Efficiency improvement of the pushbelt CVT by reducing variator clamping forces is well established. The increased risk of gross belt slip calls for novel approach, including direct control of belt slip. First attempts led to promising results in steady state conditions, but unacceptable slip occurred during fast shifting events. In this work theoretical variator shift models are validated. Results are used for model optimisation of the variator shift dynamics, leading to an optimised CVT slip controller. Results of the experiments after implementation in a test vehicle are presented. A comparison is made to the results obtained with the previous controller
Shift dynamics modelling for optimization variator slip control in a push-belt CVT / Simons, S. W. H.; Klaassen, T. W. G. L.; Veenhuizen, P. A.; Carbone, Giuseppe. - In: INTERNATIONAL JOURNAL OF VEHICLE DESIGN. - ISSN 0143-3369. - 48:1/2(2008), pp. 45-64. [10.1504/IJVD.2008.021151]
Shift dynamics modelling for optimization variator slip control in a push-belt CVT
CARBONE, Giuseppe
2008-01-01
Abstract
Efficiency improvement of the pushbelt CVT by reducing variator clamping forces is well established. The increased risk of gross belt slip calls for novel approach, including direct control of belt slip. First attempts led to promising results in steady state conditions, but unacceptable slip occurred during fast shifting events. In this work theoretical variator shift models are validated. Results are used for model optimisation of the variator shift dynamics, leading to an optimised CVT slip controller. Results of the experiments after implementation in a test vehicle are presented. A comparison is made to the results obtained with the previous controllerI documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.