Research of the Dynamic Properties of a Diesel Locomotive when Using Variable Geometry Turbine
At present, when modern fuel supply systems and control systems with electronic units are used on diesel engines, the main means of improving the dynamic properties of diesel engines is controlled boost. For diesel locomotives, register turbocharging and the use of variable geometry turbine are effective methods of intensifying the operation of turbochargers. A study of the possibilities of improving the dynamic properties of the diesel locomotive D500 with the use of controlled boost by the calculation method at the stand of Hardware-in-the-Loop modeling, where a computer model of the diesel engine was interfaced with a full-scale model of the integrated adaptive control system developed at the Bauman Moscow State Technical University. The mathematical model of diesel provided the calculation of the parameters of the workflow in real time. The results of modeling transient processes using register boost register turbocharging and variable geometry turbine are presented. The analysis of the obtained results is carried out. The effect on the type of transient processes of pneumatic correction of fuel supply by the excess air coefficient is shown.