earticle

영어

This study aims to experimentally investigate the dynamic operational characteristics and effectiveness of the Electronic Parking Brake(EPB) emergency braking function across various powertrain architectures(Internal Combustion Engine-Gasoline, Diesel; Hybrid Electric Vehicle; Battery Electric Vehicle). The research utilized four popular vehicles: Genesis GV80(Gasoline), Carnival(Diesel), K5 Hybrid(HEV), and IONIQ5(BEV). Two simulated Sudden Unintended Acceleration(SUA) scenarios were performed while maintaining the accelerator pedal at Wide Open Throttle(WOT): 1) continuous EPB activation until the vehicle stops, and 2) repetitive EPB activation and deactivation. The experiments were conducted at the Korea Automobile Testing and Research Institute(KATRI) Proving Ground using a precise data acquisition system integrated with DGPS, IMU, and a CAN logger. Specifically, data representing the response characteristics of the EPB system such as the EPB activation signal, vehicle speed, deceleration, and brake pressure sensor readings were acquired and analyzed in real time. The study results quantitatively characterize the EPB system's emergency braking performance and evaluate its effectiveness as a safety mechanism to mitigate the potential risks of SUA accidents caused by driver pedal misapplication. The findings are expected to provide important foundational data for future vehicle safety system design improvements and related regulatory discussions.