KR101569223B1 - 지면에 대한 차속 판단을 이용한 차량 제어 시스템 - Google Patents
지면에 대한 차속 판단을 이용한 차량 제어 시스템 Download PDFInfo
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Abstract
Description
도 1a는 탑재 장치에 의한 전기 에너지 생성을 하는 네 개의 구동 차륜을 구비한 전기 차량의 구동 및 제동을 제어하기 위한 시스템을 개략적으로 도시한 도면이고, 도 1b는 도 1a 도시된 차량의 일부를 보다 상세히 도시한 다이어그램이다.
도 2는 지면에 대한 해당 차륜의 슬립의 함수로서 차륜의 로드 그립 계수의 변화를 나타내는 도표이다.
도 3은 본 발명의 일 태양에 따른, 슬립을 측정하고 이런 측정값의 함수로서 전류를 조절하기 위한 모듈의 작업을 도시하는 블록 다이어그램이다.
도 4a 및 도 4b는 본 발명의 시스템의 다른 모듈의 작업을 도시한 흐름도이다.
도 5a 및 도 5b는 차량이 측정한 데이터로부터 지면의 경사각을 판단하는 것에 대한 설명도이다.
도 6은 경사각 및 가속도 측정값을 보정하기 위한 신호 처리 스테이지를 아주 개략적으로 도시한 도면이다.
도 7a, 도 7b 및 도 7c는 도 6의 신호 처리 스테이지에서 생성된 신호를 도시한 도표이다.
도 8은 차량에 작용하는 힘의 인가점을 정의하는 도면이다.
Claims (22)
- 소정의 순간에서의 차륜의 회전의 함수인 측정값을 제공하도록 구성된 센서가 각각 설치된, 적어도 두 개의 차륜을 구비한 차량의 지면에 대한 순간 속도 추산값을 포함하고,
a) 대응하는 센서의 측정값으로부터 각각의 차륜에 대한 원주 방향 속도의 함수인 지시값을 당해 순간에 제공하도록 구성된 지시계(23C)와,
b) 상기 차륜의 조건을 진단 또는 시험하기 위한 단계의 완료 시에 상기 지시계(23C)로부터 얻어진 지시값의 함수로서 당해 순간에 차량의 지면에 대한 순간 속도 추산값을 생성하도록 구성된 차량 속도 지시계(313)를 포함하는 차량 제어 시스템이며,
c) 차량 탑재 상의 다른 측정값으로부터 얻어진 적어도 하나의 슬립 정보 데이터에 기초하여, 차륜이 롤링하고 있는 지면의 상태에 상관없이 차륜이 로드 그립 조건에 있음을 가리키는 로드 그립 진단 또는 시험을 수행하기 위한 제1 수단(113)을 포함하는 확인 장치를 포함하고,
차량 속도 지시계(313)는, 제1 수단에 의해 알아낸 로드 그립을 갖는 적어도 하나의 차륜의 원주 방향 속도 지시값으로부터 상기 차량의 지면에 대한 순간 속도 추산값을 생성하도록 상기 확인 장치로부터 얻어진 정보의 함수로서 작동하고,
차량의 턴 반경과 턴에서의 이러한 차륜의 위치의 함수로서 보정된 각각의 차륜의 원주 방향 속도의 지시값을 생성하도록 차량의 순간 턴 반경의 함수로서의 지시값을 확인 장치와 차량 속도 지시계에 공급하도록 구성된 센서를 더 포함하는 것을 특징으로 하는 차량 제어 시스템. - 제1항에 있어서,
상기 슬립 정보는 차량 속도의 이전 추산값 및/또는 로드 그립 계수 측정값에 기초하는 것을 특징으로 하는 차량 제어 시스템. - 제2항에 있어서,
제1 수단의 시험은 3% 이하인 슬립 기준 및/또는 15% 이하인 로드 그립 계수 기준에 기초하는 것을 특징으로 하는 차량 제어 시스템. - 제1항에 있어서,
확인 장치는 d) 차륜 로드 그립의 손실을 시험하도록 구성된 제2 수단(109)을 포함하고, 제1 수단은 제2 수단에 의한 로드 손실 없는 파지티브 시험(positive test)을 받는 차륜에서만 작동하는 것을 특징으로 하는 차량 제어 시스템. - 제4항에 있어서,
