Fuel supply and diagnostics module
First Claim
1. A fuel supply and diagnostic module comprising:
- a fuel system including a fuel pump assembly in fluid communication with a fuel tank to supply fuel to a vehicle engine, a fuel level sensor assembly for measuring fuel levels within the fuel tank, and a leak detection assembly for detecting fuel system leaks; and
a fuel system control unit that includes controls and diagnostics for said fuel pump assembly, said fuel level sensor assembly, and said leak detection assembly wherein said fuel system control unit cooperates with an engine control unit to provide fuel to a vehicle engine.
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0 Petitions
Accused Products
Abstract
A fuel supply system includes one fuel supply and diagnostic module that is used to control various fuel supply system components. The fuel supply and diagnostics module includes a fuel system control unit that operates separately from an engine control unit. The engine control unit and fuel system control unit are electrically connected together via a two-wire connection. The fuel supply and diagnostics module includes a fuel pump with controls and diagnostics generated by the fuel system control unit. The fuel supply and diagnostics module also includes a fuel level sensor and leak detection apparatus that also have controls and diagnostic generated by the fuel system control unit. The fuel supply and diagnostics module is easily installed into a fuel tank as a single unit.
15 Citations
15 Claims
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1. A fuel supply and diagnostic module comprising:
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a fuel system including a fuel pump assembly in fluid communication with a fuel tank to supply fuel to a vehicle engine, a fuel level sensor assembly for measuring fuel levels within the fuel tank, and a leak detection assembly for detecting fuel system leaks; and
a fuel system control unit that includes controls and diagnostics for said fuel pump assembly, said fuel level sensor assembly, and said leak detection assembly wherein said fuel system control unit cooperates with an engine control unit to provide fuel to a vehicle engine. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for supplying fuel and generating fuel system diagnostics for a vehicle engine comprising the steps of:
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(a) generating engine control signals from an engine control unit;
(b) generating a fuel pump diagnostics signal and a fuel pump control signal to provide fuel to a vehicle engine;
(c) generating a fuel level sensor diagnostics signal and a fuel level sensor signal corresponding to a current fuel level;
(d) generating a leak detection diagnostics signal and a leak detection hardware control signal for controlling operation of a leak detection assembly; and
(e) generating the signals of steps (b) through (d) from a common fuel system control unit that operates independently from the engine control unit. - View Dependent Claims (12, 13, 14, 15)
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Specification