This content is not included in your SAE MOBILUS subscription, or you are not logged in.
Chrysler Microprocessor Spark Advance Control
ISSN: 0148-7191, e-ISSN: 2688-3627
Published February 1, 1978 by SAE International in United States
Annotation ability available
Electronics suitable for engine control applications has steadily evolved from analog control systems to microprocessor based designs. The change in technology required in switching from analog to microprocessors has required sensor development, new analog to digital conversion techniques, and development of custom input/output circuits suitable for automotive applications.
By proper design of the microcomputer system, an engine control unit can be developed that is cost effective compared to conventional analog circuit techniques while providing additional flexibility. The primary limitation of a digital approach is the long lead time required to change the ROM pattern. This lead time can be reduced by combining PROM and ROM in the same system.