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The ignition system is a critical component in gasoline engines, generating high-voltage sparks at precise moments to ignite the air-fuel mixture in cylinders. Modern systems use electronic control (e.g., ECU) instead of mechanical distributors, improving accuracy and reliability.
Key Terms (English)
Core Components
Ignition Coil
Spark Plug
Distributor / Electronic Control Module (ECM)
Power Source (Battery/Alternator)
High-Tension Wires
Crankshaft Position Sensor (CKP)
Engine Control Unit (ECU)
Key Functions
Ignition Energy
Ignition Timing
Combustion Efficiency
Emission Control
Working Principles
Primary Circuit
Secondary Circuit
Electromagnetic Induction
High-Voltage Discharge
Firing Order
Synchronization Signal
Common Failures
Misfire
Spark Plug Fouling
Coil Pack Failure
High-Tension Wire Degradation
Timing Misalignment
ECU Fault
Maintenance
Regular Spark Plug Replacement
High-Tension Wire Insulation Check
Distributor Contact Cleaning (Legacy Systems)
Coil Resistance Testing
ECU Software Updates
Technical Specifications
Spark Energy (50-100 mJ)
Breakdown Voltage (20-30 kV)
Ignition Advance Angle
Durability (>100,000 cycles)
Industry Jargon
CDI (Capacitive Discharge Ignition)
TCI (Transistor Controlled Ignition)
COP (Coil-On-Plug)
Waste Spark System
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