Determination of an expected speed level

Details Determination of an expected speed level Determination of an expected speed level

2011-01-11

2011-01-11

Tran, Khoi (Department: 3664)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

Traffic analysis or control of surface vehicle

C701S119000

Reexamination Certificate

active

07869934

ABSTRACT:
A method provides traffic condition data in the context of a traffic condition recognition by a motor vehicle, in particular traffic condition data for detecting the position of traffic, preferably for detecting traffic jams. In a first step the type of road along which the vehicle is traveling is determined by use of a position recognition device and a digital road map. In a second step, the category of road along which the vehicle is traveling is determined by use of the position recognition device and the digital road map. A third step utilizes assignments, in particular a table, which assigns at least one lower speed threshold, one upper speed threshold and preferably also a normal speed to both the relevant road type and the relevant road category of the road along which the vehicle is traveling. Finally, in a fourth step, at least the lower speed threshold and the upper speed threshold are used to determine the traffic condition.

REFERENCES:
patent: 2004/0039516 (2004-02-01), Willembrock
patent: 100 63 588 (2001-07-01), None
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patent: 1 262 934 (2002-12-01), None
patent: WO 02/07125 (2002-01-01), None
Machine translation of EP1262934 from EPO, 4 pages.
International Search Report dated Mar. 22, 2005.

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