Hyundai Elantra: Charging System / Description and operation

Hyundai Elantra (CN7) 2021-2024 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.

Charging System

Troubleshooting

Troubleshooting Symptom Suspect area Remedy Charging warning indicator does not light with ignition switch "ON" and engine off...

Other information:

Hyundai Elantra (CN7) 2021-2024 Service Manual: Specifications

SpecificationAir Conditioner Item Specification CompressorTypeGamma 1.6 MPI, Gasoline 2.0 NU MPI, Gasoline 1.6 T-GDI : 6HVx14Gasoline 1.6 MPI : 6HVe14Oil type & CapacityFD46XG (IDEMITSU) 100 ± 10 g Pulley type6PK-TYPEDisplacement145 cc/revExpansion valveTypeBlock type RefrigerantTypeR - 134a, R-1234yf Capacity500 ± 25 g Blower Unit ..

Hyundai Elantra (CN7) 2021-2024 Owner's Manual: Rear Cross-Traffic Collision-Avoidance Assist (RCCA)

Rear Cross-Traffic Collision-Avoidance Assist is designed to help detect vehicles approaching from the left and right side while your vehicle is reversing, and warn the driver that a collision is imminent with a warning message and an audible warning. Also, braking is assisted to help prevent a collision. [A] : Rear Cross-Traffic Collision Warning operating range, [B] : Rear Cross-Traffic..

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.