US 12,459,476 B2
Electric hydraulic brake
Sung Ki Ahn, Yongin-si (KR); Chun Sic Yun, Yongin-si (KR); Seung Hyun Yun, Yongin-si (KR); and Byoung Woo Ha, Yongin-si (KR)
Assigned to HYUNDAI MOBIS CO., LTD., Seoul (KR)
Filed by HYUNDAI MOBIS Co., Ltd., Seoul (KR)
Filed on Jul. 11, 2022, as Appl. No. 17/861,669.
Claims priority of application No. 10-2021-0091227 (KR), filed on Jul. 12, 2021.
Prior Publication US 2023/0012180 A1, Jan. 12, 2023
Int. Cl. B60T 13/74 (2006.01); B60T 8/88 (2006.01); B60T 13/14 (2006.01)
CPC B60T 13/745 (2013.01) [B60T 8/885 (2013.01); B60T 13/142 (2013.01); B60T 2270/413 (2013.01)] 13 Claims
OG exemplary drawing
 
1. An electric hydraulic brake comprising:
a plurality of wheel brakes supplying braking force to wheels of a vehicle;
a reservoir storing brake oil;
a master cylinder connected to the reservoir, and operated in conjunction with a main brake motor to generate pressure of the brake oil;
a first controller configured to control the main brake motor according to brake input;
a hydraulic controller comprising a pump configured to form pressure of the brake oil in conjunction with an auxiliary brake motor, and a hydraulic block configured to selectively transmit the pressure of the brake oil formed in the master cylinder or the pump to the plurality of wheel brakes; and
a second controller configured to control the auxiliary brake motor when the master cylinder or the first controller malfunctions,
wherein the hydraulic controller is provided with at least one auxiliary flow path to transmit the brake oil from the reservoir to the pump directly through the at least one auxiliary flow path, and
wherein the hydraulic block is provided with a first side in which a plurality of ports connected to the flow path are located, and a second side to which the auxiliary brake motor is attached, and at least one side of the hydraulic block is coupled to the master cylinder,
wherein the master cylinder is fixedly coupled to the first side or the second side of the hydraulic block.