Patent ID: 8930125
Filing Date: 2015-01-06
Classification: B60L,G07C,Y02T

Abstract:
1. A method for determining fuel consumption and travel range of an electric hybrid vehicle, said vehicle including a main power source and a rechargeable electric energy source, said method comprising: determining an actual consumed fuel value that identifies how much actual fuel is being used by the main power source; determining a virtual consumed fuel flow value that is a function of a measured output current of the rechargeable electric energy source, using the equation: Virtual Fuel Flow=Battery Current×Battery Voltage/120,000/FCPS Efficiency, where FCPS is fuel cell power system, and where Battery Current is the measured output current of the rechargeable electric energy source and is adiusted by a current that is produced by an electric traction system during regenerative braking; determining a total consumed fuel value by adding the actual consumed fuel value and the virtual consumed fuel flow value; determining a fuel consumption value identifying the fuel consumed by the vehicle by dividing the total consumed fuel value by a distance the vehicle has travelled; determining an actual available fuel value of how much actual fuel is available on the vehicle; determining a virtual available fuel value as a function of the state-of-charge of the rechargeable electric energy source; adding the actual available fuel value and the virtual available fuel value to get a total available fuel value; and dividing the total available fuel value by the fuel consumption value to get the travel range of the vehicle.