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This paper provides some background and the roadmap of the AUTO-CAAS project, which is a 3-year project financed by the Swedish Knowledge Foundation and is ongoing as a joint project among three academic and industrial partners. The aim of the project is to exploit the formal models of the AUTOSAR standard, developed by the industrial partner of the project Quviq AB, in order to predict possible future...
This paper deals with the design of a safety-critical embedded system for railroad vehicles usually referred to as "dead-man's vigilance device" (DMVD). A DMVD monitors the activity of the operator driving a train to detect his/her possible incapacitation while the vehicle is traveling. The system relies on a redundant and diverse FPGA-based architecture (without using micro-controllers,...
This paper analyzes the technical characteristics of the integrated electronic system, and pointed out that the existing problems in fault diagnosis of new armoured vehicles under the condition of informatization, and describes a method of the portable armored vehicle bus testing system design and realization. Based on database technology, software multi-threading technology, as well as DMA technology,...
We present a vision for the evolution of automotive diagnostics as car electronics are increasingly implemented as distributed systems. We first analyze the state of the art in the automotive development process, and we identify how distributed functionality challenges this process and leads to higher development and field maintenance costs. To address these challenges, we propose a modified development...
The status of vehicle fault diagnosis protocols applied in the market is analyzed, and also are the problems of the hand-held diagnosis instruments. Through the way of combination of PC-style diagnosis software and Vehicle Communication Interface (VCI), the popular type of vehicle fault diagnosis system based on both K-line and Controller Area Network (CAN) is developed. The diagnosis system is divided...
This paper introduces the overall design of vehicle bus data acquisition and fault diagnosis system on the basis of OBD, focusing on its lower computer system and the upper computer system design principles. This system is based on the widely used CAN bus technology, to extract the vehicle's status or fault information. The CAN bus adopts the SAE J1939 protocol standards, maximize the superiority...
The amount of automotive software functions is continuously growing. With their interactions and dependencies increasing, the diagnosis' task of differencing between symptoms indicating a fault, the fault cause itself and uncorrelated data gets enormously difficult and complex. For instance, up to 40% of automotive software functions are contributable to diagnostic functions, resulting in approximately...
The Train Communication Network (TCN) is a high-performance local area network for information transfer of modern train control, state detection, fault diagnosis and passenger service and so on. The Multifunction Vehicle Bus (MVB) is a critical part of the TCN and the design of the MVB's protocol analysis tool plays a very important function. Supported by the friendly Windows graphics user interface,...
This paper presents a remote vehicle diagnosis system that not only be used in vehicle diagnosis and maintenance, but also performs well in the vehicle development and enterprise management. As diversities of physical layer and data link layer protocols are widely used in the automotive electrical systems, a general protocol electrical level transfer circuit is designed and solidified software for...
Over the past decades, the design and development of mission based Autonomous Underwater Vehicle (AUV) continues to challenge researchers. Although AUV technology has matured and commercial systems have appeared in the market, a generic yet robust AUV command and control (C2) system still remains a key research area. This paper presents a command and control system architecture for modular AUVs. We...
The Orion Crew Exploration Vehicle (CEV) is being designed to include capabilities that allow significantly more automation than either the Space Shuttle or the International Space Station (ISS). In particular, the vehicle flight software has requirements to accommodate increasingly automated missions throughout all phases of flight. This paper presents the Guidance, Navigation & Control (GN&C)...
A hydrogen-powered fuel cell vehicle is developed, in which a distributed control and communication system based on CAN (Controller Area Network) is built. For vehicle diagnostic purpose, a new on-board fault diagnosis strategy is presented. There are two efficient automotive diagnostic systems based on CAN designed and implemented in this paper: (1)CANoe is a powerful CAN development tool. A fault...
This paper presents principles and results of dynamic testing of an SRAM-based FPGA using time- resolved fault injection with a pulsed laser. The synchronization setup and experimental procedure are detailed. Fault injection results obtained with a DES crypto-core application implemented on a Xilinx Virtex II are discussed.
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