US 12,304,416 B2
Airbag apparatus for vehicle
Dong Young Kim, Hwaseong-Si (KR); Seok Min Lee, Seoul (KR); Ga Ram Jeong, Yongin-Si (KR); and Dong Joon Lee, Yongin-Si (KR)
Assigned to HYUNDAI MOBIS CO., LTD., Seoul (KR)
Filed by HYUNDAI MOBIS CO., LTD., Seoul (KR)
Filed on Jul. 23, 2024, as Appl. No. 18/780,627.
Application 18/780,627 is a division of application No. 18/348,491, filed on Jul. 7, 2023, granted, now 12,115,929.
Claims priority of application No. 10-2022-0169055 (KR), filed on Dec. 6, 2022.
Prior Publication US 2024/0375605 A1, Nov. 14, 2024
Int. Cl. B60R 21/2338 (2011.01); B60R 21/0136 (2006.01); B60R 21/015 (2006.01); B60R 21/233 (2006.01); B60R 21/237 (2006.01); B60R 21/239 (2006.01); B60R 21/264 (2006.01); B60R 21/00 (2006.01)
CPC B60R 21/2338 (2013.01) [B60R 21/0136 (2013.01); B60R 21/01554 (2014.10); B60R 21/233 (2013.01); B60R 21/237 (2013.01); B60R 21/239 (2013.01); B60R 21/264 (2013.01); B60R 2021/0048 (2013.01); B60R 2021/23308 (2013.01); B60R 2021/23382 (2013.01); B60R 2021/23388 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A vehicle airbag device comprising:
a seatback inclination sensor to detect a seatback inclination of a passenger seat;
an airbag cushion including a main cushion deployed toward a passenger in the passenger seat by receiving airbag gas generated by an inflator;
an auxiliary cushion deployed by receiving airbag gas through the main cushion;
a tether connected to a portion of the auxiliary cushion such that the auxiliary cushion is prevented from fully inflating when constrained by the tether; and
a tether release device fixed to an airbag housing and activated by an electrical signal from the seatback inclination sensor, wherein the tether release device is activated, and the tether is released, when the seatback inclination of the passenger seat exceeds a threshold angle with respect to a 90-degree upright position;
wherein the auxiliary cushion is fully inflated by the inflator with release of the tether when the seatback inclination sensor indicates the passenger seat exceeds the threshold angle such that a deployed shape of the auxiliary cushion is determined by whether the passenger seat exceeds the threshold angle.