Page 340 - 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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322 Automobile mechanical and electrical systems
Figure 3.129 Inside a remote key
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Figure 3.130 Coded key: 1, coded key; 2, harness; 3, ECU; 4, malfunction indicator light (MIL).
(Source: Ford Motor Company)
3.4.8 Safety systems
Active safety relates to any development designed to actively avoid accidents. It
can be considered under four general headings:
Defi nition handling safety
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physiological safety
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Passive and active safety
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features perceptual safety
Passive safety features are used operational safety.
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during an unavoidable accident. Passive safety relates to developments that protect the occupants of the vehicle
Active safety features work to avoid
the accident in the fi rst place. in the event of an accident ( Fig. 3.131 ). Air bags are a good example of this.
A seat belt, seat belt tensioner and an air bag are at present the most effective
restraint system in the event of a serious accident. At speeds in excess of
