False warning reduction using location data
First Claim
1. A method of reducing false collision warnings comprising the steps of:
- determining a presence of a target object within a path of a host vehicle with a sensor, the presence indicating conditions for a collision;
determining a present location of the host vehicle;
determining whether the target object is stored in a false alert database for the determined present location;
suppressing a warning when the target object and the location are stored in the false alert database;
when the warning is suppressed, determining a reaction by a host vehicle operator to the target object within a time period with a reaction sensing device;
when the host vehicle operator reacts within the time period, determining that the target object is not a false target object and removing the target object and the location from the false alert database, andproviding a warning when the target object is not stored in the false alert database.
1 Assignment
0 Petitions
Accused Products
Abstract
A collision warning system for a host vehicle includes a false warning reduction arrangement. A collision sensor senses a presence of a target object within a forward path of a vehicle and a navigation system senses the global position of the vehicle. The collision warning system receives the location information and the target object to provide a collision warning to a vehicle operator. To avoid false alerts, the collision warning system compares target object and location to target objects and locations stored in a false alert database. When the target object is provided in the database, a warning is delayed or suppressed. The collision warning system also senses driver reactions to a warning. When a warning results in no reaction by a vehicle operator, the warning is considered a false alert, and the target object and location are stored in the false alert database.
16 Citations
18 Claims
-
1. A method of reducing false collision warnings comprising the steps of:
-
determining a presence of a target object within a path of a host vehicle with a sensor, the presence indicating conditions for a collision; determining a present location of the host vehicle; determining whether the target object is stored in a false alert database for the determined present location; suppressing a warning when the target object and the location are stored in the false alert database; when the warning is suppressed, determining a reaction by a host vehicle operator to the target object within a time period with a reaction sensing device; when the host vehicle operator reacts within the time period, determining that the target object is not a false target object and removing the target object and the location from the false alert database, and providing a warning when the target object is not stored in the false alert database. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. A system for reducing false collision warnings comprising:
-
a forward collision sensor for sensing a presence of a target object within a forward path of a host vehicle; a navigation system for determining a present location of the host vehicle; a reaction sensing device for determining a reaction by a host vehicle operator; a forward collision warning system including a processor; and a false alert database in communication with the processor for storing target objects and locations of the target objects, wherein the processor receives the presence of the target object from the forward collision sensor and the present location of the host vehicle from the navigation system, and communicates with the false alert database to determine whether a stored target object at a stored location corresponding to the location of the sensed target object is provided in the false alert database, when the sensed target object is provided in the false alert database and the reaction sensing device determines a reaction by a host vehicle operation within a given time period, the processor determines that the sensed target object is not a false target object and removes the target object and the location from the false alert database. - View Dependent Claims (13, 14, 15, 16, 17, 18)
-
Specification