System and method for converting and communicating operational characteristics of tires

• US 20020030592A1
• Filed: 06/18/2001
• Published: 03/14/2002
• Est. Priority Date: 06/26/2000
• Status: Abandoned Application

• Current Assignee: Nokian Tyres PLC
• Original Assignee: Nokian Tyres PLC
• Inventors: Hakanen, Jukka A. P., Laitsaari, Juha M.T.
• Application Number:
  US09/881,758
• Publication Number:
  US 20020030592A1
• Time in Patent Office: Days
• US Class Current: 340/442
• 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: B60C 23/0433 Radio signals

Abstract

A system integrated to each of the tires mounted to a vehicle allows each of the tires to communicate with a mobile communicator, such as for example a mobile phone. The system includes at least sensors for monitoring and measuring the pressure and temperature of the tire. The measured parameters of the tire are fed to a processor that compensates the measured pressure with the measured temperature. The temperature corrected tire pressure is then stored in a memory store. A communications module, operating under a wireless data link protocol such as for example the Bluetooth protocol, sends the stored information to a mobile phone, in response to a request thereby. The temperature corrected data of the tire is also transmitted to the other tires of the vehicle. Any one of the tires may act as the server of all of the other tires for transmitting the information of the respective tires of the vehicle to the mobile phone, which acts as the browser. Alternatively, the mobile phone could request that information of the various tires be sent to it individually by the respective tires. In place of Bluetooth signals being transmitted from the tires, the tires may be equipped with radio frequency (RF) transceiver modules that transmit RF signals to a converter system, which converts the RF signals into Bluetooth signals, which are then broadcast to telecommunication devices adpatable to receive Bluetooth signals.

Claims

1. In combination, a vehicle having at least one tire, sensor means in working relation with said tire, said sensor means monitoring the operational characteristics of said tire, tire transceiver means working cooperatively with said sensor means for outputting a first signal having a first frequency representative of the operational characteristics of said tire, independent means operating separately from said sensor means for receiving said first signal, converting said first signal into a second signal having a frequency adaptable to be used by a plurality of communications devices, and outputting the converted second signal to at least one of said communications device.

2. The combination of claim 1, wherein said communications devices operate under a communications protocol;

and

wherein said protocol adaptable to be used by said communications devices comprises Bluetooth (BT).

3. The combination of claim 1, wherein said vehicle comprises a Controller Area Network (CAN);

and

wherein said independent means and transceiver means are parts of said CAN.

4. The combination of claim 1, wherein said vehicle further comprises:

receiver means operable under a communications protocol adaptable to receive said second signal from said independent means; and

a display for displaying the operational characteristics of the tire representative of said second signal.

5. The combination of claim 1, wherein said vehicle comprises an entertainment console having a display, further comprising:

means for receiving and modifying said first signal so that the operational characteristics of the tire represented by said first signal can be displayed on said display.

6. The combination of claim 1, wherein said independent means comprises a first transceiver module for receiving said first signal from said tire, a processor for calculating the operational characteristics of said tire from said first signal, and a second transceiver module for outputting the calculated operational characteristics of said tire as said second signal.

7. The combination of claim 6, wherein at least one of said communications devices comprises a Wireless Application Protocol (WAP) telecommunications device;

and

wherein said second transceiver module outputs the calculated operational characteristics of said tire as a Bluetooth (BT) signal to said WAP telecommunications device.

8. The combination of claim 1, wherein said independent means comprises a display for displaying pre-formatted information including the pressure and temperature of each tire of said vehicle.

9. The combination of claim 1, wherein said independent means comprises key means actuatable by a user to set the respective positions of each of the tires on said vehicle and at least one preset limit for activating a warning alarm when triggered by at least one of the operational characteristics of said each of the tires.

10. The combination of claim 1, wherein said sensor means is adaptable to be integrated to said tire, provided inside said tire, or coupled to the rim to which said tire is mounted about.

11. In a vehicle having at least one tire, a system for monitoring the operational characteristics of said tire comprising:

sensor means working cooperatively with said tire for monitoring the operational characteristics of said tire;

tire transceiver means working cooperatively with said sensor means for outputting a first signal having a first frequency representative of the operational characteristics of said tire; and

converter means for receiving said first signal, converting said first signal into a second signal having a second frequency, and outputting said second signal to a remote communications device adapted to receive signals of said second frequency.

12. The system of claim 11, wherein said first frequency is 433 MHz and said second frequency is 2.45 GHz.

13. The system of claim 11, wherein said converter means comprises a first transceiver module for receiving said first signal from said tire, a second transceiver module for outputting said second signal as a Bluetooth (BT) signal to a Wireless Application Protocol (WAP) based telecommunications means, and a processor for calculating the tire characteristics from said first signal.

