SYSTEM AND METHOD FOR TRANSFERRING MESSAGE IN ETHERNET BASED VEHICLE NETWORK

• US 20150003456A1
• Filed: 11/06/2013
• Published: 01/01/2015
• Est. Priority Date: 07/01/2013
• Status: Active Grant

• Current Assignee: Hyundai Motor Company (Hyundai Motor Group), Kia Motors Corporation (Kia Corp.), SungKyunKwan University's Research & Business Foundation (SungKyunKwan University (SKKU))
• Original Assignee: Hyundai Motor Company (Hyundai Motor Group), Kia Motors Corporation (Kia Corp.), SungKyunKwan University's Research & Business Foundation (SungKyunKwan University (SKKU))
• Inventors: Seo, Suk Hyun, Bae, Hyun Cheol, Jeon, Jae Wook, Kim, Jin Ho, Lee, Chung Hi
• Granted Patent: US 9,432,207 B2
• Time in Patent Office: Days
• US Class Current: 370/392
• CPC Class Codes: H04L 12/28 characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks] wireless communication networks H04W ; arrangements for dividing the transmission path H04W40/00
• CPC Class Codes: H04L 12/2836 Protocol conversion between an external network and a home network controlling appliance services of a home automation network from a device located outside the home and the home network H04L12/2818; protocol conversion H04L69/08; adaptation of digital video signals for transport over a specific home network H04N7/24
• CPC Class Codes: H04L 12/4625 Single bridge functionality, e.g. connection of two networks over a single bridge
• CPC Class Codes: H04L 12/66 Arrangements for connecting between networks having differing types of switching systems, e.g. gateways
• CPC Class Codes: H04L 2012/40215 Controller Area Network CAN
• CPC Class Codes: H04L 2012/40234 Local Interconnect Network LIN
• CPC Class Codes: H04L 2012/40241 Flexray
• CPC Class Codes: H04L 2012/40273 the transportation system being a vehicle
• CPC Class Codes: H04L 49/351 for local area network [LAN], e.g. Ethernet switches
• CPC Class Codes: H04L 67/12 specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
• CPC Class Codes: H04L 69/22 Parsing or analysis of headers
• CPC Class Codes: H04L 69/324 in the data link layer [OSI layer 2], e.g. HDLC

Abstract

An Ethernet based vehicle network message transferring system is provided that includes a gateway switch that connects the Ethernet to vehicle networks having different protocols and an Ethernet switch that switches Ethernet messages between the gateway switch and vehicle devices to transfer the Ethernet messages. The Ethernet switch includes a processing module that transfers the Ethernet messages received via the gateway switch in the different vehicle networks, a vehicle network process module that switches the messages transferred from the processing module, and a lookup table in which information necessary for switching the vehicle network process module is stored. The vehicle network process module analyzes an Ethernet message transferred via the processing module in the gateway switch to identify destinations of individual messages in the Ethernet message and divides the Ethernet message including information regarding the individual message according to destinations to transmit the divided Ethernet messages to vehicle devices of destinations.

Claims

1. A vehicle network message transferring method, comprising:

receiving individual messages whose destinations are different from vehicle devices via vehicle networks, by a gateway switch;

transmitting the received individual messages to an switch while one message contains the received individual messages, by the gateway switch;

analyzing the received message and identifying destinations of the individual messages contained in the message, by the switch; and

dividing the message containing information of the individual messages based on destinations and transmitting the divided messages to the corresponding destinations, by the switch.

2. The vehicle network message transferring method of claim 1, further comprising:

transmitting the message by the vehicle devices connected to the switch, and receiving the message by the switch; and

integrating the messages received from the vehicle devices into one message and transmitting the integrated message to the gateway switch, by the switch.

3. The vehicle network message transferring method of claim 2, wherein the switch analyzes a frame of the received message to determine whether to divide or integrate the message, and calls one of a message dividing algorithm and a message integrating algorithm to divide or integrate the message based on the algorithm.

4. The vehicle network message transferring method of claim 3, further comprising in the message integrating algorithm:

searching a lookup table from the frame information of the received message to determine whether to integrate the message;

and in response to determining that the message is to be integrated, adding and integrating the message with one message to be transmitted to the gateway switch.

