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Technical Paper

Architecture Design and Implementation Issues for Model-Based Automotive Embedded Software Development

The key to effectively applying model-based methodology to the development of real-time embedded systems hinges on creating an executable model composed of graphical representations that correctly and accurately reflect the requirements, functionality, and implementation constraints for the system under development. To achieve such goals, developers face similar technical and engineering challenges to those experienced with a traditional development process. In this paper, we present an architecture-oriented model design methodology aimed at combating these challenges. The methodology involves decomposing the system functionality into a set of smaller and more manageable pieces, assembling these pieces into an integrated model, placing the model in a controllable and maintainable test environment, and resolving any model implementation issues. The methodology described in this paper has been successfully applied to production projects and has proven to be effective.
Technical Paper

A Systems Engineering Approach to Verification of Distributed Body Control Applications Development

An effective methodology for design verification and product validation is always a key to high quality products. As many body control applications are currently implemented across multiple ECUs distributed on one or more vehicle networks, verification and validation of vehicle-level user functions will require availability of both the vehicle networks and multiple ECUs involved in the implementation of the user functions. While the ECUs are usually developed by different suppliers and vehicle networks' infrastructure and communication protocols are normally maintained and developed by the OEM, each supplier will be faced with a similar challenge - the ECU being developed cannot be fully verified and tested until all other ECUs and their communication networks are available in the final development stage.