d) 제2 수단(109)은 대응하는 차륜 센서로부터 얻어진, 양 또는 음의 차륜 가속 측정값으로부터 차륜 로드 그립의 손실을 검출하도록 구성된 것을 특징으로 하는 차량 제어 시스템. - 제5항에 있어서,
d) 제2 수단(109)은, 로드 그립의 손실이 있는 차륜에 대응하는 지시값을 배제하도록, 차륜이 가속되는지 또는 감속되는지에 따라 달라지는 임계값의 함수로서 각 차륜의 로드 그립의 손실을 검출하도록 구성된 것을 특징으로 하는 차량 제어 시스템. - 제4항에 있어서,
확인 장치는, 또한, e) 상기 차륜의 로드 그립 계수의 측정값에 기초하여 구하고자 하는 차량 속도의 수용가능한 근사값을 제공하도록 원주 방향 차륜 속도 지시값의 유효성을 시험하기 위한 제3 수단(107)을 포함하고,
차량 속도 지시계(313)는, 제1 수단, 제2 수단, 제3 수단 중 적어도 두 개에 의한 파지티브 시험을 받은 조건의 차륜으로부터만 얻은 원주 방향 속도 지시값으로부터 상기 차량의 지면에 대한 순간 속도 추산값을 생성하도록 선택적으로 작동하는 것을 특징으로 하는 차량 제어 시스템. - 제7항에 있어서,
제3 수단(107)은, 제1 임계값에 대한 로드 그립 계수의 값을 시험하도록 구성되며, 제1 임계값 미만에서는, 원주 방향 차륜 속도가 해당 차륜의 위치에서 차량의 지면 속도의 계산을 위해 유효한 근사값으로서 유지될 수 있는 것을 특징으로 하는 차량 제어 시스템. - 제8항에 있어서,
슬립 정보 데이터의 함수로서 경사진 지면의 상태에 상관없이 차륜의 로드 그립 조건을 알아내도록 구성된 제1 수단(113)은, (i) 상기 제1 임계값보다 작은 제2 임계값의 함수로서 로드 그립 계수의 측정 시험 및/또는 (ii) 소정의 임계값에 대하여 선행하는 순간에서의 차량의 지면에 대한 순간 속도 추산값으로부터 계산된 순간 차륜 슬립률의 값의 시험에 기초하는 것을 특징으로 하는 차량 제어 시스템. - 제7항에 있어서,
d) 제2 수단(109)은, 대응하는 차륜 센서로부터 얻은 양 또는 음의 차륜 가속 측정값으로부터 해당 차륜의 로드 그립의 손실을 검출하도록 구성된 것을 특징으로 하는 차량 제어 시스템. - 제10항에 있어서,
d) 제2 수단(109)은, 로드 그립의 손실이 있는 차륜에 대응하는 지시값을 배제하도록, 차륜이 가속되는지 또는 감속되는지에 따라 달라지는 임계값의 함수로서 각 차륜의 로드 그립의 손실을 검출하도록 구성된 것을 특징으로 하는 차량 제어 시스템. - 제1항에 있어서,
차량 속도(313) 지시기(319)는 고려 중인 순간에서의 확인 장치에 의해 유지된 속도 지시값의 평균값을 계산할 수 있는 것을 특징으로 하는 차량 제어 시스템. - 제1항에 있어서,
확인 장치는, 또한, 확인 스테이지의 입력에 연결된 차량의 데이터 송신 네트워크(들) 및/또는 차륜 센서의 동작의 완전성(integrity)을 진단하는 수단(103)을 포함하는 것을 특징으로 하는 차량 제어 시스템. - 제1항에 있어서,
확인 장치는, 주행시 해당 차륜의 각각에 인가되는 토오크의 지시값에 응답하여 및 해당 차륜의 각각에 대한 차량의 동적 부하의 지시값에 응답하여 동작하는 로드 그립 계수를 계산하기 위한 모듈을 포함하는 것을 특징으로 하는 차량 제어 시스템. - 삭제
- 제4항에 있어서,
상기 제1 수단은, 차량 속도의 이전 추산값에 기초하여 계산된 차륜 슬립의 값이 약 3%의 임계값 이하인지를 시험함으로써 차륜의 로드 그립 조건을 알아내도록 구성된 것을 특징으로 하는 차량 제어 시스템. - 제4항에 있어서,
