| 摘要 |
PURPOSE:To improve controllability of a fuel controller, by controlling a feed amount of fuel through an ignition pulse and throttle valve opening for an air amount at least a prescribed value while through a feed amount of air and temperature for the air amount less than the prescribed value. CONSTITUTION:If an internal combustion engine is driven at higher speed than a value set by reference voltage Vref, correspondingly to speeds R0-R3 at this time and openings theta0-theta3 of a throttle valve 11, data T00-T33 of optimum feed amount of fuel are selected from a memory map, previously stored to ROM in a control circuit 16, to control a feed amount of fuel. On the other hand, when the engine is operated at a lower speed than the reference voltage Vref, pulse output 5a of a Karman's vortex street air flow meter is pulse width modulated reversely correspondingly to a temperature rise by an engine temperature signal 10 in a control circuit 23, and the feed amount of fuel is controlled by this modulated pulse width. |
