Efficient Multi-core AUTOSAR-Platform Based on an Input/Output Gateway Core
Moisés Urbina, Roman Obermaisser · 2017
The AUTOSAR standard provides support for multicore systems since version 4. However, this AUTOSAR multicore version focuses on inter-core communication with a shared memory approach. In contrast, the paradigm of message-based network-on-chips provides multiples advantages for real-time embedded systems such as automotive electronics including better temporal predictability, fault containment and energy efficiency. In this paper we propose an efficient multicore architecture for AUTOSAR based on time-triggered network-on-chips and dedicated input/output cores. Additionally, a health monitoring service is integrated into the AUTOSAR ECU architecture in order to provide recovery actions in case of failures of the automotive application or the hardware of a specific core in the multiprocessor. The results demonstrate how the operating system overhead decreases considerably when using the defined input/output cores that serve as hardware accelerators for the AUTOSAR software. Also, the reliability of the system is improved significantly due to the implemented health monitoring service.