KR20180078973A - 목표차량의 운전패턴에 따른 협조 적응 순항 제어 시스템 - Google Patents
목표차량의 운전패턴에 따른 협조 적응 순항 제어 시스템 Download PDFInfo
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Abstract
본 발명에 따른 CACC 시스템은 운전자 설정 메뉴를 간소화하여, 운전자 사용 편의성을 향상시킬 수 있고, CACC 시스템의 자동 주행 안전성을 도모할 수 있는 효과가 있다.
Description
도 2는 직선 도로상에서 CACC 시스템의 관심영역(Region of Interest; ROI)을 도시한 도면이다.
도 3은 본 발명의 일 실시 예에 따른 CACC 시스템의 블록도이다.
도 4는 본 발명에 따른 정보수집부(310)의 일 실시 예를 도시한 도면이다.
도 5는 본 발명의 일 실시 예에 따른CACC 시스템의 상태천이도를 나타낸 도면이다.
도 6은 판단부(339)에서 응답성을 제어하는 것을 설명하기 위한 참조도이다.
도 7은 본 발명의 일 실시 예에 따른 CACC 시스템의 목표차량을 추종하는 추종제어 방법을 도시한 순서도이다.
목표차량존재 | 목표차량연결 | PVOI존재 | CACC 모드 | 최소 타임갭 |
Maximum Deceleration |
Maximum Acceleration |
V2V통신으로 받은 데이터 사용여부 |
no | no | no | ACC 활성상태: 속도제어모드 | 0.8 s | 3.5 m/s^2 | 2.0 m/s^2 | 사용 안함 |
yes | no | no | ACC 활성상태: 추종모드 | 0.8 s | 3.5 m/s^2 | 2.0 m/s^2 | 사용 안함 |
no | no | yes | 협조 활성상태: 비추종모드 |
0.8 s | 3.5 m/s^2 | 2.0 m/s^2 | 사용 |
yes | yes | no | 협조 활성상태: 근접추종모드 |
0.5 s | 5 m/s^2 | 2.75 m/s^2 | 사용 |
yes | yes | yes | 협조 활성상태: 근접추종모드 |
0.5 s | 5 m/s^2 | 2.75 m/s^2 | 사용 |
yes | no | yes | 협조 활성상태: 추종모드 |
0.8 s | 3.5 m/s^2 | 2.0 m/s^2 | 사용 |
도로 등급별 분류 | |
Road Class 0 | 고속도로, Freeway |
Road Class 1 | 도시고속도로, Arterial |
Road Class 2 | 국도, County |
Road Class 3 | 지방도, Collector |
Road Class 4 | 국지도로/기타도로, Local/Unpaved Local |
도로 교통 소통 정보별 분류 | ||
구분 | 표시색 | 판단 |
정보없음 | 표시안함 | |
원활 | 녹색 | 고속도로(70Km이상), 도시고속도로(60Km이상), 일반도로(30Km이상) |
서행 | 노랑 | 고속도로(30~69Km이상), 도시고속도로(30~59Km이상), 일반도로(30Km이상) |
지체 | 빨강 | 고속도로(30Km미만), 도시고속도로(30Km미만), 일반도로(15Km미만) |
300: CACC 시스템
310: 정보수집부
311: 네비게이션
312: 전방정보획득부
313: 정보부
320: 통신부
330: 제어부
331: 상태관리부
333: 주행관리부
335: 목표차량 선정부
337: 분석모듈
339: 판단부
Claims (13)
- 자차량에 구비되고 자차량의 주행 속도를 제어하는 협조 적응 순항 제어(Cooperative Adaptive Cruise Control; 이하 CACC) 시스템으로서,
V2V(Vehicle to Vehicle) 및 V2I(Vehicle to Infrastructure) 통신을 이용하여 주변차량의 위치 및 주행정보를 포함하는 차량정보 및 상기 자차량이 주행중인 지역의 도로정보를 수신하는 통신부;
자차량에 구비된 센서들을 이용하여 선행차량의 주행정보, 상기 자차량의 차량정보, 및 상기 자차량이 주행 중인 지역의 도로정보를 수집하는 정보수집부; 및
상기 통신부에서 획득한 주변차량들의 차량정보 및 상기 정보수집부에서 수집한 선행차량의 주행정보를 바탕으로 상기 자차량이 추종하기 위한 목표차량을 선정하고,
상기 통신부 및 상기 정보수집부에서 수집한 상기 도로 정보를 이용하여 복수의 케이스 정보를 생성하고,
상기 목표차량의 주행정보, 상기 자차량의 차량정보를 이용하여 상기 생성된 복수의 케이스 각각에 대한 제어정보를 생성하고,
상기 생성된 제어정보에 따라 상기 목표차량의 운전패턴에 기초하여, 차간거리 및 CACC 시스템의 응답성을 제어하는 제어부;를 포함하는,
협조 적응 순항 제어 시스템. - 제1 항에 있어서,
스로틀(throttle) 및 브레이크를 제어하는 구동부를 더 포함하고,
상기 제어부는 상기 자차량의 주행 속도를 제어하기 위하여 상기 구동부를 제어하는,
협조 적응 순항 제어 시스템. - 제1 항에 있어서,
운전자로부터 목표속도 및/또는 목표 타임갭을 입력받고, 상기 협조 적응 순항 제어 시스템의 상태 정보 및 상기 목표차량의 운전패턴을 운전자에게 알려줄 수 있는 DVI부를 더 포함하는,
협조 적응 순항 제어 시스템. - 제1 항에 있어서, 상기 정보수집부는,
상기 자차량이 현재 주행 중인 지역의 도로 정보를 수집하는 네비게이션;
