Method and system for determining that a failure has occurred at or in a wheel end bearing of a vehicle
AssigneeVolvo Truck Corporation
InventorsLeon Henderson, Ramachandran Sandrasekaran
Life of this patent
Estimating the term…
Abstract
The invention relates to a method of determining that a failure has occurred at or in a wheel end bearing of a vehicle. An estimated value of the temperature of the wheel end bearing is calculated by a processing circuitry. A measured value of the temperature of the wheel end bearing is acquired by a temperature sensor. The measured value is compared with the estimated value by the processing circuitry. When the measured value deviates from the estimated value by a predefined difference or more, then the processing circuitry determines that a failure has occurred. The invention also relates to a system for determining that a failure has occurred.
Claims15
A method of determining that a failure has occurred at or in a wheel end bearing of a vehicle, the method comprising:
- calculating, using a processing circuitry, an estimated value of a temperature of the wheel end bearing based on operating conditions of the wheel end bearing,
- acquiring, using a temperature sensor, a measured value of the temperature of the wheel end bearing,
- comparing, using the processing circuitry, the measured value with the estimated value, and
- determining, using the processing circuitry, that the failure has occurred when the measured value deviates from the estimated value by at least a predefined difference.
A system for determining that a failure has occurred at or in a wheel end bearing of a vehicle comprising:
- a processing circuitry configured to calculate an estimated value of a temperature of the wheel end bearing based on operating conditions of the wheel end bearing, and
- a temperature sensor configured to acquire a measured value of the temperature of the wheel end bearing,
- wherein the processing circuitry is configured to compare the measured value with the estimated value, and
- wherein the processing circuitry is configured to determine that the failure has occurred when the measured value deviates from the estimated value by at least a predefined difference.
Dependencies are inferred from the claim text.