Kia Optima: Description and Operation - Charging System - Engine Electrical System - Kia Optima TF 2011-2025 Service ManualKia Optima: Description and Operation

Description

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. Brush2. Dirve belt pulley

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:

Temperature control
The temperature control knob allows you to control the temperature of the air flowing from the ventilation system. To change the air temperature in the passenger compartment, turn the knob to th ...

Hazardous Driving Conditions
When hazardous driving conditions are encountered such as water, snow, ice, mud, sand, or similar hazards, follow these suggestions: Drive cautiously and allow extra distance for braking. Avoi ...

Towing with a vehicle other than a tow truck
If towing is necessary, we recommend you to have it done by an Authorized Kia dealer or a commercial tow truck service. If towing service is not available in an emergency, your vehicle may be tem ...

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