KR100779466B1 - 제동시 노면상태 판단방법 - Google Patents
제동시 노면상태 판단방법 Download PDFInfo
- Publication number
- KR100779466B1 KR100779466B1 KR1020020031025A KR20020031025A KR100779466B1 KR 100779466 B1 KR100779466 B1 KR 100779466B1 KR 1020020031025 A KR1020020031025 A KR 1020020031025A KR 20020031025 A KR20020031025 A KR 20020031025A KR 100779466 B1 KR100779466 B1 KR 100779466B1
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- KR
- South Korea
- Prior art keywords
- road surface
- threshold value
- wheel
- wheels
- split
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 238000000034 method Methods 0.000 claims abstract description 23
- 238000001514 detection method Methods 0.000 claims abstract description 5
- 238000004441 surface measurement Methods 0.000 abstract description 5
- 239000010426 asphalt Substances 0.000 description 1
- 230000004043 responsiveness Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/17—Using electrical or electronic regulation means to control braking
- B60T8/176—Brake regulation specially adapted to prevent excessive wheel slip during vehicle deceleration, e.g. ABS
- B60T8/1763—Brake regulation specially adapted to prevent excessive wheel slip during vehicle deceleration, e.g. ABS responsive to the coefficient of friction between the wheels and the ground surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T2210/00—Detection or estimation of road or environment conditions; Detection or estimation of road shapes
- B60T2210/10—Detection or estimation of road conditions
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Regulating Braking Force (AREA)
Abstract
Description
Claims (5)
- 제동시 노면 상태를 판단하는 방법에 있어서,전륜의 좌우측 중 어느 일측이 기준 슬립률을 벗어나는지를 판단하는 제 1 단계;상기 판단결과 상기 어느 일측이 기준 슬립률을 벗어났다고 판단되는 경우에는 그 때의 노면상태가 스플릿 상태인지를 판단하기 위해 각 차륜의 거동 검출용 정보를 연산하는 제 2 단계;상기 연산한 정보를 이용하여 전륜의 거동만을 보고 일차적으로 스플릿 노면인지 판단 시, 전륜에 대한 양 차륜의 슬립률차 값과 제1임계값 , 전륜에 대한 양 차륜의 휠속차 값과 제2임계값을 각각 비교 판단하고, 상기 판단결과 상기 슬립률차 값과 휠속차 값이 상기 각각의 소정 임계값을 벗어나는 경우에는 스플릿 노면이라고 판단하는 제3단계;상기 제 3 단계의 판단결과 스플릿 노면이 아니라고 판단되는 경우, 상기 제 2 단계에서 연산한 정보를 이용하여 전륜 및 후륜의 거동까지 살펴 재차적으로 스플릿 노면인지를 판단하는 제 4 단계를 포함하여 이루어지는 것을 특징으로 하는 제동시 노면상태 판단방법.
- 제 1 항에 있어서,제 2 단계에서 연산되는 각 차륜의 거동 검출용 정보는,전륜에 대한 양 차륜의 슬립률차와 휠속차 및 후륜에 대한 양 차륜의 슬립률차와 휠속차인 것을 특징으로 하는 제동시 노면상태 판단방법.
- 삭제
- 제 1 항에 있어서,상기 제 4 단계의 전륜 및 후륜의 거동까지 살펴 재차적으로 스플릿 노면인지를 판단하는 경우에는,전륜에 대한 양 차륜의 슬립률차 값과 제3임계값, 전륜에 대한 양 차륜의 휠속차 값과 제4임계값을 각각 비교 판단하고, 후륜에 대한 양 차륜의 슬립률차 값과 제5임계값, 후륜에 대한 양 차륜의 휠속차 값과 제6임계값을 각각 비교 판단하여, 상기 판단결과 상기 슬립률차 값과 휠속차 값이 상기 각각의 소정 임계값을 벗어나는 경우에는 스플릿 노면이라고 판단하고, 그렇지 않은 경우에는 균일 노면이라고 판단하는 것을 특징으로 하는 제동시 노면상태 판단방법.
