Automotive Distributor

The distributor is divided into two parts: low voltage and high voltage

The low voltage part provides signals to the primary coil of the ignition coil, and the high voltage part distributes the high voltage power sent from the secondary coil of the ignition coil to each cylinder through the distributor head. The distributor is driven by the camshaft, and once the gas distribution timing and ignition timing are determined, the distributor will work according to the pre-designed ignition sequence, for example, four cylinders are generally 1342 six cylinders are 153624

Early distributors The low-voltage part of the low voltage part of the low voltage depends on the on-off of the platinum to drive the primary coil of the ignition coil, but due to the angle of closure can not be adjusted, and there is no constant current and other controls, phased out, and then appeared by the electromagnetic Sensor or Hall sensor to replace the platinum, from the sensor to provide ignition signals to the igniter, the igniter drive ignition coil, the igniter to achieve the angle of closure and constant current control. Later, the emergence of EFI vehicles, the use of sensors in the distributor as crankshaft and camshaft sensor signals, provided to the ECU, the ECU to the ignition signal to drive the ignition coil, such as the above are the models with a distributor, the distribution of high-voltage power is still dependent on the distributor to complete

Later completely abolish the distributor, the crankshaft position sensor and camshaft sensor timing signals, ECU The ECU calculates the timing signals from the crankshaft position sensor and camshaft sensor, and then drives the ignition coils for each cylinder to complete the ignition!

Nowadays, the distributor has been completely eliminated from the engine, which is now invisible to the engine, and the ignition is realized by more sophisticated sensors and ECUs!