System and method for determining brake lining wear based on cooling wave propagation time
US6260665A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 18, 1998 |
| Grant date | Jul 17, 2001 |
| Priority date | — |
| Expiry date | Dec 18, 2018 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2066/006
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A system for determining the amount of material in a brake lining includes a frictional brake surface and a brake lining having a sensor for producing an output signal indicating the temperature of the sensor. A brake actuation system actuates the brake lining against the frictional brake surface and, thereafter, releases the brake lining from the frictional brake surface. A timer measures a time period beginning when the brake lining is released from the frictional brake surface and ending when the sensor output signal reaches a return point indicative of the brake lining having cooled. A controller compares the measured time period to electronically stored predetermined values to determine the thickness of the brake lining. The invention further includes a method for determining the amount of brake lining material based upon this structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.