S40/V40
1. General information
2. Operation and maintenance of the car
3. Design and technical characteristics of engines
4. Repair of the engine
5. Transmission
6. Brake system
7. Forward suspension bracket and steering
8. Back suspension bracket
9. Control system of the Fenix 5.1 engine
9.1. Description of system
9.1.1. Sensors of pressure and air temperature
9.1.2. Oxygen sensor
9.1.3. Sensor of position of the camshaft, frequency of rotation and provision of a bent shaft
9.1.4. Sensor of temperature of cooling liquid and detonation
9.1.5. Sensor of provision of a butterfly valve
9.1.6. Management of fuel system
9.1.7. Management of system of ignition
9.1.8. Idling regulator
9.1.9. Control of the cooling system fan
9.1.10. Control of the air conditioner compressor
9.1.11. Output signals of the control unit
9.2. Diagnostics
10. Electric equipment. Conducting and components
11. Body
12. Schemes of electric equipment
 



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9.1.3. Sensor of position of the camshaft, frequency of rotation and provision of a bent shaft

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


The sensor of position of the camshaft 7/27 (fig. 9.1) turns on the generator of Hall which signals allow BU to define a running cycle in various cylinders. The rotor of the sensor rotates with the same speed, as the camshaft. With BU the entrance signal of 5 V is given on Hall's generator. When the window in a rotor settles down opposite to Hall's generator, the entrance connects to "weight" and tension of an output signal becomes equal 0 Century. When Hall's generator is shielded by a rotor, tension of an output signal makes 5 Century.
As the frequency of rotation of the camshaft is twice less than the frequency of rotation of a bent shaft, the output signal reaches a maximum and a minimum for two turns of a bent shaft that corresponds to a running cycle in various cylinders of the engine.
The sensor of frequency of rotation and the provision of a bent shaft 7/21 of inductive type gives signals of the frequency of rotation of the engine and the provision of a bent shaft on BU.
Thus, by means of two sensors (the sensor of position of the camshaft and the sensor of provision of a bent shaft) BU defines in what cylinder it is necessary to ignite fuel mix.


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9.1.2. Oxygen sensor
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9.1.4. Sensor of temperature of cooling liquid and detonation