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The face of increasingly serious energy crisis and environmental pollution , to find the ways of the internal combustion engine of sustainable development in the automotive industry is increasingly necessary . The rapid development of the diesel engine , the fuel injection system is a key research and application . The development of the diesel engine fuel injection system already into the third generation of the electronic control - electronically controlled common rail fuel injection system . Now abroad in diesel engines commonly used electronic control technology and electronic control common rail injection technology into the practical stage , and made ??significant economic benefits . At the same time a strong impetus to the further development of the diesel engine electronic control system , the control function more whole, more reliable new products has not poor . In China, the car is quite a slow pace of development of the diesel engine , electronic injection technology is just beginning , and the common rail is at an experimental stage , some engine common rail system is imported from abroad . To resolve the issues of sustainable development of the diesel engine technology in China 's electronic control , electronically controlled common rail injection technology is imperative . In this paper, based on the theory of diesel fuel injection , and analysis of the mechanism and process of development of electronically controlled fuel system , focus on diesel engine electronic control common rail type fuel injection system . In this paper, the high-pressure common-rail fuel system as the research object , combined with PID technology , the traditional control theory and intelligent control , fuzzy and neural network design of system control programs , and ultimately get the fuel injection quantity, injection timing , common rail pressure and other major control variable control strategy . The injection volume, injection timing and common rail pressure check the MAP , and temperature and intake pressure correction . Finally, the entire electronic control system , the use of oil - based control strategy , dividing the running state of the high-pressure common-rail diesel engine , the simulation model in Matlab / Simulink , and simulation analysis . The results show that this control strategy to achieve a stable control common rail pressure and precise control of fuel injection quantity , injection timing goal , and at the same time meet the requirements for diesel engines quick start and smooth operation .
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