PROCESS FOR UPDATING THE SCHEDULING OF A SERVICE STOP FOR A MACHINE

• US 20100280702A1
• Filed: 12/21/2007
• Published: 11/04/2010
• Est. Priority Date: 12/21/2007
• Status: Active Grant

• Current Assignee: Volvo Truck Corporation (Volvo AB)
• Original Assignee: Renault Trucks (Volvo AB)
• Inventors: Artus, Samuel
• Granted Patent: US 8,731,766 B2
• Time in Patent Office: Days
• US Class Current: 701/30
• CPC Class Codes: G06Q 10/06 Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
• CPC Class Codes: G07C 5/006 Indicating maintenance

Abstract

A process for updating the scheduling of a service stop for a machine includes determining, for at least one service operation, a service occurrence specification, monitoring the machine'"'"'s usage severity, and setting an earliest occurrence point and a latest occurrence point for the service occurrence specification which are determined according to the machine usage severity monitored during a monitoring interval.

Claims

1. (canceled)

2. Process for updating the scheduling of a service stop for a machine, comprising

determining, for at least one service operation, a service occurrence specification, p1 monitoring the machine'"'"'s usage severity, and

setting an earliest occurrence point and a latest occurrence point for the service occurrence specification which are determined according to the machine usage severity monitored during a monitoring interval,

wherein the step of setting the earliest and latest occurrence points takes into account the distribution of usage severity during the monitoring interval.

4. Process according to claim 2, wherein the machine'"'"'s usage severity is determined by monitoring, during the monitoring interval, at least one machine parameter, the method comprising establishing a value distribution for the parameter during the monitoring interval.

5. Process according to claim 4, wherein establishing a value distribution for the parameter during the monitoring interval comprises determining a number of severity classes defined each by a range of values for the at least one parameter, and determining a proportional frequency of presence of the parameter within each severity class.

7. Process according to claim 5, wherein the determination of the earliest and the latest occurrence point for a service occurrence specification includes calculating a mean occurrence point as a weighted value comprising the sum of, for each severity class, a theoretical specification corresponding to said the severity class weighted according the proportional frequency of presence of the parameter within the severity class.

8. Process according to claim 5, wherein the determination of the earliest occurrence point for a service occurrence specification depends on the frequency of presence of the parameter in the most severe class.

9. Process according to claim 7, wherein the determination of the earliest occurrence point for a service occurrence specification depends on the frequency of presence of the parameter in the most severe class, and wherein the determination of the earliest occurrence point for a service occurrence specification depends on a predefined specification for the most severe class, weighted according to frequency of presence of the parameter in the most severe class, and on the mean value weighted according to frequency of presence of the parameter in the other classes.

10. Process according to claim 5, wherein the determination of the latest occurrence point for a service occurrence specification depends on the frequency of presence of the parameter in the least severe class, or in a subset of least severe classes.

12. Process according to claim 10, wherein the determination of the latest occurrence point for a service occurrence specification depends on a predefined specification for the least severe class, weighted according to frequency of presence of the parameter in the least severe class, and wherein the determination of the latest occurrence point for a service occurrence specification depends on a predefined specification for the least severe class, weighted according to frequency of presence of the parameter in the least severe class, and on the mean value weighted according to frequency of presence of the parameter in the other classes.

13. Process according to claim 2, comprising converting the service occurrence specification of a series of service operations in date format.

14. Process according to claim 13, wherein it comprises the step of determining a service stop proposition interval where a maximum date which is the first latest occurrence point of all the service occurrence specification of the series of service operations.

15. Process according to claim 13, wherein it comprises the step of determining a minimum date of service stop proposition interval which is the last earliest end point of all service occurrence specification of the series of service operations.

17. Process according to claim 2, wherein the monitoring interval is a sliding interval until present.

18. Process according to claim 2, wherein the occurrence specification is the end of a service interval specification.

19. Process according to claim 2, wherein the updating is performed for a series of service operations for which a certain threshold has been passed according to a previous service stop scheduling.

3. (canceled)

6. (canceled)

11. Process according to wherein the determination of the latest occurrence point for a service occurrence specification depends on a predefined specification for the least severe class, weighted according to frequency of presence of the parameter in the least severe class.

16. (canceled)