FIELD: motors and pumps.
SUBSTANCE: invention relates to engine engineering and particularly to methods used to control internal combustion engines (ICE) operation with distributed fuel injection. According to the invention the above mentioned method allows for increasing accuracy of ICE operation control when phase sensor is unavailable due to phased injection start attribution to engine start mode. Method of ICE operation control includes ICE start mode, after-start mode of ICE operation and phase determination of ICE operation duty cycle. ICE is provided with electronic control system including crank shaft position sensor, microcomputer-based controller, fuel injectors and inductor coils. The described method provides for selecting ICE cylinder, conducting test fuel injection into the selected cylinder, igniting air and fuel mixture in the selected cylinder and determining working stroke of the selected cylinder and working duty cycle phase based on engine reaction. The working duty cycle phase is determined in ICE start modes. For this purpose ICE crank shaft is brought to rotation by starter. Then fuel is injected in testing mode into the selected ICE cylinder, which is next in engine operation sequence. Consequently air and fuel mixture is ignited in the above cylinders. Fuel is injected into the remaining cylinders after the phase of ICE working duty cycle is determined while ICE is transmitted into the after-start operation mode.
EFFECT: improved accuracy of ICE operation control when phase sensor is unavailable due to phased injection start attribution to engine start mode.
2 cl, 9 dwg
