KR20150037585A - 선행 차량 선택 장치 - Google Patents
선행 차량 선택 장치 Download PDFInfo
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- KR20150037585A KR20150037585A KR20140128876A KR20140128876A KR20150037585A KR 20150037585 A KR20150037585 A KR 20150037585A KR 20140128876 A KR20140128876 A KR 20140128876A KR 20140128876 A KR20140128876 A KR 20140128876A KR 20150037585 A KR20150037585 A KR 20150037585A
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- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
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- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
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- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
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- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
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- G—PHYSICS
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- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
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- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
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- G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
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Abstract
Description
도 1은 실시 예에 따른 선행 차량 선택 장치에 적용할 수 있는 차량간 제어기를 포함하는 차량간 제어 시스템의 전체 구성을 도시한 블럭도,
도 2는 도 1에 도시된 차량간 제어기에 의해 실행되는 선행 차량 선택 프로세스의 흐름도,
도 3은 도 2에 도시된 단계 S160에서 차량간 시간으로부터 필터 상수를 계산하는데 이용되는 필터 상수 테이블의 상세를 도시한 그래프,
도 4는 도 1에 도시된 차량간 제어기에 의해 실행되는 필터 프로세스의 전후의 자기 차량 차선 확률에 있어서의 변경을 도시한 그래프,
도 5는 실시 예에 있어서 차량간 시간에 의거하여 변경되는 필터 상수에 의해 달성되는 효과의 예시적인 도면,
도 6은 도 1에 도시된 차량간 제어기의 기능 구성을 도시한 블럭도이다.
Claims (10)
- 선행 차량 선택 장치로서,
자기 차량이 주행중인 주행 도로의 곡률을 추정하는 곡률 추정 수단과;
자기 차량의 전방에 있는 객체를 검출하고, 전방의 각 객체에 대하여 자기 차량에 대한 상대적 위치를 판정하는 객체 위치 검출 수단과;
곡률 추정 수단에 의해 추정된 추정 곡률과 객체 위치 검출 수단에 의해 판정된 상대적 위치에 기초하여 전방의 각 객체에 대하여 자기 차량 차선 확률 순시값 - 자기 차량 차선 확률 순시값은 전방의 객체가 자기 차량과 동일한 차량 차선에 존재할 확률의 순시값임 - 을 반복적으로 판정하는 순시 확률 계산 수단과;
순시 확률 계산 수단에 의해 계산된 자기 차량 차선 확률 순시값에 대해 필터 계산을 수행함에 의해 자기 차량 차선 확률을 판정하는 필터 계산 수단과;
필터 계산 수단에 의해 판정된 자기 차량 차선 확률에 기초하여 선행 차량을 선택하는 선행 차량 선택 수단과;
전방의 각 객체에 대하여 차량간 시간 - 차량간 시간은 자기 차량이 전방의 객체의 검출 위치에 도달하기 위해 요구되는 시간을 나타냄 - 을 계산하는 차량간 시간 계산 수단과;
차량간 시간 계산 수단에 의해 판정된 차량간 시간에 기초하여, 차량간 시간이 감소할 수록 자기 차량 차선 순시값의 영향이 증가하도록 필터 계산의 특성을 변경하는 필터 특성 설정 수단을 포함하는
선행 차량 선택 장치.
- 제 1 항에 있어서,
상기 필터 계산 수단은,
가중치를 이용하여, (ⅰ) 자기 차량 차선 확률 순시값과, (ⅱ) 필터 계산 수단에 의해 이전 프로세싱 사이클에서 판정된 자기 차량 차선 확률의 이전값의 가중된 평균을 계산하기 위한 필터 계산을 실행함에 의해 현재 프로세싱 사이클에서의 자기 차량 차선 확률의 현재값을 판정하고, 차량간 시간에 기초하여 가중 평균을 계산하기 위한 가중치를 변경하는
선행 차량 선택 장치.
- 제 3 항에 있어서,
상기 필터 상수는, 차량간 시간이 근거리에 대해 사전 결정된 제 1 임계치 미만이면, 상한값으로 설정되고,
상기 필터 상수는 상기 차량간 시간이 원거리에 대해 사전 결정된 제 2 임계치 초과이면, 하한값으로 설정되며,
상기 필터 상수는, 상기 차량간 시간이 제 1 임계치 이상이고 제 2 임계치 이하이면, 차량간 시간의 증가에 비례하여 상한값에서 하한값으로 감소하도록 설정되는
선행 차량 선택 장치.
