KR101996420B1 - 보행자 충돌 시 충격 완화 장치 및 방법 - Google Patents
보행자 충돌 시 충격 완화 장치 및 방법 Download PDFInfo
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Abstract
Description
도 2는 자동차에 따른 PDCMS 상태 변화를 나타내는 블록도이다.
도 3은 본 발명의 일실시예에 따른 자동차의 PDCMS 작동 장치를 개략적으로 나타낸 블록도이다.
도 4는 본 발명에 따른 주행 차선 내 보행자 인식의 일실시예를 나타낸다.
도 5는 보행자 이동 속도의 개념을 나타낸다.
도 6은 본 발명에 따른 PDCMS 기능을 작동시키기 위한 매핑 테이블의 일실시예를 나타낸다.
도 7은 본 발명에 따른 PDCMS 기능을 작동시키기 위한 매핑 테이블의 일실시예를 나타낸다.
도 8은 본 발명에 따른 PDCMS 기능 작동 방법의 일실시예의 흐름을 나타낸 흐름도이다.
200: 엔진 관리 유닛
300: 영상 수집부
400: 전자 제어 유닛
500: 경보부
600: 보행자
700: 자동차
Claims (13)
- 자동차의 속도 정보를 실시간으로 획득하기 위한 엔진 관리 유닛(EMS: engine management system);
자동차의 주행 차선 내에 위치하는 보행자를 인식하고, 상기 보행자의 상기 자동차에 대한 상대 속도 및 거리에 관한 정보를 검출하는 영상 수집부;
상기 자동차의 속도 정보 및 상기 보행자의 상기 자동차에 대한 동작 또는 거리에 관한 정보를 이용하여 매핑 테이블에 기반하여 PDCMS(Pedestrian Detection and Collision Mitigation System) 기능을 작동하는 전자 제어 유닛(ECU: electronic control unit); 및
상기 전자 제어 유닛의 제어에 의하여 운전자에게 상기 자동차와 상기 보행자의 충돌을 알리도록 작동하는 경보부를 포함하고,
상기 PDCMS 기능은 액티브 후드 작동, 상기 경보부의 작동, 및 상기 운전자의 브레이크 조작 여부에 관계없는 상기 브레이크의 작동 활성화를 포함하는 것을 특징으로 하고,
상기 전자 제어 유닛은,
상기 자동차의 속도가 설정된 제 1 속도 이상인 경우에만 상기 영상 수집부를 작동시키고,
상기 보행자의 주행 차선 경계에서의 초기 속도의 절대값이 기준 범위에 속하지 않는 경우 상기 PDCMS 기능을 비활성화시키고,
상기 영상 수집부는,
상기 자동차의 주행 중 차선 영역을 추출하고,
상기 자동차에서 가장 가까운 차선의 바깥 부분부터 스캔하고,
상기 보행자의 주행 차선 내 위치, 상기 보행자의 이동 방향 및 상기 보행자의 팔다리의 각도 중 적어도 하나를 이용하여 상기 자동차의 주행 차선에 상기 보행자의 존재 유무를 판단하는 것을 특징으로 하는,
자동차의 PDCMS 작동 장치. - 제 1 항에 있어서,
상기 매핑 테이블은,
상기 보행자의 상기 자동차에 대한 거리 및 상기 브레이크의 작동 여부를 기반으로 상기 PDCMS 기능 작동을 판단하기 위한 데이터 테이블인 것을 특징으로 하는,
자동차의 PDCMS 작동 장치. - 제 2 항에 있어서,
상기 매핑 테이블에서,
상기 PDCMS 기능 작동을 판단하는 상기 자동차와 상기 보행자의 거리는,
상기 브레이크가 아직 작동되지 않는 경우가 상기 브레이크가 이미 작동되는 경우보다 긴 것을 특징으로 하는 자동차의 PDCMS 작동 장치. - 제 1 항에 있어서,
상기 매핑 테이블은,
상기 보행자의 상기 자동차에 대한 상대 속도 및 상기 자동차의 속도를 기반으로 상기 PDCMS 기능 작동을 판단하기 위한 데이터 테이블인 것을 특징으로 하는,
자동차의 PDCMS 작동 장치. - 제 1 항에 있어서,
상기 전자 제어 유닛은,
