US 12,296,800 B2
Electronic parking brake system and control method thereof
Yeonghan Yun, Anyang-si (KR)
Assigned to HL MANDO CORPORATION, Pyeongtaek (KR)
Filed by HL MANDO CORPORATION, Pyeongtaek-si (KR)
Filed on Aug. 23, 2022, as Appl. No. 17/893,323.
Claims priority of application No. 10-2021-0118590 (KR), filed on Sep. 6, 2021.
Prior Publication US 2023/0075904 A1, Mar. 9, 2023
Int. Cl. B60T 17/22 (2006.01); B60T 13/74 (2006.01)
CPC B60T 17/221 (2013.01) [B60T 13/741 (2013.01); B60T 2270/406 (2013.01)] 10 Claims
OG exemplary drawing
 
1. An electronic parking brake system, comprising:
an electronic parking brake (EPB) comprising a pair of brake pads disposed on both sides of a brake disc rotating with a rear wheel of a vehicle, a piston provided to press the pair of brake pads, a nut member provided to press the piston, a spindle member provided to move the nut member, and a motor configured to rotate the spindle member; and
a controller electrically connected to the motor and configured to perform a parking operation for the EPB,
wherein the controller is configured to detect an inrush current flowing through the motor during the parking operation, and identify a low voltage fault based on the detected inrush current.