System for a fuel cell power and management system

• US 7,893,651 B2
• Filed: 09/13/2006
• Issued: 02/22/2011
• Est. Priority Date: 01/22/2004
• Status: Expired due to Fees

• Current Assignee: Intelligent Energy Limited (Lb-shell Plc)
• Original Assignee: Jadoo Power Systems, Inc.
• Inventors: Dunn, Glenn M., Getchel, Paul, MacGregor, Duncan D., MacGregor, Sinclair D., Pearson, Kenneth E.
• Primary Examiner(s): Tso, Edward
• Assistant Examiner(s): WILLIAMS, ARUN C
• Application Number:
  US11/520,392
• Publication Number:
  US 20070020510A1
• Time in Patent Office: 1,623 Days
• Field of Search: 320/101, 320134-136, 320/150, 320/155, 429/12, 429/13, 429/24, 429/25
• US Class Current: 320/101
• CPC Class Codes: F17C 2205/0308 Protective caps
• CPC Class Codes: H01M 2250/30 Fuel cells in portable systems, e.g. mobile phone, laptop
• CPC Class Codes: H01M 8/04089 of gaseous reactants
• CPC Class Codes: H01M 8/04208 Cartridges, cryogenic media or cryogenic reservoirs
• CPC Class Codes: H01M 8/04373 of auxiliary devices, e.g. reformers, compressors, burners
• CPC Class Codes: H01M 8/04388 of anode reactants at the inlet or inside the fuel cell
• CPC Class Codes: H01M 8/04425 at auxiliary devices, e.g. reformers, compressors, burners
• CPC Class Codes: Y02B 90/10 Applications of fuel cells in buildings
• CPC Class Codes: Y02E 60/32 Hydrogen storage
• CPC Class Codes: Y02E 60/50 Fuel cells

Abstract

There are many inventions described and illustrated herein. In one aspect, the present invention is directed to a portable fuel cell power and management system (for example, hydrogen and/or methanol based systems), components and/or elements thereof, as well as techniques for controlling and/or operating such systems. The fuel cell power management system (and method of controlling and/or operating same) actively monitors, manages and/or controls one or more operating parameter(s) of the fuel cell system. For example, the system monitors, manages and/or controls the consumption and/or the rate of consumption of fuel by the system, and in response thereto, may provide and/or alert the user to amount of fuel remaining, consumed, the rate of consumption and/or the time (or estimation thereof) remaining until all of the fuel is spent. In this way, the user may schedule or plan accordingly.

Claims

1. A fuel cell system, comprising:

a power unit comprising;

a fuel cell operable to generate power from a fuel;

a power unit control system operable to determine, monitor, manage and/or control a parameter; and

a power unit interface comprising;

a power unit mechanical interface; and

a power unit communications interface; and

a fuel storage unit comprising;

a removable fuel vessel operable to store the fuel;

a fuel storage unit control system operable to determine, monitor, manage and/or control the parameter; and

a fuel storage unit interface comprising;

a fuel storage unit mechanical interface; and

a fuel storage unit communications interface,

wherein the power unit mechanical interface and the fuel storage unit mechanical interface are respectively operable to permit holding, retention and/or engagement between the power unit and the fuel storage unit, and a fluid interface therebetween permits fluid communication of the fuel between the fuel storage unit and the power unit, and

wherein the communications interface of the power unit and the communications interface of the fuel storage unit are respectively operable to provide communications between the control system of the power unit and the control system of the fuel storage unit;

a refill unit comprising;

a fluid input port to receive the fuel from a fuel source;

a refill unit control system operable to determine, monitor, manage and/or control the parameter; and

a refill unit interface comprising;

a refill unit mechanical interface; and

a refill unit communications interface,

wherein the refill unit mechanical interface and the fuel storage unit mechanical interface are respectively operable to permit holding, retention and/or engagement between the refill unit and the fuel storage unit, and a fluid interface therebetween permits fluid communication of the fuel between the refill unit and the fuel storage unit,

wherein the refill unit communications interface and the fuel storage unit communications interface are respectively operable to provide communications between the refill unit control system and the fuel storage unit control system; and

wherein a transmission and/or reception of the parameter and/or data relating to the parameter between the fuel storage unit control system and the control system of any one of the power unit and/or the refill unit defines a message protocol.

2. The system of claim 1, wherein the message protocol comprises one or more data packet transmissions.

3. The system of claim 1, wherein the fuel storage unit communications interface and any one of the communications interfaces of the power unit and/or the refill unit respectively comprise an electrical connection.

4. The system of claim 1, wherein the fuel storage unit communications interface and any one of the communications interfaces of the power unit and/or the refill unit respectively comprise a wireless connection.

