A throttle valve control device for an internal combustion engine

摘要

The invention relates to a control method for an internal combustion engine in which, when an emergency travelling condition is judged and if no depression of an accelerator pedal occurs and if the speed of an automobile is zero, the operating conditions of the internal combustion engine are switched over to an emergency mode, wherein at the time of abnormal condition a warning lamp is lighted (S125), a base fuel amount is calculated based on the opening degree of the throttle valve and an engine speed (S126), and an ignition timing of the engine is retarded with respect to the ignition timing during the normal condition (S127).