Tire position detecting system and tire position detecting method

• US 8,749,369 B2
• Filed: 11/30/2010
• Issued: 06/10/2014
• Est. Priority Date: 12/03/2009
• Status: Active Grant

• Current Assignee: Seetron Inc.
• Original Assignee: Seetron Inc.
• Inventors: Lee, Kyu Cheol, Ahn, Seok Chul, Jung, Hee Yong, Joo, Jae Yun
• Primary Examiner(s): Lee, Benjamin C
• Assistant Examiner(s): BLACK-CHILDRESS, RAJSHEED O
• Application Number:
  US13/513,218
• Publication Number:
  US 20120268263A1
• Time in Patent Office: 1,288 Days
• Field of Search: None
• US Class Current: 340/442
• CPC Class Codes: B60C 23/0416 allocating a corresponding wheel position on vehicle, e.g. front/left or rear/right
• CPC Class Codes: B60C 23/0462 Structure of transmission protocol
• CPC Class Codes: B60C 23/0472 to manually allocate ID codes or mounting positions, e.g. by service technicians
• CPC Class Codes: B60C 23/0479 Communicating with external units being not part of the vehicle, e.g. tools for diagnostic, mobile phones, electronic keys or service stations

Abstract

The present invention relates to a system and a method for sensing positions of tires. The system for sensing the positions of the tires comprises: a plurality of transmitters having identification numbers (ID) which are attached to inner parts of a plurality of tires to detect the states of the tires; an external device which records position information of the transmitters located in a vehicle in each of the transmitters; and a receiver for receiving the IDs and the state information and the position information of the tires.

Claims

1. A tire position detecting system, comprising:

a plurality of transmitters attached within a plurality of tires to detect state information of the plurality of tires and in which IDs of the tires are stored, respectively, each transmitter having a unique ID;

an external device for recording position information of the plurality of transmitters positioned in a vehicle in the plurality of transmitters, respectively; and

a receiver for receiving the IDs, the tire state information, and the position information from the plurality of transmitters,

wherein the receiver includes a memory in which tire position numbers corresponding to the positions of the tires of the vehicle, respectively are recorded, and wherein the tire position numbers are matched with the position information received from the transmitters, and the tire state information and the IDs corresponding to the position information are recorded in fields allocated to the matched tire position numbers,

wherein if a new ID other than the IDs stored in the memory is received by more than a predetermined reference number of times with some of the IDs stored in the memory not being received within a first set time period, the receiver matches the new ID with the tire position number of the ID which has not been received.

2. The tire position detecting system of claim 1, wherein the external device records changed position information in the transmitter whose position in the vehicle is changed.

3. The tire position detecting system of claim 1, wherein a reference number of times is based on a number of times by which receptions are made within a second preset time period, and the second time period is longer than the first time period.

4. The tire position detecting system of claim 1, wherein the tire information contains pressure information of the tire.

5. A tire position detecting method of a tire position detecting apparatus including:

a plurality of transmitters each having a unique ID attached within a plurality of tires to detect state information of the plurality of tires and in which IDs of the tires are embedded, respectively; and

a receiver for receiving the tire state information, and the IDs from the plurality of transmitters, the method comprising the steps of;

receiving, by the plurality of transmitters, position information of the plurality of transmitters positioned in a vehicle from an external device located outside the vehicle, respectively;

if the vehicle is determined to be in a driving mode, detecting, by the plurality of transmitters, the state information of the plurality of tires;

transmitting, by the plurality of transmitters, the IDs and the position information to the receiver together with the detected tire state information;

matching, by the receiver, the tire position numbers stored in a memory of the receiver in advance with the position information and storing in the memory the IDs and the tire state information corresponding to position information in the matched tire position number;

determining, by the receiver, whether or not all of the IDs stored in the memory are received within a first set time period;

determining, by the receiver, whether or not a new ID other than the IDs stored in the receiver is input for a second time period by more than a predetermined reference number of times with some of the IDs not being received; and

if the new ID is received by a preset reference number of times for a second time period, matching, by the receiver, the new ID with the tire position number of the ID which has not been received.

6. The tire position detecting method of claim 5, further comprising:

changing the position information of the transmitter whose tire position in the vehicle is changed by a signal received from the external device.

7. The tire position detecting method of claim 5, wherein the second time period is longer than the first time period.

8. The tire position detecting method of claim 5, wherein the reference number of times is larger than a number of times of one ID input within the first time period.

9. The tire position detecting method of claim 5, wherein the tire information contains pressure information of the tire.