Kia Stinger CK: Charging System / Alternator

Kia Stinger (CK) 2018-2023 Service Manual / Engine Electrical System / Charging System / Alternator

Specifications

Specification

▷ 13.5V, 150A

Item	Specification
Rated voltage	13.5V , 150A
Speed in use	0 - 18,000 rpm
Pin	1
Voltage regulator	IC Regulator built in type
Default regulated voltage (V) [COM terminal]	14.39 - 15.43 [-35°C(31°F)]
	14.15 - 14.95 [25°C(77°F)]
	13.23 - 14.49 [140°C(284°F)]
Pully Type	OAP

Description and operation

Description

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.

1. Brush
2. Drive belt pulley
3. Rotor
4. Stator

Components and components location

Components

1. Pulley
2. Front bracket
3. Front bearing
4. Bearing cover
5. Bearing cover bolt
6. Rotor
7. Rear bearing

8. Rear bracket8. Shield
9. Through bolt
10. Brush holder assembly
11. Brush holder bolt
12. Rear cover
13. Nut

Schematic diagrams

Circuit Diagram

•	COM signal - When controlling the voltage generated, the ECM sends the target voltage data to the alternator via a PWM signal.(High voltage: 4V or higher, low voltage: 2V or lower)

•

FR signal - The transistor activation signal inside the alternator monitors the voltage generated by the alternator to control the excitation current before it sends the FR signal to the ECM. (At certain RPM/electric loads, the FR duty can remain static. However, more often, the RPM, electric load, target voltage, etc. are always changing in the vehicle, so the FR must also change constantly)

•	L signal - Turns on the battery warning lamp on the dashboard when the battery charging system malfunctions. (Conditions for turning on the lamp - overcharge, over discharge, a field coil blown inside the alternator)

•	B+ terminal - The output voltage from the generator travels to the battery via the B+ terminal.

Repair procedures

Removal

1.	Switch "OFF" the ignition and disconnect the negative (-) battery terminal.

2.	Remove the drive belt. (Refer to Engine Mechanical System - "Drive Belt")

3.	Disconnect the alternator connector (B), and remove the cable (A) from alternator "B" terminal.

4.	Remove the alternator lower bolt and upper bolt (A).

5.	Remove the alternator (A).

Installation

1.	Install in the reverse order of removal.

2.	Install the drive belt. (Refer to Engine Mechanical System - "Drive Belt")

Charging System

DC DC converter

Other information:

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