2.8.1. Electronic control system

Fig. 2.270. Information sensors of the control unit another: 1 – the sensor of absolute pressure in an inlet collector; 2 – sensor of provision of a butterfly valve; 3 – the air temperature sensor on an admission; 4 – eats sensor; 5 – the oxygen sensor with heating 1 (if it is equipped); 5–1 – the oxygen sensor with heating 2 (if it is equipped); 6 – car speed sensor; 7 – transmission range switch (automatic transmission); 8 – rechargeable battery; 9 – sensor of provision of a cam-shaft; 10 – sensor of position of the crankshaft; 11 – the fuel level sensor (in the fuel tank); 12 – switch of signals of braking; 13 – the detonation sensor (if is available); 14 – the sensor of pressure of the hydraulic booster of the steering mechanism (if is available); And – a fuel nozzle; B – valve of a purge of the filter of system of catching of vapors of gasoline; With – the relay of the fuel pump; D – the valve of recirculation of the fulfilled gases (the step engine) (if is available); E – indicator lamp of malfunction; F – ignition coil; G – relay of management of the fan of a radiator No. 1; H – relay of management of the fan of a radiator No. 2; I – relay of management of the fan of a radiator No. 3; J – idling regulator; To – an indicator lamp of an immobilizator; A – electronic control unit; In – the main relay; C – filter of system of catching of vapors of gasoline; D – diagnostics socket; E – communication channel socket; F – temperature sensor on an entrance of the evaporator of the air conditioning system (if is available); G – temperature sensor at the exit of the evaporator of the air conditioning system (if is available); H – relay of the compressor of the air conditioning system; I – relay of the fan of the condenser of the air conditioning system; J – TSM

The electronic control system consists of (1) various sensors which define a condition of the engine and traffic conditions, (2) electronic control units which operates various devices according to signals from sensors, and (3) various operated devices. Functionally, the system is divided into nine subsystems:

– control system of fuel injection;

– control system of the frequency of rotation of the engine idling;

– control system of the fuel pump;

– a control system of air conditioning (if is available);

– radiator fan control system;

– system of recirculation of the fulfilled gases (if is available)

– system of decrease in toxicity of the fulfilled gases;

– a control system of the heater of the sensor of concentration of oxygen (if is available)

– control system of ignition.

Besides, for models with the automatic transmission, the electronic control unit transmits signals of an angle of opening of a butterfly valve and temperature of cooling liquid to the control unit of the transmission which operates the automatic transmission.

Fig. 2.271. Schematic diagram of a control system

In fig. 2.271 are designated:

1 – sensor of position of the crankshaft;

2 – sensor of provision of a cam-shaft;

3 – car speed sensor;

4 – the sensor of absolute pressure in an inlet collector;

5 – the detonation sensor (if is available);

6 – sensor of provision of a butterfly valve;

7 – eats sensor;

8 – the air temperature sensor on an admission;

9 – the oxygen sensor with heating 1 (if is available);

10 – the oxygen sensor with heating 2 (if is available);

11 – temperature sensor at the exit of the evaporator of the air conditioning system;

12 – temperature sensor on an entrance of the evaporator of the air conditioning system;

13 – the fuel level sensor (the car with an indicator lamp of an immobilizator);

14 – TCM (automatic transmission);

15 – transmission range switch (automatic transmission);

16 – module of management of anti-blocking system of brakes;

17 – WITH - a potentiometer (if is available);

18 – heater fan electric motor;

19 – heater fan switch;

20 – switch of the air conditioning system;

21 – sensor of pressure of the air conditioning system;

22 – relay of the fan of the condenser of the air conditioning system;

23 – electric motor of the fan of the condenser of the air conditioning system;

24 – relay of the compressor of the air conditioning system;

25 – magnetic coupling of the compressor of the air conditioning system;

26 – the steering pressure sensor with the amplifier;

27 – generator;

28 – the module of management of an immobilizator (if is available);

29 – communication channel socket;

30 – fuel nozzle No. 1;

31 – fuel nozzle No. 2;

32 – fuel nozzle No. 3;

33 – fuel nozzle No. 4;

34 – idling regulator;

35 – valve of a purge of the filter of system of catching of vapors of gasoline;

36 – relay of the fuel pump;

37 – fuel pump;

38 – radiator fan relay;

39 – radiator fan electric motor;

40 – the valve of recirculation of the fulfilled gases (if is available);

41 – indicator lamp of malfunction;

42 – combination of devices;

43 – I will corrode diagnostics (cars without indicator lamp of an immobilizator);

44 – coil of ignition (cylinders No. 1 and No. 4);

45 – coil of ignition (cylinders No. 2 and No. 3);

46 – switch of signals of braking;

47 – braking signals;

48 – lighting switch;

49 – situation lamp;

50 – switch of a heater of back glass;

51 – heater of back glass;

52 – ignition switch;

53 – main relay;

54 – transmission range switch (automatic transmission);

55 – starter;

56 – screened wire;

57 – main fuse;

58 – barometric sensor of pressure;

59 – an indicator lamp of an immobilizator (if is available);

60 – the tire of connection of the engine with "mass" of a body;

61 – mass of a body

Fig. 2.272. Conclusions of the socket of an electronic control unit of the engine