US 12,319,175 B2
System and method for evaluating pressure sensation of vehicle seat
Baek Hee Lee, Gyeonggi-do (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 May 31, 2022, as Appl. No. 17/828,542.
Claims priority of application No. 10-2021-0088345 (KR), filed on Jul. 6, 2021.
Prior Publication US 2023/0010702 A1, Jan. 12, 2023
Int. Cl. B60N 2/02 (2006.01); B60N 2/00 (2006.01)
CPC B60N 2/0284 (2013.01) [B60N 2/0021 (2023.08); B60N 2/0033 (2023.08); B60N 2/0224 (2013.01); B60N 2/0273 (2023.08); B60N 2/0268 (2023.08); B60N 2210/40 (2023.08); B60N 2230/30 (2023.08)] 11 Claims
OG exemplary drawing
 
1. A system for evaluating pressure sensation of a vehicle seat, comprising:
a seat cushion having a bolster formed at each of both side ends thereof;
a shield cover mounted at each of both side surfaces of the seat cushion;
a plurality of body pressure sensors installed in a designated arrangement within the bolster; and
a seat controller connected to the body pressure sensors through signal transmission lines, wherein the seat controller includes:
a body pressure analysis and pressure sensation area determination unit and configured to determine an area in which there is a pressure sensation on a lower body of a passenger due to the bolster or the shield cover by analyzing magnitudes of a body pressure measured by the body pressure sensors and a distribution chart thereof;
a pressure sensation type determination unit and configured to determine whether the pressure sensation on the lower body of the passenger is caused by the bolster or the shield cover; and
a seat position control unit and configured to adjust the seat cushion to a position to release the pressure sensation;
wherein the pressure sensation type determination unit is configured to:
determine that the pressure sensation on the lower body of the passenger is caused by the shield cover when there is a vertical valley indicating the pressure sensation on the lower body of the passenger due to an edge of an upper end of the shield cover in the distribution chart of the body pressure; and
determine that the pressure sensation on the lower body of the passenger is caused by the bolster when there is no vertical valley in the distribution chart of the body pressure.