05751211 is referenced by 206 patents and cites 20 patents.

As provided here, an obstacle warning system for a vehicle is capable of issuing an alarm accurately according to the curved state of a road. When the road is curved, the system sets the correction time counter on the basis of the following conditions: whether or not the curvature radius of the curved road is small; whether or not a guardrail is detected immediately ahead of the vehicle; whether or not an erroneously-recognized object, such as a set of guardrail reflectors exhibiting large relative acceleration is immediately ahead of the vehicle; and whether or not the number of obstacles recognized reaches a value indicating that the vehicle is approaching a curved section of the road. When a stationary object enters the field of view indicating that there is a possibility of a collision, the obstacle warning system corrects the warning distance in response to the value of the correction time counter, thus making it possible to avoid a false alarm during cornering.

Title
Obstacle warning system for a vehicle
Application Number
8/777196
Publication Number
5751211
Application Date
December 27, 1996
Publication Date
May 12, 1998
Inventor
Takao Nishimura
Nagoya
JP
Katsuhiko Hibino
Kariya
JP
Noriaki Shirai
Oobu
JP
Agent
Cushman Darby & Cushman IP Group of Pillsbury Madison & Sutro
Assignee
Denso Corporation
JP
IPC
B60Q 1/00
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