Method of preparing a universal tire pressure monitoring sensor

Abstract

A method of programming a tire pressure monitoring device includes the step of forming a physical interface between a tire pressure monitoring device and a programming device. The programming device includes a first memory including a plurality of selectable programs that provide instructions defining a communication protocol for communication between a tire pressure monitoring device and a receiver. The method further includes the step of selecting through a user interface of the programming device a desired one of the plurality of selectable programs and loading the selected one of the plurality of selectable programs from the first memory device of the programming device to a second memory device disposed within the tire pressure monitoring device.

Description

BACKGROUND OF THE INVENTION

This disclosure relates to tire pressure monitoring devices. More particularly, this disclosure relates to a universal tire pressure monitoring device and method that is adaptable for operation according to different manufacture protocols.

A tire pressure monitoring device is typically mounted to a wheel within the tire and transmits information indicative of conditions within the tire. The transmissions and order of information are defined by a defined protocol corresponding to a receiver within the vehicle. Each automobile manufacturer has a unique preferred defined protocol to meet application specific needs and designs.

Disadvantageously, such different and unique protocols require corresponding unique tire pressure monitoring sensors, thereby complicating maintenance and service operations.

SUMMARY OF THE INVENTION

A disclosed example tire pressure monitoring device includes a memory that is configurable to either hold a plurality of communication protocols or to be flash programmed with a single communication program to govern operation.

An example disclosed tire pressure monitoring device includes a memory that holds several different communication protocols. Each of these communication protocols correspond to each manufacturers preferred communications protocol.

The example disclosed tire pressure monitoring device includes a memory device adapted to store a plurality of different communication protocols. Upon installation of the tire pressure monitoring device, a programming module initiates a signal to each of the tire pressure monitoring devices that selects which communication protocol will govern operation of that tire pressure monitoring device.

Another disclosed example tire pressure device includes a memory that does not include a communications protocol. The tire pressure monitoring device is flash programmed from a programming device including each of the different communication protocols for each of the different original equipment manufacturers. The tire pressure monitoring device is interfaced with the programming device and flash programmed with the desired communication protocol. The programmed tire pressure monitoring devices is then installed within the vehicle tire.

Accordingly, the example tire pressure monitoring devices are capable of operating with different systems and operating according to different communications protocols.

These and other features of the present invention can be best understood from the following specification and drawings, the following of which is a brief description.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic representation of an example universal tire pressure monitoring system.

FIG. 2 is a schematic representation of another example universal tire pressure monitoring system.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

Referring to FIG. 1, a tire pressure monitoring system 10 is shown assembled within a vehicle 12. The system 10 includes a receiver 16 that receives communications from tire pressure monitoring devices 14 assembled within each of the vehicle's tires 18. As is understood by those skilled in the art, each of the tire pressure monitoring devices 14 are assembled within the tires 18 and communicate information indicative of conditions within the tires 18 to the receiver 16. These conditions include temperature, pressure, and any other desired information that aids in the monitoring of tire conditions.

The example system 10 includes the tire pressure monitoring devices 14 that all include a memory device 26. The memory device 26 is utilized for the storage of a plurality of communication protocols 28. The communication protocols 28 include individual and unique protocols that govern operation and communication between the tire pressure monitoring device 14 and the receiver 16. Because each tire pressure monitoring device 14 includes several desired communication protocols for different manufacturers, all that is required is that the tire pressure monitoring device 14 be installed within the tire 18. Once the tire pressure monitoring device 14 is installed with the tire 18, one of the plurality of communication protocols 28 is selected to govern operation and communication.

Selection of a desired one of the communication protocols is accomplished through the use of a programming device 20. The example programming device 20 emits a wireless signal 22 that is received by a corresponding one of the tire pressure monitoring devices 14. The programming device 20 includes a series of selectable buttons 24 that are actuated by an operator to indicate which of the several communication protocols is desired for that tire pressure monitoring device to operate. Although the example device 20 is shown with buttons, other display and selection configurations, such as touch screen or other selection interface are within the contemplation of this invention.

Accordingly, installation of the example universal tire pressure monitoring devices 14 includes the initial step of physically installing the tire pressure monitoring devices 14 within each of the corresponding tires 18. At this step in the installation process, no communication protocol selection is required. This is so because each of the tire pressure monitoring devices 14 has stored within it all of the desired communication protocols 28 required for communicating with any of several original equipment receivers 15.

