On-vehicle apparatus, preceding vehicle position determining apparatus, and preceding vehicle position determining method
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G08G-001/16
G01S-005/00
G01S-007/41
출원번호
US-0639744
(2011-03-29)
등록번호
US-8798907
(2014-08-05)
우선권정보
JP-2010-091714 (2010-04-12)
국제출원번호
PCT/IB2011/000661
(2011-03-29)
§371/§102 date
20121005
(20121005)
국제공개번호
WO2011/128739
(2011-10-20)
발명자
/ 주소
Shida, Mitsuhisa
출원인 / 주소
Toyota Jidosha Kabushiki Kaisha
대리인 / 주소
Oliff PLC
인용정보
피인용 횟수 :
9인용 특허 :
26
초록▼
An ECU acquires relative position information related to a relative position between a host vehicle and another vehicle (A, B, C) traveling ahead of the host vehicle, and error information related to an error in the relative position, detects the position of a preceding vehicle (A) traveling in fron
An ECU acquires relative position information related to a relative position between a host vehicle and another vehicle (A, B, C) traveling ahead of the host vehicle, and error information related to an error in the relative position, detects the position of a preceding vehicle (A) traveling in front of the host vehicle, identifies the position of the preceding vehicle (A) by comparing the relative position based on the acquired relative position information with the detected position, and if relative position information oh a plurality of other vehicles (A, B, C) is acquired, identifies the position of the preceding vehicle (A) by comparing the relative position based on the acquired relative position information with the detected position, by using a threshold that is varied in accordance with the error information.
대표청구항▼
1. An on-vehicle apparatus, comprising: an object sensor that detects a first position of a second vehicle preceding a host vehicle;an acquiring device that acquires a second position of the second vehicle by communication; anda controller that (i) compares a difference between the first position an
1. An on-vehicle apparatus, comprising: an object sensor that detects a first position of a second vehicle preceding a host vehicle;an acquiring device that acquires a second position of the second vehicle by communication; anda controller that (i) compares a difference between the first position and the second position with a threshold to recognize a positional relationship between the host vehicle and the second vehicle, (ii) changes the threshold on the basis of error information related to an error in the relative position between the host vehicle and the second vehicle, and (iii) lowers the threshold if it determines that a tolerance range of the relative position between the host vehicle and the second vehicle overlaps a tolerance range of a relative position between the host vehicle and at least a third vehicle preceding the host vehicle, each of the tolerance ranges indicating a range within which the respective vehicles preceding the host vehicle are likely to exist. 2. The on-vehicle apparatus according to claim 1, wherein: the on-vehicle apparatus is applied to adaptive cruise control;if the object sensor is abnormal, even if communication is normal, the adaptive cruise control based on a result of recognition of the positional relationship is continued; andif the object sensor is normal, and an abnormality in communication continues, the adaptive cruise control is stopped. 3. The on-vehicle apparatus according to claim 1, wherein: the object sensor is at least one of a millimeter-wave radar, a laser radar, a camera, an ultra wide band radar, and a sonar. 4. A preceding vehicle position determining apparatus comprising: a relative position information acquiring device that acquires relative position information related to a relative position between a host vehicle and a second vehicle that is traveling ahead of the host vehicle, and error information related to an error in the relative position, via communication;a preceding vehicle detecting device that detects a position of each of a plurality of vehicles, including the position of the second vehicle; anda preceding vehicle identifying device that (i) identifies the position of the second vehicle, by comparing the relative position based on the relative position information acquired by the relative position information acquiring device, with the position detected by the preceding vehicle position detecting device, by using a threshold varied in accordance with the error information, and (ii) lowers the threshold if it determines that a tolerance range of the relative position between the host vehicle and the second vehicle overlaps a tolerance range of a relative position between the host vehicle and any other vehicle in the plurality of vehicles, each of the tolerance ranges indicating a range within which the respective vehicles are likely to exist. 5. A method of identifying a preceding vehicle, comprising: acquiring relative position information related to a relative position between a host vehicle and second vehicle that is traveling ahead of the host vehicle, and error information related to an error in the relative position, via a communication device;detecting a position of each of a plurality of vehicles, including the position of the second vehicle;identifying the position of the second vehicle by using a processor to compare the relative position information with the detected position, and by using a threshold varied in accordance with the error information; andlowering the threshold if a tolerance range of the relative position between the host vehicle and the second vehicle overlaps a tolerance range of a relative position between the host vehicle and any other vehicle in the plurality of vehicles, each of the tolerance ranges indicating a range within which the respective vehicles are likely to exist.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (26)
Breed, David S.; Johnson, Wendell C.; DuVall, Wilbur E., Accident avoidance system.
Mudalige, Upali Priyantha; Tengler, Steven C., System and method for managing geographical maplet downloads for a vehicle to support stop sign violation assist and similar applications.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.