Functional Chain/ Signal Network Analysis
Status Quo and Current Issues
Due to an ever increasing complexity of modern control systems and vehicle functions in combination with a growing diversity and number of the vehicle-variants, an increasing amount of complexity management is required to avoid the occurence of error conditions on-board of a vehicle.
During the software development process it becomes more and more difficult to understand and control the signal relationships in a vehicle’s software composite, because of the high complexity of the vehicle system itself and of each of the integrated components. Modifications in one place can create unexpected issues in a totally different place, as the influence on the software composite was unknown.
The Jember Toolchain
With the Jember Toolchain we offer support for exactly this: for the early detection of error conditions and misfunctions in the vehicle during development and production, as well as after the provisioning of the vehicle and during the firmware updates.
The Jember Toolchain enables to understand dependencies between various software signals in the vehicle. On the basis of the controller software, a software analysis is performed to visualize the entire signal network of the controller. After addition of the vehicle communication busses, the entire signal network of the vehicle can be analysed.