Brake pad wear and temperature sensor
US9964168B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 9, 2016 |
| Grant date | May 8, 2018 |
| Priority date | — |
| Expiry date | Nov 9, 2036 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2066/001
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A brake pad monitoring sensor includes an erodible, electrically non-conductive body, and an electrical circuit disposed within the body. The electrical circuit includes a first wear indicating portion. Electrical continuity of the first wear indicating portion is broken when the body erodes, in response to abrasion against a brake rotor, beyond a first depth relative to a contact surface of the body, to sense a first degree of wear. The electrical circuit includes a first thermocouple that is operable to generate a temperature dependent voltage signal for sensing a temperature of the brake pad. The brake pad monitoring sensor may be used to determine both brake pad wear, and brake pad temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.