상기 제1 수단은, 차륜에 대한 로드 그립 계수의 계산값이 약 15% 이하인지를 시험함으로써 차륜의 로드 그립 조건을 지시하도록 구성된 것을 특징으로 하는 차량 제어 시스템. - 주행시 견인 및/또는 제동 토오크를 받는 적어도 하나의 차륜(1)의 순간 슬립의 지시값의 발생에 기초하여 지면에 대한 차량을 제어하고,
차륜의 회전의 함수인 측정값을 제공하도록 구성된 센서(11)와,
상기 센서의 측정값에 기초한 원주 방향 차륜 속도의 함수로서 양을 제공하기에 적합한 제1 지시계(23C)를 포함하는 차량 제어 시스템이며,
제1항, 제4항, 제7항, 또는 제9항 중 어느 한 항에 따른 차량 제어 시스템에 기초하여, 상기 차륜의 위치에서 지면에 대한 차량의 순간 속도 추산값을 공급하도록 구성된 제2 지시계(3, Vv)와,
해당 차륜의 위치에서 차량의 이동의 속도와 차륜의 원주 방향 속도 사이의 편차(el)의 함수로서 상기 차륜의 슬립의 지시값을 제공하도록 소정 순간에 제1 및 제2 지시계에 응답하여 작동하는 계산 스테이지(16, 17, 23D, 23E)를 포함하는 것을 특징으로 하는 차량 제어 시스템. - 제1항, 제4항, 제7항, 또는 제9항 중 어느 한 항에 따른 차량 제어 시스템을 포함하는, 견인 및 제동에서의 해당 차륜을 완전하게 단독으로 구동하도록 구성된 회전 전기 기계에 연결된 적어도 하나의 차륜이 설치된 전기 견인 차량.
- 삭제
- 삭제
- 삭제
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- 2008-11-10 US US12/739,875 patent/US8527177B2/en not_active Expired - Fee Related
- 2008-11-10 KR KR1020107010153A patent/KR101569223B1/ko not_active Expired - Fee Related
- 2008-11-10 EP EP08847477.0A patent/EP2217476B1/fr not_active Not-in-force
- 2008-11-10 WO PCT/EP2008/065191 patent/WO2009060090A1/fr active Application Filing
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KR20210059832A (ko) | 2019-11-15 | 2021-05-26 | 현대위아 주식회사 | 사륜구동 제어방법 및 시스템 |
Also Published As
Publication number | Publication date |
---|---|
WO2009060090A1 (fr) | 2009-05-14 |
EP2217476B1 (fr) | 2014-03-05 |
FR2923436B1 (fr) | 2010-04-09 |
CN101939196A (zh) | 2011-01-05 |
KR20100096079A (ko) | 2010-09-01 |
US8527177B2 (en) | 2013-09-03 |
CN101939196B (zh) | 2014-09-10 |
EP2217476A1 (fr) | 2010-08-18 |
US20100256887A1 (en) | 2010-10-07 |
FR2923436A1 (fr) | 2009-05-15 |
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