Hyundai Elantra
Petrol engines 1,6, 1,8 and 2,0 l
The diesel engine of 2,0 l
Greasing system
Cooling system
- Fuel system
    Fuel system of petrol engines
   - Fuel system of diesel engines
      The general data on injection system Common Rail
      Characteristics of system of injection
      Control injection of fuel
      The main injection of fuel
      Additional injection of fuel
      Reduction of toxicity of the fulfilled gases
      Fuel system Common Rail
      Control system EDC
      Management of a maximum quantity of air arriving in the engine
      The active shock-absorber reducing fluctuations of frequency of rotation of a cranked shaft of the engine
      Engine deenergizing
      Candles накаливания
      Removal and atomizer installation
      Installation of the fuel pump of a high pressure
      Measuring instrument of the expense of air (Air flow sensor – AFS)
      The gauge of temperature of a cooling liquid (ECT)
      The gauge of position of a camshaft (CMP)
      The gauge of an angle of rotation of a cranked shaft
      The gauge of pressure of fuel in the high pressure accumulator (RPS)
      The gauge of temperature of fuel (FTS)
      The valve of adjustment of pressure
      Search and elimination of malfunctions
Monitoring systems and decrease in toxicity of the fulfilled gases
Ignition system
System of preliminary heating of the diesel engine
Mechanical transmission
Automatic transmission
Power shafts, forward and back axes
Suspension bracket
Brake system
Air central air
The electric equipment
Electric schemes


ECU estimates the signals received from external gauges, and limits to their admissible level of pressure.
On the basis of the entrance data and the characteristics which have been written down in memory of the microprocessor, ECU calculates time and the moment of injection of fuel and transforms these parametres to target signals which are used for management of fuel atomizers. Besides, target signals also are used for management of various elements and systems, such as a system drive рециркуляции the fulfilled gases, management of the relay of the fuel pump, the fan of a radiator, preliminary heating of the engine and air central air. Executive mechanisms are protected from short circuit and breakage of an electric chain, thus any damages register in memory of the microprocessor. Many target signals are used in other systems of the car.

The greatest loading for the weekend cascades ECU render fuel atomizers. The current of the target cascade creates a magnetic field which is put to a part of an atomizer with the fuel which is under a high pressure in the solenoidal valve of an atomizer. For maintenance of exact quantity of injected fuel atomizer opening should occur very quickly that demands giving ECU of a high voltage. The chain of management of a fuel atomizer has two phases: the phase of opening characterised by consumption of the big current, and the phase of deduction characterised by consumption of a small current.

ECU meets high requirements rather:

– Influences of the surrounding temperature in limits–40... 85C;
– Stability to influence of fuel and lubricants;
– Stability to moisture influence;
– Mechanical loadings.

ECU also possesses electromagnetic compatibility (EMC) and has low level of radiated hindrances.