survey the latest trends in automotive Ethernet based automobiles and their security threats, and analyze the status and prospects of security technologies applied to cope with them.

Development of a Multimedia Streaming System using MEP Based on MOST150 for Premium Express Buses (MOST150기반 MEP를 이용한 프리미엄 고속버스용 멀티미디어 스트리밍 시스템 개발)

  • Lee, Jae-kyu;Lee, Sang-yub;Cho, Hyun-joong
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.42 no.5
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    • pp.1049-1057
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    • 2017
  • In-vehicle multimedia systems are one of the most important factors in the automotive industry. Especially, multimedia systems are more important in advanced commercial vehicles such as premium express buses. In this paper, we proposed a multimedia streaming system architecture using MEP(MOST Ethernet Packets) for premium express buses based on MOST150. We have designed and implemented the prototype of proposed multimedia streaming system. We have designed a board based on i.MX6 to operate a proposed multimedia streaming system. The software has designed a multimedia system for premium express buses based on Android which is an open source platform. MOST(Media Oriented Systems Transport) is a high-speed multimedia network technology for in-vehicle multimedia system. The MOST network is able to manage up to 64 devices and ring topology is used basically. In addition, the MOST Network meets EMI(Electro-Magnetic Interference)/ EMC(Electro-Magnetic Compatibility) requirements because it uses plastic optical fibers(POF).

A Study of Vehicle Diagnostic Data Processing using Diagnostic Communications (진단 통신을 활용한 차량 진단데이터 처리 연구)

  • Chang, Moon-soo
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2021.05a
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    • pp.267-270
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    • 2021
  • In order to diagnose a vehicle, it is achieved by collecting diagnostic data within the ECU or between ECUs and managing the diagnostic data by utilizing various communication methods through an electronic device composed of an ECU(Electronic Control Unit), which is an automotive electronic device. As communication methods, LIN, CAN, FlexRay are mainly used. Recently, wired/wireless communication is being used based on Ethernet. In order to perform vehicle diagnosis, it is necessary to know the diagnosis code generated by the ECU and to collect diagnosis data using diagnosis communication. In addition, diagnostic data can be managed from the ECU only when the application software required for vehicle diagnosis is configured. If many automobile manufacturers are manufacturing ECUs based on the AUTOSAR standard, which is an automotive electronic standard, the software structure is also configured to be applied according to the standard. In this paper, we understand the vehicle diagnosis communication method of the AUTUSAR standard, study the configuration and processing method of diagnosis data, and study the contents of software components, diagnosis communication, and diagnosis event processing.

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Study QoS algorithms For ethernet traffic handling performance On MOST 150 Gateway (MOST150 Gateway의 Ethernet 트래픽 처리 성능 향상을 위한 QoS 알고리즘에 관한 연구)

  • Kim, Chang-young;Jang, Jong-wook;Yu, Yun-sik
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2009.10a
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    • pp.780-783
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    • 2009
  • The application of MOST150 technology has been required to satisfy the demand for the automotive infotainment system and the higher bandwidth requirements caused by the increase of the multimedia processing capacity. The Ethernet technology applied gateway was implemented for an efficient transmission of multimedia, a vehicle diagnosis, an external communication, a data processing between the MOST150 and the CAN communication method applied to many existing vehicles. The new algorithm and application were suggested in order to efficiently perform the data processing between other types of communication systems. The existing MOST150 frame is mainly composed of the Control Channel, the Legacy Packet Channel(async) and the Synchronous /Isochronous Channels and performs the data processing through these sequential channels. With the sense of this process, this study suggested the new algorithm that the Mapping method of the IETF's QoS Management was applied to the MOST150 technology for the efficient QoS.

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A Study on Network System Design for the Support of Multi-Passengers' Multimedia Service Based on HMI (Human Machine Interface) (다인승 차량용 멀티미디어 서비스 지원을 위한 HMI기반 네트워크 시스템 설계에 관한 연구)

  • Lee, Sang-yub;Lee, Jae-kyu;Cho, Hyun-joong
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.42 no.4
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    • pp.899-903
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    • 2017
  • In this paper, it is shown the in-vehicle network architecture and implementation for multimedia service which supports Human machine interface of multi-passengers. For multi-passengers' vehicle, it has to be considered the factor of network traffic, simultaneously data transferring to multi users and accessibility to use variety of media contents for passengers compared to conventional in-vehicle network architecture system Therefore, it is proposed the change of network architecture compared with general MOST network, implementation of designed software module which can be interoperable between ethernet and MOST network and accessible interface that passenger can be plugged into MOST network platform using their device based on ethernet network system.

