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LEXUS RX 3001998 — 2003 of releaseRepair and operation of the car |
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Lexus RX 300 + Lexus RX-300 cars + Governing bodies and methods of operation + Settings and routine maintenance of the car + Engine + Cooling systems of the engine, heating, ventilation and air conditioning + Power supply system and production of the fulfilled gases - Systems of electric equipment of the engine + Systems of ignition and engine management + Diagnostics of systems of electronic control and diagnostic equipment - Systems of a charge and start General information The rechargeable battery - the general information, recommendations about service System of a charge - general information and security measures Check of system of a charge Removal and installation of the generator System of start of the engine - the general information Removal and installation of a starter + Automatic transmission and interaxal differential + Transmission line + Brake system + Suspension bracket and steering + Body + Onboard electric equipment + Schematic diagrams of electric connections |
System of a charge - general information and security measures On the considered cars the generator of alternating current is used. At installation of additional electric equipment check that there was enough power of the generator for providing new consumers with the electric power. The drive of the generator is carried out by a wedge-shaped belt from a bent shaft of the engine. The generator represents the three-phase synchronous electrical machine with electromagnetic excitement. For transformation of alternating current in constant the diode rectifier is built in the generator. Adjustment of tension is carried out by the built-in regulator. During the operation of the generator the electric current proceeding on an excitement winding creates a magnetic flux around rotor poles. At rotation of a rotor there is a periodic change of its magnetic poles under each tooth of the stator, as a result, the magnetic flux passing through teeth, continuously changes in size and tension. This variable magnetic flux creates the electromotive force (EMF) in a stator winding. The wedge-shaped form of polar tips of a rotor is picked up in such a way that allows to receive close to sinusoidal a form of curve EMF. With a high frequency of rotation of a rotor when the output tension of the generator begins to exceed 13.6 ÷ 14.6 B, the regulator of tension is locked and current does not pass through a winding of excitement. When tension decreases, the regulator opens again, providing freedom of a transmission of current through an excitement winding. The frequency of rotation of a rotor is higher, the longer the regulator remains locked and, that respectively tension at the generator exit decreases stronger. Process of locking and unlocking of the regulator happens with high frequency therefore output fluctuations remain almost imperceptible and the constants supported at the level of 13.6 ÷ 14.6 Century can consider tension of the generator. The system of charging does not demand periodic service, however check of a state and replacement of a driving belt of the generator, the rechargeable battery and its electrical wiring it is necessary to make on a regular basis according to the schedule THAT (see the Head Nastroyki and routine maintenance of the car). At inclusion of ignition on a combination of devices has to light up quickly To/L a charge (see the Head Governing bodies and methods of operation). If the lamp is not disconnected later short time after implementation of start of the engine or lights up in the course of functioning of the last, check a condition of components of system of a charge. The refusal of activation of a lamp at inclusion of ignition testifies to its exit out of operation, damage of the corresponding electrical wiring, or violation of serviceability of functioning of the generator (including break of a driving belt). Security measures at service of the generator
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