System and method for testing the integrity of a vehicle testing/diagnostic system

• US 7,945,358 B2
• Filed: 08/18/2006
• Issued: 05/17/2011
• Est. Priority Date: 08/18/2005
• Status: Expired due to Fees

• Current Assignee: Envirotest Corp. (Opus Group AB)
• Original Assignee: Environmental Systems Products Incorporated
• Inventors: Avery, Donald Jackson, Goretti, Terry Edward
• Primary Examiner(s): Tran; Khoi
• Assistant Examiner(s): JEN, MINGJEN
• Application Number:
  US11/506,000
• Publication Number:
  US 20070043488A1
• Time in Patent Office: 1,733 Days
• Field of Search: 701/29, 701/31, 701/33, 340/425.1
• US Class Current: 701/33
• CPC Class Codes: G01R 31/007 using microprocessors or computers
• CPC Class Codes: G06F 11/2215 to test error correction or detection circuits
• CPC Class Codes: G07C 2205/02 using a vehicle scan tool
• CPC Class Codes: G07C 5/008 communicating information to a remotely located station transmission systems for measured values G08C

Abstract

A system and method for testing the integrity of a vehicle testing/diagnostic system is provided. Examples of vehicle testing/diagnostic systems may include any equipment (portable or stationary) found in an automotive maintenance and/or testing environment (or other environment) that is capable of communicating with vehicle on-board diagnostic (OBD) systems. Prior to conducting an OBD test on one or more vehicles, an integrity testing system interfaces with a vehicle testing/diagnostic system to determine whether the vehicle testing/diagnostic system is capable of communicating via one or more predetermined communications protocols.

Claims

1. An integrity testing system for testing the integrity of a vehicle testing/diagnostic system that is capable of communicating with an on-board diagnostic system of a vehicle, the integrity testing system comprising:

an integrity testing connector that is configured to interface with a vehicle testing/diagnostic system by connecting with a connector of the vehicle testing/diagnostic system that is configured to connect with an on-board diagnostic system of a vehicle;

a receiving module that receives, via the integrity testing connector, signals from the vehicle testing/diagnostic system that are configured to establish a communication link between the vehicle testing/diagnostic system and an on-board diagnostic system;

a determination module that determines, based on the signals received by the receiving module, whether the vehicle testing/diagnostic system is capable of establishing a communication link with an on-board diagnostic system of a vehicle via one or more predetermined communications protocols; and

a results module that provides an output conveying the determinations of the determination module.

2. The system of claim 1, wherein the receiving module groups the received signals in accordance with the one or more predetermined communications protocols.

3. The system of claim 1, wherein the integrity testing connector comprises a data link connector.

4. The system of claim 3, wherein the data link connector comprises sixteen cavities adapted to receive sixteen pins of a sixteen-pin connector associated with the vehicle testing/diagnostic system, the sixteen-pin connector of the vehicle testing/diagnostic system being configured to interface with a sixteen-cavity connector of an on-board diagnostic system of a vehicle.

5. The system of claim 1, wherein the results module conveys individual determinations as to whether the vehicle testing/diagnostic system is capable of communicating with the on-board diagnostic system via the one or more predetermined communications protocols.

6. The system of claim 5, wherein the individual determinations comprise an individual determination for each of the one or more predetermined communications protocols.

7. The system of claim 1, wherein the results module conveys an overall determination for the one or more predetermined protocols that is an aggregation of the individual determinations of the one or more predetermined protocols.

8. The system of claim 1, wherein the one or more predetermined protocols comprises one or more of an international standard organization protocol, a keyword protocol, a variable pulse width protocol, a pulse width modulated protocol, or a controller area network protocol.

9. A method of testing the integrity of a vehicle testing/diagnostic system that is capable of communicating with an on-board diagnostic system of a vehicle, the method comprising:

receiving at an integrity testing system, via an integrity testing connector, signals transmitted by a vehicle testing/diagnostic system that are configured to establish a communication link between the vehicle testing/diagnostic system and an on-board diagnostic system of a vehicle;

determining, based on the received signals, whether the vehicle testing/diagnostic system is capable of establishing a communication link with an on-board diagnostic system of a vehicle via one or more predetermined communications protocols; and

providing an output conveying the determinations.

10. The method of claim 9, further comprising grouping the received signals in accordance with the one or more predetermined communications protocols.

11. The method of claim 9, wherein the connector comprises a data link connector.

12. The method of claim 11, wherein the data link connector comprises sixteen cavities adapted to receive sixteen pins of a sixteen-pin connector associated with the vehicle testing/diagnostic system, the sixteen-pin connector of the vehicle testing/diagnostic system being configured to connect with the on-board diagnostic system of the vehicle.

13. The method of claim 9, wherein determining comprises making individual determinations as to whether the vehicle testing/diagnostic system is capable of communicating with the on-board diagnostic system via the one or more predetermined communications protocols.

14. The method of claim 13, wherein the individual determinations comprise an individual determination for each of the one or more predetermined communications protocols.

15. The method of claim 13, wherein conveying the determinations comprises conveying an overall determination for the one or more predetermined protocols that is an aggregation of the individual determinations of the one or more predetermined protocols.

16. The method of claim 9, wherein the one or more predetermined protocols comprises one or more of an international standard organization protocol, a keyword protocol, a variable pulse width protocol, a pulse width modulated protocol, or a controller area network protocol.