KR102614161B1 - 차량의 댐퍼속도 도출 시스템 - Google Patents
차량의 댐퍼속도 도출 시스템 Download PDFInfo
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- KR102614161B1 KR102614161B1 KR1020180158963A KR20180158963A KR102614161B1 KR 102614161 B1 KR102614161 B1 KR 102614161B1 KR 1020180158963 A KR1020180158963 A KR 1020180158963A KR 20180158963 A KR20180158963 A KR 20180158963A KR 102614161 B1 KR102614161 B1 KR 102614161B1
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- 239000000725 suspension Substances 0.000 claims abstract description 42
- 238000009795 derivation Methods 0.000 claims abstract description 28
- 238000004364 calculation method Methods 0.000 claims abstract description 23
- 230000001133 acceleration Effects 0.000 claims abstract description 18
- 238000013016 damping Methods 0.000 claims description 5
- 230000005856 abnormality Effects 0.000 claims description 4
- 230000037396 body weight Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
- B60G17/015—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
- B60G17/019—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the type of sensor or the arrangement thereof
- B60G17/01933—Velocity, e.g. relative velocity-displacement sensors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
- B60G17/015—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
- B60G17/016—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input
- B60G17/0162—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input mainly during a motion involving steering operation, e.g. cornering, overtaking
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
- B60G17/015—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
- B60G17/019—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the type of sensor or the arrangement thereof
- B60G17/01908—Acceleration or inclination sensors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2400/00—Indexing codes relating to detected, measured or calculated conditions or factors
- B60G2400/10—Acceleration; Deceleration
- B60G2400/102—Acceleration; Deceleration vertical
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2400/00—Indexing codes relating to detected, measured or calculated conditions or factors
- B60G2400/20—Speed
- B60G2400/204—Vehicle speed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2400/00—Indexing codes relating to detected, measured or calculated conditions or factors
- B60G2400/20—Speed
- B60G2400/204—Vehicle speed
- B60G2400/2042—Lateral speed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2400/00—Indexing codes relating to detected, measured or calculated conditions or factors
- B60G2400/25—Stroke; Height; Displacement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2400/00—Indexing codes relating to detected, measured or calculated conditions or factors
- B60G2400/40—Steering conditions
- B60G2400/41—Steering angle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2800/00—Indexing codes relating to the type of movement or to the condition of the vehicle and to the end result to be achieved by the control action
- B60G2800/01—Attitude or posture control
- B60G2800/012—Rolling condition
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2800/00—Indexing codes relating to the type of movement or to the condition of the vehicle and to the end result to be achieved by the control action
- B60G2800/01—Attitude or posture control
- B60G2800/014—Pitch; Nose dive
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
Description
도 2는 도 1에 도시된 차량의 댐퍼속도 도출 시스템의 제어 순서도.
20:판단모듈
30:도출모듈
40:연산모듈
50:출력부
Claims (9)
- 센서모듈로부터 횡가속도 정보를 입력받고, 기저장된 차량 정보를 이용하여 스프렁매스로서의 차체 거동에 따른 각 코너의 타이어수직력을 도출하는 도출모듈;
도출모듈에 의해 도출된 타이어수직력을 입력받고, 스프렁매스와 언스프렁매스 사이의 서스페션기구에 따른 각 코너의 서스펜션힘과 타이어수직력을 이용하여 각 코너의 댐퍼속도를 도출하는 연산모듈; 및
연산모듈에 의해 도출된 각 코너의 댐퍼속도를 출력하는 출력부;를 포함하며,
차량의 조향 정보를 입력받아 선회 주행 여부를 판단하는 판단모듈;을 더 포함하고,
판단모듈은 조향각 또는 조향각속도가 기설정된 한계값 이상일 경우 선회 주행으로 판단하여 연산모듈이 댐퍼속도를 연산하도록 신호를 보내며, 롤레이트 및 피치레이트가 각 경계값을 초과할 경우 차량 상태이상으로 판단하여 연산모듈의 댐퍼속도 연산이 수행되지 않도록 신호를 보내는 것을 특징으로 하는 차량의 댐퍼속도 도출 시스템. - 삭제
- 청구항 1에 있어서,
판단모듈은 차량의 주행속도 정보를 더 입력받고, 주행속도가 설정속도를 초과할 경우 선회주행 여부를 판단하는 것을 특징으로 하는 차량의 댐퍼속도 도출 시스템. - 삭제
- 청구항 1에 있어서,
도출모듈은, 차체 중량, 롤 센터높이, 전륜 및 후륜의 트레드에 따른 차량 정보와 센서모듈을 통해 측정된 차량의 횡방향 가속도에 따른 횡가속도 정보를 이용하여 각 코너의 타이어수직력을 도출하는 것을 특징으로 하는 차량의 댐퍼속도 도출 시스템. - 청구항 5에 있어서,
도출모듈에서 각 코너의 타이어수직력을 도출하기 위한 차량거동 방정식은 하기와 같은 것을 특징으로 하는 차량의 댐퍼속도 도출 시스템.
