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A non-linear model is set up for engine transient operating condications. Both sliding model control-ler and PID control-ler are desined to realize adaptive regulation of throttle opening and ignition timing respectively. The results of simulation on engine idling show that the amplitude of engine speed fluctucation is less than 6 r/min, indicating that the non-linear model built is appropriate for...
In this paper, a quasi-dimensional turbulent combustion model for SI engines was thoroughly studied. The fractal expression of the turbulent flame speed was incorporated into the combustion model. The research reveals that the Gibson scale is more applicable than the Kolmogorov scale. As a phenomenal description of combustion process, the fractal is also an effective tool.
Gasoline engine transient conditions oil film dynamic would effect on air fuel ratio. The Elman neural network was used to identify the parameters of oil film, and the gasoline engine oil film transient compensator model was established by Simulink. Based on MotoTron rapid prototyping Development Platform, oil film compensator model strategy transplantation, download and calibration test that were...
The rapid prototyping development technology for the transient throttle controller based on the Motohawk development platform was introduced. The mathematical model was set up for the transient throttle controller. Based on it, a PID control algorithm was proposed and verified in MATLAB/SIMULINK. A rapid prototyping development platform was built up using MotoTron technology. The precise control was...
Testing on the the AJR-type gasoline Santana 2000 sedan, processed and analyzed experimental data obtained from two acceleration transient operating conditions that one is increasing speed and constant torque, another is constant speed and increase the torque. Compared with the corresponding steady-state conditions, summed up the burning regulation of the gasoline engine at the transient operating...
Combustion modeling is a very important method in designing internal combustion engine. In this paper, a multi-zone one with diagnostic and predictive functions is proposed for combustion in a gasoline engine. This model has been used to predict the performances and their changing with variable parameters such as ignition advance angle and coefficient of the residual exhaust gas respectively, in a...
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