3023445 - E5010 STARTING AND RECHARING - Description (Cambio robotizzato)
Description
The ignition and recharging circuit comprises
a battery, starter motor and alternator.The starter motor consists of a direct current
motor supplied by the battery and an excitation solenoid. When the
ignition key is turned to the extreme position (AVV), the starter motor
windings are supplied, producing electro-magnetic forces which rotate
the motor pinion. At the same time, the solenoid is energized and
operates the mechanism for engaging the pinion in the flywheel ring
gear, thus turning over the engine.
In this version with robotized gearbox,
the enablement for rotation of the starter motor is supplied by
the Selespeed control unit.
See E7051 ROBOTIZED GEARBOX
.
The alternator recharges the battery during
normal engine rotation. The alternator shaft (rotor) is turned by
the crankshaft by means of a belt. When supplied with an excitation current,
the rotor generates a magnetic field that induces an alternating
current in the fixed winding (stator). A diode rectifying bridge
located on the back of the alternator transforms the alternating
current into a direct current, which is sent to recharge the battery.A voltage regulator, also built into the
alternator, maintains a constant voltage supply (about 14V) throughout
the load and engine speed ranges.The efficiency of the recharging system
is controlled by the Body Computer, which measures the D+ signal
coming from the alternator with the engine running (rpm over 700).If a fault is detected, the relevant warning
light on the instrument panel is switched on.The Body Computer also acquires the battery
voltage value in the 6-19V field.
The informatio is then supplied to the CAN
network for the controls unit node on the door which excludes some
services in the case of a voltage drop (for example
See E2510 COURTESY LIGHTS
.