The customer’s challenge

Heavac wanted to improve its efficiency in software development and switch to a modular architecture. This would enable them to build a function roadmap for the upcoming years, including a state-of-the-art software development process adapted to their needs. Heavac needed extra software support to realise this aim.

Sioux’s contribution

Sioux created a modular architecture for Heavac’s controllers, including deploying a state-of-the-art software development process, all tailor-made according to Heavac’s needs.


Heavac’s new modular architecture and new development processes enable their software engineers to work on a multi-site and multi-team basis while maintaining a high standard of quality with the highest level of efficiency.


C, Ceedling Software architecture, Agile, Jira, Jenkins, Sphinx, Doxygen configuration management, TICS, Code analysis and test strategy.


Heavac is an innovative trendsetter in the field of climate control systems. Heavac's total-concept systems are built to provide the ultimate climate control for the Bus & Coach markets, providing comfort for passengers and operators during transit.