Patent ID: 6250285
Filing Date: 2001-06-26
Classification: F02D

Abstract:
A common-rail, fuel-injection system comprising, a common rail storing therein a fuel discharged out of a high-pressure fuel pump, injectors for spraying the fuel fed from the common rail into combustion chambers, detecting means for monitoring engine operating conditions, and a controller unit for finding a desired quantity of fuel to be injected out of the injectors dependent on signals from the detecting means and controlling fuel injection out of the injectors in accordance with the desired quantity of fuel injected, wherein the controller unit finds a quantity of dynamic fuel leakage out of the injectors upon the fuel injection, and subtracts the quantity of dynamic fuel leakage from the quantity of fuel supplied to the injectors from the common rail to find an actual quantity of fuel injected, whereby the fuel injection out of the injectors is controlled so as to make the desired quantity of fuel injected of the actual quantity of fuel injected.