(19)

(11)

EP 3 833 591 A1

(12)

(43) Date of publication: 16.06.2021 Bulletin 2021/24 (21) Application number: 19752446.5 (22) Date of filing: 31.07.2019

(51) International Patent Classification (IPC):  B61L 23/04(2006.01) (86) International application number: PCT/EP2019/070689 (87) International publication number: WO 2020/030510 (13.02.2020 Gazette 2020/07)

(84) Designated Contracting States: 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 States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 07.08.2018 DE 102018119152 (71) Applicant: Bombardier Transportation GmbH 10785 Berlin (DE)	(72) Inventor: FEL, Landri 1210 Wien (AT) (74) Representative: Zimmermann & Partner Patentanwälte mbB  Postfach 330 920 80069 München 80069 München (DE)