Apparatus and method for generating warning in vehicle

• US 9,959,762 B1
• Filed: 08/18/2017
• Issued: 05/01/2018
• Est. Priority Date: 02/24/2017
• Status: Active Grant

• Current Assignee: Hyundai Motor Company (Hyundai Motor Group), Kia Motors Corporation (Kia Corp.)
• Original Assignee: Hyundai Motor Company (Hyundai Motor Group), Kia Motors Corporation (Kia Corp.)
• Inventors: Kim, Eungseo, Kim, Junghyun, Lee, Sangmin, Lee, Taeyoung, Sung, Donghyun, Kwon, Yongseok
• Primary Examiner(s): TRIEU, VAN THANH
• Application Number:
  US15/680,818
• Time in Patent Office: 256 Days
• CPC Class Codes: B60R 21/013 including means for detecting collisions, impending collisions or roll-over
• CPC Class Codes: B60R 21/0134 responsive to imminent contact with an obstacle , e.g. using radar systems
• CPC Class Codes: B60W 2520/10 Longitudinal speed
• CPC Class Codes: B60W 2554/801 Lateral distance
• CPC Class Codes: B60W 2554/804 Relative longitudinal speed
• CPC Class Codes: B60W 50/14 Means for informing the driver, warning the driver or prompting a driver intervention
• CPC Class Codes: G06V 20/58 Recognition of moving objects or obstacles, e.g. vehicles or pedestrians; Recognition of traffic objects, e.g. traffic signs, traffic lights or roads
• CPC Class Codes: G08G 1/16 Anti-collision systems road vehicle drive control systems for predicting or avoiding probable or impending collision otherwise than by control of a particular sub-unit B60W30/08
• CPC Class Codes: G08G 1/161 Decentralised systems, e.g. inter-vehicle communication
• CPC Class Codes: G08G 1/164 Centralised systems, e.g. external to vehicles
• CPC Class Codes: G08G 1/166 for active traffic, e.g. moving vehicles, pedestrians, bikes

Abstract

An apparatus and a method for warning in a vehicle generates a warning based on a distance in order to avoid a problem that may occur when a collision warning is generated based on only a time required for a collision. The method of generating a warning in a vehicle includes: obtaining a distance and a relative speed of the vehicle to a target vehicle ahead; obtaining a time required for a collision with the target vehicle from the distance and the relative speed; and generating a warning when at least one of a first condition in which the time required for the collision is equal to or less than a predetermined warning generation time and a second condition in which the distance is equal to or less than a predetermined warning generation distance is satisfied.

Claims

1. A method of generating a warning in a vehicle, the method comprising:

obtaining a distance and a relative speed of the vehicle to a target vehicle ahead;

obtaining a time required for a collision with the target vehicle from the distance and the relative speed; and

generating a warning if at least one of a first condition, in which the time required for the collision is equal to or less than a predetermined warning generation time, and a second condition, in which the distance is equal to or less than a predetermined warning generation distance is satisfied.

2. The method according to claim 1, wherein generating a warning according to the second condition comprises generating the warning every time the target vehicle is within a predetermined ratio of a previous warning generation distance.

3. The method according to claim 2, wherein the warning is generated for a predetermined time every time the target vehicle is within the predetermined ratio of the previous warning generation distance.

4. The method according to claim 2, wherein the predetermined time is within two seconds.

5. The method according to claim 2, wherein the predetermined ratio is within 60%.

6. An apparatus for generating a warning in a vehicle, the apparatus comprising:

a sensor for detecting a presence of a target vehicle ahead; and

a controller for obtaining a distance and a relative speed of the vehicle to the target vehicle, obtaining a time required for a collision with the target vehicle from the distance and the relative speed, generating a warning if at least one of a first condition, in which the time required for the collision is equal to or less than a predetermined warning generation time, and a second condition, in which the distance is equal to or less than a predetermined warning generation distance is satisfied.

7. The apparatus according to claim 6, wherein the controller is configured to generate the warning every time the target vehicle is within a predetermined ratio of a previous warning generation distance when generating a warning according to the second condition.

8. The apparatus according to claim 7, wherein the controller is configured to generate the warning for a predetermined time every time the target vehicle is within the predetermined ratio of the previous warning generation distance.

9. The apparatus according to claim 7, wherein the predetermined time is within two seconds.

10. The method according to claim 7, wherein the predetermined ratio is within 60%.

11. A method of generating a warning in a vehicle, the method comprising:

obtaining a distance to a target vehicle ahead; and

generating a warning when the distance is equal to or less than a predetermined warning generation distance,

wherein the warning is generated every time the target vehicle is within a predetermined ratio of a previous warning generation distance.

12. The method according to claim 11, wherein the warning is generated for a predetermined time every time the target vehicle is within the predetermined ratio of the previous warning generation distance.

13. A method of generating a warning in a vehicle, the method comprising:

obtaining a distance and a relative speed of the vehicle to a target vehicle ahead;

obtaining a time required for a collision with the target vehicle from the distance and the relative speed; and

generating a warning if at least one of a first condition, in which the time required for the collision is equal to or less than a predetermined warning generation time, and a second condition, in which the distance is equal to or less than a predetermined warning generation distance is satisfied,

wherein the warning is generated every time the target vehicle is within a predetermined ratio of a previous warning generation distance.

14. The method according to claim 13, wherein the warning is generated for a predetermined time the target vehicle is within the predetermined ratio of the previous warning generation distance.