Relating to range prediction in electric vehicles
AssigneeJaguar Land Rover Limited
InventorsKarmjit GREWAL, Andrew BURROWS
Life of this patent
Estimating the term…
Abstract
A method of predicting the range of an electric vehicle comprises determining a range value during a current vehicle operating cycle using a first range model, wherein the first range model is dependent on an energy consumption rate value recorded during a previous 5 vehicle operating cycle.
Claims20
A method of determining a predicted range of an electric vehicle, the method comprising determining a first current range value during a current vehicle operating cycle using a first range model,
- wherein the first range model is dependent on an energy consumption rate value recorded during a previous vehicle operating cycle;
- wherein determining the first current range value includes calculating a current energy gradient value as a ratio of a distance travelled during the current vehicle operating cycle and energy consumed during the current vehicle operating cycle;
- and
- wherein determining the first current range value includes calculating a product of the current energy gradient value and instantaneous measured energy available in an energy store of the electric vehicle;
- the first current range value being equal to the product of the current energy gradient value and the instantaneous measured energy available in the energy store of the electric vehicle.
A processing system for an electric vehicle having a controller configured to implement a method of determining a predicted range of the electric vehicle, the controller configured to determine a first current range value during a current vehicle operating cycle using a first range model,
- wherein the first range model is dependent on an energy consumption rate value recorded during a previous vehicle operating cycle;
- wherein determining the first current range value includes calculating a current energy gradient value as a ratio of a distance travelled during the current vehicle operating cycle and energy consumed during the current vehicle operating cycle;
- and
- wherein determining the first current range value includes calculating a product of the current energy gradient value and instantaneous measured energy available in an energy store of the electric vehicle;
- the first current range value being equal to the product of the current energy gradient value and the instantaneous measured energy available in the energy store of the electric vehicle.
An electric vehicle including an energy store, an electric propulsion means and a processing system having a controller configured to implement a method of determining a predicted range of the electric vehicle, the controller configured to determine a first current range value during a current vehicle operating cycle using a first range model,
- wherein the first range model is dependent on an energy consumption rate value recorded during a previous vehicle operating cycle;
- wherein determining the first current range value includes calculating a current energy gradient value as a ratio of a distance travelled during the current vehicle operating cycle and energy consumed during the current vehicle operating cycle;
- and
- wherein determining the first current range value includes calculating a product of the current energy gradient value and instantaneous measured energy available in the energy store of the electric vehicle;
- the first current range value being equal to the product of the current energy gradient value and the instantaneous measured energy available in the energy store of the electric vehicle.
Dependencies are inferred from the claim text.