곡선로 주행안전성을 위한 능동형 엑셀페달 시스템 개발

The systems to control vehicle dynamics and prevent the accidents during the cornering such as VSC(Vehicle Stability Control) or variations have already been put into practical use. The "active accelerator pedal system(AAPS)" addressed in this paper differs from those active and real time systems in that it controls an artificial counter force at the active accelerator pedal before the vehicle actually enters the curve to limit the cornering speed. The AAPS generates a pedal counterforce proportional to the difference value between the cornering safe speed and vehicle speed and pedal stroke with the help of the digital map using navigation system, and thus as vehicle speed is larger than the cornering safe speed, the accelerator pedal is more difficult to press which cause the effects of vehicle speed decrease as well as haptical warning of entering the curve. The developed AAPS has been installed into a test car and validated in the test driveway to show the effectiveness.