5. The system of claim 1, wherein the fuel storage unit comprises a cartridge.

6. The system of claim 5, wherein the cartridge comprises a first modular unit, and the power unit comprises a second modular unit.

7. The system of claim 6, wherein the refill unit comprises a third modular unit.

8. The system of claim 1, wherein the control system of any one of the fuel storage unit, the power unit and/or the refill unit comprises a memory to store data representative of the parameter such that when the fuel storage unit is disengaged from the power unit, the memory retains data representative of the parameter.

9. The system of claim 1, wherein in relation to the fuel storage unit, the parameter relates to any one of:

the amount of fuel remaining and/or consumed, the rate of consumption of the fuel, the temperature of the fuel, and/or the pressure of the fuel.

10. The system of claim 1, wherein the control system of any one of the fuel storage unit, the power unit and/or the refill unit is operable to determine, monitor, manage and/or control any one of:

the amount of fuel remaining and/or consumed, and/or the rate of consumption of the fuel based on information relating to the amount of time the fuel storage unit is connected to and/or provides fuel to the power unit.

11. The system of claim 1, further comprising one or more sensors positioned on and/or near any one of the power unit, the refill unit and/or the fuel storage unit.

12. The system of claim 11, wherein a said control system calculates the parameter using data obtained from the one or more sensors.

13. The system of claim 1, wherein the parameter is calculated using mathematical relationships of the data and/or modeling of the data.

14. The system of claim 1, further comprising one or more audible indicators to audibly provide information relating to the parameter.

15. The system of claim 1, further comprising one or more visual displays to provide visual representations relating to the parameter.

16. The system of claim 1, wherein the control system of any one of the fuel storage unit, the power unit and/or the refill unit is operable to determine, monitor, manage and/or control issues relating to any one of:

thermal management, fuel leak detection, fuel purge, over-current protection and/or voltage regulation, of the fuel cell system.

17. The system of claim 1 further comprising a mounting fixture.

18. The system of claim 17, wherein the mounting fixture mounts any one of:

the control system and/or a memory associated with the control system of any one of the fuel storage unit, the power unit and/or the refill unit.

19. The system of claim 17, wherein the mounting fixture mounts any one of:

an audible indicator to audibly provide information relating to the parameter, the audible indicator being associated with any one of the fuel storage unit, the power unit and/or the refill unit; and

/or a visual display to provide a visual representation relating to the parameter, the visual display being associated with any one of the fuel storage unit, the power unit and/or the refill unit.

20. The system of claim 1, wherein the unique characteristic of the storage unit comprises any one of:

a serial number of the storage unit, a date of manufacture of the storage unit, a date of assembly of the storage unit, a type of fuel contained in the fuel storage unit, a fuel capacity of the storage unit, and/or a number of refill operations the storage unit has undergone.

21. The system of claim 1, wherein the control system of any one of the fuel storage unit, the power unit and/or the refill unit periodically calculates and a memory stores respectively data representative of the amount of fuel in the fuel storage unit.

22. The system of claim 21, wherein the calculation by the control system and the storage by the memory is in response to a command from an external device.

23. The system of claim 1, further comprising:

a contact switch, coupled to the control system of any one of the fuel storage unit, the power unit and/or the refill unit, to receive a user input.

24. The system of claim 23, further comprising:

a printed circuit substrate, disposed in or on a mounting fixture to which the control system and a memory associated with the control system is mounted, wherein the memory is attached to the printed circuit substrate and thereby disposed in or on the mounting fixture.

25. The system of claim 1, further comprising a battery electrically coupled to a visual display of the fuel storage unit, to provide electrical power to the visual display at least when the fuel storage unit is disengaged from the power unit.

26. The system of claim 1, wherein a mounting fixture having a collar-like structure is fixedly attached around an external surface of the fuel storage unit.

27. The system of claim 1, wherein the communications interface comprises an electrical communications interface.

28. The system of claim 1, wherein the control system of any one of the fuel storage unit, the power unit and/or the refill unit comprises a microprocessor and/or microcontroller.

