Supplemental fuel injector trigger circuit
AssigneeTechlusion Corporation
InventorWilliam E. Kirkpatrick
Life of this patent
Estimating the term…
Abstract
A Supplemental Fuel Injector Control Circuit includes a resistor adapted to connected between a voltage output port and an injector control port of an Engine Control Unit. The circuit also includes a diode having a cathode adapted to be connected to the injector control port and an anode adapted to be connected to both an end of a fuel injector coil and to an Auxiliary Fuel Injector Controller. The circuit is operable to allow modification of fuel injector cycle duration while preventing generation of an error code by the Engine Control Unit.
Claims25
A supplemental fuel injector trigger circuit comprising:
- a resistor having a first end adapted to be connected to both a voltage output port of an Engine Control Unit and a first end of a fuel injector coil, said resistor also having a second end adapted to be connected to a fuel injector control port of an Engine Control Unit;
- and
- a diode having a cathode adapted to be connected to both said fuel injector control port of said Engine Control Unit and said second end of said resistor, said diode also having an anode adapted to be connected to both a second end of said fuel injector coil and to an Auxiliary Fuel Injector Controller.
A supplemental fuel injector trigger circuit comprising:
- a resistor having a first end adapted to be connected to both a voltage output port of an Engine Control Unit and a first end of a fuel injector coil, said resistor also having a second end adapted to be connected to a fuel injector control port of an Engine Control Unit;
- an electronic switch having an input port and an output port with said output port also adapted to be connected to both said injector control port of an Engine Control Unit and said second end of said resistor, said electronic switch also having a control port that is adapted to be connected to a control port of an Auxiliary Fuel Injector Controller, said electronic switch responsive to a first signal applied to said control port to conduct current between said input and output ports, said electronic switch also responsive to a second signal being applied to said control port to block current from flowing between said input and output ports;
- a first diode having a cathode connected to said electronic switch input port, said diode also having an anode adapted to be connected to a second end of said fuel injector coil;
- and
- a second diode having an anode connected to said anode of said first diode, said second diode also having a cathode adapted to be connected to an input port of said Auxiliary Fuel Injector Controller.
A supplemental fuel injection circuit comprising:
- a resistor having a first end adapted to be connected to both a voltage output port of an Engine Control Unit and a first end of a fuel injector coil, said resistor also having a second end adapted to be connected to a fuel injector control port of an Engine Control Unit;
- a diode having an anode and cathode, said diode cathode connected to said second end of said resistor;
- and
- an electronic switch having an input port and an output port with said input port adapted to be connected to a second end of said fuel injector coil and said output port connected to said anode of said diode, said electronic switch also having a control port with said electronic switch being responsive to a first signal applied to said control port to conduct current between said input and output ports, said electronic switch also being responsive to a second signal being applied to said control port to block current from flowing between said input and output ports.
Dependencies are inferred from the claim text.