멀티센서 기술 기반 자동차 급발진 사고 증명 솔루션
Vehicle Sudden Unintended Acceleration (SUA) Proof Solution Based on Multi-Sensor Technology
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초록
최근 차량의 의도치 않은 급가속 현상과 더불어 제동 효과가 명백히 상실되는 현상인 자동차 급발진(SUA) 사고의 수가 꾸준히 증가하고 있으며이는 전세계적으로 논란의 중심이 되었다. 논쟁의 요점은 급발진 의심 사고가 차량의 결함으로 발생한 것인지 운전자의 페달 오류로 발생한 것인지에대한 것이다. 급발진 의심사고가 발생한 경우 제조사에서 차량을 수거 후 EDR(Event Date Recoder) 장치에 저장된 데이터를 기반으로 운전자의엑셀 페달의 움직인 변위량 및 브레이크 밟음 여부를 판단하여 차량의 오류 여부를 통보하고 이것이 법적으로 인정되는 구조이다. 하지만 운전자는페달 카메라와 같은 장치를 설치하여 사고 순간 브레이크 페달을 밟았다는 입증을 하지 못한다면 제조사의 주장을 따라야 하기 때문에 운전자의경험부족으로 인한 사고로 간주되는 것이 일반적인 관행이다. 또한 교통사고가 발생한 경우 무조건 급발진 사고라고 주장하는 경우가 늘어남에따라 진실여부를 파악하는 데 오랜 시간이 소요되기도 한다. 따라서 실제 사고의 원인을 정확하게 밝혀낼 수 있는 급발진 의심사고 증명 솔루션의개발이 반드시 필요하다. 자동차 급발진 의심사고의 증명을 위해서 가장 중요한 3가지는 다음과 같다. 급발진 사고 순간에 브레이크 페달을 밟았는지여부, 브레이크 페달을 적당히 밟은 것이 아닌 충분히 강하게 밟았는지 여부, 엑셀 페달을 밟거나 혹은 브레이크 페달과 엑셀 페달을 동시에 밟았는지여부이다. 이는 사용자 스스로 증명하는 것이 필요하며 이는 단순히 페달 카메라 설치를 통해서는 명확하게 증명할 수 없는 부분이다. 본 연구에서는IR 카메라, 6축 관성 센서 및 OBD2 스캐너를 설치하고 발생하는 멀티센서 데이터를 수집하고 신뢰성 있는 데이터를 제공하여 자동차 급발진의심사고를 증명할 수 있는 솔루션을 제안한다. 이를 통해 사고 순간 어떤 페달을 밟아서 얼만큼 움직였는지 정확한 변위량을 신뢰성 있는 수치데이터와 이미지를 통해 제공하기 때문에 사고 원인의 주체를 명확하게 밝혀낼 수 있으며 자동차 급발진 사고에 대한 불안감을 가지고 있는 운전자에게도 만족감을 줄 수 있다.
Abstract
Recently, the number of sudden unintended acceleration (SUA) accidents, which are a phenomenon in which the braking effect isclearly lost along with the sudden unintended acceleration of a vehicle, has been steadily increasing, and this has become the centerof controversy worldwide. The point of the controversy is whether the suspected SUA accident was caused by a defect in the vehicleor by the driver's pedal error. In the case of a suspected SUA accident, the manufacturer collects the vehicle and determines thedisplacement of the driver's accelerator pedal and whether the driver pressed the brake based on the data stored in the Event Date Recoder(EDR) device, and notifies whether the vehicle has a defect, which is legally recognized. However, if the driver cannot prove that he/shepressed the brake pedal at the moment of the accident by installing a device such as a pedal camera, he/she must follow the manufacturer'sclaim, so it is common practice to consider the accident as caused by the driver's lack of experience. In addition, as the number ofcases in which sudden acceleration is claimed unconditionally in traffic accidents increases, it takes a long time to determine the truth. Therefore, it is absolutely necessary to develop a solution to prove suspected SUA accidents that can accurately identify the actual causeof the accident. In order to prove a suspected SUA accident, the three most important things are 1. whether the brake pedal was pressedat the moment of the SUA accident, 2. whether the brake pedal was pressed hard enough rather than moderately, and 3. whether theaccelerator pedal was pressed or the brake pedal and the accelerator pedal were pressed at the same time. This requires verificationby the user themselves, and cannot be clearly proven simply by installing a pedal camera. In this paper, we propose a solution thatcan prove a suspected SUA accident by installing an IR camera, a 6-axis inertial sensor, and an OBD2 scanner, collecting the generatedmulti-sensor data, and providing reliable data. This provides the exact displacement amount of which pedal was pressed and how muchit moved at the moment of the accident through reliable numerical data and images, so it can clearly identify the cause of the accidentand provide satisfaction to drivers who are anxious about SUA accidents.
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