LPV identification of a diesel engine torque model

in 13th IFAC Symp. of System Identification, 2003
Author(s):Wei X., del Re L.
In this paper a Linear Parameters Varying (LPV) torque model for an automotive diesel engine is presented based on the nonlinear subspace identification method. Diesel engine is a nonlinear system and it is not easy to get a precise torque model for control through physical analysis. A LPV state space method is first introduced to estimate the diesel engine model for its speed control. The experiment results show that the model exhibits a very high accuracy for the engine torque estimation that can't be reached by the traditional identification methods. Some discussion about the model structure and its application are presented and a new noninear systems model structure is proposed.
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