Abstract
Fuel pressure in the common-rail diesel system directly affects engine power and emissions, independent fuel injection pressure control with engine speed is one of the potential solutions to investigate the influences of injection pressure on engine power and emissions. This paper studies the establishment of a control system that provides high-pressure fuel injection with a pressure range from 400bar to 1600bar to simulate fuel pressure of the 2nd generation common-rail system. The research results show that the system controls and provides precise fuel injection pressure in the designed pressure range, flexible design and high potential of application in the practical situation.
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