KR20220007904A - 차량의 파워트레인 및 제동 제어 방법 - Google Patents
차량의 파워트레인 및 제동 제어 방법 Download PDFInfo
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- KR20220007904A KR20220007904A KR1020200085396A KR20200085396A KR20220007904A KR 20220007904 A KR20220007904 A KR 20220007904A KR 1020200085396 A KR1020200085396 A KR 1020200085396A KR 20200085396 A KR20200085396 A KR 20200085396A KR 20220007904 A KR20220007904 A KR 20220007904A
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- 238000000034 method Methods 0.000 title claims description 33
- 230000001172 regenerating effect Effects 0.000 claims description 40
- 230000002159 abnormal effect Effects 0.000 claims description 13
- 230000001965 increasing effect Effects 0.000 claims description 9
- 238000010586 diagram Methods 0.000 claims description 6
- 230000003247 decreasing effect Effects 0.000 claims description 4
- 239000000446 fuel Substances 0.000 description 10
- 238000011084 recovery Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 1
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- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
- B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
- B60L15/2009—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed for braking
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
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Abstract
Description
도 2는 도 1의 파워트레인의 동력 흐름을 예시한 도면,
도 3은 본 발명에 따른 차량의 파워트레인의 제2실시예를 도시한 도면,
도 4는 본 발명에 따른 차량의 제동 제어 방법의 실시예를 도시한 순서도,
도 5는 본 발명에 따른 제동 제어 방법의 제동토크분배맵을 예시한 도면,
도 6은 본 발명에 따라 도 5와 같은 제동토크분배맵을 사용하여 제동 제어를 수행할 때, 시간이 경과하면서 요구감속도가 증가함에 따라, 모터에 의한 회생제동토크와 마찰제동기구에 의한 마찰제동토크의 변화를 정리한 그래프이다.
PG; 유성기어장치
FD; 전륜구동축
RD; 후륜구동축
G1; 제1기어
G2; 제2기어
G3; 제3기어
G4; 제4기어
G5; 제5기어
G6; 제6기어
CLR; 컨트롤러
BK; 마찰제동기구
Claims (17)
- 모터;
한 회전요소가 상기 모터와 동력을 주고받을 수 있도록 상기 모터의 회전축에 평행하게 회전되도록 설치된 유성기어장치;
상기 유성기어장치의 다른 한 회전요소로부터 동력을 전달받아 상기 모터의 회전축에 평행하게 회전하며, 전륜으로 회전력을 전달할 수 있도록 설치된 전륜구동축;
상기 유성기어장치의 나머지 한 회전요소로부터 동력을 전달받아 상기 모터의 회전축에 평행하게 회전하며, 후륜으로 회전력을 전달할 수 있도록 설치된 후륜구동축;
을 포함하여 구성된 것을 특징으로 하는 차량의 파워트레인. - 청구항 1에 있어서,
상기 유성기어장치는 싱글 피니언 유성기어장치로 구성되고;
상기 모터의 회전축은 상기 유성기어장치의 캐리어와 동력을 주고받을 수 있도록 연결된 것
을 특징으로 하는 차량의 파워트레인. - 청구항 2에 있어서,
상기 모터의 회전축은 중공축으로 형성되고;
상기 전륜구동축과 후륜구동축 중 어느 하나는 상기 모터의 회전축 내측을 관통하여 설치된 것
을 특징으로 하는 차량의 파워트레인. - 청구항 3에 있어서,
상기 모터의 회전축에는 제1기어가 구비되고;
상기 유성기어장치의 캐리어에는 상기 제1기어에 치합된 제2기어가 구비되며;
상기 유성기어장치의 링기어에는 제3기어가 구비되고;
상기 전륜구동축과 후륜구동축 중 상기 모터의 회전축을 관통하여 설치된 것에는 상기 제3기어에 치합된 제4기어가 구비된 것
을 특징으로 하는 차량의 파워트레인. - 청구항 4에 있어서,
상기 유성기어장치의 선기어에는 제5기어가 구비되고;
상기 전륜구동축과 후륜구동축 중 상기 모터의 회전축을 관통하여 설치된 것 이외의 나머지 하나에는 상기 제5기어에 치합된 제6기어가 구비된 것
을 특징으로 하는 차량의 파워트레인. - 청구항 1에 있어서,
상기 유성기어장치는 더블 피니언 유성기어장치로 구성되고;
