Deceleration controller for internal combustion engine

Abstract

Abstract PURPOSE:To set the number of recovery revolution at a low value, suppressing the recovery shock, by correcting the opening degree control quantity of an auxiliary air control valve by a certain value during the time from the stop of fuel feed to restart and restoring the opening degree control quantity after restart. CONSTITUTION:An auxiliary air control valve C installed in an auxiliary air passage B which makes a detour around a throttle valve A is controlled by an opening degree control means E, when a means D detects the perfect closed position of the throttle valve A. While, a fuel feeding means F stops fuel feed when the number of engine revolution becomes over the number of cut revolution, while if the number of engine revolution decreases to the number of recovery revolution, fuel feed is restarted. In this case, stop and restart of fuel feed are detected by the means G and H, and the opening degree control quantity is reduced by a prescribed quantity by the first means I during the time from the stop of fuel feed to restart. While, after the restart, the second means J corrects the opening degree control quantity so as to be gradually restored.

Inventors

• 👤 Shinpei Nakaniwa

Bibliographic Details