Patent ID: 7527040
Filing Date: 2009-05-05
Classification: F02D,F02M

Abstract:
1. An auxiliary electronic fuel injection control, comprising: an isolation circuit connectable to a main control switch having an output voltage pulse and a ground; a pass-through switch in electrical communication with the isolation circuit and connectable to a fuel injector, the isolation circuit to substantially render the pass-through switch transparent to the main control switch; a re-driver switch in electrical communication with the pass-through switch and connected to the fuel injector and the ground, the re-driver switch including a resistor to sense the current running through the fuel injector; and an auxiliary controller in electrical communication with the pass-through switch, the re-driver switch, and with the ground, wherein the output voltage pulse triggers the auxiliary controller to turn the pass-through switch and the re-driver switch on and off to effectively alter a duration of current to the fuel injector.