Engine start-up controller controls field amount of series coils of compound-wound motor, so that field amount is maximum from engine start-up to combustion start state and field amount is reduced after starting combustion

摘要

An electronic control unit (2) controls field amount of series coils (7,8) of a compound-wound motor (3), so that the field amount is maximum from engine start-up to combustion start state and the field amount is reduced after starting combustion.