Sunkil Yun

Automated Driving System Architecture to Ensure Safe Delegation of Driving Authority

In this paper, the architecture of an automated driving system (ADS) is proposed to ensure safe delegation of driving authority between the ADS and a driver. Limitations of the ADS functions may activate delegation of driving authority to a driver. However, it leads to severe consequences in emergency situations where a driver may be drowsy or distracted. To address these issues, first, the concept model for the ADS in the situation for delegation of driving authority is described taking the drivers behaviour and state into account. Second, the behaviour / state of a driver and functional flow / state of ADS and the interactions between them are modelled to understand the context where the ADS requests to delegate the driving authority to a driver. Finally, the proposed architecture of the ADS is verified under the simulations based on the emergency braking scenarios. In the verification process using simulation, we have derived the necessary condition for safe delegation of driving authority is that the ADS should assist s driver even after delegating driving authority to a driver who has not enough capability to regain control of the driving task.

Driver's Functions Definition in System of Systems Surrounding Automated Vehicles

Graduate School of System Design and Management, Keio Universit yAbstract : This paper addresses the definition of the driver ’s functions for an automated vehicle of level 3, as defined by the Society of Automotive Engineers. By combining th e constituent systems surrounding the automated vehicles in specific use cases, their interactions co uld be refined in a stepwise approach. This approach enables traceability of interactions betw een drivers, automated driving systems, and other constituent systems.Key Words : System of Systems; Systems Engineering; Automated Vehicle; S ystem Modeling Language* 교신저자 : Satoko Kinoshita, s.kinoshita@keio.jp* This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License(http://creativecommons.org/licenses/by-nc/3.0) which pe rmits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.