公开(公告)号：US10378426B2

公开(公告)日：2019-08-13

申请号：US15381904

申请日：2016-12-16

Applicant: Caterpillar Inc.

Inventor： Dongming Tan ,  Doug A. Long ,  Neil Terry ,  Anthony L. Deluca ,  Jianlong Xu ,  Rohit K. Paramatmuni ,  Joseph L. Kennedy ,  Michael J. Campagna

IPC: G07C5/00 ,  F02M26/49 ,  F01P11/14 ,  G01N25/72 ,  F01P11/16 ,  F02M26/48

Abstract: A system for determining a remaining useful life of a cooling component operatively connected to a prime mover. A controller performs a thermal strain analysis that includes determining the power output of the prime mover based upon sensor signals, determining a temperature output of the prime mover based upon the power output, determining a temperature at each of the plurality of analysis locations based upon the temperature output, determining a temperature difference based upon the temperature at each respective one of the plurality of analysis locations, and determining a thermal strain based upon the temperature difference. The controller repeats the thermal strain analysis at time intervals over a period of time, determines an accumulated damage for the cooling component based upon the thermal strain from each thermal strain analysis, and determines a remaining useful life of the cooling component based upon the material characteristics and the accumulated damage.

公开(公告)号：US20180171861A1

公开(公告)日：2018-06-21

申请号：US15381904

申请日：2016-12-16

Applicant: Caterpillar Inc.

Inventor： Dongming Tan ,  Doug A. Long ,  Neil Terry ,  Anthony L. Deluca ,  Jianlong Xu ,  Rohit K. Paramatmuni ,  Joseph L. Kennedy ,  Michael J. Campagna

IPC: F01P11/14 ,  G01M15/14 ,  G01N25/72 ,  G07C5/00 ,  G05B15/02

CPC classification number: F01P11/14 ,  F01P11/16 ,  F01P2023/08 ,  F01P2025/13 ,  F01P2025/46 ,  F01P2025/50 ,  F01P2025/62 ,  F01P2025/64 ,  F01P2031/20 ,  F01P2060/02 ,  F01P2060/04 ,  F02M26/48 ,  F02M26/49 ,  G01N25/72 ,  G07C5/008

Abstract: A system for determining a remaining useful life of a cooling component operatively connected to a prime mover. A controller performs a thermal strain analysis that includes determining the power output of the prime mover based upon sensor signals, determining a temperature output of the prime mover based upon the power output, determining a temperature at each of the plurality of analysis locations based upon the temperature output, determining a temperature difference based upon the temperature at each respective one of the plurality of analysis locations, and determining a thermal strain based upon the temperature difference. The controller repeats the thermal strain analysis at time intervals over a period of time, determines an accumulated damage for the cooling component based upon the thermal strain from each thermal strain analysis, and determines a remaining useful life of the cooling component based upon the material characteristics and the accumulated damage.