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The history of automotive electrical systems began in 1912 with an integrated starter/generator system (i.e. the Kettering DELCO system.). These systems were soon replaced by a separate starter and generator and later replaced by alternators, which now produce about 2kW. The 21st century will debut with intense interest in integrated starter/alternator/damper (ISAD) systems in the 5–20 kW range. This large increase in available electric power will catalyze many new luxury, performance and convenience features––and provides modest amounts of supplemental traction. The mechatronic technology of these systems will be nearly identical to more powerful parallel hybrid systems. This paper presents an advanced ISAD system for internal combustion (IC) engines and hybrid electric vehicle applications to reduce fuel consumption, reduce emissions, and enhance energy efficiency.