Simulation research of injection strategies on dual-pressure common rail diesel engine

In order to achieve the high diesel fuel economy and low emissions, the paper researched in different fuel injection strategies on real-time control of the HCCI combustion process of diesel engines. Simulation results showed that the scheme 2 had well fuel economy and emissions performance. So it can be concluded that the strategy that pre-injection used low pressure, while the main jet used high pressure was a good solution to the the contradiction between collision of fuel and the cylinder wall and the quality of fuel atomization.