US 12,311,904 B2
Braking control system and method for autonomous vehicle
Myung Ki Yeom, Whasung-Si (KR); and In Su Kim, Whasung-Si (KR)
Assigned to Hyundai Motor Company, Seoul (KR); and Kia Corporation, Seoul (KR)
Filed by Hyundai Motor Company, Seoul (KR); and Kia Corporation, Seoul (KR)
Filed on Oct. 14, 2022, as Appl. No. 17/966,018.
Claims priority of application No. 10-2021-0179263 (KR), filed on Dec. 15, 2021.
Prior Publication US 2023/0182696 A1, Jun. 15, 2023
Int. Cl. B60T 8/88 (2006.01); B60Q 9/00 (2006.01); B60T 7/22 (2006.01)
CPC B60T 7/22 (2013.01) [B60Q 9/008 (2013.01); B60T 8/885 (2013.01); B60T 2210/32 (2013.01); B60T 2250/04 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A braking control system for autonomous vehicles, the braking control system comprising:
an autonomous traveling detector mounted on each of the autonomous vehicles to monitor surrounding vehicles required for autonomous traveling;
an autonomous traveling controller mounted on each of the autonomous vehicles, and configured to determine absolute information including an absolute location of the autonomous vehicles based on monitoring information of the autonomous traveling detector, and configured to transmit the absolute information so determined to a cloud; and
the cloud configured to determine whether the autonomous traveling detector of each autonomous vehicle is erroneous and failed using an average value of the absolute locations of the autonomous vehicles, and then transmit a failure signal or an error correction request signal of the autonomous traveling detector together with a braking request signal to the autonomous traveling controller of the autonomous vehicles which have failed,
wherein the autonomous traveling controller is configured to determine absolute information including absolute locations and absolute speeds of the surrounding vehicles using a rotation matrix based on relative information including relative locations and relative speeds of the surrounding vehicles and absolute information including an absolute location and an absolute speed of one's own vehicle, and then to transmit the determined absolute information on the surrounding vehicles together with the relative information on the surrounding vehicles to the cloud, and
wherein the cloud is configured to align the absolute locations transmitted by the autonomous traveling controller of the autonomous vehicles by distance relative to the average value of the absolute locations, and then to conclude that an autonomous traveling detector of any of the autonomous vehicles having transmitted an absolute location deviating from the average value by a reference distance or more than the reference distance is erroneous or failed.