Basic Automotive Electrical Ignition

Conventional Ignition system

How to ignition of fuel at motor fuel divided into 2 types:

Ignition of its own                                   Ignition by electric sparks

(Diesel motor)                                                    (Motor gasoline)

Diesel motor

 Compressed air with a high compression pressure

• 20-40 bars (2-4 MPa) temperature rise 700 - 9000C

The fuel is sprayed into the combustion chamber

• Direct ignition occurs / combustion

Motor gasoline

 Air + fuel mixture compressed with low compression pressure

• 8-13 bar (0.8 to 13 MPa) temperature rise 400 - 6000C

sparkplug ignition sparks occur / combustion

Conventional ignition systems on motor gasoline there are 2 kinds:

1.Sistem battery ignition

2. Magnetic ignition system
 
How to Boost Voltage

 12 Volt                                                                  5000 – 25000 Volt

Battery voltage (12 V) was raised to high voltage 5000 - 25 000 volts using a transformer (coil).

Basic Voltage Transformation

Voltage transformation based on the principle of magnetic induction

a) The magnetic induction

If the magnetic digerak moving near the coil, then:

• There was a change in magnetic field

• Incurred voltage

Voltage is called "Voltage Induction"

b) Transformer

If the primary connection is connected to an alternating current transformer - back then:

• There are changes in electrical current

• There was a change in magnetic field

• There induksii voltage lights

c) Comparison of Voltage

Comparison of the voltage proportional to the ratio of the number of windings

• The number of winding induced voltage slightly smaller

• The number of induced voltage winding many large

d). Transformation with direct current

What if given a direct current transformer?

• The transformer may not work with direct current, because:

• flows remain

• no magnetic field change occurred

• There is no induction

How to change the magnetic field?

By giving the switch on the primary connection

If the switch is opened / closed (on / off), then:

• Primary Flow disconnected - broken

• There is a change in magnetic field

• There was an induction