Vehicle diagnostic device with adaptive data retrieval and method

• US 7,577,503 B2
• Filed: 09/22/2006
• Issued: 08/18/2009
• Est. Priority Date: 09/23/2005
• Status: Active Grant

• Current Assignee: SPX Corporation
• Original Assignee: SPX Corporation
• Inventors: Bertosa, Thomas, Gessner, Michael, Somos, Neil
• Primary Examiner(s): Nolan; Peter D
• Application Number:
  US11/524,944
• Publication Number:
  US 20070073460A1
• Time in Patent Office: 1,061 Days
• Field of Search: 701 29- 35
• US Class Current: 701/33
• CPC Class Codes: G01M 15/02 Details or accessories of testing apparatus
• CPC Class Codes: G01M 15/102 by monitoring exhaust gases

Abstract

A diagnostic tool with an adaptive method is provided that will adaptively change the time interval at which the tool interrogates the vehicle if the tool determines if a diagnostic test is not progressing. The tool can interrogate at that interval until it reaches the iteration limit. The tool can also restart at the previous time interval and iteration limit if the tool recognizes that it was previously communicated with the vehicle.

Claims

1. A vehicle diagnostic tool comprising:

a processor that can be operably coupled to a vehicle diagnostic connector to diagnose a vehicle;

at least one vehicle communication protocol interface operatively coupled to the processor and allows the processor to communicate with the vehicle at a time interval;

a memory operably coupled to processor;

a software stored in the memory, wherein the software adaptively changes the time interval at which the processor communicates with the vehicle when the software detects that the data being received from the vehicle is not progressing for a particular diagnostic test; and

a housing surrounding the processor, the at least one vehicle communication protocol interface, the memory, wherein the housing has a port configured to couple to a computing device; and

wherein the software saves characterization data of a plurality of vehicles, and the software determines whether the vehicle is one of plurality of vehicles that the tool previously tested and, if the vehicle has been previously tested by the tool, the software is configured to retrieve a previously saved time interval and iteration limit enabling the tool to begin communicating with the vehicle at the previously saved time interval and iteration limit.

2. The tool of claim 1, wherein the software adaptively changes the time interval at which the tool communicates with the vehicle, and allows the tool to communicate at the time interval before an iteration limit is reached.

3. The tool of claim 1, wherein the time interval is one of the following:

1 minute, 3 minutes, 5 minutes, 10 minutes, 15 minutes, 30 minutes, 1 hour, or 3 hours.

4. The tool of claim 2, wherein the iteration limit is one of the following:

5 times, 10 times, 15 times, or 20 times.

5. A method of adaptively communicating with a vehicle using a diagnostic tool, comprising:

connecting the diagnostic tool to a data link connector of the vehicle;

reading characterizing information of the vehicle;

communicating with the vehicle to perform a diagnostic test on the vehicle with the diagnostic tool at a first time interval;

determining whether the diagnostic test with the vehicle is progressing based on the sequence of the diagnostic test;

changing to a second time interval and communicating at the second interval for an iteration limit when the diagnostic test is not progressing;

comparing the characterizing information of the vehicle with previously saved characterizing information to determine whether the vehicle was previously tested; and

wherein if the vehicle was previously tested, the tool retrieves a previously saved time interval and iteration limit and begins communicating with the vehicle at the previously saved time interval and iteration limit.

6. The method of claim 5, wherein the vehicle which was previously tested includes the vehicle with which the tool is still connected but the tool was powered down or the tool was disconnected from the vehicle, but is now reconnected for further testing.

7. The method of claim 5, wherein the second time interval is one of the following:

1 minute, 3 minutes, 5 minutes, 10 minutes, 15 minutes, 30 minutes, 1 hour, or 3 hours.

8. The method of claim 5, wherein the iteration limit is one of the following:

5 times, 10 times, 15 times, or 20 times.

9. The method of claim 5, wherein when the iteration limit is reached at the first time interval, then the tool proceeds to the second time interval until the iteration limit is reached at the second time interval.

10. The method of claim 5, wherein the diagnostic test tests whether the vehicle is ready for emissions testing.

11. The method of claim 5, wherein the characterizing information is information that allows the tool to determine whether or not the tool has communicated with the vehicle.

12. A computer readable medium comprising a computer program, wherein the computer program, when accessed, results in a vehicle diagnostic tool:

reading characterizing information of a vehicle;

communicating with the vehicle to perform a diagnostic test on the vehicle with the diagnostic tool at a first time interval;

determining whether the diagnostic test with the vehicle is progressing based on the sequence of the diagnostic test;

changing to a second time interval and communicating at the second interval for an iteration limit when the diagnostic test is not progressing;

comparing the characterizing information of the vehicle with previously saved characterizing information to determine whether the vehicle was previously tested; and

wherein if the vehicle was previously tested, the tool retrieves a previously saved time interval and iteration limit and begins communicating with the vehicle at the previously saved time interval and iteration limit.

13. The computer readable medium of claim 12, wherein the vehicle which was previously tested includes the vehicle with which the tool is still connected but the tool was powered down or the tool was disconnected from the vehicle, but is now reconnected for further testing.

15. The computer readable medium claim 12, wherein the iteration limit is one of the following:

5 times, 10 times, 15 times, or 20 times.

16. The computer readable medium of claim 12, wherein when the iteration limit is reached at the first time interval, then the tool proceeds to the second time interval until the iteration limit is reached at the second time interval.

17. The computer readable medium of claim 12, wherein the diagnostic test tests whether the vehicle is ready for emissions testing.

18. The computer readable medium of claim 12, wherein the characterizing information is information that allows the tool to determine whether or not the tool has communicated with the vehicle.

14. The computer readable medium 12, wherein the second time interval is one of the following:

1 minute, 3 minutes, 5 minutes, 10 minutes, 15 minutes, 30 minutes, 1 hour or 3 hours.