EP 4396053 A1 20240710 - ELECTRONICALLY CONTROLLABLE PNEUMATIC BRAKING SYSTEM WITH FAILSAFE BRAKING APPLICATION FOR AUTONOMOUS DRIVING, HAVING ONLY ONE SHUTTLE VALVE
Title (en)
ELECTRONICALLY CONTROLLABLE PNEUMATIC BRAKING SYSTEM WITH FAILSAFE BRAKING APPLICATION FOR AUTONOMOUS DRIVING, HAVING ONLY ONE SHUTTLE VALVE
Title (de)
ELEKTRONISCH STEUERBARES PNEUMATISCHES BREMSSYSTEM MIT EINER AUSFALLSICHEREN BREMSANWENDUNG FÜR EINEN AUTONOMEN FAHRBETRIEB MIT NUR EINEM WECHSELVENTIL
Title (fr)
SYSTÈME DE FREINAGE PNEUMATIQUE À COMMANDE ÉLECTRONIQUE AVEC APPLICATION DE FREINAGE À SÉCURITÉ INTÉGRÉE POUR CONDUITE AUTONOME, COMPRENANT UNIQUEMENT UNE SOUPAPE NAVETTE
Publication
Application
Priority
- DE 102021122501 A 20210831
- EP 2022071541 W 20220801
Abstract (en)
[origin: WO2023030797A1] The invention relates to an electronically controllable pneumatic braking system (204) for a utility vehicle (202), comprising a first control unit (410) for a primary system (B1) and a second control unit (420) for a first fallback level (B2), and a monostable fail-safety valve unit (1) which pneumatically connects a main port (20), which provides a first pressure (p1), and a failure brake port (22), wherein the fail-safety valve unit (1) is both connected to the two control units (410, 420) and in a fault situation (FF), power failure (SF) and/or diagnostic situation (FD) of the control units (410, 420). In order to provide the failure brake pressure (pN) for triggering a failure braking operation (BA), the failure brake port (22) is connected upstream of a functional pneumatic unit (430) of the primary system (B1) and/or of the first fallback level (B2) to the latter in such a way that both front axle service brake actuators (440a, 440b) and rear axle service brake actuators (442a, 442b, 442c, 442d) have a brake pressure (pBVA, pBHA) applied thereto in order to implement the failure braking operation (BA).
IPC 8 full level
B60T 13/68 (2006.01); B60T 8/32 (2006.01); B60T 17/22 (2006.01)
CPC (source: EP US)
B60T 8/327 (2013.01 - EP); B60T 13/662 (2013.01 - EP US); B60T 13/683 (2013.01 - EP); B60T 15/027 (2013.01 - US); B60T 17/221 (2013.01 - EP US); B60T 8/26 (2013.01 - US); B60T 2270/413 (2013.01 - US); B60T 2270/88 (2013.01 - US); F16D 2121/08 (2013.01 - EP)
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)
DE 102021122501 A1 20230302; CN 117693454 A 20240312; EP 4396053 A1 20240710; US 2024198996 A1 20240620; WO 2023030797 A1 20230309
DOCDB simple family (application)
DE 102021122501 A 20210831; CN 202280050635 A 20220801; EP 2022071541 W 20220801; EP 22758228 A 20220801; US 202418589123 A 20240227