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Technical Paper

Model-Based Automated Validation Techniques for Automotive Embedded Systems

2007-04-16
2007-01-0503
Model-based approaches can improve quality and reduce cycle time by simulating the models to perform early validation of requirements. These approaches can provide automated validation techniques by generating test cases from the model. This paper describes model-based automated test techniques in all phases of the product life cycle to maximize the early validation capabilities of model-based development processes. The paper proposes a model-based test process framework for all modeling phases including system modeling, architectural modeling and auto-generated software. The test automation technique consists of automatic test generation, execution and analysis. A Test Management System, which enables the automatic generation of requirement-based test cases, analysis of the test results and test database management, is developed through this study.
Technical Paper

Software-in-the-Loop Simulation Environment Realization using Matlab/Simulink

2006-04-03
2006-01-1470
This paper presents the Matlab/Simulink-based Software-in-the-Loop Simulation (SILS) tool which is the co-simulator for temporal and functional simulations of control systems. The temporal behavior of a control system is mainly dependent on the implemented software and hardware such as the real-time operating system, target CPU and communication protocol. In this research, the SILS components with temporal attributes are specified as tasks, task executions, real-time schedulers, and real-time networks. Methods for realizing these components in graphical block representations are investigated with Matlab/Simulink, which is the most commonly used tool for designing and simulating control algorithms in control engineering. These components are modeled in graphical blocks of Matlab/Simulink.
Technical Paper

Model Based Embedded System Development for In-Vehicle Network Systems

2006-04-03
2006-01-0862
This paper aims for a seamless development process for automotive body network system development with model-based approach. It also describes a generic software architecture that provides clear-boundaries between the software components and that can also act as a guide for each development phase. The CASE tool Statemate is used for feature behavioral modeling and verification. NodeAllocator builds the ECU models by mapping the behavioral model and physical network architecture. The virtual prototypes and the basic bus communication information are created and validated using software in loop simulation. The validated functional models are refined for implementation models and MicroC is used for application task code, OS design and software integration.
Technical Paper

Design and Development of a Computer-Aided In-Vehicle Data Acquisition System for Driving Pattern Analysis

1999-03-01
1999-01-0954
In order to evaluate vehicle powertrain performances and driver behaviors, a computer aided in-vehicle data acquisition system named MOde Survey System (MOSS) is newly developed in conjunction with a motor manufacturer. MOSS is designed to be used by personnel related to vehicle emissions and energy with the aim of being cost-effective and easy-to-use. Since driving behaviors and patterns influence powertrain performance in terms of fuel economy and emissions, engineers can utilize the system for understanding the driving pattern and traffic situation quantitatively. MOSS mainly consists of an MCU-based hardware and PC-based software. MOSS logs and analyzes various data related to vehicle driving. Compared to currently-existing Test and Measurement Systems, MOSS is designed and developed for a specific goal with several unique features.
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