公开(公告)号：US20230174034A1

公开(公告)日：2023-06-08

申请号：US17724303

申请日：2022-04-19

Applicant: HYUNDAI MOTOR COMPANY ,  KIA CORPORATION

Inventor： Yong Yeon KIM ,  Joo Beom KIM

IPC: B60T8/88 ,  B60T8/94 ,  B60T13/68

CPC classification number: B60T8/885 ,  B60T8/94 ,  B60T13/686 ,  B60T2270/88 ,  B60T2270/402 ,  B60T2270/413

Abstract: A method of operating a brake redundancy device including a main braking controller and a backup braking controller, includes: confirming whether or not a command signal for deceleration of the vehicle has been received, by the backup braking controller; executing a front-wheel braking mode by the backup braking controller when the command signal has been received; determining whether or not an allowable condition for providing the hydraulic pressure to wheel cylinders of rear wheels has been satisfied; and executing a rear-wheel braking mode through a cooperative control of the main braking controller and the backup braking controller when the allowable condition has been satisfied, wherein in the executing of the rear-wheel braking mode, the hydraulic pressure is provided from the backup braking controller to a portion of the main braking controller.