DIESEL-RK is an engine simulation software. Simulation and optimization of combustion and mixture formation in diesels. Nitrogen oxides NO, soot and particles formation modelling. Common Rail control algorithm development. Turbocharging, supercharging, EGR. Thermodynamic analysis. Valve timing optimization. Bauman Moscow State Technical University (BMSTU).

Diesel-RK in Telegram

Common Rail controlling algorithm development

2D scanning maps: Optimization of Common Rail Injection Duration f_i and Injection Timing q_i in view of limitation (p_max < 130 bar; p_inj max < 1650 bar).

Goal function is Summary Emission (SE) of PM and NOx.
Allowable area is yellow filled.
Optimal area with minimum emission level SE is blue-green filled.
Selected point for controlling algorithm forming is marked with black rhomb.
Injection pressure p_inj is a pressure before nozzles.

	Mode: Full load RPM=4000, m_f = 93% Allowable area has not common site with optimal area. Optimal solution is point formed by crossing lines of p_max=130 bars and p_inj=1650 bars. This point is near to optimal area.
	Mode: RPM=4000, m_f = 57% Optimal area has common site with allowable area. Limit of max. cyl. pressure is not critical. The acceptable SFC can be achieved with injection pressure 1500 bars, maximal injection pressure is not required.
	Mode: RPM=4000, m_f = 29% Optimal area lies inside allowable area. Low emission level area is matched with low SFC area.
	Mode: Max. torque, RPM=2200, m_f = 100% Optimal area SE _min has common site with allowable area. Limit of max. cyl. pressure is critical. High injection pressure is not required.
	Mode: RPM=2000, m_f = 32% Optimal area lies inside allowable area. Operating point is selected inside low emission level area, near with low SFC.
	Mode: Idling RPM=800, m_f = 15% Optimal area lies inside allowable area. Operating point is selected inside low emission level area, near with low SFC.

Return to page "Common Rail controlling algorithm..."