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Technical Info

Kia Rio: Description - Charging System - Engine Electrical System - Kia Rio UB 2012-2020 Service ManualKia Rio: Description

The charging system included a battery, an alternator with a built-in regulator, and the charging indicator light and wire.
The Alternator has eight 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 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.
[AMS type (OAD)]


1. Brush
2. OAD (Overrunning Alternator Decoupler)
3. Rotor
4. Stator
5. Rectifier

[AMS type (NON-OAD)]


[ISG type (NON-DAD)]


1. Brush
2. Drive 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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On-vehicle Inpection
   First of all, check for DTCs. If a DTC is present, perform troubleshooting in accordan ...
See also:

Filler-Neck Assembly Removal
1. Open the fuel filler door, and then remove the filler-neck assembly mounting screws (A). 2. Disconnect the fuel filler hose (A) ...

Description
Rail Pressure Sensor (RPS) is installed on the delivery pipe and measures the instantaneous fuel pressure in the delivery pipe. The sensing element (Semiconductor element) built in the sensor ...

Removal
1. Turn the ignition switch OFF and disconnect the battery negative (-) cable. 2. Remove the resonator and the air intake hose (Refer to I ...

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