Multi-fuel engine control with canister purge
Patent
·
OSTI ID:6569156
This patent describes a fuel control for a vehicle engine. It comprises: a fuel tank containing a liquid fuel mixture comprising first and second combustible fuels and having a volatility varying with the relative proportion of one of the first and second fuels, induction means effective to provide the liquid fuel mixture and air to the engine in a predetermined air/fuel ratio, a fuel composition sensor in the fuel conduit responsive to a physical parameter of the fuel mixture to generate a fuel composition signal indicative of the relative proportions of the relative proportions of the first and second fuels in the fuel mixture, canister means in fluid communication with fuel vapor in the fuel tank and effective to store fuel vapor therefrom, and canister purge means for establishing fluid communication from the canister means to the induction means for removal of fuel vapor from the canister means to the engine at a controlled purge rate. The canister purge means being responsive to the fuel composition signal to vary the purge rate as a function of the fuel composition.
- Assignee:
- General Motors Corp., Detroit, MI (USA)
- Patent Number(s):
- US 4945885; A
- Application Number:
- PPN: US s 7-453166
- OSTI ID:
- 6569156
- Country of Publication:
- United States
- Language:
- English
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