194003051 - E1010 POWER SUPPLY SYSTEM - DESCRIPTION
The electrical system is designed to increase the car''s safety level and prevent the possibility of fires and other consequences of electrical malfunctions. State-of-the-art connectors have been introduced to rule out the possibility of many connection defects.Power is distributed via the junction units and/or fuses boxes. These are connected to control elements (relays and static actuators) to ensure maximum electrical protection and minimum complexity.All wiring looms have been made modular (sub-assembly composition) by changing the way functions are distributed inside the connectors and replacing welds with short-circuiting joints.The main safety solutions adopted are as follows:- power supplies protected by maxifuses to cut off the electrical system, in the case of short circuit, immediately downstream of the battery (see detail below);- the only leads excluded from the maxifuses (starter motor and alternator) are located in protected areas;- the layout of the whole system is optimised to reduce the risk of damage in the case of faults or accidents;- wiring installation has been optimised to reduced incorrect positioning and noise due to vibrations;- all wires offer high resistance to abrasion;- the wires in the engine are a special type , resistant to high temperatures and protected with outer casings or piping;- the wires in the passenger compartment are protected by corrugated pipes and napped tape to reduce noise levels;- the main connections come with secondary lock terminals and lever locks to prevent terminal deformation.All systems and electrical equipment are supplied by the battery at a voltage of 12V.The battery is, in turn, recharged by the alternator during engine operation See E5010 STARTING AND RECHARINGThe main supply lines are protected by maxifuses grouped in a box located directly on the positive battery terminal and connected directly to the terminal.The box contains the following maxifuses that are labelled according to the circuits protected:- CVM: engine compartment junction unit supply- CPL: underfacia junction unit supply- NGE : electric steering control unit supply;Other circuits are supplied by turning the ignition key to various positions (ON and START). The power supply is provided by the steering lock control unit which acts as a proper power distributor, supplying:- by inserting the key in the ignition device (TEG Reader) and turning it through one click to the ON position, the steering lock control unit supplies numerous circuits that are described as ignition-operated (INT and 15/54 lines);- in the second position - START - the steering lock control unit supplies the starter motor; (line "50"), disconnecting some other circuits (those which absorb a lot of power) thereby ensuring the maximum current flow to the actual starter motor; ("INT/A" line). | the lines that distribute power to the various appliances are represented in the wiring diagrams for the various functions and systems. |