Patent ID: 7401595
Filing Date: 2008-07-22
Classification: F02D,F02P

Abstract:
1. A fuel injection device for an internal combustion engine comprising: an injector that injects fuel to be supplied to the internal combustion engine; an injector drive circuit that uses a battery to which various loads are connected as power supply and applies a driving voltage to said injector while receiving an injection command signal; and a control portion that is provided to operate when a power supply voltage is provided from said battery through a power supply circuit, and provides the injection command signal to said injector drive circuit at fuel injection timing of said internal combustion engine, wherein said fuel injection device further comprises load driving stopping means for stopping supply of electric power to a load other than said injector drive circuit and said control portion and through which a load current equal to or higher than a set value passes in operation among the loads connected to said battery, during load driving stop time set to be equal to or shorter than a signal width of said injection command signal, when said injection command signal is generated.