Safety Island in a Mixed Safety-Critical Heterogeneous Architecture

Prevalence of automated driving, electrification, and connected vehicle applications result in increased complexity of electrical and electronic (E/E) vehicle architectures and demand disparate vehicle safety requirements. To manage design complexity, meet design constraints of heterogeneous automotive E/E architectures, achieve international compliance, and deliver a rich and flexible solution, a holistic approach towards functional safety in a mixed safety-critical environment is required. This presentation will include:
• A discussion over consolidated automotive zonal architectures driving trends towards heterogeneous multi-processing in embedded system-on-chips (SoCs)
• An examination of multicore issues (inter-processor communication, inter-CPU safety and security, boot-order, and system integrity), multicore management (unsupervised, supervised, hybrid), and design challenges for symmetric- and asymmetric multi-processing (SMP/AMP)
• Safety design considerations including efficient load distribution, temporal and spatial isolation, effective core/memory utilization, reduced communication bandwidth, schedulability, and end-to-end communication protection
• Functional safety conceptualization in a mixed-time-domain and mixed safety-critical system along with methodologies to achieve AMP through hypervisors and multicore frameworks over heterogeneous automotive embedded architectures

Practical design examples will also be included with a system-level framework for communication in mixed safety-critical heterogeneous AUTOSAR ECU systems.