- 제 4 항에 있어서,상기 제1임계값은 상기 제3임계값보다 크고, 상기 제3임계값은 상기 제5임계값보다 큰 것을 특징으로 하고, 상기 제2임계값은 상기 제4임계값보다 크고, 상기 제4임계값은 상기 제6임계값보다 큰 것을 특징으로 하는 제동시 노면상태 판단방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020020031025A KR100779466B1 (ko) | 2002-06-03 | 2002-06-03 | 제동시 노면상태 판단방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020020031025A KR100779466B1 (ko) | 2002-06-03 | 2002-06-03 | 제동시 노면상태 판단방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20030093458A KR20030093458A (ko) | 2003-12-11 |
KR100779466B1 true KR100779466B1 (ko) | 2007-11-26 |
Family
ID=32385629
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020020031025A Expired - Fee Related KR100779466B1 (ko) | 2002-06-03 | 2002-06-03 | 제동시 노면상태 판단방법 |
Country Status (1)
Country | Link |
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KR (1) | KR100779466B1 (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US12269476B2 (en) | 2023-06-23 | 2025-04-08 | National Institute of Meteorological Sciences | Mobile apparatus for observing road surface and method for controlling the same |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101296085B1 (ko) * | 2009-11-30 | 2013-08-19 | 주식회사 만도 | 노면 판단 방법 |
CN113085808A (zh) * | 2021-04-23 | 2021-07-09 | 精诚工科汽车系统有限公司 | 车辆脱困控制方法与装置、制动系统、存储介质 |
CN118850022B (zh) * | 2024-09-26 | 2025-03-28 | 中国第一汽车股份有限公司 | 制动防抱死控制方法、装置和车辆 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04183661A (ja) * | 1990-11-14 | 1992-06-30 | Tokico Ltd | トラクションコントロール装置 |
KR920019591A (ko) * | 1991-04-15 | 1992-11-19 | 와다 요시히로 | 차량의 슬립제어장치 |
JPH05125970A (ja) * | 1991-11-06 | 1993-05-21 | Mazda Motor Corp | 車両のスリツプ制御装置 |
JPH05187284A (ja) * | 1991-04-15 | 1993-07-27 | Mazda Motor Corp | 車両のトラクション制御装置 |
JPH0687419A (ja) * | 1992-09-04 | 1994-03-29 | Nissan Motor Co Ltd | 制動液圧制御装置 |
JPH0699762A (ja) * | 1992-09-17 | 1994-04-12 | Fuji Heavy Ind Ltd | 後輪差動制限装置の制御方法 |
-
2002
- 2002-06-03 KR KR1020020031025A patent/KR100779466B1/ko not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04183661A (ja) * | 1990-11-14 | 1992-06-30 | Tokico Ltd | トラクションコントロール装置 |
KR920019591A (ko) * | 1991-04-15 | 1992-11-19 | 와다 요시히로 | 차량의 슬립제어장치 |
JPH05187284A (ja) * | 1991-04-15 | 1993-07-27 | Mazda Motor Corp | 車両のトラクション制御装置 |
JPH05125970A (ja) * | 1991-11-06 | 1993-05-21 | Mazda Motor Corp | 車両のスリツプ制御装置 |
JPH0687419A (ja) * | 1992-09-04 | 1994-03-29 | Nissan Motor Co Ltd | 制動液圧制御装置 |
JPH0699762A (ja) * | 1992-09-17 | 1994-04-12 | Fuji Heavy Ind Ltd | 後輪差動制限装置の制御方法 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US12269476B2 (en) | 2023-06-23 | 2025-04-08 | National Institute of Meteorological Sciences | Mobile apparatus for observing road surface and method for controlling the same |
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KR20030093458A (ko) | 2003-12-11 |
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