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2025 Vol.17, Issue 3 Preview Page
Review and Analysis of Driver Control Assistance Systems (DCAS) Regulation
Doyeon Kim1
,
Sohyang Kim1
,
Yeongmin Kim1
,
Kibeom Lee2*
1Master’s Student, Department of Mechanical Engineering, Gachon University
2Associate Professor, Department of Mechanical Engineering, Gachon University
*First Author
30 September 2025. pp. 88-95
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Abstract

Recently, Germany and parts of the United States have seen the commercialization of Level 3 autonomous vehicles, and the technology is starting to pay off. However, Level 3 autonomous driving technology is not without its challenges, as the manufacturer is solely responsible for any accidents that occur while the vehicle is in operation. Driver Control Assistance Systems (DCAS) are emerging as an alternative to mitigate the manufacturer's liability burden during the commercialization of autonomous driving technology and effectively fill the technological gap between Level 2 and 3. While Advanced Driver Assistance Systems (ADAS) include driver assistance functions for driving safety, DCAS is a technology designed to provide drivers with a driving experience that is comparable to autonomous driving, thereby reducing the liability burden on manufacturers while increasing the practical applicability of autonomous driving technologies. This study analyzes the regulations, operating conditions, testing and evaluation processes, technical limitations, and directions for improvement related to DCAS technologies. This study emphasizes the direction in which manufacturers can proceed with technology development after familiarizing themselves with DCAS-related regulations and is expected to contribute to the development and stability of DCAS.

Keywords
Advanced Driver Assistance System (ADAS)
Driver Control Assistance Systems (DCAS)
Human-Machin Interface (HMI)
Driver state monitoring
Warning strategy
Dynamic control
References
1

SAE International, Taxonomy and Definitions for Terms Related to Driving Automation Systems for On-Road Motor Vehicles, SAE Standard J3016, Apr. 2021.

2

National Highway Traffic Safety Administration (NHTSA), New Car Assessment Program Final Decision Notice – Advanced Driver Assistance Systems and Roadmap, Dec. 2024.

3

United Nations Economic Commission for Europe (UNECE), Uniform Provisions Concerning the Approval of Vehicles with Regard to Driver Control Assistance Systems (DCAS), UN Regulation No. 171, 7 Nov. 2024.

4

International Organization for Standardization (ISO), Road Vehicles – Functional Safety, ISO 26262:2018.

5

International Organization for Standardization (ISO), Road Vehicles – Safety of the Intended Functionality (SOTIF), ISO/PAS 21448:2022.

6

J. Kim, “Experimental Study on the Operational Limits of Automatic Emergency Braking (AEB) Systems,” J. Automot. Saf., 2022.

7

T. Ha, “Analysis of Elderly Drivers’ Behavior at Non-Perpendicular Urban Intersections,” J. Automot. Saf., 2022.

8

N. Kim, “A Study on the Types of Information Required in Takeover Situations of Autonomous Vehicles,” J. Digital Contents Society, 2018.

9

M. Jang, et al., “Trends and implications of driver monitoring in autonomous vehicles,” ETRI Electronics and Telecommunications Trends, 2021.

10

B. Kim, “HMI user requirements for takeover in autonomous vehicles,” Korean Society of Automotive Engineers Journal, 2020.

11

J. Myoung, C. Heo, D. Lee, W. Ko, K. Kim, S. Woo, and D. Shin, “Control of cooperative lane following assist system for reducing conflict between driver and automation,” Proc. Korean Soc. Mech. Eng (KSME) Spring Conf. pp. 224-225, 2023.

12

B. Kim, “A Study on Testing Methods for Autonomous Vehicles Regarding Fixed Targets,” J. Automot. Saf., 2022.

10.21203/rs.3.rs-520159/v1
13

J. Son and M. Park, “Driving behavior analysis for safety standard verification of driver monitoring system in partially autonomous vehicles – Part 2,” J. Automot. Saf., 2021.

14

S. Kim, “A Study on the Development of Post-Crash Vehicle Inspection Procedures to Improve Automotive Safety,” Master’s Thesis, Ajou University ITS Department, 2015.

15

B. Kim, “A Study on the Risks and Countermeasures of Autonomous Vehicles,” Korean ITS J., 2018.

Information
  • Publisher :Korean Auto-vehicle Safety Association
  • Publisher(Ko) :한국자동차모빌리티안전학회
  • Journal Title :Journal of Auto-vehicle Safety Association
  • Journal Title(Ko) :자동차안전학회지
  • Volume : 17
  • No :3
  • Pages :88-95
  • Received Date : 2025-08-07
  • Accepted Date : 2025-09-01
  • DOI :https://doi.org/10.22680/kasa2025.17.3.088
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