Start control device in fuel supply system for internal combustion engine

摘要

In combination with a start control device in a fuel supply system for an internal combustion engine including an actuator having a step motor therein as a drive source and a control circuit for controlling the step motor wherein the actuator serves to control at least one of the amounts of fuel and air to be supplied to the engine, the improvement comprising a power-off detecting circuit for detecting stop of power supply to the control circuit, an auxiliary power circuit for supplying electric power to the control circuit and the step motor for a predetermined period of time in response to a detecting signal from the power-off detecting circuit and an actuator driving timer for feeding a predetermined actuating signal to the step motor in response to the detecting signal from the power-off detecting circuit.