Methods and Tools for Calculating the Flexibility of Automotive HW/SW Architectures 2012-01-0005
To cope with the increasing number of advanced features (e.g., smart-phone integration and side-blind zone alert.) being deployed in vehicles, automotive manufacturers are designing flexible hardware architectures which can accommodate increasing feature content with as fewer as possible hardware changes so as to keep future costs down. In this paper, we propose a formal and quantitative definition of flexibility, a related methodology and a tool flow aimed at maximizing the flexibility of an automotive hardware architecture with respect to the features that are of greater importance to the designer. We define flexibility as the ability of an architecture to accommodate future changes in features with no changes in hardware (no addition/replacement of processors, buses, or memories). We utilize an optimization framework based on mixed integer linear programming (MILP) which computes the flexibility of the architecture while guaranteeing performance and safety requirements.
Citation: Guo, L., Ghosal, A., Zeng, H., Giusto, P. et al., "Methods and Tools for Calculating the Flexibility of Automotive HW/SW Architectures," SAE Int. J. Passeng. Cars - Electron. Electr. Syst. 5(1):17-26, 2012, https://doi.org/10.4271/2012-01-0005. Download Citation
Liangpeng Guo, Arkadeb Ghosal, Haibo Zeng, Paolo Giusto, Alberto Sangiovanni-Vincentelli
Univ of California-Berkeley, National Instruments, General Motors Company
SAE 2012 World Congress & Exhibition
SAE International Journal of Passenger Cars - Electronic and Electrical Systems-V121-7, SAE International Journal of Passenger Cars - Electronic and Electrical Systems-V121-7EJ