Once the tire pressure monitoring devices 14 are physically installed within each of the tires 18, the programming device 20 is actuated. The programming device is placed proximate each of the tire pressure monitoring devices 14 to send a signal 22. The example signal 22 is a low frequency transmission received by the proximate tire pressure monitoring device 14. The signal 22 triggers the tire pressure monitoring device to operate according to a selected one of the stored communication protocols 28. For example, in this instance, if the operator selects button number one, the corresponding tire pressure monitoring device 14 will operate according to the stored communication protocol 28 indicated as 1. The tire pressure monitoring device 14 can be reclaimed and the communication protocol reset by deactivating a currently selected one of the plurality of selectable communication protocols 28 and selecting a different one of the plurality of selectable programs 28.

Of course it is within the contemplation of this invention that the controller may include other control operations not just the buttons 24 indicated in the illustrated example. Further, it is also within the contemplation of this invention that the programming device 20 may utilize other wireless communication protocols to communicate and trigger the selection of the desired communication protocol in which the corresponding tire pressure monitoring device 14 would operate.

Referring to FIG. 2, another example tire pressure monitoring system 32 utilizes a tire pressure monitoring device 34 that includes a memory 40. The memory 40 of the tire pressure monitoring device 34 does not include any communication protocol data. Instead, the memory 40 is provided with a space for a communications protocol. The tire pressure monitoring device 34 with the blank memory 40 is in essence a blank slate as indicated by 42. The blank tire pressure monitoring device 42 is inserted within a programming device 36. The programming device 36 includes a memory device 38 that stores the plurality of communication protocols 28. The tire pressure monitoring device 34 is placed into electrical communication by way of an interface with the programmer 36. The programmer 36 is then actuated to download or flash program one of the communication protocols 28 from the memory device 38 into the memory device 40 of the tire pressure monitoring device. This step is accomplished prior to installation into the vehicle 12.

Accordingly, each tire pressure monitoring device 34 that is to be assembled into a vehicle is first flash programmed using the programming device 36 to install and select a desired communication protocol 28. The tire pressure monitoring device is thereby set and capable of operation only according to that flash programmed communication protocol. Programmed tire pressure monitoring devices 34 are indicated as being programmed by reference numeral 44, can then be installed within the vehicle 12 to operate with the specific vehicle receiver 16.

During the installation process of the example system illustrated in FIG. 2, a plurality of blank tire pressure monitoring devices 34 would be available for flash programming upon the desired need. The example non-programmed tire pressure monitoring devices are indicated at 42. Prior to installation within the vehicle 12, each tire pressure monitoring device 34 is loaded with a program by the programming device 36. The example interface between the programming device 36 and the tire pressure monitoring device 34 is a physical connection. However, wireless connections could also be utilized for loading the desired communication protocol into the tire pressure monitoring device 34. The programmed tire pressure monitoring devices indicated at 44 can then be installed within the vehicle 12.

It should be understood that a computing device can be used to implement various functionality and operation of the example programming devices 20, and 36. In terms of hardware architecture, such a computing device can include a processor, a memory, and one or more input and/or output (I/O) device interface(s) that are communicatively coupled via a local interface. The local interface can include, for example but not limited to, one or more buses and/or other wired or wireless connections. The processor may be a hardware device for executing software, particularly software stored in memory. The processor can be a custom made or commercially available processor, a central processing unit (CPU), an auxiliary processor among several processors associated with the computing device, a semiconductor based microprocessor (in the form of a microchip or chip set) or generally any device for executing software instructions.

The memory can include any one or combination of volatile memory elements (e.g., random access memory (RAM, such as DRAM, SRAM, SDRAM, VRAM, etc.)) and/or nonvolatile memory elements (e.g., ROM, hard drive, tape, CD-ROM, etc.). Moreover, the memory may incorporate electronic, magnetic, optical, and/or other types of storage media. Note that the memory can also have a distributed architecture, where various components are situated remotely from one another, but can be accessed by the processor.

The software in the memory may include one or more separate programs, each of which includes an ordered listing of executable instructions for implementing logical functions. When constructed as a source program, the program is translated via a compiler, assembler, interpreter, or the like, which may or may not be included within the memory.

Accordingly, the example tire pressure monitoring devices 14, 34 and programming devices 20, 36 provide a system and device capable of operating according to different communication protocols.

Although a preferred embodiment of this invention has been disclosed, a worker of ordinary skill in this art would recognize that certain modifications would come within the scope of this invention. For that reason, the following claims should be studied to determine the true scope and content of this invention.

