Propellant substance regulation for an internal combustion engines

摘要

PURPOSE:To moderate the shock caused at the time of interrupting fuel supply, by effecting actual interruption of fuel supply after passing of a predetermined delay time from the time point when conditions for interrupting fuel supply are satisfied completely. CONSTITUTION:Output signals from a rotation sensor 1, a sensor 2 for detecting the temperature of cooling water, a throttle switch 3 for detecting full closing of the throttle valve and a ''top'' switch 4 for detecting that the transmission is located at its ''top'' position are put into a micro-computor 5, which carries out condition judgement through calculation of these input signals and interrupts fuel supply by controlling a fuel injection valve 11 at the time of deceleration satisfying the above- mentioned required conditions. Here, arrangement is such that the micro-computor 5 operates to interrupt fuel supply after passing of a predetermined delay time from the time point when the above conditions are satisfied, in case that the conditions are satisfied continously for the predetermined delay time.