A Maintenance-Oriented Fault Model for the DECOS Integrated Diagnostic Architecture

Peti, P.; Obermaisser, Roman; Ademaj, A.; Kopetz, Hermann

doi:10.1109/ipdps.2005.41

Cited by 10 publications

(4 citation statements)

References 43 publications

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“…For example, if the source of the anomaly is correctly localized, it may be possible to replace the damaged hardware easily. This makes the modelbased diagnosis [9] possible. Also, if the damage is serious and has the potential to cause serious a accident in the near future, the appliance disables to avoid the risk of an accident.…”

Section: Discussionmentioning

confidence: 99%

An Operating System Architecture for Future Information Appliances

Nakajima

Ishikawa

Kinebuchi

et al. 2008

Software Technologies for Embedded and Ubiquitous Systems

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Abstract.A software platform for developing future information appliances requires to satisfy various diverse requirements. The operating system architecture presented in this paper enhances the flexibility and dependability through virtualization techniques. The architecture allows a system to use multiple operating systems simultaneously, and to use multi-core processors in a flexible way. Also, dependability mechanisms in our architecture will avoid crashing or hanging a system as much as possible in order to improve the user experience when defects in the software are exposed. We present a brief overview of each component in the operating system architecture and some sample scenarios that illustrate the effectiveness of the architecture.

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Section: Discussionmentioning

confidence: 99%

An Operating System Architecture for Future Information Appliances

Nakajima

Ishikawa

Kinebuchi

et al. 2008

Software Technologies for Embedded and Ubiquitous Systems

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show abstract

“…To have an accurate and easier detection method in vehicle symptoms, many studies [1,4,6,12,13,14,16,20,22] have been introduced in vehicle diagnostic system concepts and networks. However, we still need to find better ways to diagnose vehicle failure modes.…”

Section: Analysis Of Current Vehicle System Modes For Detecting Vehicmentioning

confidence: 99%

Creating a smart application system to provide a beneficial maintenance service for elderly drivers

2017

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Abstract. As overall population ages, elderly drivers have become a larger percentage of the driving population. With this trend, a lot of vehicle systems have been improved for elderly's safety and convenience using different advanced technologies. However, elderly drivers have often paid more money than other drivers in a car-repair shop due to their lack of knowledge about vehicle systems with modern technologies. Given this fact, developing a tool to diminish this disadvantage and to help elderly drivers maintain their cars with confidence and with minimal cost is necessary. Therefore, this research work mainly focuses on suggesting a system concept on user-interface application, which is connected to a smart phone or a tablet to provide beneficial services anywhere. For the research outcome, diverse research activitiessurveys, interviews with small focus groups, observations of the focus groups, and discussions -has been conducted to understand the elderly driver's difficulties and behaviours regarding vehicle maintenance, to investigate what specific problems make them uncomfortable in repair shops, and to demonstrate how new system-concepts could be developed for the elderly. Furthermore, we conclude that adequate system-concepts for the elderly would offer elderly drivers convenient vehicle repair and maintenance and provide them a confident driving experience.

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“…Table I shows the values of the parameters we have used in all experiments. All these values, but the SSR, are extracted from the automotive domain, the main target domain of FlexRay [16], [3]. Because we were not able to find field data on the rate of SOA faults, we decided to model them as a percentage of symmetric communication faults, which are much more common.…”

Section: Reliability Evaluationmentioning

confidence: 99%

Reliability Evaluation of Broadcast Protocols for FlexRay

Souto

Portugal

Vasques

2016

IEEE Trans. Veh. Technol.

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X-by-wire applications have extremely demanding reliability requirements that are increasingly being addressed through the adoption of distributed and fault-tolerant architectures. The development of these applications is facilitated by the availability of high level services such as agreement or reliable broadcast. Some dependable communication buses, e.g. TTP-C, already provide these services, whereas FlexRay does not.In this paper we present an approach to evaluate the reliability of a family of reliable broadcast protocols implemented both on top of FlexRay and on top of ordinary TDMA. In particular, we evaluate the impact of the acknowledgment policy on the reliability of these protocols. We express the reliability as the probability of violation of the agreement and validity properties of the protocol during a mission. For that, we develop an analytical model based on Discrete Time Markov Chains (DTMC) that considers a comprehensive set of faults (permanent, transient, omissive and asymmetric) affecting both nodes and channels, and their effects on the protocol execution. The structure of the model is quite flexible and easily adaptable to other TDMAbased protocols. In order to assess the sensitivity of the protocol to both internal and external factors, we carried out a large number of experiments considering several network configurations and fault rates. The results show that for FlexRay, the negative acknowledgment policy provides the same reliability as the positive acknowledgment policy. However, for TDMA-based protocols that lack FlexRay's ability to distinguish silence from the loss of a message, the negative acknowledgment policy leads to a lower reliability and its fitness for safety critical applications depends on the system configuration and environment conditions.

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A Maintenance-Oriented Fault Model for the DECOS Integrated Diagnostic Architecture

Cited by 10 publications

References 43 publications

An Operating System Architecture for Future Information Appliances

An Operating System Architecture for Future Information Appliances

Creating a smart application system to provide a beneficial maintenance service for elderly drivers

Reliability Evaluation of Broadcast Protocols for FlexRay

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