KR101866014B1 - 차량의 측면충돌 회피 시스템 및 그 방법 - Google Patents
차량의 측면충돌 회피 시스템 및 그 방법 Download PDFInfo
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- KR101866014B1 KR101866014B1 KR1020160033855A KR20160033855A KR101866014B1 KR 101866014 B1 KR101866014 B1 KR 101866014B1 KR 1020160033855 A KR1020160033855 A KR 1020160033855A KR 20160033855 A KR20160033855 A KR 20160033855A KR 101866014 B1 KR101866014 B1 KR 101866014B1
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Abstract
이를 위하여, 본 발명은 차량의 측면충돌 회피 시스템에 있어서, 차량 주변의 장애물을 감지하는 복수의 레이더 센서; 차량 주변의 장애물을 감지하는 복수의 초음파 센서; 상기 레이더 센서로부터의 센서 데이터(이하, 레이더 센서 데이터)와 상기 초음파 센서로부터의 센서 데이터(이하, 초음파 센서 데이터)를 융합하여 융합 데이터를 생성한 후, 상기 융합 데이터에 기초하여 장애물을 검출하고, 상기 융합 데이터에 기초하여 상기 검출된 장애물과의 충돌 여부를 예측하는 제어부; 및 충돌로 예측된 경우 차량을 제동시키는 브레이크 구동부를 포함한다.
Description
도 2 는 본 발명에 따른 차량 내 레이더 센서와 초음파 센서의 위치를 나타내는 일예시도,
도 3 은 본 발명에 따른 차량의 측면충돌 회피 시스템을 제어하는 제어부의 상세 구성도,
도 4 는 본 발명에 따른 센서에 의해 감지된 장애물에 대한 일예시도,
도 5 는 본 발명에 따른 레이더 센서 데이터와 초음파 센서 데이터의 융합 결과를 나타내는 일예시도,
도 6 은 본 발명에 따른 레이더 센서 데이터와 초음파 센서 데이터의 융합 결과를 나타내는 상세 일예시도,
도 7 은 본 발명에 따른 관심영역에 대한 일예시도,
도 8 은 본 발명에 따른 장애물의 위치 추정 결과를 나타내는 일예시도,
도 9 는 본 발명에 따른 충돌가능영역에 대한 일예시도,
도 10 은 본 발명에 따른 융합 데이터 공분산의 표준편차에 기초한 최종 장애물과의 충돌확률을 산출하는 과정에 대한 일예시도,
도 11 은 본 발명에 따른 본 발명에 따른 차량의 측면충돌 회피 방법에 대한 일실시에 흐름도이다.
20 : 초음파 센서
30 : 브레이크 구동부
40 : 경고부
50 : 제어부
Claims (19)
- 차량 주변의 장애물을 감지하는 복수의 레이더 센서;
차량 주변의 장애물을 감지하는 복수의 초음파 센서;
상기 레이더 센서로부터의 센서 데이터(이하, 레이더 센서 데이터)와 상기 초음파 센서로부터의 센서 데이터(이하, 초음파 센서 데이터)를 융합하여 융합 데이터를 생성한 후, 상기 융합 데이터에 기초하여 장애물을 검출하고, 상기 융합 데이터에 기초하여 상기 검출된 장애물과의 충돌 여부를 예측하는 제어부; 및
충돌로 예측된 경우 차량을 제동시키는 브레이크 구동부를 포함하되,
상기 제어부는,
상기 융합 데이터의 공분산의 표준편차를 고려하여 장애물과의 충돌확률을 산출하고, 상기 산출된 충돌확률에 기초하여 장애물과의 충돌 여부를 예측하는 것을 특징으로 하는 차량의 측면충돌 회피 시스템.
- 제 1 항에 있어서,
충돌로 예측된 경우 경고음을 출력하는 경고부
를 더 포함하는 차량의 측면충돌 회피 시스템.
- 제 1 항에 있어서,
상기 제어부는,
상기 레이더 센서 데이터의 공분산과, 상기 초음파 센서 데이터의 공분산과, 상기 초음파 센서 데이터와 상기 레이더 센서 데이터의 교차 공분산에 기초하여 상기 융합 데이터의 공분산을 생성하는 것을 특징으로 하는 차량의 측면충돌 회피 시스템.
