Page 253 - 05. Subyek Teknik Mesin - Automobile Mechanical and Electrical Systems Automotive Technology Vehicle Maintenance and Repair (Vehicle Maintenance Repr Nv2) by Tom Denton

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Engine systems 237

Figure 2.314 Combustion taking place. (Source: Ford Media)

Table 2.2 Ignition systems
Type Conventional Electronic Programmed Distributorless
Trigger Mechanical Electronic Electronic Electronic

Advance Mechanical Mechanical Electronic Electronic
Voltage Inductive Inductive Inductive Inductive
source

Distribution Mechanical Mechanical Mechanical Electronic

Figure 2.315 Electronic ignition distributor and ignition module

Conventional ignition is the forerunner of the more advanced systems controlled
by electronics. It is worth mentioning at this stage, however, that the fundamental
operation of most ignition systems is very similar. One winding of a coil is
switched on and off, causing a high voltage to be induced in a second winding. Key fact
The basic types of ignition system can be classifi ed as shown in Table 2.2 .
Modern ignition systems now are
Modern ignition systems now are part of the engine management, which controls part of the engine management.
fuel delivery, ignition and other vehicle functions ( Fig. 2.315 ). These systems are
under continuous development and reference to the manufacturer’s workshop