VW Passat B5

since 1996 release

Repair and operation of the car

Foltsvagen Passat B5
+ Maintenance instruction
+ 1. Maintenance
+ 2. Engines
+ 3. Cooling system
+ 4. Fuel system
- 5. Engine management
   5.2. Work of a control system of the engine
   5.3. Check of system of injection of fuel
   5.4. Sensors and executive mechanisms of a control system of the engine
   - 5.5. System of ignition
      5.5.1. System of direct ignition (except engines 1,6-I ADP)
      5.5.2. System of ignition with the distributor of ignition (engine 1,6-I ADP) Ignition distributor
   + 5.6. Fuel highway and fuel nozzles
   5.7. Main malfunctions of a control system of the engine
+ 6. Exhaust system
+ 7. Transmission
+ 8. Running gear
+ 9. Steering
+ 10. Brake system
+ 11. Body
+ 12. Heating, ventilation
+ 13. Electric equipment

5.5.2. System of ignition with the distributor of ignition (engine 1,6-I ADP)


It is contactless system of ignition. Instead of the breaker the distributor of ignition is supplied, not demanding leaving, with Hall's sensor. The sensor is contactless, microelectronic, it is based on use of effect of Hall. This effect consists in emergence of cross electric field in a semiconductor plate with current at action on it magnetic field. The sensor consists of a permanent magnet, a plate of the semiconductor and a chip. Between a plate and a magnet there is a gap. In a gap of the sensor there is a steel screen with cuts. When through a gap there passes the screen cut, the plate of the semiconductor is affected by magnetic field and from it the potential difference is removed. If in a gap there is a screen body, then magnetic power lines become isolated via the screen and do not affect a plate. In this case the potential difference on a plate does not arise. On the basis of signals of the sensor of Hall, the block of ignition includes or switches off current in primary winding of the coil of ignition.

The control unit of ignition contains the ignition coil, a control system of the coil of ignition and system of restriction of power in one case.