Claims

1. A method of programming a tire pressure monitoring device comprising: mounting a tire pressure monitoring device to a mounting location of a programming device to establish a physical interface therebetween, the programming device including a first memory including a first program and a second program, the first program configured to govern operations and communications of the tire pressure monitoring device according to a first protocol associated with a first automobile manufacturer, the second program configured to govern operations and communications of the tire pressure monitoring device according to a second protocol associated with a second automobile manufacturer, wherein the physical interface comprises a cavity corresponding to a shape of the tire pressure monitoring device;selecting through a user interface of the programming device a desired one of the first program or the second program, the selection being accomplished by an indicator that is non-specific to an automobile manufacturer;loading the selected one of the first program or the second program from the first memory device of the programming device to a second memory device disposed within the tire pressure monitoring device; andwherein selecting the first program or the second program causes the deactivation of a third program that has been active immediately before the deactivation occurs in the tire pressure monitoring device, the deactivation occurring after initialization of the tire pressure monitoring device is complete.

2. The method as recited in claim 1, wherein the mounting location of the programming device includes the physical interface for holding the tire pressure monitoring device on the programming device.

3. The method as recited in claim 1, wherein the physical interface includes a physical electric connection between the tire pressure monitoring device and the programming device, and the selected first program or the second program is loaded from the first memory device to the second memory device over the physical electrical connection.

4. The method as recited in claim 2, wherein the mounting location substantially limits movement of the tire pressure monitoring device with respect to the programming device.

5. The method as recited in claim 4, wherein mounting location includes an opening defining a shape that corresponds to an outer shape of the tire pressure monitoring device.

6. The method as recited in claim 5, wherein the mounting location orientates the tire pressure monitoring device widthwise and generally parallel with respect to the user interface.

7. The method as recited in claim 2, wherein loading of the selected one of the first program or the second program from the first memory device of the programming device to a second memory device comprises flash programming the tire pressure monitoring device physically supported on the programming device.

8. The method as recited in claim 2, wherein the programming device wirelessly programs the tire pressure monitoring device.

9. The method as recited in claim 6, wherein the programming device communicates with the tire pressure monitoring device through a low frequency transmission.

10. The method as recited in claim 1, further comprising the step of actuating the user interface of the programming device to communicate a desired communication protocol to the tire pressure monitoring device.

11. The programming system as recited in claim 1, wherein the user interface comprises a plurality of individually operable buttons representing a different one of the plurality of selectable programs.

12. The programming system as recited in claim 1, wherein the programming device includes a display and the user interface comprises a plurality of buttons operable to select items viewable on the display including one of the first program or the second program.

13. The programming system as recited in claim 2, wherein the physical interface and user interface are combined into a single integrated unit.

14. A method of installing a tire pressure monitoring device comprising: mounting a tire pressure monitoring device onto a programming device to establish a communication link between the tire pressure monitoring device and the programming device, wherein the tire pressure monitoring device includes a programmable memory and a transmitter/receiver capable of communicating wirelessly with a receiver of a vehicle based upon instruction stored in the programmable memory;transferring a selectable one of a first program or a second program from a memory device in the programming device to the programmable memory of the tire pressure monitoring device through the established communication link, the first program configured to govern operations and communications of the tire pressure monitoring device according to a first protocol associated with a first automobile manufacturer, the second program configured to govern operations and communications of the tire pressure monitoring device according to a second protocol associated with a second automobile manufacturer, the selection being accomplished by an indicator that is non-specific to an automobile manufacturer,installing the tire pressure monitoring device on at least one wheel of the vehicle including the receiver; anddeactivating a third program that has been active immediately before the deactivation occurs at the tire pressure monitoring device upon selection of the first program or the second program, the deactivation occurring after initialization of the tire pressure monitoring device is complete.

15. The method as recited in claim 14, wherein the programming device defines a mounting location for receiving and holding the tire pressure monitoring device during transfer of the program, wherein the mount location comprises a cavity including a shape configured for receiving the tire pressure monitoring device.

16. The method as recited in claim 15, wherein the mounting location substantially limits movement of the tire pressure monitoring device with respect to the programming device.

17. The method as recited in claim 16, wherein the mounting location includes an opening defining a shape that corresponds to an outer shape of the tire pressure monitoring device.

18. The method as recited in claim 17, wherein the mounting location orientates the tire pressure monitoring device widthwise and generally parallel with respect to a user interface of the programming device.

19. The method as recited in claim 15, wherein mounting of the tire pressure monitoring device further includes establishing a physical electrical connection between the tire pressure monitoring device and the programming device.

20. The method as recited in claim 14, wherein establishing the communication link comprises establishing a wireless link between the programming device and the tire pressure monitoring device.

