Vehicle charging, monitoring and control systems for electric and hybrid electric vehicles

• US 7,830,117 B2
• Filed: 01/10/2006
• Issued: 11/09/2010
• Est. Priority Date: 01/10/2005
• Status: Active Grant

• Current Assignee: Power Technology Holdings LLC
• Original Assignee: Odyne Systems, LLC
• Inventors: Sfakianos, Konstantinos, Ambrosio, Joseph Mario
• Primary Examiner(s): Vu; Bao Q
• Assistant Examiner(s): Zhang; Jue
• Application Number:
  US11/329,018
• Publication Number:
  US 20060152189A1
• Time in Patent Office: 1,764 Days
• Field of Search: 320/107, 320/109, 320/110, 320/116, 320/119, 320/120
• US Class Current: 320/109
• CPC Class Codes: B60L 2240/545 Temperature
• CPC Class Codes: B60L 3/0046 relating to electric energy storage systems, e.g. batteries or capacitors
• CPC Class Codes: B60L 3/12 Recording operating variables ; Monitoring of operating variables
• CPC Class Codes: B60L 50/62 charged by low-power generators primarily intended to support the batteries, e.g. range extenders
• CPC Class Codes: B60L 53/14 Conductive energy transfer
• CPC Class Codes: B60L 58/12 responding to state of charge [SoC]
• CPC Class Codes: B60L 58/18 of two or more battery modules
• CPC Class Codes: B60L 58/20 having different nominal voltages
• CPC Class Codes: B60L 58/22 Balancing the charge of battery modules
• CPC Class Codes: B60L 58/24 for controlling the temperature of batteries
• CPC Class Codes: B60W 10/24 including control of energy storage means
• CPC Class Codes: B60W 10/26 for electrical energy, e.g. batteries or capacitors
• 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 20/10 Controlling the power contribution of each of the prime movers to meet required power demand
• CPC Class Codes: B60W 2710/242 for electrical energy
• CPC Class Codes: H02J 7/00 Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
• CPC Class Codes: H02J 7/0019 using switched or multiplexed charge circuits
• CPC Class Codes: Y02T 10/62 Hybrid vehicles
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y02T 10/7072 Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
• CPC Class Codes: Y02T 90/14 : Plug-in electric vehicles

Abstract

A distributed charging system for electric and hybrid electric vehicles includes multiple battery packs of different voltages including high voltage battery packs and one or more low voltage battery packs, each having separate and independent charging systems and multiple sources of electric power. Electric power is distributed from the sources of electric power separately to each of the independent charging systems. A drive system for the electric or hybrid electric vehicle includes a stored energy system made up of these multiple battery packs and a master events controller controlling at least one of a) a traction drive system including a motor and controller for receiving driving electric energy from a stored energy system for propulsion of the vehicle, b), an auxiliary power system for recharging the battery packs and c) a vehicle monitoring and control network for controlling the operation of, and monitoring all bus systems in the vehicle.

Claims

1. A distributed charging system for electric and hybrid electric vehicles, the distributed charging system comprising:

multiple battery packs;

said battery packs having separate and independent charging systems and separate and independent battery management systems, the battery management systems controlling their respective independent charging systems;

multiple sources of electric power for said independent charging systems; and

means for distributing said electric power from said sources of electric power separately to each of said independent charging systems, wherein each battery management system is in communication with a vehicle monitoring control system, and wherein each battery pack has a separate and independent thermal management system controlled by its respective battery management system.

2. The distributed charging system of claim 1 wherein said battery packs are of different voltages.

3. The distributed charging system of claim 2 wherein said battery packs are high voltage battery packs.

4. The distributed charging system as in claim 1 further comprising at least one low voltage power pack.

5. The distributed charging system of claim 1 wherein the battery packs are high voltage battery packs connected in series during motor vehicle operation.

6. The distributed charging system as in claim 1 wherein the battery packs are connected in parallel during motor vehicle operation.

7. The distributed charging system of claim 1 wherein at least one of said sources of electric power is an onboard auxiliary power unit comprising an internal combustion engine.

8. The distributed charging system of claim 1 wherein at least one of said sources of electric power is an off-board power supply.

9. The distributed charging system of claim 1 wherein at least one of said sources of electric power is an AC power supply.

10. The distributed charging system of claim 1 wherein at least one of said sources of electric power is a DC power supply.

11. The distributed charging system of claim 1 wherein power is supplied to each of said battery packs from a mains supply.

12. The distributed charging system of claim 1 wherein one of said sources is solar energy.

13. The distributed charging system of claim 1 wherein all said sources of electric power are integrated into a single power supply distribution block.

14. The distributed charging system of claim 1 wherein each said battery pack of a battery compartment has associated therewith at least one sub-system requiring a different voltage than that of a main battery voltage for said battery pack, thereby requiring at least one of a lower and/or higher voltage battery compartment for said battery compartment.

15. A distributed charging system for a plurality of battery packs for vehicles, the distributed charging system comprising:

a separate and independent charging system for each battery pack of the battery packs;

a separate and independent battery management system for each battery pack of the battery packs, wherein the battery management system controls a respective independent charging system; and

an independent thermal management system for each battery pack controlled by its respective battery management system, wherein each battery management system is in communication with a vehicle monitoring control system.

16. The distributed charging system as in claim 15 further comprising at least one low voltage power pack.

17. The distributed charging system of claim 15 wherein said battery packs are high voltage battery packs.

18. The distributed charging system of claim 15 wherein the high voltage battery packs are connected in series during motor vehicle operation.

19. The distributed charging system as in claim 15 wherein the battery packs are connected in parallel during motor vehicle operation.

20. The distributed charging system of claim 15 wherein at least one of said sources of electric power is an onboard auxiliary power unit comprising an internal combustion engine.

21. The distributed charging system of claim 15 wherein at least one of said sources of electric power is an off-board power supply.

22. The distributed charging system of claim 15 in which at least one of said sources of electric power is an AC power supply.

26. The distributed charging system of claim 15 wherein the thermal management system, and the battery management system are coupled to a local star network.

27. The distributed charging system of claim 15, wherein the battery packs are coupled to multiple power sources in series or in parallel.

23. A distributed charging system for vehicles, the distributed charging system comprising:

a plurality of battery packs, the battery packs having separate and independent charging systems, separate and independent battery management systems, and separate and independent thermal management system, wherein each of the battery management systems controls a respective charging system of the independent charging systems and a respective thermal management system of the thermal management systems and wherein each battery management system is in communication with a vehicle monitoring control system.

24. The distributed charging system of claim 23 wherein the battery packs are configured as a stored energy system.

25. The distributed charging system of claim 24 further comprising an input of receiving power from an APU and mains.