US 12,447,959 B2
Driver assistance apparatus for vehicle
Harunobu Horiguchi, Tokyo (JP)
Assigned to SUBARU CORPORATION, Tokyo (JP)
Filed by SUBARU CORPORATION, Tokyo (JP)
Filed on Mar. 12, 2024, as Appl. No. 18/602,815.
Claims priority of application No. 2023-052108 (JP), filed on Mar. 28, 2023.
Prior Publication US 2024/0326801 A1, Oct. 3, 2024
Int. Cl. B60W 30/14 (2006.01); B60W 10/20 (2006.01)
CPC B60W 30/143 (2013.01) [B60W 10/20 (2013.01); B60W 2552/40 (2020.02); B60W 2720/14 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A driver assistance apparatus for a vehicle, the driver assistance apparatus comprising:
a determiner configured to determine whether the vehicle is slipping in vehicle speed control, the vehicle speed control involving acceleration or deceleration of the vehicle;
an estimator configured to estimate a road surface frictional coefficient at a location where the vehicle starts slipping as a first road surface frictional coefficient;
a detector configured to detect a high frictional coefficient area that has a second road surface frictional coefficient higher than the first road surface frictional coefficient and is located in front of the vehicle, and
a deceleration rate setter configured to set, in the vehicle speed control involving the deceleration, a target deceleration rate to be used when the vehicle travels in the high frictional coefficient area to a higher value than the target deceleration rate set for the first road surface frictional coefficient.