Power and communication architecture for a vehicle

• US 20040227402A1
• Filed: 05/16/2003
• Published: 11/18/2004
• Est. Priority Date: 05/16/2003
• Status: Active Grant

• Current Assignee: Temic Automotive of North America, Incorporated (Continental AG)
• Original Assignee: Temic Automotive of North America, Incorporated (Continental AG)
• Inventors: Remboski, Donald, Jordan, Patrick, Levenson, Samuel M., Qualich, John, Fehr, Walton L.
• Granted Patent: US 7,999,408 B2
• Time in Patent Office: Days
• US Class Current: 307/10.1
• CPC Class Codes: B60R 16/0315 using multiplexing techniques multiplexing for transmission of signals G08C15/00; multiplexing for electrical communication in general H04J

Abstract

A power, ground and communication architecture (100) utilizes hubs (105, 110, 115). Each hub (105, 110, 115) contains computing, communication and power management elements (135, 140). Hubs (105, 110, 115) may be connected to multiple other hubs (105, 110, 115) to distribute communication and power in a freeform web-type arrangement, specific tree, bus or star arrangements are not required. Standardized wiring harness segments (120) are used to join the hubs (105, 110, 115) and control elements. Each of the strands in the web may be an independent point-to-point bus and isolated power line.

Claims

1. A power and communication architecture for a vehicle comprising:

a plurality of hubs disposed at various locations within the vehicle, each of the hubs having a power manager and a controller, each of the hubs having at least one port for coupling of the hub to another hub or to a device;

a plurality of wire harness segments interconnecting the plurality of hubs, each of the wire harness segments having a power conductor, a ground conductor and at least one signal conductor, the power conductor, the ground conductor and the at least one signal conductor being secured at each end thereof to a connector, wherein the at least one port is sized to receive the connector;

a first power source coupled to a hub of the plurality of hubs by a wire harness segment of the plurality of wire harness segments; and

at least one of the plurality of wire harness segments is redundant.

2. The power and communication architecture of claim 1, wherein the wire harness segments comprise standardized wire harness segments.

3. The power and communication architecture of claim 1, further comprising a second power source coupled to one of the hubs of the plurality of hubs, the second power source having a second voltage different than a first voltage of the first power source.

4. The power and communication architecture of claim 1, wherein the power manager is configured to manage a voltage input and a voltage output of the hub in a range of voltages from about 12 volts to about 42 volts.

5. The power and communication architecture of claim 1, wherein the power manager is configured to control current flow into the hub and from the hub.

6. The power and communication architecture of claim 1, wherein the power manager is operable to fault manage the hub.

7. The power and communication architecture of claim 1, wherein the power manager is operable to decouple the hub from the power and communication architecture upon detection of a power fault.

8. The power and communication architecture of claim 1, wherein the power manager is operable to decouple the hub from the power and communication architecture at the direction of the communication controller based on a message received from a central power management function.

9. The power and communication architecture of claim 1, wherein the power manager comprises a circuit.

10. The power and communication architecture of claim 1, wherein the power manager is disposed within the connector of one of the wire harness segments.

11. The power and communication architecture of claim 1, wherein the power and communication architecture is coupled within a vehicle to a legacy architecture.

12. A standardized vehicle wire harness segment comprising:

a power conductor, the power conductor being sized to effectively conduct direct current electricity in the range of voltages from about 12 volts to about 42;

a ground conductor;

a signal conductor;

each of the power conductor, the ground conductor and the signal conductor having a first end and a second end, the first ends being secured to a first connector and the second ends being secured to a second connector.

13. The standardized vehicle wire harness segment of claim 12 wherein each of the power conductor, the ground conductor and the signal conductor has a length selected from a group of discrete conductor lengths.

14. The standardized vehicle wire harness segment of claim 12 wherein the first connector and the second connector comprise having at least one structural formation corresponding to a specified voltage carrying capacity of the standardized vehicle wire harness segment.

15. The standardized vehicle wire harness segment of claim 12 color coded to corresponding to a specified voltage carrying capacity of the standardized vehicle wire harness segment.

16. The standardized vehicle wire harness segment of claim 12, comprising a power manager disposed within one of the first connector and the second connector.

17. The standardized vehicle wire harness segment of claim 16, wherein the power manager is configured to manage a voltage input and a voltage output of the hub in a range of voltages from about 12 volts to about 42 volts.

18. The standardized vehicle wire harness segment of claim 16, wherein the power manager is configured to control current flow into the hub and from the hub.

19. The standardized vehicle wire harness segment of claim 16, wherein the power manager is operable to decouple the hub from the power and communication architecture upon detection of a power fault.

20. The standardized vehicle wire harness segment of claim 16, wherein the power manager is operable to decouple the hub from the power and communication architecture at the direction of the communication controller.

21. The standardized vehicle wire harness segment of claim 16, wherein the power manager comprises a circuit comprising a pair of field-effect transistors and a pair of diodes.

22. A method of configuring a power and communication architecture within a vehicle, the method comprising the steps of:

disposing with the vehicle a plurality of hubs;

interconnecting the plurality of hubs in a web-type architecture using a plurality of standardized wire harness segments, the standardized wire harness segments including a power conductor, a ground conductor and a signal conductor; and

interconnecting at least one vehicle device to the web-type architecture using a standardized wire harness segment.

23. The method of claim 22, comprising the step of interconnecting a first power source to the web-type architecture using a standardized wire harness segment.

24. The method of claim 23, comprising the step of interconnecting a second power source, different from the first power source, to the web-type architecture using a standardized wire harness segment.

25. The method of claim 22, comprising providing a power manager in one of the hubs and the standardized wire harness segments.

26. The method of claim 22, comprising interconnecting the web-type architecture with a legacy architecture.