MOTOR VEHICLE CONTROL SYSTEM WITH SIMPLIFIED INFORMATION EXCHANGE

• US 20130159586A1
• Filed: 12/12/2012
• Published: 06/20/2013
• Est. Priority Date: 12/15/2011
• Status: Active Grant

• Current Assignee: Lear Corporation GmbH (Lear Corporation)
• Original Assignee: Lear Corporation GmbH (Lear Corporation)
• Inventors: Kessler, Matthias
• Granted Patent: US 9,026,711 B2
• Time in Patent Office: Days
• US Class Current: 710/305
• CPC Class Codes: G06F 13/38 Information transfer, e.g. on bus G06F13/14 takes precedence
• CPC Class Codes: H04L 12/66 Arrangements for connecting between networks having differing types of switching systems, e.g. gateways

Abstract

A control system includes a gateway controller and a remote controller. The gateway controller is configured to embed an HTTP request in a CAN bus-compatible message and transmit the CAN bus-compatible message onto a CAN bus. The remote controller is configured to receive the CAN bus-compatible message from the CAN bus, extract the HTTP request from the CAN bus-compatible message, and create an HTTP response to the HTTP request.

Claims

1. A control system for a vehicle, the control system comprising:

a gateway controller configured to embed an HTTP request in a CAN bus-compatible message and transmit the CAN bus-compatible message onto a CAN bus; and

a remote controller configured to receive the CAN bus-compatible message from the CAN bus, extract the HTTP request from the CAN bus-compatible message, and create an HTTP response to the HTTP request.

2. The control system of claim 1 wherein:

the remote controller is further configured to forward the HTTP request to a first web server and the first web server is configured to create the HTTP response to the HTTP request for the remote controller.

3. The control system of claim 2 wherein:

the first web server is further configured to make available a first web page that produces the HTTP response in response to the HTTP request.

4. The control system of claim 1 wherein:

the remote controller is further configured to embed the HTTP response in a second CAN bus-compatible message and transmit the second CAN bus-compatible message onto the CAN bus; and

the gateway controller is further configured to receive the second CAN bus-compatible message from the CAN bus and extract the HTTP response from the second CAN bus-compatible message.

5. The control system of claim 4 wherein:

the gateway controller is further configured to receive the HTTP request by a third message compatible with a standard from the IEEE 802 family and to send the HTTP response by a fourth message compatible with a standard from the IEEE 802 family.

6. The control system of claim 5 wherein:

the third and fourth messages are compatible with the Ethernet standard.

7. The control system of claim 1 wherein:

the gateway controller includes a second web server which makes available a second web page that is set up to recognize that the HTTP request is intended for the remote controller and to create a request message to the remote controller, in which the request message includes the data of the HTTP request.

8. The control system of claim 7 wherein:

the gateway controller includes first and second interfaces, the first interface configured to produce the CAN bus-compatible message on the basis of the request message and the second interface configured to send the CAN bus-compatible message to the remote controller through the CAN bus.

9. The control system of claim 8 wherein:

the remote controller includes third and fourth interfaces, the third interface configured to set up to receive the CAN bus-compatible message through the CAN bus and the fourth interface configured to recreate the HTTP request using the CAN bus-compatible message.

10. The control system of claim 9 wherein:

the remote controller includes the first web server and the first web server is configured to create an HTTP response to the HTTP request;

the remote controller is further configured to embed the HTTP response in a second CAN bus-compatible message and transmit the second CAN bus-compatible message onto the CAN bus; and

the gateway controller is further configured to receive the second CAN bus-compatible message from the CAN bus and extract the HTTP response from the second CAN bus-compatible message.

11. The control system of claim 10 wherein:

the fourth interface is further configured to produce the second CAN bus-compatible message on the basis of the HTTP response,

the third interface is further configured to send the second CAN bus-compatible message to the gateway controller through the CAN bus,

the second interface is further configured to receive the second CAN bus-compatible message through the CAN bus, and

the first interface is further configured to recreate the HTTP response using the second CAN bus-compatible message.

12. The control system of claim 1 wherein:

the CAN bus-compatible message is a CAN remote frame, and the HTTP request is embedded in the data field of the CAN remote frame.

13. The control system of claim 4 wherein:

the second CAN bus-compatible message is a CAN data frame, and the HTTP response is embedded in the data field of the CAN data frame.

14. A method for a vehicle control system having a gateway controller and a remote controller connected by a CAN bus, the method comprising:

receiving by the gateway controller an HTTP request by a message compatible with the Ethernet standard;

creating by the gateway controller a CAN bus-compatible message in which the HTTP request is embedded; and

transmitting by the gateway controller the CAN bus-compatible message through the CAN bus to the remote controller.

15. The method of claim 14 further comprising:

receiving by the remote controller the CAN bus-compatible message from the CAN bus; and

extracting by the remote controller the HTTP request from the received CAN bus-compatible message.

16. The method of claim 15 further comprising:

creating by the remote controller an HTTP response to the HTTP request,

creating by the remote controller a second CAN bus-compatible message in which the HTTP request is embedded; and

transmitting by the remote controller the second CAN bus-compatible message through the CAN bus to the gateway controller.

17. The method of claim 16 further comprising:

receiving by the gateway controller the second CAN bus-compatible message from the CAN bus; and

extracting by the gateway controller the HTTP request from the received second CAN bus-compatible message.

18. A method for a vehicle control system having a gateway controller and a remote controller connected by a CAN bus, the method comprising:

receiving by the remote controller a CAN bus-compatible message in which an HTTP request is embedded from the CAN bus;

extracting by the remote controller the HTTP request from the received CAN bus-compatible message; and

creating by the remote controller an HTTP response to the HTTP request.

19. The method of claim 18 further comprising:

creating by the remote controller a second CAN bus-compatible message in which the HTTP request is embedded; and

transmitting by the remote controller the second CAN bus-compatible message through the CAN bus to the gateway controller.

20. The method of claim 19 further comprising:

receiving by the gateway controller the second CAN bus-compatible message from the CAN bus; and

extracting by the gateway controller the HTTP request from the received second CAN bus-compatible message.