US 11,840,207 B2
Method for controlling ESC integrated braking system
Yong Cheol Seol, Yongin-si (KR)
Assigned to Hyundai Mobis Co., Ltd., Seoul (KR)
Filed by HYUNDAI MOBIS Co., Ltd., Seoul (KR)
Filed on Aug. 18, 2020, as Appl. No. 16/995,814.
Claims priority of application No. 10-2019-0101579 (KR), filed on Aug. 20, 2019.
Prior Publication US 2021/0053543 A1, Feb. 25, 2021
Int. Cl. B60T 17/22 (2006.01); B60T 8/88 (2006.01); B60T 8/92 (2006.01); B60T 13/14 (2006.01); B60T 13/68 (2006.01)
CPC B60T 17/22 (2013.01) [B60T 8/885 (2013.01); B60T 8/92 (2013.01); B60T 13/142 (2013.01); B60T 13/686 (2013.01); B60T 2220/04 (2013.01); B60T 2270/402 (2013.01); B60T 2270/88 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of controlling an electronic stability control (ESC) integrated braking system, the method comprising:
when a failure in which pressure is unable to be formed in a master cylinder unit is detected during braking of a vehicle by the ESC integrated braking system, maintaining, by a controller, a braking force applied during the braking by closing designated oil pressure relief valves for coupling the master cylinder unit and a flow channel of a circuit; and
when pressure (PC1) of a pedal cylinder unit becomes equal to or greater than pressure (MC1) of the circuit based on the maintained braking force, by a brake pedal stepped on by a driver, controlling, by the controller, the designated oil pressure relief valves to be in an open state and then switching the state of the designated oil pressure relief valves to a mechanical backup state.