14. The system of claim 11, wherein said vehicle further comprises:

receiver means for receiving said second signal from said converter means or said first signal from said transceiver means; and

a display for displaying the operational characteristics of said tire represented by either said first signal or said second signal.

16. The system of claim 15, wherein said first communications protocol comprises a first frequency and said second communications protocol comprises a Bluetooth (BT) frequency.

17. The system of claim 15, wherein said first frequency is 433 MHz and said second frequency is 2.45 GHz.

18. The system of claim 15, wherein said converter means comprises:

a first transceiver module for receiving said one signal;

processor means for calculating the operational characteristics of said tire from data carried by said one signal; and

a second transceiver module for outputting the calculated operational characteristics of said tire as said other signal.

20. Apparatus of claim 19, wherein said second transceiver means outputs said other signal to said communications means only upon a request from said communications means.

21. Apparatus of claim 19, wherein said other signal comprises a Bluetooth (BT) signal.

22. Apparatus of claim 19, further comprising:

memory means for storing the operating system for running said processor means and user configurable parameters for processes performed by said processor means to calculate said quantities from said data bits.

23. Apparatus of claim 19, further comprising:

a display for displaying the operational characteristics of tires; and

key means for setting at least one alarm limit for outputting an alarm signal when said alarm limit is triggered by at least one of the operational characteristics of said tire.

24. Apparatus of claim 19, further comprising:

power control means for minimizing the amount of power used by shutting down said first and second transceiver means after respective predetermined periods of time.

26. The method of claim 25, wherein said first communications protocol comprises a 433 MHz frequency and said second communications protocol comprises a Bluetooth (BT) frequency.

27. The method of claim 25, further comprising the step of:

displaying the operational characteristics of said tire represented by said second signal on a display.

28. The method of claim 25, further comprising the step of:

selectively shutting down said steps c, d, e and f after at least one predetermined time period.

30. The method of claim 29, further comprising the step of:

outputting said other signal to at least one communications device adaptable to receive signals of said second communications protocol.

15. In a vehicle having at least one tire, a system for monitoring the operational characteristics of said tire comprising:

sensor means in working relation with said tire for monitoring the operational characteristics of said tire;

tire transceiver means working cooperatively with said sensor means for outputting one signal representative of the operational effectiveness of said tire, said signal having a first communications protocol; and

converter means for receiving said one signal and converting said one signal into an other signal having a second communications protocol, said converter means outputting said other signal to a telecommunications device adapted to receive signals having said second communications protocol.

19. Apparatus for converting a signal of one frequency to an other signal of a different frequency, comprising:

first transceiver means for receiving one signal having one frequency representative of the operational characteristics of at least one tire, and for converting said one signal into corresponding data bits;

processor means for calculating quantities relating to the operational characteristics of said tire using said data bits; and

second transceiver means for receiving said quantities from said processor means, and converting said quantities into an other signal having an other frequency corresponding to the operational characteristics of said tire, said second transceiver means outputting said other signal to at least one communications means adaptable to receive said other signal.

25. In combination with a vehicle having at least one tire, a method of broadcasting the operational characteristics of said tire comprising the steps of:

a) monitoring the operational characteristics of said tire;

b) outputting the monitored operational characteristics of said tire as a first signal having a first communications protocol;

c) converting said first signal into corresponding data bits;

d) calculating quantities relating to the operational characteristics of said tire using said data bits;

e) converting the calculated quantities into a second signal having a second communications protocol; and

f) outputting said second signal to at least one communications device adaptable to receive signals having said second communications protocol.

29. For monitoring the operational characteristics of a tire on a vehicle, a method of converting one signal of one communications protocol to an other signal of an other communications protocol, comprising the steps of:

a) receiving said one signal of said one communications protocol from said tire, said one signal containing information relating to the operational characteristics of said tire;

b) converting said one signal into corresponding data bits;

c) using said data bits to calculate quantities representing the operational characteristics of said tire; and

d) converting the calculated quantities into said other signal of said other communications protocol, said other signal containing information relating to the operational characteristics of said tire.

31. In combination, a vehicle having at least one tire, sensor means mounted to said tire, said sensor means monitoring the operational characteristics of said tire, tire transceiver means working cooperatively with said sensor means for outputting a first frequency signal representative of the operational characteristics of said tire, an entertainment console in said vehicle having a receiver with a display, means for receiving said first frequency signal and modifying said first frequency signal into a second signal with a frequency usable for displaying the operational characteristics of said tire on the display of said console.

32. The combination of claim 31, wherein said entertainment console comprises a radio having a display;

and

wherein the operational characteristics of the tire are displayed on the display of said radio.

33. The combination of claim 31, further comprising:

converter means for receiving said first frequency signal, converting said first frequency signal into a signal having a second frequency, and outputting said second signal to a remote telecommunications device adapted to receive signals of said second frequency.

34. The combination of claim 33, wherein said converter means is portable and can be used from one vehicle to another vehicle.