A Study on Safety Evaluation Method of LKAS in Actual Road

LKAS의 실도로 안전성 평가방법에 관한 연구

  • 윤필환 (계명대학교 기계공학과) ;
  • 이선봉 (계명대학교 기계자동차공학부)
  • Received : 2018.08.31
  • Accepted : 2018.12.11
  • Published : 2018.12.31


Recently, the automobile industry has developed ADAS (Advanced Driver Assistance System) to prevent traffic accidents and reduce driver's driving burden. Among the ADAS, the LKAS (Lane Keeping Assistance System) is a support system for the convenience and safety of the driver, and the main function is to maintain the driving lane of the vehicle. LKAS is a system that uses radar sensor and camera sensor to collect information about the position of the vehicle in the lane and to support keeping the lane through control if necessary. In many countries, LKAS has already been commercialized and the convenience and safety of drivers have been improved. The international LKAS evaluation test procedure is being developed and discussed by standardization committees such as the ISO (International Organization for Standardization) and the Euro NCAP (New Car Assessment Program). In Korean, the LKAS test method is specified in the KNCAP (Korean New Car Assessment Program), but the evaluation method is not defined. Therefore, the LKAS test procedure that meets international standards and is suitable for domestic road environment is necessary. In this paper, development of LKAS test evaluation scenarios that meets international standards and considering domestic road environment, and the formula that can evaluate the result value after control as the relative distance of lane and the front wheel are suggested. And a comparative analysis was conducted to verify the validity of the suggested scenario and formula. The test evaluation was conducted using the vehicle equipped with the LKAS.


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Fig. 1 Road section

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Fig. 2 Straight road section

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Fig. 3 Curved road section

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Fig. 4 Test vehicle (B社 520d)

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Fig. 5 Test measuring device

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Fig. 6 Test actual road

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Fig. 7 LKAS Lateral Acceleration

Table 1 Interantional and domestic standard & evaluation method

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Table 2 Scenario condition

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Table 3 V-box spec.

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Table 4 DAQ spec.

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Table 5 Test environmental conditions

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Table 6 Comparison between theory and actual data

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Grant : 자율주행 기술의 신뢰성 평가를 위한 실도로 기반의 실증 평가 기술 개발

Supported by : 한국산업기술평가관리원


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