Patent ID: 11946538
Assignee: HALLIBURTON ENERGY SERVICES, INC.
Field: Measurement (Instruments)
Classification: CPC F  G | IPC F  G

Claim 14:
15. The apparatus of claim 13, further comprising program code to:
determine that the transmission has changed to a different gear from the gear the transmission had operated in over the first time window and the second time window;
determine, for a third time window, a third number value for a third slip revolutions using a fifth set of speed measurements for the first shaft and a sixth set of speed measurements for the second shaft, adjusted for the ratio of the different gear that the transmission was engaged in during the third time window and based on a ratio of a number of revolutions of the first shaft to a number of revolutions of the second shaft over the third time window;
determine, for a fourth time window, a fourth number value for a fourth slip revolutions using a seventh set of speed measurements and the eight set of speed measurements adjusted for the ratio of the different gear that the transmission was engaged in during the fourth time window and based on a ratio of a number of revolutions of the first shaft to a number of revolutions of the second shaft over the fourth time window; and
determining a health status for a different clutch of the transmission associated with the different gear used to operate the transmission over the third time window and the fourth time window and based on a determined rate of change between the third number value for the third slip revolutions and the fourth number value for the fourth set of slip revolutions.