Patent ID: 6941931
Filing Date: 2005-09-13
Classification: F02D,F02M

Abstract:
1. A fuel injection system for an internal combustion engine having an intake pipe equipped with a throttle valve, an upstream fuel injector provided upstream from the throttle valve and a downstream fuel injector provided downstream from the throttle valve, said fuel injection system comprising: means for determining fuel injection quantities of the upstream and the downstream fuel injectors; means for detecting an intake temperature (TA) on the upstream side from an injection area of the upstream fuel injector; means for determining an intake temperature correction factor (KTA) on the basis of said intake temperature (TA) and the fuel injection quantity of one of the upstream and the downstream fuel injectors; and means for correcting at least one of said fuel injection quantities of the upstream and downstream fuel injectors on the basis of said intake temperature correction factor (KTA).