Energy management system for vehicle

• US 20050029867A1
• Filed: 09/10/2002
• Published: 02/10/2005
• Est. Priority Date: 09/10/2001
• Status: Abandoned Application

• Current Assignee: Johnson Controls Technology Company (Johnson Controls International plc)
• Original Assignee: Johnson Controls Technology Company (Johnson Controls International plc)
• Inventors: Wood, Steven J.
• Application Number:
  US10/489,240
• Publication Number:
  US 20050029867A1
• Time in Patent Office: Days
• US Class Current: 307/10.100
• CPC Class Codes: B60T 2270/404 Brake-by-wire or X-by-wire failsafe
• CPC Class Codes: H02J 1/08 Three-wire systems; Systems having more than three wires
• CPC Class Codes: H02J 1/14 Balancing the load in a network
• CPC Class Codes: H02J 2310/46 for ICE-powered road vehicles
• CPC Class Codes: H02J 7/1423 with multiple batteries
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries

Abstract

A module for managing power in an electrical system of a vehicle is disclosed. The module includes a first interface configured for coupling to a first power source. The first power source is configured to power a plurality of loads of the electrical system. The module also includes a second interface configured for coupling to a second power source. The second power source is configured for charging the first power source. The module also includes a device configured for disconnecting the first power source from the plurality of loads. The device is also configured for disconnecting the second power source from the first power source.

Claims

1. A module for managing power in an electrical system of a vehicle comprising:

a first interface configured for coupling to a first power source, the first power source configured to power a plurality of loads of the electrical system;

a second interface configured for coupling to a second power source, the second power source configured for charging the first power source;

a device between the first power source and the plurality of loads;

wherein the device is configured for disconnecting the first power source from the plurality of loads and the device is configured for disconnecting the second power source from the first power source.

2. The module of claim 1 wherein the first power source comprises a first battery for a first plurality of the loads.

3. The module of claim 2 wherein the first power source further comprises a second battery for a second plurality of the loads.

4. The module of claim 3 wherein the first plurality of the loads comprises a plurality of low voltage loads and the second plurality of the loads comprises a plurality of high voltage loads.

5. The module of claim 4 wherein the first battery comprises a low voltage battery and second battery comprises a high voltage battery.

6. The module of claim 5 wherein the first battery comprises at least one of a 12 volt battery and a 14 volt battery.

7. The module of claim 6 wherein the second battery comprises at least one of 36 volt battery and a 42 volt battery.

8. The module of claim 5 wherein the second power source comprises a first auxiliary power source and a second auxiliary power source.

9. The module of claim 8 wherein the first auxiliary power source comprises at least one of a 12 volt battery and a 14 volt battery and the second auxiliary power source comprises at least one of a 36 volt battery and a 42 volt battery.

10. The module of claim 5 further comprising a converter configured for increasing a current provided by the low voltage battery to the high voltage battery.

11. The module of claim 10 wherein the converter comprises a DC-to-DC converter.

12. The module of claim 5 wherein the device comprises a switch.

13. The module of claim 12 wherein the device comprises a first set of switches configured to disconnect the first battery from the first plurality of loads and configured to disconnect the second battery from the second plurality of loads.

14. The module of claim 12 wherein the device is configured for disconnecting the second power source from the plurality of loads.

15. The module of claim 14 wherein the device further comprises a second set of switches configured to disconnect the first auxiliary power source from the first battery and from the first plurality of loads and also configured to disconnect the second auxiliary power source from the second battery and from the second plurality of loads.

16. The module of claim 10 further comprising a plurality of sensors configured to monitor a signal representative of a condition of the at least one of the first power source and the second power source.

17. The module of claim 16 further comprising a battery management system configured to selectively open and close the device in response to a signal provided by the sensors.

18. The module of claim 17 wherein the battery management system is configured to disconnect at least one of the first auxiliary power source and the second auxiliary power source from the plurality of loads if a voltage provided by at least one of the first auxiliary power source and the second auxiliary power source is less than a predetermined value.

19. A module for managing power in an electrical system of a vehicle comprising:

first means for coupling to a first power source, the first power source configured to power a plurality of loads of the electrical system;

second means for coupling to a second power source, the second power source configured for charging the first power source and configured for powering the plurality of loads;

a device comprising;

first means for disconnecting the first power source from the plurality of loads;

second means for disconnecting the second power source from the plurality of loads and for disconnecting the second power source from the first power source.

20. The module of claim 19 wherein the first power source comprises a low voltage battery for low voltage loads of the plurality of loads and a high voltage battery for high voltage loads of the plurality of loads.

21. The module of claim 20 wherein the second power source comprises a low voltage auxiliary power source for the low voltage loads and for charging the high voltage battery and further comprises a high voltage auxiliary power source for the high voltage loads.

22. The module of claim 21 wherein the first means for disconnecting comprises a first set of switches configured to disconnect the low voltage battery from the low voltage loads and also configured to disconnect the high voltage battery from the high voltage loads.

23. The module of claim 22 wherein the second means for disconnecting comprises a second set of switches configured to disconnect the low voltage auxiliary power source from the low voltage battery and the low voltage loads and also configured to disconnect the high voltage auxiliary power source from the high voltage battery and the high voltage loads.

24. A module for managing power in an electrical system of a vehicle comprising:

a first interface configured for coupling a first low voltage battery to a first high voltage battery;

a second interface configured for coupling a second high voltage battery to the first high voltage battery and to a plurality of high voltage loads;

a third interface configured for coupling a second low voltage battery to a plurality of low voltage loads;

a fourth interface configured for coupling the first high voltage battery to the plurality of high voltage loads;

a DC-to-DC converter configured to accept a low current from the first low voltage battery and to provide a high current to charge the first high voltage battery;

a switch for disconnecting the low voltage loads from each of the first and second low voltage batteries and configured for disconnecting the high voltage loads from each of the first and second high voltage batteries.

25. The module of claim 24 wherein the first interface is a mounting post configured for jump assistance of the vehicle.

26. The module of claim 25 wherein the second interface is a mounting post configured for jump-starting of the vehicle.

27. The module of claim 26 wherein the third interface is configured to power at least one of 12 volt loads and 14 volt loads of the low voltage loads.

28. The module of claim 27 wherein the fourth interface is configured to power at least one of 36 volt loads and 42 volt loads of the high voltage loads.

29. The module of claim 28 further comprising a container having a base and a cover.

30. The module of claim 28 wherein the module is configured for coupling to a vehicle communications network

31. The module of claim 29 wherein the switch is coupled to an exterior of the container and is configured for manual activation.

32. The module of claim 31 wherein the switch is a hinged switch.

33. The module of claim 31 wherein the switch a toggle switch.