Lane deviation alarm system
US7091838B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 2, 2004 |
| Grant date | Aug 15, 2006 |
| Priority date | — |
| Expiry date | Apr 9, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T2201/089
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.