About client

Launched in 1919, this Italian company, develops main car components, modules and systems. It has several R&D centers mainly in Italy and in Germany.

The challenge

Development of a new system feature: SOFTWARE UPDATE OTA for a Telematics ECU as well as introduction of new functionalities: automatic system update, maps/applications installation, downloaded packages authentication and integrity check, system rollback to OEM version if instability detected.

What we did

  • We prepared documentation of user stories, use cases for system feature based on customer requirements and draft of software design document.
  • We completed documentation of system architecture.
  • We designed high level protocol for communication between system running OSEK and system based on Linux.
  • We implemented communication between two processors which were part of the Telematics ECU.
  • We implemented software update SWC for Telematic ECU.
  • We automated unit test running on development machine (PC) and on target box.

Effects

  • Telematics ECU can be updated via CAN and Over the air.
  • Software download process from Internet network for software update of telematics ECU is secure and safe.
  • Communication protocol for software update used for synchronization and data exchange can be reused in development of other ECUs.
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