21. The method as recited in claim 20, including actuation of portions of a user interface of the programming device for selecting one of the first program or the second program stored in the memory device of the programming device.

22. The method as recited in claim 21, wherein the user interface comprises a display and manually operable features actuateable for initiating communication of one of the first program or the second program stored in the memory device of the programming device to the programmable memory of the tire pressure monitoring device.

23. A method of programming a tire pressure monitoring device comprising: forming a physical interface between a tire pressure monitoring device and a programming device for holding the tire pressure monitoring device on the programming device, wherein the physical interface includes a mount for holding the tire pressure monitoring device on the programming device, the programming device including a first memory including a first program and a second program, the first program configured to govern operations and communications of the tire pressure monitoring device according to a first protocol associated with a first automobile manufacturer, the second program configured to govern operations and communications of the tire pressure monitoring device according to a second protocol associated with a second automobile manufacturer;deactivating a currently selected program that has been active immediately before the deactivation occurs, the currently selected program in a second memory device of the tire pressure monitoring device, the deactivation occurring after initialization of the tire pressure monitoring device is complete;selecting through a user interface of the programming device a different one of the first program and a second program, the selection being accomplished by an indicator that is non-specific to an automobile manufacturer; andloading the selected one of the first program and a second program from the first memory device of the programming device to the second memory device disposed within the tire pressure monitoring device.

24. The method as recited in claim 23, wherein the physical interface includes a physical electric connection between the tire pressure monitoring device and the programming device, and the selected first program or second program is loaded from the first memory device to the second memory device over the physical electrical connection.

25. The method as recited in claim 23, wherein loading of the first program and a second program from the first memory device of the programming device to a second memory device comprises flash programming the tire pressure monitoring device physically supported on the programming device.

26. A method of programming a tire pressure monitoring device comprising: receiving from a first memory of a programming device a first program or a second program, the first program configured to govern operations and communications of the tire pressure monitoring device according to a first protocol associated with a first automobile manufacturer, the second program configured to govern operations and communications of the tire pressure monitoring device according to a second protocol associated with a second automobile manufacturer, wherein a mounting location of the programming device and the tire pressure monitoring device has a physical interface formed there between comprising a cavity corresponding to a shape of the tire pressure monitoring device;loading the selected one of the received first program or the received second program to a second memory device disposed within the tire pressure monitoring device, the selection being accomplished by an indicator that is non-specific to an automobile manufacturer; andwherein a third program in the tire pressure monitoring device is deactivated after initialization of the tire pressure monitoring device is complete and the first program or the second program has been loaded into the second memory device, the third program having been active immediately before the deactivation occurs.

27. The method of claim 26 wherein the tire pressure monitoring device operates according to the selected one of the first program and the second program, and is not re-programmed.

28. The method of claim 26, wherein the physical interface includes a physical electric connection between the tire pressure monitoring device and the programming device, and the selected first program or the second program is loaded from the first memory device to the second memory device over the physical electrical connection.

29. The method of claim 26, wherein the mounting location substantially limits movement of the tire pressure monitoring device with respect to the programming device.

30. The method as recited in claim 26, wherein the mounting location includes an opening defining a shape that corresponds to an outer shape of the tire pressure monitoring device.

31. The method as recited in claim 26, wherein the mounting location orientates the tire pressure monitoring device widthwise and generally parallel with respect to the user interface.

32. A non-transient computer usable medium having a computer readable program code embodied therein, said computer readable program code adapted to be executed to implement a method of programming a tire pressure monitoring device, the method comprising: receiving from a first memory of a programming device a first program or a second program, the first program configured to govern operations and communications of the tire pressure monitoring device according to a first protocol associated with a first automobile manufacturer, the second program configured to govern operations and communications of the tire pressure monitoring device according to a second protocol associated with a second automobile manufacturer, wherein a mounting location of the programming device and tire pressure monitoring device have a physical interface formed there between comprising a cavity corresponding to a shape of the tire pressure monitoring device;loading the selected one of the received first program or the received second program to a second memory device disposed within the tire pressure monitoring device, the selection being accomplished by an indicator that is non-specific to an automobile manufacturer; anddeactivating a third program that has been active immediately before the deactivation occurs on the tire pressure monitoring device, the deactivation occurring after initialization of the tire pressure monitoring device is complete and the first program or the second program has been loaded into the second memory device.

33. The non-transient computer usable medium of claim 32 wherein the tire pressure monitoring device operates according to the selected one of the first program and the second program, and is not re-programmed.