Method and apparatus for estimating the fuel consumption of a vehicle
First Claim
1. A method of estimating a fuel consumption of a vehicle with an engine, said engine having an overall power comprising a rolling resistance power component, an aerodynamic resistance power component and an acceleration power component, said method comprising the steps of:
- estimating respective values of said components, said values dependent on a respective plurality of vehicle parameters, including vehicle mass or frontal area, by obtaining a reading of at least one of said parameters from an on board diagnostic system of said vehicle;
estimating an overall power value for said overall power by summing said estimated respective values;
obtaining an energy value of a fuel used by the vehicle; and
obtaining a first fuel consumption estimate by dividing said overall power value by said fuel energy value and by a predetermined engine efficiency value.
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Abstract
A method of estimating the fuel consumption of a vehicle, said method comprising the steps of estimating an overall power of said vehicle, by estimating a rolling power component, an aerodynamic resistance component and an acceleration component, using at least one parameter obtained from an on board diagnostic system of the vehicle; determining the type of fuel used by the vehicle; and estimating said fuel consumption by summing said components of said overall power and dividing by the energy value of said fuel type and by a predetermined engine efficiency value.
79 Citations
20 Claims
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1. A method of estimating a fuel consumption of a vehicle with an engine, said engine having an overall power comprising a rolling resistance power component, an aerodynamic resistance power component and an acceleration power component, said method comprising the steps of:
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estimating respective values of said components, said values dependent on a respective plurality of vehicle parameters, including vehicle mass or frontal area, by obtaining a reading of at least one of said parameters from an on board diagnostic system of said vehicle; estimating an overall power value for said overall power by summing said estimated respective values; obtaining an energy value of a fuel used by the vehicle; and obtaining a first fuel consumption estimate by dividing said overall power value by said fuel energy value and by a predetermined engine efficiency value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An apparatus for estimating a fuel consumption of a vehicle with an engine, said engine having an overall power comprising a rolling resistance power component, an aerodynamic resistance power component and an acceleration power component, said apparatus comprising:
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a first module configured and arranged to estimate respective values of said components, said values dependent on a respective plurality of vehicle parameters, including vehicle mass or frontal area, by obtaining a reading of at least one said parameter from an on board diagnostic system of said vehicle; and a second module coupled to receive the estimated respective values from the first module and configured and arranged to sum said estimated respective values to estimate a value for said overall power, obtain an energy value of a fuel used by the vehicle, and obtain a first fuel consumption estimate by dividing said overall power value by said fuel energy value and by a predetermined engine efficiency value. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification