Sampled-data Linear Parameter Varying control of a turbocharged diesel engine

A parameter varying sampled-data control design is applied to the air handling problem of a turbocharged diesel engine, by using a Linear Parameter Varying (LPV) approach. The method takes the variable sampling time due to the variation of the engine speed into consideration through the controller design. The continuous dynamics are lifted with preserving the induced L₂ norm of the closed-loop and a parameter varying controller is obtained by solving an optimization problem subject to Linear Matrix Inequalities (LMIs). Numerical example underlines the validity of the proposed approach with respect to tracking performance compared to the traditional discrete design.