With the growing traffic density and increasing comfort requirements, the automation of the drive train will gain importance in vehicles. The automatic clutch actuation relieves the drivers especially in urban driving and stop-and-go traffic conditions. This paper describes the dynamic modelling of a clutch actuator and clutch spring. The dynamic model of the clutch system is developed using MATLAB/Simulink, and evaluated by experimental data using a test rig. This performance simulator is useful to develop the clutch-by-wire (CBW) system for an automated manual transmission (AMT). The elektromechanical type CBW system is also implemented as an automatic clutch for AMT. The prototype of the CBW system including the clutch actuator is designed and implemented systematically, and composed of an electric motor, worm gear and crank mechanism. The test rig is developed to perform the basic function test of the automatic clutch, and the developed prototype is validated by the experimental data employing the test rig. From the test results, it has a response time of 350 msec for disengagement and 240 msec for engagement, which is considered to be suitable as a CBW actuator. Further research will be carried out on an engagement algorithm considering the transmitted torque and experiments at worn clutch condition. Research on more compact design must be carried out to practically implement the proposed CBW actuator to a real vehicle.


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    Title :

    Design and implementation of clutch-by-wire system for automated manual transmissions


    Additional title:

    Entwurf und Realisierung eines selbsttätigen Kupplungssystems für automatisierte Handschaltgetriebe


    Contributors:
    Moon, S.E. (author) / Kim, M.S. (author) / Yeo, H. (author) / Kim, H.S. (author) / Song, H.L. (author) / Han, K.S. (author) / Hwang, S.H. (author)

    Published in:

    Publication date :

    2004


    Size :

    18 Seiten, 21 Bilder, 1 Tabelle, 10 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English





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