Global Patent Index - EP 1276629 A1

EP 1276629 A1 20030122 - METHOD AND DEVICE FOR ADJUSTING A GEARBOX STEP-UP RATIO IN A MOTOR VEHICLE COMPRISING ADAPTIVE CRUISE CONTROL AND/OR A VEHICLE-SPEED CONTROLLER

Title (en)

METHOD AND DEVICE FOR ADJUSTING A GEARBOX STEP-UP RATIO IN A MOTOR VEHICLE COMPRISING ADAPTIVE CRUISE CONTROL AND/OR A VEHICLE-SPEED CONTROLLER

Title (de)

VERFAHREN UND VORRICHTUNG ZUR EINSTELLUNG EINER GETRIEBEÜBERSETZUNG BEI EINEM KRAFTFAHRZEUG MIT EINEM ABSTANDS- UND/ODER FAHRGESCHWINDIGKEITSREGLER

Title (fr)

PROCEDE ET DISPOSITIF PERMETTANT DE REGLER UN RAPPORT DE TRANSMISSION DANS UNE AUTOMOBILE, AU MOYEN D'UN REGULATEUR DE VITESSE ADAPTATIF

Publication

EP 1276629 A1 20030122 (DE)

Application

EP 01929266 A 20010327

Priority

  • DE 0101169 W 20010327
  • DE 10018911 A 20000417

Abstract (en)

[origin: WO0179016A1] The invention relates to a method and a device for adjusting the gearbox step-up ratio of a gearbox fitted into the drive train of a motor vehicle, during the activation of an adaptive cruise control (ACC) system and/or a vehicle-speed controller. During said activation, a desired variable is predetermined. At least the drive motor of the vehicle is controlled depending on said desired variable. The invention is characterized in that if a first operating condition exists, said desired variable or a value that is derived from said desired variable is limited. The adjustment of the gearbox step-up ratio then takes place based on the limited variable or on the limited value. If a second operating condition exists, the adjustment of the gearbox step-up ratio takes place based on the desired variable or on the value. This prevents unnecessary and inconvenient shifting-down procedures during the ACC operation, without having to dispense with any rapid acceleration that may be necessary.

IPC 1-7

B60K 31/04; F16H 61/02; F02D 11/10

IPC 8 full level

B60W 10/04 (2006.01); B60K 31/00 (2006.01); B60K 31/04 (2006.01); B60W 30/00 (2006.01); B60W 30/16 (2012.01); F02D 11/10 (2006.01); F02D 29/02 (2006.01); F02D 41/14 (2006.01); F16H 61/02 (2006.01); F16H 59/18 (2006.01); F16H 61/16 (2006.01)

CPC (source: EP US)

B60K 31/0008 (2013.01 - EP US); B60K 31/047 (2013.01 - EP US); B60W 30/16 (2013.01 - EP US); F02D 11/105 (2013.01 - EP US); F16H 61/0213 (2013.01 - EP US); B60W 2710/0666 (2013.01 - EP US); B60W 2710/0677 (2013.01 - EP); F16H 59/18 (2013.01 - EP US); F16H 61/16 (2013.01 - EP US)

Citation (search report)

See references of WO 0179016A1

Designated contracting state (EPC)

DE ES FR GB IT SE

DOCDB simple family (publication)

WO 0179016 A1 20011025; DE 10115052 A1 20011025; EP 1276629 A1 20030122; JP 2002029291 A 20020129; US 2002069009 A1 20020606; US 6662098 B2 20031209

DOCDB simple family (application)

DE 0101169 W 20010327; DE 10115052 A 20010327; EP 01929266 A 20010327; JP 2001118086 A 20010417; US 83679901 A 20010417