This content is not included in your SAE MOBILUS subscription, or you are not logged in.

Formal Design Process for FlexRay-Based Control Systems with Network Parameter Optimization

Journal Article
2008-01-0277
ISSN: 1946-4614, e-ISSN: 1946-4622
Published April 14, 2008 by SAE International in United States
Formal Design Process for FlexRay-Based Control Systems with Network Parameter Optimization
Sector:
Citation: Park, I., Youn, J., Ma, J., and Sunwoo, M., "Formal Design Process for FlexRay-Based Control Systems with Network Parameter Optimization," SAE Int. J. Passeng. Cars - Electron. Electr. Syst. 1(1):102-110, 2009, https://doi.org/10.4271/2008-01-0277.
Language: English

Abstract:

FlexRay is a deterministic and fault-tolerant in-vehicle network(IVN) protocol. It is expected to become a practical standard for automotive communication systems. According to the FlexRay protocol specifications, there are about 60 configurable parameters which should be determined in the design phases. The parameters increase the complexities of FlexRay-based control system development. In this study, we are suggesting a formal design process for FlexRay-based control systems, which is focused on network parameter optimization. We introduce design phases from functional system models to implementations. These phases present formal ways for task allocation, node assignment, network configuration, and implementations. In the network configuration phase, two FlexRay core parameters are selected to optimize network design. Optimal methods of the core parameters provide concise guide lines for optimal communication cycle length and optimal static slot length. For the purpose of feasibility test, we have applied the proposed design process to an electronic stability control (ESC) system.