The charging system includes a battery, an alternator with a built-in regulator, and the charging indicator light and wire.

The Alternator has built-in diodes, each rectifying AC current to DC current.

Therefore, DC current appears at alternator "B" terminal.

In addition, the charging voltage of this alternator is regulated by the battery voltage detection system.

The main components of the alternator are the rotor, stator, rectifier, capacitor brushes, bearings and V-ribbed belt pulley. The brush holder contains a built-in electronic voltage regulator.

1. Brush

2. Dirve belt pulley

3. Rotor

4. Stator

5. Rectifier

Alternator Management System

Alternator management system controls the charging voltage set point in order to improve fuel economy, manage alternator load under various operating conditions, keep the battery charged, and protect the battery from over-charging. ECM controls generating voltage by duty cycle (charging control, discharging control, normal control) based on the battery conditions and vehicle operating conditions.

The system conducts discharging control when accelerating a vehicle. Vehicle reduces an alternator load and consumes an electric power form a battery.

The system conducts charging control when decelerating a vehicle. Vehicle increases an alternator load and charges a battery.

Charging System

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Repair procedures

On-vehicle Inspection • Check that the battery cables are connected to the correct terminals ...

See also:

Trunk lamp
The trunk room lamp comes on when the trunk is opened. CAUTION The trunk lamp comes on as long as the trunk lid is open. To prevent unnecessary charging system drain, close the trunk lid secur ...

Components and Components Location
Component Location 1. Start Stop Button(SSB) 2. FOB key holder 3. FOB key 4. PDM(Power Distribution Module) 5. Smart key unit 6. RF receiver 7. Body control modul ...

Balance Shaft & Oil Pump. Components and Components Location
Components 1. Balance shaft & oil pump assembly 2. Balance shaft chain tensioner 3. Balance shaft chain 4. Balance shaft chain sprocket 5. Balance shaft cha ...