TWO-WAY TIRE PRESSURE MONITORING SYSTEM AND METHOD USING ULTRA HIGH FREQUENCY

• US 20110254678A1
• Filed: 04/19/2010
• Published: 10/20/2011
• Est. Priority Date: 04/19/2010
• Status: Abandoned Application

• Current Assignee: Delta Electronics Incorporated
• Original Assignee: Delta Electronics Incorporated
• Inventors: Sun, Chun-Yi, Lin, Jon-Hong
• Application Number:
  US12/762,805
• Publication Number:
  US 20110254678A1
• Time in Patent Office: Days
• US Class Current: 340/447
• CPC Class Codes: B60C 23/0438 comprising signal transmission means, e.g. for a bidirectional communication with a corresponding wheel mounted receiver
• CPC Class Codes: B60C 23/0461 externally triggered, e.g. by wireless request signal, magnet or manual switch

Abstract

A two-way tire pressure monitoring method using ultra high frequency (UHF) is used for a vehicle controller 100 and one or more tire pressure monitoring module 200. When a tire pressure data signal is transmitted to the vehicle controller 100 by the tire pressure monitoring module 200, the tire pressure data signal is transmitted via first predetermined uhf carrier. When a control signal is transmitted to the tire pressure monitoring module 200 by the vehicle controller 100, the control signal is transmitted via second predetermined uhf. The frequency of the first predetermined UHF carrier and the frequency of the second predetermined UHF carrier are the same or different.

Claims

1. A two-way tire pressure monitoring system 10 using ultra high frequency, comprising:

a vehicle controller 100; and

a tire pressure monitoring module 200, connected to the vehicle controller 100 via wireless signals,

wherein the vehicle controller 100 comprises;

a vehicle micro controller unit 104;

a vehicle RF transmitter unit 102, electrically coupled to the vehicle micro controller unit 104; and

a vehicle RF receiver unit 106, electrically coupled to the vehicle micro controller unit 104,

wherein the tire pressure monitoring module 200 comprises;

a tire micro controller unit 210;

a tire RF transmitter unit 202, electrically coupled to the tire micro controller unit 210;

a tire RF receiver unit 204, electrically coupled to the tire micro controller unit 210; and

a tire pressure inspection unit 206, electrically coupled to the tire micro controller unit 210,

wherein, the tire pressure monitoring module 200 transmits a tire pressure data signal to the vehicle controller 100, the tire pressure data signal is transmitted via first predetermined UHF carrier; and

the vehicle controller 100 transmits a control signal to the tire pressure monitoring module 200, the control signal transmitted via a second predetermined UHF carrier.

2. The system 10 of claim 1, wherein the frequency range of the first predetermined UHF carrier is 300 mhz˜

3 ghz.

3. The system 10 of claim 1, wherein the frequency range of the second predetermined UHF carrier is 300 mhz˜

3 ghz.

4. The system 10 of claim 1, wherein the frequency of the first predetermined UHF carrier and the frequency of the second predetermined UHF carrier are the same.

5. A two-way tire pressure monitoring method using ultra high frequency used for a vehicle controller 100 and a tire pressure monitoring module 200, the tire pressure monitoring module 200 transmitting a tire pressure data signal to the vehicle controller 100 transmitted via first predetermined uhf carrier, the method comprising:

a. the vehicle controller 100 transmitting a control signal via a second predetermined UHF carrier to the tire pressure monitoring module 200.

6. The method of claim 5, wherein the control signal in the step a is a trigger signal to start monitor the tire pressure, the method further comprising:

b. the tire pressure monitoring module 200 starting to monitor tire pressure and generate the tire pressure data signal; and

c. the tire pressure monitoring module 200 transmitting the tire pressure data signal via the first predetermined UHF carrier to the vehicle controller 100.

7. The method of claim 5, wherein the control signal in the step a is a hibernate signal, an engine 20 stops operating in the step a, the vehicle controller 100 transmits the hibernate signal via the second predetermined UHF carrier to the tire pressure monitoring module 200 to trigger the tire pressure monitoring module 200 entering into hibernate mode.

8. The method of claim 5, wherein the carrier frequency of the first predetermined UHF carrier range is 300 mhz˜

3 ghz.

9. The method of claim 5, wherein the carrier frequency of the second predetermined UHF carrier range is 300 mhz˜

3 ghz.

10. The method of claim 5, wherein the carrier frequency of the first predetermined UHF carrier and the carrier frequency of the second predetermined UHF carrier are the same.