Engine control with fuel quality sensor
3 Assignments
0 Petitions
Accused Products
Abstract
A system is described using a fuel quality sensor for controlling various aspects of engine operation. In particular, an acoustic wave sensor is utilized to measure viscosity and density of gasoline fuels. This measurement is utilized to predict engine combustion quality during an engine start. Based on the prediction, the method adjusts engine operating parameters (such as fuel injection amount and ignition timing) to achieve improved vehicle driveability and engine combustion.
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Citations
29 Claims
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1-15. -15. (canceled)
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16. A system for a vehicle having a fuel tank coupled to an engine, comprising:
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an acoustic wave sensor for sensing a quality of liquid fuel stored in the fuel tank; and
a controller for adjusting an amount of injected fuel based on said sensor. - View Dependent Claims (17)
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18. A system for a vehicle having a fuel tank coupled to an engine, comprising:
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an acoustic wave sensor for sensing a quality of liquid fuel stored in the fuel tank; and
a controller for adjusting an ignition timing of the engine based on said sensor.
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19. A system for a vehicle having a fuel tank coupled to an engine, comprising:
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a sensor for sensing viscosity of liquid fuel stored in the fuel tank; and
a controller for adjusting an amount of injected fuel based on said sensor. - View Dependent Claims (27, 28)
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20. A system for a vehicle having a fuel tank coupled to an engine, comprising:
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a sensor for sensing viscosity of liquid fuel stored in the fuel tank; and
a controller for adjusting an amount of injected fuel during an engine start based on said sensor. - View Dependent Claims (21, 22, 23)
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24-26. -26. (canceled)
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29-33. -33. (canceled)
Specification