Contents Section: Charging System All sections

Charging System - 4.6L: Overview Hyundai Genesis I рестайлинг

Charging System 5 illustrations ~920 words

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.

DC current appears at alternator "B" terminal.

The charging voltage of this alternator is regulated by the ECM.

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.

Scheme 32

Scheme 32: Description
  1. The maintenance-free battery is, as the name implies, totally maintenance free and has no removable battery cell caps.
  2. Water never needs to be added to the maintenance-free battery.
  3. The battery is completely sealed, except for small vent holes in the cover. NOTE: After disconnecting then reconnecting the battery negative cable, reset some parts that require the reset procedures. (Refer to «GENERAL INFORMATION»(ref-588775-S23065435902013120900000) ) CAUTION: If the battery is charged directly at the battery terminals on vehicles with battery sensor, misinterpretations of battery condition and under certain circumstances also unwanted Check Control messages or fault memory entire can occur. If the battery is charged directly at the battery (+), (-) terminals on vehicles with battery sensor, please battery sensor be re-installed and re-calibration.

Scheme 33

Scheme 33: Battery Diagnostic Flow

Scheme 34

Scheme 34: Vehicle Parasitic Current Inspection
  1. Turn the all electric devices OFF, and then turn the ignition switch OFF.
  2. Close all doors except the engine hood, and then lock all doors. Disconnect the hood switch connector. Close the trunk lid. Close the doors.
  3. Wait a few minutes until the vehicle's electrical systems go to sleep mode. NOTE: For an accurate measurement of a vehicle parasitic current, all electrical systems should go to sleep mode. (It takes at least one hour or at most one day.) However, an approximate vehicle parasitic current can be measured after 10 ~ 20 minutes.
  4. Connect an ammeter in series between the battery (-) terminal and the ground cable, and then disconnect the clamp from the battery (-) terminal slowly. CAUTION: Be careful that the lead wires of an ammeter do not come off from the battery (-) terminal and the ground cable to prevent the battery from being reset. In case the battery is reset, connect the battery cable again, and then start the engine or turn the ignition switch ON for more than 10 sec. Repeat the procedure from No. 1. To prevent the battery from being reset during the inspection, Connect a jump cable between the battery (-) terminal and the ground cable. Disconnect the ground cable from the battery (-) terminal. Connect an ammeter between the battery (-) terminal and the ground cable. After disconnecting the jump cable, read the current value of the ammeter.
  5. Read the current value of the ammeter. If the parasitic current is over the limit value, search for abnormal circuit by removing a fuse one by one and checking the parasitic current. Reconnect the suspected parasitic current draw circuit fuse only and search for suspected unit by removing a component connected with the circuit one by one until the parasitic draw drops below limit value Limit value (after 10 ~ 20 min.): Below 50 mA

Scheme 35

Scheme 35: Cleaning
  1. Make sure the ignition switch and all accessories are in the OFF position.
  2. Disconnect the battery cables (negative first).
  3. Remove the battery from the vehicle. CAUTION: Care should be taken in the event the battery case is cracked or leaking, to protect your skin from the electrolyte. Heavy rubber gloves (not the household type) should be worn when removing the battery.
  4. Inspect the battery tray for damage caused by the loss of electrolyte. If acid damage is present, it will be necessary to clean the area with a solution of clean warm water and baking soda. Scrub the area with a stiff brush and wipe off with a cloth moistened with baking soda and water.
  5. Clean the top of the battery with the same solution as described above.
  6. Inspect the battery case and cover for cracks. If cracks are present, the battery must be replaced.
  7. Clean the battery posts with a suitable battery post tool.
  8. Clean the inside surface of the terminal clamps with a suitable battery cleaning tool. Replace damaged or frayed cables and broken terminal clamps.
  9. Install the battery in the vehicle.
  10. Connect the cable terminals to the battery post, making sure tops of the terminals are flush with the tops of the posts.
  11. Tighten the terminal nuts securely.
  12. Coat all connections with light mineral grease after tightening. CAUTION: When batteries are being charged, an explosive gas forms beneath the cover of each cell. Do not smoke near batteries being charged or which have recently been charged. Do not break live circuit at the terminals of batteries being charged. A spark will occur when the circuit is broken. Keep open flames away from battery.

Vehicles have many control units that use more electricity. These units control their own system based on information from diverse sensors. It is important to have a stable power supply as there diverse sensors giving a variety of information. Battery sensor is mounted on battery (-) terminal. It transmits battery voltage, current, temperature information to ECM.

ECM controls generating voltage by duty cycle based on these signals.

Scheme 36

Scheme 36: Description
CAUTIONWhen battery sensor signal fault occurs, inspect the vehicle parasitic draw in advance after inspecting the sensor because the sensor will behave abnormally when the parasitic draw is more than 100 mA. (Refer to VEHICLE PARASITIC CURRENT INSPECTION )

Note. Perform the following process after replace the battery sensor. Ignition switch ON/OFF. Park the vehicle about 4 hours. After 4 hours later, check the SOC (State of charge) of battery using GDS. After engine start ON/OFF 2 times or more, check the SOF (State of function) of battery using GDS.

CAUTIONFor the vehicle equipped with a battery sensor, be careful not to damage the battery sensor when the battery is replaced or recharged. When replacing the battery, it should be same one (type, capacity and brand) that is originally installed on your vehicle. If a battery of a different type is replaced, the battery sensor may recognize the battery to be abnormal. When installing the ground cable on the negative post of battery, tighten the clamp with specified torque of 4.0 ~ 6.0 N.m (0.4 ~ 0.6 kgf.m, 3.0 ~ 4.4 lb-ft). An excessive tightening torque can damage the PCB internal circuit and the battery terminal. When recharging the battery, ground the negative terminal of the booster battery to the vehicle body.