2.4.1.3. Camshaft phase-shifter
K4M.
Gas distribution phases smoothly change from 0 to 43 ° on an angle of rotation of a bent shaft. The phase-shifter is run by the electromagnetic valve on which power supply in the form of a variable signal of extent of cyclic opening from EBU of system of injection moves.
F4R.
The phase-shifter is the electromagnetic valve which is powered by the principle "yes-no", from EBU of system of injection.
Control of the electric fan of the cooling system of the engine and alarm lamp of emergency temperature of cooling liquid.
The inquiry arrives from EBU of system of injection on multiplex network (function of the centralized management of temperature of cooling liquid). Supply voltage moves on the electric fan from the block of protection and switching.
Control of the conditioner compressor.
The inquiry arrives from EBU of system of injection on multiplex network. The inquiry is developed on the basis of data on work of climatic installation, and also taking into account temperature of cooling liquid. The compressor of the conditioner is powered via the block of protection and switching.
Control of the fuel pump.
The inquiry arrives from EBU of system of injection. Supply voltage moves on the fuel pump from the block of protection and switching.
The regulator – the limiter.
The regulator – the limiter of speed of the movement and the air conditioning system are configured automatically.
Oxygen sensor.
Two oxygen sensors installed on an entrance and an exit of catalytic converter are used.
Block of a butterfly valve.
Air supply and the mode of idling are regulated by the block of a butterfly valve with the servo-driver.
Block of protection and switching.
The block gives supply voltage to the following units:
– ignition coils;
– fuel pump;
– conditioner compressor;
– electric fan;
– some executive mechanisms of system of injection (nozzle, electromagnetic valve of a purge of an adsorber, etc.).
The block of protection and switching is placed in a motor compartment near the rechargeable battery. The block provides protection of chains of some electric devices.
For performance of this function safety locks and several built-in relays are a part of the block:
– relay ""+" after the ignition lock";
– relay of the fuel pump;
– conditioner compressor relay;
– engine cooling system electric fan relay;
– starter relay (control of the traction relay of a starter).
These relays fixed.
EBU of system of injection.
The block constantly obtains information on the electric power developed by the generator on multiplex network. It is necessary in order that electricity consumption on the car did not exceed generator opportunities. The main objective is providing charging of the rechargeable battery.
Accelerator pedal.
Replacement of a pedal of an accelerator does not represent complexity.
EBU accepts as basic value of the released pedal value, only a few at inclusion of ignition.
The sensor executed in the form of a dual-track potentiometer issues information on the provision of a pedal of an accelerator in EBU. Signal tension from the sensor has two conducting paths with a different resistance. From the first conducting path tension (0–5 V) moves, signal tension from the second path is twice higher (0-2,5 B). Comparison of tension of both signals allows to be convinced of compliance of the developed signal to the current value.
Idling mode.
Turns of idling increase no more than for 160 min.-1 if tension of the rechargeable battery is lower than 12,7 Century.
In case of the present and remembered malfunction of the sensor of absolute pressure the set mode of idling is set by equal:
– 896 min.-1 (K4J and K4M engines),
– 1024 min.-1 (F4R engine).
The system of injection S 3000 operates inclusion of three alarm lamps and display of messages according to severity of the revealed malfunctions for the purpose of definition of necessary diagnostics.
EBU of system of injection operates inclusion of alarm lamps and removal of messages on a guard of devices. These alarm lamps join during a phase of start of the engine, and also at malfunction of system of injection or an overheat of the engine.
Commands for inclusion of alarm lamps are transferred to a guard of devices on multiplex network.