>> Systems of an electric equipment of the engine
>> Charge and start systems
>> Charge system - the general data and security measures
Charge system - the general data and security measures
The general data
On all considered models the alternating current generator is used. At installation of an additional electric equipment check up, that capacities of the generator was enough for maintenance of new consumers with the electric power.
The generator drive is carried out клиновидным by a belt from a cranked shaft of the engine (the Engine see the Head).
The generator represents the three-phase synchronous electric car with electromagnetic excitation. For transformation of an alternating current in constant the generator it is built in диодный the rectifier. Pressure adjustment is carried out by the built in microelectronic regulator.
Design of the generator established on petrol models
Design of the generator established on diesel models
At work of the generator the electric current proceeding on a winding of excitation, creates a magnetic stream round rotor poles. At rotor rotation there is a periodic change of its magnetic poles under each tooth статора, as a result, the magnetic stream passing through teeth, continuously changes on size and pressure. This variable magnetic stream creates in a winding статора electromotive power (ЭДС). The klinoobraznaja form of polar tips of a rotor is picked up so that the form of curve ЭДС was provided close to sinusoidal.
At high frequency of rotation of a rotor when target pressure of the generator starts to exceed 13.6-14.6 In, the pressure regulator is locked also a current through a winding of excitation does not pass. When pressure decreases, the regulator opens again, providing freedom пропускания a current. The above frequency of rotation of a rotor, the longer a regulator remains locked and, that, accordingly, pressure on a generator exit more strongly falls. Process of lock-out and regulator unlocking occurs to high frequency, therefore target fluctuations remain almost imperceptible and it is possible to consider pressure of the generator to the constants supported at level of 13.6-14.6 Century
The system of a charge does not demand periodic service, however condition/replacement check приводного a belt of the generator, the storage battery and its electroconducting should be made on a regular basis according to the Schedule THAT (Current leaving and service see the Head).
At ignition inclusion on a combination of devices the control lamp of a charge (Controls and operation receptions see the Head) should be activated quickly. If the lamp is not disconnected after short time after realisation of start of the engine, or activated in the course of functioning of the last, it is necessary to make check of a condition of components of system of a charge. Refusal of activation of a lamp at ignition inclusion testifies to its exit out of operation, damage of corresponding electroconducting, or infringement of serviceability of functioning of the generator (including breakage приводного a belt).
Security measures at generator service
At all do not disconnect the battery and a pressure regulator at the working engine;
Do not close on weight the plug of excitation of the generator / the cable fixed on it;
Do not confuse an order of connection of electroconducting of a regulator of pressure;
Remember that inclusion of the regulator of pressure closed on weight leads to its instant exit out of operation;
Do not remove the generator at the connected battery;
Do not confuse polarity of connection of the storage battery;
Do not use at checks of an onboard electric equipment measuring instruments the pressure/lamps-samplers connected to a household network (110/220);
At check of a condition of diodes do not submit on them pressure more than 12 In and do not apply the mega-ohmmeters also having high target pressure, - breakdown of diodes will lead to short circuit. Remember that at check of isolation of electroconducting by means of a mega-ohmmeter it is necessary to disconnect all electroconducting from the generator;
Remember that a food should move always on the plug In the generator (illustrations the Scheme of connection of the generator and an arrangement of its contact plugs (diesel models) and the Scheme of connection of the generator and an arrangement of its contact plugs (diesel models) see);
Do not start the engine at disconnected from plugs S both L/L and R the generator (illustrations the Scheme of connection of the generator and an arrangement of its contact plugs (diesel models) and the Scheme of connection of the generator and an arrangement of its contact plugs (diesel models) see) to electroconducting;
At gymnastics of the storage battery without removal from the car track, that both wires have been disconnected from it, - do not confuse polarity of connection зарядного the device;
Before carrying out on the car of any electrowelding works do not forget to disconnect electroconducting from the generator and the storage battery;
Any checks of chains and knots of onboard electroconducting make at the muffled engine and the disconnected storage battery;
Remember that infringement of polarity of any connections is interfaced to risk of irreversible failure of the rectifier and a regulator of pressure of the generator.