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박주호(Jooho Park),성동현(Donghyun Sung),이운성(Woon-Sung Lee) 한국자동차공학회 2006 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
Adaptive cruise control automatically adjusts vehicle speed and distance to a preceding vehicle, thus enhancing driver comfort and safety. Previous studies showed the adaptive cruise control induces positive behavioral adaptation by drawing consistency in driving speed and headway-time regardless of driving styles. However, the studies also showed that the drivers' reliance on the system induced negative adaptation including reduced lane keeping ability and reduced attention during driving. This study further investigated effect of negative behavioral adaptation to adaptive cruise control. Failure of adaptive cruise control was simulated using a full-scale driving simulator and driver behavior under the simulated failure was studied. Twenty drivers participated in the study to compare reaction time, distance and eye movement. Four different driving scenarios were used: ACC off, ACC on, ACC on followed by brake failure, and ACC on followed by distance sensor failure. Experiment results showed that the drivers took longer time to recognize and react to ACC failure. This indicates potential danger of negative behavioral adaptation and requires prevention strategy.