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Models make sense

Testing and verifying automotive embedded software using Model Based Design

By 2010, electronics is expected to comprise 40% of automotive material costs. Embedded software and electronics are replacing or simplifying mechanical and hydraulic systems in core functions and implementing advanced features, such as active safety systems.
However, rapid growth in embedded software and electronics complexity, coupled with the difficulty of testing and verifying these systems, has been associated with a rise in quality issues and recalls.
Automotive engineers typically use models when developing functions that will run on an electronic control unit (ECU). These models are used to: provide executable specifications; analyse the system’s dynamic behaviour; simulate system components and environmental conditions; and to design algorithms.
Automatic code generation from these models has become an accepted way to implement production ECU software. In the future, Model Based Design is expected to become the primary approach for implementing embedded control software in many automotive companies.

Jim Tung

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