Global Patent Index - EP 4248109 A1

EP 4248109 A1 20230927 - METHOD FOR HEATING A GEARBOX

Title (en)

METHOD FOR HEATING A GEARBOX

Title (de)

VERFAHREN ZUM ERWÄRMEN EINES GETRIEBES

Title (fr)

PROCÉDÉ DE CHAUFFAGE D'UNE BOÎTE DE VITESSES

Publication

EP 4248109 A1 20230927 (DE)

Application

EP 21794368 A 20211018

Priority

  • DE 102020214635 A 20201120
  • EP 2021078748 W 20211018

Abstract (en)

[origin: WO2022106129A1] The invention relates to a method for heating a gearbox (3) with a torque converter (11), wherein different gears (R1, R2, R3, V1, V2, V3) can be engaged by selectively actuating clutches (K1, K2, K3, KR, KV), wherein the gearbox (3) is blocked on the output side, as a result of which a turbine shaft (12) of the torque converter (11) is fixed while a drive power is introduced into the gearbox (3) by means of a drive element (2), characterised in that the blocking is implemented by actuating the clutches (K1, K2, K3, KR, KV) in such a way that two mutually different gears (R1, R2, R3, V1, V2, V3) of one direction of travel are engaged simultaneously.

IPC 8 full level

F16H 61/00 (2006.01); F16H 57/04 (2010.01)

CPC (source: EP US)

F16H 57/0413 (2013.01 - EP US); F16H 61/0059 (2013.01 - EP US); F16H 61/0213 (2013.01 - US); B60W 30/194 (2013.01 - US); F16H 2061/0232 (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)

WO 2022106129 A1 20220527; CN 116507831 A 20230728; DE 102020214635 A1 20220525; DE 102020214635 B4 20220602; EP 4248109 A1 20230927; US 11994207 B2 20240528; US 2023407960 A1 20231221

DOCDB simple family (application)

EP 2021078748 W 20211018; CN 202180077012 A 20211018; DE 102020214635 A 20201120; EP 21794368 A 20211018; US 202118252264 A 20211018