5. The vehicle network message transferring method of claim 3, further comprising in the message integrating algorithm:

repeating receiving another new message, determining to integrate a new message, and integrating the new message until lapse of a set time or a predetermined number of messages are integrated; and

transmitting the integrated message to the gateway switch.

6. The vehicle network message transferring method of claim 3, further comprising:

analyzing, by the switch, a frame of the message received from the gateway switch in the division process to classify the individual messages included in the message;

analyzing, by the switch, headers of the individual messages to identify destination addresses of the individual messages; and

dividing, by the switch, the message that includes information regarding the individual messages according to destinations.

7. The vehicle network message transferring method of claim 6, further comprising:

reading, by the switch, identification symbols (ID) and header lengths of the individual messages from the individual messages; and

searching, by the switch, a lookup table to identify destination addresses.

8. The vehicle network message transferring method of claim 1, wherein the different vehicle networks comprise at least one of CAN (Controller Area Network), LIN (Local Interconnect Network), and FlexRay.

9. An vehicle network message transferring system, comprising:

a switch configured to switch messages between a gateway switch and vehicle devices to transfer the messages,

wherein the switch includes;

a processing module configured to transfer the messages received via the gateway switch in the different vehicle networks;

a vehicle network process module configured to;

switch the messages transferred from the processing module;

analyze a message transferred via the processing module in the gateway switch to identify destinations of individual messages in the message; and

divide the message that includes information regarding the individual message according to destinations to transmit the divided messages to vehicle devices of destinations; and

a lookup table in which information necessary for switching the vehicle network process module is stored.

10. The vehicle network message transferring system of claim 9, wherein when the vehicle network process module receives messages from vehicle devices connected to the switch, the vehicle network process module is configured to integrate the messages into one message and transmit the integrated message to the gateway switch.

11. The vehicle network message transferring system of claim 10, wherein the vehicle network process module is configured to:

analyze a frame of the received message to determine whether to divide or integrate the message; and

call one of a message dividing algorithm and a message integrating algorithm to perform a division or integration process according to the algorithm.

12. The vehicle network message transferring system of claim 11, wherein in the message integrating algorithm, the lookup table is searched from frame information of the received message to identify that the message is to be integrated, and when the message is a message to be integrated, the message is added to one message to be transmitted to the gateway switch.

13. The vehicle network message transferring system of claim 12, wherein in the message integrating algorithm, processes of receiving another new message, determining to integrate a new message, and integrating the new message are repeated until lapse of a set time or a predetermined number of messages are integrated, and the integrated message is transmitted to the gateway switch.

14. The vehicle network message transferring system of claim 11, wherein the vehicle network process module is configured to:

analyze a frame of the message received from the gateway switch in the division process to classify the individual messages included in the message;

analyze headers of the individual messages to identify destination addresses of the individual messages; and

divide the message that include information regarding the individual messages according to destinations.

15. The vehicle network message transferring system of claim 14, wherein the vehicle network process module is configured to:

read identification symbols (ID) and header lengths of the individual messages from the individual messages; and

search the lookup table to identify destination addresses.

16. The vehicle network message transferring system of claim 9, wherein the different vehicle networks comprise at least one of CAN (Controller Area Network), LIN (Local Interconnect Network), and FlexRay.

17. A vehicle network message transferring method, comprising:

analyzing, by a switch, a message that contains individual messages received from a gateway switch via vehicle networks;

identifying, by the switch, destinations of the individual messages contained in the message;

dividing, by the switch, the message containing information of the individual messages based on destinations; and

transmitting, by the switch, the divided messages to the corresponding destinations.

18. The vehicle network message transferring method of claim 17, further comprising:

receiving, by the switch, the message that is transmitted by vehicle devices connected to the switch;

integrating, by the switch, the messages received from the vehicle devices into one message; and

transmitting, by the switch, the integrated message to the gateway switch.

19. The vehicle network message transferring method of claim 18, wherein the switch analyzes a frame of the received message to determine whether to divide or integrate the message, and calls one of a message dividing algorithm and a message integrating algorithm to divide or integrate the message based on the algorithm.