×

Determination of deviation of vehicle range or fuel economy

  • US 9,707,909 B2
  • Filed: 09/16/2015
  • Issued: 07/18/2017
  • Est. Priority Date: 09/16/2015
  • Status: Active Grant
First Claim
Patent Images

1. A method comprising:

  • obtaining inputs, via one or more sensors, for one or more factors having an effect on energy performance for a vehicle; and

    determining, via a processor, a change in expected range for the vehicle, a change in expected fuel economy for the vehicle, or both, from the one or more factors based on the inputs;

    wherein the step of determining the change in expected range, the change in expected fuel economy, or both, comprises determining a difference between an actual distance travelled by the vehicle and an expected distance for the vehicle to travel, the difference based on the one or more factors, using the inputs;

    wherein the difference is determined at least in part by;

    determining a ratio of energy usage to total available energy;

    calculating a product of the ratio and the expected distance; and

    subtracting the product from the actual distance travelled.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×