Using On-Board Monitoring (Mode 6) Misfire Tests in Data Stream and Physical Addressing

• US 20180190041A1
• Filed: 12/29/2016
• Published: 07/05/2018
• Est. Priority Date: 12/29/2016
• Status: Active Grant

• Current Assignee: Bosch Automotive Service Solutions LLC (SPX Corporation)
• Original Assignee: Bosch Automotive Service Solutions LLC (SPX Corporation)
• Granted Patent: US 10,242,511 B2
• Time in Patent Office: Days
• CPC Class Codes: F02P 17/12 Testing characteristics of the spark, ignition voltage or current testing of sparking plugs H01T13/60
• 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
• CPC Class Codes: G07C 5/0808 Diagnosing performance data testing of vehicles G01M17/00; testing of electrical installation on vehicles G01R31/005
• CPC Class Codes: G07C 5/0825 using optical means

Abstract

A diagnostic tool configured to retrieve mode 6 cylinder misfire data from an engine controller using physical addressing of the engine controller. The mode 6 data is retrieved on a continuous and dynamic basis instead of a snapshot. The retrieved mode 6 data may be displayed on a GUI and may also contain other mode 6 data such as throttle position sensor, engine RPM and mass air flow.

Claims

1. A vehicle diagnostic tool, comprising:

a diagnostic processor configured to execute computing instructions;

a connector interface configured to connect with a connector in a vehicle and retrieve vehicle diagnostic data from the vehicle with the processor, wherein the vehicle diagnostic data is mode 6 cylinder misfire data;

a display in communication with the processor configured to display vehicle diagnostic data;

a wireless communication interface in communication with the processor and configured to communicate with a remote device having a vehicle diagnostic database; and

a memory in communication with the processor, the memory containing computing instructions, that when executed by the processor causes the processor to;

retrieve vehicle diagnostic data including diagnostic trouble codes (DTCs) and mode 6 cylinder misfire data, the mode 6 cylinder misfire data is retrieved continuously and dynamically by using physical addressing of an engine controller in the vehicle;

generate, on the display, a plurality of selectable icons corresponding to individual cylinder misfire data for each supported cylinder of the vehicle;

indicate on the selectable icons a number of cylinder misfire, if any, for each supported cylinder; and

activate a web browser on the remote device to start the repair process.

2. The diagnostic tool of claim 1, wherein indicate on the selectable icons the number of cylinder misfire is for a current trip driven by an operator.

3. The diagnostic tool of claim 1, wherein indicate on the selectable icons a number of cylinder misfire is for a predetermined trip rolling averages misfires.

4. The diagnostic tool of claim 1 further comprising retrieve other mode 6 data that includes RPM, position throttle sensor, O₂ sensor, or mass airflow.

5. The diagnostic tool of claim 4 further comprising compare with the processor other mode 6 data with the mode 6 cylinder misfire data to verify a misfire in a cylinder.

6. The diagnostic tool of claim 1 further comprising determine with the processor if at least one cylinder of the vehicle is supported based on whether a data bit is set for a cylinder.

7. The diagnostic tool of claim 1 further comprising request with the processor mode 6 data availability with OBD monitor ID using physical addressing of the engine controller.

8. A non-transitory machine-readable storage medium comprising machine-readable instructions for causing a processor of a diagnostic tool to execute the method of:

retrieving vehicle diagnostic data including diagnostic trouble codes (DTCs) and mode 6 cylinder misfire data, the mode 6 cylinder misfire data is retrieved continuously and dynamically by using physical addressing of an engine controller in the vehicle;

generating, on a display of the diagnostic tool, a plurality of selectable icons corresponding to individual cylinder misfire data for each supported cylinder of the vehicle;

indicating on the selectable icons a number of cylinder misfire, if any, for each supported cylinder; and

activating a web browser on the remote device to start the repair process.

9. The non-transitory machine-readable storage medium of claim 8, wherein indicating on the selectable icons the number of cylinder misfire is for a current trip driven by an operator.

10. The non-transitory machine-readable storage medium of claim 8, wherein indicating on the selectable icons a number of cylinder misfire is for a predetermined trip rolling averages misfires.

11. The non-transitory machine-readable storage medium of claim 10, wherein the predetermined number is 3 or 10.

12. The non-transitory machine-readable storage medium of claim 8 further comprising retrieving other mode 6 data that includes RPM, position throttle sensor, O₂ sensor, or mass airflow.

13. The non-transitory machine-readable storage medium of claim 12 further comprising comparing with the processor other mode 6 data with the mode 6 cylinder misfire data to verify a misfire in a cylinder.

14. The non-transitory machine-readable storage medium of claim 8 further comprising requesting with the processor mode 6 data availability with OBD monitor ID using physical addressing of the engine controller.

15. A vehicle diagnostic tool, comprising:

means for processing configured to execute computing instructions;

means for interfacing configured to connect with a connector in a vehicle and retrieve vehicle diagnostic data from the vehicle with the means for processing, wherein the vehicle diagnostic data is mode 6 cylinder misfire data;

means for displaying in communication with the means for processing configured to display vehicle diagnostic data;

means for wireless communication in communication with the means for processing and configured to communicate with a remote device having a vehicle diagnostic database; and

means for storing in communication with the means for processing, the memory containing instructions, that when executed by the means for processing causes the means for processing to;

retrieve vehicle diagnostic data including diagnostic trouble codes (DTCs) and mode 6 cylinder misfire data, the mode 6 cylinder misfire data is retrieved continuously and dynamically by using physical addressing of an engine controller in the vehicle;

generate, on the means for displaying, a plurality of selectable icons corresponding to individual cylinder misfire data for each supported cylinder of the vehicle;

indicate on the selectable icons a number of cylinder misfire, if any, for each supported cylinder; and

activate a web browser on the remote device to start the repair process.

16. The diagnostic tool of claim 15, wherein indicate on the selectable icons the number of cylinder misfire is for a current trip driven by an operator.

17. The diagnostic tool of claim 15, wherein indicate on the selectable icons a number of cylinder misfire is for a predetermined trip rolling averages misfires.

18. The diagnostic tool of claim 15 further comprising retrieve other mode 6 data that includes RPM, position throttle sensor, O₂ sensor, or mass airflow.

19. The diagnostic tool of claim 18 further comprising compare with the means for processing other mode 6 data with the mode 6 cylinder misfire data to verify a misfire in a cylinder.

20. The diagnostic tool of claim 15 further comprising request with the means for processing mode 6 data availability with OBD monitor ID using physical addressing of the engine controller.