Global Patent Index - EP 4363259 A1

EP 4363259 A1 20240508 - METHOD FOR OPERATING AN ELECTRIFIED DRIVE TRAIN FOR A WORKING MACHINE, ELECTRIFIED DRIVE TRAIN FOR A WORKING MACHINE AND WORKING MACHINE

Title (en)

METHOD FOR OPERATING AN ELECTRIFIED DRIVE TRAIN FOR A WORKING MACHINE, ELECTRIFIED DRIVE TRAIN FOR A WORKING MACHINE AND WORKING MACHINE

Title (de)

VERFAHREN ZUM BETREIBEN EINES ELEKTRIFIZIERTEN ANTRIEBSSTRANGS FÜR EINE ARBEITSMASCHINE, ELEKTRIFIZIERTER ANTRIEBSSTRANG FÜR EINE ARBEITSMASCHINE UND ARBEITSMASCHINE

Title (fr)

PROCÉDÉ PERMETTANT DE FAIRE FONCTIONNER UNE CHAÎNE CINÉMATIQUE ÉLECTRIFIÉE POUR UNE MACHINE DE TRAVAIL, CHAÎNE CINÉMATIQUE ÉLECTRIFIÉE POUR UNE MACHINE DE TRAVAIL, ET MACHINE DE TRAVAIL

Publication

EP 4363259 A1 20240508 (DE)

Application

EP 22734966 A 20220623

Priority

  • DE 102021206653 A 20210628
  • EP 2022067171 W 20220623

Abstract (en)

[origin: WO2023274836A1] The invention relates to a method for operating an electrified drive train for a working machine, wherein an electric motor of the drive train is drive-coupled to at least one wheel of the working machine, wherein the working machine, when travelling downhill, experiences a downhill force which causes (100) an acceleration torque on the working machine, wherein a generator torque of the electric motor counters the acceleration torque during generator operation, wherein a maximum generator torque is dependent on an actual motor rotation speed of the electric motor and wherein, when the working machine accelerates on account of the downhill force (101), an automatic braking intervention is performed (102). The method according to the invention is distinguished in that, owing to the braking intervention, the actual motor rotation speed is reduced until the maximum generator torque at a reduced actual motor rotation speed is at least equal to the acceleration torque (104). The invention also relates to a corresponding electrified drive train for a working machine as well as to a corresponding working machine.

IPC 8 full level

B60L 7/26 (2006.01); B60W 10/08 (2006.01)

CPC (source: EP US)

B60L 7/10 (2013.01 - EP); B60L 7/26 (2013.01 - EP); B60L 15/2018 (2013.01 - EP); B60W 10/08 (2013.01 - EP US); B60W 10/188 (2013.01 - EP US); B60W 30/18127 (2013.01 - EP US); B60L 2240/421 (2013.01 - EP); B60W 2520/105 (2013.01 - EP); B60W 2710/081 (2013.01 - EP US); B60W 2710/083 (2013.01 - EP 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)

DE 102021206653 B3 20221201; CN 117580725 A 20240220; EP 4363259 A1 20240508; US 2024294162 A1 20240905; WO 2023274836 A1 20230105

DOCDB simple family (application)

DE 102021206653 A 20210628; CN 202280045725 A 20220623; EP 2022067171 W 20220623; EP 22734966 A 20220623; US 202218574371 A 20220623