摘要
This paper presents an H_∞ control scheme for gasoline engines based on a mean-value model. First, a linearized model based on a mean-valve nonlinear model of the engines is proposed that represents dynamical behavior under the multiinput excitation of the fuel injection and the throttle opening around an operating condition. Then, for the feedback control system to regulate of the speed and the air-fuel ratio, the mixed sensitivity function shaping method is applied to the feedback controller design. Furthermore, the parameter identification of the linearized model is shown with experiment results obtained on a full-scale engine transient control testbench. With the identified model, the frequency property and the time response of the control system is demonstrated by numerical simulation.
This paper presents an H_∞ control scheme for gasoline engines based on a mean-value model. First, a linearized model based on a mean-valve nonlinear model of the engines is proposed that represents dynamical behavior under the multiinput excitation of the fuel injection and the throttle opening around an operating condition. Then, for the feedback control system to regulate of the speed and the air-fuel ratio, the mixed sensitivity function shaping method is applied to the feedback controller design. Furthermore, the parameter identification of the linearized model is shown with experiment results obtained on a full-scale engine transient control testbench. With the identified model, the frequency property and the time response of the control system is demonstrated by numerical simulation.
引文
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