ELECTRIC DRIVING RANGE CALCULATOR

• US 20120109413A1
• Filed: 10/27/2011
• Published: 05/03/2012
• Est. Priority Date: 10/29/2010
• Status: Active Grant

• Current Assignee: GM Global Technology Operations LLC (General Motors Company)
• Original Assignee: GM Global Technology Operations LLC (General Motors Company)
• Inventors: Bartnick, Brian K., Laws, Larry D., Smith, Irvin T., Perekattu, George K.
• Granted Patent: US 9,079,507 B2
• Time in Patent Office: Days
• US Class Current: 701/1
• CPC Class Codes: B60L 2200/26 Rail vehicles
• CPC Class Codes: B60L 2240/12 Speed
• CPC Class Codes: B60L 2250/16 by display
• CPC Class Codes: B60L 2260/52 drive range estimation, e.g. of estimation of available travel distance
• CPC Class Codes: B60L 2260/54 Energy consumption estimation
• CPC Class Codes: B60L 50/66 Arrangements of batteries
• CPC Class Codes: B60W 2510/244 Charge state
• CPC Class Codes: B60W 2510/305 Power absorbed by auxiliaries
• CPC Class Codes: B60W 2556/50 of positioning data, e.g. GPS [Global Positioning System] data
• CPC Class Codes: B60W 40/10 related to vehicle motion
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y02T 10/84 Data processing systems or methods, management, administration

Abstract

A method of and device for determining driving range for a vehicle operating with a rechargeable energy storage supply. The method includes performing a calculation based on a limited number of input parameters, including a driving distance, average speed, location and time of day. Other determinations, such as the possibility of using a battery power-depleting climate control system, as well as battery capacity and climate data for various seasonal and location factors may also be used in the calculations.

Claims

1. A method for determining a driving range of an electric-powered vehicle, the method comprising:

receiving a plurality of driving parameters selected from the group consisting essentially of segment distance, average speed, location and time of day into a driving range calculator;

calculating a value of at least one of an energy required to travel based upon the segment distance and average speed, driving time required to go a specified portion of the segment distance and energy required to go the specified portion;

determining if the segment distance can be completed based on the calculated values; and

outputting the driving range in a sensory-compatible format.

2. The method of claim 1, further comprising receiving at least one of battery capacity and climate data such that a determination of at least one of the calculated values takes into consideration calculation input created thereby.

3. The method of claim 1, wherein the energy required to travel based upon the segment distance and average speed comprises an energy required when a climate control system is not being substantially used.

4. The method of claim 3, wherein the energy required to go the specified portion corresponds to that energy used by a climate control system over the specified portion of the segment distance.

5. The method of claim 4, further comprising iteratively determining if the segment distance can be completed based on the calculated values based on incremental increases in the specified portion of the segment distance.

6. The method of claim 1, wherein the receiving is through a graphical user interface.

7. The method of claim 1, wherein the sensory-compatible format comprises a smart phone, a GPS device, personal digital assistant or driver information center.

8. The method of claim 1, wherein the empirical methodology comprises a DFSS methodology.

9. A device for calculating driving range of an electric-powered vehicle, the device comprising:

a graphical user interface configured to receive user inputs that correspond to a plurality of driving parameters comprising segment distance, average speed, location and time of day;

a computer comprising at least one processor and a non-transitory memory such that instructions stored in the memory are executed by the at least one processor;

instructions loaded into the memory of the computer to calculate the driving range based upon the inputs; and

an output configured to convey indicia of the calculated driving range to a user.

10. The device of claim 9, wherein the indicia of the calculated driving range comprises at least one of an estimated remaining range of the segment distance and an estimate of whether the segment distance can be completed based on remaining energy available from a battery power source.

11. The device of claim 10, wherein the instructions are configured to determine a value of at least one of (a) energy required to travel based upon the segment distance and average speed, (b) driving time required to go a specified portion of the segment distance and (c) energy required to go the specified portion such that the determined values are subsequently used to determine if the segment distance can be completed based on remaining energy available from a battery power source.

12. The device of claim 9, wherein the instructions are cooperative with at least one of a smart phone, a GPS device, personal digital assistant and vehicle driver information center.

13. The device of claim 9, further comprising memory storage for receiving at least one of battery capacity and climate data that can be used to adjust the energy required to travel based upon the segment distance and average speed and the energy required to go the specified portion.

14. The device of claim 13, wherein the energy required to travel based upon the segment distance and average speed comprises an energy required when a climate control system is not being substantially used.

15. The device of claim 14, wherein the energy required to go the specified portion corresponds to that energy used by a climate control system over the specified portion of the segment distance.

16. The device of claim 15, wherein the instructions are used to determine incremental increases in the specified portion of the segment distance, as well as how much energy is used in traversing the distance corresponding to the specified portion of the segment distance.

17. The device of claim 9, wherein at least a portion of the instructions are based on a DFSS methodology.

18. The device of claim 9, wherein the output is displayed on the graphical user interface.