Diagnosing malfunctioning wheel alignment system

• US 20050021198A1
• Filed: 07/26/2003
• Published: 01/27/2005
• Est. Priority Date: 07/25/2002
• Status: Active Grant

• Current Assignee: Snap-On Technologies Incorporated (Snap-On Incorporated)
• Original Assignee: Snap-On Technologies Incorporated (Snap-On Incorporated)
• Inventors: Jackson, David A., O'Mahony, Patrick B., Robb, Michael J.
• Granted Patent: US 7,643,915 B2
• Time in Patent Office: Days
• US Class Current: 701/29
• CPC Class Codes: G01B 11/275 for testing wheel alignment
• CPC Class Codes: G01B 11/2755 using photoelectric detection means
• CPC Class Codes: G01B 21/22 for measuring angles or tapers; for testing the alignment of axes
• CPC Class Codes: G01B 2210/26 Algorithms, instructions, databases, computerized methods and graphical user interfaces employed by a user in conjunction with the wheel aligner

Abstract

A diagnostic system allows a service technician to diagnose a malfunction that occurs during operation of a wheel alignment system after the malfunction has occurred and is no longer apparent. The system, which includes one or more cameras for gathering images of the alignment, gathers information in real time about the alignment of a plurality of wheels. The images include reflections from a target mounted on each wheel, and a processing system in communication with the cameras receives the images and generates analysis data based on them, the analysis data providing an analysis of the alignment of the wheels. A memory device stores the images and the analysis data, and a storage control causes the memory device to store the images and the analysis data in response to activation of the storage control by the operator during the occurrence of the malfunction. A display device in communication with the memory device selectively displays the images and the analysis data, and a play-back control causes the display device to selectively display the images and the analysis data to the service technician in response to activation of the play-back control after the occurrence of the malfunction.

Claims

1. A diagnostic system for diagnosing a malfunction during the operation of an instrument that gathers and analyzes real-time data associated with a vehicle, the system comprising:

one or more information-gathering devices for gathering the real-time data associated with the vehicle or the instrument;

a memory device in communication with the information-gathering devices for storing the real-time data associated with the vehicle or the instrument; and

a data replay system in communication with the memory device for playing back the real-time data associated with the vehicle or the instrument after the real time data associated with the vehicle or the instrument was gathered.

2. The diagnostic system of claim 1, wherein the one or more information-gathering devices includes a camera focused on an optical target in a wheel alignment system.

3. The diagnostic system of claim 2 wherein the real-time data comprises a plurality of images gathered from the camera.

4. The diagnostic system of claim 1, further comprising:

a data controller in communication with the information-gathering devices and the memory device that causes the memory device to store data from the information-gathering devices at pre-determined time intervals.

5. The diagnostic system of claim 3, wherein the pre-determined time intervals vary in frequency over time.

6. A diagnostic system for allowing a service technician to diagnose a malfunction during operation by an operator of a wheel alignment system that gathers information in real time about the alignment of a plurality of wheels comprising:

one or more cameras for gathering images of the alignment in real time, the images including a target mounted on a wheel;

a processing system in communication with the cameras for receiving the images and for generating analysis data based on the images, the analysis data providing an analysis of the alignment of the wheels;

a memory device for storing the images or the analysis data;

a storage control for causing the memory device to store the images and the analysis data in response to activation of the storage control by the operator during the occurrence of the malfunction;

a display device in communication with the memory device for selectively displaying the images and the analysis data; and

a play-back control for causing the display device to selectively display the images and the analysis data to the service technician in response to activation of the play-back control after the occurrence of the malfunction.

7. The diagnostic system of claim 6 wherein the storage control causes the storage of the images or the analysis data to be accomplished at predetermined intervals.

8. The diagnostic system of claim 7 wherein the pre-determined intervals vary in frequency over time.

9. A method of diagnosing a malfunction during the operation of an instrument that gathers and analyzes real-time wheel alignment data comprising:

receiving real-time wheel alignment data from at least one information-gathering device;

storing the real-time wheel alignment data in a memory device;

re-playing the stored, real-time wheel alignment data; and

analyzing the re-played data to diagnose a malfunction.

10. The method of claim 9 wherein the at least one information gathering device includes a video camera.

11. The method of claim 9 wherein the real-time wheel alignment data comprises images of a target mounted on a wheel.

12. The method of claim 9, further comprising:

processing the real-time wheel alignment data to generate wheel alignment analysis data;

storing the wheel alignment analysis data;

re-playing the wheel alignment analysis data in conjunction with the re-playing of the real-time wheel alignment data; and

analyzing the re-played wheel alignment analysis data to diagnose a malfunction.

