9-1-opisanie-sistemy.html
9.1. Description of system
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Fig. 9.1. Control system of the Fenix 5.1 engine: 2/14 — the system relay of the engine; 3/1 — the ignition switch; 4/1 — the block of system management of the Fenix 5.1 engine; 6/13 — the fuel pump; 7/15 — the heated sensor of oxygen (HO2S); 7/21 — the RPM meter (RPM) of the petrol engine;
7/22 — the sensor of absolute pressure in a collector (MAR sensor); 7/23 — the sensor of temperature of cooling liquid of the engine (EST); 7/24 — the sensor of temperature of entrance air; 7/25 — the sensor of provision of a butterfly valve; 7/26 — the sensor of a detonation (KS); 7/27 — the sensor of position of the camshaft; 8/2 — the regulator of idling (IAC); 8/6, 8/7, 8/8, 8/9 — nozzles; 8/12 — the valve of a purge of the coal filter (SR); 10/51 — a precautionary lamp of temperature of exhaust gases; 11/2 — the block of safety locks in passenger salon; 24/20 — the 22-contact socket of a plait of passenger salon (C), a plait of a compartment of the engine (A) (gray); 24/23 — the 22-contact socket of a plait of passenger salon; 24/27 — the 12-contact socket of a plait of a compartment of the engine
(A) — a plait of the module of engine management (ESM); 24/33 — the 4-contact socket of a plait of the module of engine management (unified social tax) (B) (Q); 31/25 — a ground contact under the dashboard
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In fig. 9.1 the arrangement of sensors of a control system of the Fenix 5.1 engine is shown.
The electric circuit of connection of elements of the Fenix 5.1 system is shown on a color tab.
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Fig. 9.2. Appearance of other sockets of the Fenix 5.1 system and approximate places of their arrangement on the car
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In fig. 9.2 appearance and an approximate arrangement of other sockets of engine management of Fenix 5.1 are shown.
The electric circuit of connection of sockets is shown on a color tab.
The Control Unit (CU) of system 4/1 (fig. 9.1) accepts the entrance signals from the following sensors and components of the engine characterizing conditions of its work:
— the signal of the frequency of rotation and the provision of a bent shaft arriving from the sensor 7/21 of frequency of rotation and the provision of a bent shaft;
— a signal of a running cycle of the cylinder from the sensor 7/27 of position of the camshaft.
— a signal of vacuum in the inlet pipeline from the sensor of pressure 7/22;
— a signal of temperature of the soaked-up air from the sensor of air temperature 7/24;
— a signal of engine temperature from the sensor 7/23 of temperature of cooling liquid of the engine;
— a signal of the provision of a butterfly valve from the sensor 7/25 of provision of a butterfly valve.
— a signal of the mode of combustion of mix from the oxygen sensor 7/15.;
— a signal of a detonation from the detonation sensor 7/26;
— a signal of the choice of the mode of air conditioning from the control panel of a microclimate;
— a signal of functioning of the compressor of the conditioner of air from pressure switch;
— a signal of pressure in the air conditioning system with the relay of high and low pressure;
— a signal of the transfer choice (only for the automatic transmission) with BU the transmission;
— a signal of the translation of the lever of the selector of transfers to the provision of P or N (on cars from the automatic transmission) with BU the transmission;
— a signal of the speed of the movement from a combination of devices.
On the basis of these signals of BU operates the following processes and mechanisms:
— injection of fuel by means of management of each nozzle individually;
— ignition by means of giving of signals on the switchboard which is executed as a single whole with the ignition coil. Rotation frequency idling by means of the idling regulator;
— the fuel pump, by means of the relay of the fuel pump. Main relay. Indicator lamp of failures;
— the electric fan of cooling, by means of the fan relay.
BU can switch-off (in case of need) the air conditioner compressor by means of the compressor relay. BU also transmits the following signals:
— a signal of confirmation of management of torque by means of reduction of a corner of an advancing of ignition by BU the transmission;
— signals of the frequency of rotation and load of BU transmission;
— a signal of opening of a butterfly valve on BU the automatic transmission.
— a signal of the frequency of rotation of the engine on the tachometer placed in a combination of devices.
— a signal of engine temperature on a combination of devices. A signal on diagnostics block socket with a conclusion of codes of malfunctions.
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