Vehicle Electrical SystemVehicle Electrical System

M.M.Palitha Mahinda MunasingheM.M.Palitha Mahinda Munasinghe

Farm Mechanical Instructor

palithamahinda@yahoo.com

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Battery TypeBattery Type

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Cut-way view of a typical batteryCut-way view of a typical battery

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Electron Movement of a Typical BatteryElectron Movement of a Typical Battery

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Component of DC BatteryComponent of DC Battery

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Cut-way View of a Typical BatteryCut-way View of a Typical Battery

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Open Circuit Voltage (12 V)

Open Circuit Voltage (6 V)

Approximate charge

Relative acid density

12.65 V 6.32 V 100% 1.265 g/cm3

12.45 V 6.22 V 75% 1.225 g/cm3

12.24 V 6.12 V 50% 1.190 g/cm3

12.06 V 6.03 V 25% 1.155 g/cm3

11.89 V 6.00 V 0% 1.120 g/cm3

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Wiring Diagram Ferguson-tea20Wiring Diagram Ferguson-tea20

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Auto Car Wiring Diagram Auto Car Wiring Diagram

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Car Ignition SystemCar Ignition System

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Auto Car H/Lamp Wiring Diagram Auto Car H/Lamp Wiring Diagram

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Auto Car B/Lamp Wiring Diagram Auto Car B/Lamp Wiring Diagram

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Charging SystemCharging System

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Charging SystemCharging System

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Voltage RegulatorVoltage Regulator

The voltage regulator keeps the voltage of the entire electrical system at a constant level When voltage of the battery is low the regulator then allows the alternator to produce more current to compensate and increased load

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Three Stage Voltage RegulatorThree Stage Voltage Regulator

Once the battery returns to the proper voltage, the regulator senses increase resistance in the electrical system created by the fully charged battery and reduces the alternator current output to keep the entire system at the proper voltage

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Starter MotorStarter Motor

It is function only the time of engine start

Consists with a powerful electric motor and Solenoid

The starter solenoid serves primarily as an electric switch for the starter motor

When the ignition is engaged, the solenoid completes the circuit between the battery and the starter motor

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Working Method And Parts of Working Method And Parts of Starter MotorStarter Motor

At the same time, an electrically activated lever inside the At the same time, an electrically activated lever inside the solenoid engages a drive pinion and clutch assembly inside solenoid engages a drive pinion and clutch assembly inside of the starter motorof the starter motorWith the starter motor activated and its clutch moved into With the starter motor activated and its clutch moved into the start position and turn a flywheel that cranks the engine the start position and turn a flywheel that cranks the engine Once the engine has started the solenoid switches off the Once the engine has started the solenoid switches off the starter motorstarter motor

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Electricity Input And Output Electricity Input And Output Circuit For AC/DC Alternator Circuit For AC/DC Alternator

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AC/DC AlternatorAC/DC Alternator

It is converting alternating electrical current from mechanical energyThe alternator serves the function of supplying the electrical energy needs of the vehicleAll of the electrical accessories are run from the alternator while the engine is in operationBattery recharging is also a function of the alternator