| US 7,509,214 B2 | ||
| Vehicle navigation with integrated curve warning | ||
| Philipp Harald Nagel, Seevetal (Germany) | ||
| Assigned to Harman Becker Automotive System GmbH, Karlsbad (Germany) | ||
| Filed on Nov. 18, 2005, as Appl. No. 11/283,341. | ||
| Claims priority of application No. 04027568 (EP), filed on Nov. 19, 2004. | ||
| Prior Publication US 2006/0287817 A1, Dec. 21, 2006 | ||
| Int. Cl. G01C 21/00 (2006.01) | ||
| U.S. Cl. 701—209 [701/207] | 32 Claims |
| 1. A navigation system for a vehicle, comprising:
a vehicle position sensor;
a vehicle velocity sensor coupled to the vehicle position sensor;
a curve warning device that determines a state parameter and generates a warning for the vehicle to traverse a roadway curvature
along a path of the vehicle if the state parameter exceeds a predetermined limit, the warning based on a plurality of clothoid
models and data received from the vehicle position sensor and the vehicle velocity sensor,
where the state parameter comprises vehicle data, and
the predetermined limit comprises a predetermined velocity or a predetermined centrifugal acceleration, and corresponds to
a value for passage along the entire roadway curvature.
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