상기 보행자의 주행 차선 경계에서의 초기 속도의 절대값이 상기 기준 범위에 속하는 경우 비활성화된 상기 PDCMS 기능을 활성화하여 상기 PDCMS 기능이 작동되도록 제어하는 것을 특징으로 하는,
자동차의 PDCMS 작동 장치. - 삭제
- 제 1 항에 있어서,
상기 브레이크 작동 활성화는 상기 브레이크 작동 활성화 시점부터 상기 자동차와 상기 보행자의 충돌 시점까지 상기 자동차의 속도를 최소한 소정의 속도 이상 감소시키도록 수행되는 것을 특징으로 하는,
자동차의 PDCMS 작동 장치. - 제 1 항에 있어서,
상기 전자 제어 유닛은,
상기 PDCMS 기능이 이용가능한(Available) 상태임을 상기 운전자에 알리는 것을 특징으로 하는,
자동차의 PDCMS 작동 장치. - 제 1 항에 있어서,
상기 전자 제어 유닛은,
상기 브레이크의 작동 활성화를 시작한 뒤에도 상기 운전자에 의하여 가능한 최대치의 감속을 위한 상기 브레이크의 작동을 허용하는 것을 특징으로 하는,
자동차의 PDCMS 작동 장치. - 제 1 항에 있어서,
상기 경보부는,
상기 자동차와 상기 보행자의 충돌을 시각적으로 알리는 디스플레이부 또는 상기 자동차와 상기 보행자의 충돌을 청각적으로 알리는 스피커부를 포함하는 것을 특징으로 하는,
자동차의 PDCMS 작동 장치. - 제 1 항에 있어서,
상기 PDCMS 기능은 후방 브레이크 램프 작동을 더 포함하는 것을 특징으로 하는,
자동차의 PDCMS 작동 장치. - 제 1 항에 있어서,
상기 PDCMS 기능은 차체 자세 제어 장치(ESC: Electrical Stability Control) 작동을 더 포함하는 것을 특징으로 하는,
자동차의 PDCMS 작동 장치. - 자동차의 속도 정보를 포함하는 자동차 정보를 감지하는 단계;
상기 자동차의 주행 차선 상 보행자의 존재, 상기 보행자의 상기 자동차에 대한 거리 및 상대 속도를 포함하는 보행자 정보를 감지하는 단계;
상기 자동차 정보 및 상기 보행자 정보를 이용하여 매핑 테이블에 기반하여 PDCMS(Pedestrian Detection and Collision Mitigation System) 기능을 작동하는 단계를 포함하며,
상기 PDCMS 기능은 운전자에게 상기 자동차와 상기 보행자의 충돌을 알리도록 작동하기 위한 경보부의 작동, 및 상기 운전자의 브레이크 조작 여부에 관계없는 상기 브레이크의 작동 활성화를 포함하고,
상기 보행자 정보를 감지하는 단계는 상기 자동차의 속도가 설정된 제 1 속도 이상인 경우에만 수행되고,
상기 PDCMS 기능은 상기 보행자의 주행 차선 경계에서의 초기 속도의 절대값이 기준 범위에 속하지 않는 경우 비활성화되고,
상기 보행자의 존재를 감지하는 단계는,
상기 자동차의 주행 중 차선 영역을 추출하는 단계;
상기 자동차에서 가장 가까운 차선의 바깥 부분부터 스캔하는 단계; 및
상기 보행자의 주행 차선 내 위치, 상기 보행자의 이동 방향 및 상기 보행자의 팔다리의 각도 중 적어도 하나를 이용하여 상기 자동차의 주행 차선에 상기 보행자의 존재 유무를 판단하는 단계를 포함하는 것을 특징으로 하는,
자동차의 PDCMS 작동 방법.
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EP17205453.8A EP3342663B1 (en) | 2016-12-30 | 2017-12-05 | Method and apparatus for pedestrian collision mitigation |
US15/833,856 US20180190121A1 (en) | 2016-12-30 | 2017-12-06 | Method and apparatus for pedestrian collision mitigation |
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