Method for operating hybrid vehicle

• US 8,918,240 B2
• Filed: 03/15/2013
• Issued: 12/23/2014
• Est. Priority Date: 03/15/2013
• Status: Active Grant

• Current Assignee: GM Global Technology Operations LLC (General Motors Company)
• Original Assignee: GM Global Technology Operations LLC (General Motors Company)
• Inventors: Manickaraj, Mark A., Kothari, Aniket, Marsh, Richard A., Ziehr, Lawrence P., Weigert, Norman J., Szymczyk, Rick W., Zettel, Andrew M., Cory, Danielle A.
• Primary Examiner(s): Zanelli, Michael J
• Application Number:
  US13/842,823
• Publication Number:
  US 20140277878A1
• Time in Patent Office: 648 Days
• Field of Search: None
• US Class Current: 701/22
• CPC Class Codes: B60W 20/00 Control systems specially adapted for hybrid vehicles hybrid vehicle design, B60K6/00; electric vehicles B60L
• CPC Class Codes: B60W 20/12 using control strategies taking into account route information estimation or calculation of non-directly measurable driving parameters B60W40/00
• CPC Class Codes: B60W 2050/0022 Gains, weighting coefficients or weighting functions
• CPC Class Codes: B60W 2510/244 Charge state
• CPC Class Codes: B60W 2510/246 Temperature
• CPC Class Codes: B60W 2520/10 Longitudinal speed
• CPC Class Codes: B60W 50/14 Means for informing the driver, warning the driver or prompting a driver intervention
• CPC Class Codes: Y10S 903/903 having energy storing means, e.g. battery, capacitor

Abstract

A method and system used to identify an optimal hybrid vehicle operating mode based on a variety of potential factors, and then recommend the optimal operating mode to the driver so that they can make an informed decision regarding their operating mode selection. In one embodiment, the method uses geographic-, vehicle- and/or environmental-related factors to establish one or more operating zones, monitors the location of the hybrid vehicle and determines when it is within one of the operating zones, and then determines an operating mode that is optimal for that particular operating zone.

Claims

1. A method for operating a hybrid vehicle with different operating modes, comprising the steps of:

(a) retrieving geographic data for one or more areas of interest;

(b) retrieving a current location of the hybrid vehicle;

(c) using the geographic data and a vehicle-related factor pertaining to a state of the hybrid vehicle to establish one or more operating zones, each operating zone is associated with at least one area of interest and defines an area where a particular operating mode is recommended for the hybrid vehicle, and the size and/or shape of at least one operating zone is dynamically adjusted at least partially based on the vehicle-related factor while the hybrid vehicle is operating; and

(d) using a control unit to determine when the current location of the hybrid vehicle is within an operating zone where a particular operating mode is recommended for the hybrid vehicle.

2. The method of claim 1, wherein step (a) further comprises retrieving geographic data for a plurality of areas of interest from one or more databases maintained either on the hybrid vehicle or at a remote facility.

3. The method of claim 1, wherein step (c) further comprises using a static radius to establish an operating zone, the static radius creates an imaginary area around a particular area of interest that generally does not change while the hybrid vehicle is operating, and step (d) further comprises determining when the current location of the hybrid vehicle is within an operating zone by determining when the hybrid vehicle is within the imaginary area.

4. The method of claim 1, wherein step (c) further comprises using a dynamic radius to establish an operating zone, the dynamic radius creates an imaginary area around a particular area of interest that generally changes while the hybrid vehicle is operating, and step (d) further comprises determining when the current location of the hybrid vehicle is within an operating zone by determining when the hybrid vehicle is within the imaginary area.

5. The method of claim 4, wherein step (c) further comprises using a dynamic radius to establish a mountain zone having an imaginary area that is based on the dynamic radius and generally changes while the hybrid vehicle is operating, and the dynamic radius is based on at least one mountain-related factor and at least one vehicle-related factor selected from the group consisting of:

a vehicle speed, a battery state-of-charge (SOC), a battery state-of-health (SOH), a battery temperature, or the presence of an energy load in the hybrid vehicle.

6. The method of claim 4, wherein step (c) further comprises using a dynamic radius to establish an environmental zone having an imaginary area that is based on the dynamic radius and generally changes while the hybrid vehicle is operating, and the dynamic radius is based on at least one environmental-related factor and at least one vehicle-related factor selected from the group consisting of:

a vehicle speed, a battery state-of-charge (SOC), a battery state-of-health (SOH), a battery temperature, or the presence of an energy load in the hybrid vehicle.

7. The method of claim 1, wherein step (c) further comprises using geographic data to establish a mountain zone that is associated with at least one mountain and defines an area where a mountain mode is recommended for the hybrid vehicle, and the geographic data includes at least one item selected from the group consisting of:

a mountain identifier, a mountain location, a mountain elevation, a mountain zone size, or a radius.

