APPARATUS AND METHOD FOR INTER-VEHICLE COMMUNICATION

• US 20150018027A1
• Filed: 10/17/2013
• Published: 01/15/2015
• Est. Priority Date: 07/10/2013
• Status: Active Grant

• Current Assignee: Hyundai Motor Company (Hyundai Motor Group), Kia Motors Corporation (Kia Corp.), Korea University Research and Business Foundation
• Original Assignee: Hyundai Motor Company (Hyundai Motor Group), Kia Motors Corporation (Kia Corp.), Korea University Research and Business Foundation
• Inventors: NOH, Dong Gyu, PARK, Jong Rok, SUNG, Su Lyun, PARK, Yong Tae, KIM, Byung Jo, YANG, Seung Nam, HA, Ji Hun, LIM, Sung Heon, KIM, Hyo Gon
• Granted Patent: US 9,084,190 B2
• Time in Patent Office: Days
• US Class Current: 455/502
• CPC Class Codes: H04W 56/001 Synchronization between nodes
• CPC Class Codes: H04W 84/18 Self-organising networks, e.g. ad-hoc networks or sensor networks

Abstract

An apparatus and a method for inter-vehicle communication includes a communicator communicating with another vehicle and a position determiner verifying position information of a vehicle, A controller is configured to synchronize a time point of transmitting/receiving a message to/from the other vehicle through a signal from the position determiner, performing a phase control for transmitting message, and transmitting the message to the other vehicle at a determined time point of transmitting the message according to the phase control result.

Claims

1. An inter-vehicle communication apparatus, comprising:

a communicator for communicating between a first vehicle and another vehicle;

a position determiner verifying position information of the first vehicle; and

a controller synchronizing a time point of transmitting/receiving a message to/from the other vehicle through a signal of the position determiner, performing a phase control for transmitting the message, and transmitting the message to the other vehicle at a determined time point of transmitting the message according to a phase control result.

2. The apparatus according to claim 1, wherein the controller synchronizes the time point of transmitting/receiving the message using an epoch.

3. The apparatus according to claim 2, wherein the controller generates an epoch map configured of information including an ID of the other vehicle, the epoch, and a data rate of the time point of transmitting the message based on the message received from a plurality of the other vehicles.

4. The apparatus according to claim 3, wherein the controller calculates an epoch utilization by allocating a different utilization weight to the data rate of the time point of transmitting the messages received from a plurality of the other vehicles.

5. The apparatus according to claim 4, wherein the controller performs the phase control for prioritizing a message having a higher data rate based on the epoch utilization.

6. The apparatus according to claim 5, wherein the controller selects a final epoch according to the phase control result and disperses the time point of transmission by applying an intra-epoch to the final epoch.

7. The apparatus according to claim 6, wherein the controller determines any one time point among the dispersed time point of transmission by applying a time displacement.

8. A method for inter-vehicle communication, the method comprising:

synchronizing, by a controller in a first vehicle, a time point of transmitting/receiving messages to/from another vehicle using a signal for the first vehicle verified by a position determiner;

performing a phase control for transmitting the message;

determining a time point of transmitting the message according to the phase control result; and

transmitting the message to the other vehicle in the determined time point of transmitting the message.

9. The method according to claim 8, wherein synchronizing of the time point of transmitting/receiving the messages to/from other vehicle using the signal for the first vehicle comprises synchronizing the time point of transmitting/receiving the message using an epoch.

10. The method according to claim 9, before performing the phase control, further comprising verifying an epoch map configured of information including an ID of the other vehicle, the epoch, and a data rate of the time point of transmitting the message based on the message received from a plurality of the other vehicles.

11. The method according to claim 10, after verifying the epoch map, further comprising calculating an epoch utilization by allocating a different utilization weight to the data rate of the time point of transmitting the message received from a plurality of the other vehicles.

12. The method according to claim 11, wherein performing the phase control comprises performing the phase control for prioritizing a message having a higher data rate based on the epoch utilization.

13. The method according to claim 12, wherein determining the time point of transmitting the message comprises:

selecting a final epoch according to the phase control result and dispersing the time point of transmission by applying an intra-epoch to the final epoch; and

determining any one time point among the dispersed time point of transmission by applying a time displacement to determine the time point of transmission.