US 12,435,548 B2
Door handle emergency extension system for vehicle and control method thereof
Dae Chang Jung, Yongin-Si (KR); Seok Hoon Ko, Yongin-si (KR); and Seok Min Lee, Yongin-si (KR)
Assigned to HYUNDAI MOBIS CO., LTD., Seoul (KR)
Filed by HYUNDAI MOBIS CO., LTD., Seoul (KR)
Filed on Jul. 6, 2023, as Appl. No. 18/347,706.
Claims priority of application No. 10-2022-0083845 (KR), filed on Jul. 7, 2022.
Prior Publication US 2024/0011334 A1, Jan. 11, 2024
Int. Cl. E05B 77/12 (2014.01); E05B 5/00 (2006.01); E05B 5/02 (2006.01); E05B 81/56 (2014.01); E05B 81/64 (2014.01); E05B 83/36 (2014.01); E05B 85/10 (2014.01)
CPC E05B 77/12 (2013.01) [E05B 5/003 (2013.01); E05B 5/006 (2013.01); E05B 81/56 (2013.01); E05B 81/64 (2013.01); E05B 83/36 (2013.01); E05B 85/103 (2013.01)] 10 Claims
OG exemplary drawing
 
1. An emergency vehicle door handle extension system of a vehicle, the vehicle comprising (1) a door locking mechanism configured to lock a door of the vehicle, (2) a door handle configured to, when extended outwardly from the door, facilitate opening of the door, and (3) a vehicle power supply device configured to power the vehicle and the emergency vehicle door handle extension system, the emergency vehicle door handle extension system comprising:
a first energy-amplifying actuator configured to release the door locking mechanism;
a second energy-amplifying actuator configured to extend door handle outwardly from the door,
a controller configured to drive the first and second energy-amplifying actuators to facilitate opening of the door when the vehicle stops moving and the door handle is not extended outwardly; and
an emergency power supply device configured to supply power to the controller independently of the vehicle power supply device of the vehicle,
wherein the controller is connected to the vehicle power supply device and configured to:
operate with power from the vehicle power supply device when the power from the vehicle power supply device is available; and
operate with the power from the emergency power supply device when the power from the vehicle power supply device is not available, and
wherein the controller is further configured to:
in response to detecting an abnormality in the vehicle power supply device, set an expected stopping time of the vehicle based on a current speed of the vehicle;
in response to the power from the vehicle power supply device being unavailable at a time point after the expected stopping time has elapsed, determine whether the vehicle has stopped moving; and
in response to determining that the vehicle has stopped moving, drive the first and second energy-amplifying actuators.