| 摘要 |
PURPOSE:To set the fuel-cut condition to the min. number of revolution in the degree where an engine does not stop by using the variation rate of the number of engine revolution, of course using the number of engine revolution, as the fuel-cut return conditions, in the captioned apparatus for fuel-cut control. CONSTITUTION:An operation-state detecting means IV including a revolution speed sensor II for detecting the numbef of revolution of an internal-combustion engine II and a throttle sensor III for detecting the perfect closure state of a throttle valve is installed. The output signal of the detection means IV is input into a fuel-cut control means V, and when the fuel-cut condition that the throttle valve is in the perfect closure state, and the number of engine revolution is over a prescribed value, control is performed to stop the fuel feed into the internal-combustion engine I. When fuel feed is suspended in the establishment of fuel-cut condition, if the number of engine revolution reduces by the variation amount over a prescribed value, fuel feed is started by the action of a fuel feed starting means IV. |
