KR102563005B1 - 차량 및 그 제어 방법 - Google Patents
차량 및 그 제어 방법 Download PDFInfo
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- KR102563005B1 KR102563005B1 KR1020180157529A KR20180157529A KR102563005B1 KR 102563005 B1 KR102563005 B1 KR 102563005B1 KR 1020180157529 A KR1020180157529 A KR 1020180157529A KR 20180157529 A KR20180157529 A KR 20180157529A KR 102563005 B1 KR102563005 B1 KR 102563005B1
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Abstract
일 실시예에 따른 차량은, 선행 차량의 속도 정보 및 상기 선행 차량까지의 거리 정보를 획득하는 레이더; 차량의 거동 정보를 획득하는 센서; 및 상기 차량의 거동 정보에 기초하여 교통 정체 구간에 진입 여부를 판단하고, 상기 선행 차량에 대한 안전 거리 및 잉여 거리를 산출하며, 상기 잉여 거리에 기초하여 최대 크립 속도 및 크립 토크를 산출하고, 상기 크립 토크를 휠에 전달하도록 모터 및 엔진 중 적어도 하나의 구동을 제어하는 제어부;를 포함한다.
Description
도 2는 일 실시예에 따른 차량의 제어 블록도이다.
도 3은 제어부의 상세 블록도이다.
도 4는 안전 거리를 설명하기 위한 그래프이다.
도 5는 안전 거리를 산출하는데 이용되는 안전율을 설명하기 위한 표이다.
도 6은 잉여 거리에 따라 최대 크립 속도가 변경 설정되는 것을 설명하기 위한 표이다.
도 7은 최대 크립 속도와 크립 토크 간의 관계를 도시하는 그래프이다.
도 8은 일 실시예에 따른 차량의 제어 방법을 설명하는 순서도이다.
21: 엔진
23: 모터
24: 변속기
26: 배터리
110: 통신부
120: 레이더
130: 센서
140: 사용자 인터페이스 장치
200: 제어부
Claims (22)
- 선행 차량의 속도 정보 및 상기 선행 차량까지의 거리 정보를 획득하는 레이더;
차량의 거동 정보를 획득하는 센서; 및
상기 차량의 거동 정보에 기초하여 교통 정체 구간에 진입 여부를 판단하고, 상기 선행 차량에 대한 안전 거리 및 잉여 거리를 산출하며, 상기 잉여 거리에 기초하여 최대 크립 속도 및 크립 토크를 산출하고, 상기 크립 토크를 휠에 전달하도록 모터 및 엔진 중 적어도 하나의 구동을 제어하는 제어부;를 포함하되,
상기 잉여 거리에 대응하는 최대 크립 속도 정보를 저장하는 메모리;를 더 포함하고,
상기 제어부는
상기 선행 차량까지의 거리와 상기 안전 거리의 차이 값을 상기 잉여 거리로 산출하고, 상기 메모리로부터 상기 최대 크립 속도를 가져오는 차량. - 제1항에 있어서,
상기 제어부는
일정 시간 동안 상기 차량의 속도의 평균 값이 미리 정해진 값 이하이고, 가속 페달 또는 브레이크 페달의 조작 빈도가 미리 정해진 횟수 이상인 경우, 상기 교통 정체 구간에 진입한 것으로 판단하는 차량. - 제1항에 있어서,
외부 서버와 통신하는 통신부;를 더 포함하고,
상기 제어부는
상기 외부 서버로부터 현재 주행 도로의 교통 정보를 획득하고, 일정 시간 동안 상기 현재 주행 도로의 제한 속도와 상기 차량의 현재 속도의 비율이 미리 정해진 값 이상인 경우, 상기 교통 정체 구간에 진입한 것으로 판단하는 차량. - 삭제
- 제1항에 있어서,
상기 제어부는
상기 선행 차량에 대한 위험이 감지된 후 제동이 시작되기 전까지 이동 거리인 반응 거리와, 제동 시작 후 정지할 때까지 이동 거리인 제동 거리의 합을 상기 안전 거리로 산출하는 차량. - 제5항에 있어서,
상기 제어부는
상기 선행 차량에 대한 위험이 감지되는 시점의 상기 차량의 속도에 안전율을 적용하여 상기 반응 거리를 산출하는 차량. - 제1항에 있어서,
상기 제어부는
상기 최대 크립 속도 및 상기 차량의 현재 속도의 차이 값에 기초하여 상기 크립 토크를 갱신하는 차량. - 제1항에 있어서,
상기 제어부는
배터리에 의한 주행 가능 거리(DTE, Distance To Empty)를 산출하고, 상기 주행 가능 거리와 상기 선행 차량까지의 거리를 비교하여 상기 모터 및 상기 엔진 중 적어도 하나의 구동을 결정하는 차량. - 제8항에 있어서,
상기 제어부는
상기 주행 가능 거리가 상기 선행 차량까지의 거리 이상인 경우, EV 모드로 주행하도록 결정하여 상기 모터의 구동을 제어하는 차량. - 제8항에 있어서,
