SYSTEM AND METHOD FOR OPTIMIZING A DRIVING ROUTE FOR A VEHICLE

• US 20120185118A1
• Filed: 01/19/2011
• Published: 07/19/2012
• Est. Priority Date: 01/19/2011
• Status: Abandoned Application

• Current Assignee: GM Global Technology Operations LLC (General Motors Company)
• Original Assignee: GM Global Technology Operations LLC (General Motors Company)
• Inventors: Tate, Edward D. Jr.
• Application Number:
  US13/009,141
• Publication Number:
  US 20120185118A1
• Time in Patent Office: Days
• US Class Current: 701/22
• CPC Class Codes: B60L 15/2045 for optimising the use of energy
• CPC Class Codes: B60L 2240/64 Road conditions
• CPC Class Codes: B60L 2250/10 by alarm
• CPC Class Codes: B60L 2250/16 by display
• CPC Class Codes: G01C 21/3469 Fuel consumption; Energy use; Emission aspects
• CPC Class Codes: G01C 21/3697 Output of additional, non-guidance related information, e.g. low fuel level G01C21/3679 takes precedence
• CPC Class Codes: Y02T 10/64 Electric machine technologies in electromobility
• CPC Class Codes: Y02T 10/72 Electric energy management in electromobility
• CPC Class Codes: Y02T 90/16 Information or communication technologies improving the operation of electric vehicles

Abstract

A vehicle includes a power source, an energy storage device, a navigation system, and a controller. The power source is configured to drive the vehicle. The energy storage device is configured to supply energy to the power source. The navigation system includes a memory location. The controller is configured for determining an optimized route for the vehicle driving on a plurality of roads and road segments, as a function of powertrain limitations of the vehicle. The optimized rout for the vehicle may be presented to the driver of the vehicle on a visual display screen.

Claims

1. A method of optimizing a route for a vehicle driving on a plurality of roads, the method comprising:

recording information in a memory location relating to the plurality of roads, including;

a geographical location of a plurality of road segments, topographical information pertaining to the plurality of road segments, and at least one intersection defined between one of the plurality of roads and at least two of the plurality of road segments;

geographically locating the vehicle on the one of the plurality of roads;

identifying at least one of the plurality of road segments likely to be driven upon by the vehicle in the future;

determining powertrain limitations of the vehicle;

modeling the at least one of the plurality of road segments likely to be driven upon by the vehicle in the future and the determined powertrain limitations of the vehicle to predict if the vehicle can drive upon the at least one of the plurality of road segments likely to be driven upon by the vehicle without a substantial degradation of vehicle operating performance;

identifying at least one of the plurality of road segments likely to be driven upon by the vehicle that has been determined to not result in a substantial degradation of vehicle operating performance;

locating a first intersection and a second intersection;

wherein the first intersection is defined between the identified at least one of the plurality of road segments likely to be driven upon by the vehicle that has been determined to not result in a substantial degradation of vehicle operating performance and the one of the plurality of roads the vehicle is currently being driven upon;

wherein the second intersection is defined between the identified at least one of the plurality of road segments likely to be driven upon by the vehicle that has been determined to not result in a substantial degradation of vehicle performance and the identified at least one of the plurality of roads likely to be driven upon by the vehicle such that the at least one of the plurality of road segments extends between the first and second intersection; and

alerting a driver of the vehicle of the location of the intersection where the vehicle may enter the at least one of the plurality of road segments likely to be driven upon by the vehicle that has been determined to not result in a substantial degradation of vehicle operating performance.

2. A method, as set forth in claim 1, wherein alerting a driver is further defined as displaying the location of the intersection where the vehicle may enter the at least one of the plurality of road segments likely to be driven upon by the vehicle that has been determined to not result in a substantial degradation of vehicle operating performance on a visual display screen.

3. A method, as set forth in claim 2, wherein the visual display screen presents a map including:

the plurality of roads, the plurality of road segments, the at least one intersection defined between one of the plurality of roads and at least two road segments, and the location of the vehicle relative to the roads and road segments.

4. A method, as set forth in claim 3, wherein alerting the driver is further defined as highlighting the at least one of the plurality of road segments likely to be driven upon by the vehicle that has been determined to not result in a substantial degradation of vehicle operating performance on the map on the visual display screen.

5. A method, as set forth in claim 3, further comprising capturing an image of a forward view from a front of the vehicle with a camera, the image including the one of the plurality of roads that the vehicle is operating upon;

and

wherein the visual display screen presents the image of the forward view from the front of the vehicle and the map.

6. A method, as set forth in claim 2, wherein alerting the driver is further defined as displaying feedback to the driver on visual display screen that includes at least one road segment that would not result in a substantial degradation of vehicle operating performance.

7. A method, as set forth in claim 6, wherein displaying feedback to the driver on the display screen that includes at least one road segment that would not result in a substantial degradation of vehicle operating performance is further defined as displaying at least one directional icon on the visual display screen that indicates a direction of travel of the vehicle for the at least one road segment that would not result in a substantial degradation of vehicle operating performance.

8. A method, as set forth in claim 7, further comprising displaying on the visual display screen a distance associated with the at least one road segment that would not result in a substantial degradation of vehicle operating performance.

9. A method, as set forth in claim 2, wherein alerting the driver is further defined as displaying feedback to the driver on the visual display screen that includes at least one road segment that would result in a substantial degradation of vehicle performance.

10. A method, as set forth in claim 9, wherein displaying feedback to the driver on the display screen that includes at least one road segment that would result in a substantial degradation of vehicle operating performance is further defined as displaying at least one directional icon on the visual display screen that indicates a direction of travel of the vehicle for the at least one road segment that would result in a substantial degradation of vehicle operating performance.

