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Charging system PT 1. http://www.youtube.com/watch?v=oYTrbDLSy_w. Charging System. Purpose. Purpose of charging system to keep battery at a fully charged state. Provide power for all electrical loads Alternator is the component that generates electricity to charge the battery. Principle.

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charging system pt 1
Charging system PT 1
  • http://www.youtube.com/watch?v=oYTrbDLSy_w
purpose
Purpose
  • Purpose of charging system to keep battery at a fully charged state.
  • Provide power for all electrical loads
  • Alternator is the component that generates electricity to charge the battery.
principle
Principle
  • The principle of electromagnetic induction to generate electrical energy from mechanical energy
  • Electromagnetic induction involves the generation of an electrical current in a conductor when the conductor is moved through a magnetic field.
how do we increase electricity
How do we increase electricity
  • Demonstration with alternator on how electricity is generated.
  • How can we increase electricity
increasing current
Increasing Current
  • Increasing the speed of the conductor through the magnetic field.
  • Increasing the number of conductors passing through the magnetic field
  • Increasing the strength of the magnetic field.
ac and dc
AC and DC
  • AC– Alternating current
  • DC– Direct Current
  • Alternator generates AC voltage.
  • Automotive battery and vehicle system using DC voltage.
ac and dc1
AC and DC
  • So what changes the AC to DC voltage.
  • The voltage Rectifier.
  • Rectifiers are consisted with six diodes.
  • Diodes are one way check valves that only allow current to flow one way.
what is the proper system voltage
What is the proper system voltage?
  • 13.8 - 15 volts
  • 27.4 – 28.4 volts
voltage regulator
Voltage Regulator
  • Controls the voltage output of the alternator.
  • The regulator receives system voltage as an input, in order to regulate alternator output voltage.
charging system pt2
Charging System PT2

http://www.youtube.com/watch?v=Yv4t795Yb5k&feature=related

what can cause the charging system to under charge
What can cause the charging system to under-charge?
  • Loose fan belt
  • Low engine RPM
  • Excessive load requirements (add on accessories)
what can cause the charging system to under charge1
What can cause the charging system to under-charge?
  • Short driving trips
  • Defective generator
  • Defective voltage regulator
  • Defective wiring
slide29

Stator

Rectifier (Diode pack)

how does the voltage regulator control the a c generator
How does the voltage regulator control the A/C generator?
  • The regulator will turn on/off current to the field windings (rotor)
  • Increasing current to the rotor…
  • …will increase generator output
slide31

14 V

80 o F

1 V

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