상기 모터의 회전축은 상기 유성기어장치의 링기어와 동력을 주고받을 수 있도록 연결된 것
을 특징으로 하는 차량의 파워트레인. - 청구항 6에 있어서,
상기 모터의 회전축은 중공축으로 형성되고;
상기 전륜구동축과 후륜구동축 중 어느 하나는 상기 모터의 회전축 내측을 관통하여 설치된 것
을 특징으로 하는 차량의 파워트레인. - 청구항 3에 있어서,
상기 모터의 회전축에는 제1기어가 구비되고;
상기 유성기어장치의 링기어에는 상기 제1기어에 치합된 제2기어가 구비되며;
상기 유성기어장치의 캐리어에는 제3기어가 구비되고;
상기 전륜구동축과 후륜구동축 중 상기 모터의 회전축을 관통하여 설치된 것에는 상기 제3기어에 치합된 제4기어가 구비된 것
을 특징으로 하는 차량의 파워트레인. - 청구항 4에 있어서,
상기 유성기어장치의 선기어에는 제5기어가 구비되고;
상기 전륜구동축과 후륜구동축 중 상기 모터의 회전축을 관통하여 설치된 것 이외의 나머지 하나에는 상기 제5기어에 치합된 제6기어가 구비된 것
을 특징으로 하는 차량의 파워트레인. - 청구항 1 내지 9항 중 어느 한 항의 파워트레인을 탑재한 차량의 제동 제어 방법으로서,
컨트롤러가 이상제동력선도를 이용하여, 차속과 도로의 마찰특성 및 최대 가능 회생제동 토크를 고려한 제동토크분배맵을 생성하는 단계;
상기 컨트롤러가 상기 제동토크분배맵과 요구제동토크를 고려하여 전후륜 제동토크를 분배하는 단계;
상기 컨트롤러가 상기 분배된 전후륜 제동토크를 회생제동토크와 마찰제동토크로 분배하는 단계;
상기 컨트롤러가 상기 회생제동토크에 따라 모터를 제어함과 아울러, 상기 마찰제동토크에 따라 마찰제동기구로 마찰제동을 수행하는 단계;
를 포함하여 구성된 것을 특징으로 하는 차량의 제동 제어 방법. - 청구항 10에 있어서,
상기 이상제동력선도 상에서,
이상제동력배분선과 상기 모터로 제동 가능한 최대 감속도선의 교점을 제어점 A;
전후륜 제동력이 모두 0인 원점으로부터, 상기 제어점 A를 잇는 직선과 현재 차속을 기준으로 상기 모터로 제동 가능한 최대 감속도선의 교점을 제어점 B;
상기 제어점 B로부터, 전후륜 제동력 배분비가 일정한 제동장치의 단순제동력배분선과 동일한 기울기로 연장되는 직선이 상기 이상제동력배분선과 만나는 교점을 제어점 C;
상기 단순제동력배분선이 상기 이상제동력배분선과 만나는 교점을 제어점 D라고 할 때,
상기 제동토크분배맵은 상기 제어점 B 이하의 감속도 영역을 구간 1로 하고, 상기 제어점 B를 초과하고 제어점 C 이하인 감속도 영역을 구간 2로 하며, 상기 제어점 C를 초과하고 제어점 D 이하인 감속도 영역을 구간 3로 하고, 상기 제어점 D를 초과하는 감속도 영역을 구간 4로 구획하고;
상기 구간 1 내지 구간 4의 각 구간마다 각각 다른 제동력배분선을 따라 제동력을 배분하도록 구성된 것
을 특징으로 하는 차량의 제동 제어 방법. - 청구항 11에 있어서,
상기 구간 1에서 상기 제동력배분선은 전후륜 제동력이 모두 0인 원점으로부터 상기 제어점 B를 연결하는 직선으로 이루어지고;
상기 구간 2에서 상기 제동력배분선은 상기 제어점 B로부터 제어점 C를 연결하는 직선으로 이루어지며;
상기 구간 3에서 상기 제동력배분선은 상기 제어점 C로부터 제어점 D를 연결하는 직선으로 이루어지고;
상기 구간 4에서 상기 제동력배분선은 상기 제어점 D로부터 상기 단순제동력배분선을 따라 연장되는 직선으로 이루어진 것
을 특징으로 하는 차량의 제동 제어 방법. - 청구항 11에 있어서,
상기 구간 1에서 상기 제동력배분선은 전후륜 제동력이 모두 0인 원점으로부터 상기 제어점 B를 연결하는 직선으로 이루어지고;
상기 컨트롤러는 운전자의 요구감속도가 상기 구간 1에서 변화하는 경우에는, 상기 모터에 의한 회생제동만으로 상기 요구감속도를 충족시키는 것
을 특징으로 하는 차량의 제동 제어 방법. - 청구항 13에 있어서,
상기 구간 2에서 상기 제동력배분선은 상기 제어점 B로부터 제어점 C를 연결하는 직선으로 이루어지며;
상기 컨트롤러는 운전자의 요구감속도가 상기 구간 2에서 변화하는 경우에는, 상기 모터에 의한 회생제동은 상기 제어점 B의 수준을 유지하고, 여기에 상기 마찰제동기구에 의한 마찰제동만을 추가하도록 제어하여, 상기 요구감속도를 충족시키는 것
을 특징으로 하는 차량의 제동 제어 방법. - 청구항 14에 있어서,
상기 구간 3에서 상기 제동력배분선은 상기 제어점 C로부터 제어점 D를 연결하는 직선으로 이루어지고;
상기 컨트롤러는 운전자의 요구감속도가 상기 구간 3에서 증가하는 경우에는, 상기 모터에 의한 회생제동은 점차 감소시키면서 상기 마찰제동기구에 의한 마찰제동을 증가시켜서, 상기 요구감속도를 충족시키는 것
을 특징으로 하는 차량의 제동 제어 방법. - 청구항 15에 있어서,
상기 컨트롤러는 운전자의 요구감속도가 상기 구간 3의 전체 구간에 걸쳐, 증가함에 따라, 상기 모터에 의한 회생제동을 상기 제어점 B에서의 수준으로부터 0에 이르기까지 직선적으로 감소시키는 것
을 특징으로 하는 차량의 제동 제어 방법. - 청구항 15에 있어서,
상기 구간 4에서 상기 제동력배분선은 상기 제어점 D로부터 상기 단순제동력배분선을 따라 연장되는 직선으로 이루어지고;
상기 컨트롤러는 운전자의 요구감속도가 상기 구간 4에서 증가하면, 그에 따라 상기 마찰제동기구에 의한 마찰제동력을 선형적으로 증가시키는 것
을 특징으로 하는 차량의 제동 제어 방법.
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