29. A fuel cell system, comprising:

a power unit comprising;

a fuel cell operable to generate power from a fuel;

a power unit control system operable to determine, monitor, manage and/or control a parameter; and

a power unit interface comprising;

a power unit mechanical interface; and

a power unit communications interface; and

a fuel storage unit comprising;

a removable fuel vessel operable to store the fuel;

a fuel storage unit control system operable to determine, monitor, manage and/or control the parameter; and

a fuel storage unit interface comprising;

a fuel storage unit mechanical interface; and

a fuel storage unit communications interface,

wherein the power unit mechanical interface and the fuel storage unit mechanical interface are respectively operable to permit holding, retention and/or engagement between the power unit and the fuel storage unit, and a fluid interface therebetween permits fluid communication of the fuel between the fuel storage unit and the power unit, and

wherein the communications interface of the power unit and the communications interface of the fuel storage unit are respectively operable to provide wireless communications between the control system of the power unit and the control system of the fuel storage unit;

a refill unit comprising;

a fluid input port to receive the fuel from a fuel source;

a refill unit control system operable to determine, monitor, manage and/or control the parameter; and

a refill unit interface comprising;

a refill unit mechanical interface; and

a refill unit communications interface,

wherein the refill unit mechanical interface and the fuel storage unit mechanical interface are respectively operable to permit holding, retention and/or engagement between the refill unit and the fuel storage unit, and a fluid interface therebetween permits fluid communication of the fuel between the refill unit and the fuel storage unit,

wherein the refill unit communications interface and the fuel storage unit communications interface are respectively operable to provide wireless communications between the refill unit control system and the fuel storage unit control system.

30. The system of claim 29, wherein the fuel storage unit comprises a cartridge.

31. The system of claim 29, wherein the control system of any one of the fuel storage unit, the power unit and/or the refill unit comprises a memory to store data representative of the parameter such that when the fuel storage unit is disengaged from the power unit, the memory retains data representative of the parameter.

32. The system of claim 29, wherein in relation to the fuel storage unit, the parameter relates to any one of:

the amount of fuel remaining and/or consumed, the rate of consumption of the fuel, the temperature of the fuel, and/or the pressure of the fuel.

33. The system of claim 29, wherein the control system of any one of the fuel storage unit, the power unit and/or the refill unit is operable to determine, monitor, manage and/or control any one of:

the amount of fuel remaining and/or consumed, and/or the rate of consumption of the fuel based on information relating to the amount of time the fuel storage unit is connected to and/or provides fuel to the power unit.

34. The system of claim 29, further comprising one or more sensors positioned on and/or near any one of the power unit, the refill unit and/or the fuel storage unit.

35. The system of claim 34, wherein a said control system calculates the parameter using data obtained from the one or more sensors.

36. The system of claim 29, wherein the parameter is calculated using mathematical relationships of the data and/or modeling of the data.

37. The system of claim 29, further comprising one or more audible indicators to audibly provide information relating to the parameter.

38. The system of claim 29, further comprising one or more visual displays to provide visual representations relating to the parameter.

39. The system of claim 29, wherein the control system of any one of the fuel storage unit, the power unit and/or the refill unit is operable to determine, monitor, manage and/or control issues relating to any one of:

thermal management, fuel leak detection, fuel purge, over-current protection and/or voltage regulation, of the fuel cell system.

40. The system of claim 29 further comprising a mounting fixture.

41. The system of claim 40, wherein the mounting fixture mounts any one of:

the control system and/or a memory associated with the control system of any one of the fuel storage unit, the power unit and/or the refill unit.

42. The system of claim 40, wherein the mounting fixture mounts any one of:

an audible indicator to audibly provide information relating to the parameter, the audible indicator being associated with any one of the fuel storage unit, the power unit and/or the refill unit; and

/or a visual display to provide a visual representation relating to the parameter, the visual display being associated with any one of the fuel storage unit, the power unit and/or the refill unit.

43. The system of claim 29, wherein the unique characteristic of the storage unit comprises any one of:

a serial number of the storage unit, a date of manufacture of the storage unit, a date of assembly of the storage unit, a type of fuel contained in the fuel storage unit, a fuel capacity of the storage unit, and/or a number of refill operations the storage unit has undergone.

44. The system of claim 29, wherein the control system of any one of the fuel storage unit, the power unit and/or the refill unit periodically calculates and a memory stores respectively data representative of the amount of fuel in the fuel storage unit.

45. The system of claim 44, wherein the calculation by the control system and the storage by the memory is in response to a command from an external device.

46. The system of claim 29, further comprising:

a contact switch, coupled to the control system of any one of the fuel storage unit, the power unit and/or the refill unit, to receive a user input.

47. The system of claim 46, further comprising:

a printed circuit substrate, disposed in or on a mounting fixture to which the control system and a memory associated with the control system is mounted, wherein the memory is attached to the printed circuit substrate and thereby disposed in or on the mounting fixture.

48. The system of claim 29, wherein a mounting fixture having a collar-like structure is fixedly attached around an external surface of the fuel storage unit.

49. The system of claim 29, wherein the communications interface comprises an electrical communications interface.

50. The system of claim 29, wherein the control system of any one of the fuel storage unit, the power unit and/or the refill unit comprises a microprocessor and/or microcontroller.