Motor vehicle with a device for actuating the torque-transmission system and the gearbox

• Main Authors: IVO AGNER, BURKHARD KREMMLING, DETHLEF AXMACHER, MATTHIAS GRAMANN, DIRK HEINTZEN, GERHARD OVERDIEK, NGUYEN VAN DOAN, GERHARD HETTICH
• Format: Patent
• Language: English
• Published: 30.07.1997
• Edition: 6
• Subjects: BLASTING; CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE ORDIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ENGINEERING ELEMENTS AND UNITS; GEARING; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TOTHE CONTROL OF A PARTICULAR SUB-UNIT; THERMAL INSULATION IN GENERAL; TRANSPORTING; VEHICLES IN GENERAL; WEAPONS

The invention concerns a motor vehicle with an engine, a gearbox and a torque-transmission system (3) disposed in the torque flow between engine and gearbox, with an actuator unit (13) for actuating the coupling operation and the gear-change and selection operation in order to change gear automatically. The actuator unit (13) is supplied by a hydraulic unit, comprising a hydraulic pump (14) and optionally a pressure accumulator (28) with a pressurized medium for deliberately triggering a gear-change operation. The actuator unit (13) comprises at least one actuator and the hydraulic fluid connections which are triggered for the controlled actuation of the gear-change and selection operation.