US 12,139,103 B2
Smart key remote controller and low power operating method of the same
Yong Hee Park, Yongin-si (KR)
Assigned to HYUNDAI MOBIS CO., LTD., Seoul (KR)
Filed by HYUNDAI MOBIS CO., LTD., Seoul (KR)
Filed on Mar. 2, 2022, as Appl. No. 17/653,247.
Claims priority of application No. 10-2021-0027678 (KR), filed on Mar. 2, 2021; and application No. 10-2021-0031676 (KR), filed on Mar. 10, 2021.
Prior Publication US 2022/0281412 A1, Sep. 8, 2022
Int. Cl. B60R 25/24 (2013.01); B60R 25/01 (2013.01); G05D 1/00 (2024.01)
CPC B60R 25/245 (2013.01) [B60R 25/01 (2013.01); G05D 1/0016 (2013.01); G05D 1/0022 (2013.01); B60R 2325/101 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A low power operating method for a smart key remote controller of a vehicle, the method comprising:
connecting the smart key remote controller to a smart key control system in the vehicle based on a first frequency signal;
acquiring a vibration detection value through a vibration detection sensor;
checking a received signal strength of the first frequency signal received after the connection;
determining whether the vibration detection value is greater than or equal to a preset vibration value and the received signal strength of the first frequency signal is greater than or equal to a preset signal strength value; and
when a determination result is satisfied, activating a second frequency signal module of the smart key remote controller corresponding to a second frequency signal.