Wireless transmission method for tire detection signals

• US 7,269,530 B1
• Filed: 05/02/2006
• Issued: 09/11/2007
• Est. Priority Date: 05/02/2006
• Status: Active Grant

• Current Assignee: Universal Scientific Industrial Co., Ltd. (ASE Technology Holding Co., Ltd.)
• Original Assignee: Universal Scientific Industrial Co., Ltd. (ASE Technology Holding Co., Ltd.)
• Inventors: Lin, Chen-Wei, Lu, Meng-Cheih
• Primary Examiner(s): Cosimano; Edward R
• Application Number:
  US11/415,215
• Time in Patent Office: 497 Days
• Field of Search: 731/46, 731/462, 731/463, 731/464, 731/465, 731/468, 340/438, 340/442, 340/446, 340/447, 340/448, 340/449, 702/138, 702/140, 702/141, 702/142, 702/145
• US Class Current: 702/141
• CPC Class Codes: B60C 23/0408 transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver
• CPC Class Codes: G01M 17/02 Tyres
• CPC Class Codes: G01P 3/22 transferred to the indicator by electric or magnetic means

Abstract

A wireless transmission method for tire detection signals increases the percentage of successfully received tire detection signals received by the receiving unit and extends the usage life of batteries. A delay time for emitting the tire detection signals via the detection unit is calculated according to the acceleration of the tire. The operation time for one rotation of the tire is divided into several equal periods. Then, the tire detection signals are emitted to the receiving unit via a wireless transmission method.

Claims

1. A wireless transmission method for tire detection signals, comprising:

providing at least one a detection unit on a tire of a vehicle system for detecting acceleration values of the tire and values of at least one other status signal of the tire during rotation thereof;

calculating a velocity value from detected acceleration values;

calculating an operation time for one tire rotation according to the velocity value during each tire rotation;

dividing the operation time into a multiplicity of equal time periods; and

repeatedly emitting a value of the at least one other status signal to a receiving unit in the vehicle system via a wireless transmission method during each tire rotation, the repeated emissions being at each of the equal time periods.

2. The wireless transmission method for tire detection signals as claimed in claim 1, wherein the operation time is divided by a value that is greater than or equal to two.

3. The wireless transmission method for tire detection signals as claimed in claim 1, wherein the detection unit comprises a detector set, a first processing unit, and a signal transmitting terminal.

4. The wireless transmission method for tire detection signals as claimed in claim 3, wherein the first processing unit processes the acceleration values to generate the velocity value and determine the multiplicity of equal time periods.

5. The wireless transmission method for tire detection signals as claimed in claim 3, wherein the signal transmitting terminal emits the value of the at least one other status signal via a wireless transmission method to the receiving unit.

6. The wireless transmission method for tire detection signals as claimed in claim 3, wherein the detector set comprises a first detector and a second detector.

7. The wireless transmission method for tire detection signals as claimed in claim 6, wherein the first detector is a tire pressure detector for detecting a pressure value of the tire as the tire is rotated.

8. The wireless transmission method for tire detection signals as claimed in claim 6, wherein the second detector is an acceleration detector for detecting the acceleration values as the tire is rotated.

9. The wireless transmission method for tire detection signals as claimed in claim 3, wherein the receiving unit comprises a signal receiving terminal, a second processing unit, and a display unit.

10. The wireless transmission method for tire detection signals as claimed in claim 9, wherein the signal receiving terminal receives the value of the at least one other status signal transmitted from the detection unit and transmits the value of the at least one other status signal to the second processing unit.

11. The wireless transmission method for tire detection signals as claimed in claim 9, wherein the second processing unit is used for processing the value of the at least one other status signal to generate a data signal.

12. The wireless transmission method for tire detection signals as claimed in claim 11, wherein the display unit receives the data signal input from the second processing unit and displays the data signal.