Method of updating the transmissibility function of a clutch during a gear change

• Main Authors: ARONICA ANTONINO, SERRA GABRIELE, CIMMINO FRANCESCO
• Format: Patent
• Language: English
• Published: 02.12.2003
• Edition: 7
• Subjects: BLASTING; BRAKES; CALCULATING; CLUTCHES; COMPUTING; CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE ORDIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; COUNTING; COUPLINGS FOR TRANSMITTING ROTATION; ELECTRIC DIGITAL DATA PROCESSING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; PHYSICS; 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

A method of updating the transmissibility function of a clutch during the final stage of a gear change, in which the clutch is closed to cause the angular speed of the drive shaft to equal the angular speed of the primary shaft of the gear change, the engine is set to supply a constant torque, the clutch is disposed in a predetermined position in order to transmit a constant torque greater than the torque supplied by the engine and the actual value of the torque transmitted by the clutch is calculated by subtracting the product of the moment of inertia of the engine and the angular acceleration of the drive shaft from the torque generated by the engine, the actual value of the torque transmitted by the clutch then being used to update the transmissibility function of the clutch.