Common Rail, compression-ignition engine, accumulator fuel injection system

This paper is devoted to modern injection systems for compression-ignition engines. The paper presents the construction and operating principle of the Common Rail system and presents a computer simulation of the operation of a compression-ignition engine injection system. The simulation using the LabView environment allows for visualizing the operation of the EDC controller. The displayed injection times and the number of fuel injections depending on the engine operating conditions allow for explaining the method of controlling a modern power unit used in passenger vehicles.The dynamic development of automotive technology in recent decades has made electronic components and systems a daily occurrence in today’s cars. This trend causes subsequent vehicle components to be replaced by their electrical counterparts. For the first time, a diesel engine was used to power a truck in 1927, and just a few years later, in 1936, Mercedes-Benz presented the first passenger car with this engine. In commercial vehicles, the CI engine became widespread due to its economy and durability, while in passenger car applications, it long remained in the shadow of the spark-ignition engine. These engines, popularly known today as “diesels,” are undergoing constant development. This applies in particular to turbocharging systems and fuel supply systems. Only turbocharged direct-injection diesel engines became widely spread as a power source in passenger cars. Technological development has led to the fact that over the last few decades we can observe a significant improvement in the performance indicators of CI engines. The specific power of a compression-ignition engine obtained from one liter of displacement has increased almost 3-fold from the moment production began to the present day. (…)

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