US 12,036,969 B2
Electric parking brake system and control method therefor
Gungjin Nam, Seoul (KR)
Assigned to HL MANDO CORPORATION, Pyeongtaek (KR)
Appl. No. 17/766,259
Filed by HL MANDO CORPORATION, Pyeongtaek (KR)
PCT Filed Sep. 28, 2020, PCT No. PCT/KR2020/013201
§ 371(c)(1), (2) Date Apr. 4, 2022,
PCT Pub. No. WO2021/075763, PCT Pub. Date Apr. 22, 2021.
Claims priority of application No. 10-2019-0128031 (KR), filed on Oct. 15, 2019.
Prior Publication US 2024/0051506 A1, Feb. 15, 2024
Int. Cl. B60T 8/171 (2006.01); B60T 8/172 (2006.01); B60T 8/18 (2006.01); B60T 8/24 (2006.01); B60T 8/26 (2006.01); B60T 8/30 (2006.01); B60T 8/40 (2006.01); B60T 13/74 (2006.01)
CPC B60T 8/172 (2013.01) [B60T 8/171 (2013.01); B60T 8/18 (2013.01); B60T 8/245 (2013.01); B60T 8/26 (2013.01); B60T 8/30 (2013.01); B60T 8/4022 (2013.01); B60T 13/746 (2013.01); B60T 2210/20 (2013.01); B60T 2250/02 (2013.01)] 13 Claims
OG exemplary drawing
 
1. An electronic parking brake system, comprising:
a first electronic parking brake provided on a front wheel side of a vehicle to generate a first clamping force;
a second electronic parking brake provided on a rear wheel side of the vehicle to generate a second clamping force;
a gradient sensor detecting a gradient of the vehicle; and
a controller determining a total clamping force required for parking based on a vehicle gradient and vehicle weight information, determining an electronic parking brake to operate among the electronic parking brakes according to the determined total clamping force and operating the determined electronic parking brake,
wherein a first clamping force generated by the first electronic parking brake is set to be lower than a second clamping force generated by the second electronic parking brake,
wherein the controller selectively determines an electronic parking brake to operate as at least one of the first electronic parking brake and the second electronic parking brake based on a comparison of the determined total clamping force with at least one of the first clamping force and the second clamping force.