Identifying a fuel type
First Claim
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1. A method for determining a type of fuel burned by an engine in a vehicle, the method comprising:
- obtaining at least two output parameters of an on board diagnostic (OBD) system of the vehicle;
generating respective estimates of the fuel type based on the at least two output parameters, using a different fuel type identifying method for each respective estimate; and
determining the fuel type based on the respective estimates.
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Abstract
Aspects of the disclosure are directed to estimating the type fuel used by a vehicle. As may be implemented in accordance with one or more embodiments, a type of fuel burned by an engine in a vehicle is estimated by obtaining output parameters of an on board diagnostic (OBD) system of the vehicle. Respective estimates of the fuel type are generated based on the output parameters, using a different fuel type identifying method for each respective estimate, and the fuel type is determined based on the respective estimates.
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20 Claims
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1. A method for determining a type of fuel burned by an engine in a vehicle, the method comprising:
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obtaining at least two output parameters of an on board diagnostic (OBD) system of the vehicle; generating respective estimates of the fuel type based on the at least two output parameters, using a different fuel type identifying method for each respective estimate; and determining the fuel type based on the respective estimates. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An apparatus comprising:
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a first circuit module configured and arranged to obtain at least two output parameters of an on board diagnostic (OBD) system of a vehicle having an engine that operates using a type of fuel; a second circuit module configured and arranged to generate respective estimates of the fuel type based on the at least two output parameters, using a different fuel type identifying method for each respective estimate; and a third circuit module configured and arranged to determine the fuel type based on the respective estimates. - View Dependent Claims (15, 16, 17, 18)
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19. A method for determining a fuel type of fuel burned by an engine in a vehicle, the method comprising:
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obtaining at least two output parameters of an on board diagnostic (OBD) system of the vehicle, the at least two output parameters being selected from the group consisting of a parameter indicative of whether the engine is being throttled, a parameter indicative of whether exhaust gases exhibit properties in a range corresponding to a particular fuel type, a parameter indicative of fuel pressure, and a combination thereof; and determining the fuel type based on the at least two output parameters. - View Dependent Claims (20)
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Specification