METHOD AND SYSTEM FOR PERFORMING DIAGNOSTICS OR SOFTWARE MAINTENANCE FOR A VEHICLE

• US 20120041635A1
• Filed: 09/10/2010
• Published: 02/16/2012
• Est. Priority Date: 08/13/2010
• Status: Active Grant

• Current Assignee: Deere & Company
• Original Assignee: Deere & Company
• Inventors: Johnson, Michael R., Colavita, Daniel, Pullen, Tammy R.
• Granted Patent: US 8,412,406 B2
• Time in Patent Office: Days
• US Class Current: 701/31.4
• CPC Class Codes: G06F 11/0739 in a data processing system embedded in automotive or aircraft systems
• CPC Class Codes: G06F 11/0757 by exceeding a time limit, i.e. time-out, e.g. watchdogs
• CPC Class Codes: G06F 11/0793 Remedial or corrective actions recovery from an exception in an instruction pipeline G06F9/3861; by retry G06F11/1402; for recovering from a failure of a protocol instance or entity H04L69/40
• CPC Class Codes: G06F 11/2294 by remote test
• CPC Class Codes: G06F 11/3003 Monitoring arrangements specially adapted to the computing system or computing system component being monitored
• CPC Class Codes: G06F 11/3013 where the computing system is an embedded system, i.e. a combination of hardware and software dedicated to perform a certain function in mobile devices, printers, automotive or aircraft systems testing or monitoring of control systems or parts thereof G05B23/02
• CPC Class Codes: G06F 11/3409 for performance assessment
• CPC Class Codes: G06F 11/3466 Performance evaluation by tracing or monitoring
• CPC Class Codes: G06F 2201/81 Threshold
• CPC Class Codes: G06F 2201/865 Monitoring of software
• CPC Class Codes: G06F 2201/88 Monitoring involving counting
• CPC Class Codes: G07C 5/008 communicating information to a remotely located station transmission systems for measured values G08C
• CPC Class Codes: G07C 5/085 using electronic data carriers

Abstract

A method and system for performing diagnostics or software maintenance on a vehicle comprises a data processor for performing a particular task. A resource monitor is arranged for determining if resource consumption of the data processor for the respective particular task exceeds a threshold amount of resource consumption. A loop counter is arranged to increment a loop counter in a data storage device associated with the data processor if the resource consumption for the respective particular task exceeds the threshold amount. A poison task module is capable of designating the particular task as a poison message if the data processor has been rebooted a maximum number of times as indicated by the loop counter.

Claims

1. A method of performing remote diagnostic on a vehicle, the method comprising:

performing a particular task by a data processor;

determining if resource consumption of the data processor for the respective particular task exceeds a threshold amount of resource consumption;

incrementing a loop counter in a data storage device associated with the data processor if the resource consumption for the respective particular task exceeds the threshold amount; and

designating the particular task as a poison message if the data processor has been rebooted a maximum number of times as indicated by the loop counter.

2. The method according to claim 1 wherein the performing of the task comprises recording data at the vehicle electronics to support engineering analysis or diagnostics on vehicle components, systems or performance.

3. The method according to claim 1 further comprising:

segregating the poison message in the data storage device to prevent reading or writing to one or more application programs.

4. The method according to claim 1 further comprising:

determining if a watchdog timer expires without being cleared during a timeout period, the watchdog timer tracking the performance of the particular task; and

incrementing a loop counter in the data storage device if the watchdog timer expires without being cleared during the timeout period.

5. The method according to claim 4 further comprising:

rebooting the data processor if the watchdog timer expires without being cleared during the timeout period.

6. The method according to claim 1 further comprising:

rebooting the data processor if the resource consumption for the respective particular task exceeds the threshold amount.

7. The method according to claim 6 further comprising:

executing the particular task again after the rebooting of the data processor, if the data processor has not rebooted more than the maximum number of times.

8. A system of performing remote diagnostic on a vehicle, the system comprising:

a data processor for performing a particular task;

a resource monitor for determining if resource consumption of the data processor for the respective particular task exceeds a threshold amount of resource consumption;

a loop counter for incrementing a loop counter in a data storage device associated with the data processor if the resource consumption for the respective particular task exceeds the threshold amount; and

a poison task module for designating the particular task as a poison message if the data processor has been rebooted a maximum number of times as indicated by the loop counter.

9. The system according to claim 8 wherein the task comprises recording data at the vehicle electronics to support engineering analysis or diagnostics on vehicle components, systems or performance.

10. The system according to claim 8 wherein the poison task module is adapted to segregate the poison message in the data storage device to prevent reading or writing to one or more application programs.

11. The system according to claim 8 further comprising:

a watchdog timer arranged for determining if the watchdog timer expires without being cleared during a timeout period, the watchdog timer tracking the performance of the particular task; and

a loop counter in the data storage device, the loop counter incremented if the watchdog timer expires without being cleared during the timeout period.

12. The system according to claim 11 further comprising:

reset logic associated with the watchdog timer for rebooting the data processor if the watchdog timer expires without being cleared during the timeout period.

13. The system according to claim 8 further comprising:

reset logic arranged for rebooting the data processor if the resource consumption for the respective particular task exceeds the threshold amount.

14. The system according to claim 13 further comprising:

the data processor having software instructions to execute the particular task again after the rebooting of the data processor, if the data processor has not rebooted more than the maximum number of times.