Exida, an independent and internationally acclaimed specialist in functional safety, has recently recertified Vector Informatik GmbH's MICROSAR Classic Safe basic software for the highest level of automotive safety integrity, ASIL D, as reported in a press release on July 25.
In addition to the regular recertification, the focus was also on proving that the MICROSAR Classic Safe basic software meets the safety requirements for availability in redundant systems. This means that electronic control unit (ECU) developers at automotive manufacturers and their suppliers can now use the basic software for autonomous driving functions.
The assessors from Exida evaluated modules from various domains of the basic software. They determined their freedom from interference regarding memory and the correct implementation of the dedicated safety requirements that ensure the availability of redundant systems. For the first time, the assessors evaluated the new analysis method introduced in the development of MICROSAR, which ensures upper limits for the execution time of the modules. The limitation of the execution time (worst-case execution time [WCET]) ensures the permanent availability of, for example, control commands for steering and braking in autonomous vehicles.