- 선행 차량 선택 방법으로서,
자기 차량이 주행중인 주행 도로의 곡률을 추정하는 단계;
자기 차량의 전방에 있는 객체를 검출하고, 전방의 각 객체에 대하여 자기 차량에 대한 상대적 위치를 판정하는 단계;
추정된 추정 곡률과 판정된 상대적 위치에 기초하여 전방의 각 객체에 대하여 자기 차량 차선 확률 순시값 - 자기 차량 차선 확률 순시값은 전방의 객체가 자기 차량과 동일한 차량 차선에 존재할 확률의 순시값임 - 을 반복적으로 판정하는 단계;
계산된 자기 차량 차선 확률 순시값에 대해 필터 계산을 수행함에 의해 자기 차량 차선 확률을 판정하는 단계;
판정된 자기 차량 차선 확률에 기초하여 선행 차량을 선택하는 단계;
전방의 각 객체에 대하여 차량간 시간 - 차량간 시간은 자기 차량이 전방의 객체의 검출 위치에 도달하기 위해 요구되는 시간을 나타냄 - 을 계산하는 단계;
판정된 차량간 시간에 기초하여, 차량간 시간이 감소할수록 자기 차량 차선 순시값의 영향이 증가하도록 필터 계산의 특성을 변경하는 단계를 포함하는
선행 차량 선택 방법.
- 제 6 항에 있어서,
현재 프로세싱 사이클에서의 자기 차량 차선 확률의 현재값은
가중치를 이용하여, (ⅰ) 자기 차량 차선 확률 순시값과, (ⅱ) 필터 계산 수단에 의해 이전 프로세싱 사이클에서 판정된 자기 차량 차선 확률의 이전값의 가중된 평균을 계산하기 위한 필터 계산을 실행함에 의해 판정되고,
가중 평균을 계산하기 위한 가중치는 차량간 시간에 기초하여 변경되는
선행 차량 선택 방법.
- 제 8 항에 있어서,
상기 필터 상수는, 차량간 시간이 근거리에 대해 사전 결정된 제 1 임계치 미만이면, 상한값으로 설정되고,
상기 필터 상수는 상기 차량간 시간이 원거리에 대해 사전 결정된 제 2 임계치 초과이면, 하한값으로 설정되며,
상기 필터 상수는, 상기 차량간 시간이 제 1 임계치 이상이고 제 2 임계치 이하이면, 차량간 시간의 증가에 비례하여 상한값에서 하한값으로 감소하도록 설정되는
선행 차량 선택 방법.
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| JP6131813B2 (ja) * | 2013-10-03 | 2017-05-24 | 株式会社デンソー | 先行車選択装置 |
| JP6040945B2 (ja) | 2014-02-14 | 2016-12-07 | 株式会社デンソー | 先行車選択装置 |
| CN110007305B (zh) * | 2019-04-15 | 2021-01-29 | 北京行易道科技有限公司 | 车辆前方目标确定方法、装置、服务器及存储介质 |
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- 2013-09-30 JP JP2013204473A patent/JP2015067193A/ja active Pending
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- 2014-09-26 DE DE102014219624.8A patent/DE102014219624A1/de not_active Withdrawn
- 2014-09-26 KR KR1020140128876A patent/KR101659852B1/ko active Active
- 2014-09-29 US US14/499,831 patent/US9588222B2/en active Active
- 2014-09-30 CN CN201410521277.9A patent/CN104517464A/zh active Pending
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| JP2004217175A (ja) * | 2003-01-17 | 2004-08-05 | Toyota Motor Corp | 車間距離制御装置 |
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Also Published As
| Publication number | Publication date |
|---|---|
| KR101659852B1 (ko) | 2016-09-26 |
| CN104517464A (zh) | 2015-04-15 |
| JP2015067193A (ja) | 2015-04-13 |
| US9588222B2 (en) | 2017-03-07 |
| US20150094942A1 (en) | 2015-04-02 |
| DE102014219624A1 (de) | 2015-04-02 |
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