3.4.2. Compound system of ignition (ignition / fuel system)
On all models, except L3.1 and LU2, the system of ignition is combined with system of injection of fuel and copes from one ECU block.
Bosch Motronic ML4 systems. l and Fenix IB have a cover of the distributor and a rotor for distribution of a spark of ignition to cylinders (together with the ordinary coil of ignition).
All other models use the system of ignition consisting only of two coils of ignition. The ignition coil actually consists of two separate windings which give a spark to two cylinders everyone (one to cylinders 1 and 4, and another to cylinders 2 and 3). The impulse of ignition moves on two spark plugs for each cycle of the engine at once, one on a step of compression and one on an exhaust step – the ignition spark on a step of an exhaust has no value for operation of the engine therefore it is spent for nothing. ECU uses entrances from various sensors to calculate the required installation of an advancing of ignition and time of accumulation of energy in the ignition coil.
On some models the sensor of a detonation is switched on in system of ignition. The sensor is installed on a head of the block of cylinders and prevents a detonation in cylinders under loading. The sensor is sensitive to vibration and finds a detonation which occurs when fuel mix in cylinders burns down with a detonation. The sensor of a detonation sends an electric signal to the ECU block which, in turn, reduces installation of a corner of an advancing of ignition while the detonation does not stop.