![]() ![]() For interactive parameters, the absolute values for all the correlation coefficients are less than 0.1. The correlation coefficients for the other parameters are all relatively small. The absolute values of their correlation coefficients are between 0.77 and 0.87, between 0.22 and 0.43 and between 0.14 and 0.26 respectively. And the results show that the diameters of high-pressure fuel tube (HPFT), small and big ends of pressure amplification piston (PAP) are the key single parameters. For the maximum deviation between the calculated and predicted fuel injection quantity is only 4.27%, the prediction models could be used for further analysis. Considering the high calculation cost of the simulation model, the prediction model between the fuel injection quantity and the structural parameters for each working condition is obtained based on D-optimal design of experiments and the response surface methodology in this article. The correlation analysis is performed to illustrate the effects of single parameters and the interactions between different parameters on the fuel injection quantity. The accuracy of the model is validated in view of fuel injection quantity and system pressures. ![]() ![]() In order to demonstrate the relationship between the fuel injection quantity and the structural parameters of the fuel system for large marine diesel engines, an AMESim model of a double-valve controlled fuel system is proposed. The results of the experiments are presented and the promising effectiveness of the proposed approach is discussed. Using the proposed approach here, the closing profiles of the reference signals were refined according to the admittance time of the solenoid actuator and the optimal closing profile signals were selected based on performance comparisons with the baseline. This study also offers a new way to optimize the settling time of the injector systems, while ensuring soft landing. The effectiveness of this approach is based on the observed negligible position and velocity errors between the estimated and actual measurements. Using the Hammerstein-Wiener modeling method and a super-twisting sliding mode controller this new approach replicates the dynamics of the injector and tracks specially designed position reference signals to achieve soft landing. This study offers a novel sensorless position tracking approach with which impact noise can be reduced and mechanical wear and tear can be minimized. As a result, it becomes impossible to control the motion of the moving parts within injectors in closed-loop. Physical sensors are not preferred to be used in injectors in order to increase reliability and reduce cost. soft-landing) for solenoid-based injector systems which are widely used in automotive as fuel injection valves or gas exchange valves of internal combustion engines to spray various fluids. This article presents an open-loop control methodology to achieve lower seating velocities (i.e. ![]()
0 Comments
Leave a Reply. |
Details
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |