Monitoring machine brake performance
AssigneeCaterpillar SARL
InventorsAndrew De Haseth, Raymond Lathan, Shinya Sono, Ian Macdonald, Rodney Menold, Timothy Schwartz, David Wisley
Life of this patent
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Abstract
Monitoring the brake performance of a brake system of a machine and a control systems for performing such monitoring. The machine's brake system is monitored by detecting a brake engagement for decelerating the machine. When a brake engagement is detected, a parasitic loss decelerating the machine during the brake engagement is determined. The parasitic loss is used to predict deceleration of the machine during the brake engagement Brake performance of the brake system of the machine is processed from the predicted deceleration.
Claims29
A method of monitoring brake performance of a brake system of a machine, the method comprising:
- detecting a brake engagement for decelerating the machine;
- determining a parasitic loss decelerating the machine during the brake engagement;
- determining a predicted deceleration of the machine during the brake engagement based upon the parasitic loss;
- and
- determining brake performance based upon the predicted deceleration,
- wherein the parasitic loss comprises an estimated windage loss in the machine, and the estimated windage is determined from an oil temperature of oil lubricating a rotating component of an engine system or a powertrain of the machine.
A system comprising:
- a machine comprising a brake system;
- and
- a control system for monitoring the brake performance of the brake system and configured to:
- detect a brake engagement for decelerating the machine;
- determine a parasitic loss decelerating the machine during the brake engagement;
- determine a predicted deceleration of the machine during the brake engagement based upon the parasitic loss;
- and
- determine brake performance based upon the predicted deceleration,
- wherein the parasitic loss comprises an estimated windage loss in the machine, and the estimated windage is determined from an oil temperature of oil lubricating a rotating component of an engine system or a powertrain of the machine.
Dependencies are inferred from the claim text.