Common rail injection systems of compressed natural gas (CNG) engines require robust control, because of large variations in their parameters and working conditions and because of their highly nonlinear behavior. This paper shows that a noninteger (fractional) order PI (or FOPI) controller, designed by a loop-shaping approach, improves robustness to parameter variations and guarantees an optimal performance. Efficacy of the FOC is tested by simulation based on a CNG linearized model and on the approximation of the FOC by a rational transfer function.
Fractional order control of the injection system in a CNG engine / Lino, Paolo; Maione, Guido. - ELETTRONICO. - (2013), pp. 3997-4002. (Intervento presentato al convegno 12th European Control Conference, ECC 2013 tenutosi a Zürich, Switzerland nel July 17-19, 2013) [10.23919/ECC.2013.6669420].
Fractional order control of the injection system in a CNG engine
Paolo Lino;Guido Maione
2013-01-01
Abstract
Common rail injection systems of compressed natural gas (CNG) engines require robust control, because of large variations in their parameters and working conditions and because of their highly nonlinear behavior. This paper shows that a noninteger (fractional) order PI (or FOPI) controller, designed by a loop-shaping approach, improves robustness to parameter variations and guarantees an optimal performance. Efficacy of the FOC is tested by simulation based on a CNG linearized model and on the approximation of the FOC by a rational transfer function.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
