Method Based on OSEK/VDX Platform Using Model-based and Autocode Technology for Diesel ECU Software Development

Model-based and autocode technology has become mature and brings many advantages in automotive software development. In order to take advantage of these changes, organization must adjust development process. This paper proposes a "V+v" method, in which the process of code design and implementation are divided into two development processes (controller algorithms and software platform) in contrast to traditional "V" development process. Control engineers develop algorithm based on model, generate codes with autocoding tools and carry out tests with the same model via different kinds of simulations. Platform engineers design software development platform based on OSEK-compliant RTOS according to results of system functional analysis. During software integration & test phase, algorithm codes are "installed" into the platform and then they are linked and built together to create whole ECU software. The method has been used for diesel ECU software development in China FAW Group Corporation and the results demonstrate benefits.