Lane deviation alarm system

Details Lane deviation alarm system Lane deviation alarm system

2006-08-15

2006-08-15

Hofsass, Jeffery (Department: 2612)

Communications: electrical

Land vehicle alarms or indicators

Of collision or contact with external object

C340S435000, C340S901000, C340S904000, C340S937000, C340S938000, C701S001000

Reexamination Certificate

active

07091838

ABSTRACT:
A lane deviation alarm system is comprised of a forward-observed-point calculating section that calculates a forward observed point by multiplying a vehicle speed of a host vehicle and an anticipated deviation time; a forward-observed-point lateral-displacement calculating section that calculates a lateral displacement at the forward-observed-point, on the basis of a yaw angle and the forward-observed-point; a lane deviation tendency determining section that determines whether the host vehicle is in a lane deviation tendency, on the basis of the forward-observed-point lateral-displacement; and a criteria changing section that changes a criteria for determining a lane deviation tendency of the host vehicle, on the basis of a detecting condition of the lane defining line.

REFERENCES:
patent: 6489887 (2002-12-01), Satoh et al.
patent: 6732021 (2004-05-01), Matsumoto et al.
patent: 6748302 (2004-06-01), Kawazoe
patent: 6894606 (2005-05-01), Forbes et al.
patent: 6973380 (2005-12-01), Tange et al.
patent: 8-5388 (1996-01-01), None
patent: 2002-193055 (2002-07-01), None
Masato Abe, “Vehicle Dynamics and Control”, (third edition) May 31, 1996, pp. 60-70.

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