METHOD AND SYSTEM FOR DETERMINING THE CONTACT POINT FOR A CLUTCH IN A VEHICLE

A method for determining the contact point for a clutch in a vehicle comprising an engine, a clutch, powered wheels and a gearbox. The gearbox has a first gearbox component which is connected to the clutch and disconnectable from the powered wheels. The method steps include estimating (405) a fricti...

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Bibliographic Details
Main Author JUHLIN-DANNFELT, PETER
Format Patent
LanguageEnglish
French
German
Published 02.07.2014
Subjects
BLASTING
BRAKES
CLUTCHES
COUPLINGS FOR TRANSMITTING ROTATION
ENGINEERING ELEMENTS AND UNITS
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
LIGHTING
MECHANICAL ENGINEERING
THERMAL INSULATION IN GENERAL
WEAPONS
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Summary:A method for determining the contact point for a clutch in a vehicle comprising an engine, a clutch, powered wheels and a gearbox. The gearbox has a first gearbox component which is connected to the clutch and disconnectable from the powered wheels. The method steps include estimating (405) a friction torque for the first gearbox component, whereby the torque transmitted by the clutch is a function of estimated friction torque, closing (407) the clutch, whereby a representation of a torque transmitted by the clutch is determined for a plurality of positions for the clutch, determining (409) the contact point by means of the determined representation of torque transmitted, and the further step (402), before the closure of the clutch, of accelerating the first gearbox component if its rotation speed is below a certain value. Also a system and a vehicle for performing the method are disclosed.
Bibliography:Application Number: EP20100817514