- 삭제
- 제 1 항에 있어서,
상기 제어부는,
평행 주차된 차량의 출차 시, 좌/우측 출차모드에 따라 해당 방향의 레이더 센서와 초음파 센서를 구동시키는 센서 구동부;
상기 레이더 센서 데이터와 상기 초음파 센서 데이터를 융합하는 센서 데이터 융합부;
상기 융합 데이터에 기초하여 장애물을 검출하고, 상기 검출된 장애물 중에서 관심영역 내에 위치하는 장애물을 유효 장애물로서 검출하는 유효 장애물 검출부; 및
상기 유효 장애물 검출부에 의해 검출된 유효 장애물 중에서 충돌가능영역에 위치하는 장애물을 최종 장애물로서 검출하고, 상기 최종 장애물과의 충돌확률을 계산하여 충돌 여부를 예측하는 충돌 예측부
를 포함하는 차량의 측면충돌 회피 시스템.
- 제 5 항에 있어서,
상기 센서 구동부는,
CAN(Controller Area Network), LIN(Local Interconnect Network), 플렉스레이(FlexRay), MOST(Media Oriented System Transport) 중 적어도 하나 이상을 통해 좌/우측 출차모드를 확인하는 것을 특징으로 하는 차량의 측면충돌 회피 시스템.
- 제 5 항에 있어서,
상기 센서 데이터 융합부는,
상기 레이더 센서 데이터의 공분산과, 상기 초음파 센서 데이터의 공분산과, 상기 초음파 센서 데이터와 상기 레이더 센서 데이터의 교차 공분산에 기초하여 상기 융합 데이터의 공분산을 생성하는 것을 특징으로 하는 차량의 측면충돌 회피 시스템.
- 제 5 항에 있어서,
상기 유효 장애물 검출부는,
장애물 상태변화 수학모델에 기초하여 유효 장애물이 관심영역을 벗어나는지를 지속적으로 추적하는 것을 특징으로 하는 차량의 측면충돌 회피 시스템.
- 삭제
- (a) 제어부가 레이더 센서로부터의 센서 데이터(이하, 레이더 센서 데이터)와 초음파 센서로부터의 센서 데이터(이하, 초음파 센서 데이터)를 융합하여 융합 데이터를 생성하는 단계;
(b) 상기 제어부가 상기 융합 데이터에 기초하여 장애물을 검출하는 단계;
(c) 상기 제어부가 상기 융합 데이터에 기초하여 상기 검출된 장애물과의 충돌 여부를 예측하는 단계; 및
(d) 충돌로 예측된 경우 브레이크 구동부가 차량을 제동시키는 단계를 포함하되,
상기 (c) 단계는,
상기 융합 데이터의 공분산의 표준편차를 고려하여 장애물과의 충돌확률을 산출하고, 상기 산출된 충돌확률에 기초하여 장애물과의 충돌 여부를 예측하는 것을 특징으로 하는 차량의 측면충돌 회피 방법.
- 제 11 항에 있어서,
충돌로 예측된 경우 경고음을 출력하는 단계
를 더 포함하는 차량의 측면충돌 회피 방법.
- 제 11 항에 있어서,
상기 (a) 단계 이전에 평행 주차된 차량의 출차 시, 상기 제어부가 좌/우측 출차모드에 따라 해당 방향의 레이더 센서와 초음파 센서를 구동시키는 단계
를 더 포함하는 차량의 측면충돌 회피 방법.
- 제 11 항에 있어서,
상기 (a) 단계는,
상기 레이더 센서 데이터의 공분산과, 상기 초음파 센서 데이터의 공분산과, 상기 초음파 센서 데이터와 상기 레이더 센서 데이터의 교차 공분산에 기초하여 상기 융합 데이터의 공분산을 생성하는 것을 특징으로 하는 차량의 측면충돌 회피 방법.
- 제 14 항에 있어서,
상기 (b) 단계는,
상기 융합 데이터에 기초하여 장애물을 검출하고, 상기 검출된 장애물 중에서 관심영역 내에 위치하는 장애물을 유효 장애물로서 검출하는 것을 특징으로 하는 차량의 측면충돌 회피 방법.
- 제 15 항에 있어서,
상기 (b) 단계는,
장애물 상태변화 수학모델에 기초하여 유효 장애물이 관심영역을 벗어나는지를 지속적으로 추적하는 것을 특징으로 하는 차량의 측면충돌 회피 방법.
- 제 15 항에 있어서,
상기 (c) 단계는,
상기 유효 장애물 중에서 충돌가능영역에 위치하는 장애물을 최종 장애물로서 검출하고, 상기 최종 장애물과의 충돌확률을 계산하여 충돌 여부를 예측하는 것을 특징으로 하는 차량의 측면충돌 회피 방법.
- 삭제
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