Modeling of the Impact of Dynamic Modes of a Diesel Engine on the Indicators of Toxic Emissions of Exhaust Gases

V.A. Leshchev

The influence of dynamic modes in the system of automatic control of the rotational speed of a diesel engine with a turbocharger and a polynomial of exhaust gases on some components of toxic emissions is investigated. For this purpose, a research virtual stand, implemented on the VisSim software, was used. The efficiency of the stand was shown and the results of the study of the influence of transient processes in the automatic control system of the diesel engine rotational speed, containing fuel injection pump units, a turbocharger and the VisSim “Polynomial ЕG” block developed for research, on toxic emissions indicators were obtained. It was revealed that the dynamic modes of operation of a diesel engine have a significant impact on only two of the four exhaust gas components. A change in the rotational speed of a diesel engine, along the channel of the driving force, leads to an increase in only one component of the emission of carbon monoxide. Dynamic modes arising in the channel of disturbing effects, give a transition process that flows smoothly without overshoot with the lowest possible values. The ways to optimize ATS to reduce diesel engine exhaust air pollution in dynamic operation modes are proposed.

Volume 11 | 11-Special Issue

Pages: 1111-1117

DOI: 10.5373/JARDCS/V11SP11/20193142