Sistem stater pada mobil

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Fungsi Utama

• The main purpose of the starter motor is to provide initial power to crank the engine to start it up when the ignition switch is turned on.

Fungsi Komponen• Battery : energy resource

• Solenoid: connect the current from the battery to the starter to reduce voltage drop that would occur by going through the ignition switch.

• Starter: uses electrical energy to spin the flywheel which turns the crankcase and induces combustion.

Prinsip Motor

• DC motors interaction of magnetic fields to convert electrical energy to mechanical energy

• Current is applied to field and armature

• Conductor tends to move from weak magnetic field to strong magnetic field.

• For armature to continue rotating, the current flow must be reversed.

Arus Konductor

• Conductor has magnetic flux lines around it

• Opposes north and south fields which causes loop of wire to turn.

Magnet• Has north and

south pole.

• Magnetic lines of force move from north to south pole.

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Konduktor dlm Medan Magnet

• As current travels through conductor and fields, conductor moves.

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• Flux lines always tend to want to be straight

• Fields act on each other

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Gerakan Konduktor dalam Medan Magnet

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Prinsip Motor Starter

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Electromagnetic Motor

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Model Motor Starter

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Lokasi Motor Starter

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Motor Starter Konvensional

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Konstruksi M Starter Konv.

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Detail Komponen

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Lepasan Komponen

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Komponen Utama

1. Solenoid

2. Armature

3. Kumparan Medan

4. Overruning Clutch

5. Brush dan Holder

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1. Solenoid

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Solenoid

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Konstruksi Solenoid

Hold in Coil

Pull in Coil

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Kontak Utama

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Solenoid Model Terpisah

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2. Armature

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Armature

• Made of Laminated Core• Solid Steel Shaft• Commutator• Lap and Wave Wound (P C141)

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Pengetesan Armature

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3. Kumparan Medan

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Kumparan Medan

• Iron Core & Windings concentrate magnetic field• Fields have north and south pole based on

direction windings are wound around pole shoes

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3 Methods of Connecting Fields

• Series Wound– Maximum torque

when starts

• Shunt Wound– Used in smaller

motors

• Compound Wound– Constant speed

Page C143

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Seri

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Starter Model Movable Pole Shoe

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4. Overrunning Clutch + Pinion

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Overrunning Clutch + Pinion

Overruning Clutch

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Konstruksi Overrunning Clutch

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5. Sikat dan Dudukan

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Kerja Motor Starter

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Kerja Motor Starter

Kerja Motor Starter

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Kerja Motor Starter

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Starter Jenis Reduksi

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Starter Jenis Reduksi

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Starter Jenis Reduksi

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Starter Reduksi

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Solenoid, Clutch, Pinion

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Overruning Clutch

Overruning Clutch + Pinion

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Solenoid

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Cara Kerja

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Starter Jenis Planetari

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Konstruksi St Panetari

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Konstruksi St Panetari

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Overrunning Clutch

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