CONSISTENT RANGE CALCULATION IN HYBRID VEHICLES WITH HYBRID AND PURE BATTERY ELECTRIC PROPULSION
First Claim
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 an output current of the rechargeable electric energy source;
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 indentifying 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.
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Accused Products
Abstract
A system and method for determining fuel consumption and travel range of an electric hybrid vehicle, such as an electric hybrid fuel cell vehicle. The method includes converting the output current of a battery to a virtual consumed fuel consumption flow value and then adding the virtual consumed fuel consumption flow value to an actual consumed fuel value to get a total consumed fuel value that is then divided by the travelled distance of the vehicle to get the fuel consumption of the vehicle. The method also includes converting the SOC of the battery to a virtual available fuel value and then adding the virtual available fuel value to an actual available fuel value to get a total available fuel value that is then divided by the fuel consumption to get the travel range of the vehicle.
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Citations
19 Claims
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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:
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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 an output current of the rechargeable electric energy source; 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 indentifying 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. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for determining fuel consumption of an electric hybrid vehicle, said vehicle including a main power source and a rechargeable electric energy source, said method comprising:
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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 an output current of the rechargeable electric energy source; determining a total consumed fuel value by adding the actual consumed fuel value and the virtual consumed fuel flow value; and determining a fuel consumption value indentifying the fuel consumed by the vehicle by dividing the total consumed fuel value by a distance the vehicle has travelled. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A method for determining a travel range of an electric hybrid vehicle, said vehicle including a main power source and a rechargeable electric energy source, said method comprising:
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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; determining a total available fuel value by adding the actual available fuel value and the virtual available fuel value; and determining the travel range of the vehicle by dividing the total available fuel value by a fuel consumption value. - View Dependent Claims (15, 16, 17, 18, 19)
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Specification