Predicting the launch feel of automatic and dual clutch transmissions

Neil Roberts
Claytex Services Ltd., Edmund House, Rugby Road, Leamington Spa, UK

Mike Dempsey
Claytex Services Ltd., Edmund House, Rugby Road, Leamington Spa, UK

Ladda ner artikelhttp://dx.doi.org/10.3384/ecp12076295

Ingår i: Proceedings of the 9th International MODELICA Conference; September 3-5; 2012; Munich; Germany

Linköping Electronic Conference Proceedings 76:30, s. 295-302

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Publicerad: 2012-11-19

ISBN: 978-91-7519-826-2

ISSN: 1650-3686 (tryckt), 1650-3740 (online)


The Powertrain Dynamics Library (PTDynamics) has been developed using a new approach to modelling the mechanics of rotating MultiBody systems. This paper will highlight the recent developments within the PTDynamics library with a focus on the dynamic torque converter and wet clutch models that enable the prediction of the launch feel of automatic and dual clutch transmission equipped vehicles. Two examples are presented: one that compares the effect of oil temperature on the initial launch of a vehicle with a dual wet-clutch transmission; and a second that compares the behaviour of steady state and dynamic torque converter models.


powertrain dynamics; driveability; dynamic torque converter; wet clutch; automatic transmission; dual-clutch transmission


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