Traditional Culture Encyclopedia - Traditional culture - What are the advantages and disadvantages of the traditional ignition system?
What are the advantages and disadvantages of the traditional ignition system?
1, contact ablation and wear caused by mechanical contact, etc. Avoid frequent replacement, adjust the closing angle and correct the ignition timing.
2. It cannot control the on-off of the primary current of the ignition coil, nor can it amplify and process the pulse signal sent by the sensor. In addition to the switch function, the ignition controller can also know the engine speed according to the pulse step and provide the change of ignition time with the speed.
Advantages: The traditional ignition system is simple in structure and low in cost, and it is an earlier and more common ignition system.
Extended data
Principle:
The working process of the mechanical ignition system is that the crankshaft drives the distributor shaft to rotate, and the cam on the distributor shaft rotates, so that the primary contact of the ignition coil is turned on and off, resulting in high voltage electricity.
This kind of ignition high voltage electricity is sent to the spark plugs of each cylinder in turn through the ignition head on the distributor shaft according to the working requirements of the engine, and the spark plugs emit electric sparks to ignite the gas in the combustion chamber. The distributor housing can be manually rotated to adjust the basic ignition advance angle (that is, the ignition advance angle at idle speed), and there is also a vacuum advance device to provide different advance angles according to the change of the vacuum degree of the intake pipe.
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