US 12,472,918 B2
Brake system
Kristijan Tarandek, Neu-Isenburg (DE); Hans Joerg Feigel, Rosbach (DE); Josko Kurbasa, Waldsolms (DE); Rachid Bouzid, Frankfurt am Main (DE); and Ralf Leiter, Mendig (DE)
Assigned to HL MANDO CORPORATION, Gyeonggi-do (KR)
Appl. No. 17/599,825
Filed by HL MANDO CORPORATION, Gyeonggi-do (KR)
PCT Filed Mar. 27, 2020, PCT No. PCT/KR2020/004275
§ 371(c)(1), (2) Date Sep. 29, 2021,
PCT Pub. No. WO2020/204509, PCT Pub. Date Oct. 8, 2020.
Claims priority of application No. 102019204524.3 (DE), filed on Mar. 29, 2019; and application No. 102019217925.8 (DE), filed on Nov. 20, 2019.
Prior Publication US 2022/0194344 A1, Jun. 23, 2022
Int. Cl. B60T 13/74 (2006.01); B60T 8/17 (2006.01); B60T 13/58 (2006.01); B60T 13/66 (2006.01); B60T 17/22 (2006.01)
CPC B60T 13/741 (2013.01) [B60T 8/17 (2013.01); B60T 13/588 (2013.01); B60T 13/662 (2013.01); B60T 17/22 (2013.01); B60T 2270/402 (2013.01); B60T 2270/413 (2013.01); B60T 2270/414 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A brake system, comprising:
at least one brake with an electric brake actuator and associated with a wheel installed on one axle;
at least one electronic control unit for controlling the at least one brake, the at least one electronic control unit comprising a first brake actuation system for activating the electric brake actuator and a redundant brake actuation system for activating the electric brake actuator in case of a failure of the first brake actuation system;
a first power supply unit; and
a redundant power supply unit, the redundant power supply unit being an independent power source different from the first power supply unit and being or comprising an energy storage having a smaller capacity than the first power supply unit,
wherein the first power supply unit and the redundant power supply unit are connected to or integrated in the at least one electronic control unit and configured for supplying energy to the electric brake actuator, the first power supply unit being connected to the first brake actuation system for supplying energy to the first brake actuation system and via the first brake actuation system to the electric brake actuator, the redundant power supply unit being connected to or integrated in the redundant brake actuation system for supplying energy to the redundant brake actuation system and via the redundant brake actuation system to the electric brake actuator,
wherein the redundant brake actuation system comprises a switching element connected to the electric brake actuator of the at least one brake, the switching element being connected for alternatively connecting the electric brake actuator either to the first brake actuation system or to a brake actuation circuit of the redundant brake actuation system, and
wherein the redundant brake actuation system comprising the switching element is connected between the electric brake actuator and the first brake actuation system including a hydraulic actuator, a first terminal of the switching element of the redundant brake actuation system is connected to the first brake actuation system including the hydraulic actuator and a second terminal of the switching element of the redundant brake actuation system is connected to the electric brake actuator.