Method for reducing false activations in reverse collision avoidance systems
First Claim
1. A reverse collision avoidance system for a vehicle comprising:
- at least one sensor mounted to the vehicle to detect objects proximate to a path of the vehicle;
a controller including instructions for;
analyzing data from the sensors to determine a current feature vector based upon data from the at least one sensor;
storing the current feature vector and associated object configuration for the environment in non-volatile memory for the collision avoidance system;
comparing the current feature vector with previously stored feature vectors; and
selecting an object configuration representing the environment surrounding the vehicle based on the comparison of the current feature vectors with previously stored feature vectors, wherein the probability that the detected object is an obstacle is decreased when the current feature vector is matched to a previous feature vector and the detected object was previously identified as not an obstacle.
2 Assignments
0 Petitions
Accused Products
Abstract
A collision avoidance system for a vehicle is disclosed that includes at least one sensor mounted to a vehicle to measure the vehicle'"'"'s environment in the reverse driving direction, a controller which creates a feature vector based on relationships among data provided by at least one sensor, and a non-volatile memory which stores feature vectors and related object configurations for a number of different environments. The system utilizes a comparison between the current feature vector and previously stored feature vectors to match the current environment with a previously observed environment, and then loads a previously stored object configuration which can improve collision detection performance to reduce the number of unnecessary system interventions.
10 Citations
15 Claims
-
1. A reverse collision avoidance system for a vehicle comprising:
-
at least one sensor mounted to the vehicle to detect objects proximate to a path of the vehicle; a controller including instructions for; analyzing data from the sensors to determine a current feature vector based upon data from the at least one sensor; storing the current feature vector and associated object configuration for the environment in non-volatile memory for the collision avoidance system; comparing the current feature vector with previously stored feature vectors; and selecting an object configuration representing the environment surrounding the vehicle based on the comparison of the current feature vectors with previously stored feature vectors, wherein the probability that the detected object is an obstacle is decreased when the current feature vector is matched to a previous feature vector and the detected object was previously identified as not an obstacle. - View Dependent Claims (2, 3, 5, 6, 7)
-
-
4. A reverse collision avoidance system for a vehicle comprising:
-
at least one sensor mounted to the vehicle to detect objects proximate to a path of the vehicle; a controller including instructions for; analyzing data from the sensors to determine a current feature vector based upon data from the at least on sensor; storing the current feature vector and associated object configuration for the environment in non-volatile memory for the collision avoidance system; comparing the current feature vector with previously stored feature vectors; and selecting an object configuration representing the environment surrounding the vehicle based on the comparison of the current feature vectors with previously stored feature vectors, wherein when a previous feature vector is determined to be a match with a current feature vector, a relevance value for the previous feature vector is increased.
-
-
8. A collision avoidance system for a vehicle comprising:
-
at least one sensor mounted to the vehicle to view a vehicle path for the vehicle; a controller which analyzes data from the sensors to determine a current feature vector based upon relationships among data detected by the at least one sensor; and a non-volatile memory which stores the current feature vector and associated object configuration in the collision avoidance system, wherein a probability that an object is an obstacle within the vehicle path is modified based upon a comparison between the current feature vector and a previous feature vector and an object configuration that corresponds with the previous feature vector, wherein the probability that the object is an obstacle to be avoided is decreased when the current feature vector is matched to a previous feature vector and the object was previously identified as not an obstacle, and wherein the controller is configured to select an object configuration representing the environment surrounding the vehicle based on the comparison of the current feature vectors with previously stored feature vectors, wherein the probability that the detected object is an obstacle is decreased when the current feature vector is matched to a previous feature vector and the detected object was previously identified as not an obstacle. - View Dependent Claims (9, 10, 11)
-
-
12. A collision avoidance system for a vehicle comprising:
-
at least one sensor mounted to the vehicle to view a vehicle path for the vehicle; a controller which analyzes data from the sensors to determine a current feature vector based upon relationships among data detected by the at least one sensor; and a non-volatile memory which stores the current feature vector and associated object configuration in the collision avoidance system, wherein a probability that an object is an obstacle within the vehicle path is modified based upon a comparison between the current feature vector and a previous feature vector and an object configuration that corresponds with the previous feature vector, wherein when a previous feature vector is determined to be a match with a current feature vector, a relevance value for the previous feature vector is increased, and wherein the controller is configured to select an object configuration representing the environment surrounding the vehicle based on the comparison of the current feature vectors with previously stored feature vectors, wherein the probability that the detected object is an obstacle is decreased when the current feature vector is matched to a previous feature vector and the detected object was previously identified as not an obstacle.
-
-
13. A method of avoiding a collision while operating a vehicle in reverse comprising:
-
detecting a plurality of objects proximate to a vehicle with at least one sensor, when the vehicle is placed in a reverse drive gear; analyzing data from the sensors with a controller for a collision avoidance system to determine a current feature vector based upon relationships among data from the at least one sensor; storing the current feature vector in non-volatile memory for the collision avoidance system; selecting an object configuration representing the environment surrounding the vehicle based on the comparison of the current feature vector with previously stored feature vectors, comparing the current feature vector to previous feature vectors stored in the memory to determine if the current feature vector matches any of the previous feature vectors; modifying the probability that an object is an obstacle based upon a match between the current feature vector and a previous feature vector, including decreasing the probability that the object is an obstacle when the current feature vector is matched to a previous feature vector and the object was previously identified as not an obstacle; and providing at least one vehicle collision avoidance action when the probability that the object is determined to be an obstacle exceeds a predetermined threshold. - View Dependent Claims (14, 15)
-
Specification