US 11,919,351 B2
Apparatus and method for controlling vehicle height
Jae Hyung Park, Seoul (KR); Woo Sung Lee, Seoul (KR); and Eun Woo Na, Suwon-si (KR)
Assigned to HYUNDAI MOTOR COMPANY, Seoul (KR); and KIA MOTORS CORPORATION, Seoul (KR)
Filed by HYUNDAI MOTOR COMPANY, Seoul (KR); and KIA MOTORS CORPORATION, Seoul (KR)
Filed on Sep. 11, 2020, as Appl. No. 17/018,218.
Claims priority of application No. 10-2020-0073108 (KR), filed on Jun. 16, 2020.
Prior Publication US 2021/0387496 A1, Dec. 16, 2021
Int. Cl. B60G 17/0165 (2006.01)
CPC B60G 17/0165 (2013.01) [B60G 2400/252 (2013.01); B60G 2400/50 (2013.01); B60G 2400/823 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A vehicle height control apparatus comprising:
an information acquisition device configured to acquire pressure data on a pressure inside an air tank storing compressed air and obstacle data on an obstacle in front of a vehicle; and
a controller configured to calculate a target vehicle height based on the obstacle data, to calculate a required forward-moving distance required for controlling a vehicle height to reach the target vehicle height based on the pressure of the compressed air inside the air tank, and to determine a vehicle height control timing and control the vehicle height at the vehicle height control timing,
wherein the obstacle data includes a height of the obstacle and a distance from the vehicle to the obstacle, and
wherein the controller is further configured to set a required time to reach the target vehicle height based on the pressure of the compressed air, to calculate the required forward-moving distance using the required time and a current vehicle speed of the vehicle, to calculate a difference value between the distance from the vehicle to the obstacle and the required forward-moving distance, and to determine a time point at which the difference value is less than or equal to a threshold distance as the vehicle height control timing.