Patent ID: 8281167
Filing Date: 2012-10-02
Classification: B60W,G06F

Abstract:
1. An electronic control apparatus for vehicles, comprising a main microcomputer which is activated when a given activation condition is met; a sub-microcomputer to which power supply voltage is supplied based on a power control signal controlling power supply to the sub-microcomputer, the power control signal being outputted by the main microcomputer; a first power supply unit that supplies, via a first supply line, power supply voltage to the main microcomputer to activate the main microcomputer; and a second power supply unit that supplies, via a second supply line different from the first supply line, power supply voltage to the sub-microcomputer to activate the sub-microcomputer, when the second power supply unit receives the power control signal from the main microcomputer, wherein the main microcomputer includes determining means for determining whether or not the sub-microcomputer should be made to operate and switching means for performing a switchover between output and non-output of the power control signal to the second power supply unit based on results of the determining means whereby the power supply to the sub-microcomputer is controlled; the first power supply unit includes