Method and apparatus for estimating the fuel consumption of a vehicle

摘要

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.

主权项

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.