Patent ID: 7367320
Filing Date: 2008-05-06
Classification: F02B,F02D,Y02T

Abstract:
1. A fuel control system for an internal combustion engine having an intake passage, a compressor provided in said intake passage, a throttle valve disposed downstream of said compressor, a bypass passage connecting an upstream side of said compressor to a downstream side of said compressor, and an air bypass valve provided in said bypass passage, said fuel control system comprising: intake pressure detection means for detecting an intake pressure on a downstream side of said throttle valve; rotational speed detecting means for detecting a rotational speed of said engine; opening operation state determining means for determining an opening operation state of said air bypass valve; intake air flow rate calculating means for calculating an intake air flow rate of said engine based on the rotational speed of said engine and the intake pressure, which are detected when said air bypass valve is in the opening operation state; and fuel amount control means for controlling an amount of fuel supplied to said engine according to the calculated intake air flow rate.