Patent ID: 6644291
Filing Date: 2003-11-11
Classification: F02D,G05B

Abstract:
A control system for controlling an amount of fuel delivered to a cylinder of an internal combustion engine, said engine having an intake manifold communicating with a purge vapor system and said cylinder, said control system comprising:a first sensor generating a first signal indicative of a current air charge delivered to said cylinder; a second sensor generating a second signal indicative of a purge vapor flow; and a controller operably connected to said first and second sensors, said controller configured to determine a first amount of fuel to deliver to said cylinder based on said first signal and a desired air-fuel ratio, said controller configured to calculate a first air-fuel ratio change value based on said first signal, said controller configured to calculate a second air-fuel ratio change value based on said second signal, said controller configured to deliver a second amount of fuel to said cylinder based on said first amount of fuel and said first and second air-fuel ratio change values.