THE IGNITION SYSTEM OF A PETROL-ENGINED VECHLE

The ignition system of a petrol-engine vehicle

The ignition system of a petrol-engine vehicle

System in an internal combustion engine, which initiates a chemical reaction between fuel and air into the cylinder charge by producing a spark. Ignition system for multi-cylinder internal combustion engine has three main functions: (1) to provide sufficient energetic spark to initiate combustion of the fuel-air mixture in each cylinder (2) to control the ignition for optimum efficiency so that the cylinder pressure reaches its maximum value shortly after the piston reaches the top of its compression stroke, and (3) to select the correct cylinder is fired.

In an inductive ignition system, there are three possible types of control vacuum-mechanical, electric spark, or a full electronic engine. Before the spark, the electric energy stored in the inductance of the coil primary. Coil current of primary winding turns on and off for ignition module in response to a signal trigger spark timing. The time marks the beginning of the sparkle off the event. Accurate Schedule spark timing is a complex function of many variables, engine, such as the composition of the fuel-air, engine rpm per minute (RPM), temperature, cylinder pressure, exhaust gas recirculation, the knock tendency, and engine design.

Ignition coil stores electrical energy during their stay in it (talk to) period and acts as a transformer at the end stop by converting low-voltage high-current energy stored in the primary to the high-low-power energy in the secondary. Distributor chooses fired the spark plugs from the positioning of the rotor opposite the terminal connected to one spark plug. Plug depends on the cylinder of the order of dismissal, which in turn depends on engine design. Distributor can be found on half the engine speed from the camshaft. See also the spark plugs.

When a high ...