8. The method of claim 1, wherein step (c) further comprises using geographic data to establish an environmental zone that is associated with at least one environmental area and defines an area where an environmental mode is recommended for the hybrid vehicle, and the geographic data includes at least one item selected from the group consisting of:

an area identifier, an area location, an environmental parameter, an environmental zone size, or a radius.

9. The method of claim 1, wherein step (c) further comprises using the geographic data to establish a first operating zone associated with a first area of interest and a second operating zone associated with a second area of interest, and step (d) further comprises recommending a first operating mode when the hybrid vehicle is within the first operating zone and recommending a second operating mode when the hybrid vehicle is within the second operating zone, wherein the first and second operating modes are different.

10. The method of claim 1, further comprising the step of:

when the hybrid vehicle is within an operating zone, sending a notification recommending that the hybrid vehicle be switched to a particular operating mode.

11. The method of claim 1, further comprising the step of:

when the hybrid vehicle is within an operating zone, then automatically switching the hybrid vehicle to a particular operating mode.

12. The method of claim 1, wherein the control unit is part of the hybrid vehicle or a mobile device.

13. A method for operating a hybrid vehicle with different operating modes, comprising the steps of:

(a) retrieving geographic data for one or more areas of interest;

(b) retrieving a current location of the hybrid vehicle;

(c) using the geographic data and the current location of the hybrid vehicle to determine a distance from the hybrid vehicle to each of the one or more areas of interest, comparing each distance to a predetermined range and identifying those areas of interest within the predetermined range, and only performing steps (d) and (e) for those areas of interest within the predetermined range;

(d) using the geographic data to establish one or more operating zones, each operating zone is associated with at least one area of interest and defines an area where a particular operating mode is recommended for the hybrid vehicle; and

(e) using a control unit to determine when the current location of the hybrid vehicle is within an operating zone where a particular operating mode is recommended for the hybrid vehicle.

14. The method of claim 13, wherein the predetermined range is based on either a maximum operating range of the hybrid vehicle or a current operating range of the hybrid vehicle.

15. The method of claim 13, further comprising the step of:

identifying an area of interest within the predetermined range that is closest to the current location of the hybrid vehicle and presenting information pertaining to the closest area of interest, wherein the information includes at least one item selected from the group consisting of;

a distance from the hybrid vehicle to the closest area of interest or a heading from the hybrid vehicle to the closest area of interest.

16. A method for operating a hybrid vehicle with different operating modes, comprising the steps of:

(a) retrieving geographic data for one or more areas of interest;

(b) retrieving a current location of the hybrid vehicle;

(c) using the geographic data to establish one or more operating zones, each operating zone is associated with at least one area of interest and defines an area where a particular operating mode is recommended for the hybrid vehicle; and

(d) using a control unit to determine when the current location of the hybrid vehicle is within an operating zone where a particular operating mode is recommended for the hybrid vehicle and sending a notification recommending that the hybrid vehicle be switched to a particular operating mode, wherein the method further comprises determining if the hybrid vehicle started a key cycle within the operating zone, and delaying notification recommending that the hybrid vehicle be switched to the particular operating mode when the hybrid vehicle started the key cycle within the operating zone.

17. A method for operating a hybrid vehicle with a mountain mode, comprising the steps of:

(a) retrieving geographic data for one or more mountains;

(b) retrieving a current location of the hybrid vehicle;

(c) using the geographic data to establish one or more mountain zones, each mountain zone is a customized mountain zone at least partially based on mountain-related factors that are associated with at least one mountain and defines an area around the mountain where a mountain mode is recommended for the hybrid vehicle; and

(d) using a control unit to determine when the current location of the hybrid vehicle is within a mountain zone where the mountain mode is recommended for the hybrid vehicle.

18. The method of claim 17, wherein step (c) further comprises using a static radius to establish a mountain zone, the static radius creates an imaginary area around one or more mountains that generally does not change while the hybrid vehicle is operating, and step (d) further comprises determining when the current location of the hybrid vehicle is within the mountain zone by determining when the hybrid vehicle is within the imaginary area.

19. The method of claim 17, wherein step (c) further comprises using a dynamic radius to establish a mountain zone, the dynamic radius creates an imaginary area around one or more mountains that generally changes while the hybrid vehicle is operating, and step (d) further comprises determining when the current location of the hybrid vehicle is within the mountain zone by determining when the hybrid vehicle is within the imaginary area.

20. The method of claim 17, further comprising the step of:

when the hybrid vehicle is within a mountain zone, sending a notification recommending that the hybrid vehicle be switched to a mountain mode.

21. The method of claim 20, further comprising the step of:

determining if the hybrid vehicle started a key cycle within the mountain zone, and delaying notification recommending that the hybrid vehicle be switched to the mountain mode when the hybrid vehicle started the key cycle within the mountain zone.

22. The method of claim 17, further comprising the step of:

when the hybrid vehicle is within a mountain zone, then automatically switching the hybrid vehicle to a mountain mode.