A Simplified Dvnamic Model for a Tilting Train Simulator (틸팅 차량 모의장치개발을 위한 단순화된 철도차량 모델링)

  • Kim, Jung-Seok;Song, Young-Soo;Han, Seong-Ho
    • Proceedings of the KSME Conference
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    • 2004.04a
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    • pp.751-755
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    • 2004
  • This paper presents a simplified dynamics of railway vehicle for a tilting train simulator. The tilting train simulator has 6 electric-driven actuators and a visualization system with 1600mm-diameter dome screen. The each system shares the data by ethernet. In order to analyze the dynamics of railway vehicle and transfer the results of the analysis to the other system of the tilting train simulator in realtime base, We assumed the tilting train as a simplified rigid body model with primary and secondary suspensions. The simplified vehicle model has a 17-DOF. Through the running analysis on the tight curve with various radius, we verified the simplified vehicle model.

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Intrusion Detection System Based on Sequential Model in SOME/IP (SOME/IP 에서의 시퀀셜 모델 기반 침입탐지 시스템)

  • Kang, Yeonjae;Pi, Daekwon;Kim, Haerin;Lee, Sangho;Kim, Huy Kang
    • Journal of the Korea Institute of Information Security & Cryptology
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    • v.32 no.6
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    • pp.1171-1181
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    • 2022
  • Front Collision-Avoidance Assist (FCA) or Smart Cruise Control (SCC) is installed in a modern vehicle, and the amount of data exchange between ECUs increases rapidly. Therefore, Automotive Ethernet, especially SOME/IP, which supports wide bandwidth and two-way communication, is widely adopted to overcome the bandwidth limitation of traditional CAN communication. SOME/IP is a standard protocol compatible with various automobile operating systems, and improves connectivity between components in the vehicle. However, no encryption or authentication process is defined in the SOME/IP protocol itself. Therefore, there is a need for a security study on the SOME/IP protocol. This paper proposes a deep learning-based intrusion detection system in SOME/IP and performs six attacks to confirm the performance of the intrusion detection system.

Research of Vehicles Longitudinal Adaptive Control using V2I Situated Cognition based on LiDAR for Accident Prone Areas (LiDAR 기반 차량-인프라 연계 상황인지를 통한 사고다발지역에서의 차량 종방향 능동제어 시스템 연구)

  • Kim, Jae-Hwan;Lee, Je-Wook;Yoon, Bok-Joong;Park, Jae-Ung;Kim, Jung-Ha
    • Journal of Institute of Control, Robotics and Systems
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    • v.18 no.5
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    • pp.453-464
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    • 2012
  • This is a research of an adaptive longitudinal control system for situated cognition in wide range, traffic accidents reduction and safety driving environment by integrated system which graft a road infrastructure's information based on IT onto the intelligent vehicle combined automobile and IT technology. The road infrastructure installed by laser scanner in intersection, speed limited area and sharp curve area where is many risk of traffic accident. The road infra conducts objects recognition, segmentation, and tracking for determining dangerous situation and communicates real-time information by Ethernet with vehicle. Also, the data which transmitted from infrastructure supports safety driving by integrated with laser scanner's data on vehicle bumper.

Analysis of Network Topology for Distributed Control System in Railroad Trains (철도차량용 분산형 제어시스템을 위한 네트워크 토폴로지 분석)

  • Hwang, Hwanwoong;Kim, Jungtai;Lee, Kang-Won;Yun, Ji-Hoon
    • Journal of the Institute of Electronics and Information Engineers
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    • v.52 no.10
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    • pp.21-29
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    • 2015
  • For higher reliability against component failures in railroad trains with many electronic sensors and actuators, a distributed control system with which all electronic components are connected via a network is being considered. This paper compares and analyzes various topologies of Ethernet network for a railroad train in the aspects of (1) failure recovery, (2) the number of ports per device, (3) the number of cable connections between vehicles, and (4) performance. Especially, the unique characteristic of a train system that the number of vehicles changes is considered through analysis. Various combinations of in- and inter-vehicle topologies are considered. In addition, we introduce a hybrid of star and daisy-chain topology for inter-vehicle connection when the maximum number of inter-vehicle connections is limited to reduce possible failures of inter-vehicle connections. Simulation results show performance comparison between different topology combinations; the hybrid topology is shown to enhance delay performance even with a highly limited number of inter-vehicle connections.