13. The method of claim 9 further comprising transmitting the stored, real-time wheel alignment data across a communications network prior to re-playing it.

14. The method of claim 9 wherein the storing of real-time wheel alignment data in a memory device is done at pre-determined intervals that vary in frequency over time.

15. A means for diagnosing a malfunction during the operation of an instrument that gathers and analyzes real-time wheel alignment data comprising:

receiving means for receiving real-time wheel alignment data from at least one information-gathering means;

storage means for storing the real-time wheel alignment data;

playback means for re-playing the stored, real-time wheel alignment data; and

processor means for analyzing the re-played data to diagnose a malfunction.

16. The diagnostic means of claim 15 wherein the at least one means for gathering information gathering includes an imaging means.

17. The diagnostic means of claim 16 wherein the real-time wheel alignment data comprises images including an image of an optical target mounted on a wheel.

18. The diagnostic means of claim 15 wherein the processor means is a first processor means, the diagnostic means further comprising:

a second processor means for processing the real-time wheel alignment data to generate wheel alignment analysis data;

storage means for storing the wheel alignment analysis data;

the playback means further configured for re-playing the wheel alignment analysis data in conjunction with the re-playing of the real-time wheel alignment data; and

the first processor means further configured for analyzing the re-played wheel alignment analysis data to diagnose a malfunction.

19. The diagnostic means of claim 15 further comprising a transmitting means for transmitting the stored, real-time wheel alignment data across a communications network prior to re-playing it.

20. The diagnostic means of claim 15 wherein the storage means includes a controller means for causing the storing of wheel alignment data to be performed at pre-determined intervals that vary in frequency over time.

21. A diagnostic system for allowing a service technician to diagnose a malfunction during operation by an operator of a wheel alignment system that gathers information in real time about the alignment of a plurality of wheels comprising:

one or more sensors for generating images of a target mounted on each of the plurality of wheels;

a processing system in communication with the sensors for receiving the images and for generating analysis data based on the images, the analysis data providing an analysis of the alignment of the wheels;

a memory device for storing the images or the analysis data;

a storage control for causing the memory device to store the images or the analysis data;

a display device in communication with the memory device for selectively displaying the images or the analysis data; and

a play-back control for causing the display device to selectively display the images or the analysis data in response to activation of the play-back control.

22. A vehicle service system for allowing a service technician to diagnose a malfunction comprising:

one or more sensors for generating images associated with a vehicle;

a processing system in communication with the sensors for receiving the images or for generating analysis data based on the images, the analysis data providing an analysis of geometric parameters associated with the vehicle;

a memory device for storing the images or the analysis data;

a storage control for causing the memory device to store the images or the analysis data;

a display device in communication with the memory device for selectively displaying the images or the analysis data; and

a play-back control for causing the display device to selectively display the images or the analysis data in response to activation of the play-back control.

23. A vehicle service system allowing a service technician to diagnose a malfunction comprising:

one or more sensing means for generating images associated with a vehicle;

a processing system in communication with the sensing means for receiving the images and for generating analysis data based on the images, the analysis data providing an analysis of geometric parameters associated with the vehicle;

data storage means for storing the images or the analysis data;

storage control means for causing the data storage means to store the images or the analysis data;

display means in communication with the data storage means for selectively displaying the images or the analysis data; and

play-back control means for causing the display means to selectively display the images or the analysis data in response to activation of the play-back control.

24. A system for diagnosing a malfunction during the operation of a vehicle test instrument comprising:

means for receiving real-time data associated with the operations of the vehicle test instrument;

a memory device for storing the real-time data;

means for re-playing the stored, real-time data; and

a data processor for analyzing the re-played data to diagnose a malfunction of the vehicle test instrument.

25. A vehicle service system allowing a service technician to diagnose a malfunction comprising:

at least one sensing devices for sensing real-time signals associated with a vehicle or the operations of the vehicle service system;

a processing system configured to be in communication with the at least one sensing device for receiving the sensed signals and for generating analysis data based on the sensed signals, the analysis data providing an analysis of the vehicle or the operations of the vehicle service system;

a data storage device for storing the sensed signals or the analysis data;

a storage control device for causing the data storage device to store the sensed signals;

a display device; and

a play-back control device configured to be in communication with the data storage device or the display device, for causing the display device to selectively display the sensed signals stored in the data storage device.