Motor vehicle with torque transmission system between engine and auto gearbox of vehicle

• Main Authors: DOAN, NGUYEN VAN, 60437 FRANKFURT, DE, OVERDIEK, GERHARD., 61381 FRIEDRICHSDORF, DE, GRAMANN, MATTHIAS, 91233 NEUNKIRCHEN, DE, AGNER, IVO, 61352 BAD HOMBURG, DE, AXMACHER, DETHLEF, 58636 ISERLOHN, DE, HETTICH, GERHARD., 90599 DIETENHOFEN, DE, KREMMLING, BURKHARD, 77871 RENCHEN, DE, HEINTZEN, DIRK, 58089 HAGEN, DE
• Format: Patent
• Language: English; German
• Published: 13.03.1997
• 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 car with an engine, a gearbox and a torque transmitter between them has an actuator for the clutch operation and the automatic selection of the gear. This is supplied by a hydraulic unit with a pump, valves and a pressure store. The actuator system has a first region where a proportional valve controls the fluid pressure for switching and a following valve controls the direction, plus a second region where a proportional valve controls the fluid pressure to operate the torque transmission system with a following valve to activate the gear selection. The actuator and the hydraulic unit form a single entity.