Improvement of the internal combustion engine control system

The principle of regulation of the composition of the fuel mixture for powering the engine with the use of electronic microprocessor systems is developing. The proposed solution helps to improve the fuel and economic indicators of ICE and to reduce the concentration of harmful substances in the exhaust gases. The basis for constructing the automatic control system is the principle of precise regulation of the combustible mixture, depending on the presence of free oxygen and a higher degree of purification of the exhaust gases. A structural diagram and a computer model of the control system with a level element is presented, on the principle of reverse hysteresis and the results of its computer simulation in the Matlab environment. Modeling of control processes was carried out using a level element with a conventional and reverse hysteresis. According to the results of mathematical analysis of the achieved results, the transmission characteristic of the level element and the structural diagram of the regulator are justified.