Automotive electronics is exposed to electromagnetic interference emanating from onboard and offboard sources. As a result of this inteference, electronic equipment may suffer temporary malfunctions and even permanent damage. Consequently the interference generated onboard the vehicle should be reduced and the influence of electromagnetic interference on the operation of the electronics should be minimized. The transient generating components of a car, examples of which are the alternator and the ignition system, should be designed for minimum emission of interference. Even so, transient suppression components such as metal-oxide varistors and avalanche diodes may be needed to suppress the transients. The shielding offered by the vehicle body many be further improved by shielding of individual subsystems and wiring. Communication between electronic subsystems should be dependable, which implies the utilization of shielded and/or twisted wires, differential transmission and dependable protocols. The microprocessors employed in typical automotive systems may execute redundant software that detects and corrects errors.
Electromagnetic compatibility considerations for automotive electronic systems
Elektromagnetische Verträglichkeit bei elektronischen Systemen im Automobil
1989
20 Seiten, 3 Tabellen, 21 Quellen
Aufsatz (Konferenz)
Englisch
Electromagnetic compatibility considerations for automotive electronic systems
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