EP 1021665 A1 20000726 - METHOD AND DEVICE FOR CONTROLLING THE SUPPLY OF AN AUTOMATIC TRANSMISSION HYDRAULIC ACTUATORS
Title (en)
METHOD AND DEVICE FOR CONTROLLING THE SUPPLY OF AN AUTOMATIC TRANSMISSION HYDRAULIC ACTUATORS
Title (de)
VERFAHREN UND VORRICHTUNG ZUR STEUERUNG DES VERSORGUNGSDRUCKES FÜR DIE HYDRAULISCH BETÄTIGTEN STELLGLIEDER EINES AUTOMATIKGETRIEBES
Title (fr)
PROCEDE ET DISPOSITIF DE CONTROLE DE L'ALIMENTATION DES RECEPTEURS HYDRAULIQUES D'UNE TRANSMISSION AUTOMATIQUE
Publication
Application
Priority
- FR 9802180 W 19981012
- FR 9712661 A 19971010
Abstract (en)
[origin: FR2769677A1] The hydraulic feed for changing up or changing down gears is obtained by emptying the first operator and filling a second operator which control the clutches (E1,E2,E3) or the band brakes (F1,F2,F3,F4). The gear change can be found in one of the following conditions: a) emptying or empty without any particular control, b) in phase with active control for its filling in changing up under the pressure PL, c) in phase with active control for its emptying in changing up or refilling in changing down under a second pressure P2.
IPC 1-7
IPC 8 full level
F16H 61/06 (2006.01); F16H 61/00 (2006.01)
CPC (source: EP)
F16H 61/061 (2013.01); F16H 61/0021 (2013.01); F16H 2061/0253 (2013.01)
Citation (search report)
See references of WO 9919644A1
Designated contracting state (EPC)
DE ES GB IT
DOCDB simple family (publication)
FR 2769677 A1 19990416; FR 2769677 B1 19991203; EP 1021665 A1 20000726; WO 9919644 A1 19990422
DOCDB simple family (application)
FR 9712661 A 19971010; EP 98949039 A 19981012; FR 9802180 W 19981012