Automotive Electrical and Electronic Systems Classroom Manual Fifth Edition Update by John F. Kershaw

11
The Ignition:
Primary and
Secondary
Circuits and
Components
LEARNING
OBJECTIVES
Upon completion and review of this chapter, you
will be able to:
• Explain the process of mutual induction in
the ignition coil.
• List the components in the primary ignition
circuit.
• Describe the differences between electronic
and distributorless ignition systems.
• Have knowledge of the different solid-state
triggering devices.
• Describe the operation of the secondary ignition
system.
• List the secondary ignition components.
• List conditions that cause high resistance in
the secondary circuit.
• Explain the various design features of spark
plugs.
KEY TERMS
Available Voltage
Bakelite
Breaker Points
Burn Time
Capacitive-Discharge
Ignition System
Current Limiting Hump
Distributor Ignition
(DI) System
Dwell
Dwell Time
Electronic Ignition
(EI) Systems
Extended-Core
Spark Plug
Firing Line
Firing Voltage
Fixed Dwell
Hall Effect Switch
Heat Range
Inductive-Discharge
Ignition System
Ionize
Magnetic Pulse
Generator
Magnetic Saturation
Mechanical Ignition
Systems
No-Load Oscillation
Optical Signal
Generator
Reach
Required Voltage
Resistor-Type Spark
Plugs
Self-Induction
Spark Voltage
Television-Radio-
Suppression (TVRS)
Cables
Variable Dwell
Voltage Decay
Voltage Reserve
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