Electronic control device

摘要

An electronic control device includes: a microprocessor that operates using electricity supplied from a battery through a switch operated in conjunction with an ignition switch, and a main power circuit; a volatile memory for temporarily storing data to be updated, the memory being operated using electricity supplied through the main power circuit, the electricity being also supplied from the battery constantly through an auxiliary power circuit as a backup power supply; an initial start signal generation unit for generating an initial start signal indicating that the ignition switch is turned on for the first time after electricity is supplied from the battery to the memory through the auxiliary power circuit; and a volatile memory initialization unit for initializing the memory according to the initial start signal when the ignition switch is turned on for the first time after electricity is supplied to the memory.