Hyundai Elantra: Charging System / Description and operation
Hyundai Elantra (CN7) 2021-2023 Service Manual / Engine Electrical System / Charging System / Description and operation
| 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.
| Alternator Management System (AMS) |
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.
Troubleshooting
Troubleshooting
Symptom
Suspect area
Remedy
Charging warning indicator does not light with ignition switch "ON" and engine off...
Other information:
Hyundai Elantra (CN7) 2021-2023 Service Manual: Troubleshooting
Troubleshooting Symptom Suspect area Remedy Engine misfire with abnormal internal lower engine noises.Loose or improperly installed drive plate.Repair or replace the drive plate as required...
Hyundai Elantra (CN7) 2021-2023 Owner's Manual: Check Tire Inflation Pressure
Check your tires, including the spare tire, once a month or more. How to check Use a good quality tire pressure gauge to check tire pressure. You can not tell if your tires are properly inflated simply by looking at them. Radial tires may look properly inflated when they are underinflated...
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Tachometer
The tachometer indicates the approximate number of engine revolutions per minute (RPM).
Use the tachometer to select the correct shift points and to prevent lugging and/ or over-revving the engine.
NOTICE
Do not operate the engine within the tachometer's RED ZONE. This may cause severe engine damage.
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