Fuel system diagram
1 – tank with activated carbon; 2 – electromagnetic valve of the activated carbon tank; 3 – suction pipe; 4 – low pressure pipeline; 5 – pressure regulator; 6 – fuel bypass line; 7 – fuel pump; 8 – fuel tank; 9 – fuel filter; 10 – fuel supply line; 11 – fuel distributor; 12 – injectors
The 1.6–55 kW (AEE) engine is equipped with electronically controlled multi-point fuel injection (MPI) 1 AV. This system has a self-learning management program. The amount of intake air is calculated based on the air pressure and temperature in the intake pipe and the engine speed. The amount of fuel is set depending on the required mixing ratio. Sensors (sensors) of the system allow you to adjust the initial adjustment in accordance with the operating conditions of the engine.
The signal about the moment of ignition of the mixture and the number of engine revolutions comes to the system from the Hall sensor, located on the ignition distributor. The distributor is directly connected to the camshaft. Until the engine control unit (hereinafter CU) does not receive a signal from the Hall sensor, the engine cannot be started.
The UU system determines the top dead center of the first cylinder by statically evaluating four holes, from where signals are sent to the sensor. One hole is wider than the other three. From this moment, sequential distribution of injection in the order of cylinders and, similarly, ignition occurs. Here, selective adjustment of ignition advance is also provided, preventing detonation combustion (and thus from the knocking in the engine).