Ignition system with ignition distributor (1.6-I ADP engine)

This is a non-contact ignition system. Instead of an interrupter, the ignition distributor is equipped with a maintenance-free Hall sensor. The sensor is non-contact, microelectronic, based on the use of the Hall effect. This effect consists in the appearance of a transverse electric field in a semiconductor plate with a current under the action of a magnetic field on it. The sensor consists of a permanent magnet, a semiconductor wafer and a microcircuit. There is a gap between the plate and the magnet. In the gap of the sensor there is a steel screen with slots. When a screen slot passes through the gap, a magnetic field acts on the semiconductor plate and the potential difference is removed from it. If the screen body is in the gap, then the magnetic lines of force are closed through the screen and do not act on the plate. In this case, there is no potential difference across the plate. Based on the signals from the Hall sensor, the ignition unit turns on or off the current in the primary winding of the ignition coil.

The ignition control unit contains an ignition coil, an ignition coil control system and a power limiting system in one housing.