EP 1114260 A1 20010711 - CONTROL METHOD FOR GEAR-SHIFTING UNDER TORQUE
Title (en)
CONTROL METHOD FOR GEAR-SHIFTING UNDER TORQUE
Title (de)
VERFAHREN ZUM ÜBERWACHEN VON SCHALTVORGÄNGEN UNTER DREHMOMENTBELASTUNG
Title (fr)
PROCEDE DE CONTROLE DE CHANGEMENTS DE VITESSES SOUS COUPLE
Publication
Application
Priority
- FR 0001429 W 20000526
- FR 9907071 A 19990604
Abstract (en)
[origin: FR2794512A1] The upshift ratios of a gearbox from ratio i to ratio i+1 in traction comprise the following steps: applying a slight force of disconnection on the idling gear of the initial ratio i; gradually drifting the engine torque towards the idling gear of a ratio n higher than i; by clamping a friction member (23) with controlled pressure, disconnecting the first idling gear; synchronising the engine and the input shaft by adjusting the clamping pressure of the friction member, while transmitting the desired torque; detecting the oncoming speed synchronism on the new ratio i+1; disconnecting the idling gear of the new ratio i+1; and gradually releasing the friction member.
IPC 1-7
IPC 8 full level
B60W 10/02 (2006.01); B60W 10/06 (2006.01); B60W 10/10 (2012.01); B60W 30/18 (2012.01); F16H 3/12 (2006.01); F16H 61/04 (2006.01); F16H 63/46 (2006.01)
CPC (source: EP)
B60W 10/02 (2013.01); B60W 10/06 (2013.01); B60W 10/11 (2013.01); B60W 30/18 (2013.01); F16H 3/12 (2013.01); F16H 61/0403 (2013.01); F16H 63/46 (2013.01); B60W 30/19 (2013.01); B60W 2510/0638 (2013.01); B60W 2710/021 (2013.01); B60W 2710/0666 (2013.01); B60W 2710/1005 (2013.01); F16H 63/502 (2013.01); F16H 2061/0407 (2013.01); F16H 2061/0429 (2013.01)
Citation (search report)
See references of WO 0075532A1
Designated contracting state (EPC)
DE ES GB IT
DOCDB simple family (publication)
FR 2794512 A1 20001208; FR 2794512 B1 20010727; EP 1114260 A1 20010711; WO 0075532 A1 20001214
DOCDB simple family (application)
FR 9907071 A 19990604; EP 00931357 A 20000526; FR 0001429 W 20000526