EP 4320018 A1 20240214 - FAIL-SAFE BRAKING SYSTEM
Title (en)
FAIL-SAFE BRAKING SYSTEM
Title (de)
AUSFALLSICHERES BREMSSYSTEM
Title (fr)
SYSTÈME DE FREINAGE À SÉCURITÉ INTÉGRÉE
Publication
Application
Priority
- DE 202021105880 U 20210407
- DE 202021105878 U 20210909
- DE 102022102036 A 20220128
- EP 2022059069 W 20220406
Abstract (en)
[origin: WO2022214521A1] The invention relates to a braking system, comprising: - at least two wheel brake cylinders (RZ1-4), which are part of respective separate wheel circuits (RK1-4); - at least one pressure supply (DV), which is used at least for the pressure build-up (Pauf) in the wheel brake cylinders (RZ1-4); - at least one reservoir (VB); - at least one electronic open-loop and closed-loop control device (ECU); - switching valves (SV2K1-4); wherein each wheel brake cylinder (RZ1-4) is connected, by means of an associated hydraulic connecting line, to a switching valve (SV2K1-4), which is used to disconnect and connect the hydraulic connection between the associated wheel brake cylinder (RZ1-4) and at least one additional hydraulic main line, by means of which the switching valve ((SV2K1-4) can be or is connected at least to the pressure supply (DV), at least the hydraulic connecting line and the wheel brake cylinder (RZ1-4) connected thereto being part of a wheel circuit (RK1-4). The braking system is characterized in that, in the case of at least one, more particularly all, of the switching valves (SV2K1-4), the electric drive or individual components thereof is/are redundantly implemented and/or the switching valve (SV2K1-4) has a force auxiliary device (EM2, 9), which applies, by means of its own magnetic field, a force (FM2) to a valve actuator or valve tappet (7), and/or the switching valve (SV2K1-4) has a restoring spring, which applies a force to the valve actuator or the valve tappet (7), said force preventing the corking of the switching valve (SV2K1-4), more particularly in one of two flow directions, and/or the braking system has at least one isolation valve (KTV, DV/TV), by means of which at least two wheel circuits (RK1-4) or brake circuits (I, II) can be disconnected from or connected to each other.
IPC 8 full level
B60T 13/68 (2006.01)
CPC (source: EP US)
B60T 8/171 (2013.01 - US); B60T 13/142 (2013.01 - US); B60T 13/148 (2013.01 - US); B60T 13/62 (2013.01 - US); B60T 13/686 (2013.01 - EP US); B60T 17/22 (2013.01 - US); B60T 2220/04 (2013.01 - US); B60T 2270/402 (2013.01 - EP US); B60T 2270/404 (2013.01 - US); B60T 2270/413 (2013.01 - US); B60T 2270/82 (2013.01 - US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
WO 2022214521 A1 20221013; EP 4320018 A1 20240214; US 2024157923 A1 20240516
DOCDB simple family (application)
EP 2022059069 W 20220406; EP 22721283 A 20220406; US 202218285998 A 20220406