11. A method, as set forth in claim 9, wherein displaying feedback to the driver on the visual display screen that includes at least one road segment that would result in a substantial degradation of vehicle operating performance is further defined as displaying at least one choice feedback icon on the visual display screen that indicates that the at least one road segment that would result in a substantial degradation of vehicle operating performance is a bad choice.

13. A method, as set forth in claim 1, further comprising transmitting an audio message pertaining to the location of the intersection where the vehicle may enter the at least one of the plurality of road segments likely to be driven upon by the vehicle that has been determined to not result in a substantial degradation of vehicle operating performance through a speaker.

12. (canceled)

14. A vehicle comprising:

a power source configured to drive the vehicle;

an energy storage device configured to supply energy to the power source; and

a navigation system having a memory location and a controller;

wherein the controller is configured for;

recording information in the memory location relating to a plurality of roads, including;

a geographical location of a plurality of road segments, topographical information pertaining to the plurality of road segments, and at least one intersection defined between one of the plurality of roads and at least two of the plurality of road segments;

geographically locating the vehicle on the one of the plurality of roads;

identifying at least one of the plurality of road segments likely to be driven upon by the vehicle in the future;

determining a state of charge (SOC) of the energy storage device to assess powertrain limitations of the vehicle;

modeling the at least one of the plurality of road segments likely to be driven upon by the vehicle in the future and the determined powertrain limitations of the vehicle to predict if the vehicle can drive upon the at least one of the plurality of road segments likely to be driven upon by the vehicle without a substantial degradation of vehicle operating performance;

identifying at least one of the plurality of road segments likely to be driven upon by the vehicle that has been determined to not result in a substantial degradation of vehicle operating performance;

locating a first intersection and a second intersection;

wherein the first intersection is defined between the identified at least one of the plurality of road segments likely to be driven upon by the vehicle that has been determined to not result in a substantial degradation of vehicle operating performance and the one of the plurality of roads the vehicle is currently being driven upon;

wherein the second intersection is defined between the identified at least one of the plurality of road segments likely to be driven upon by the vehicle that has been determined to not result in a substantial degradation of vehicle performance and the identified at least one of the plurality of roads likely to be driven upon by the vehicle such that the at least one of the plurality of road segments extends between the first and second intersection; and

alerting a driver of the vehicle of the location of the intersection where the vehicle may enter the at least one of the plurality of road segments likely to be driven upon by the vehicle that has been determined to not result in a substantial degradation of vehicle operating performance.

15. A vehicle, as set forth in claim 14, wherein the navigation system includes a visual display screen configured for displaying the location of the intersection where the vehicle may enter the at least one of the plurality of road segments likely to be driven upon by the vehicle that has been determined to not result in a substantial degradation of vehicle operating performance.

16. A vehicle, as set forth in claim 15, wherein the visual display screen is configured to present a map including:

the plurality of roads, the plurality of road segments, the at least one intersection defined between one of the plurality of roads and at least two road segments, and the location of the vehicle relative to the roads and road segments.

17. A method, as set forth in claim 15, wherein the visual display screen is configured to display highlighting of the at least one of the plurality of road segments likely to be driven upon by the vehicle that has been determined to not result in a substantial degradation of vehicle operating performance on the map on the visual display screen.

18. A vehicle, as set forth in claim 15, further comprising a camera configured to capture an image of a forward view from a front of the vehicle;

wherein the image includes the one of the plurality of roads that the vehicle is operating upon; and

wherein the visual display screen is configured to present the image of the forward view from the front of the vehicle and the map.

19. A vehicle, as set forth in claim 15, further comprising a speaker configured to transmit an audio message pertaining to the location of the intersection where the vehicle may enter the at least one of the plurality of road segments likely to be driven upon by the vehicle that has been determined to not result in a substantial degradation of vehicle operating performance.

20. A navigation system configured to optimize a driving route for a vehicle driving on roads, the navigation system comprising:

a visual display screen;

a memory location; and

a controller configured for;

recording information in the memory location relating to a plurality of roads, including;

a geographical location of a plurality of road segments, topographical information pertaining to the plurality of road segments, and at least one intersection defined between one of the plurality of roads and at least two of the plurality of road segments;

geographically locating the vehicle on the one of the plurality of roads;

identifying at least one of the plurality of road segments likely to be driven upon by the vehicle in the future;

determining powertrain limitations of the vehicle;

modeling the at least one of the plurality of road segments likely to be driven upon by the vehicle in the future and the determined powertrain limitations of the vehicle to predict if the vehicle can drive upon the at least one of the plurality of road segments likely to be driven upon by the vehicle without a substantial degradation of vehicle operating performance;

identifying at least one of the plurality of road segments likely to be driven upon by the vehicle that has been determined to not result in a substantial degradation of vehicle operating performance;

locating a first intersection and a second intersection;

wherein the first intersection is defined between the identified at least one of the plurality of road segments likely to be driven upon by the vehicle that has been determined to not result in a substantial degradation of vehicle operating performance and the one of the plurality of roads the vehicle is currently being driven upon;

wherein the second intersection is defined between the identified at least one of the plurality of road segments likely to be driven upon by the vehicle that has been determined to not result in a substantial degradation of vehicle performance and the identified at least one of the plurality of roads likely to be driven upon by the vehicle such that the at least one of the plurality of road segments extends between the first and second intersection; and

alerting a driver of the vehicle on the visual display screen of the location of the intersection where the vehicle may enter the at least one of the plurality of road segments likely to be driven upon by the vehicle that has been determined to not result in a substantial degradation of vehicle operating performance.