US 10,890,121 B1
Prognostic torsional damper damage determination in machine system
Murali Prasad Logendran, Dunlap, IL (US); Mandar Arvind Joshi, Dunlap, IL (US); Andrew Duncan Rockwell, East Peoria, IL (US); and Rick Ian Zadoks, Dunlap, IL (US)
Assigned to Caterpillar Inc., Peoria, IL (US)
Filed by Caterpillar Inc., Peoria, IL (US)
Filed on Nov. 1, 2019, as Appl. No. 16/672,093.
Int. Cl. F16F 15/173 (2006.01); F02B 75/06 (2006.01); F02D 28/00 (2006.01); G08B 21/18 (2006.01); G08B 31/00 (2006.01); G08B 5/36 (2006.01); B60W 30/20 (2006.01)
CPC F02D 28/00 (2013.01) [F02B 75/06 (2013.01); F16F 15/173 (2013.01); G08B 5/36 (2013.01); G08B 21/182 (2013.01); G08B 31/00 (2013.01); B60W 2030/206 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for prognostic warning of damper damage in a machine system comprising:
monitoring a machine operating parameter that is linked with at least one of an amplitude, a frequency, or a direction of torsional loads on a crankshaft in the machine system having a viscous torsional damper coupled therewith;
monitoring a temperature parameter;
populating an operating history of the machine system based on the monitored machine operating parameter and the monitored temperature parameter;
calculating a damper damage term based on the populated operating history; and
triggering a damper damage warning based on the calculated damper damage term.