Fz_tire_FL:전방 좌륜의 타이어수직력[N] Fz_tire_FR:전방 우륜의 타이어수직력[N]
Fz_tire_RL:후방 좌륜의 타이어수직력[N] Fz_tire_RR:후방 후륜의 타이어수직력[N]
mtot:차량 중량[kg] ay:횡가속도[m/s2]
hroll:롤 센터높이[m] t1:전륜 트레드[m]
t2:후륜 트레드[m] - 청구항 6에 있어서,
연산모듈은, 타이어수직력을 도출하는 차량거동 방정식과 스프렁매스와 언스프링매스 사이의 서스펜션힘을 도출하는 서스펜션힘 방정식을 병합하여 댐퍼속도를 연산하는 것을 특징으로 하는 차량의 댐퍼속도 도출 시스템. - 청구항 7에 있어서,
연산모듈에서 각 코너의 서스펜션힘 방정식은 하기와 같은 것을 특징으로 하는 차량의 댐퍼속도 도출 시스템.
Fz_sus_FL:전방 좌륜의 서스펜션힘[N] Fz_sus_FR:전방 우륜의 서스펜션힘[N]
Fz_sus_RL:후방 좌륜의 서스펜션힘[N] Fz_sus_RR:후방 우륜의 서스펜션힘[N]
kFL, kFR, kRL, kRR:각 코너의 스프링 강성[N/m]
bFL, bFR, bRL, bRR:각 코너의 댐핑계수[Ns/m]
:댐퍼속도 - 청구항 8에 있어서,
연산모듈은 타이어수직력과 서스펜션힘을 이용하여 하기의 식을 통해 댐퍼속도를 도출하는 것을 특징으로 하는 차량의 댐퍼속도 도출 시스템.
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KR1020180158963A KR102614161B1 (ko) | 2018-12-11 | 2018-12-11 | 차량의 댐퍼속도 도출 시스템 |
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KR1020180158963A KR102614161B1 (ko) | 2018-12-11 | 2018-12-11 | 차량의 댐퍼속도 도출 시스템 |
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KR102614161B1 true KR102614161B1 (ko) | 2023-12-13 |
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Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2000289424A (ja) * | 1999-04-06 | 2000-10-17 | Toyota Motor Corp | 車両の運動状態量推定装置 |
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JPH08282235A (ja) * | 1995-04-10 | 1996-10-29 | Hino Motors Ltd | ショックアブソーバの減衰力制御装置 |
US8322728B2 (en) * | 2007-09-28 | 2012-12-04 | Hitachi, Ltd. | Suspension control apparatus |
KR20090094509A (ko) | 2008-03-03 | 2009-09-08 | 주식회사 만도 | 전자 제어식 가변 댐퍼의 감쇠력 보상 시스템 및 방법 |
KR102262138B1 (ko) * | 2017-01-09 | 2021-06-10 | 현대자동차주식회사 | 차량의 포트홀 인식 시스템 |
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JP2000289424A (ja) * | 1999-04-06 | 2000-10-17 | Toyota Motor Corp | 車両の運動状態量推定装置 |
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