System and method for electrical energy switching and control in a vehicle

• US 20070145825A1
• Filed: 02/20/2007
• Published: 06/28/2007
• Est. Priority Date: 06/14/2004
• Status: Active Grant

• Current Assignee: C.E. Niehoff & Co.
• Original Assignee: C.E. Niehoff & Co.
• Inventors: Jabaji, Shadi, Jebaji, Issam
• Granted Patent: US 7,397,147 B2
• Time in Patent Office: Days
• US Class Current: 307/10.100
• CPC Class Codes: B60L 1/00 Supplying electric power to auxiliary equipment of vehicles circuit arrangements for charging batteries H02J7/00
• CPC Class Codes: B60L 2250/16 by display
• CPC Class Codes: B60L 8/003 Converting light into electric energy, e.g. by using photo-voltaic systems
• CPC Class Codes: H02J 7/1423 with multiple batteries
• 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

Abstract

This invention discloses a device in a vehicle electrical system which determines the vehicle'"'"'s operating conditions and facilitates the transfer of electrical energy between systems of electrical energy sources and their associated electrical loads based on the vehicle operating conditions. The device further determines the operating conditions of the systems of electrical energy sources and their associated electrical loads and facilitates the transfer of electrical energy between them in accordance with said operating conditions.

Claims

1. A system for controlling electrical energy sources in a vehicle, comprising:

(a) two or more electrical energy sources;

(b) a control device connected to and in communication with said electrical energy sources;

said control device determining an operating condition of a first electrical energy source and selectively connecting or disconnecting a second electrical energy source corresponding to said operating condition.

2. The system of claim 1, wherein (a) comprises a generator.

3. The system of claim 1, wherein (b) comprises means for sensing an energy level of the first electrical energy source to determine said operating condition.

4. The system of claim 3, wherein the control device detects a voltage level of said first electrical energy source via said sensing means.

5. The system of claim 4, wherein the control device connects the second electrical energy source with said first electrical energy source when said voltage level is above a threshold value.

6. The system of claim 4, wherein the control device disconnects the second electrical energy source with said first electrical energy source when said energy level falls below a threshold value.

7. The system of claim 1, wherein the control device selectively connecting or disconnecting two or more electrical energy sources.

8. A system for controlling electrical energy sources in a vehicle, comprising:

(a) two or more electrical energy sources; and

(b) means for controlling said electrical energy sources;

said means for controlling determining an operating condition of a first electrical energy source and selectively connecting or disconnecting a second electrical energy source corresponding to said operating condition.

9. A control device for controlling two or more electrical energy sources in a vehicle, comprising:

means for switching an electrical energy source; and

a processor including a programming code operable on the processor;

said processor determining an operating condition of a first electrical energy source and selectively connecting or disconnecting a second electrical energy source with said first electrical energy source via said switching means corresponding to said operating condition.

10. The control device of claim 9, wherein said processor comprises an input sense line coupled with said first electrical energy source to determine said operating condition.

11. The control device of claim 10, wherein said processor detects an energy level of said first electrical energy source via said input sense line.

12. The control device of claim 11, wherein said processor connects the second electrical energy source with said first electrical energy source when said energy level is above a threshold value.

13. The control device of claim 11, wherein said processor disconnects the second electrical energy source with said first electrical energy source when said energy level falls below a threshold value.

14. The control device of claim 9, wherein said processor selectively connecting or disconnecting two or more electrical energy sources.

15. A control device for controlling two or more electrical energy sources in a vehicle, comprising:

means for switching an electrical energy source; and

processing means for determining an operating condition of a first electrical energy source;

said processing means selectively connecting or disconnecting a second electrical energy source with said first electrical energy source via said switching means corresponding to said operating condition.

16. A method for controlling two or more electrical energy sources in a vehicle, comprising:

(a) determining an operating condition of a first electrical energy source; and

(b) selectively connecting or disconnecting a second electrical energy source with said first electrical energy source corresponding to said operating condition.

17. The method of claim 16, wherein (a) comprises sensing an energy level of said first electrical energy source to determine said operating condition.

18. The method of claim 17, wherein (b) comprises connecting the second electrical energy source with said first electrical energy source when said energy level is above a threshold value.

19. The method of claim 17, wherein (b) comprises disconnecting the second electrical energy source with said first electrical energy source when said energy level falls below a threshold value.

20. The method of claim 16, wherein (b) comprises selectively connecting or disconnecting two or more electrical energy sources.