Patent ID: 6047679
Filing Date: 2000-04-11
Classification: F02D

Abstract:
A control apparatus for an internal combustion engine having a throttle valve and an accelerator pedal, comprising:a plurality of electronic throttle control systems for electrically driving the throttle valve of the internal combustion engine based on a degree of operation of the accelerator pedal;failure judgment means for determining failure states for the plurality of electronic throttle control systems, the failure judgment means being structured and arranged to determine whether each of the plurality of electronic throttle control systems have failed individually;intake air volume control means for driving the throttle valve in a closing direction and also for supplying a predetermined intake air volume to the internal combustion engine when the failure judgment means determines that all of the electronic throttle control systems have failed; andoutput suppression means for controlling the driving of the throttle valve by an electronic throttle control system that has not failed and also suppressing output of the internal combustion engine corresponding to the the degree of operation of the accelerator pedal when the failure judgment means determines that at least one but not all of the plural electronic throttle control systems has failed.