Automobile ignition systems can be divided into ordinary (contact) ignition systems, non-contact ignition systems, and microcomputer-controlled ignition systems. The working process basically cycles in the following order: primary current on – primary current off ( At this time, the piston of a certain cylinder is at a certain angle before the compression top dead center)—the primary coil generates self-inductance electromotive force (about 300V)—the secondary coil mutual inductance generates pulse high voltage (about 6000～30000V)—the spark plug appears electric spark .
The lead-out lines that the ignition module of the non-contact ignition system must have: 2 power input lines (pins 4 and 5) controlled by the ignition switch, and signal input lines from the signal generator (the signal generator and the distributor shaft are integrated) 3 lines (pins 5, 5, and 3, of which pin 5 is for the power line of the signal generator), and 2 lines (pins 1 and 2) for the input and output of the primary current.
Automotive lighting systems generally consist of headlights, width indicator lights (position lights), tail lights (rear width indicator lights), license plate lights, instrument lights, and interior lights, among which headlights are divided into high beam lights and low beam lights , controlled with a dimmer switch.