US 12,391,228 B2
Electronic brake for vehicle and control method therefor
Jae Il Lim, Yongin-si (KR)
Assigned to HYUNDAI MOBIS CO., LTD., Seoul (KR)
Filed by HYUNDAI MOBIS Co., Ltd., Seoul (KR)
Filed on Jun. 27, 2022, as Appl. No. 17/850,171.
Claims priority of application No. 10-2021-0151793 (KR), filed on Nov. 5, 2021.
Prior Publication US 2023/0144112 A1, May 11, 2023
Int. Cl. B60T 8/94 (2006.01); B60T 8/32 (2006.01); B60T 13/58 (2006.01); B60T 13/68 (2006.01); B60T 13/74 (2006.01); B60T 17/22 (2006.01)
CPC B60T 8/94 (2013.01) [B60T 8/326 (2013.01); B60T 13/58 (2013.01); B60T 13/686 (2013.01); B60T 13/74 (2013.01); B60T 17/22 (2013.01); B60T 2201/03 (2013.01); B60T 2220/04 (2013.01); B60T 2270/402 (2013.01); B60T 2270/404 (2013.01); B60T 2270/406 (2013.01); B60T 2270/82 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A control method for an electronic brake for a vehicle, the electronic brake comprising a first braking device configured to supply hydraulic pressure to wheel brakes, a second braking device including a pump, that is connected between at least part of the wheel brakes and the first braking device and configured to fluidically disconnect an oil reservoir and an outlet of the pump when a brake pedal is pressed a predetermined distance or greater, and a control unit including a first controller for controlling the first braking device and a second controller for controlling the second braking device,
the method comprising:
determining, by the control unit, whether something is wrong with the first braking device;
based on a determination that something is wrong with the first braking device, determining, by the control unit, whether something is wrong with a blocking valve unit mounted to the second braking device and connected between the oil reservoir and the outlet of the pump; and
based on a determination that something is wrong with the blocking valve unit, controlling the first braking device by the first controller so that a flow path on the first braking device connecting the oil reservoir and the outlet of the pump is closed,
wherein the determining of whether something is wrong with the blocking valve unit comprises
determining whether the blocking valve unit gets stuck while opening so that a fluid pressurized in the second braking device leaks into the oil reservoir.