Identification of a toroidal continuously variable transmission using continuous-time system identification methods

This paper deals with the identification of a toroidal continuously variable transmission (T-CVT). The model describing the T-CVT system is a model with exogenous time-varying parameters and, in order to facilitate the parameter estimation, the complete T-CVT model is split into two sub-models. The parameters of the first sub-model are estimated with the Poisson moment functionals (PMF) method around several operating points, while the parameter of the second sub-model, reduced to a pure integrator, is estimated with the linear integral filter (LIF) method. These two methods belong to the continuous-time system identification methods. The complete T-CVT model accuracy is finally verified with experiments carried out with a test-bed and an actual vehicle.