상기 제어부는
상기 주행 가능 거리가 상기 선행 차량까지의 거리 미만이고, 상기 배터리를 충전하는 충전 에너지가 상기 크립 토크에 대응하는 에너지보다 큰 경우, Series EV 모드로 주행하도록 결정하여 상기 엔진 및 상기 모터의 구동을 제어하는 차량. - 제8항에 있어서,
상기 제어부는
상기 주행 가능 거리가 상기 선행 차량까지의 거리 미만이고, 상기 배터리를 충전하는 충전 에너지가 상기 크립 토크에 대응하는 에너지보다 작은 경우, HEV 모드로 주행하도록 결정하여 상기 엔진 및 상기 모터의 구동을 제어하는 차량. - 선행 차량의 속도 정보 및 상기 선행 차량까지의 거리 정보를 획득하는 단계;
차량의 거동 정보를 획득하는 단계;
상기 차량의 거동 정보에 기초하여 교통 정체 구간에 진입 여부를 판단하는 단계;
상기 선행 차량에 대한 안전 거리 및 잉여 거리를 산출하는 단계;
상기 잉여 거리에 기초하여 최대 크립 속도 및 크립 토크를 산출하는 단계; 및
상기 크립 토크를 휠에 전달하도록 모터 및 엔진 중 적어도 하나의 구동을 제어하는 단계;를 포함하되,
상기 안전 거리 및 잉여 거리를 산출하는 단계는
상기 선행 차량까지의 거리와 상기 안전 거리의 차이 값을 상기 잉여 거리로 산출하는 단계; 및
상기 잉여 거리에 대응하는 최대 크립 속도 정보를 메모리에서 가져오는 단계;를 포함하는 차량의 제어 방법. - 제12항에 있어서,
상기 교통 정체 구간에 진입 여부를 판단하는 단계는
일정 시간 동안 상기 차량의 속도의 평균 값이 미리 정해진 값 이하이고, 가속 페달 또는 브레이크 페달의 조작 빈도가 미리 정해진 횟수 이상인 경우, 상기 교통 정체 구간에 진입한 것으로 판단하는 단계;를 포함하는 차량의 제어 방법. - 제12항에 있어서,
외부 서버로부터 현재 주행 도로의 교통 정보를 획득하는 단계;를 더 포함하고,
상기 교통 정체 구간에 진입 여부를 판단하는 단계는
일정 시간 동안 상기 현재 주행 도로의 제한 속도와 상기 차량의 현재 속도의 비율이 미리 정해진 값 이상인 경우, 상기 교통 정체 구간에 진입한 것으로 판단하는 단계;를 포함하는 차량의 제어방법. - 삭제
- 제12항에 있어서,
상기 안전 거리 및 잉여 거리를 산출하는 단계는
상기 선행 차량에 대한 위험이 감지된 후 제동이 시작되기 전까지 이동 거리인 반응 거리와, 제동 시작 후 정지할 때까지 이동 거리인 제동 거리의 합을 상기 안전 거리로 산출하는 단계;를 포함하는 차량의 제어 방법. - 제16항에 있어서,
상기 안전 거리 및 잉여 거리를 산출하는 단계는
상기 선행 차량에 대한 위험이 감지되는 시점의 상기 차량의 속도에 안전율을 적용하여 상기 반응 거리를 산출하는 단계;를 포함하는 차량의 제어 방법. - 제12항에 있어서,
상기 최대 크립 속도 및 크립 토크를 산출하는 단계는
상기 최대 크립 속도 및 상기 차량의 현재 속도의 차이 값에 기초하여 상기 크립 토크를 갱신하는 단계;를 포함하는 차량의 제어 방법. - 제12항에 있어서,
상기 모터 및 상기 엔진 중 적어도 하나의 구동을 제어하는 단계는
배터리에 의한 주행 가능 거리(DTE, Distance To Empty)를 산출하는 단계; 및
상기 주행 가능 거리와 상기 선행 차량까지의 거리를 비교하여 상기 모터 및 상기 엔진 중 적어도 하나의 구동을 결정하는 단계;를 포함하는 차량의 제어 방법. - 제19항에 있어서,
상기 모터 및 상기 엔진 중 적어도 하나의 구동을 결정하는 단계는
상기 주행 가능 거리가 상기 선행 차량까지의 거리 이상인 경우, EV 모드로 주행하도록 결정하여 상기 모터의 구동을 제어하는 단계;를 포함하는 차량의 제어 방법. - 제19항에 있어서,
상기 모터 및 상기 엔진 중 적어도 하나의 구동을 결정하는 단계는
상기 주행 가능 거리가 상기 선행 차량까지의 거리 미만이고, 상기 배터리를 충전하는 충전 에너지가 상기 크립 토크에 대응하는 에너지보다 큰 경우, Series EV 모드로 주행하도록 결정하여 상기 엔진 및 상기 모터의 구동을 제어하는 단계;를 포함하는 차량의 제어 방법. - 제19항에 있어서,
상기 모터 및 상기 엔진 중 적어도 하나의 구동을 결정하는 단계는
상기 주행 가능 거리가 상기 선행 차량까지의 거리 미만이고, 상기 배터리를 충전하는 충전 에너지가 상기 크립 토크에 대응하는 에너지보다 작은 경우, HEV 모드로 주행하도록 결정하여 상기 엔진 및 상기 모터의 구동을 제어하는 단계;를 포함하는 차량의 제어 방법.
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