상기 자차량 전방에 주행 중인 선행차량의 정보를 수집하는 전방정보 획득부; 및
주행 중인 상기 자차량의 정보를 수집하는 정보부;를 포함하는,
협조 적응 순항 제어 시스템. - 제1 항에 있어서, 상기 정보수집부는,
상기 자차량이 현재 주행하는 지역의 날씨, 시간 등의 정보를 수집하는 시간센서, 조도센서, 및 레인센서를 더 포함하는,
협조 적응 순항 제어 시스템. - 제1 항에 있어서, 상기 제어부는,
협조 적응 순항 제어 시스템의 상태를 관리하는 상태관리부;
상기 통신부에서 획득한 주변차량들의 차량정보 및 상기 정보수집부에 수집한 선행차량의 주행정보를 바탕으로 상기 자차량이 추종하기 위한 목표차량을 선정하는 목표차량 선정부;
상기 통신부 및 상기 정보수집부에서 수집한 상기 도로 정보를 이용하여 복수의 케이스 정보를 생성하고, 상기 목표차량의 주행정보, 상기 자차량의 차량정보를 이용하여 상기 생성된 복수의 케이스 각각에 대한 제어정보를 생성하고,
상기 생성된 제어정보에 따라 상기 목표차량의 운전패턴을 결정하고, 결정된 운전패턴에 기초하여 차간거리를 결정하는 분석모듈;
상기 분석모듈로부터 전달받은 상기 결정된 운전패턴에 기초하여 CACC 시스템의 응답성을 결정하는 판단부; 및
상기 결정된 차간거리 및 응답성에 따라 상기 자차량의 주행 속도를 제어하는 주행관리부; 를 포함하는,
협조 적응 순항 제어 시스템. - 제 6 항에 있어서,
상기 상태관리부는 협조 적응 순항 제어 시스템이 동작하지 않는 오프(OFF)상태, 동작은 하지만 상기 자차량의 주행 속도를 제어하지 않는 대기상태, V2V 통신으로 연결되어 있는 관심영역 내 차량이 없이 상기 자차량에서 획득한 정보만을 이용하여 상기 자차량의 주행 속도를 제어하는 ACC 활성상태, 및 V2V 통신으로 연결되어 있는 관심영역 내의 주변차량이 있어, 상기 V2V 통신을 통해 획득한 주변차량으로부터의 정보 및 상기 자차량에서 획득한 정보를 이용하여 상기 자차량의 주행 속도를 제어하는 협조 활성상태 중의 하나로 상기 협조 적응 순항 제어 시스템의 상태를 표시하는,
협조 적응 순항 제어 시스템. - 제 6 항에 있어서, 상기 분석모듈은,
상기 목표차량의 운전패턴 데이터에 기초하여, 상기 목표차량과 설정된 거리를 유지하기 위한 상기 자차량의 제어 정보를 생성하는,
협조 적응 순항 제어 시스템. - 제 6 항에 있어서, 상기 분석모듈은,
상기 자차량의 제어 정보와 현재 주행 중인 지역의 도로정보를 매칭시키는,
협조 적응 순항 제어 시스템. - 자차량에 구비되고 자차량의 주행 속도를 제어하는 협조 적응 순항 제어(Cooperative Adaptive Cruise Control; 이하 CACC) 시스템의 차간거리 및 응답성을 설정하는 방법으로서,
상기 자차량이 현재 주행 중인 지역의 도로등급 및 교통정보를 포함하는 도로정보를 수집하는 단계;
상기 자차량 전방에 주행중인 목표차량의 상대 속도 정보, 거리 정보를 수집하는 단계;
상기 자차량의 속도 정보 및 차량 상태 정보를 수집하는 단계;
상기 도로등급 및 교통정보를 바탕으로 상기 목표차량의 운전 패턴 데이터를 생성하는 단계; 및
상기 자차량의 제어 정보에 따라 상기 목표차량의 운전 패턴에 기초하여, 차간거리 및 상기 CACC 시스템의 응답성을 설정하는 단계;를 포함하는,
CACC 시스템의 차간거리 및 응답성 설정방법. - 제 10 항에 있어서,
상기 목표차량의 운전 패턴 데이터를 생성하는 단계는,
상기 목표차량의 운전 패턴의 데이터에 기초하여, 상기 목표 차량과 설정된 거리를 유지하기 위한 상기 자차량의 제어 정보를 생성하는 단계;를 더 포함하는,
CACC 시스템의 차간거리 및 응답성 설정방법. - 제 11 항에 있어서,
상기 차량의 제어 정보를 생성하는 단계는,
상기 주행 중인 차량의 제어 정보와 상기 현재 주행 중인 지역의 도로 정보를 매칭하는 단계;를 더 포함하는,
CACC 시스템의 차간거리 및 응답성 설정방법. - 제10 항에 있어서,
상기 응답성을 제어하는 단계는,
상기 도로 정보에 따른 상기 목표 차량의 운전 패턴을 표시하는 단계;를 더 포함하는
CACC 시스템의 차간거리 및 응답성 설정방법.
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WO2023128406A1 (ko) * | 2021-12-28 | 2023-07-06 | 한국교통연구원 | 커넥티드 자율 주행차의 안전 모니터링 및 운영설계범위를 지원하는 관제 서버 |
KR102477885B1 (ko) | 2022-01-18 | 2022-12-15 | 재단법인차세대융합기술연구원 | 자율주행 도로의 주행 안전도를 평가하는 안전도 분석 관리 서버 |
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CN115214661B (zh) | 2024-12-03 |
KR102107774B1 (ko) | 2020-05-07 |
CN108263382A (zh) | 2018-07-10 |
EP3342668A3 (en) | 2018-10-17 |
CN108263382B (zh) | 2022-11-11 |
CN115214661A (zh) | 2022-10-21 |
EP3342668A2 (en) | 2018-07-04 |
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