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임형욱,박성준,정성욱,정의승,Lim, Hyoung-Uk,Park, Sung-Joon,Jeong, Seong-Wook,Jung, Eui-S. 대한인간공학회 2007 大韓人間工學會誌 Vol.26 No.1
As drivers spend more time in their cars, perception of driving a vehicle turns from utilizing a transportation means into residing in a personal space or even in moving office. Such a perception renders automobile manufacturers incorporate more vehicle functions, especially in-vehicle information systems As the number of system functions increases, the complexity of control and 2 types of display menus were designed after a literature review and a market analysis. With these controls and display menus, the experiment was performed to look into the difference of driver performance and preference on the integrated vehicle control type. Finally, the study suggests the integrated vehicle control type to minimize driver's cognitive load, and to use various functions efficiently. The study also discusses the practical use of the final integrated vehicle control type.
드라이빙 시뮬레이터를 활용한 차량속도에 따른 차간거리 허용한계치 원리연구
임성현(Sung-Hyun Lim),임형욱(Hyoung-Uk Lim),정인용(Inyong Jung),전권수(Kweons Jeon) 한국자동차공학회 2009 한국자동차공학회 학술대회 및 전시회 Vol.2009 No.11
The purpose of the study is to investigate the minimal acceptable distance between two adjacent vehicles using a driving simulator. One factor within subject design was adopted for the experiment. As independent variable, the relative velocity between two adjacent vehicles was selected. The relative velocity had 5 levels: 0, 20, 40, 60, 80㎞/h. For the statistical analyses, the minimal acceptable distance between two adjacent vehicles and time-to-collision (TTC) were selected as dependent variables. The TTC means the value that the minimal acceptable distance divided by the relative velocity at the time that the driver started to press the brake pedal. Thirteen drivers participated in the experiment. The subjects were asked to drive at 100㎞/h and to press the brake pedal at the moment when he felt that the vehicle could collide with a preceding vehicle. The velocity of the preceding vehicle was randomly selected among 0, 20, 40, 60, 80㎞/h. The each treatment was repeated 3 times. The subjects drove a simulated track course for 15 minutes. The results showed that 1) the minimal value of the TTC at the moment when the subjects pressed the brake pedal was about 2 seconds, regardless of the relative velocities of two adjacent vehicles 2) as the relative velocity of two adjacent vehicles increased, the average value of the TTC decreased. The differences among driver’s braking behavior patterns were discussed