A standard automotive ignition system uses dedicated electrical components to deliver a timed electrical spark to the combustion chamber. Which primary operational role corresponds to each ignition system component listed below?
- Ignition switchSupplies low-voltage battery power to the primary ignition circuit when turned to the RUN position
- Ignition coilSteps up low battery voltage into high voltage to bridge the electrode air gap
- Crankshaft position sensorMonitors engine rotational angle to supply precise timing signals for spark triggering
- Spark plugDischarges a high-voltage electrical arc inside the cylinder to ignite the air-fuel mixture
Cevap
The ignition switch connects primary battery power, the ignition coil steps up battery voltage into high secondary voltage, the crankshaft position sensor delivers precise timing signals, and the spark plug discharges the electric arc inside the combustion chamber.
Each component performs a distinct function in the sequence of spark creation: the ignition switch allows battery current into the primary circuit, the crankshaft position sensor sends timing data, the ignition coil steps up the voltage, and the spark plug discharges the high-voltage arc inside the combustion chamber.
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Function and signal flow of core automotive ignition system components
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