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UDC 621.389

MATHEMATICAL MODEL OF FUEL INJECTION CONTROL SYSTEM OF INTERNAL COMBUSTION ENGINE

T. S. Valova, lecturer of the Department of Mathematical and natural Sciences, Ryazan Higher Airborne Command School, Ryazan; This email address is being protected from spambots. You need JavaScript enabled to view it.
Y. V. Garmash, PhD (technical sciences), professor of the Department of mathematical and natural Sciences, Ryazan Higher Airborne Command School, This email address is being protected from spambots. You need JavaScript enabled to view it.

In the article the mathematical model of construction and elements of the control system of fuel injection, allowing to adjust the response time of high-speed nozzles depending on the operating mode of the internal combustion engine are considered. The aim of the study is to assess theoretical ways to improve the performance of control system for an internal combustion engine to reduce response time of solenoid injectors. Dosing the amount of fuel depends on the duration of electric pulse supplied to the winding of solenoid injectors by electronic control system and affects the ecology of the environment. The duration of injector control electrical pulse is calculated by the microcontroller of the electronic system of engine control module (ECM) based on signals of sensor values of throttle opening, air temperature, engine temperature, engine speed, load, and other sensors. Stability of indicators of the injector is largely determined by the performance of its valve. For this reason, when designing high-speed electromagnets reducing response time and time of the release is said to be a high priority. 

Key words: mathematical model, control system, internal combustion engine, fuel injection system, performance, spray nozzle, converter parameters of electric energy, response time of the injector, exhaust gas toxicity.

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