Preconditioning a fuel cell using route data

Patent metadata

Field	Value
Publication number	US-11724706-B2
Application number	US-202117212745-A
Country	US
Kind code	B2
Filing date	Mar 25, 2021
Priority date	Mar 25, 2021
Publication date	Aug 15, 2023
Grant date	Aug 15, 2023

Abstract

Methods and systems may provide for technology to predict a future increase in power demand on a fuel cell based on route data associated with a vehicle powered by the fuel cell and reduce an operating temperature of the fuel cell prior to the future increase in power demand. The technology may also provide supplemental power from a battery to the vehicle while the operating temperature of the fuel cell is being reduced.

First claim

I claim:

1. A power subsystem comprising:
a fuel cell;
a battery; and
a controller coupled to the fuel cell and the battery, the controller including stored instructions, which when executed by the controller, cause the controller to:
predict a future increase in power demand on the fuel cell based on route data associated with a vehicle powered by the fuel cell,
reduce an operating temperature of the fuel cell prior to the future increase in power demand, and
provide supplemental power from the battery to the vehicle while the operating temperature of the fuel cell is being reduced.

2. The power subsystem of claim 1 , wherein the reduced operating temperature and the supplemental power are to cause the fuel cell to remain within a target range of operating temperatures while the fuel cell is experiencing the future increase in power demand.

3. The power subsystem of claim 1 , wherein to reduce the operating temperature of the fuel cell, the instructions, when executed, cause the controller to provide additional cooling to the fuel cell.

4. The power subsystem of claim 1 , wherein to reduce the operating temperature of the fuel cell, the instructions, when executed, cause the controller to reduce an inlet temperature of the fuel cell.

5. The power subsystem of claim 1 , wherein providing the supplemental power to the vehicle causes a state of charge of the battery to decrease.

6. The power subsystem of claim 1 , wherein the reduced operating temperature and the supplemental power are to prevent the fuel cell from reaching one or more safety limits.

7. The power subsystem of claim 1 , wherein the route data is to indicate an upcoming incline.

8. At least one computer readable storage medium comprising a set of instructions, which when executed by a controller, cause the controller to:
predict a future increase in power demand on a fuel cell based on route data associated with a vehicle powered by the fuel cell;
reduce an operating temperature of the fuel cell prior to the future increase in power demand; and
provide supplemental power from a battery to the vehicle while the operating temperature of the fuel cell is being reduced.

9. The at least one computer readable storage medium of claim 8 , wherein the reduced operating temperature and the supplemental power are to cause the fuel cell to remain within a target range of operating temperatures while the fuel cell is experiencing the future increase in power demand.

10. The at least one computer readable storage medium of claim 8 , wherein to reduce the operating temperature of the fuel cell, the instructions, when executed, cause the controller to provide additional cooling to the fuel cell.

11. The at least one computer readable storage medium of claim 8 , wherein to reduce the operating temperature of the fuel cell, the instructions, when executed, cause the controller to reduce an inlet temperature of the fuel cell.

12. The at least one computer readable storage medium of claim 8 , wherein providing the supplemental power to the vehicle causes a state of charge of the battery to decrease.

13. The at least one computer readable storage medium of claim 8 , wherein the reduced operating temperature and the supplemental power are to prevent the fuel cell from reaching one or more safety limits.

14. The at least one computer readable storage medium of claim 8 , wherein the route data is to indicate an upcoming incline.

15. A method comprising:
predicting a future increase in power demand on a fuel cell based on route data associated with a vehicle powered by the fuel cell;
reducing an operating temperature of the fuel cell prior to the future increase in power demand; and
providing supplemental power from a battery to the vehicle while the operating temperature of the fuel cell is being reduced.

16. The method of claim 15 , wherein the reduced operating temperature and the supplemental power cause the fuel cell to remain within a target range of operating temperatures while the fuel cell is experiencing the future increase in power demand.

17. The method of claim 15 , wherein reducing the operating temperature of the fuel cell includes providing additional cooling to the fuel cell.

18. The method of claim 15 , wherein reducing the operating temperature of the fuel cell includes reducing an inlet temperature of the fuel cell.

19. The method of claim 15 , wherein providing the supplemental power to the vehicle causes a state of charge of the battery to decrease.

20. The method of claim 15 , wherein the reduced operating temperature and the supplemental power prevent the fuel cell from reaching one or more safety limits.

Assignees

• Toyota Eng & Mfg North America

Inventors

• Farnsworth Jared

Classifications

• H01M8/04768

  of the coolant · CPC title

• H01M16/006 Primary

  of fuel cells with rechargeable batteries · CPC title

• H01M8/04723

  of the coolant · CPC title

• H01M2220/20

  Batteries in motive systems, e.g. vehicle, ship, plane · CPC title

• H01M8/04701

  Temperature · CPC title