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
9.2. Diagnostics
10. Electric equipment. Conducting and components
11. Body
12. Schemes of electric equipment
 







9-sistema-upravleniya-dvigatelem-fenix-5-1.html

9. Control system of the Fenix 5.1 engine




Fenix 5.1 — a complex control system of the engine which besides management of fuel injection, ignition, the fuel pump and frequency of rotation idling, also operates temperature of heating of the oxygen sensor, operation of the compressor of the conditioner of air, fans of cooling of the engine and control units. The Control Unit (CU) also submits information on a combination of devices and the control unit of the automatic transmission. Distinctive feature of the Fenix 5.1 system is individual functioning of nozzles in each cylinder (so-called "consecutive operation"). This function allows to provide injection of fuel at the moment, optimum for combustion, and individual management of each nozzle. The Fenix 5.1 system includes functions of adaptive control of the oxygen sensor, idling and a corner of an advancing of ignition depending on detonation conditions. It allows to minimize toxic emissions of exhaust gases and at the same time to facilitate service of system as need for adjustment of contents WITH or rotation frequencies idling disappears.
The control unit constantly registers and brings in memory codes of malfunctions for their subsequent search and display. Codes of malfunctions are read out by means of the diagnostic unit which is connected to diagnostics socket which is in a motive compartment.
If the malfunction found by system caused increase in concentration of harmful substances in exhaust gases, in a combination of devices the control lamp of failures lights up.
Good output characteristics are provided with opportunities of regulation of parameters over a wide range. So, idling with a frequency of rotation of 700 —
800 rpm a corner of an advancing of ignition can change within 5 — 13 °, and the content of carbon dioxide in exhaust gases will be less than 0,2% (data for B4184S, V4204S engines). At the same time the specified parameters are not subject to adjustment and can only be controlled.

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9.1. Description of system



 
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